IBM Laptop 360X (2620)
IBM Laptop 360X (2620)
IBM Laptop 360X (2620)
servicemanuals4u
IBM Mobile Systems S82G-1502-03
April 1995
April 1995
IBM
Note
Before using this information and the product it
supports, be sure to read the general information
under “Notices” on page 497.
Important
iii
Related Publications
The following mobile product publications are available
through IBM or your IBM Authorized Dealer.
Related Diskettes
The following diskettes are available through IBM or your
IBM Authorized Dealer.
v
vi IBM Mobile Systems HMM
Contents
Introduction . . . . . . . . . . . . . . . . . . . 1
Portable Computer Descriptions . . . . . . . . . . 2
Drive and Diskette Compatibility Matrix . . . . . . . 4
Important Service Information . . . . . . . . . . . 5
Safety Notices (Multi-lingual Translations) . . . . . 7
Safety Information . . . . . . . . . . . . . . . . 14
Laser Compliance Statement . . . . . . . . . . . 19
Screw Size Chart . . . . . . . . . . . . . . . . . 20
C Color T Tablet
M Megabyte TPF ThinkPad File
P Pen
C Color T Tablet
M Megabyte TPF ThinkPad File
P Pen
Introduction 3
Drive and Diskette Compatibility Matrix
The following table provides identification information for
3.5-inch drives.
Diskette Identifying
Drive Mark
3.5-Inch - 1.44MB 1.44 on the eject button
3.5-Inch - 2.88MB 2.88 on the eject button
Diskette Identifying
Drive Mark
5.25-Inch - 360KB (External) Asterisk on bezel
5.25-Inch - 1.2MB (Internal) 1.2 on the eject button
Introduction 5
The advanced diagnostic tests are intended to test only
IBM products. Non-IBM products or modified options can
give false errors and invalid responses.
Safety Notice 1
Introduction 7
Safety Notice 2
Introduction 9
Safety Notice 4
If the LCD breaks and the fluid from inside the LCD
gets into your eyes or on your hands, immediately
wash the affected areas with water for at least 15
minutes. Seek medical care if any symptoms from the
fluid are present after washing.
Introduction 11
Safety Notice 6
Safety Notice 7
Introduction 13
Safety Information
The following section contains the safety information that
you need to be familiar with before servicing an IBM
mobile computer.
General Safety
Follow these rules to ensure general safety:
Observe good housekeeping in the area of the
machines during and after maintenance.
When lifting any heavy object:
1. Ensure you can stand safely without slipping.
2. Distribute the weight of the object equally
between your feet.
3. Use a slow lifting force. Never move suddenly
or twist when you attempt to lift.
4. Lift by standing or by pushing up with your leg
muscles; this action removes the strain from the
muscles in your back. Do not attempt to lift any
objects that weigh more than 16 kg (35 lb) or
objects that you think are too heavy for you.
Do not perform any action that causes hazards to the
customer, or that makes the equipment unsafe.
Before you start the machine, ensure that other
service representatives and the customer's personnel
are not in a hazardous position.
Place removed covers and other parts in a safe
place, away from all personnel, while you are
servicing the machine.
Keep your tool case away from walk areas so that
other people will not trip over it.
Do not wear loose clothing that can be trapped in the
moving parts of a machine. Ensure that your sleeves
are fastened or rolled up above your elbows. If your
hair is long, fasten it.
Insert the ends of your necktie or scarf inside clothing
or fasten it with a nonconductive clip, approximately 8
centimeters (3 inches) from the end.
Do not wear jewelry, chains, metal-frame eyeglasses,
or metal fasteners for your clothing.
Remember: Metal objects are good electrical
conductors.
Wear safety glasses when you are: hammering,
drilling soldering, cutting wire, attaching springs, using
solvents, or working in any other conditions that might
be hazardous to your eyes.
After service, reinstall all safety shields, guards,
labels, and ground wires. Replace any safety device
that is worn or defective.
Reinstall all covers correctly before returning the
machine to the customer.
Important
Introduction 15
Regularly inspect and maintain your electrical hand
tools for safe operational condition.
Do not use worn or broken tools and testers.
Never assume that power has been disconnected
from a circuit. First, check that it has been
powered-off.
Always look carefully for possible hazards in your
work area. Examples of these hazards are moist
floors, nongrounded power extension cables, power
surges, and missing safety grounds.
Do not touch live electrical circuits with the reflective
surface of a plastic dental mirror. The surface is
conductive; such touching can cause personal injury
and machine damage.
Do not service the following parts with the power on
when they are removed from their normal operating
places in a machine:
– Power supply units
– Pumps
– Blowers and fans
– Motor generators
and similar units. (This practice ensures correct
grounding of the units.)
If an electrical accident occurs:
– Use caution; do not become a victim
yourself.
– Switch off power.
– Send another person to get medical aid.
Checklist:
1. Check exterior covers for damage (loose, broken, or
sharp edges).
2. Power-off the computer. Disconnect the power cord.
3. Check the power cord for:
a. A third-wire ground connector in good condition.
Use a meter to measure third-wire ground
continuity for 0.1 ohm or less between the
external ground pin and frame ground.
b. The power cord should be the appropriate type
as specified in the parts listings.
c. Insulation must not be frayed or worn.
4. Remove the cover.
5. Check for any obvious non-IBM alterations. Use
good judgment as to the safety of any non-IBM
alterations.
6. Check inside the unit for any obvious unsafe
conditions, such as metal filings, contamination, water
or other liquids, or signs of fire or smoke damage.
7. Check for worn, frayed, or pinched cables.
8. Check that the power-supply cover fasteners (screws
or rivets) have not been removed or tampered with.
Introduction 17
Handling Electrostatic
Discharge-Sensitive Devices
Any computer part containing transistors or integrated
circuits (ICs) should be considered sensitive to electrostatic
discharge (ESD). ESD damage can occur when there is a
difference in charge between objects. Protect against ESD
damage by equalizing the charge so that the machine, the
part, the work mat, and the person handling the part are all
at the same charge.
Notes:
1. Use product-specific ESD procedures when they
exceed the requirements noted here.
2. Make sure that the ESD protective devices you use
have been certified (ISO 9000) as fully effective.
Grounding Requirements
Electrical grounding of the computer is required for
operator safety and correct system function. Proper
grounding of the electrical outlet can be verified by a
certified electrician.
CAUTION:
Do not open the drive; no user adjustments or
serviceable parts are inside.
Introduction 19
Screw Size Chart
Use the chart below to match the size and shape of the
screws used in the computer you are servicing.
A Silver
B Black
C Silver
D Brass
E Black
F Black
G Black
H Brass
J Silver
K Brass
L Silver
M Silver
N Silver
P Black
Q Brass
R Brass
S Black
T Brass
U Black
V Brass
W Black
X Black
Y Brass
Z Brass
AA Black
BB Brass
CC Brass
DD Black
EE Black
FF Silver
Introduction 21
Screw Size Chart (continued): Use the chart below
to match the size and shape of the screws used in the
computer you are servicing.
GG Silver
HH Brass
JJ Silver
KK Black
LL Brass
MM Brass
NN Silver
PP Brass
QQ Brass
RR Brass
SS Brass
TT Black
UU Black
WW Silver
XX Black
Symptom Go to
Power failure. (The “Power Systems Checkout” on
power indicator does page 29.
not go on or stay on.)
POST does not “Symptom-to-FRU Index” on
complete. No page 34, and then use the No
beeps/error code are Beep Symptoms table.
indicated.
POST beeps, but no “Symptom-to-FRU Index” on
error codes are page 34, and then use the Beep
displayed. Symptoms table.
POST detected an “Symptom-to-FRU Index” on
error and displayed page 34, and then use the
numeric error codes. Numeric Error Codes table.
The diagnostic test “FRU Codes” on page 37.
detected an error and
displayed an FRU
code.
The configuration is “Checking the Installed Devices
not the same as the List” on page 46.
installed devices.
Other symptoms “Symptom-to-FRU Index” on
(such as LCD display page 34, and then use the table
problems). for related symptoms.
Symptoms cannot be Use the customer reported
recreated. symptoms and go to
(Intermittent “Symptom-to-FRU Index” on
problems.) page 34.
2
1
AC Adapter (35W):
2
1
3 ( )
4 ( )
( )
Black
Notes:
1. In the ThinkPad Features Program, the computer
can be set to “Will not suspend even if LCD is
closed.”
2. When the computer is powered with ac power
and is used with one of the following IBM PC
cards, the computer enters standby mode; the
PC card and application program remain active.
3270 Emulation Credit Card Adapter
5250 Emulation Credit Card Adapter
Token-Ring 16/4 Credit Card Adapter
Credit Card Adapter for Ethernet
3. During the following conditions, the computer
cannot enter suspend mode.
While the communication link is running.
When a serial mouse or other pointing
device are selected in the Config menu of
Easy-Setup.
Symptom-to-FRU Index
The Symptom-to-FRU Index lists the symptoms, errors,
and possible causes. (It can be used to help you decide
which FRUs to have available when servicing the
computer.) The most likely cause is listed first.
FRU Codes
If an error is detected by the diagnostic tests, a four-digit
FRU code is displayed. The FRU code indicates two
suspected FRUs. Replace the FRU that is indicated by
the two leftmost digits first, then replace the FRU indicated
by the two rightmost digits. No FRU is assigned to code
00. If only one FRU is suspected, the other FRU code is
filled with zeros. See the referenced page before replacing
the FRU.
Symptom/Error FRU/Action
Continuous beeps. 1. System Board
One beep and a blank, 1. Reseat the LCD
unreadable, or flashing connector. (See
LCD. “1090 LCD Assembly”
on page 55.)
2. LCD Assembly
3. System Board
One beep, and the message 1. Reseat the boot
“Unable to access boot device.
source.” 2. Boot Device
3. System Board
One long, two short beeps 1. System Board
and a blank or unreadable 2. LCD Assembly
LCD.
One long beep followed by 1. Connect the AC
four short beeps each time Adapter or install a
the power switch is fully-charged battery.
operated.
(System cannot power-on
due to low battery voltage.)
One long and one short 1. System Board
beep.
One beep every second. 1. Connect the AC
(System is shutting down Adapter or install a
due to low battery voltage.) fully-charged battery
(allows the system to
completely shutdown
before the battery is
charged).
Two short beeps with error 1. POST error. (See
codes. “Numeric Error Codes”
on page 35.)
Two short beeps with blank 1. System Board
screen.
No Beep Symptoms
Symptom/Error FRU/Action
No beep, power-on indicator 1. Go to “Power
not on, and a blank LCD Systems Checkout”
during POST. on page 29.
2. System Board
3. Power Sources
No beep, power-on indicator 1. System Board
on, and a blank LCD during
POST.
No beep, power-on indicator 1. System Board
on, and a blinking cursor
only during POST.
Other Symptoms
Symptom/Error FRU/Action
PCMCIA slot pin is 1. System Board
damaged.
Intermittent Problems
Intermittent system hang problems can be caused by a
variety of reasons that have nothing to do with a hardware
defect such as: cosmic radiation, electrostatic discharge, or
software errors. FRUs replacement should only be
considered when a recurring problems exists.
Undetermined Problems
You are here because the diagnostic tests did not identify
which adapter or device failed, installed devices are
incorrect, a short circuit is suspected, or the system is
inoperative. Follow the procedures below to isolate the
failing FRU (do not isolate non-defective FRUs).
Verify that the power supply being used at the time of the
failure is operating correctly. (See “Power Systems
Checkout” on page 29.)
1. Power-off the computer.
Green Keyboard is in
Caps Lock mode
Green Keyboard is in
Scroll Lock
mode
Error Log
Diagnostic errors are printed on the printer that is attached
to the parallel port when the error is detected. The error is
also logged in the system memory.
Fn + Description
F1 Reserved
F2 Fuel-gauge display ON/OFF
F3 Standby mode invocation
F4 Suspend mode invocation
F5 Audio volume Down
F6 Audio volume UP
F7 LCD/CRT display switching
F8 LCD normal/reverse switching
F9 Reserved
F10 Reserved
F11 Power management mode switching
(Toggles High power, Medium, Low)
F12 Reserved
Feature Description
Processor 340
– IBM486 SLC 25/50MHz, on
the system board
340CSE
– IBM486 SLC2 25/50MHz, on
the system board
– IBM486 SLC2 33/66MHz, on
the system board
Memory 4MB (on the system board)
(Standard)
Memory (Option) 2MB, 4MB, 8MB, IC DRAM card
(12MB is maximum)
CMOS RAM 128 Bytes
VGA Video 340
– 9.4-inch, 64 gray, level DSTN
LCD monochrome
340CSE
– 9.4-inch, 256 color, DSTN
LCD color
– 10.4-inch, 256 color, DSTN
LCD color
Diskette Drive 0.720MB, 1.44MB (2-mode),
3.5-inch
(for U.S. and European countries)
0.720MB, 1.2MB, 1.44MB
(3-mode), 3.5-inch
(for Japan)
Hard Disk Drive 340
– 125MB, 2.5-inch
340CSE
– 200MB, 2.5-inch
– 360MB, 2.5-inch
PCMCIA One Type-III or Type-II
1
1020 Battery Pack
Note
The IC DRAM card is sensitive to physical shock.
Incorrect handling of the card can damage it.
2 4
When Replacing
Be careful to not break the pins of the indicator card
connector.
Notes:
1. There are two keyboard latches on each side of the
computer frame. Slide the keyboard as shown in step
2 to release the keyboard from those latches; them
remove the keyboard. (Small arrows on the both
sides of the keyboard show the locations of the
latches.)
2. The keyboard has three cables; be careful not to
damage the cables when you open the keyboard and
to remove them.
1
2
2 2 2
1 1 1
When Replacing
Check that the three keyboard cables are clean,
and inserted straight and fully into the
connectors. Slide both ends of each connector
latch at the same time to make sure that each
cable is correctly inserted.
Go to “Keyboard/Auxiliary Input Device Checkout”
on page 27 and test all keys before returning the
computer to the customer.
If the LCD breaks and the fluid from inside the LCD
gets into your eyes or on your hands, immediately
wash the affected areas with water for at least 15
minutes. Seek medical care if any symptoms from the
fluid are present after washing.
340
340CSE
2
2
1
3
3
Use the following table for reference when replacing parts.
When Replacing
Before removing the hard disk drive, have the
user make a backup copy of all information
on the hard disk
Never remove the hard disk drive while the
system is operating or is in suspend mode.
Do not pull the hard disk cable. The cable can
be damaged if it is disconnected without
releasing the latch.
Do not drop or apply any shock or extra force to
the hard disk drive or diskette drive. They are
sensitive to physical shock.
1 4
2
3
5
2
1
1
2
5
4
11 2
10
3
4
9
8
7 5
6
7
6
5
4
3
2
1
3
2
1
12
21 20 19 18 17 16 15 14 13
Indicator Card
.1/ Resume/Suspend Switch
.2/ Power Switch
.3/ System board Interface
1 2 3
3
17 4
16
5
15
7
14
9
13
10
11
12
Keyboards
Arabic 84G6881
Belgium 84G6879
Canadian French 84G6887
Danish 84G6878
Dutch 84G6876
Finnish, Swedish 84G6875
French 84G6872
German (Black) 84G6870
Greek 84G6885
Hebrew 84G6882
Italian 84G6874
Japanese 84G6888
Latin Spanish 84G6886
Norwegian 84G6880
Portuguese 84G6883
Spanish 84G6877
Swiss, French 84G6873
Swiss, German 84G6871
Turkish 84G6884
U.K. English 84G6869
U.S. English 84G6868
Numeric Keypad
Belgian 95F5741
Canadian French 95F5466
Danish 95F5467
Dutch 95F5467
French 95F6313
German 95F6314
Greek 95F5467
Hebrew 95F5741
Icelandic 95F5467
Italian 95F6316
Japanese 79F6401
Norwegian 95F5467
Spanish 95F6315
Swedish/Finnish 95F5468
Swiss/French 95F5711
Swiss/German 95F5715
Turkish 95F5467
U.K. English 95F5741
U.S. English 95F5741
Tools
Tri-Connector Wrap Plug 72X8546
PC Test Card 35G4703
Audio Wrap Cable 66G5180
Screwdriver Kit 95F3598
2 7
3 8
4 9
5 10
Note
For information about how to run diagnostics, error
messages, passwords, and various other tests and
service checks, go to “Related Service Procedures” on
page 94.
001
– Remove all IC DRAM cards from their slots (if installed).
– Power-off the computer, then power it on.
After the cursor moves to the upper right corner of the
screen, press Ctrl+Alt+Insert to start the system
program.
– Press Ctrl+A at the Main Menu.
DID THE ADVANCED DIAGNOSTIC MENU APPEAR?
Yes No
002
Replace the base memory card.
If the problem is not corrected, go to “Undetermined
Problem” on page 93.
003
– Run the memory tests.
Use the RUN TESTS ONE TIME option.
DID THE MEMORY TESTS END WITHOUT AN ERROR?
Yes No
004
Replace the base memory card.
005
006
Replace the IC DRAM card in slot 1.
If the problem is not corrected, replace the system
board.
007
– Install the IC DRAM card into slot 2 and run Automatic
configuration.
(Step 007 continues)
008
Replace the IC DRAM card in slot 2.
If the problem is not corrected, replace the system
board.
009
2 1
2 1
1
( ) 2 3
( )
( )
Password-Override
Connecter
VC VB VG VA
PWRGOOD
Ground
PG
VA3
VB3
VB
VA
VG
IMPORTANT:
1. If you have both an error message and an incorrect
audio response, diagnose the error message first.
2. If you cannot run the advanced diagnostic tests, but
did receive a POST error message, diagnose the
POST error message.
3. If you did not receive an error message, look for a
description of your error symptoms in this index.
4. Check all power supply voltages before you replace
the system board. See “Power Systems Checkout”
on page 71.
5. If an error message is not listed, there is a device
installed that requires an additional diskette or service
manual. Refer to the diskette or service manual for
that device.
Beep Symptoms
Symptom/Error FRU/Action
Continuous beep. System Board
Repeating short beeps. 1. See “1080 Keyboard
Unit” on page 54
before replacing any
FRUs.
2. Keyboard
3. Keyboard Control Card
4. System Board
One long and one short 1. System Board
beep.
One long and two short 1. Video Card
beeps. 2. System Board
One short beep and a 1. LCD
blank, unreadable, illegible, 2. Video Card
or flashing display with no 3. System Board
external display attached. 4. Voltage Converter
One short beep and a 1. Diskette Drive
diskette prompt or a 2. System Board
program load from the hard 3. Diskette Drive Cable
disk or unable to read the
diskette. (Be sure an
external display is not too
close to the diskette drive.)
Two short beeps and a 1. System Board
blank display.
Miscellaneous Symptoms
Symptom/Error FRU/Action
Power-on password is not 1. Check the power-on
reactivated. password switch
position.
Problem occurs only when 1. Port Replicator
port replicator installed.
No beep and a blank or 1. See “Power Systems
unreadable display during Checkout” on
POST. page 71 before
replacing any FRUs.
2. Processor Card
3. System Board
4. Video Card
5. Hard Disk Drive
6. Base Memory Card
7. Any option or device
8. Power source in use
when failure occurs
9. Voltage Converter
10. Speaker
No beep with a blinking 1. System Board
cursor. 2. Processor Card
3. Any Option or Device
No beep with a normal 1. Speaker
display during POST. 2. System Board
3. Keyboard Control Card
4. Voltage Converter
No beep and the system 1. System Board
hangs with CP XX at the 2. Processor Card
right-bottom corner of the
screen.
No beep and the system 1. System Board
hangs after displaying the 2. Processor Card
memory count. 3. Hard Disk Drive
4. Coprocessor
No boot with blank screen. 1. System Board
Extra horizontal or vertical 1. LCD
lines displayed on upper or 2. Video Card
lower half of the LCD. 3. System Board
Check the power supply that was being used at the time of
the failure. (See “Power Systems Checkout” on page 71.)
If the power supply is operating correctly, continue with the
following procedure.
1. Power-off the computer.
2. Remove or disconnect one of the following devices or
adapter. (Do not isolate FRUs that are known to be
good.)
a. Non-IBM devices
b. Modem, PC card, printer, mouse, or other
external devices
c. Battery pack
d. Hard disk drive (removable disk drive)
e. IC DRAM card
f. Any adapter or device
Note: Replacing the hard disk drive, an IC
DRAM card, or any adapter or device,
might cause configuration errors.
3. Power-on the computer.
4. If the problem is not corrected, repeat steps 1 through
3 until you find the failing FRU or until all FRUs have
been removed.
5. If all of the FRUs listed have been removed and the
problem is not corrected, replace the following FRUs:
System board
Processor card
Video card
Viewing the error log: To view the error log, start the
system programs and select More utilities from the Main
Menu, then select Display system error log. For any
error that is displayed, help screens guide you through the
actions to take.
Notes:
1. The ThinkPad 700C Japanese model has an 89-key
keyboard. This keyboard is identified by the
additional keys at the left and right sides of the
spacebar.
2. A 2.0MB capacity diskette is required when testing
the 1.2MB format.
Product Overview
The following table provides a brief overview of the system
features.
Feature Description
Processor (700, 486SLC 25-MHz
700C)
Front View
.1/ Release Lever
.2/ LCD
.3/ Contrast Control
.4/ Brightness Control
.5/ System Status Indicator
.6/ Power-On Light (green)
.7/ External Input Device Connector
.8/ System Power Switch
.9/ Keyboard
.1ð/ Reverse Video Switch
.11/ Hard Disk Drive
.12/ Integrated Pointing Stick
.13/ Battery Pack
.14/ Diskette-Eject Button
.15/ Diskette Drive
.16/ Speaker Volume
.17/ Suspend Switch
(Front side)
(Rear side)
(Front side)
(Rear side)
(Front side)
(Rear side)
.1/ Pointing Stick Connector
.2/ System Board Interface
.3/ Keyboard Connector
.4/ Keyboard Connector
(Front side)
(Rear side)
26 1
25
24
2
23
22 4
21
20
6
19
18 7
8
17
9
10
16 11
12
15
13
14
26 1
25
24
2
23
22
21 5
20
6
19 7
8
18
9
17
10
16 11
12
15
13
14
Tools
Tri-Connector Wrap Plug 72X8546
PC Test Card 35G4703
Audio Wrap Cable 66G5180
Screwdriver Kit 95F3598
1 6
2 7
3 8
4 9
5 10
The LCD for the Model 700C and 720C contains over
921 000 thin film transistors (TFTs). A small number of
missing, discolored or lighted dots (on all the time) is
characteristic of TFT LCD technology. Excessive pixel
problems can cause viewing concerns. The LCD should
be replaced if the number of missing, discolored, or lighted
dots in any background is 21 or more.
Hinges on the color LCD are part of the FRU and are
returned with the FRU.
Symptom Go to
Power failure. (The “Power Systems Checkout” on
power indicator does page 135.
not go on or stay on.)
POST does not “No-Beep Symptoms” on
complete. No beeps page 146.
or error codes are
indicated.
POST beeps, but no “Beep Symptoms” on page 145.
error codes are
displayed.
POST detected an “Numeric Error Codes” on
error and displayed page 142.
numeric error codes.
The diagnostics test “FRU Codes” on page 144.
detected an error and
displayed a FRU
code.
The configuration is “Checking Installed Devices” on
not the same as for page 157.
the installed devices.
Other symptoms “Symptom-to-FRU Index” on
(such as LCD display page 141, and then use the
problems). symptoms tables.
Symptoms cannot be Use the customer-reported
recreated. symptoms and also see
(Intermittent “Intermittent Problems” on
problems.) page 152.
Warning:
Only trained personnel should service the computer.
Drives in the computer that you are servicing might
have been rearranged or the drive startup sequence
might have been altered. Be extremely careful during
write operations such as copying, saving, or
formatting. Data or programs can be destroyed if you
select an incorrect drive.
Memory Checkout
Depending on the amount of additional memory installed
by the customer, the memory size that is available for
customer use appears differently. This is not a hardware
problem. Consult the following table for the available
memory on a system with a 4MB base memory when the
customer installs different sizes of small outline dual inline
memory module (SO-DIMM).
1 2 3 4
If the two systems still will not connect after you have
followed the preceding steps and the remote system is
another computer with a terminal program (for example,
Windows** Terminal** or Procomm**) installed, perform the
following tests:
1. Set up the terminal application on each system to
communicate with the infrared transceiver serial port
at a speed of 115KB per second.
2. Type characters on the ThinkPad 701C/701CS
keyboard and check to see whether or not these
characters appear on the remote system. (Note that
the characters you type will not appear on the
ThinkPad 701C/701CS system.)
3. Type characters on the remote keyboard and check
to see whether or not these characters appear on the
ThinkPad 701C/701CS system.
4. If characters do not appear in either step 2 or 3 and
you are certain that infrared is working correctly on
the remote system, replace the inverter card.
5. If characters do appear, consult the software vendor
to ensure that the customer is using a compatible
software package and that the setup parameters are
correct.
PCMCIA Checkout
For a more thorough test, use one PCMCIA card in each
slot. Perform the following steps to test the PCMCIA**
slots:
1. Power-off the computer, and then power it on again.
2. Press the F1 key any time while the POST memory
count is proceeding. When the memory test is
completed, the Easy-Setup screen appears.
3. Press the left or right arrow key to select Test and
press Enter or position the pointer over the Test icon
and click the left click button once.
4. Press Ctrl+A to enter advanced diagnostics.
5. If you are using PC test cards, select Tool to install
them. Insert the cards when prompted. (For
instructions on installing test cards, see “Running the
Diagnostics” on page 156. For instructions on
inserting the cards, see “Removing PCMCIA Cards”
on page 159.)
Notes:
1. Before replacing the top and bottom system boards,
try reseating the boards. If reseating the boards does
not correct the problem, replace the boards.
2. If possible, install the latest level of BIOS available
before replacing any FRU.
Note:
Symptom/Error FRU/Action
02X, 101, 107 1. Battery.
2. AC Adapter
3. Memory Option.
4. Top System Board.
10X 1. Bottom System
Board.
119 1. Top System Board.
161, 163 1. Set Configuration.
(Press Fn+F1 to enter
the Configuration Utility
and set the time and
date.)
2. Top System Board.
3. Bottom System Board.
162 1. Set Configuration.
(Check the Installed Devices (Press Fn+F1 to enter
list for a missing device.) the Configuration Utility
and set your
configuration.)
2. Any Missing Device.
3. Top System Board.
4. Bottom System Board.
164 1. If a SO-DIMM card
(Memory size error) has been removed,
press Fn+F1 to enter
the Configuration
Utility, and verify the
memory size.
2. Replace the installed
SO-DIMM.
3. Bottom System Board.
184 1. Press Fn+F1 to enter
the Configuration
Utility, and then reset
the Power-on
Password.
195 1. Check if the disk
(The hibernate partition drive is from another
does not match memory computer or if the
size.) memory size has
changed.
2. Go to “Hard Disk
Drive Checkout” on
page 133.
3. Hard Disk Drive
FRU Codes
If an error is detected by the diagnostics tests, a four-digit
FRU code is displayed, along with an error code. The
FRU code indicates two suspected FRUs. Replace the
FRU that is indicated by the two leftmost digits first, and
then replace the FRU indicated by the two rightmost digits.
No FRU is assigned to code 00. If only one FRU is
suspected, the other FRU code is filled with zeros. See
the referenced page before replacing the FRU.
Beep Symptoms
Symptom/Error FRU/Action
Continuous beeps. 1. Top System Board
One beep and a blank, 1. Reseat all LCD
unreadable, or flashing connectors.
LCD. 2. LCD Assembly
3. Bottom System Board
One beep, and the message 1. Boot device
“Unable to access boot 2. System Board
source.”
One long, two short beeps, 1. Bottom System
and a blank or unreadable Board.
LCD. 2. LCD Assembly
No-Beep Symptoms
Symptom/Error FRU/Action
No beep, power-on indicator 1. Go to “Power
not on, and a blank LCD Systems Checkout”
during POST. on page 135.
2. Top System Board.
3. Power sources.
No beep, power-on indicator 1. Top System Board.
on, and a blank LCD during 2. Bottom System Board.
POST.
No beep, power-on indicator 1. Top System Board.
on, and a blinking cursor 2. Bottom System Board.
only during POST.
No beep during POST but 1. Turn the volume up.
system runs correctly. 2. Speaker.
3. Top System Board.
Symptom/Error FRU/Action
No beep, power-on indicator 1. Adjust contrast.
on, and a blank LCD during 2. Top System Board.
POST. 3. Bottom System Board.
LCD backlight not 1. Reseat LCD
working, or connectors.
LCD too dark, or 2. Reseat inverter card.
LCD brightness cannot 3. Inverter Card.
be adjusted. 4. LCD Assembly.
LCD contrast cannot be 1. Reseat LCD
adjusted (ThinkPad 701CS connectors.
only). 2. Top System Board.
3. LCD Assembly.
LCD screen [See important note for
unreadable, or “Disassembling the LCD
Characters missing Assembly” on page 172.]
pels, or 1. Check that the latest
Screen abnormal, or versions of the
Wrong color displayed. drivers are installed.
2. Reseat LCD
connectors.
3. Bottom System Board.
4. LCD Assembly.
LCD has extra horizontal or 1. LCD Assembly.
vertical lines displayed.
Blank LCD, system runs 1. Check display type.
correctly during POST. (Press Fn+F1 to enter
the Configuration
Utility, and then reset
Display type to LCD.)
Symptom/Error FRU/Action
Devices connected to the 1. Check the device
MultiPort II do not work connectors to make
correctly. sure that they are
connected correctly.
2. Check the cables to
make sure they are not
defective or damaged.
3. Go to “MultiPort II
Checkout” on
page 134.
Problems occur when the 1. Verify that the
MultiPort II is connected or MultiPort II is
removed (unlatched). correctly seated and
that the latches are
engaged properly.
2. Go to “MultiPort II
Checkout” on
page 134.
Power problems occur when 1. Remove and then
the MultiPort II is connected reattach the AC
to the computer. adapter to the
computer or the
MultiPort II.
2. MultiPort II.
3. Top System Board.
Symptom/Error FRU/Action
External display does not 1. See “External Display
work correctly. Self-Test” in
“Common Devices
Checkout” section.
Printer problems. 1. Run Printer self-test.
2. Cable.
3. Parallel Port Device.
4. Top System Board.
Serial or parallel port device 1. Device.
problems. 2. Device Cable.
3. Top System Board.
Intermittent Problems
Intermittent system interruptions can be caused by a
variety of reasons that have nothing to do with a hardware
defect, such as electrostatic discharge or software errors.
Consider replacing a FRU only when a recurring problem
exists.
Undetermined Problems
Perform the following procedures to isolate the failing FRU
if the diagnostics tests did not identify which adapter or
device failed, or whether the installed devices are
incorrect, a short circuit is suspected, or the system is
inoperative.
Note: Do not replace a nondefective FRU.
Fn+ Description
(alone) Resumes operation from Suspend mode.
F1 Enters the Configuration Utility.
F2 Turns the battery-gauge icon on and off.
F3 Enters Standby mode.
F4 Enters Suspend mode.
F5 Mutes and unmutes speaker.
F6 Turns the hard disk off.
F7 Cycles through display options (LCD, CRT,
both).
F8 Reverses video display.
F9 Reserved.
F10 Reserved.
F11 Reserved.
F12 Enters Hibernate mode.
Insert Increases contrast.
(This combination key does not provide this
function on ThinkPad 701C as TFT screens
do not require contrast adjustment.)
Delete Decreases contrast.
(This combination key does not provide this
function on ThinkPad 701C as TFT screens
do not require contrast adjustment.)
Home Increases brightness.
End Decreases brightness.
PgUp Increases speaker volume, unmutes
speaker.
PgDn Decreases speaker volume.
Product Overview
The following table provides a brief overview of the system
features.
Feature Description
Processor Intel** 486** DX2 25/50MHz or DX4
25/75MHz, with math coprocessor.
Memory 4MB or 8MB (on the system board).
(Standard)
Memory 4, 8, or 16MB SO-DIMM.
(Optional)
Bus Local bus for hard drive and video
Architecture (with hardware line draw, BITBLT,
(Two Busses) cursor, and sprite support).
ISA bus
BC M2.5, 6 mm Black
BE M2.5, 10 mm Black
BF M1, 3 mm Black
BH M2.5, 8 mm Black
BI M2.5, 5 mm Black
BJ M2, 8 mm Silver
BL M2.5, 6 mm Black
Note:
1. Use a TORX** T1 screwdriver on the BF screw. Torque
to 0.5 in./lb.
2. For the other listed screws, use a TORX T6 screwdriver.
Torque to 2.5 in./lb.
BF
9
6 BC
2
10 BH
4
10
BC 10 BE
10
10 BC BC
7 BK
20
16
17
14
8
15
11 BC
12
13
23
13
24
21
22
19 BG
18
19
BG
9 BF
29
28
BA
BL
25
28 BJ
27
30 32
33
34
31
26 BC
12
10
11 BI 7
9
6
9
5
1 BH BD
10
3
8 3
BD
3
BD
4
BD 3 2
If the LCD breaks and the fluid from inside the LCD
gets into your eyes or on your hands, immediately
wash the affected areas with water for at least 15
minutes. Seek medical care if any symptoms from the
fluid are present after washing.
Important
1 2
7 6 5 4
1 2 3 4 5 6
1 2 3 4
8 1 2
5
6
10 9 8
6 9
2
3
4
5
6
7
8
Notes
1. When you replace the AC adapter with a new
one, use the one for the country you are in even
if the system is from a different country.
2. The warranty for the system unit does not apply
to all options.
Tools
Standard Tri-Connector Wrap Plug 72X8546
PCMCIA (PC Test Card) 35G4680
Standard Audio Wrap Cable 66G5180
Standard Screwdriver Kit 95F3598
TORX T1 Screwdriver 10H4156
TORX T6 Screwdriver 10H4157
Power Cords
U.S., Canada 04H6905
Asia Pacific 04H6906
Latin America 04H6907
Europe 04H6908
Japan 04H6909
Warning:
Use the power cord certified for your country.
Symptom Go to
Power failure. (The power “Power Systems Checkout”
indicator does not go on or on page 207.
stay on.)
POST does not complete. “Symptom-to-FRU Index” on
No beeps/error code are page 216, and then use the
indicated. No Beep Symptoms table.
POST beeps, but no error “Symptom-to-FRU Index” on
codes are displayed. page 216, and then use the
Beep Symptoms table.
POST detected an error and “Symptom-to-FRU Index” on
displayed numeric error page 216, and then use the
codes. Numeric Error Codes table.
The diagnostic test detected “FRU Codes” on page 220.
an error and displayed an
FRU code.
The configuration is not the “Checking the Installed
same as the installed Devices List” on page 230.
devices.
Other symptoms (such as “Symptom-to-FRU Index” on
LCD display problems). page 216, and then use
other miscellaneous
symptoms tables.
Symptoms cannot be Use the customer reported
recreated. (Intermittent symptoms and go to
problems.) “Symptom-to-FRU Index” on
page 216.
TV Tuner Problems See “TV Tuner” on
page 477.
TrackPoint II checkout
If the TrackPoint II will not work, check the configuration in
Easy-Setup by selecting Keyboard from the Config menu.
If the configuration of the TrackPoint II disabled, select
TrackPoint to enable it.
If this does not correct the TrackPoint II problem, continue
with the following.
Do the following:
1. Press and hold the F1 key, then power-on the
computer to go to the Easy-Setup menu.
2. Press Ctrl+P. The following Pen icon appears on the
screen.
Pen
3. Open the LCD all the way to 180 degrees. (Do not
convert it into the tablet-style notebook.)
4. Select the pen icon by moving the cursor on the icon
and clicking it.
5. Without applying any pressure on the screen, hold the
stylus pen so it stands on the screen, then press
Enter.
Note: The pressure on the screen should only be
from the weight of the stylus pen.
6. Restart the system.
2 1
2 1
Notes:
1. If the output voltage from the cigarette lighter socket
of the car is less than 10.5 V dc, the power-on
indicator on the Car-Battery Adapter blinks and a
continuous noise can be heard. The condition of the
car battery should be checked by appropriate service
personal.
2. The Car-Battery Adapter does not support operational
charging.
Red
Black
Black Red
Notes:
For IBM devices not supported by the diagnostic
codes in this manual, see the manual for that
device.
If the LCD is replaced with a new one, see
“Digitizer Adjustment” on page 205 to adjust the
pen-point pressure.
FRU Codes
If an error is detected by the diagnostic tests, a four-digit
FRU code is displayed. The FRU code indicates two
suspected FRUs. Replace the FRU that is indicated by
the two leftmost digits first, then replace the FRU indicated
by the two rightmost digits. No FRU is assigned to code
00. If only one FRU is suspected, the other FRU code is
filled with zeros. See the referenced page before replacing
the FRU.
Beep Symptoms
Symptom/Error FRU/Action
Continuous beeps. System Board
One beep and a blank, 1. Reseat all LCD
unreadable, or flashing connectors.
LCD. 2. LCD Assembly
3. System Board
4. DC/DC Card
One beep, and the message 1. Boot device
“Unable to access boot 2. System Board
source.”
One long, two short beeps 1. System Board
and a blank or unreadable 2. LCD Assembly
LCD.
One long beep followed by Connect the AC Adapter
four short beeps each time or install a fully-charged
the power switch is battery.
operated.
(System cannot power-on
due to low battery voltage.)
One beep every second. Connect the AC Adapter
(System is shutting down or install a fully-charged
due to low battery voltage.) battery (allows system to
complete shutdown
before changing the
battery).
No Beep Symptoms
Symptom/Error FRU/Action
No beep, power-on indicator 1. Go to “Power
not on, and a blank LCD Systems Checkout”
during POST. on page 207.
2. System Board
3. DC/DC Card
4. Power sources
No beep, power-on indicator 1. System Board
on, and a blank LCD during 2. DC/DC Card
POST. 3. Processor Card (370C,
750Ce, 755C, 755Cs)
No beep, power-on indicator 1. System Board
on, and a blinking cursor 2. Processor Card (370C,
only during POST. 750Ce, 755C, and
755Cs)
3. DC/DC Card
No beep during POST but 1. Turn the volume up
system runs correctly. and check the
speaker
2. Speaker
3. Audio Card
4. DC/DC Card
Symptom/Error FRU/Action
No beep, power-on indicator 1. System Board
on, and a blank LCD during 2. DC/DC Card
POST. 3. Processor Card (370C,
750Ce, 755C, and
755Cs)
LCD backlight not 1. Reseat the LCD
working, or connectors.
LCD too dark, or 2. LCD Assembly
3. Interposer Card
LCD brightness cannot
4. DC/DC Card
be adjusted, or
LCD contrast cannot
be adjusted.
LCD screen 1. See the preceding
unreadable, or important note.
Characters missing 2. Reseat the all LCD
pels, or connectors
Screen abnormal, or 3. LCD Assembly
Wrong color displayed. 4. System Board
5. Interposer Card
LCD has extra horizontal or 1. LCD Assembly
vertical lines displayed.
Keyboard/TrackPoint II Related
Symptoms
Symptom/Error FRU/Action
Keyboard (one or more 1. Reseat the three
keys) does not work. keyboard cables.
2. Keyboard
3. Interposer Card
4. System Board
TrackPoint II does not work. 1. Go to “TrackPoint II
checkout” on
page 204.
2. Keyboard
3. Interposer Card
4. System Board
Pointer moves automatically 1. See “TrackPoint II
or does not work correctly. checkout” on
page 204.
Intermittent Problems
Intermittent system hang problems can be caused by a
variety of reasons that have nothing to do with a hardware
defect such as: cosmic radiation, electrostatic discharge, or
software errors. FRUs replacement should only be
considered when a recurring problems exits.
Verify that the power supply being used at the time of the
failure is operating correctly. (See “Power Systems
Checkout” on page 207.)
1. Power-off the computer.
2. Check the cables, wires, and connectors for short
circuits and open circuits. Visually check them for
damage. If any problems are found, replace the
FRU.
3. Remove or disconnect all of the following devices.
a. Non-IBM devices
b. Devices attached to the expansion bus
connector
c. Printer, mouse, and other external devices
d. Battery pack
e. Hard disk drive
f. Diskette drive or the device attached to the
diskette drive connector
g. IC DRAM card or DIMM card
h. PC cards
Note: Remember that removing the hard disk
drive, an IC DRAM card, or any adapter or
device, might cause configuration errors. Ignore
error code 174.
4. Power-on the computer.
5. Determine if the problem has changed.
6. If the problem does not occur again, reconnect the
removed devices one at a time until you find the
failing FRU.
7. If the problem remains, replace the following FRUs
one at a time. Do not replace a non-defective FRU.
DC/DC card
Audio card
Interposer card
LCD assembly
System board
Processor card (370C, 750Ce, 755C, and
755Cs)
Status Indicators
The system status indicators show the current computer
status in different colors (green, yellow, and orange).
Error Log
Diagnostic errors are printed on the printer that is attached
to the parallel port when the error is detected. The error is
also logged in the system memory.
Password Combinations
The password relationship is:
Fn Key Combinations
The following table shows the Fn key and function key
combinations and their corresponding functions.
Fn + Description
F1 Reserved
F2 Fuel-gauge display ON/OFF
F3 Standby mode invocation
F4 Suspend mode invocation
F5 Audio volume Down
F6 Audio volume UP
F7 LCD/CRT display switching
F8 LCD normal/reverse switching
F9 Reserved
F10 Reserved
F11 Power management mode switching
(Toggles High power, Intelligent, Economy)
F12 Hibernation invocation
Model 750x
Feature Description
Processor 750x
– 486SL 33MHz, solder-mounted
on the system board
750Ce
– SL Enhanced 486DX2 50MHz
on the processor card
Bus AT Bus
Architecture VESA Local Bus for video subsystem
(750Ce)
Memory 4MB (on the system board)
(Standard)
Memory 2, 4, 8, 16MB, IC DRAM card (max.
(Maximum) 20 MB
CMOS RAM 750x
– 256 Bytes
750Ce
– 128 Bytes
1015 Foot
To replace the foot:
Align the foot in the open position with one pivot in its
hinge in the base cover
Press the other pivot point into position with your
thumb or finger
Notes:
1. Be careful that the computer does not fall backward
when the battery pack is removed.
2. Check that the keyboard latch springs are in place.
Warning:
1. Check that the backup and standby batteries are
seated correctly to prevent damage to the diskette
drive.
2. Do not put any pressure on the diskette drive
cover. Remove the diskette drive exactly as shown
in the figure.
3. Make sure that a diskette is not installed in the
drive. Removing the drive with a diskette installed
causes bending or damaging the eject button.
Warning:
1. Do not apply any extra force to the hard disk
drive when removing it. Remove the hard disk drive
exactly as shown in the figure.
2. Do not drop or apply any shock to the hard disk
drive. The hard disk drive is sensitive to physical
shock. Incorrect handling can damage it or cause
permanent loss of data. Before removing the hard
disk drive, have the user make a backup copy of all
information on the hard disk. Never remove the hard
disk drive while the system is operating or is in
suspend mode.
After replacing the hard disk drive, latch the removal strap
into the correct position.
2 2
LCD Connector
355, 360
355Cs, 360Cs
Notes:
1. For Model 360x, use steps .9/ through .12/ to
remove the bezel.
2. When the audio card is installed in Model 360x,
modem card means audio card in the following step.
or
For the audio card:
Notes:
1. Gently lift the audio card in step .7/ to avoid
damaging the speaker cable.
2. Do not pull the speaker cable.8/ before the audio
card is removed.7/.
Note: When you reinstall the upper shield, make sure the
LCD ground-terminal is located correctly as shown
in the circle.
Notes:
1. Verify that the spacer .1d/ is in the correct position.
2. .2/ is a shield for radio frequency interference.
Notes:
1. When replacing the DC/DC card, put the spacer.5/
on the screw hole.
2. DC-in holder .A/ and spacer .5/ are supplied as
miscellaneous parts.
Important
The EEPROM on the system board contains the vital
product data (VPD), that is, system unit serial number,
system board serial number, and other computer
unique data. When the system board is replaced, the
system unit serial number must also be restored. Use
the Set system identification utility on the
maintenance diskette to restore the number.
2015 Foot
To replace the foot:
Align the foot in the open position with one pivot in its
hinge in the base cover
Press the other pivot point into position with your
thumb or finger
Notes:
1. Be careful that the computer does not fall backward
when the battery pack is removed.
2. When replacing the battery pack, check that the
storage switch of the new battery is set to the on (|)
position. Do not operate the storage switch of a
battery that has been used and is going to be
re-used.
3. Check that the keyboard latch springs are in place.
Warning:
1. Check that the backup battery and standby
battery are seated correctly to prevent damage to
the diskette drive when replacing the diskette drive.
2. Do not put any pressure on the diskette drive
cover. Remove the diskette drive exactly as shown
in the figure.
3. Make sure that a diskette is not installed in the
drive. Removing the drive with a diskette installed
causes bending or damaging the eject button.
Warning:
1. Do not apply any extra force to the hard disk
drive when removing it. Remove the hard disk drive
exactly as shown in the figure.
2. Do not drop or apply any shock to the hard disk
drive. The hard disk drive is sensitive to physical
shock. Incorrect handling can cause damage it, and
cause permanent loss of data on the hard disk.
Before removing the hard disk drive, have the user
make a backup copy of all the information on the hard
disk. Never remove the hard disk drive while the
system is operating or is in suspend mode.
After replacing the hard disk drive, latch the removal strap
into the correct position.
Press both locks at the same time and remove the DIMM.
While holding the strap .1/, pull the DIMM adapter toward
the front .2/ to remove it.
1
2
2
1
The status indicator has three latches on its rear and two
in its front. in step .3/, do as follows:
1. Release the rear latches with pushing each one with
your thumb, as shown in the artwork. (The broken
circles in the figure show the locations of the three
latches.)
2. Release the front latches.
3. Lift the indicator.
2 2
LCD Connector
755C
750P
This figure shows the LCD that
does not have a contrast control.
(P/N 84G4337)
Important:
1. Carefully remove any metal particles that might have
flaked off.
2. The shaded part in the figure is attached to the
speaker shield assembly with light adhesive. This
FRU is a separate FRU from the speaker shield
assembly.
.1/ Remove the screws.
.2/ Gently raise the speaker shield assembly to avoid
damaging the speaker cable and make sure that
the shield assembly does not hook the three flexible
cables of the keyboard.
.3/ Disconnect the speaker connector.
Notes:
1. .1d/ shows the correct position of the spacer.
2. .2/ is a shield for radio frequency interference.
Notes:
1. When replacing the DC/DC card, put the spacer.5/
on the screw hole.
2. DC-in holder .A/ and spacer .5/ are supplied as
miscellaneous parts.
Model 750x
Important
The EEPROM on the system board contains the vital
product data (VPD), that is, system unit serial number,
system board serial number, and other computer
unique data. When the system board is replaced, the
system unit serial number must also be restored. Use
the Set system identification utility on the
maintenance diskette to restore the number.
Notes:
1. When handling the PCMCIA slot assembly, be careful
not to disassemble any part of it. The slot assembly
is not solidly fixed when it is removed from the
system board or the FRU.
In step .4/, gently pull up the bottom of the center
area of the connector board edge with your fingers.
2. The screw stand located each corner of the PCMCIA
slot, is easy to remove. Make sure that the screw
stand is located when replace the slot. Do not
replace the slot without the screw stand.
Notes:
2
34
33
3
32
4
5
6
31 6a
30
6b
29a
29 6c
7
28 8
27
9
26 10
11
25 12
24
23a
23 13
14
22
21a
21
20 15
16
19 18 17a 17
2
36
35
3
34
4
33 5
32
6
31
30
6a
29
7
28 8
27
9
26 10
11
11a
25 12
24
23a
23 13
14
22
21
20 15
16
19 18 17a 17
Keyboard
Arabic 66G0163
Belgian 66G0161
Canadian French 66G0169
Danish 66G0160
Dutch 66G0158
Finnish 66G0157
French 66G0154
German (Black) 66G6402
Greek 66G0167
Hebrew 66G0164
Italian 66G0156
Japanese 66G0171
Latin American 66G0168
Norwegian 66G0162
Portuguese 66G0165
Spanish 66G0159
Swedish 66G0157
Swiss/French 66G0155
Swiss/German 66G0153
Turkish 66G0166
U.K. English 66G0151
U.S. English 66G0150
Russian 85G7443
2
31
30
3
29
4
28a 5
28
27
26
9
25 10
11
11 a
24 12
23
22 13
14
21
20 15
16
19 18 17a 17
Keyboard
Arabic 66G0163
Belgian 66G0161
Canadian French 66G0169
Danish 66G0160
Dutch 66G0158
Finnish 66G0157
French 66G0154
German (Black) 66G6402
German (Gray) 66G0152
Greek 66G0167
Hebrew 66G0164
Icelandic 66G0170
Italian 66G0156
Japanese 66G0171
Latin American 66G0168
Norwegian 66G0162
Portuguese 66G0165
Spanish 66G0159
Swedish 66G0157
Swiss/French 66G0155
Swiss/German 66G0153
Turkish 66G0166
U.K. English 66G0151
U.S. English 66G0150
2
34
33
3
32
4
31 5
30
6
29
6a
28 8
27
9
26 10
11
11a
25 12
24
23a
23 13
14
22
21a
21
20 15
16
19 18 17a 17
Keyboard
Arabic 66G0163
Belgian 66G0161
Canadian French 66G0169
Danish 66G0160
Dutch 66G0158
Finnish 66G0157
French 66G0154
German (Black) 66G6402
Greek 66G0167
Hebrew 66G0164
Italian 66G0156
Japanese 66G0171
Latin American 66G0168
Norwegian 66G0162
Portuguese 66G0165
Spanish 66G0159
Swedish 66G0157
Swiss/French 66G0155
Swiss/German 66G0153
Turkish 66G0166
U.K. English 66G0151
U.S. English 66G0150
Options
Notes:
1. When you replace the AC adapter or the Quick
Charger with a new one, use the one for the country
you are in even if the system is from different country.
2. The warranty for the system unit is not applied to all
options.
Audio Cable 66G5180
Car Battery Adapter 49G1148
(48G9203 label sealed)
Car Battery Adapter 84G4359
(66G9984 label sealed)
Diskette Drive Attachment Unit 66G5069
IC DRAM CARD 2MB 07G1414
IC DRAM CARD 4MB 07G1415
IC DRAM CARD 8MB 07G1416
IC DRAM CARD 16MB 66G0094
Microphone 66G7871
PS/2 Miniature Mouse 95F5723
Port Replicator 66G3575
Port Replicator with PCMCIA 66G3574
Quick Charger (3-pin) 66G2815
For Japan (2-pin) 66G2816
Model 370C
Audio Card 66G5037
Basic IC DRAM CARD (no parity)
8MB 84G5725
4MB 84G5724
16MB 84G5726
Diskette Drive (4-mode) 66G5060
Supported in U.S. only.
Models 750x
AC Adapter (35 W, 3-pin) 85G1952
For Japan (2-pin) 85G6669
AC Adapter (40 W, 3-pin, U.S. only) 84G4320
AC Adapter (40 W, 3-pin) 49G2196
For Japan (2-pin) 49G2197
Accessories
Keyboard/Mouse Cable 54G0444
Tools
Tri-Connector Wrap Plug 72X8546
PC Test Card 35G4703
Screwdriver Kit 95F3598
ThinkPad 750Ce 82G3891
Hardware Maintenance Diskette
(This diskette is common for
all models of ThinkPad.)
1 6
2 7
3 8
4 9
5 10
Symptom Go to
Power failure. (The power “Power Systems Checkout”
indicator does not go on or on page 322.
stay on.)
POST does not complete. “Symptom-to-FRU Index” on
No beeps or error codes are page 331, and then use the
indicated. No Beep Symptoms table.
POST beeps, but no error “Symptom-to-FRU Index” on
codes are displayed. page 331, and then use the
Beep Symptoms table.
POST detected an error and “Symptom-to-FRU Index” on
displayed numeric error page 331, and then use the
codes. Numeric Error Codes table.
The diagnostic test detected “FRU Codes” on page 334.
an error and displayed an
FRU code.
The configuration is not the “Checking the Installed
same as the installed Devices List” on page 346.
devices.
Other symptoms (such as “Symptom-to-FRU Index” on
LCD display problems). page 331, and then use the
other symptom table. table.
Symptoms cannot be Use the customer reported
recreated. (Intermittent symptoms and go to
problems.) “Symptom-to-FRU Index” on
page 331.
Memory Checkout
One of two types of memory cards can be used, IC DRAM
card or DIMM card. See the following table for the total
memory size available when they are installed.
2 1
AC Adapter (40W)
AC Adapter (35W)
Storage Switch
(T)
2 1
FRU Codes
If an error is detected by the diagnostic tests, a four-digit
FRU code is displayed. The FRU code indicates two
suspected FRUs. Replace the FRU that is indicated by
the two leftmost digits first, then replace the FRU indicated
by the two rightmost digits. No FRU is assigned to code
00. If only one FRU is suspected, the other FRU code is
filled with zeros. See the referenced page before replacing
the FRU.
Beep Symptoms
Symptom/Error FRU/Action
Continuous beeps. System Board
One beep and a blank, 1. Reseat all LCD
unreadable, or flashing connectors.
LCD. 2. LCD Assembly
3. Video Card
4. System Board
5. DC/DC Card
One beep, and the message 1. Boot device
“Unable to access boot 2. System Board
source.”
One long, two short beeps 1. System Board
and a blank or unreadable 2. Video Card
LCD. 3. LCD Assembly
One long beep followed by Connect the AC Adapter
four short beeps each time or install a fully-charged
the power switch is battery.
operated.
(System cannot power-on
due to low battery voltage.)
One beep every second. Connect the AC Adapter
(System is shutting down or install a fully-charged
due to low battery voltage.) battery (allows system to
complete shutdown
before changing the
battery).
Two short beeps with error POST error. See
codes. “Numeric Error Codes” on
page 331.
No Beep Symptoms
Symptom/Error FRU/Action
No beep, power-on indicator 1. Go to “Power
not on, and a blank LCD Systems Checkout”
during POST. on page 322.
2. System Board
3. DC/DC Card
4. Power sources
No beep, power-on indicator 1. System Board
on, and a blank LCD during 2. DC/DC Card
POST. 3. Processor Card
No beep, power-on indicator 1. System Board
on, and a blinking cursor 2. Processor Card
only during POST. 3. DC/DC Card
No beep during POST but 1. Turn the volume up
system runs correctly. and check the
speaker
2. Speaker
3. DSP Card
4. DC/DC Card
Symptom/Error FRU/Action
No beep, power-on indicator 1. System Board
on, and a blank LCD during 2. DC/DC Card
POST. 3. Video Card
4. Processor Card
Other Symptoms
Symptom/Error FRU/Action
Errors occur only when Port See “Port Replicator
Replicator is used. Checkout” in “Common
Devices Checkout”
section.
PCMCIA slot pin is PCMCIA Slots Assembly
damaged.
Intermittent Problems
Intermittent system hang problems can be caused by a
variety of reasons that have nothing to do with a hardware
defect such as: cosmic radiation, electrostatic discharge, or
software errors. FRUs replacement should only be
considered when a recurring problems exits.
Verify that the power supply being used at the time of the
failure is operating correctly. (See “Power Systems
Checkout” on page 322.)
1. Power-off the computer.
2. Check the cables, wires, and connectors for short
circuits and open circuits. Visually check them for
damage. If any problems are found, replace the
FRU.
3. Remove or disconnect all of the following devices.
a. Non-IBM devices
b. Devices attached to the expansion bus
connector
c. Printer, mouse, and other external devices
d. Battery pack
e. Hard disk drive
f. Diskette drive or the device attached to the
diskette drive connector
g. IC DRAM card or DIMM card
h. PC Cards
Note: Remember that removing the hard disk
drive, an IC DRAM card, or any adapter or
device, might cause configuration errors. Ignore
error code 174.
4. Power-on the computer.
5. Determine if the problem has changed.
6. If the problem does not occur again, reconnect the
removed devices one at a time until you find the
failing FRU.
7. If the problem remains, replace the following FRUs
one at a time. Do not replace a non-defective FRU.
DC/DC card
Interposer card
LCD assembly
System board
Processor card
Status Indicators
The system status indicators show the current computer
status in different colors (green, yellow, and orange).
Reset Pushbutton
The reset pushbutton resets the system and forces the
power to be powered-off . Use this pushbutton when the
power is not completely off or the system is hung. See
“Rear View” on page 382 for the location of the
pushbutton.
Fn + Description
F1 Reserved
F2 Fuel-gauge display ON/OFF
F3 Standby mode invocation
F4 Suspend mode invocation
F5 Reserved
F6 Reserved
F7 LCD/CRT display switching
F8 Reserved
F9 Reserved
F10 Reserved
F11 Power management mode
switching
(Toggles High power,
Intelligent, Economy)
F12 Hibernation invocation
Feature Description
Processor Intel 486DX4 100/33 MHz
Bus Architecture AT Bus
VESA Local Bus for video
subsystem
Memory 8MB (on the system board)
(Standard)
Memory (Option) 2, 4, 8, 16MB, Basic IC DRAM
card (max. 16 MB)
4, 8, 16MB, DIMM card (max. 40
MB)
DIMM card adapter
CMOS RAM 128 Bytes
VGA Video 10.4-inch, 64K color, TFT LCD color
Diskette Drive 0.720, 1.2, 1.44, 2.88MB
(Removable) (4-mode), 3.5-inch
0.720, 1.44, (2-mode), 3.5-inch
Hard Disk Drive 340MB, 2.5-inch
(Removable) 540MB, 2.5-inch
810MB, 2.5-inch
Super Video Video accelerator
Card Video capture/overlay
Video composite In/Out
CD-ROM 5-inch
Double speed
IDE interface
DSP Card Microphone jack
Headphone jack
Modem port
IR Two infra-red ports
PCMCIA One Type-III or two Type-II
2015 Foot
To replace the foot:
Align the foot in the open position with one pivot in its
hinge in the base cover
Press the other pivot point into position with your
thumb or finger
Notes:
1. Be careful that the computer does not fall backward
when the battery pack is removed.
2. When replacing the battery pack, check that the
storage switch of the new battery is set to the on (|)
position. Do not operate the storage switch of a
battery that has been used and is going to be
re-used.
3. Check that the keyboard latch springs are in place.
Press both locks at the same time and remove the DIMM.
While holding the strap .A/, pull the DIMM adapter toward
the front to remove it.
Loosen the three screws .2/ and .3/, and push .4/ to
release the five top cover latches at the rear side of the
system unit.
Notes:
1. When replacing the keyboard, check that the three
cables are clean, and inserted straight and fully into
the connectors. Slide both ends of each latch at the
same time to make sure that each cable is correctly
inserted. Go to “Keyboard/Auxiliary Input Device
Checkout” on page 320 and test all keys before
returning the computer to the customer.
2. When replacing the top cover, insert the four latches
at the rear side of the cover into the foot guide of the
the LCD; push the right, left, and front sides to snap it
into place.
2 2
Do .4/ and .5/ after step .3/ to remove the rear IR.
Notes:
1. Before removing and replacing the system board,
make sure that the PCMCIA cards are removed and
the eject levers are not sticking out.
2. When replacing the system board assembly, align the
power-key slide hub with the power-switch actuator by
moving the power-key in the direction of the arrow.
See the large circle in the figure. Before tightening
any screws, check that the power-switch operates
correctly.
3. Do not pull the PCMCIA slot assembly while removing
the system board.
Notes:
1. When handling the PCMCIA slot assembly, be careful
not to disassemble any part of it. The slot assembly
is not solidly fixed when it is removed from the
system board or the FRU.
In step .3/, gently pull up the bottom of the center
area of the connector board edge with your fingers.
2. The screw stand at each corner of the PCMCIA slot is
Note: Do not touch the film .2/ on the rear cover while
the cover is removed from the LCD.
2
Front View
.1/ LCD
.2/ Built-in Microphone
.3/ Brightness Control
.4/ Status Indicator
See “Status Indicators” on page 344.
.5/ External Input Device Connector
.6/ Video-In Port
.7/ Video-Out Port
.8/ PCMCIA Slot
.9/ Keyboard
.1ð/ LCD and Keyboard Latch
.11/ Click Button
.12/ CD-ROM Drive
.13/ Front Infrared Port
.14/ Fn Key
.15/ TrackPoint III
.16/ Volume Knob
.17/ Built-in Speaker
3 1a
4
2
45
3
4
5
44
43 6
7
8
42 9
41 10
40
11
39 12
38 13
37 14
36
15
35 16
34
33 17
32 18
31
30 19
29
28 20
27 21
22
23
24
26
25
DAA Assembly
Austria 59G1041
Australia 59G1040
Belgium 43G3414
Denmark 59G1042
Finland 59G1043
France 4525652
Germany 59G1056
Korea 66X2096
Malaysia 59G1066
Netherlands 43G3409
Norway 59G1044
New Zealand 43G3411
PRC/Hong Kong 54F0693
Singapore 66X2096
Sweden 54F0717
Switzerland 59G1057
Taiwan 59G1067
Thailand 59G1064
U.K. 59G1045
Options
Notes:
1. When you replace the AC Adapter or the Quick
Charger with a new one, use the one for the country
you are in even if the system is from different country.
2. The warranty for the system unit does not apply to all
options.
AC Adapter (40W) 49G2196
For Japan 49G2197
AC Adapter (100 - 125 V ac, 40W) 84G4320
For U.S. only.
Audio Cable 66G5180
Battery Pack (Li-ion, for 755CDV) 85G8554
Car-Battery Adapter 49G1148
Small Car-Battery Adapter 84G4359
Diskette Drive Attachment Unit 66G5069
IC DRAM CARD 2MB 07G1414
IC DRAM CARD 4MB 07G1415
IC DRAM CARD 8MB 07G1416
IC DRAM CARD 16MB 66G0094
Microphone 66G7871
PS/2 Miniature Mouse 95F5723
Port Replicator 66G3575
Port Replicator with PCMCIA 66G3574
Travel Quick Charger (3-pin) 85G1530
Quick Charger Cable 85G1531
DIMM 4MB 84G4323
DIMM 8MB 84G6545
DIMM 16MB 84G4324
DIMM Adapter Card 84G4322
Headset 85G1529
Black Keypad
French 84G6286
German 84G6280
Italian 84G6292
Swedish 84G6304
Norway 84G6310
U.K. English 84G6298
U.S. English 84G2530
Black Keyboard
French 84G6285
German 84G6279
Italian 84G6291
Swedish 84G6303
Norway 84G6309
U.K. English 84G6297
U.S. English 84G2529
Tools
Tri-Connector Wrap Plug 72X8546
PC Test Card 35G4703
Audio Wrap Cable 66G5180
Screwdriver Kit 95F3598
ThinkPad 750Ce 82G3891
Hardware Maintenance Diskette
(This diskette is common to
all ThinkPad models.)
1 6
2 7
3 8
4 9
5 10
Symptom Go to
Power failure. (The power “Power Systems Checkout”
indicator does not go on or on page 398.
stay on.)
POST does not complete. “Symptom-to-FRU Index” on
No beeps or error codes are page 408, and then use the
indicated. No Beep Symptoms table.
POST beeps, but no error “Symptom-to-FRU Index” on
codes are displayed. page 408, and then use the
Beep Symptoms table.
POST detected an error and “Symptom-to-FRU Index” on
displayed numeric error page 408, and then use the
codes. Numeric Error Codes table.
The diagnostic test detected “FRU Codes” on page 411.
an error and displayed an
FRU code.
The configuration is not the “Checking the Installed
same as the installed Devices List” on page 422.
devices.
Other symptoms (such as “Symptom-to-FRU Index” on
LCD display problems). page 408, and then use the
other symptoms table.
Symptoms cannot be Use the customer reported
recreated (intermittent symptoms and go to
problems). “Symptom-to-FRU Index” on
page 408.
Memory Checkout
One of two types of memory cards can be used, IC DRAM
card or DIMM card. See the following table for the total
memory size available when they are installed.
AC adapter (35W)
Storage Switch
(T)
(T)
Note: Signal lines, not used in these steps, are used for
communication between the system and the battery. The
storage switch is used to control the power to the internal
microprocessor of the battery. The storage switch should
be set to off (0) only when the battery is going to be kept
in storage for more than two months.
3. If the voltage is less than +8.0 V dc, the battery pack
has been discharged or is defective. Recharge the
battery. If the recharging does not work, go to Step 5
to check the charging circuit.
If the voltage is still less than +8.0 V dc after the
recharging, replace the battery.
4. If the voltage is more than +8.0 V dc, measure the
resistance between battery terminals 3 and 4. The
resistance must be 4 to 30 K ohm.
If the resistance is not correct, replace the battery
pack.
If the resistance is correct, replace the DC/DC card.
5. To check the charging circuit, do the following.
Note: Be careful not to cause a short circuit. Plug in
the AC Adapter with the battery pack removed, then
power-on the computer.
6. Measure the charging voltage between DC/DC
terminals 1 (+) and 4 (−).
7. If the voltage is less then +9.0 V dc, replace the
DC/DC card. If the voltage is more than +9.0 V dc,
2 1
Notes:
1. If the output voltage from the cigarette lighter socket
of the car is less than 10.5 V dc, the power-on
indicator on the Car-Battery Adapter blinks and a
continuous noise can be heard. The condition of the
car battery should be checked by appropriate service
personal.
2. The Car-Battery Adapter does not support operational
charging.
FRU Codes
If an error is detected by the diagnostic tests, a four-digit
FRU code is displayed. The FRU code indicates two
suspected FRUs. Replace the FRU that is indicated by
the two leftmost digits first, then replace the FRU indicated
by the two rightmost digits. No FRU is assigned to code
00. If only one FRU is suspected, the other FRU code is
filled with zeros. See the referenced page before replacing
the FRU.
Beep Symptoms
Symptom/Error FRU/Action
Continuous beeps. System Board
One beep and a blank, 1. Reseat all LCD
unreadable, or flashing connectors.
LCD. 2. LCD Assembly
3. System Board
4. DC/DC Card
One beep, and the message 1. Boot device
“Unable to access boot 2. System Board
source.”
One long, two short beeps 1. System Board
and a blank or unreadable 2. LCD Assembly
LCD.
One long beep followed by Connect the AC Adapter
four short beeps each time or install a fully-charged
the power switch is battery.
operated.
(System cannot power-on
due to low battery voltage.)
One beep every second. Connect the AC Adapter
(System is shutting down or install a fully-charged
due to low battery voltage.) battery (allows system to
complete shutdown
before changing the
battery).
Two short beeps with error POST error. See
codes. “Numeric Error Codes” on
page 408.
Two short beeps with blank System Board
screen.
Symptom/Error FRU/Action
No beep, power-on indicator 1. System Board
on, and a blank LCD during 2. DC/DC Card
POST. 3. Processor Card
LCD backlight not 1. Reseat the LCD
working, or connectors.
LCD too dark, or 2. LCD Assembly
3. Interposer Card
LCD brightness cannot
4. DC/DC Card
be adjusted, or
LCD contrast cannot
be adjusted.
Other Symptoms
Symptom/Error FRU/Action
Errors occur only when Port See “Port Replicator
Replicator is used. Checkout” in “Common
Devices Checkout”
section.
PCMCIA slot pin is PCMCIA Slots Assembly
damaged.
Intermittent Problems
Intermittent system hang problems can be caused by a
variety of reasons that have nothing to do with a hardware
defect such as: cosmic radiation, electrostatic discharge, or
software errors. FRUs replacement should only be
considered when a recurring problems exits.
Undetermined Problems
You are here because the diagnostic tests did not identify
which adapter or device failed, installed devices are
incorrect, a short circuit is suspected, or the system is
inoperative. Follow the procedures below to isolate the
failing FRU (do not isolate non-defective FRUs).
Verify that the power supply being used at the time of the
failure is operating correctly. (See “Power Systems
Checkout” on page 398.)
1. Power-off the computer.
2. Check the cables, wires, and connectors for short
circuits and open circuits. Visually check them for
damage. If any problems are found, replace the
FRU.
3. Remove or disconnect all of the following devices.
a. Non-IBM devices
b. Devices attached to the expansion bus
connector
c. Printer, mouse, and other external devices
d. Battery pack
e. Hard disk drive
f. Diskette drive or the device attached to the
diskette drive connector
g. IC DRAM card or DIMM card
h. PC Cards
Note: Remember that removing the hard disk
drive, an IC DRAM card, or any adapter or
device, might cause configuration errors. Ignore
error code 174.
4. Power-on the computer.
5. Determine if the problem has changed.
6. If the problem does not occur again, reconnect the
removed devices one at a time until you find the
failing FRU.
7. If the problem remains, replace the following FRUs
one at a time. Do not replace a non-defective FRU.
DC/DC card
Interposer card
LCD assembly
System board
Processor card
Status Indicators
The system status indicators show the current computer
status in different colors (green, yellow, and orange).
Error Log
Diagnostic errors are printed on the printer that is attached
to the parallel port when the error is detected. The error is
also logged in the system memory.
Reset Pushbutton
The reset pushbutton resets the system and forces the
power to be powered-off . Use this pushbutton when the
power is not completely off or the system is hung. See
“Rear View” on page 459 for the location of the
pushbutton.
Password Combinations
The password relationship is:
Fn Key Combinations
The following table shows the Fn key and function key
combinations and their corresponding functions.
Fn + Description
F1 Reserved
F2 Fuel-gauge display ON/OFF
F3 Standby mode invocation
F4 Suspend mode invocation
F5 Audio volume Down
F6 Audio volume UP
F7 LCD/CRT display switching
F8 Reserved
F9 Reserved
F10 Reserved
F11 Power management mode
switching
(Toggles High power,
Intelligent, Economy)
F12 Hibernation invocation
Product Overview
The following table shows an overview of the system
features.
Feature Description
Processor 755CE, 755CSE, 755CV
– Intel DX4 100/33 MHz
755CX
– P54C-75 MHz w/ L2 cache
Bus AT Bus
Architecture VESA Local Bus for video subsystem
Memory 8MB (on the system board)
(Standard)
Memory 2, 4, 8, 16MB, Basic IC DRAM card
(Option) (max. 16 MB)
4, 16MB, DIMM card (max. 32 MB)
DIMM card adapter
CMOS RAM 128 Bytes
VGA Video 755CE, 755CV
– 10.4-inch, 65 536 colors, TFT
color LCD
755CSE
– 10.4-inch, 256 colors, STN color
LCD
755CX
– 10.4-inch, 65 536 colors, VGA
TFT color LCD (640 by 480
resolution)
– 10.4-inch, 65 536 colors, SVGA
TFT color LCD (800 by 600
resolution)
Diskette Drive 0.720, 1.2, 1.44, 2.88MB (4-mode),
(Removable) 3.5-inch
0.720, 1.44, (2-mode), 3.5-inch
Hard Disk 340MB, 2.5-inch
Drive 540MB, 2.5-inch
(Removable) 810MB, 2.5-inch
DSP Card Microphone jack
Headphone jack
Modem port
1015 Foot
To replace the foot:
Align the foot in the open position with one pivot in its
hinge in the base cover
Press the other pivot point into position with your
thumb or finger
Notes:
1. Be careful that the computer does not fall backward
when the battery pack is removed.
2. When replacing the battery pack, check that the
storage switch of the new battery is set to the on (|)
position. Do not operate the storage switch of a
battery that has been used and is going to be
re-used.
3. Check that the keyboard latch springs are in place.
Notes:
1. Do not drop or apply any shock to the hard disk
drive. The hard disk drive is sensitive to physical
shock. Incorrect handling can cause damage it, and
cause permanent loss of data on the hard disk.
Before removing the hard disk drive, have the user
make a backup copy of all the information on the hard
disk. Never remove the hard disk drive while the
system is operating or is in suspend mode.
2. Remove the hard disk drive exactly as shown in the
figure. Do not apply any extra force to the hard disk
drive when removing it.
Press both locks at the same time and remove the DIMM.
While holding the strap .A/, pull the DIMM adapter toward
the front to remove it.
Loosen the three screws .2/, and push .3/ to release the
four top cover latches at the rear side of the system unit.
Notes:
1. When replacing the keyboard, check that the three
cables are clean, and inserted straight and fully into
the connectors. Slide both ends of each latch at the
same time to make sure that each cable is correctly
inserted. Go to “Keyboard/Auxiliary Input Device
Checkout” on page 396 and test all keys before
returning the computer to the customer.
2. When replacing the top cover, insert the four latches
at the rear side of the cover into the foot guide of the
LCD; push the right, left, and front sides to snap it
into place.
2 2
Where:
.A/ is the IR Cable.
.B/ is the Standby Battery Cable.
.C/ is the IR Lens.
Note: When replacing the battery, make sure the battery
is seated correctly. Make sure the IR Lens .2/ is in the
correct position by sliding it end to end.
Where:
.A/ is the Rear IR.
.B/ is the Interposer Card.
Notice
The EEPROM on the system board contains the vital
product data (VPD), that is, system unit serial number,
system board serial number, and other computer
unique data. When the system board is replaced, the
system unit serial number must also be restored. Use
the Set system identification utility on the
maintenance diskette to restore the number.
Notes:
1. Before removing and replacing the system board,
make sure that the PCMCIA cards are removed and
the eject levers are not sticking out.
2. Do not pull the PCMCIA slot assembly while removing
the system board.
Notes:
1. When handling the PCMCIA slot assembly, be careful
not to disassemble any part of it. The slot assembly
is not solidly fixed when it is removed from the
system board or the FRU.
In step .3/, gently pull up the bottom of the center
area of the connector board edge with your fingers.
2. The screw stand at each corner of the PCMCIA slot is
Note: To clean the LCD, gently wipe the LCD with a dry,
soft cloth. Do not use alcohol or detergent to clean the
LCD.
Front View
.1/ LCD
.2/ Built-in Microphone
.3/ Brightness Control
.4/ Status Indicator
See “Status Indicators” on page 420.
.5/ External Input Device Connector
.6/ PCMCIA Slot
.7/ PCMCIA Release Lever
.8/ Keyboard
.9/ LCD and Keyboard Latch
.1ð/ Click Button
.11/ Diskette-Eject Button
.12/ Diskette Drive
.13/ Front Infrared Port
.14/ Fn Key
.15/ TrackPoint III
.16/ Volume Knob
.17/ Built-in Speaker
2
3
4
1a
2
43 3
4
5
42 6
41 7
40
39 8
38
37 9
36
10
35
34
33 11
32
12
31
13
30 14
15
29
16
28 17
27
26 18
25
19
20
24
23 22 21
DAA Assembly
Austria 59G1041
Australia 59G1040
Belgium 43G3414
Denmark 59G1042
Finland 59G1043
France 4525652
Germany 59G1056
Korea 66X2096
Malaysia 59G1066
Netherlands 43G3409
Norway 59G1044
New Zealand 43G3411
PRC/Hong Kong 54F0693
Singapore 66X2096
Sweden 54F0717
Switzerland 59G1057
Taiwan 59G1067
Thailand 59G1065
U.K. 59G1045
Options
Notes:
1. When you replace the AC Adapter or the Quick
Charger with a new one, use the one for the country
you are in even if the system is from different country.
2. The warranty for the system unit does not apply to all
options.
AC Adapter (40W) 49G2196
For Japan 49G2197
AC Adapter (100 - 125 V ac, 40W) 84G4320
(This adapter is for U.S. only.)
Audio Cable 66G5180
Car-Battery Adapter 49G1148
Small Car Battery Adapter 84G4359
Diskette Drive Attachment Unit 66G5069
IC DRAM CARD 2MB 07G1414
IC DRAM CARD 4MB 07G1415
IC DRAM CARD 8MB 07G1416
IC DRAM CARD 16MB 66G0094
Microphone 66G7871
Travel Quick Charger (3-pin) 85G1530
Quick Charger Cable 85G1531
DIMM 4MB 84G4323
DIMM 8MB 84G6545
DIMM 16MB 84G4324
DIMM Adapter Card 84G4322
Headset 85G1429
Black Keypad
French 84G6286
German 84G6280
Italian 84G6292
Swedish 84G6304
U.K. English 84G6298
Norway 84G6310
U.S. English 84G2530
Black Keyboard
French 84G6285
German 84G6279
Italian 84G6291
Swedish 84G6303
U.K. English 84G6297
Norway 84G6309
U.S. English 84G2529
Tools
Tri-Connector Wrap Plug 72X8546
PC Test Card 35G4703
Audio Wrap Cable 66G5180
Screwdriver Kit 95F3598
ThinkPad 750Ce 82G3891
Hardware Maintenance Diskette
(This diskette is common to
all ThinkPad models.)
1 6
2 7
3 8
4 9
5 10
002
The diagnostic tests have completed successfully. If
you suspect a problem, go to Step 004.
003
Go to the Symptom-to-FRU Index for the computer you are
servicing.
004
– Check the PSTN cable and the DAA cable, if installed,
for continuity.
IS THE CABLE(S) GOOD?
Yes No
005
Replace the defective cable(s).
006
(Step 006 continues)
007
Go to Step 011.
008
– Have the customer receive an incoming call on the
modem.
WAS THE INCOMING CALL RECEIVED?
Yes No
009
Go to Step 014.
010
The diagnostic tests have completed successfully. If you
still suspect a problem that is not software related, replace
the External DAA; then replace the modem.
011
– Have the customer transmit a call at a lower speed.
WAS THE CALL TRANSMITTED SUCCESSFULLY?
Yes No
012
If installed, replace the external DAA. If you do not
have an external DAA installed, or replacing the
external DAA does not correct the problem, replace
the modem.
013
Have the telephone line checked.
014
– Have the customer receive an incoming call on the
modem at a lower speed.
WAS THE INCOMING CALL RECEIVED?
Yes No
015
If installed, replace the external DAA. If you do not
have an external DAA installed, or replacing the
external DAA does not correct the problem, replace
the modem.
016
Have the telephone line checked.
Printer Checkout
1. Make sure the printer is correctly connected and is
powered-on.
2. Run the printer self-test.
13 2
12
3
11 4
10
5
6
7
9 8
Icons Functions
.1/ Front Panel Used to change the TV
channels, switch TV mode
to computer mode, and
operate most functions of
the TV Tuner.
.2/ Headphone Jack Connects the headphones.
Key Function
Power Turns on the TV Tuner. This key is
used only when the computer is turned
on.
Message on Parameter
LCD
TV Channel
à (xx) By using and , you can select
the channels from 2 to 69.
Color Adjustment
à COL By pressing and holding or ,
you can change the color.
TINT Adjustment
à TNT By pressing and holding or ,
you can change the tint.
Bright Adjustment
à BRT By pressing and holding or ,
you can change the brightness.
Contrast Adjustment
à CNT By pressing and holding or ,
you can change the contrast.
(No function)
à --- Reserved.
Warning
If power for the internal device is turned off when
the TV Tuner is set up, nothing appears on the
LCD display. Turn on power for the TV Tuner
again.
CD-ROM Drives
Enhanced Internal CD-ROM II Drive 61G1901
(With eject button below slot)
Internal CD-ROM I Drive 81F7930
(eject button above slot)
Terminator Kit (for 81F7930) 59F3530
Cleaning Kit (for 81F7930) 59F3562
(Disks, CD Caddy)
Internal CD-ROM II Drive 92F0084
(With eject button below slot)
Terminator Kit (for 92F0084) 92F0082
Media Kit (for 92F0084) 31F4232
(no cleaning necessary, Test Disk, CD Caddy)
Signal Cable 34F0043
Power Cable 72X8521
Remote ID Switch Cable (3510) 92F0086
Audio Card, Cable, Screws (3510) 92F0085
CD Caddy 22F9419
Rail Kit (3510) 34F0041
Headphones 53F3610
External Keyboard/Mouse
Keyboard Cable 72X8537
Mouse 61X8923
Mouse Ball and Pop-Off Retainer 33F8461
Mouse Ball and Twist-Off Retainer 33F8462
Mouse (New Style) 33G5420
Mouse Retainer Ring 33G5417
Miniature Mouse 95F5723
1 6
2 7
3 8
4 9
5 10
Index Country
1 Colombia, U.S., Venezuela 6952300
Colombia, U.S., Venezuela 62X1045
2 Hong Kong, Singapore, U.K. 14F0033
3 France, Germany, Spain 13F9979
4 Italy, Chile 14F0069
5 Australia, New Zealand, New Guinea, 13F9940
Papua
6 Denmark 13F9997
7 Israel 14F0087
8 Bangladesh, Pakistan, South Africa, 14F0015
Sri Lanka
9 Switzerland 14F0051
10 Thailand 1838574
Japan 79F2755
Name
Phone Number
Name
Address
City
State Zip
Important
Number Information
919-517-0001 Bulletin Board Service - PC Company
800-937-3737 IBM Business Partner Education
800-426-2472 IBM Customer Engineer Technical
Support
800-426-7763 IBM National Support Center
800-IBM-DEAL IBM PartnerLink Technical Support
303-924-4015 IBM Part Number ID and Look Up
800-237-5511 IBM Software Defect Support (CSDs)
800-327-5711 IBM Software Ordering (publications)
800-426-1484 IBM Supplies Technical Hotline
800-759-7483 IBM Warranty Claims Center
800-342-6672 OS/2 Replacement Diskettes (problems
during new system installation)
Number Information
919-517-0001 Bulletin Board Service - PC Company
800-426-8322 Customer Education Business Unit
800-999-0052 Customized Operational Services
407-982-6408 Developers Assistance (HW & SW)
800-964-8523 End User Support
800-772-2227 HelpCenter*, HelpLearn*, and
Customer Satisfaction Center
800-426-4238 HelpCenter* (TDD/ASCII)
800-742-2493 IBM Anti-Virus Services
800-447-4700 IBM Authorized Dealer Referrals
800-426-4238 IBM Customer Satisfaction Center
(TDD/ASCII)
800-426-2468 IBM Dealer Referral
(typewriters/printers)
800-426-2468 IBM Direct (supplies, education)
800-282-0226 IBM Field Television Network
800-426-3333 IBM Information Referral Service
800-IBM-SERV IBM Service
800-426-7282 IBM Technical Manuals
800-426-9402 Multimedia Information Center
(Ext. 150)
800-241-1620 Multimedia Support
800-742-2493 Multivendor Consulting
800-342-6672 OS/2 Information Line
800-237-5511 OS/2 Support Center
800-237-5511 OS/2 Support Line
Number Information
303-924-4125 Parts Information
800-284-5933 Prodigy** Service (link problems)
914-962-0310 Prodigy User Questions
800-237-4824 PS/2 Trade-In Program
PS/2 Loan for Learning
PS/2 Lease from IBM Credit
800-742-2943 Solution Validation Lab
800-547-1283 Technical Coordinator Program
SystemXtra* for Personal Systems
LAN Automated Distribution/2
OS/2 Bulletin Board
OS/2 Application Assistance Center
800-426-2622 Technical Services, Boca Raton (fee)
606-323-3000 Technical Support (typewriters/printers)
800-551-2832 Technical Solutions Magazine
Number Information
800-387-8343 Ambra Customer Support
800-668-5682 Ambra Business Partner Warranty
Support
800-387-8343 Ambra Business Partner
Parts/Warranty Claims
905-316-7952 Ambra Bulletin Board
800-661-PSMT Business Partner Marketing Support
905-316-5556 Business Partner Marketing Support -
Toronto
514-938-6048 Business Partner Marketing Support -
French
800-465-6600 Customer Relations
905-316-6666 Customer Relations - Toronto
800-465-6666 Customer Service Dispatch
800-263-2769 Customer Service Parts
800-465-2222 Customer Support Center (ISC)
416-443-5701 Customer Service Repair Centre
800-465-7999 HelpClub* Registration
800-465-7999 IBM Direct
905-513-3367 IBM Certification Administrator
905-316-2683 IBM Certification Coordinator
Mail to: IBM Certification
50 Acadia Drive
Markham, Ontario L3R 0B3
800-465-3299 IBM HelpFax
905-316-3299 IBM HelpFax - Toronto
800-565-3344 IBM HelpPC
800-268-3100 IBM Information Network Support
905-474-6666 IBM Information Network Support -
Toronto
Number Information
800-663-7662 Lexmark Product Information
800-263-2769 Parts Orders, Exchange or Emergency
416-443-5808 Parts Regular Orders, Exchange
(Fax)
416-443-5755 Parts Orders, Inquiries
514-938-3022 PC Co Bulletin Board - Montreal
905-316-4255 PC Co Bulletin Board - Toronto
604-664-6464 PC Co Bulletin Board - Vancouver
204-934-2735 PC Co Bulletin Board - Winnepeg
800-661-7768 PS Marketing Support (PSMT)
800-465-1234 Publications Ordering
416-513-3360 Service Announcement, HMS Manuals
416-513-3372 Service Announcement, HMS Manuals
(Fax)
905-316-4148 Service Management Support
905-316-4100 Service Management Support
(Fax)
905-316-4150 Service Manager
905-316-4100 Service Manager
(Fax)
905-316-4872 Service Quality Programs
905-316-4100 Service Quality Programs
(Fax)
800-661-2131 Skill Dynamics* (Education)
800-387-8483 PS/1 Warranty Service,
Business Partner (DOAs)
800-565-3344 PS/1 Warranty Service, Customer
Helpline
416-443-5835 Warranty Claim Fulfillment
(Fax)
905-316-2445 Warranty Claim Reimbursement
905-316-3515 Warranty Claim Reimbursement
(Fax)
416-443-5778 Warranty Claim Parts Inquiry
800-505-1855 Warranty Provider Support Hotline
416-946-1333 Warranty Provider Support - Toronto
800-267-7472 Warranty Service, ThinkPad
Trademarks
The following terms, denoted by an asterisk (*) in this
publication, are trademarks of the IBM Corporation in the
United States and/or other countries:
AIX AT
FaxConcentrator HelpCenter
HelpClub HelpLearn
HelpWare IBM
Micro Channel OS/2
Personal System/2 PS/2
PS/Note Portmaster
Skill Dynamics SystemXtra
ThinkPad Trackpoint
TrackPoint II XGA
Printed in U.S.A.
S82G-15ð2-ð3