Acer Acer –LCD-P205H

Service Manual
LCD Monitor Acer P205H

-0-
1

Table of Contents

Important Safety Notice .........................................................................................02

01 Product Specification ..........................................................................................03
02 Flat Panel Specification .......................................................................................15
03 Exploded Diagram ..............................................................................................36
04 Troubleshooting ....................................................................................................37
05 Spare Parts List ...................................................................................................42
06 Schematics and Layouts.......................................................................................43
07 Assembly and Disassembly ................................................................................46

Appendix : User’s manual

Copyright
Copyright 2006 InnoLux Tech. Corp. Ltd

All Rights Reserved

This manual may not, in whole or in part, be copied, Photocopied, reproduced, translated, or converted to any
electronic or machine readable form without prior written permission of InnoLux Tech. Corp. Ltd.

Acer P205H Service Manual

1
Acer Acer –LCD-P205H

Important Safety Notice

1. Safety precautions
This monitor is manufactured and tested on a ground principle that a user’s safety comes first.
However, improper used or installation may cause damage to the monitor as well as to the user.
Warning:
z This monitor should be operated only at the correct power sources indicated on the label on the
rear of the monitor. If you’re unsure of the power supply in you residence, consult your local dealer
or Power Company.
z Do not try to repair the monitor by yourself, as it contains no user-serviceable parts. This monitor
should only be repaired by a qualified technician.
z Do not remove the monitor cabinet. There are high-voltage parts inside that may cause electric
shock to human bodies.
z Stop using the monitor if the cabinet is damaged. Have it checked by a service technician.
z Put your monitor only in a lean, cool, dry environment. If it gets wet, unplug the power cable
immediately and consult your closed dealer.
z Always unplug the monitor before cleaning it. Clean the cabinet with a clean, dry cloth. Apply
non-ammonia based cleaner onto the cloth, not directly onto the class screen.
z Do not place heavy objects on the monitor or power cord.

2. Product safety notice

Many electrical and mechanical parts in this chassis have special safety visual inspections and the
protection afforded by them cannot necessarily be obtained by using replacement components rated
for higher voltage, wattage, etc. Before replacing any of these components read the parts list in this
manual carefully. The use of substitute replacement parts, which do not have the same safety
characteristics as specified in the parts list, may create shock, fire, or other hazards.

3. Service notes
z When replacing parts or circuit boards, clamp the lead wires around terminals before soldering.
z Keep wires away from high voltage, high temperature components and sharp edges.
z Keep wires in their original position so as to reduce interference.
z Adjustment of this product please refers to the user’ manual.

2
 Acer Acer –LCD-P205H
01 Product Specification
1. General:
P205H series LCD monitor is designed with a wide screen 20.0” WXGA+ TFT LCD panel, LVDS interface, analog RGB signal input
and DVI-D signal input.It featured with embedded universal AC power supply. This monitor can support maximum resolution up to
1600 x 900@60Hz. It support HDCP and color management function.
1.1 Main Features
Maximum resolution : 1600 x 900 @ 60Hz
Back light system : 4 CCFL (top & bottom edge side)
Pixel pitch : 0.2768 (H) x 0.2768 (V)
Display area : 442.8(H)x249.2(V) 20.0 inch diagonal
Brightness : ≥250cd/m²
Contrast ratio : 1000‫׃‬1 (typ.) (1)
ACM (option) :20000:1
Response time (Tr+Tf) : 5ms (typ.) (2)
GTG (Option) : 2ms
Viewing angle : 160°(H)/ 160°(V), typ (3)
Input interface : Analog (D-sub 15 pin)
Digital Option(DVI-D 24 pin)
Power management : Compatible with VESA DPMS
Plug & Play : VESA DDCCI
OSD language
Non EU version : English, French, German, Italian, Spanish, Chinese S. Chinese T. Japanese
EMEA version : English, French, German, Italian, Spanish, Dutch, Finnish, Russian
Russian version : Russian
Universal AC power supply
Note (1)(2)(3): This item spec depend on the LCD panel.

1.2 Accessories

Power cable VGA DVI Audio Warranty Quick-start Camera CD

Items HDMI cable
(option) cable Cable cable card Guide Wizard

Description 1.8m 1.8m 1.8m 1.8m 1.8m Multi Multi Multi

● ● ● ● ● ●

AC Power Cord : 1.8 m. (Black. Cord type depend on sale region)

VGA cable : 1.8 m. (15 pin D-SUB, black cable with blue male connector)
Quick-start Guide : User manual English (640Mb CD)
Audio cable : 1.8m. (Green/Blue header)
DVI cable : 1.8 m. (18+1 pin, black cable with white connector)
Audio Cable(option) : 1.8 m (Audio Line Cable Green/Blue header)

2. Operation Specifications
The unit should suffer no visible cosmetic damage and should operate with no degradation in display quality during
exposure to the operating conditions and after exposure to the non-operating conditions, in any sequence.
2.1 Environmental conditions
2.1.1 Operating:
Temperature range : 0°C to 40°C
Relative humidity : 20% to 90%

2.1.2 Storage note 1:

3
 Acer Acer –LCD-P205H
Temperature range : -20°C to 60°C
Humidity range : 10% to 90%

2.1.3 Altitude note 2

Operating 10000 ft (Ta=50, t=24h)
Storage 40000 ft (Ta=30, t=24h )
Note 1: Temperature and relative humidity range must be in the area shown as the following figure due to panel limited
Note 2: Altitude spec must not over panel spec.

Figure 1 Absolute Ratings of Environment

2.2 Safety, EMC, Ergonomics and Compatibility Requirements

UL/ cUL, CE, CB, CCC, Nemko/Ergo, C-Tick (N214), VCCI,
Safety & EMC
FCC, CCC, BSMI,
Ergonomics Nemko/Ergo,MPR II,ISO13460-2
Compatibility Windows 98/Me/2000, Windows XP, Window Vista
Power Management Energy Star V4

2.3 Electrostatic Discharge Requirements

The subject unit must withstand ±8KV for contact discharge and ±15KV for air discharge of Electrostatic Discharge
and meet the standard of IEC61000-4-2(EN55024). (without discharge on VGA/DVI/HDMI pin)
Item Condition Spec Remark
Contact discharge : +/-4KV
150pF/330ohm.
Electrostatic Contact discharge : +/-8KV ● Each point 10
Acer SPEC
Discharge Air discharge : +/-8KV times.
1 time/Sec.
Air discharge : +/-15KV ●

2.4 Reliability
The MTBF of this product shall be greater than 40,000 hours excluding the LCD panel. The LCD panel life which is
defined as the time period for the maximum luminance to reduce to 50% of the initial value is 40,000 hours minimum at
the condition of displaying an all WHITE field at mid Brightness and Contrast settings.

3. Electrical and Optical Characteristics and Performance

3.1 Main Power Supply
3.1.1 Input characteristics

4
 Acer Acer –LCD-P205H
Items Condition Spec Note
AC Input Voltage range Universal input full range 90~264Vac
AC Input Voltage rating Universal input full range 100~240Vac
AC input frequency range 90~264Vac 47~63Hz
AC input frequency rating 100~240Vac 50~60Hz
AC Input Current 100Vac 1.5A(max)
240Vac 0.8A(max)
Inrush Current 115Vac,cold star,25°C 35A (max) See Note2
230Vac,cold star,25°C 70A(max)
AC-DC power Efficiency DC output full loading ≥80%
Note2. Before each test, the buck capacitor needs to be discharged.
Before each test, it must be 10 minutes at least after the latest test.
Hot star not component be damaged.

3.1.2 Output characteristics

Items Condition Spec Note
Ripple and Noise +24V output <1000mv See note 2
+5V output <200mv

audio 5V output <300mv

24v loading:0.2A~1.2A Vcc24V:23V~28V For system active
5v loading:0. 7A~1.5A Vcc5V:4.85V~5.35V
audio 5v loading:0A~1.0A audio 5v:4.5V~5.5V
5v loading:0.04A~1.5A Vcc24V: 23V~30V Vcc5V: For power saving or DC off
14V loading: 0A 4.85V~5.35V
audio 5v loading:0A audio 5v:4.5V~5.5V
DC Output Voltage
Vcc5V/1.5A
Vcc24V/1.2A
audio 5V/1.0A
DC output loading <50mS
capability
Hold-up time AC input: 100V~240V >10mS
Overshoot <10%
Turn on delay time <2S
Power management See Table-1
Note3: Paralleled a 0.1uF ceramic Cap. And 47uF aluminum Cap. Between the end of DC loading side, Measured
band-width=20MHz. Ripple voltage of +25V is less than 1500mV when enter into burst mode.
3.1.3 Protection characteristics
Protection Condition Spec
OPP nominal AC input 55W ( min )
SCP(short circuit protection) Before fuse with auto-recovery function
OVP(Over voltage protection) Auto recovery <output capacitor voltage

Table-1
Status H-sync V-sync Video Power LED
5
Acer Acer –LCD-P205H
Power On on on active ≤ 48W Blue
off on blanked < 2W Yellow
Power Saving on off blanked < 2W Yellow
off off blanked < 2W Yellow
Power Off -- -- -- < 1W Off

3.1.4 Backlight Power Supply

Items Specification

SEC LTM200KT01 panel

Panel
LGD LM200WD1-TLB1 panel

Lamp 4 CCFL

Input Voltage DC 23~28 V

Input current 1.1A (Typ.), 1.2A (Max.)

5.5V≧Von≧ 2.0 V (on)

On/Off switch level
-0.3v ≤ Voff ≤ 0.8 V (off)

Brightness PWM Duty (ACM Off) 30%~100%

Brightness PWM Duty (ACM On) 10%~100%

CCFL operating Voltage 800Vrms (Typ.),

2.5 mA (min.)

CCFL Current 7.0mA (Typ.)

8.0 mA (Max.)

CCFL startup voltage ≧1700 Vrms (0˚C)

Operating frequency 40~60KHz

Protect delay time > 1 second

Efficiency ≥70% (Using dummy load)

Note: Other panels please refer to the reference panel specs.
3.2 Brightness output
The test to verify specifications in this section shall be performed under the following standard conditions unless otherwise
noted.
Temperature : 25 ± 5°C
Test pattern : white
Video Resolution : 1600 x 900
Video input level : 700 mV ± 2%
Warm-up time : 30 minutes
Set brightness control and also contrast control at maximum, to measure the screen center, the light output shall ≥ 240
2
cd/m (as panel spec)

3.3 White balance

The test standard conditions refer to Sec 3.3.(Brightness control is at 100 contrast control is at 50 )

Mode Chromaticity Coordinate

6
 Acer Acer –LCD-P205H
x y
Cool 9300K 0.283 ± 0.030 0.297 ± 0.030
Warm 6500K 0.313 ± 0.030 0.329 ± 0.030
User Panel While x Panel While y

3.4 Brightness uniformity

The test standard conditions refer to Sec 3.4.

(4)
Note (4): 25% is for Samsung panel LTM200KT01 (first source).The second source spec follow Sec 5.1.
3.5 Audio Signal(option)

Items Specification
Input impedance ≧ 10K ohm

Frequency response range 200Hz –20kHz

Signal to noise ratio ≧ 40 dB

Output power ≦1.5 W + 1.5 W(±20% tolerance), THD 10%.

Loading impedance 4 ohm

4. Input / Output Signal Specifications

4.1 Video signals
Analog RGB signal: 0.7Vp-p (Input impedance = 75 Ohm)
Sync: TTL level (Input impedance ≧ 1k Ohm)
Positive and negative sync of Separate Horizontal/Vertical Sync
Digital : TMDS Signal: (min) ±200mVpp@24Bit
4.2 Signal Timing
Through D-SUB/DVI/HDMI connectors, this unit can support FH= 31~84 KHz, Fv=56~75Hz, with maximum pixel clock
160MHz input signal and WXGA+ output. Modes details as below:

VESA MODES
7
Acer Acer –LCD-P205H
Horizontal Vertical
Nominal
Mode Resolution Total Nominal Nominal Pixel Clock
Sync Sync
Frequency Frequency (MHz)
Polarity Polarity
+/-0.5KHz +/-1Hz
640*480@60Hz 800*525 31.469 N 59.941 N 25.175
VGA 640*480@72Hz 832*520 37.861 N 72.809 N 31.500
640*480@75Hz 840*500 37.500 N 75.000 N 31.500
800*600@56Hz 1024*625 35.156 P 56.250 P 36.000
800*600@60Hz 1056*628 37.879 P 60.317 P 40.000
SVGA
800*600@72Hz 1040*666 48.077 P 72.188 P 50.000
800*600@75Hz 1056*625 46.875 P 75.000 P 49.500
1024*768@60Hz 1344*806 48.363 N 60.004 N 65.000
XGA 1024*768@70Hz 1328*806 56.476 N 70.069 N 75.000
1024*768@75Hz 1312*800 60.023 P 75.029 P 78.750
VESA 1152*864@75Hz 1600*900 67.500 P 75.000 P 108.000
1280*960@60Hz 1800*1000 60.000 P 60.000 P 108.000
720x400@70Hz 900*449 31.469 N 70.087 P 28.322
1280*720@60Hz 1650x750 44.955 N 59.940 P 74.176
1280*1024@60Hz 1688*1066 63.981 P 60.020 P 108.000
SXGA
1280*1024@75Hz 1688*1066 79.976 P 75.025 P 135.000
640*480@66.7Hz 864*525 35.000 P 66.667 P 30.240
MAX
1152*870@75Hz 1568*909 68.775 N 75.00 N 84.520
832*624@75Hz 1152*667 49.725 N 74.550 N 57.283
WXGA 1280*800@60Hz 1680*831 49.702 N 59.810 P 83.500
WXGA 1600x900@60Hz 2122x934 55.99 N 59.946 P 118.250
WXGA 1600*900@75Hz 1936*942 70.546 N 74.889 P 151.25

4.3 Timing requirements

The LCD monitor must be capable of displaying standard resolutions within the vertical frequency range of 56 ~ 75 Hz
and the horizontal scan range of 31~84 KHz with maximum pixel clock of 160MHz.
Vertical / Horizontal Sync polarity: positive or negative.
If input signal is out of range of horizontal 31~84 KHz or vertical 56-75Hz, or pixel clock large than 160MHz, message
“Input not Supported” is shown on screen.

4.4 DDC date

P205H Analog
0 1 2 3 4 5 6 7 8 9 A B C D E F
0 00 FF FF FF FF FF FF 00 04 72 D1 00 00 00 00 00
1 00 00 01 03 08 2C 19 78 EA DE 95 A3 54 4C 99 26
2 0F 50 54 BF EF 90 81 00 71 4F 81 40 81 C0 A9 C0
3 01 01 01 01 01 01 31 2E 40 00 62 84 22 30 58 A8
4 35 00 BB F9 10 00 00 1F 00 00 00 FD 00 38 4B 1F
5 54 10 00 0A 20 20 20 20 20 20 00 00 00 FF 00 30
6 30 30 30 30 30 30 30 30 30 30 30 0A 00 00 00 FC
7 00 50 32 30 35 48 0A 20 20 20 20 20 20 20 00 DA

8
 Acer Acer –LCD-P205H
P205H DVI

0 1 2 3 4 5 6 7 8 9 A B C D E F
0 00 FF FF FF FF FF FF 00 04 72 D1 00 00 00 00 00
1 00 00 01 03 80 2C 19 78 EA DE 95 A3 54 4C 99 26
2 0F 50 54 BF EF 90 81 00 71 4F 81 40 81 C0 A9 C0
3 01 01 01 01 01 01 31 2E 40 00 62 84 22 30 58 A8
4 35 00 BB F9 10 00 00 1F 00 00 00 FD 00 38 4B 1F
5 54 10 00 0A 20 20 20 20 20 20 00 00 00 FF 00 30
6 30 30 30 30 30 30 30 30 30 30 30 0A 00 00 00 FC
7 00 50 32 30 35 48 0A 20 20 20 20 20 20 20 00 62

5. Function Specifications
5.1 Keypad Function

6.1.1 Control buttons

A. When OSD un-displays, press [AUTO] and the function menu will show on the screen;
[AUTO] B. When function menu displays, press [AUTO] to perform auto-adjustment;
C. When OSD displays, press [AUTO] to return to previous level menu;
D. When “e Color OSD” OSD displays, press [AUTO] to exit the OSD.
A. When OSD isn’t shown on screen, press [MENU] to enter the function menu;
[MENU] B. When function menu displays, press [AUTO] to enter the main menu OSD;
C. When OSD displays, press [MENU] to perform function of menu icon that is highlight or
enter next level menu

A. When OSD isn’t show on screen, press [◄] to enter the function menu;
[◄]
B. When “MENU OSD” displays, press these keys to change the contents of an
adjustment item, or change an adjustment value;
C. When Function menu displays, press [◄] to show “Audio” OSD and decrease the
volume.
A. When OSD isn’t show on screen, press [►]to enter the function menu;
B. When “MENU OSD” displays, press these keys to change the contents of an
adjustment item, or change an adjustment value;
C. When Function menu displays:
[►] a. Press [►] key one time to search (a port with signal in order)
b. Show “source icon” at the same time, as searching that port
c. Go into next port automatically, if search the port without signal
d. Display it, if search the port with signal
D. When the volume menu displays, press [►] to increase the volume.
A. When function menu displays, press [e Color] to show “e Color OSD”, and press
again the OSD can not disappear, but the time of “e Color OSD ”disappearing is reset
[e Color ] to 10 seconds again.
B. When OSD disappear not including “e Color OSD”, press [e Color] to show “e Color
OSD” OSD, the OSD before disappears, but the parameters of it should be saved

[POWER] Power on or power off the monitor

5.1.2Hot Key Operation

9
Acer Acer –LCD-P205H
HOT KEY OPERATION
FUNCTION DESCRIPTION
e Color AUTO MENU ◄ ► POWER

Press [e], and then press [POWER] for DC

FACTORY
MODE
● ON power on. OSD menu will be shown with “F” on
the left top. Select “F” for entering factory mode.

5.2 OSD Structure

The On-Screen Display (OSD) shall be an easy to use icon based menu through keypad OSD buttons or remote control
unit. The unit shall leave the factory with all OSD controls set to their default values.
Control
First Second Third Fourth Default Value
Range

e-color empowering --- --- ---

technology
Auto --- --- --- ---
Function
Menu Main menu Main menu (Pictiure) --- --- ---

Audio Audio menu --- --- ---

Input --- --- --- ---

Acer eColor Management empowering --- --- Standard

technology
77
User mode
Text mode 44

Brightness --- --- 0～100 Standard mode 77

97
Graphics mode
77
Movie mode
50
User mode
50
Text mode

Contrast --- --- 0～100 50

Standard mode
60
Graphics mode
Picture 56
Movie mode
H.Position 0～100 50

V.Position 0～100 50
--- ---
Focus 0～100 ---

Clock 0～100 50 ○
1

Warm --- --- Default

Cool --- --- ---

Colour Temp Red 0～100 80

User Green 0～100 80

Blue 0～100 80

Auto Config --- --- --- ---

10
Acer Acer –LCD-P205H
OSD OSD Timeout --- --- 10～120 10

Full --- --- Default

Wide Mode
Aspect --- --- ---

DDC/CI --- --- --- ON

ACM --- --- --- OFF

Analog --- --- ---

Source
Digital --- --- ---

EMEA NO-EMEA --- ---

English English --- ---

Setting
Russian 繁體中文 --- ---

Deutsch Deutsch --- ---

Language Français Français --- --- English

Español Español --- ---

Italiano Italiano --- ---

Dutch 简体中文 --- ---

Finnish 日本語 --- ---

Reset --- --- --- ---

Resolution --- --- --- ---

H.Freq --- --- --- ---

Info V.Freq --- --- --- ---

Input Type --- --- --- ---

S/N --- --- --- ---

Notes; ○
1 Clock default 50 is for Visa timing. Others depend on timing.

11
Acer Acer –LCD-P205H
6. SOP of firmware upgrade (Manufacturer of Scaler is Mstar)

6.1 Operational condition:

Equipment: PC, ISP card, signal cable and power cable.
ESD requirements: antistatic wrists, antistatic gloves (fingers), and connecting cable
Name of ISP program: ISP_Tool_v3.7.5.exe
Manufacture of FW IC：PMC/SST/MX

6.2 Operational steps:

1. Connection: connect PC to PCBA with signal cable, and then keep AC and DC in open state.

One port of ISP

program card
is connected to
PC print port.

2. Adjust ISP programming

Firstly, double click ISP_Tool_v3.7.5EXEI and open ISP program, then select “Device”, next select manufacturer model of
FW IC, which should be correspondent with that of PCBA FW IC. Double click Figure One.

FW IC
Model

Secondly﹐download FW software: first select “READ”, and then load FW software in Rooter (Fig.2).

12
Acer Acer –LCD-P205H

FW software
rooter

Software
Checksum

Thirdly, select “Connect” and enter ISP MODE as in the following Figure 3.

Fourthly, select “AUTO”, and keep its default value. Click “RUN” for beginning programming. There will be prompting if
programming is OK.

13
Acer Acer –LCD-P205H

Note: if programming fails or success rate is not high, click “Config” and adjust its speed in “E2PROM DEVICE SETTING”

14
Acer Acer –LCD-P205H

After connecting, AC ON,

DC ON

OK ◆Flowing chart
Open ISP program
OK
Choose manufacturer
and model of FW IC

OK
LOAD FW software
OK
Click Connect and enter
ISP MODE

OK
Click AUTO and RUN for Choose Config
and adjust
beginning programming programming

OK NG
Turn off power if
programming is OK

15
Acer Acer –LCD-P205H
02. Flat Panel Specification

16
Acer Acer –LCD-P205H

17
Acer Acer –LCD-P205H

18
Acer Acer –LCD-P205H

19
Acer Acer –LCD-P205H

20
Acer Acer –LCD-P205H

21
Acer Acer –LCD-P205H

22
Acer Acer –LCD-P205H

23
Acer Acer –LCD-P205H

24
Acer Acer –LCD-P205H

25
Acer Acer –LCD-P205H

26
Acer Acer –LCD-P205H

27
Acer Acer –LCD-P205H

28
Acer Acer –LCD-P205H

29
Acer Acer –LCD-P205H

30
Acer Acer –LCD-P205H

31
Acer Acer –LCD-P205H

32
Acer Acer –LCD-P205H

33
Acer Acer –LCD-P205H

34
Acer Acer –LCD-P205H

35
Acer Acer –LCD-P205H

36
Acer Acer –LCD-P205H

37
Acer Acer –LCD-P205H

38
Acer Acer –LCD-P205H

39
Acer Acer –LCD-P205H

40
Acer Acer –LCD-P205H

41
Acer Acer –LCD-P205H

42
Acer Acer –LCD-P205H

43
Acer Acer –LCD-P205H

44
Acer Acer –LCD-P205H

45
Acer Acer –LCD-P205H

46
Acer Acer –LCD-P205H

47
 Acer Acer –LCD-P205H

03 Exploded Diagram
3.1 P205H_SCREW_LIST

Fixed
Item Part No. Description Qty Remark
T(kg*cm)
I/F Board to Chassis*1
1 509146306200R SCREW,P,CROSS,W/WAS,M3*6,Zn-Cc 5 4.5~5.0
Power Board to Chassis*4
D-SUB CON*2
2 509000000700R BOLT,#4-40x11.8,Ni ROHS 4 4.0±0.5
DVI *2

3 509412610500R SCREW,B,CROSS,T.T-4*10,BLK ,ROHS 2 6.5±0.5 Hinge to Stand

SCREW,F,CROSS,M4*8,Zn,ROHS(NYLOK
4 509216608110R 4 10±0.5 Hinge to backcover
,35F)

5 509212608120R SCREW,F,CROSS,T4*8,Zn,ROHS(5.8~6.2) 9 6.5±0.5 Base Plate to Base

6 509112308500R SCREW,P,CROSS,T.T-3*8,Zn ROHS 1 3.5±0.5 Power Board to backcover

3.2. LCD Exploded drawing (All)

48
 InnoLux Monitor新產品開發文件
文件名稱：ME Assembly Drawing 文件編號：LE120T5-DR4-07
產品名稱：LE20T5 (P205H) 日期：2009/03/02 版別：V01

開發階段：□DR1 □DR2 □DR3 ■DR4 □DR5 □DR6 □DR7 保存單位：DCC

文件製作：ME 保存年限：3 年

1.P205H EXPLODE DRAWING:

頁數/總頁數Page/Total Pages：3/7
版權屬於群創所有.禁止任何未經授權的使用.
The copyright belongs to InnoLux. Any unauthorized use is prohibited.
Acer Acer –LCD-P205H
04 Troubleshooting
1. No Power & Power LED Off
No power
&LED off

YES

NO NO
Check prim ary Check circuit if short Check IC802,
rectifier voltage C805, T801

YES
YES Check
F801, F802,
P801, D801

Check pin3 of IC802 NO Check R801,

voltage about 1V R805, R822,
R823, R817

YES

NO Check R803,
Check pin2 of IC802 R807, R824,
voltage about 2V R825

YES

Check pin1 of IC802 NO Check R812,

voltage is 5.8V R816, C818

YES

END

49
Acer Acer –LCD-P205H

2. DC output voltage is unstable

U n sta b le p o w e r

NO
NO
C h e ck C h e ck R 8 1 0 , C hange R 810,
sa m p lin g R 8 1 1 ,R 8 1 8 R 811, R 818
C ircu it

YES

NO NO
C h e ck th e R p in C h e ck th e C p in
vo lta g e o f IC 8 0 3 C h a n g e IC 8 0 3
a b o u t 2 .5 V vo lta g e o f IC 8 0 3
if 3V

YES

YES C h e ck
R809, R 808,
R814, D 809

NO
C h e ck p in 1 o f C h e ck D 8 0 6 ,
IC 8 0 2 vo lta g e is C 8 1 5 if sh o rt
5 .8 V

C hange
D 806,
C 815
YES

NO
C h e ck p in 3 o f Change R 801,
R805, R 822,
IC 8 0 2 vo lta g e R823, R 817
about 1V

YES

END

50
Acer Acer –LCD-P205H

3. Backlight can’t be turned on

N o ra s te r

YES

L E D G re e n ?

YES

B a c k lig h t c a n
n o t b e tu rn e d o n

YES

NO
I s th e re 1 4 V d c C heck pow er
v o lta g e o n p in 1 3 o f s u p p ly
IC 5 0 1 ?

YES

YES
NO
Is th e re h ig h -le v e l
v o lta g e o n p in 8 o f Is R 5 2 6 O k ? C h e c k I/F b o a rd
IC 5 0 1

YES R 526 open

NO

NO C o n n e c tin g th e
C heck C N 501, C N 502, o u tp u t c o n n e c to r
CN 503 and C N 504?
a g a in

YES

NO YES
Is th e re p u ls e w a v e fo rm o n p in 1 ,
p in 3 , p in 1 5 a n d p in 1 6 o f IC 5 0 1 a t th e Is O k IC 5 0 1 ? U 5 0 1 , U 5 0 2 fa il
m o m e n t o f re s ta rt?

NO

YES IC 5 0 1 fa il
NO

Is o k T 5 0 1 , T 5 0 2 ? T 5 0 1 , T 5 0 2 fa il

YES

C h e c k p ro te c te d
c irc u it Q 5 0 1 , Q 5 0 2 ,
Q 503, Q 504

END

51
Acer Acer –LCD-P205H
4. Black Screen and backlight turn on

52
Acer Acer –LCD-P205H
5. White Screen

53
Acer Acer –LCD-P205H

6. Bad Screen

54
Acer Acer –LCD-P205H
05 Spare parts List
ACER PART OEM PART 8201T581A070R
DESCRIPTION
NO. NO
ET.LH20C.016

PCBA,I/F
55.LH20J.002 793141300801R BOARD(EMEA,W/O),LE
20T5-812 ROHS

PCBA,P/I BOARD,W/O
19.LH20J.001 792561400700R
SPK,LE21P8-722 ROHS

PCBA,POWER
55.LGU0J.005 793121500000R KEYPAD/B,LE23T8
ROHS

PCBA,FUNCTION
55.LGU0J.006 793121500010R KEYPAD/B,LE23T8
ROHS

55
Acer Acer –LCD-P205H
PWRCORD 10A /250V
27.L46VF.006 453070800240R BLK 6FT SWISS H05VV-
F

CABLE,D-SUB 15P
50.LBQ0J.001 453010100380R MALE 6FT BLACK/BLUE,
ROH

CABLE,DVI-D 18+1P
50.LA10J.003 453030300370R MALE 6FT BLACK ,
ROHS

HRN LVDS FFC 30P

50.LH20J.001 430303002700R
177mm W/TASTE

HRN ASSY 2x4P to 8P

50.LH20J.002 430300803350R 200mm
UL1571#28,Cond

56
Acer Acer –LCD-P205H

HRN ASSY 4P 33mm

50.LH20J.003 430300400560R
UL1571#28

ASSY BACK
60.LH20J.001 714050027203R COVER,W/O AUDIO,W
DVI,SEC,LE20

ASSY FRONT
60.LH20J.002 714030030800R
BEZEL,SEC,LE20T5

ASSY POWER BUTTON

60.LH20J.003 714000008501R
LE23T8

57
Acer Acer –LCD-P205H

60.LH20J.004 714000008500R ASSY ,HINGE, LE23T8

ASSY
60.LH20J.005 714020023600R
BASE,DUAL,LE20T5

ASSY CHASSIS,W/O
60.LH20J.006 701000018903R AUDIO,W
DVI,SEC,LE20T5

LCP 20.0"LTM200KT01-
LK.20006.007 631102200680RA 604(A)(SAMSUNG)RoH
S

58
 Acer Acer –LCD-P205H
06 Schematics and Layouts
6.1 PI BD Layout

61
Acer Acer –LCD-P205H

62
Acer Acer –LCD-P205H

I/F BD Layout

63
Acer Acer –LCD-P205H

6.2 Switching Mode Power Supply circuit

64
 5 4 3 2 1

VGA5V D107 VCC4.5V

1 BAT750-LF/NC
DVI5V 3
2 R173 0/NC
R0805
Note 1 Note 2 Note 3
D101
CN101 SSM24APT/NC U101 U102
D 8P 2.0mm VCC5V VCC5V AP1084K33LA +3.3V +3.3V LD1117AL-1.8V +1.8V D
CON--JWT-A2008WV08P-1

1 DIO--SMA 3 VIN VOUT 2 3 VIN VOUT 2

+3.3V 6 +1.8V 6
2

ADJ

ADJ
3 PAD 4 PAD 4
R101
4 CCFL_ON/OFF C101 + 0 C104 + +
5 100u/16V R0805 0.1/16V C102 C105 C106 C103 C107

1
6 BRIGHTNESS 6
100u/16V 0.1/16V 0.1/16V 22u/16V 0.1/16V
7 VOLUME 6
8 MUTE 6
C162 0.1/16V

C175 0.1/16V

To Power/Inverter
Board GND GND

GND Note 5

C +3.3V Q101 Note 6 C

VCC5V AP2305GN VLCD
Note 4 2 3 VLCD 6
ZD101 R102 R103 R112
VCC5V 6V2/NC VCC_ESD 10K C108 51/NC

100u/16V
10K 0.1/16V R0603

0.1/16V
1
R105
R109
4K7

3
CCFL_ON/OFF 100K
ZD107 6V2/NC

3
R113 C111 GND 1
0

C109

C110
6 CCFL_ENABLE 1 Q103 R107

3
R0805 0.1/16V Q102

2
PMBT3904 100K
R106 1 2N7002/NC
6 PANEL_ENABLE Q104
100K

2
C112 R108 PMBT3904
1u/16V 47K

2
GND GND

B B
GND GND

Note:
1. CN101 is no locked packgae for normal model.CN101 is locked packgae for special model(Dell).
2. D101 must be co-layed with R101
3. U101 must contain TO263, TO252 and SOT223 package InnoLux MSTAR_TSUMU5PEHJ
4. ZD101 must be co-layed with R113. ZD101 is used for ESD back drive.Reserved C111 for EMI issue.
5. P/I Board High Enable. Document Number : SIZE : APPRO BY :
6. Reserved R111,R112,Q102 for panel power discharge. COMMON A4
TITLE :
A CHECK BY : A
POWER (DC TO DC)

DATE : 2008-1-30 DRAWN BY :

Rev :
SHEET 3 OF 6 V01 STONE
5 4 3 2 1
 5 4 3 2 1

CN102 Note 2
DZ11AA1-H5W6-4F
11 1 R RB101 0 R114 75 1% C113 0.047u/16V
RED+ 6
6 R0603
12 2 G RB102 0 R115 75 1% C114 0.047u/16V
GREEN+ 6
7 R0603
13 3 B RB103 0 R116 75 1% C115 0.047u/16V
BLUE+ 6
R0603

75 1%
8

75 1%

75 1%
D 14 4 VGA5V D
SOG 6
9 Note 1 C116 C117 C118
15 5 10p/50V/NC 10p/50V/NC 10p/50V/NC
10

R117

R118

R119
0/NC
R122 75 1% C119 0.047u/16V

0
RED- 6
16

17
R123 75 1% C120 0.047u/16V
GREEN- 6
R124 75 1% C121 0.047u/16V

R120

R121
BLUE- 6
VGA_DET VGA_DET
VGA_DET 6
GND Note 3
D102 D103 D104 D105

3
BAV99 BAV99 BAV99 BAV99 VCC5V VGA5V
C126 0.1/16V

2 1 2 1 2 1 2 1 Note 4
6V2

C127

1
VCC_ESD R126 D106
C122 0.1/16V C123 C124 C125 0/NC BAV70
ZD102

C C
0.1/16V/NC 0.1/16V/NC 0.1/16V/NC 0.1/16V/NC
C128
0.1/16V

3
GND GND R127 R128 R129 U103
4K7 4K7 10K AT24C02BN
R130
1K 8 VCC A0 1
7 WP A1 2
VGA_SCL R131 100 6 3
VGA_SDA R132 100 SCL A2
5 SDA GND 4

FB101
120Ω GND
R133 1K
HSYNC 6
R134 1K
VSYNC 6 WP_EDID 5,6
33p/50V

33p/50V
2K2

2K2

DDC_SCL_VGA 6
6V2

6V2

6V2

6V2

B Note 5 B
DDC_SDA_VGA 6
C131 C132
33p/50V/NC 33p/50V/NC
C129

C130
ZD103

ZD104

ZD105

ZD106

R135

R136

GND GND

Note:
1. R120 is reserved for Samsung model. InnoLux MSTAR_TSUMU5PEHJ
2. R0603 package for Bead. C116,C117,C118 are reserved for EMI or performance issue.
Document Number : SIZE : APPRO BY :
3. C122,C123,C124,C125 are reserved for ESD or EMI issue.
4. R126 is reserved for Samsung model. COMMON A4
5. C131,C132 are reserved for tuning performance issue. TITLE :
A CHECK BY : A
VGA-INPUT

DATE : 2008-1-30 STONE

DRAWN BY :
Rev :
SHEET 4 OF 6 V01
5 4 3 2 1
 5 4 3 2 1

CN201
DVI-D_CON
VCC5V DVI5V

D 1 DVI_RX2- R201 10 D
RX2- RX2- 6 Note 1
2 DVI_RX2+ R202 10
RX2+ RX2+ 6
GND 3

1
9 DVI_RX1- R203 10 R215
RX1- DVI_RX1+ RX1- 6 D201
10 R204 10 0/NC BAV70 C201
RX1+ RX1+ 6
19 0.1/16V
GND DVI_RX0- R205 10
RX0- 17 RX0- 6
18 DVI_RX0+ R206 10

3
RX0+ RX0+ 6
22 R211 R212 R213
GND DVI_RXC+ R207 10 U201
23 RXC+ 6 4K7 4K7 10K
RXC+ DVI_RXC- R208 10 AT24C02BN
RXC- 24 RXC- 6 R214
1K 8 VCC A0 1
7 WP A1 2
6 DVI_SCL R209 100 6 3
SCL DVI_SDA R210 100 SCL A2
SDA 7 5 SDA GND 4
VS 8
WP_EDID 4,6
DDC_SCL_DVI 6
5V 14 DDC_SDA_DVI 6
15 DVI_DET DVI_DET
GND DVI_DET 6
C 16 HPD_DVI HPD_DVI GND C
HP
RX4- 4
RX4+ 5
11 DVI5V
GND D202 D204 D206 D208 D210
RX3- 12
3

3
13 BAV99 BAV99 BAV99 BAV99 BAV99
RX3+ DVI5V
RX5- 20 2 1 2 1 2 1 2 1 2 1
Note 2
21

0.1/16V
RX5+ DVI5V R217 10K R218
C202 0.1/16V

C213 0.1/16V
C203 C205 C207 C209 C211 100/NC
HPD_DVI
6V2

6V2

6V2

6V2
0.1/16V 0.1/16V 0.1/16V 0.1/16V 0.1/16V
R219

3
D203 D205 D207 D209

C212
ZD201

ZD203

ZD204

ZD202
4K7
3

3
BAV99 BAV99 BAV99 BAV99 Q201 1 HPD_CTRL 6
2 1 2 1 2 1 2 1 PMBT3904

2
VCC_ESD HDCP Function
C204 C206 C208 C210
0.1/16V 0.1/16V 0.1/16V 0.1/16V GND
B B

GND

InnoLux MSTAR_TSUM5PEHJ
Note:
1. R215 is reserved for Samsung model. Document Number : SIZE : APPRO BY :
2. R218 is reserved for some model. COMMON A4
TITLE :
A CHECK BY : A
DVI-INPUT

DATE : 2008-1-30 DRAWN BY :

Rev :
SHEET 5 OF 6 V01 STONE
5 4 3 2 1
 5 4 3 2 1

+3.3V VDDP_33 Note 1 AVDD_33

FB102

60Ω +3.3V VCC5V

VDDP_33

C154 0.1/16V

C155 0.1/16V

C156 0.1/16V

C159 0.1/16V

C160 0.1/16V

C133 0.1/16V

C134 0.1/16V

C135 0.1/16V

C136 0.1/16V

C137 0.1/16V

C138 0.1/16V

C139 0.1/16V

C149 0.1/16V

C161 0.1/16V

C141 0.1/16V
AVDD_33 VDDC_18 AVDD_18

C150

10K/NC

10K/NC
+

10K

10K

10K
10K

10K

10K
10K

10K

10K
22u/16V

104
126

114

107
112

103
14
20

53
74

21

58
54

40
59
87

60
65
66
71
8
AVDD_33
AVDD_33
AVDD_33

AVDD_18

VCTRL
VDDC
VDDC
VDDC
VDDC

VDDP
VDDP
VDDP
VDDP
VDDP
VDDP
VDDP
VDDP
VDDP
VDDP
VDDP
VDDP

R150
R151
R152

R171
R172
R184
R174

R139
R140
R220

R179

R181
D GND C166 0.1/16V/NC D

GND
4 RED+ 28 RIN0P
+1.8V VDDC_18 AVDD_18 27 119 VCC5V_DET R182 20K/NC
4 RED- RIN0M GPIO_P00/SAR0/GPIO_P17/SAR0
FB105 25 120 R154 1K
4 GREEN+ GIN0P GPIO_P01/SAR1/GPIO_P00/SAR1 ADC_KEY1
24 121 R155 1K
4 GREEN- GIN0M GPIO_P02/SAR2/GPIO_P01/SAR2 ADC_KEY2
60Ω 4 SOG R159 470 C152 0.047u/16V 26 122
SOGIN0 GPIO_P03/SAR3/GPIO_P02/SAR3 LED_B_C
4 BLUE+ 23 BIN0P GPIO_P06 123 LED_A_C
C142 + 22 124
4 BLUE- BIN0M GPIO_P07 LED_G_C
22u/16V C143 C144 C145 C146 C147 4 HSYNC 32 2 R157 100
HSYNC0 GPIO_P14/PWM0 VOLUME 3
0.1/16V 0.1/16V 0.1/16V 0.1/16V 0.1/16V 4 VSYNC 33 VSYNC0 R158 100
4 DDC_SDA_VGA 34 DDCA_SDA/RS232_TX GPIO_P15 3 MUTE 3
35 4 R125 1K
4 DDC_SCL_VGA DDCA_SCL/RS232_RX GPIO_P16 KEY2
36 R160 1K
GPIO_P22/PWM1/GPIO_P23/PWM1 VGA_DET 4
5 RX2+ 9 RX2P GPIO_P44/GPIO_P41 48 HPD_CTRL 5
GND 5 RX2- 10 RX2N R153 1K
5 RX1+ 12 RX1P GPIO42/GPIO_P24 50 KEY1
13 WP_FW
5 RX1- RX1N GPIO_P24/PWM2/GPIO_P27/PWM2 51
5 Rx0+ 15 RX0P
5 RX0- 16 RX0N GPIO_P04/GPIO_P03/PWM3 73 PANEL_ENABLE 3
5 RXC+ 18 RXCKP GPIO_P25/GPIO_P12/PWM3 109 R188 CCFL_ENABLE 3
19 4K7
5 RXC- RXCKN GPIO_P13/PWM2/GPIO_P26/PWM2 125 BRIGHTNESS 3
5 DDC_SDA_DVI 5 DDCD_SDA
Note 2 6 39 SCL_OSD
5 DDC_SCL_DVI DDCD_SCL I2C_MCL/GPIO_P10
38 SDA_OSD
VCC5V AVDD_33 R144 I2C_MDA/GPIO_P11
390 1% 7 REXT R216 1K
GPIO_P43/GPIO_P42 49 DVI_DET 5
31 REFP GPIO_P45/GPIO_P04 47 WP_EDID 4,5
R161 C148 46
1u/16V GPIO_P46/GPIO_P05
2

10K 30 45 R146 1K WP_OSD

Q106 REFM GPIO_P47/GPIO_P22
1 LED_B_C
PMBT3906/NC +3.3V Note6
R162 C165
10K/NC 0.1/16V
3

R163 TSUMU58EHJ-LF-1
330/NC R189 R190 CN103
R0603 10K/NC 10K GND U108 100 RXO0- FFC-CON
LED_B R164 LVB0M
8 VCC SO 2 SDO 41 SDO LVB0P 99 RXO0+
R0603 0 7 1 SCZ 42 98 RXO1- RXO0-
WP_FW HOLD# CS# CSZ LVB1M RXO0+ 30
3 WP# SCK 6 SCK 43 SCK LVB1P 97 RXO1+
29
4 5 SDI 44 96 RXO2- RXO1-
R191 GND SI SDI LVB2M RXO2+ RXO1+ 28
LVB2P 95 27
C VCC5V R192 1K PM25LV010A-100SCE RXO2- C
10K RXOC- RXO2+ 26
LVBCKM 94 25
108 93 RXOC+
RST LVBCKP RXO3- RXOC- 24
LVB3M 92 23
R177 91 RXO3+ RXOC+
LVB3P 22
2

10K GND C157 22p/50V R147 0 128 86 RXE0- RXO3-

Q107 XIN LVA0M RXE0+ RXO3+ 21
1 LED_A_C LVA0P 85 20
PMBT3906 X101 RXE0-
R166 VCC4.5V 14.31818MHz RXE1- RXE0+ 19
LVA1M 84 18
10K R148 0 127 83 RXE1+
3

VCC4.5V XOUT LVA1P RXE1- 17

R165 C164 1u/16V C158 22p/50V
3 RXE1+ 16
330 82 RXE2-
R0603 LVA2M RXE2+ 15
102 BYPASS LVA2P 81 14
LED_A R167 C153 0.1/16V 80 RXEC- RXE2-
R0603 100/NC VDDP_33 LVACKM RXEC+ RXE2+ 13

LVA4M/GPO[6]
79

LVA4P/GPO[7]

NC/GPIO_P43
NC/GPIO_P25
LVACKP RXE3- RXEC- 12
100K

LVA3M 78 11

NC/GPO[0]
NC/GPO[2]
NC/GPO[4]
LVB4M/NC
RXEC+

LVB4P/NC
R149 10K/NC 37 77 RXE3+
VCC5V MODE LVA3P RXE3- 10
RXE3+ 9

10K

GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
Note5 8

NC
NC
NC
NC

NC
NC
NC
NC
LPIN6 7
R175

RL111 0/NC
R176 RL112 0/NC LPIN5 6

101
105
106

113

110
111
115
116
117
118
5

11
17
29
52
72
88

68
69
63
62

75
76
89
90
57
56
55
61
64
70
67
2

10K RL113 0/NC

1
4

R180
Q108 1 LED_G_C
PMBT3906 RL114 0/NC 3
R169 R0603 2
10K GND 1
3

R168
3 VLCD
330 R170 GND CON--PI-AL230C
R0603 100/NC
LED_G
R0603

PLUS-MINUS

Note4
CN105
CN104 Define for X203H FFC-CON/NC
2x4P 2.0mm
Note 3 CN107
CON--CLX-CI0108P1VDL-1

MENU 30
1 FFC-CON/NC
B KEY1 29 B
2 RIGHT/LEFT
ADC_KEY1 28 RXO0-
3 AUTO
E-color ADC_KEY2 RXO0- 27 RXO0+ 30
4 LED_B 26 29
5 LED_A RXO0+ RXO1-
LED_A 25 RXO1+ 28
6 24 27
7 LED_G RXO1- RXO2-
POWER LED_G RXO1+ 23 RXO2+ 26
8 KEY2 22 25
EP101 5P35V/NC

EP102 5P35V/NC

EP103 5P35V/NC

RXO2- 21 RXOC- 24
C167 0.1/16V

C168 0.1/16V

C169 0.1/16V

C170 0.1/16V

C171 0.1/16V

C172 0.1/16V

C173 0.1/16V
0/NC

0/NC

RXO2+ 20 RXOC+ 23
19 RXO3- 22
To Keypad 18 21
RXOC- RXO3+
Board RXOC+ 17 RXE0- 20
R193

R194

16 RXE0+ 19
RXO3- 15 18
RXO3+ 14 RXE1- 17
+3.3V 13 RXE1+ 16
12 15
GND 11 14
RXE2-
10 RXE2+ 13
R138 R137 C140 9 RXEC- 12
4K7 4K7 0.1/16V 8 RXEC+ 11
U106 7 RXE3- 10
6 RXE3+ 9
8 VCC A0 1 5 8
WP_OSD 7 2
SCL_OSD R142 100 WP A1 4 LPIN6 7
6 SCL A2 3 3 6
SDA_OSD R143 100 5 4 LPIN5
SDA GND 2 5
VLCD 1 4
AT24C16AN
GND GND 3
CON--PI-AL230C 2
3 VLCD 1
GND

CON--HR-200PHD2X15ST
FOR SINGLE LVDS INPUT

A A

Note:
1. Each bypass capacitor (0.1u/16V) must be respectively closed to pin that is DC power input of scaler IC. InnoLux MSTAR_TSUM5PEHJ
2. LED blue driving circuit is reserved for BenQ model.
3. Bypass capacitor C167,C168,C169,C170,C171,C172,C173 are for ESD and EMI issue. ESD component Document Number : SIZE : APPRO BY :
EP101,EP102,EP103 are for GPIO direct driving LED. Reserved R193&R194 for Dell 18.5W
COMMON Custom
4. CN104 is no locked packgae for normal model.CN104 is locked packgae for special model(Dell).
5. RL111,RL112,RL113,RL114 are reserved for some panel spec. TITLE :
6. CN103 is no locked packgae for normal model.CN103 is locked packgae for special model(Dell). CHECK BY :
SCALER

DATE : 2008-1-30 DRAWN BY :

Rev :
SHEET 6 OF 6 V01
5 4 3 2 1
 5 4 3 2 1

R827 56 C815
C805 330p/500V
4700p/400V T801 D804 L802 R831 +24V 3,4
SPW-132 SF50-04F69-LF 5uH ZD801 1K 2W

3
DC 380V Max. 1 D805
14 SF50-04F69-LF + 27V 2 Q801
D806 + + 2N4401
13 SF50-04F69-LF C839 C830 C818 R828
ZD803 C806 C817 270u/50V 270u/50V 0.1/50V 1K 1%

1
D801 R805 P6KE150A 4700p/400V 270u/50V R818
D + C804 68K 2W 10K D
1

BL4-06 150u/450V 2 C816

+

R816 2200p/500V
10
D802 D807 SRF10-06CT-LF +5V
3 2 9
MUR1100ERL 1
10 2 VCC5V
RMS
RMS

3 L803
-

DC 650V Max 3 R836 5uH F802

5A/125V
4

1
AC 264V

AC 264V

5 2 0R47 2W
3 + + +
D803 D808 C823 C820
+ 1N4003 11 SRF10-06CT-LF C819 1000u/10V 470u/16V C822

DC 650V Max
C807 1000u/10V 0.1/50V USB 5V
47u/25V F803
12 R829
6 10 5A/125V
L801 C836
4 3 2200p/500V

17mH

2
CN803 Q804
1 2 AP2761I C841 R822 R825
1 1 C837 C840 0.1/50V 4K7 1% 100K 1%
C
Gate +
1000u/10V
+
470u/16V C
2 C808
R802 1M Isense 47P/1KV L804 Audio VCC5V 4

3
3 R814 5uH
GND
RMS

10K C828
R801 4 4700p/400V
1M FB R832
AC 264V

5 270
GND

VDD 6
RMS

7 C826
NC R826 NC
AC 264V

8 R815 IC801 C827 10K

Vin 0R43 2W LTV817M NC
C803
0.47/275V 4 1 R820
CON8PIN NC R821
1K 1%
3 2
C821
0.1/100V

RT801 C
NTC 5R
B R B
A IC803
TLV431ALP
F801 R823 R824
3.15A/250V NC 3K3 1%

C801 C802 TO SCALER BD CN801

1000p/400V 1000p/400V C842
CN801 0.1/50V

usb5v CN802
1 USB 5V
2 1
3 VCC5V 2
4 3 usb5v
5 C825 4
6
5 4 1 2 3 7
0.1/50V
ON/OFF 3
100mm 4PR InnoLux HX2000
8 BRIGHTNESS 3
9 VOLUME 6
10 MUTE 6 Document Number : SIZE : APPRO BY :
N
L

11 HDMI_AUDIO_L 6
AC_SKT 12 HDMI_AUDIO_R 6
Custom
A A
13
P801
14 AUDIO_SW 6 TITLE :
CHECK BY :
POWER SUPPLY
14P 2.0mm

DATE : 2008-12-02 DRAWN BY :

Rev :
SHEET 2 OF 6 V01
5 4 3 2 1
 5 4 3 2 1

R849
D D
NC
R850
NC
R808
33K CN804

C810 1
0.1/50V Gate

R806 2
33K Isense

3 GND
R851
NC
4 FB
C R803 R804 C
NC NC 5 GND
6

R813 6
20 VDD
8 5
VCC

HV OUT
7 NC
7 IC802 3
NC LD7575 CS 8 HV
R809
680R
GND

1 RT COMP 2
CON8PIN

C812
4

NC R807 C809
B 220p/50V B
100K 1% C811
1000p/50V

R844
100K
C838
2.2uF InnoLux HD2202
D812
Document Number : SIZE : APPRO BY :
SN4148 A
TITLE :
CHECK BY :
A POWER Control A

DATE : 2008-12-02 DRAWN BY :

Rev :
SHEET 3 OF 6 V01
5 4 3 2 1
 5 4 3 2 1

1 H
OL1 2 L
C516 R515 CN504
10p/3KV 4100-D02
374
D D
C514 LV1
CN505 3p/3KV
5
NC 1
NC 2
3 2 CN501
GND 4100-D02
GND 4 3
DRIV 5 4 1 H
DRIV 6
7 OL2 2
+24V C517 L
+24V 8 6 8
9 7 10p/3KV R516
BRI BRIGHTNESS
EN 10 ON/OFF 374
11 LV4 LV2
LV4 LV3
LV3 12
GND 13 1
14 LV2 CN503
LV2 LV1 T501 4100-D02
C
LV1 15 C
16 OL4 SPW-102
OL4 OL3
OL3 17 1 H
18 OL2
OL2 OL1 OL3
OL1 19 2 L
+5v 20 +5V 2 2,4 +24V
C518 R517
+ 10p/3KV
CON 20PIN C501 374
270u/50V LV3
C515
3p/3KV CN502
4100-D02
1 H

FB802 OL4 2 L
C519 R518
B B
10p/3KV
374
LV4

InnoLux
Document Number : SIZE : APPRO BY :
A
TITLE :
CHECK BY :
A INVERTER SUPPLY A

DATE : 2008-12-02 DRAWN BY :

Rev :
SHEET 4 OF 6 V01
5 4 3 2 1
 5 4 3 2 1

VIN

R501
91K

3
D D
1 Q501
MMBT4401

2
2 ON/OFF 1 Q502
R502 MMBT4401
30K
C502 R503 OV21 16 OV1

2
220p/50V 91K OV2 OV1 C508
LI1 2 15 1u/16V
LI1 GND

3
LI2 3 14 1
C503 LI2 BG R506
2200p/50V 4 13 22 U501
C504 COMP VCC REF AP9971GH
2.2u/16V

2
5 FT SW 12
C509 CN506
6 11 C513 2.2u/25V 20
R505 FSET TG C506 0.1/50V NC
19 NC
C 110K 1% 7 10 0.047/50V 18 C
REF BOSC BT C510 GND
17 GND
8 9 2.2u/25V 16
2 BRIGHTNESS DBRT VIN DRIV
R504 15 DRIV

3
10K 1 C511 14
C505 IC501 R507 U502 NC +24V
13 +24V
220p/50V MP1009 C507 R508 22 AP9971GH 12
0.1/50V 100 BRIGHTNESS BRI
ON/OFF 11 EN
LV4

2
10 LV4
LV3 9 LV3
8 GND
LV2 7
LV1 LV2
6 LV1
OL4 5
C523 C522 OL3 4 OL4
3900p/50V 3900p/50V C521 OL2 3 OL3
3900p/50V C520 OL1 2 OL2
3900p/50V OL1
1 +5V
R511
2 OL3 1 LV1 10K
B LI1 3 OV1 3 CON 20PIN B
1 OL1 2 LV3
R509 D503 R527 R512
2K BAW56 2K D501 10K REF
BAV70

R513
2 OL4 1 LV2 10K
LI2 3 OV2 3
1 OL2 2 LV4
R510 D504 R528 R514
2K BAW56 2K D502 10K
BAV70 InnoLux
Document Number : SIZE : APPRO BY :
A4
TITLE :
A CHECK BY : A
Inverter control

DATE : 2008-12-02 DRAWN BY :

Rev :
SHEET 5 OF 6 V01
5 4 3 2 1
 5 4 3 2 1

D D

CN901
POWER
LED_G 1
GND 2
LED_A 3
4
4P 1.25mm SMD
Pitch=1.25mm

C C

6V2
5P20V

PCB Footprint same PX193W keypad

1 1

ZD101
LED901
SW901 Y/B
EP901

2
2

POWER

B B

InnoLux P235H/205H keypad

Document Number : SIZE : APPRO BY :
A
TITLE :
CHECK BY :
A Keypad A

DATE : 2008-2-03 DRAWN BY :

Rev :
SHEET 3 OF 3 V01
5 4 3 2 1
 5 Note3 4 Note: 3 2 1
Note1 1. Shut down control for BA20550, Logic low is placed on

25
C751 U751 C752
0.1/16V 0.1/16V
this terminal for shut down mode, Logic high is placed on
1 24

HEATSINK
LINN RINN this terminal for normal operation
C753 2 23 C754 0.1/16V
AL_in LINP RINP AR_in 2. Low-ESR capacitors are recommended throughout this
0.1/16V
shutdown 3 22 C755 application section.
SHUTDOWN BYPASS 1u/16V
4 21 Audio5V 3. Bypass capacitor >=10*Ci (input capacitor)
Audio5V PVDD_A PVDD_A C758 4.You can use 22uH inductorhere instead of using BEAD to
C756 C757 5 20 C759
LOUT_P LOUTP ROUTP ROUT_P achieve better sound quality.
10u/10V 0.1/16V 0.1/16V 10u/10V
6 19 5.If inductor 22uH is used, the filter Cs should be
D 7
PVSS_A PVSS_A
18 changed:C725, C719, C722, C723: 0.1uFC720, C724: 0.47uF
D
PVSS_A PVSS_A
8 17
6.Add EP701~EP706,R717,R718,Q702
LOUT_N LOUTN ROUTN ROUT_N
9 PVDD_A PVDD_A 16

10 COSC NC 15

C760 11 14 R751 10K

ROSC VOLUME VOL
220p/25V Audio5V C761
R752

C763

47K R753
12 VSS VDD 13
1uF/10V C762
Audio5V
120K

BA20550-SSOP24 0.1/16V
1uF/10V

10K
Note5 Note6 C764
0.1/16V CN751
2*8P 2.54mm 90°Power Board

FB751
600Ω 2A R_OUT- 15 16 L_OUT-
ROUT- LOUT-

R754
ROUT_N R_OUT- R_OUT+ 13 L_OUT+
ROUT+ LOUT+ 14
R755
5P35V

C765 AR 11 12 AR shutdown
330p/50V AR AR
AL 9 10 AL 0/NC
AL AL

3
C AL R756 33K MUTE
C
EP752

AL_in 7 EO_R SHUT 8 1

5 6 VOL Q751
C766 AR R757 33K EO_L VOL PMBT3904

2
AR_in
470p/50V

EP751 5P35V/NC

EP754 5P35V/NC
3 Hp/Sp AGND 4
4700p/50V
5P35V

10K

10K
4700p/50V
GND 1 2 Audio5V
GND +5V

FB752 C767
EP753

600Ω 2A 330p/50V
C768

R758

R759
C769
ROUT_P R_OUT+

FB753
600Ω 2A
LOUT_P L_OUT+
5P35V

C770
330p/50V
EP755

C771
470p/50V
B B
5P35V

FB754 C772
EP756

600Ω 2A 330p/50V
LOUT_N L_OUT-

InnoLux BenQ 15W

Document Number : SIZE : APPRO BY :
A A3
A
TITLE :
CHECK BY :
BA20550/TI2008 SCH

DATE : 2008-01-03 DRAWN BY :

Rev :
SHEET 1 OF 4 V01
5 4 3 2 1
 5 4 3 2 1

D D

CN902 CN901
POWER
4 LED_G 1
3 GND GND 2
2 LED_A LED_A 3
1 E-Color 4
AUTO 5

SW TACT

SW TACT
4P 1.5mm 90° R901 2K2 RIGHT/LEFT 6

SW TACT

SW TACT

SW TACT
MENU 7

5P20V
8

5P20V

5P20V
5P20V

5P20V
C C
8P 1.5mm 90°

1
Pitch=1.5mm

1
SW905 2

SW904 2
EP905

SW903 2

SW902 2

SW901
EP904

EP902
EP903

EP901
E-color AUTO MENU RIGHT LEFT

B B

InnoLux P235H/205H keypad

Document Number : SIZE : APPRO BY :
A4
A TITLE : A
CHECK BY :
KEYPAD

DATE : 2009-02-05 DRAWN BY :

Rev :
SHEET 2 OF 3 V01
5 4 3 2 1
 Acer Acer –LCD-P205H
07 Assembly and Disassembly
The tool of Assembly and disassembly: 1) Electrostatic gloves 2) Electric screwdriver: the length of screwdriver top is 6±0.5cm and
15±0.5cm ; the diameter of screwdriver top is Φ5*H5mm
Sequence Item Photo Procedures PN Description

1.Take panel out of box and place it on the

foam;
2.Tear open the PE bag and put it in the
LCP
designated carton;
631102200680R 20.0"LTM200KT01-
S1 Place panel 3. Place panel on the foma like the
A 604(A)(SAMSUNG)
attached picture.
RoHS
Remark: Do not touch the lamp cord and
place the surface of panel doansides on
the cushion.

1.Take aluminum foil to stick it on the

position near to keypad as attached fipture
Assemble front ASSY FRONT
S2 （Stick from the low-side of PANEL） 714030030800R
bezel BEZEL,SEC,LE20T5
2.Fix front bezel on the panel and make
sure to fix it well.

FFC Cable
1.PCBA,I/F
BOARD(EMEA,W /O
Keypad 1. Take FFC cable & main board, check 1.793141300801
),LE20T5-812 ROHS
cable the board if OK; R
Insert FFC 2.HRN LVDS FFC
2. Insert FFC cables into designated 2.430303002700
S3 cable into 30P 177mm
location ; R
mainboard W/TASTE
3. Take 8P keypad LVDS cable to insert it 3.430300803350
3.HRN ASSY 2x4P
into desiganted location well. R
to 8P 200mm
UL1571#28,Cond

65
Acer Acer –LCD-P205H
Assembly and Disassembly (continue)

ASSY
Assemble
Place the chassis on the cushion after CHASSIS,W/O
S4 chassis and PI 701000018903R
check, like the attached picture AUDIO,W
board
DVI,SEC,LE20T5

PCBA,P/I
Assemble Insert power board into the designated
BOARD,W /O
S5 chassis and PI location of chassis, like the attached 792561400700R
SPK,LE21P8-722
board picture.
ROHS

Connect main link mainboard HRN ASSY 2x4P to

and P/I board Connect powerboard with the relevant PIN
S6 board and 430300803350R 8P 200mm
in the mainboard like the attached picture.
power board UL1571#28,Cond

Fix keypad Press mainboard, fix keypad cable into the

S7
cable hook as attached picture

66
Acer Acer –LCD-P205H
Assembly and Disassembly (continue)

Take 5PCs M3*6 screws to fix powerboard

S8 Fix powerboard
as attached picture.

Take1PC M3*6 screw to fix maindboard as

S9 Fix mainboard
attached picture.

1. Handle hexagonal screws and electric

4 opener;
Twist 1 2 3
2. Twist screw in the interface as attached
S10 hexagonal
picture;
screws
3. Place cushion on the designated
location after iron frame is taken away.

Reverse chassis 180degree and fix

S11 Fix chassis chassis into bezel hook as attached
picture.

67
Acer Acer –LCD-P205H
Assembly and Disassembly (continue)

1. Insert FFC cable into desiganted

Insert FFC
S12 connector and use jig to insert it;;
cable
2. Tear off foil to stick the cable for fix.

Insert 4pcs lamp wire into the relevant

Insert lamp position and make sure the red one is on
S13
wire the left and the blue is on the right as
attached picture.

1.PCBA,FUNCTION
1.793121500010 KEYPAD/B,LE23T8
R ROHS
2.793121500000 2.PCBA,POWER
Connect
Connect keypad with power control as the R KEYPAD/B,LE23T8
S14 keypad with
picture 3.430300400560 ROHS
power control
R 3.HRN ASSY 4P
4.714000008501 33mm UL1571#28
R 4.ASSY POWER
BUTTON LE23T8

PCBA,POWER
Assemble
S15 Assemble keypad board as the picture 793121500000R KEYPAD/B,LE23T8
keypad board
ROHS

68
Acer Acer –LCD-P205H

Assembly and Disassembly (continue)

be sure the
Put the cable in
S16 cable in the Put the cable in the position as the picture
the position
ii

ASSY BACK
Buckle back cover according to the
Assemble back COVER,W /O
S17 sequence as attached picture and check if 714050027203R
cover AUDIO,W
the cover is fixed properly.
DVI,SEC,LE20

Place stand on the location and take 4pcs

ASSY
S18 Fix stand M4*8 screws to lock the stand as attched 714010011500R
STAND,LE23T8
picture

Release monitor the packing like and pack

S19 Packing
it like attached picture

69