Service Manual: Viewsonic Vx2433Wm-1 Vx2433Wm-Cn
Service Manual: Viewsonic Vx2433Wm-1 Vx2433Wm-Cn
Service Manual: Viewsonic Vx2433Wm-1 Vx2433Wm-Cn
ViewSonic VX2433wm-1
VX2433wm-CN
Model No. VS12324
23.6” Wide Color TFT LCD Display
Disclaimer
ViewSonic makes no representations or warranties, either expressed or implied, with respect to
the contents hereof and specifically disclaims any warranty of merchantability or fitness for any
particular purpose. Further, ViewSonic reserves the right to revise this publication and to make
changes from time to time in the contents hereof without obligation of ViewSonic to notify any
person of such revision or changes.
Trademarks
Optiquest is a registered trademark of ViewSonic Corporation.
ViewSonic is a registered trademark of ViewSonic Corporation.
All other trademarks used within this document are the property of their respective owners.
Revision History
Revision SM Editing Date ECR Number Description of Changes Editor
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TABLE OF CONTENTS
2. Specification ....................................................................................................................... 4
5. Adjusting Procedure.......................................................................................................... 27
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1. Precautions and Safety Notices
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.
WARNINGS:
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 Use only the special power adapter that comes with this monitor for power input.
z Do not try to repair the monitor by yourself, as it contains no user-serviceable parts. Only the
qualified technician can repair it.
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 glass screen.
z Do not place heavy objects on the monitor or power cord.
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.
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Handling and Placing Methods
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2. Specification
2.1 INTRODUCTION
1 LCD PANEL Panel: ʳ CMO (M236H1-L01 ver0.0)
Backlight 4 CCFL
Fh = 24 – 83 kHz ; Fv = 50 – 76 Hz
5
AUDIO Speaker 2W*2
ʳ ʳ ʳ ʳ Digital DVI-D
Conserve 30 W (typ.)
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8 ERGONOMICS Tilt Range ʳ 20 ~ -5 degrees
Swivel N/A
Rotation N/A
ʳ [ 1 ] [ 2 ] [ź] [Ÿ]
ʳ Contrast/Brightness
Input Select
Audio Adjust
Volume, Mute
Color Adjust
Information
Setup Menu
ʳ ʳ
[ 1 ] : Main Menu
[ 2 ] : Input Select
[Dn] ( Keep pushing 5 sec) ΚUnder HDMI mode, toggle audio source
[Up] + [Dn] :
2. In the Audio menu, Recall both of audio volume and mute to default
* While OSD menu off, recall CR/ BT/ Audio volume and mute to default
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without OSD message.
CONDITION
13 DIMENSIONS Physical: Display w/ Stand 572 mm (W) x 418 mm (H) x 231mm (D)
Gross 7.05kg(15.53lb)
“Off” Љ 0.5 W
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UPC Code 20' 76690732861 5
40'
VX2433wm-CN R8W
HD,HDMI
Audio Cable
VGA Cable
DVI Cable
page)
ViewSonic Wizard
CD-ROM
Pallet --
Poly-wood, 13.6 kg
Note : P model must use Plywood. And for every P model lot, SI shall provide plywood certification.
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2.2 PRODUCT DEFINITION AND SPECIFICATION
Product Name ViewSonic VX2433wm
Oracle P/N VX2433WM/VX2433WM-CN
Model Number VS12324
English, French, German,Italian, Spanish, Finnish,
OSD Languages: 11
Russian Japanese, Korean, S. Chinese, T. Chinese
TFT LCD Panel and Model # 1st panel: CMO M236H1-L01
Scalar Novatek NT68672
Input Signal D-Sub / DVI-D/HDMI
Sync Compatibility Separate Sync/ Composite Sync / SOG
Adapter Internal Power Board
Power Cable Yes
Analog Cable (1.8 m, black), with PC 2001 and Hot Plug
Yes
Detect &DDC
DVI-D Cable(1.8m, black) with PC 2001 Yes
Audio Cable(1.8m, black) with PC 2001 No
MIC Cable(1.8m, black) with PC 2001 No
USB Cable (V2.0) No
English, French, German, Dutch, Finnish, Swedish,
Italian, Spanish, Greek, Russian, Czech, Hungarian,
Turkish, Polish, Romania. Bulgaria, Slovakia, Croatia,
ViewSonic CD Wizard
Serbia, Slovenian, Portuguese, Arabic, Japanese,
Simplified Chinese, Traditional Chinese. Korean ,
Ukrainian
English, French, German, Dutch, Finnish, Swedish,
Italian, Spanish, Greek, Russian, Czech, Hungarian,
ViewSonic Quick Start Guide Turkish, Polish, Romania. Bulgaria, Slovakia, Croatia,
Serbia, Slovenian, Portuguese, Arabic, Japanese,
Simplified Chinese, Traditional Chinese. Korean
Screen Protector Mylar Yes
Energy Star Sticker No
POP Sticker Yes
Service Insert For Region code = M units only
Warranty Card For Region code = G units only
Carton Sticker For Region code = G units only
PE bag of Carton For Region code = G units only
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2.3 GENERAL SPECIFICATION
Test Resolution & Frequency 1920x1080 @ 60Hz
Test Image Size Full Size
Factory Default:
Contrast and Brightness Controls
Contrast = 70%, Brightness = 100%
Refer to Appendix A;
Video Cable Connector Pin out
Compliant DDC/2B and DDC/CI
Video RGB (Analog)
Video Signals Separate Sync / Composite Sync / SOG
TMDS (Digital)
Video Impedance 75 Ohms (Analog), 100 Ohms (Digital)
Maximum PC Video Signal 950 mV with no damage to monitor
Maximum Mac Video Signal 1250 mV with no damage to monitor
Sync Signals TTL
Compliant with Revision 1.3;
DDC 2B
The DDC communication shall not interrupt when power off.
Compliant with Revision 1.1;
DDC/CI
The DDC communication shall not interrupt when power off.
Digital link protection HDCP
Sync Compatibility Separate Sync / Composite Sync / SOG
Shall be compatible with all PC type computers, Macintosh
Video Compatibility computers, and after
market video cards
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2.5 POWER SUPPLY
Internal Power Supply ILPI-107
Input Voltage Range 90 to 264 VAC
Input Frequency Range 47 to 63 Hertz
Short Circuit Protection Output can be shorted without safety issue
5.0A typical at 24VDC
Over Current Protection
( Protect when short circuit)
Leakage Current 3.5MA (MAX) AT 264VAC / 60HZ
Typical: 80%
Efficiency (at 115VAC Full Load)
Minimum: 75%
Fuse Internal and not user replaceable
Power Output 45 Watts (typ)
Ripple:<3%
Ripple and Noise
Noise: <1%
Max Input AC Current 1.5A (MAX)
80 A MAX./ 240VAC / 50HZ
Inrush Current (Cold Start)
(COLD START AT 25к,FULL LOAD)
Shall start and function properly when under full load, with all
Power Supply Cold Start combinations of input voltage, input frequency, and operating
temperature.
Shall be able to withstand an ANSI/IEEE C62.41-1980 6000V 200
Power Supply Transient Immunity
ampere ring wave transient test with no damage.
Shall be able to withstand ±1KV (L-L) and ±2KV (L-PE)
Power Supply Line Surge Immunity (Refer to EN55024:1998 / CISPR24.1997 / IEC1000-4-5: 1995 /
EN61000-4-5: 1995)
Shall be able to function properly, without reset or visible screen
Power Supply Missing Cycle Immunity artifacts, when ½ cycle of AC power is randomly missing at nominal
input.
The power supply shall not produce audible noise that would be
detectable by the user. Audible shall defined to be in compliance with
Power Supply Acoustics
ISO 7779 (DIN EN27779:1991) Noise measurements of machines
acoustics. Power Switch noise shall not be considered.
Power Saving Operation(Method) VESA DPMS Signaling
Power
Mode LED
Consumption
45W(typ)
On BLUE
Power Consumption 55W(max)
ECO Mode Blue 37W (Optimize)
30 W (Conserve)
Active off Amber <1 W
Off Off <0.5W
Recovery Time On Mode = N/A, Active Off < 3 sec
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2.6 ELECTRICAL REQUIREMENT
Horizontal / Vertical Frequency
Horizontal Frequency 24 – 83 kHz
Vertical Refresh Rate 50 –76* Hz
Maximum Pixel Clock Analog : 205 MHz
Digital : 175 MHz
Sync Polarity Independent of sync polarity
Timing Table
Digital - TMDS
Analog
Composite
Separated
Item Timing Remark
SOG
1 640 x 350 @ 70 Hz, 31.5 KHz v v v v DMT
2 640 x 400 @ 60 Hz, 31.5 KHz v v v v DMT
3 640 x 400 @ 70 Hz, 31.5 KHz v v v v DMT
4 640 x 480 @ 50 Hz, 24.7 KHz v v v v CVT
5 640 x 480 @ 60 Hz, 31.5 KHz v v v v DMT
6 640 x 480 @ 67 Hz, 35 KHz v v v v For MAC
7 640 x 480 @ 72 Hz, 37.9 KHz v v v v DMT
8 640 x 480 @ 75 Hz, 37.5 KHz v v v v DMT
9 720 x 400 @ 70 Hz, 31.5 KHz v v v v DMT
10 720 x 480 @ 60 Hz, 31.5 KHz v v v v DTV
11 720 x 576 @ 50 Hz, 31.3 KHz v v v v DTV
12 800 x 600 @ 56 Hz, 35.1 KHz v v v v DMT
13 800 x 600 @ 60 Hz, 37.9 KHz v v v v DMT
14 800 x 600 @ 72 Hz, 48.1 KHz v v v v DMT
15 800 x 600 @ 75 Hz, 46.9 KHz v v v v DMT
16 832 x 624 @ 75 Hz, 49.7 KHz v v v v MAC
17 1024 x 768 @ 50 Hz, 39.6 KHz v v v v CVT
18 1024 x 768 @ 60 Hz, 48.4 KHz v v v v DMT
19 1024 x 768 @ 70 Hz, 56.5 KHz v v v v DMT
20 1024 x 768 @ 72 Hz, 58.1 KHz v v v v DMT
21 1024 x 768 @ 75 Hz, 60 KHz v v v v DMT
22 1024 x 768 @ 75 Hz, 60.2 KHz v v v v For MAC
23 1152 x 864 @ 75 Hz, 67.5 KHz v v v v DMT
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24 1152 x 870 @ 75 Hz, 68.7 KHz v v v v For MAC
25 1152 x 900 @ 67 Hz, 62.5 KHz v v v v For SUN
26 1280 x 720 @ 50 Hz, 37.5 KHz v v v v DTV
27 1280 x 720 @ 60 Hz, 45 KHz v v v v DTV
28 1280 x 768 @ 50 Hz, 39.6 KHz v v v v DMT;
29 1280 x 768 @ 60 Hz, 47.8 KHz v v v v DMT;
30 1280 x 768 @ 75 Hz, 60.3 KHz v v v v DMT;
31 1280 x 960 @ 50 Hz, 49.4 KHz v v v v DMT
32 1280 x 960 @ 60 Hz, 60.0 KHz v v v v DMT
33 1280 x 960 @ 75 Hz, 75.2 KHz v v v v DMT
34 1280 x 1024 @ 50 Hz, 52.7 KHz v v v v DMT
35 1280 x 1024 @ 60 Hz, 64 KHz v v v v DMT
36 1280 x 1024 @ 75 Hz, 80 KHz v v v v DMT
37 1360 x 768 @ 60 Hz 47.7 kHz v v v v DMT
38 1440 x 900 @ 60 Hz 55.9 KHz v v v v DMT
39 1440 x 900 @ 75 Hz 70.6 KHz v v v v DMT
40 1400 x 1050 @ 60 Hz 65.3 KHz v v v v DMT
41 1400 x 1050 @ 75 Hz 82.3 KHz v v v v DMT
42 1600 x 1200 @ 60 Hz 75.0 KHz v v v v DMT
43 1680 x 1050 @ 60 Hz 64.7 KHz v v v v DMT
44 1680 x 1050 @ 60 Hz 65.3 KHz v v v v DMT
45 1920x1080 @ 60 Hz 67.5 KHz v v v v DMT
46 480i @ 60 Hz v
47 480p @ 60 Hz v v
48 576i @ 50 Hz v
49 576p @ 50 Hz v v
50 720p @ 50 Hz v v
51 720p @ 60 Hz v v
52 1080i @ 50 Hz v
53 1080i @ 60 Hz v
54 1080p @ 50 Hz v v
55 1080p @ 60 Hz v v
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Primary Presets
1920x1080 @ 60Hz
User Presets
Number of User Presets (recognized timings) Available: 10 presets total in FIFO configuration
Changing Modes
ϥʳ Maximum Mode Change Blank Time for image stability : 3 seconds (Max), excluding “Auto
Adjust” time
ϥʳ It should recall factory setting when execute Auto Image Adjust function by following
conditions,
1. Memory recall under DOS mode (640 x 350, 720 x 400 & 640 x 400).
2. New timing mode detected under DOS mode (640 x 350, 720 x 400 & 640 x 400).
ϥʳ The monitor needs to do “Auto Adjust” the first time a new mode is detected
(see section “0-Touch™ Function Actions”)
ϥʳ While running Change Mode, Auto Adjust or Memory Recall, the image shall blank
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3. Front Panel Function Control Description
3.1 FRONT PANEL HARDWARE CONTROLS
Power Switch (Front Head) AC Power Switch on the back cover
Soft Power Switch on the front bezel
Power LED (Front Head) Blue – ON
Amber – Active Off
Dark = Soft Power Switch OFF
Front Panel Controls (Head) [ ] Power
[ 1 ] [ 2 ] [ ] [ź] [Ÿ] [ 1 ] BUTTON 1
[ 2 ] Button 2
[Ÿ] UP ARROW BUTTON
[ź] DOWN ARROW BUTTON
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When switch to AUDIO IN (earphone jack)
[ź]+ [Ÿ] 1. In the CR/ BT menu, Recall Contrast or Brightness to default in its
menu without OSD message.
2. In the Audio menu, Recall both of audio volume and mute to default
without OSD message.
* While OSD menu off, recall CR/ BT/ Audio volume and mute to default
without OSD message
[1] + [2] Toggle 720x400 and 640x400 mode when input 720x400 or 640x400 mode
(Image = no blanking)
3. Recommend environment
3.1. Optical (Best) input timing = 640 x 480 @ 60Hz;
Following timing modes also recommended,
800 x 600 @ 60 Hz
1024 X 768 @ 60 Hz
3.2. Pattern as below,
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When switch to DDC/CI
Default = DDC/CI
Signal + [2] + [ ] Factory Mode
Remark : All the short cuts function are only available while OSD off
1. Background = blanking
2. The message OSD position is at
the center.
3. After auto tune, OSD shall be off
4. Only for analog mode 4. Only for
analog mode
Contrast/Brightness Contrast ʳ
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Jump to Contrast OSD directly Contrast
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2. Key button definition: Step 3: Show on Input Message
[1]: Back to previous OSD status OSD at the right-top corner of
[2]: Change to the selected input screen for 1 second.
port
[Up]: Move up the slider
[Dn]: Move down the slider DVI
HDMI PC
HDMI PC
HDMI AV
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1. Target video input port = HDMI
AV
2. If signal detected from target
port, change to target port.
3. If no signal detected from target
port, keep existing input port.
Step 3: Show on Input Message
OSD at the right-top corner of
screen for 1 second.
HDMI AV
2. Default = 50
1. The selected icon in Mute will be [Up]: Increase the volume setting
9300K ʳ
Change Color setting to 9300K
7500K
Change Color setting to 7500K
6500K ʳ
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1. Show on existing input port by red Change Color setting to 6500K
color 5000K ʳ
Change Color setting to 5000K
2. Default = 6500K User Color Red
2. Default = 100
Blue
2. Default = 100
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[Up]: Increase the OSD value setting
Information ʳ ʳ
PC timing – Display Resolution
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(When push the button on the 2. Key button definition:
bottom position, the slider shall go [1]: Back to Manual Image Adjust OSD
down to the top item [2]: Change to Horizontal Position OSD
2. Under Digital mode, all the H./V. [Up]: Increase the OSD value setting
Position, Horizontal Size and Fine [Dn]: Decrease the OSD value
Tune shall be disabled with gray Horizontal Size ʳ
color. And it should not be selected.
Fine Tune
OSD
[Up]: Increase the OSD value setting
Sharpness ʳ
(0,25,50,75,100)
2. Default = 50
OSD
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[Dn]: Decrease the OSD value
Dynamic Contrast ʳ
Swap on and off the Dynamic Contrast
function
Default = Off
1. Brightness/Contrast menu
Time setting.
3. Default = Advanced
Advanced
Ultra Fast
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( faster than level 1)
Full Screen
Fill screen with panel native aspect ratio.
Mode setting.
disable.
mode
YUV Mode
1. This function toggles RGB and YUV Set color space to YUV mode for HD timing
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setting by red color
Mode setting.
setting separately.
mode change.
Optimize
OSD adjust range = 0 to 100
Conserve
1. This function toggles ECO mode.
OSD adjust range = 0 to 100
2. Show on existing ECO Mode setting
by red color
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Mode setting.
4. Default = Standard
change.
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Setup Menu Language Select English
Set OSD language to English and
French
Set OSD language to French and
German
1. Key button definition: Set OSD language to German and
[1]: Back to Main Menu OSD 1. Show on existing input port by red keep in Language Select OSD
[2]: Execute the selected function color Spanish
[Up]: Rolling up the slider 2. Key button definition: Set OSD language to Spanish and
(When push the button on the top [1]: Back to previous OSD status keep in Language Select OSD
position, the slider shall go down [2]: Change to the selected language Italian
to the bottom item) setting Set OSD language to Italian and
[Dn]: Rolling down the slider [Up]: Scroll up the slider keep in Language Select OSD
(When push the button on the (When push the button on the top Finnish
bottom position, the slider shall position, the slider shall go down to Set OSD language to Finnish and
go down to the top item) the bottom item keep in Language Select OSD
[Dn]: Scroll down the slider
Russian
2. When Resolution Notice / OSD (When push the button on the
Background / is selected, the Set OSD language to Russian and
right side description will bottom position, the slider shall go
keep in Language Select OSD
change to “[ 2 ]: ;/
” down to the top item
Japanese
Set OSD language to Japanese
Korean
Set OSD language to Korean and
Simplified Chinese
Set OSD language to Simplified
Select OSD
Traditional Chinese
Set OSD language to Traditional
Select OSD
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Resolution Notice ʳ
Swap on and off the Resolution Notice
function
2. Default = 50
OSD
value
OSD V. Position
2. Default = 50
OSD
value
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OSD Time Out 5
Set OSD Time Out to 5 Seconds
15
Set OSD Time Out to 15 Seconds
1. Adjust range = 5, 15, 30, 60 30
2. Default = 15 Set OSD Time Out to 30 Seconds
3. Key button definition: 60
[1]: Back to Setup Menu OSD Set OSD Time Out to 60 Seconds
[Up]: Increase the OSD value setting
setting
OSD Background ʳ
Swap on and off the OSD Background
; = Non-transparent
= Transparent
Sleep 30 Minutes
Set time before going to Sleep
mode = 30 Minutes
45 Minutes
Set time before going to Sleep
mode = 45 Minutes
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(When push the button on the
Memory Recall ʳ
1. Background = blanking
Color)
Input Priority
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3.4 OSD LOCK SHORT CUTS FUNCTION FOR THE BUTTONS
The OSD lock will be activated by pressing the front panel control buttons [1] + [Ÿ] for 10
seconds *1. If the user then tries to access the OSD by pressing any of the buttons, a
message will appear on the screen for 3 seconds showing "OSD Locked" *2. The OSD
lock will be deactivated by pressing the front panel control buttons [1] + [Ÿ] again for 10
seconds*3.
Range = 0 to 10
Range = 0 to 10
*4 When the OSD is locked will lock all functions, including “Volume”, “Mute” and others.
*5 Status bar indicating OSD Lock or Unlock is in progress and when complete it will indicate “OSD
Locked” or “OSD Unlocked” for 3 seconds as below,
OSD Locked
OSD Unlocked
*6 When OSD appears on screen, the OSD Lock/Unlock short cut key will be disabled.
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3.5 POWER LOCK SHORT CUTS FUNCTION FOR THE BUTTONS
The Power lock will be activated by pressing the front panel control buttons [1] + [ź] for 10
seconds *1. Locking the power button means that the user won't be able to turn off the LCD while
the power button is locked. If the user presses the power button while it is locked, a message will
appear on the screen for 3 seconds showing "Power Button Locked" *2. It also means that with
the power button locked, the LCD would automatically turn back "On" when power is restored
after a power failure. If the power button is not in the locked mode, then power should return to
it's previous state when power is restored after a power failure. The Power lock will be
deactivated by pressing the front panel control buttons [1] + [ź] again for 10 seconds*3.
Range = 0 to 10
Range = 0 to 10
*4 When the OSD is locked will lock all functions, including “Volume”, “Mute” and others.
*5 Status bar indicating Power Button Lock or Unlock is in progress and when complete it will
indicate “Power Button Locked” or “Button Unlocked” for 3 seconds as below,
Power Button Locked
*6 When OSD appears on screen, the OSD Lock/Unlock short cut key will be disabled
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3.6 RESOLUTION NOTICE ACTIONS
1. Resolution Notice OSD should show on screen after changing to non-native mode for 30 sec
1. If the timing is over spec (Fh, Fv or dot clock), the image shall be blanking, and OSD background shall be
non-transparent.
2. If the timing is inspect but not defined, the image shall be non-blanking.
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3.10 NO SIGNAL FOR D-SUB / DVI
While no signal is detected for D-Sub and DVI, the following OSD message shall shows on 3 seconds then go in to
power saving.
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Packing For Shipping And Disassembly Procedure
Figure 1 Figure 2
Put the cushions on the monitor.
Place the monitor into the carton and then put all the accessories into the carton. At last, close the carton
and seal it with tape. (Figure 3)
Moniter Head
VGA cable
Power cord
Base
Figure 3
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Disassembly Procedure
BASE
STAND
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BACKCOVER
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PANEL
BEZEL
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KEYPAD
CHASIS
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POWER BOARD
LVD CABLE
SHORT KEYPAD-CABLE
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IF BOARD
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4. Circuit Description
4.1 Switching Mode Power Supply
4.3.1 AC Current Input Circuit
P801 is a connector for connecting AC Power. F801 is a fuse to protect all the circuit. AC input
voltage is from 90v to 264V. R801,R831 and R802 joined between two inputting main circuit to
prevent man from shock. L801 is used to clear up low frequency wave. C801 and C802 are used to
discharge the waves that L801 produced. High frequency waves are damped by C801 and C802.
D801 is a rectifier which composed of 4 build-in diodes, it inverts AC to DC.
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4.2 Inverter Circuit
1. R503, ZD501, R502, Q501 components convert +14V voltage into +5.0V voltage, and the voltage
supply to IC501. The extra PWM pulse signal (BRIGHTNESS signal) input to control IC through R512,
R514, C510, The LCT pin is set to a DC voltage of 0.7V by using a resistor divider(R507, R516), change
the duty of PWM pulse, will regulate the lamp current. The ON/OFF voltage connect to pin10 of IC501
through D501, R501, A voltage of 2V to pin10 of IC501 enables the IC and activates the striking timer.
The SSTCMP pin of IC501 performs the soft function, the C511 set the time of SST. The operation
frequency determined by external capacitor C512, C521 and resistor R508 connected at CT pin of IC501.
C515 connect the TIMER pin of IC501, the capacitor to set striking time and shunt down delay time.
DRV!, DRV2 output for power MOSFET U501, U502.
2. OZ9938 provides two drive signals for U501, U502, and they work in push pull topology driving, two
transformers are connected in parallel with each transformer driving two lamps in series. Turning each
N-Channel MOSFET “on/off” complementarily, produces an alternating current through the transformer
primary and secondary. The “on” duration of the switches determines the amount of energy delivered to
the CCFLs. R504, C504, R505, C505, R532, C529, R530, C522 are snubber networks, they suppress
Voltage transient spike in drain of power MOSFET.
3. R506, R510, C509, C513, C514, R525, R531, C528, C525, and C527 are connected between high
voltage output connector and ground, the divided AC voltage is inverted DC voltage through D502, D503,
D508, and D509. The sense voltage feed back to VSEN (pin 6 of IC501) for an over voltage/over current
condition during normal operation. R528, R533 are current sense resistor, current sense signal feed back
to Isense (pin 5 of IC501) for lamp “ON” detection.
4.3 I/F Board Circuit
4.3.1 Power Input
+5V is from the power board and supply for U101(FSP2160-3.3V)ΡU105(NT68672UMFG) and panel.
+3.3V output is generated from +5V through C102 filtering, and U101 outputs. +3.3V is used for U108 U105
(NT68672UMFG). +1.2V output is generated from +3.3V through U102 outputs. +1.2V is only used for Scaler
NT68672..
4.3.2 Scaler(NT68672UMFG)
1.) NT68672: The NT68673UMFG is a highly integrated flat panel display controller that
interfaces analog and digital inputs. It combines a triple ADC, a HDMI 1.3 receiver, a high
quality zoom and shrink engine, a multi-color on screen display (OSD) controller and many other
functions in a single chip. It provides the user with a simple, flexible and cost-effective solution
for various flat panel display products.
The NT68673UMFG operates at frequencies up to 205MHz, suitable for LCD monitor up to
WUXGA resolution. The NT68673UMFG also has a built-in 2D noise reduction function to
provide more stable video quality, spread spectrum to provide low EMI solution, sRGB for video
color space convert and post pattern for manufacture test.
The display provided single/double pixel clock LVDS interface.
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In addition, NT68673UMFG includes an integrated 8-Bit Microcontroller (MCU). It contains an
8-bit 8031 micro-controller, 5,120-bytes internal data memory, eight 7-bit resolution A/D
Converter, 10- channel 8-bit resolution PWM DAC, two16-bit timer/counters, and a UART.
Except those, it has two channel hardware DDC solution, and VESA 2Bi/2B+ master/slave I2C
bus interface. It can support up to External 512 K Bytes SPI Flash memories for program
memory.
2.) EEPROM: We use 24C16 EEPROM to store DDC (Display Data Channel) data. The end-users’
setting data is stored in the 24C16 EEPROM. Each timing mode is allocated with 16 bytes of
memory space for information such as Sync frequencies, polarities… etc. PC can access the
EEPROM data indirectly through the D-sub-SDA and D-sub-SCL channels. (IͅC communication)
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4.4 Power On/Off Sequence
4.4.1 Hardware Power ON
When power cord is plugged into AC socket, SMPS starts work and provides U105 with VCC5V. When
VCC5V inputs, U105 resets circuit active, sets U105 all registers to preset modes, and then monitor goes into
stand-by mode. That means hardware power on has been completed.
The Panel_Vcc, Backlight_En, CLK/DATA output to panel will follow the following sequency.
1 L Live
1 2
2 N Neutral
P801 3 E GND
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4.5 Inner Connector Pin Assignment
4.5.1 CN501, CN502, CN503, CN504 (Connect to Panel Backlight, SM02B-BHSS-1-TB or equivalent)
Pin Symbol Description
1 H.V. High voltage for lamp
2 L.V. Low voltage for lamp
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25 RXO2+ Positive LVDS differential data input.Channel O2(odd)
24 GND Ground
23 RXOC- Negative LVDS differential clock input (odd)
22 RXOC+ Positive LVDS differential clock input (odd)
21 RXO3- Negative LVDS differential data input.Channel O3(odd)
20 RXO3+ Positive LVDS differential data input.Channel O3(odd)
19 RXE0- Negative LVDS differential data input.Channel E0(even)
18 RXE0+ Positive LVDS differential data input.Channel E0(even)
17 GND Ground
16 RXE1- Negative LVDS differential data input.Channel E1(even)
15 RXE1+ Positive LVDS differential data input.Channel E1(even)
14 GND Ground
13 RXE2- Negative LVDS differential data input.Channel E2(even)
12 RXE2+ Positive LVDS differential data input.Channel E2(even)
11 RXEC- Negative LVDS differential clock input (even)
10 RXEC+ Positive LVDS differential clock input (even)
9 RXE3- Negative LVDS differential data input.Channel E3(even)
8 RXE3+ Positive LVDS differential data input.Channel E3(even)
7 GND Ground
6 NC Not connection
5 NC Not connection.
4 NC Not connection
3 VCC Power supply (5.0 V)
2 VCC Power supply (5.0 V)
1 VCC Power supply (5.0 V)
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4.6 Key Parts Pin Assignment
divider from the hot terminal of the lamp to ground. Connect this pin to
which is in-phase to each other to this pin. If the peak voltage value at
OV2 pin exceeds +13V, the controller will treat this as lamp overvoltage
1 OV2 I condition. A pulse of current will pull-down on the COMP pin to regulate
the lamp voltage. The burst dimming signal will be ignored and the Fault
Timer will start ramping up. This signal is also used for short circuit
protection. If the voltage at OV2 is always above 4.9V, the controller will
treat this as a short circuit condition after a certain delay. The Fault Timer
will start ramping up. In single lamp application, connect this pin to OV1
pin.
Lamp current feedback 1. Connect this pin to the current sense resistor.
Combined with the lamp current feedback signal from LI2, the signal is
2 LI1 I
fed to the internal error amplifier. Selecting the feedback resistors can
easily program the lamp current. The signal is also used for open lamp
protection. If the voltage at LI1 is always below 1.15V, the controller will
treat this as an open lamp condition after a certain delay. The burst
dimming signal will be ignored and the Fault Timer will start ramping up.
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In single lamp application, connect this pin to LI2 pin.
3 LI2 I single lamp application, connect this pin to LI1. In multi-lamp application,
this pin is used for lamp current feedback which is out-of-phase of LI1.
this pin to GND. This pin is also used for IC enable control. A logic low
4 COMP I
(below 0.5V) input turns off the IC. The enable logic input signal should
Fault Indicator. Connect a capacitor from this pin to GND to program the
5 FT I open lamp and short lamp protection delay time. When the voltage on
this pin reaches 1.2V, the IC will shutdown until it is enabled again.
Switching Frequency Set. Connect a resistor from this pin to GND. This
6 FSET I
resistor sets the operating frequency of the MP1009.
DBRT pin.
1.2V at DBRT linearly sets the burst-mode duty cycle from minimum to
8 DBRT I 100%. The minimum burst dimming duty can be programmed by BOSC
VCC.
Input Power Rail. Decouple this pin to GND with >1μF ceramic capacitor.
9 VIN I
It is desirable to add a 10 resistor between VIN pin and the input bus.
Voltage Rail Output. VCC provides power supply for the low-side gate
13 VCC O driver and the internal control circuitry. Bypass VCC to GND with a
ceramic capacitor.
15 GND IC ground
Open lamp voltage feedback input. The function of this pin is same as
16 OV1 I
OV2
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5. Adjustment Procedure
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When switch to HDMI
(Image = no blanking)
3. Recommend environment
3.1. Optical (Best) input timing = 640 x 480 @ 60Hz;
Following timing modes also recommended,
800 x 600 @ 60 Hz
1024 X 768 @ 60 Hz
3.2. Pattern as below,
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[1] + [Ÿ] OSD Lock / Unlock (refer to segment 4-6-4)
[1] + [ź] Power Lock / Unlock (refer to segment 4-6-5)
[2] + [ź] Toggle DDC/CI and DDC/2B (DDC/CI enable/disable) and
show following message for 3 seconds,
Default = DDC/CI
Signal + [2] + [ ] Factory Mode
Remark : All the short cuts function are only available while OSD off
Range = 0 to 10
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*3 The OSD Unlock message as below,
Range = 0 to 10
*4 When the OSD is locked will lock all functions, including “Volume”, “Mute” and others.
*5 Status bar indicating OSD Lock or Unlock is in progress and when complete it will indicate “OSD
Locked” or “OSD Unlocked” for 3 seconds as below,
OSD Locked
OSD Unlocked
*6 When OSD appears on screen, the OSD Lock/Unlock short cut key will be disabled.
Range = 0 to 10
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*3 The Unlocking Power Button message as below,
Range = 0 to 10
*5 Status bar indicating Power Button Lock or Unlock is in progress and when complete it will
indicate “Power Button Locked” or “Button Unlocked” for 3 seconds as below,
Button Unlocked
*6 When OSD appears on screen, the OSD Lock/Unlock short cut key will be disabled.
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5.5 Function description:
!
Input Signal Notice Actions
1. The Input Signal Notice OSD appears 1 second when power turns on or change
input signal.
2. The Input Signal Notice OSD position is on the right-top side of image.
3. The OSD message as below,
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OSD Auto Save
The OSD shall save new settings when it is turned off by the user or when it times out.
There shall not be a separate save
Out of range
While non-defined timing is detected, following OSD message will keeps showing on,
1. If the timing is over spec (Fh, Fv or dot clock), the image shall be blanking, and OSD background shall
be non-transparent.
2. If the timing is inspect but not defined, the image shall be non-blanking.
The background color will persist without power saving until HDMI input is re-connected or other input
has been selected.
The following OSD message will display for 3 seconds and then disappear.
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5.6 OSD Structure
Main Menu
1. Background = blanking
center.
Contrast/Brightness Contrast ʳ
2. Default = 70
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3. Key button definition:
Brightness ʳ
2. Default = 100
Step 2:
target port.
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[Up]: Move up the slider DVI
[Dn]: Move down the slider
Step 2:
target port.
HDMI PC
target port.
HDMI PC
HDMI AV
Step 2:
target port.
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right-top corner of screen for 1 second.
HDMI AV
2. Default =50
9300K ʳ
Change Color setting to 9300K
7500K ʳ
Change Color setting to 7500K
6500K ʳ
Change Color setting to 6500K
1. Show on existing input port by red 5000K ʳ
color Change Color setting to 5000K
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[2]: Change to the selected color
Green
2. Default = 100
setting
Blue
2. Default = 100
setting
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Information ʳ ʳ
OSD
[2]: Execute the selected function [Up]: Increase the OSD value
(When push the button on the top [Dn]: Decrease the OSD value
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[Dn]: Scroll down the slider Vertical Position
(When push the button on the
Fine Tune
Sharpness ʳ
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1. Adjust range ={0,25,50,75,100}
2. Default = 50
Dynamic Contrast
Swap on and off the Dynamic Contrast function
Default = Off
will be disabled:
5. Brightness/Contrast menu
red color
item)
3. Default = Advanced
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Aspect Ratio 4:3
color
bottom item)
mode
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display mode. YUV Mode
2. Show on existing Display Mode setting by red Set color space to YUV for HD timing
color mode
setting.
bottom item)
item)
separately.
change.
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ECO Mode Standard
color
setting.
bottom item)
item)
4. Default = Standard
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9.under ECO mode, SRGB could be select and
French
Set OSD language to French and
German
1. Key button definition: Set OSD language to German and
[1]: Back to Main Menu OSD keep in Language Select OSD
[2]: Execute the selected function 1. Show on existing input port by red color Spanish
[Up]: Scroll up the slider 2. Key button definition: Set OSD language to Spanish and
(When push the button on the [1]: Back to previous OSD status keep in Language Select OSD
top position, the slider shall go [2]: Change to the selected language setting Italian
down to the bottom item) [Up]: Scroll up the slider Set OSD language to Italian and keep
[Dn]: Scroll down the slider (When push the button on the top position, in Language Select OSD
(When push the button on the the slider shall go down to the bottom Finnish
bottom position, the slider shall item Set OSD language to Finnish and
go down to the top item) keep in Language Select OSD
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[Dn]: Scroll down the slider Russian
2. When move to Resolution (When push the button on the bottom Set OSD language to Russian and
Notice / OSD Background / position, the slider shall go down to the top keep in Language Select OSD
Korean
Set OSD language to Korean and
Traditional Chinese
Set OSD language to Simplified
Select OSD
Simplified Chinese
Set OSD language to Traditional
Select OSD
Resolution Notice ʳ
Swap on and off the Resolution Notice function
2. Default = 50
OSD
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OSD V. Position
2. Default = 50
OSD
15
Set OSD Time Out to 15 Seconds
30
1. Adjust range = 5, 15, 30, 60 Set OSD Time Out to 30 Seconds
60
2. Default = 15 Set OSD Time Out to 60 Seconds
OSD Background
Swap on and off the OSD Background
; = Non-transparent
= Transparent
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Sleep 30 Minutes
Set time before going to Sleep mode
= 30 Minutes
45 Minutes
Set time before going to Sleep mode
= 45 Minutes
60 Minutes
6. Adjust time range before going to sleep Set time before going to Sleep mode
mode. Time range = 30, 45, 60, 120 = 60 Minutes
(Minutes) and Off. 120 Minutes
7. Default = Off Set time before going to Sleep mode
8. When Sleep mode is triggered, the power of = 120 Minutes
bottom item
top item
Memory Recall ʳ ʳ
1. Background = blanking
setting
Color)
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at the center for 3 seconds.
or Input Priority
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.
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5.7 Upload firmware to MCU via VGA Cable
5.7.1 Connect ISP board between monitor and PC as below configure
LCD Monitor
D-Sub
ISP Board
Insert to Print
Port 25pin
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5.7.2 Using Novatek ISP Tool Update FW:
(1).Select “ISP”, Choose the corresponding firmware, load to MCU.
(2).Choose the corresponding firmware, load to MCU, Select “Run”, start ISP.
(3).When the picture show “End”, ISP finished.
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6. Troubleshooting Flow Chart
6.1 Common Acknowledge
z If you change the interface board, be sure that the U101, U103, U104 and U105 these four
components also changed to the new I/F board because there was program inside. If not,
please re-write EDID and upload firmware into U101 via VGA Cable.
z If you adjust clock and phase, please do it at the condition of Windows shut down pattern.
z If you confirm the R.G.B. color is normal or not, please do it under 16-grey scalar pattern.
z This LCM is analog interface. So if the entire screen is an abnormal color that means the
problem happen in the analog circuit part, if only some scale appears abnormal color that
stand the problem happen in the digital circuit part.
z If you check the H/V position, please use the crosshatch pattern.
z This LCM support more than 30 timing modes, if the input timing mode is out of specification,
the picture may appears abnormally.
z If brightness uneven, repairs Inverter circuit or change a new panel.
z If you find the vertical line or horizontal line lost on the screen, please change panel.
z If you find the speaker don’t working, please don’t plug in audio cable, unless change new
speaker.
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6.2 No Power & Power LED Off
No power
Check F801,
P801,,RT801, D801
Check pin5 of
Check R833, R835,
IC802 voltage
R805, R834, R807
about 2.3V
Is there instantaneously
Check IC802
pulse wave on pin8
END
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6.3 DC output voltage is unstable
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6.4 Output power is unstable
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6.5 Backlight can’t be turned on
No raster?
Yes
LED Blue?
Yes
Backlight can’t
be turned on.
Yes
Is there 14Vdc No
voltage on pin9 Check power
of IC501?
Yes
Yes No
R503 open
Yes
Yes
No T501 fail
Is T501 ok?
Yes
Check feedback circuit END
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6.6 Black Screen and backlight turn on
Black Screen
NG
Check VCC
Power Fail
5V
OK
࣠अंऀईࢽ࣐ࣳ࣠࣠
࣐࣐࣋ࣳࢽࣾऋँࢽ
NG
Check
ࣳ࣠࣠࣎
࣏࣎࣋ࣳࢽ
FB104
OK
Check
Check Reset
FB102 FB103
Waveform
NG
Check C153
OK
NG
Check Crystal
Check
Waveform
C157,C158,X101
OK
OK OK
Check CCFL Check Invert fail
Enable pin102 of
NG
NG
Check R103,R105,R106,
U108fail and Q103
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6.7 White Screen
White Screen
OK
LVDS cable Workmanship
reinsert
NG
OK
Change LVDS LVDS cable NG
cable
NG
OK
Check VLCD OK Check VLCD Panel Fail
Is 5V
singals
NG
of Panel Enable
OK
Check CN104
Check
Q101,Q104 and
END
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6.8 Bad Screen
Bad Screen
OK
LVDS able
C Workmanship
Reinsert
NG
hange LVDS
Cable
NG
NG
Check crystal:
check X101,C157
Pin116&pin117 C158
OK
checkU108and
SO/CS#/SCK/SI
SDO/SCZ/SCKSDI /RSTN
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7. Block Diagram
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8. Schematic Diagrams
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VGA-INPUT
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DVI-INPUT
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HDMI-INPUT
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SCALER
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AUDIO
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POWER SUPPLY
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INVERTER SUPPLY
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9. PCB Layout Diagrams
MAIN BOARD - SILKSCREEN TOP
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MAIN BOARD - SILKCREEN BOTTOM
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POWER BOARD - SILKSCREEN TOP
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POWER BOARD - SILKSCREEN BOTTOM
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KEYPAD FOR FUNCTION - SILKSCREEN TOP KEYPAD FOR POWER - SILKSCREEN TOP
KEYPAD FOR FUNCTION - SILKSCREEN BOTTOM KEYPAD FOR POWER - SILKSCREEN BOTTOM
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10. Exploded Diagram and Exploded Parts List
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EXPLODED PARTS LIST ( VX2433wm-1/VX2433wm-CN)
ViewSonic Model Number: VS12324
Rev: 1a
ITEM ViewSonic P/N Ref.PN DESCREPTION Q'TY
1 C-00009284 714030024100R ASSY,FRONT,BEZEL,LP2447 1
2 B-00009290 792131500020R function-KEYPAD 1
3 NA 501020230300R key cover,,LP2447 1
4 E-00009253 631102240160R PANEL236" W (CMO901) 1
5 NA 509146306200R SCREW,P,CROSS,W/WAS,M3*6,Zn-Cc 7
6 B-00009424 792641300500R IF BOARD (W/DVI) 1
7 B-00009425 792641400500R POWER BOARD 1
8 NA 701000014600R ASSY,CHASSIS,W/ DVI,LP2447 1
9 E-00009255 618100200500R speaker 1
10 C-00009287 714050022600R ASSY,COVER,BACK,W/ DVI,LP2447 1
11 C-00009285 714011206600R ASSY,STAND,LP2447 1
12 C-00009286 714020019100R ASSY,BASE,LP2447 1
13 NA 509216610110R SCREW,F,CROSS,M4*10,BLK-NL (NYLOK) 4
14 CB-00008927 430300802770R power key pad line 1
15 NA 509000000700R BOLT,#4-40*11.8,Ni 4
16 NA 430300500530R IF key pad line 1
17 B-00009289 792131500010R power key pad 1
18 CB-00008926 430303002350R LVDS CABLE 1
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PACKING PART LIST ( VX2433wm/VX2433wm-CN )
ViewSonic Model Number: VS12324
Rev: 1a
Item ViewSonic P/N Ref. P/N Description Q'ty
1 CB-00008002 453030300120R AUDIO CABLE 1
2 A-00008111 453070800150R POWER CABLE 1
3 P-00009398 506060016710R CUSHION LEFT,LP2447 1
4 NA 506431008200R FILM PROTECTION PE 1
5 NA 714020018300R ASSY BASE VX2433wm 1
6 P-00009399 506120010900R BAG,PLASTICΔEPE+PE,L500xW670xT0.55mm,LP2447 1
7 A-00008411 703500009900R KIT ACCESSORY VX2433wm 1
8 P-00009400 506120010901R BAG,PLASTIC,L380xW330xT0.05mm,LP2447 1
9 CB-00008190 453030300370R DVI CABLE 1
10 CB-00008437 453010100380R VGA CABLE 1
11 P-00009397 506060016700R CUSHION RIGHT,LP2447 1
12 NA N/A MONITOR 1
13 P-00009396 506020029600R CARTON 1
14 NA 506440002300R CARTON LABEL 1
15 NA 506091000700R WARRANTY LABEL FOR CHINA 1
VX2433wm-1
ViewSonic Corporation 100 CONFIDENTIAL – DO NOT COPY VX2433wm-CN
11. Recommended Spare Parts List
VX2433wm-1
ViewSonic Corporation 101 CONFIDENTIAL – DO NOT COPY VX2433wm-CN
BOM LIST ( VX2433wm-1/VX2433wm-CN)
ViewSonic Model Number: VS12324
Rev: 1a
Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty
1 A-00008111 453070800150R PWR CORD 10A/125V BLK 6FT UL/CSA SVT 3Cx 100
2 CB-00008437 453010100380R CABLE,D-SUB 15P MALE 6FT BLACK/BLUE, ROH 100
3 CB-00008002 453030300120R CABLE AUDIO 1P 6FT BLACK/GREEN CP03B06P0 100
4 CB-00008190 453030300370R CABLE,DVI-D 18+1P MALE 6FT BLACK , ROHS 100
5 NA 453030300371R CABLE,DVI-D 18+1P MALE 6FT BLACK 100
6 NA 713100009800R ASSY,PACKAGE,PACK,VSA,VX2433(LP2447) 100
7 NA 506431008200R FILM,PROTECTION,UNPRINTED,555x327x0.1mm, 100
8 P-00009397 506060016700R CUSHION,RIGHT,LP2447 100
9 P-00009398 506060016710R CUSHION,LEFT,LP2447 100
10 P-00009399 506120010900R BAG,PLASTICΔEPE+PE,L500xW670xT0.55mm,LP 100
11 P-00009400 506120010901R BAG,PLASTIC,L380xW330xT0.05mm,LP2447 100
12 P-00009396 506020029600R CARTON VX2433 LP2447 100
13 NA 506250027600R LBL AGENCY VX2433 LP2447 100
14 NA 506440002300R LABEL,BLANK,76.2x76.2mm,LE1709(UPC) 100
15 NA 506440005200R LABEL,BLANK 49.5*24.5 BLANK LE2082(VA2 100
16 NA 506440002600R LABEL,BLANK,210x65mm,LE1709(PALLET) 4.2
17 NA 506250028000R LABEL POP feature VX2260wm(LP2137) 100
18 A-00008411 703500009900R KIT ACCESSORY VX2433 LP2447 100
19 NA 506070120900R MNL USER'S(CD), VX2433w(LP2447) 100
20 NA 506280302901R QSG VX2433w(LP2447) 100
21 NA 506420405200R INSERT SHEET, 1920*1080,LE21N1 100
22 NA 506180003000R BASE ATTCHMENT VX1933w(LE18L3) 100
23 NA 506030200901R SRS CARD FOR ViewSonic 100
24 NA 713010005500R ASSY, PACK,SEA, 20&40STD, VX2433(LP2447) 100
25 NA 506150006100R PALLET L1270*W1016*H130MM LE1939 2.1
26 NA 506039010460R CORNER PAPER1850x40x40xT5mm 8.3
27 NA 506039007200R CORNER PAPER 1200x50x50xT5mm LE1729 4.2
28 NA 506039007600R CORNER PAPER,900x50x50xT5mm, 4.2
29 NA 506038003500R CARDBOARD L1270xW1016xT4mm LE1939 2.1
30 NA 506036005900R CARDBOARD,L1190*W950*T7 2.1
31 NA 506431000300R FILM,PE 500mmx900M ROHS 0.2
32 NA 506380002100R TAPE WRAPPING TYPE(VIEWSONIC) 50mmx75M L 0.7
33 NA 506120100500R SEALED BAG ADHESIVE 330x230mm LE1918 2.1
34 NA 713010005501R ASSY, PACK,AIR, 20&40STD, VX2433(LP2447) 100
35 NA 506150006100R PALLET L1270*W1016*H130MM LE1939 4.2
36 NA 506039007200R CORNER PAPER 1200x50x50xT5mm LE1729 8.3
37 NA 506039007600R CORNER PAPER,900x50x50xT5mm, 25
38 NA 506038003500R CARDBOARD L1270xW1016xT4mm LE1939 4.2
39 NA 506036005900R CARDBOARD,L1190*W950*T7 4.2
40 NA 506431000300R FILM,PE 500mmx900M ROHS 0.1
41 NA 506380002100R TAPE WRAPPING TYPE(VIEWSONIC) 50mmx75M L 0.4
42 NA 506120100500R SEALED BAG ADHESIVE 330x230mm LE1918 4.2
43 NA 714076650000R ASSY,FINAL(B,A)W/SPK,LP2347-527(USA/VX24 100
44 C-00009284 714030024100R ASSY,FRONT,BEZEL,LP2447 100
45 NA 750010203200R SUB-ASSY,FRONT,BEZEL,PRINTING,LP2447 100
46 NA 501010224900R FRONT,BEZEL,LP2447 100
47 NA 501120110700R LENS,LP2447 100
48 NA 501030212200R FUNCTION VA1933 100
49 NA 501030212201R POWER KEY VA1933 100
50 NA 506102000300R LOGO PLATE VIEWSONIC LE1709 100
51 C-00009287 714050022600R ASSY,COVER,BACK,W/ DVI,LP2447 100
52 NA 501020230301R COVER,BACK,W/ DVI,LP2447 100
53 NA 502020301400R BRACKET VESA LE1729 ROHS 400
54 C-00009285 714011206600R ASSY,STAND,LP2447 100
55 NA 501260211700R STAND,LP2447 100
56 C-00009288 714000006000R ASSY,HINGE,LP2447 100
57 NA 509412610500R SCREW,B,CROSS,T.T-4*10,BLK ,ROHS 300
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VX2433wm-1
ViewSonic Corporation 102 CONFIDENTIAL – DO NOT COPY VX2433wm-CN
Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty
58 C-00009286 714020019100R ASSY,BASE,LP2447 100
59 NA 501240214600R BASE,LP2447 100
60 NA 503020006300R RUBBER FOOT L14.8*W9.6*T3.5mm ,LE19E3 600
61 NA 501020230300R key cover,,LP2447 100
62 NA 509216610510R SCREW,F,CROSS,M4*10,BLK-NL(NYLOK) 400
63 NA 714086650000R ASSY,PANEL(A)W/SPK,LP2347-527(VX2433WM) 100
64 NA 511150102610R FOIL,AL.,DOUBLE COND.,RIGHT,LE2239 100
65 NA 511150102600R FOIL,AL.,DOUBLE COND.LEFT,LE2239 100
66 NA 511150101800R FOIL,AL.,DOUBLE COND.,60x35xT0.07mm, LE2 100
67 NA 506381000700R TAPE,ACE,45mmx30M(PC=10x45mm),LE1709 ROH 200
68 NA 509146306200R SCREW,P,CROSS,W/WAS,M3*6,Zn-Cc 700
69 NA 509000000700R BOLT,#4-40x11.8,Ni FOR D-SUB/DVI CONN.RO 400
70 NA 701000014600R ASSY,CHASSIS,W/ DVI,LP2447 100
71 NA 502090103400R CHASSIS,W/ DVI,LP2447 100
72 NA 502020100600R BRACKET,HINGE,LP2447 100
73 NA 505040209000R INSULATOR,MYLAR,L21*W18*T0.5,LE19F6 100
74 B-00009424 792641300500R PCBA,I/F BOARD,W/SPK,LP2347-527 ROHS 100
75 B-00009425 792641400500R PCBA,P/I BOARD,W/SPK,LP2347-527 ROHS 100
76 B-00009290 792131500020R PCBA,FUNTION KEYPAD/B,LE18L3-722 ROHS 100
77 B-00009289 792131500010R PCBA,POWER KEYPAD/B LE18L3-722 ROHS 100
78 E-00009253 631102240160R LCP 23.6"M236H1-L01-901(A)(CMO) ROHS 100
79 E-00009254 631102240170R LCP 23.6"M236H1-L01-902(A)(CMO) ROHS 100
80 CB-00008926 430303002350R HRN LVDS FFC 30P 185mm W/TASTE&CORE&LOCK 100
81 NA 503110000300R RUBBER SILICON THERMAL CONDUCT 28X20XT7 100
82 NA 430300500530R HRN ASS'Y 5P 360mm UL1571#28 100
83 CB-00008927 430300802770R HRN ASS'Y 2*4P TO 1*8P 197mm UL1571#28 100
84 E-00009255 618100200500R SPEAKER 2.5W 4ȍ 170ϟ395mm R/G/B W/CASE 100
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VX2433wm-1
ViewSonic Corporation 103 CONFIDENTIAL – DO NOT COPY VX2433wm-CN
* Reader’s Response*
Dear Readers:
Thank you in advance for your feedback on our Service Manual, which allows continuous improvement
of our products. We would appreciate your completion of the Assessment Matrix below, for return to
ViewSonic Corporation.
Assessment
A. What do you think about the content of this Service Manual?
Unit Excellent Good Fair Bad
1. Precautions and Safety Notices
2. Specification
4. Circuit Description
5. Adjustment Procedure
7. Block Diagrams
8. Schematic Diagrams
C. Do you have any other opinions or suggestions regarding this service manual?
VX2433wm-1
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