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VSXXXXX service manual
Models:
VSXXXXX
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Troubleshooting
Specification
Install
Parts list
Block Diagram
Jump Wire
Adjustment Procedure
Do the following to adjust the display setting
Place the monitor on a clean and soft foam pad
Precautions and Safety Notices
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Contents
Service Manual
Model No. VSXXXXX 23.6” Color TFT LCD Display
ViewSonic VG2427wm
VG2427wmSM Rev. 1a Mar
Copyright
Revision History
Disclaimer
Trademarks
TABLE OF CONTENTS
1. Precautions and Safety Notices
1. Precautions and Safety Notices
1.4 Handing and Placing Methods
Correct Methods
Incorrect Methods
Place the monitor on a clean and soft foam pad
Place the monitor on the lap, the panel surface must be upwards
The panel is placed facedown on the lap. That may cause “Mura.”
2. Specification
3. Front Panel Function Control Description
The following tips may help you optimize your display
Do the following to adjust the display setting
Audio Adjust
Main Menu Controls
Control Explanation
Manual Image Adjust displays the Manual Image Adjust menu
Page
4.1 Main Board
4. Circuit Description
Pin Assignment
Page
Page
Page
Page
Name
Pin Descriptions
Pin #
Function
4.2 Power Board
IC901 LD7576
Typical Application
Block Diagram
1 CT 2 COMP 3 CS 4 GND 5 OUT 6 VCC 7 NC 8 HV
Function
Pin Diagram
Functional Block Diagram
IC801 TA9687GN
Pin No
Pin Description
I/O1
Names
5.1 White balance, Luminance adjustment
5. Adjustment Procedure
Enter into Burn/in mode
Enter into the factory mode
ISP Board
5.2 Firmware Upgrade Procedure
Max Brightness measurement 250 cd/m2 Test conditions
5.2.1 Equipment needed
LPT Cable
Hardware Connect status 5.2.2 Update the NOVATEK’S firmware
VGA Cable
You should jump the pin to “For Flash” at ISP Board Connect to the
Double click “Writer.exe”
Page
5.3.2 Install software
5.3 DDC Key in Procedure
5.3.3 Connect the DDC board as follow
Connect to the PC LPT
a. Double-click ,appear as follow Figs: b. Click
For analog
d. Unit appears the following Fig, writer completed
R3V080100001 12 codes, for example
6. Troubleshooting Flow Chart
7.1 Main Board
7. Block Diagram
7.2 Power Board
8. Schematic Diagrams
8.1 Main Board
20081225
FB402
TO252
Volume#
SOT223
ADD R711
NT68667UFG/C
0402
ADD R446,447
20K OHM 1/16W
JUMP WIRE
8.2 Power Board
bom change
2008-08-20
100K 1/10W 1%
POWER XFMR7
R813
100K 1/10W 5%
IC with Heat-sink90G6295-3
VOLUME
4 Lin
2 Rin
POWER
KEY1 POWER
3 POWER 4 BLUE 5 YELLOW
KEY2 DOWN
12V to
Hub side
Upstream
Dow nstream
9.1 Main Board
9. PCB Layout Diagrams
Page
9.2 Power Board
Page
9.3 Key Board 9.3 USB Board
Page
10.1 EPL
10. Exploded Diagram and Exploded Parts List
Description
Part Number
BEZEL
10.2 PPL
Description
Part Number
TDRMNDDKWBVSPC
11. Recommended Spare Parts List
Location
Part Number
REAR COVER
A34G0936 KR 3B0100
A85G0133101
SHIELD-AC
061G0402101
R105
RST CHIPR 100 OHM +-5% 1/16W
R109
061G0402470 0F
R401
RST CHIPR 0402 470 OHM +-1% 1/16W
R110
065G0402224
C302
CAP CER 0.22UF -20%-80%
C401
POWER BOARD
DOME SWITCH 5PCS
ZD401
093G
033G8021 2E
CN801
WAFER
IC903
8120
0M1G
SCREW
Q90G6263
061G0603105
R840
RST CHIPR 1M OHM +-5% 1/10W
R841
061G1206101
R935
RST CHIPR
OHM +-5% 1/4W
JUMPER WIRE
POWER BOARD PCB
C929
065G1206102
Q37G0139013
CONNECTOR
VSC 23.6 HINGE ASSY
Q40G 58170931A
061G0402104
R718
RST CHIPR 100 KOHM +-5% 1/16W
R719
Diversity of TDRMNDDYWBVSPC compared with TDRMNDDKWBVSPC
12. Different Parts List
Location
Part Number
Assessment
Reader’s basic dada
Reader’s Response