ViewSonic Vx2235wm 5 Service Manual

ViewSonic Corporation Confidential - Do Not Copy    VX2235wm-1 
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Defect Mode Failure Analysis Repair Testing 
LED Off 
No Power 
LED Dark 
LED Abnormal 
LED Flicke
r 
Power ON/OFF  Abnormal 
LED Display  Abnormal Check PCBA 
Check Wire 
AD/B Change 
CNT/B Change 
OSD Cable 
Inverter/B 
Power/B Change 
OSD/B Change 
AC Power Change 
DC Power CNT 
Cable Chan
ge 
Adapter Change Check Adapter 
Check PCBA 
Check Wire 
OSD Cable 
Inverter/B 
Power/B Change 
OSD/B Change 
DC Power CNT Cable Chan
ge...

ViewSonic Corporation Confidential - Do Not Copy    VX2235wm-1 
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Defect Mode Failure Analysis Repair Testing 
Abnormal BIOS 
&OSD 
Check PCB 
Check Wire 
AD/B Change 
CNT/B Change 
OSD cable 
OSD No 
Display OSD Key   
Unavailable 
OSD Can’t 
Input 
OSD Can’t 
Read 
OSD Jiggle 
OSD Display 
Abnormal 
Check BIOS 
Inverter/B 
Power/B Change 
OSD/B Change 
D-sub cable 
VGA cable 
DVI cable 
BIOS Update 
Abnormal  
Louds peake r 
Check PCBA 
Check Wire 
AD/B Change 
CNT/B Change 
No Voice  Voice Loss...

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Defect Mode Failure Analysis Repair Testing 
Display Shut   
Down Check PCBA
Check Panel
Display Flicker 
((tapping )  Check PCBA 
Check Panel 
AD/B Change 
AD/B Change 
Power/B Change 
Panel Change 
CNT/B Change 
CNT/B Change 
Other Abnormal  Display 
Next StepTEST NG 
Complete
TV Function 
Display 
Abnormal 
※ “ Panel Change” Should be Performed to Level 3 Repair 
Panel Change 
Check PCBA 
Check Wire 
TV /B Change 
AV Cable Change...

ViewSonic Corporation Confidential - Do Not Copy    VX2235wm-1 
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 Trouble Shooting Analysis 
Check the information in this section to see if th e problems can be solved before requesting repair. 
Note ：The consumers are only allowed to solve  the problems described as below. Any 
unauthorized product modification, or failure to  follow instructions supplied with the product 
will end the warranty immediately. 
z  No image 
‹ Make sure power button is ON. 
‹ Check whether the LCD monitor and computer...

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7. Recommended Spare Parts List 
 
 ViewSonic Model Number:  VS11349
Serial No. Prefix:  QA5 Rev: 1a
Item DescriptionECR/ECN ViewSonic P/N Ref. P/N Location Universal number# Qty
1 Accessories: Power Cord A-00005071 32-D002330
1
2 Power Supply Board (Lips With Audio, V0.7
)B-00008026 27-D009542 1
3 Main Board Rev.04 B-00008027 35-D010627
1
4 PCBA Rev.02,ODM B-00008028 35-D010238
1
5 Cover Hinge (Right
)C-0000803940-D010946 1
6 Cover...

ViewSonic Model Number: VS11349
Rev: 1a
Serial No. Prefix: QA5
Item ViewSonic P/N Ref. P/N Description Location Universal number# Qty1 N/A 73-C000047
ACF, COG, AC-8405Z-23 1.5mmX100M, 100000 mmx1.5 mm, Hitachi Chemical, CO\
G-ACF, Green
I 0.0028
2 N/A 36-D006411
Driver IC, COG, Scan, M170E5-L09, HX8653-A000PD400, 240/263/256Channel, \
Himax, (HX8633
shrank version), Green II
4
3 N/A L4M003XXXX 22wide_TN,  Photo Spacer , Corning 0.7mm Glass ,  Resin/BM(Panel Base)\
 1
4 N/A L4M003XXBI 22wide_TN,  Photo...

8. Exploded Diagram and Exploded Parts List
 
ViewSonic Corporation 
Confidential - Do Not Copy    
VX2235wm-1 
 64
  

ViewSViewSonic Model Number: VS11349
Rev: Rev: 1a
Seria
lSerial No. Prefix: QA5
Item ViewSonic P/N Ref. P/N Description Qty
1 C-00008040 40-D010960 COVER_HINGE_LEFT_22W15 1
2 C-00008039 40-D010946 COVER_HINGE_RIGHT_22W15 1
3 N/A 40-D010955 REAR_ASSY_22W15 1
4 N/A PM0ZFH0R00 22 Wide,Monitor,D-Sub+DVI+Audio 1
5 N/A 40-D010955 BEZEL_ASSY_22W15 1
6 N/A 35-D0110238 PCBA_A220Z1-Z01-H-K2 1
7 CB-00008015 32-D011077 FFC_15pin 1
8 C-00008043 40-D010942 STAND_ASSY_22W15 1
9 C-00008044 40-D010947 SEAT_ASSY_22W15 1...

 
ViewSonic Corporation  
Confidential - Do Not Copy    
VX2235wm-1 
 66
 
ViewSonic Model Number: VS11349
Rev: 1aItem ViewSonic P/N Ref. P/NLocationQty
1 N/A VX2235wmLCD Monitior 1
2 P-00008033 78-D009624PE Foam Bag 1
3 P-00008036 78-D011103Carton 1
4 P-00008035 78-D011075EPS Foam (Bottom) 1
5 P-00008034 78-D011076EPS Foam(Top) 1
6 C-00008044 40-D010947Seat Assy 1
7 A-00005071 32-D002330Power Cord 1
8 CB-00005851 32-D002132Monitor Cable 1
9 CB-00005678 32F2818011Audio Cable 1
10 CB-00002083...

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9. Block Diagram 
 
 
 
 
OSD Key Pad / Audio Out 
D-sub 
Analog Video  Sp e a k e r  
 
AC Power  LDO 
Main Board 
LIPS  Backlight LCD Module 
DC-5V 
DVI-D 
Digital Video  5V 
Signal 
Audio In 
DC-12V 
12V 
3.3V