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ViewSonic Corporation
52
C. Performance Troubleshooting
Start
Screen is
flickering?
Change VGA
Cable
Change Main
Board
Bad Uniformity?
Is screen white?
NO
NO
Screen is
scrolling?
LCD Line Defect?
Change
Inverter Board
Change LCD
Module
Change LCD
Module
Check
Connector
Change Main
Board
Change LCD
Module
NO
Yes
No
Change Main
Board
NO
NO
2
NO
YES
YES
YES
NO
YES
YES
YES
NO
YES
YES
YES
YES
YES
YES
YES
Confidential - Do Not Copy
VA703b-4_VA703m-4
Summary of Contents for VA703b-4
Page 29: ...ViewSonic Corporation 26 Confidential Do Not Copy VA703b 4_VA703m 4...
Page 30: ...ViewSonic Corporation 27 Confidential Do Not Copy VA703b 4_VA703m 4...
Page 35: ...ViewSonic Corporation 32 Confidential Do Not Copy VA703b 4_VA703m 4...
Page 36: ...ViewSonic Corporation 33 Confidential Do Not Copy VA703b 4_VA703m 4...
Page 41: ...STEP5 DCC WRITTEN methods ViewSonic Corporation 38 Confidential Do Not Copy VA703b 4_VA703m 4...
Page 87: ...ViewSonic Corporation 83 11 PCB Layout Diagrams Confidential Do Not Copy VA703b 4_VA703m 4...
Page 88: ...ViewSonic Corporation 84 Confidential Do Not Copy VA703b 4_VA703m 4...
Page 89: ...ViewSonic Corporation 85 Confidential Do Not Copy VA703b 4_VA703m 4...
Page 90: ...ViewSonic Corporation 86 Confidential Do Not Copy VA703b 4_VA703m 4...
Page 91: ...ViewSonic Corporation 87 Confidential Do Not Copy VA703b 4_VA703m 4...