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54
ViewSonic Corporation
Confidential - Do Not Copy
VA2226w-1
6.2. No Power & Power LED Off
No power
Check primary
rectifier voltage
Check IC802,
C804, T801,
Check
circuit if
Check F801, P801,
RT,801,D801
Check pin6 of
IC802 voltage
about 12V
CheckC810,D803,C80
7,
Check pin2 of IC802
voltage about 3V
Check primary OVP,
OLP and secondary
Check pin1 of IC802
voltage is below 1V
Check R811, R810,
R809, R808,R814
END
Содержание VA2226w-1
Страница 5: ...2 ViewSonic Corporation Confidential Do Not Copy VA2226w 1 4 Handling and Placing Methods...
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Страница 50: ...47 ViewSonic Corporation Confidential Do Not Copy VA2226w 1 Disassembly Procedure BASE HINGE COVER STAND...
Страница 51: ...48 ViewSonic Corporation Confidential Do Not Copy VA2226w 1 Front Cover Back Cover...
Страница 52: ...49 ViewSonic Corporation Confidential Do Not Copy VA2226w 1 Keypad Board Chassis...
Страница 53: ...50 ViewSonic Corporation Confidential Do Not Copy VA2226w 1 Power Board Key Power Cable LVDS Cable...
Страница 54: ...51 ViewSonic Corporation Confidential Do Not Copy VA2226w 1 I F Board...
Страница 60: ...57 ViewSonic Corporation Confidential Do Not Copy VA2226w 1 6 5 Backlight can t be turned on...
Страница 61: ...58 ViewSonic Corporation Confidential Do Not Copy VA2226w 1 6 6 Black Screen and backlight turn on...
Страница 63: ...60 ViewSonic Corporation Confidential Do Not Copy VA2226w 1 6 8 Bad Screen...
Страница 64: ...ViewSonic Corporation Confidential Do Not Copy VA2226w 1 7 Block Diagram 61...
Страница 70: ...67 ViewSonic Corporation Confidential Do Not Copy VA2226w 1 9 PCB Layout Diagrams...
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Страница 74: ...71 ViewSonic Corporation Confidential Do Not Copy VA2226w 1 10 Exploded Diagram and Exploded Parts List...