![background image](http://html1.mh-extra.com/html/viewsonic/va702b-17-lcd-monitor/va702b-17-lcd-monitor_service-manual_1020942028.webp)
2.
No Power & Power LED Off
No power
Check primary
rectifier voltage
Check IC802,
C805, T801
Check circuit
if short
Check F801, P801,
D801
Check pin3 of
IC802 voltage
about 1V
Check R801, R805,
R822, R823, R817
Check pin2 of IC802
voltage about 2V
Check R803, R807,
R824, R825
Check pin1 of IC802
voltage is 5.8V
Check R812, R816,
C818
END
25
D
o
Not
Copy
VA702/b
ViewSonic
Corporation
Co
nfidential
Содержание VA702B - 17" LCD Monitor
Страница 32: ...6 Black Screen and backlight turn on 29 Do Not Copy VA702 b ViewSonic Corporation Confidential ...
Страница 51: ...9 PCB Layout Main board Top layout 48 Do Not Copy VA702 b ViewSonic Corporation Confidential ...
Страница 52: ...Main board bottom Layout 49 Do Not Copy VA702 b ViewSonic Corporation Confidential ...
Страница 53: ...POWER board 50 Do Not Copy VA702 b ViewSonic Corporation Confidential ...
Страница 54: ...51 Do Not Copy VA702 b ViewSonic Corporation Confidential ...