ViewSonic VX924 Service Manual

Can not power on monitor
Check adaptor
Check K/B
Check crystal X1 / X2?
OK
OK
OK
Check CN 6, R79
Change M/B
NO
NO
NO
NO
Change adaptor
Repair open / short
Change X1 / X2
Change failed part
NO
Fix power supply circuit
OK
OK
Open / short?
Pin 40 of U6?
Check power supply
(12V, 5V, 2.5V & 3.3V)
2. Monitor cannot power on
50
ViewSonic Corporation Confidential
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Do Not Copy VX924

ViewSonic VX924 Specifications

General

Brand	ViewSonic
Model	VX924
Category	Monitor
Language	English