![background image](http://html1.mh-extra.com/html/viewsonic/va2012w-1/va2012w-1_service-manual_1020742053.webp)
No Power
No Power
Check CN6 pin 1,2
12V correct?
Check U4,U3 pin2
3.3V correct?
Check U5 pin 2
1.8V correct?
Check Y1
frequency 12MHz
Change M/B
Change Y1
Change U5
Change U3,U4
Change power
board
6
.
Troubleshooting Flow Chart
50
ViewSonic Corporation
VA2012w-1_VA2012wb-1
Confidential - Do Not Copy
Содержание VA2012w-1
Страница 73: ...11 PCB Layout Diagrams MB TOP70 70 ViewSonic Corporation VA2012w 1_VA2012wb 1 Confidential Do Not Copy...
Страница 74: ...MB TOP 71 ViewSonic Corporation VA2012w 1_VA2012wb 1 Confidential Do Not Copy...
Страница 75: ...MB BOTTOM7 72 ViewSonic Corporation VA2012w 1_VA2012wb 1 Confidential Do Not Copy...