![background image](http://html1.mh-extra.com/html/viewsonic/va2012w-1/va2012w-1_service-manual_1020742054.webp)
No Audio
No Audio Output
Check input signal
J1 OK?
Check CN7 to
speaker OK?
Check CN6 pin 1,2
12V correct?
Check U6 pin 6
Volume and Q7
Check U6
pin12(mute),p11(stby)
Change M/B
Check input source
or change J1
Change speaker
Change power
board module
Change Q7
Change U6
NO
OK
NO
NO
NO
NO
OK
OK
OK
OK
OK
51
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...