820-3115 no backlight

Kyle93

Active member
Board came in with no liquid damage. Turns on with high fan spin but no image or backlight. Im suspecting pch issue?

R9704 0V

C9712 0v

C9713 0V

Is there something else I should check?
 

2informaticos

Administrator
Staff member
Post voltage for the other coils.
ALL_SYS_PWRGD is stable?
Try one RAM module at a time.
Check if R7402/03 are both OK.
Do you get at least a drop pulse at TON pins of U7400?
 
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