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820-3662 board , no audio , no speaker detect and no headphone detect

T

techrepair

Member
hi,
had a damaged jack on board , before replacement it was not detecting the jack or speakers and had a greyed out volume icon , also upon fitting the new one still does not detect any headphones and speakers . any possibilities of testing some outputs from u6201 to determine if u6201 is faulty and needs reflow or replacment .
kindly advise
thanks
 
D

dukefawks

Administrator
Likely there is either parts knocked off around U6201 or balls/traces under U6201 got ripped up by the force when the jack was broken. Check some voltages around U6201 first, 3V and 4.5V.
 
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