Hardware switch v2 water damaged repair

vastrolorde

vastrolorde

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working on a v2 water damaged unit, after cleaning the board. and installed new M9 IC, assembled and tested it with a good charged battery, but unfortunately im still not getting any reading on M92T36, no 3v on pin 5/6, no 1.8v, getting around 3.9v on caps around BQ IC near the battery.

any ideas where should i be lookin at? just a newbie on this kind of switch repairs.

thanks in advance.
 
vastrolorde

vastrolorde

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Ttm3 said:
Are you getting voltage to the m92? Is the fuse okay? Any shorts?
Click to expand...

I'm getting continuity on the fuse, so i assume its good, not getting 3v on m92. no shorts around m92, BQ, P13 cleaned the board thoroughly just right after it was accidentally dropped. what component should i check? responsible for sending voltage to M92 chip?
 
vastrolorde

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Ttm3 said:
What kind of voltage are you getting through the fuse with the charger on?
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not reading any voltage on each side of the fuse, when plugged in.. wondering if this is caused by the max ic underneath battery connector? read somewhere here bout that, poviding the power to the rail, but i dont know how test it if its defective.
 
Ttm3

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vastrolorde said:
not reading any voltage on each side of the fuse, when plugged in.. wondering if this is caused by the max ic underneath battery connector? read somewhere here bout that, poviding the power to the rail, but i dont know how test it if its defective.
Click to expand...
do you have a different charger you can try? I always test with a nintendo charger & with a reliable slow charger. I've noticed sometime they will react differently
 
vastrolorde

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Ttm3 said:
do you have a different charger you can try? I always test with a nintendo charger & with a reliable slow charger. I've noticed sometime they will react differently
Click to expand...

already tried using official switch charger and tru power bank... already a tested charged battery, still not powering on.
 

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