Hardware Switch repair question / Low power charge / won't turn on

[w0nk1]

Hey guys,

I have bought a faulty Switch which won't turn on. I put it on a USB meter and measure a charging current of 0.470 Amps - so far so good. But it won't go to fast charge and neither turning on or giving me a backligh - not even a change in the current. I changed already M92T36 but no difference at all. All caps around the chips are not shorted. Any clues? I am a bit helpless. ^^

Edit: Nevermind: I found a lots of shorted caps behind the cpu side.... :-/

 

[White_Raven_X]

Hey guys,

I have bought a faulty Switch which won't turn on. I put it on a USB meter and measure a charging current of 0.470 Amps - so far so good. But it won't go to fast charge and neither turning on or giving me a backligh - not even a change in the current. I changed already M92T36 but no difference at all. All caps around the chips are not shorted. Any clues? I am a bit helpless. ^^

Edit: Nevermind: I found a lots of shorted caps behind the cpu side.... :-/

Did you fix and get it going again? Did you figure out the cause?

 

[Patapon3321]

Maybe other shorts on the board? Not good solder connections by m92t36? Maybe not good m92t36? It can be everything. How much voltage do u get by m92t36 Pin 5 and Pin 6?