No power and not charging, lots of shorted caps to ground on motherboard
How can I locate the cause of many capacitors that are shorted to ground (continuity beep on both sides of capacitors) on my Sony SRS-XB30 motherboard?
I bought 48 units of these speakers to fix and almost all of them don't power on and don't charge. Upon taking them apart and looking inside, some boards have a burnt capacitor near the battery connection inside. Simply replacing this capacitor won't fix the problem. I've checked all of the capacitors on the board and many of them are shorted to ground (both sides). How can I locate the root cause of all of these bad caps or does it sound like the motherboard is fried and no longer repairable?
Whoever had experience with repairing bluetooth speakers that don't power on and don't charge with lots of bad caps, please give me some input/advice.
Questa è una buona domanda?