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bucka

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  1. Hi, I have a SUB 12S+ that powers on (there's a blue light) but doesn't drive the speaker. It's been on standby mode for years and probably hasn't worked for most of them. As per ngen33r's first video: the mosfets aren't shorted the gate drive resistors read 100 ohms voltage regulators read 26.3V I read 5.6v between the output resistors Q5 isn't surface mount, it looks like TO92 packaging I don't see anything obviously discolored or bulging I have a good soldering iron, a manual solder sucker, good sense about big caps and power rails, but very limited experience. I don't mind wrecking the board learning something or having it repaired if there's a good place (or if your queue ever dies down, @ngen33r). What would you recommend? Go after the caps, replace the glue, and re-test? Any suspicions of what died by keeping it in standby mode?
  2. Caveat: I'm not even a novice. Heed nge33r's warnings about electrocution or even worse, lifting solder pads and otherwise damaging boards. According to @ngen33r, replace C41. Link below goes to relevant timestamp.
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