I have actually 2 amps from the same person with the exact issue. No audio. Amp Powers up and draws proper idle current and has no shorted mosfets, or output transistors. I have had many prime mono channels amps that an inductors has came from the board. But I have seen this a few times and can not fiqure it out. I need a signal generator. For now in going to push an audio signal into the amp and try and follow the 50htz signal? It's not so easy the way the board is layed out. Just wondering if anyone has found a solution to this issue already? Or some advise
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Ok so after 5 of these amps with same problem and hours of testing parts on the board i found the same problem with them all:
ZD702-ZD705 both of these or one was bad on each amplifier with the power supply intact, Amplifier's were powing up, yet only drawing @ .35amps of current. Check these 2 diodes.
ZD702-ZD705 both of these or one was bad on each amplifier with the power supply intact, Amplifier's were powing up, yet only drawing @ .35amps of current. Check these 2 diodes.
Just wondering if these were reading shorted or what? Was asked to check out one of these and it's got me stumped - power supply is fine and has the blue LED but there is absolutely no output whatsoever. Thanks for any help
If you start a thread someone will help you out with your issues. Always try to just start a thread or pm questions. Ill gadly try to help you out.