Received a Technics SA-500. No sound and signal meter was pegged no matter what as well as power meter indicating, until I found a faulty solder joint, that solved the signal meter peg in FM mode and the power light issue, although AM still pegs.
Symptoms left
no stereo indicator no matter how strong signal
power transistor for left channel will not adjust.
former owned also indicated he had crossed the speaker wires. Fuses in protection circuit were 32v 20amp!!!! I am assuming he replaced the correct ones with these. They are now 125v 5a, also checked protection relay and it appears to be good.
wondering if power transistor blew on one or both channels. Also the variable resistors for left channel does nothing.
anyone ever run into this…lol
thx
cleaned all pots
Symptoms left
no stereo indicator no matter how strong signal
power transistor for left channel will not adjust.
former owned also indicated he had crossed the speaker wires. Fuses in protection circuit were 32v 20amp!!!! I am assuming he replaced the correct ones with these. They are now 125v 5a, also checked protection relay and it appears to be good.
wondering if power transistor blew on one or both channels. Also the variable resistors for left channel does nothing.
anyone ever run into this…lol
thx
cleaned all pots
