Happy New Year everyone. Last time I came on here with a question I came out with a fixed receiver and I'm hoping I'll be lucky for a second time. I have a Sansui 3300 which has stopped emitting noise out of the right speaker. Some days it comes on right away and others I have to turn it on & off multiple times before it seems to finally engage. Today it doesn't seem to want to stay on at all. The strange thing is when I turn the receiver off, the speaker becomes active for the second it takes the receiver to turn off. The problem occurs on all channels. Any help would be greatly appreciated!
Are you talking about the rare 3300 receiver? It has a boatload of switches and connectors (which I've been told are all in the signal path) and need to be exercised regularly to maintain continuity. No protection relay(s) AFAIK to manifest this behavior.
I would (with power off) work the crap out of all the switches and pots, at least 10X in/out and left/right pot rotations on each switch and control. It that don't get it, I personally would then remove the top cover and with power on and low volume setting carefully tap around components with a small wood dowell, chopstick or similar. Could be a solder joint, fine crack in a trace, broken component lead, failed component, broken wire etc.
Quote: "The strange thing is when I turn the receiver off, the speaker becomes active for the second it takes the receiver to turn off." Doesn't seem too weird, seems pretty common behavior for an intermittent signal.
But, until you work with and vett all those swiches and pots to be OK its likely a wild goose chase could then ensue.
Do you need a copy of the 3300 service manual? I would happy to get one to you.
The 3300 has a unique tonality very well suited to playback of '60s engineered music, such as the 1st generation Beatles CD issues and similar material. Its 22 WPC power was an issue driving my speakers, and using it as a preamp into a Yamaha m-4 power amp gives the same tonality... so the voicing is in the preamp. Great looking and 42+ lbs of solid build. Chronologically very close to the pinnacle era of high quality Japanese Hi Fi. And somewhat obscure.