Question about Sony Audio Players & Recorders

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I have a Sony STR-AV770 receiver that has stopped its output of volume to the left side. Any chance of me fixing this on my own?

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Your question depends on how good you are at electronic diagnosis (symptom diagnosis) and how adept you are at removing and installing electronc components. first you have to determine why the amplifier has stopped working on the left channel. Make sure that the problem isn't a simple one, take the speakers off the right side and hook them to the left side and see if you get sound. If you do,, then the problem is the left speaker or left speaker wire. If you don't get sound then tyr taking the input that feeds the right channel and pluggin it into the left channel and listen for sound, if you get sound now the problem was the signal from your source not being sent down the left side.
If it still doesn't work you need to move inside the amplfier, but first, get close to the back of the amp and give a sniff, do you smell anything (a pungent burnt wire or rubber smell) if you do, the the chances are good that some components have burned out. Do you recall having a shorted speaker wire on the left side? shorted speaker wires are notorious (especailly older equipment) for burning out the final amplifer stage. If this was an expensive amp it might be worth fixing, if its not worth much then maybe you should consider religating it to use as a monophonic amplifier (one channel) you could use it to power a sub woofer in a hibryd stereo or surround sound system.
I don't know what more I can tell you at this point. If you go through the steps I outlined, and want to tell me the result I shall be glad to respond and maybe give you another direction to head in. good luck and I'm glad you are adventruous enough to want to try.

Posted on Mar 20, 2011

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