I have a Cambridge A5 Amp with added preamp. Recently the left speaker stopped working on phono (it's fine with CD and TV) I've cleaned the inside, which temporarily fixed the problem but the speaker has now stopped working again. Any ideas what the problem may be?
Thanks
If both speakers work okay on other inputs .Then cable from pre-amp to amp and main amp are okay. If phone RCA jacks go directly to electronics board .Then its possible solder on phono jacks need to be resoldered or other connections in that section.If unit needs repair you can also purchase a phono preamp from radioshack hook up your and use it on other good inputs such as CD etc..Please note PHONO inputs are only for turntables .If a non turntable input such as CD,TAPE,TV Etc is used on PHONE .Then you will overdrive this input .
Could be a cold solder joint problem anywhere between the Phono rca's and the Phono board. It temporarily worked because the cold the joint shrinks and makes contact but when heat is introduced the solder joint opens again making the channel drop out.
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many thanks, I assumed I'd have to repair something but hadn't considered buying an external pre-amp
It will probably be cheaper than getting the amp repaired
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