Question about Onkyo TX-SR502 Receiver

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Onkyo TX-SV919THX, No Output

My TX-SV919 lost output about 6 years ago. It turned out to be some internal battery. The shop that replaced it is gone. It now has the same problem, no output. Does anyone know how to fix this problem?

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I have found the battery location. It is roughly on the opposite side of the pc board where the display is. It basically faces the heat sinks. It's one of those small watch sized batteries and is soldered but sticking off the pc board with 2 leads. I could see that there was some leakage and corrosion. I still have to figure out what needs to be dis-assembled to get access to it so I can unsolder the bad battery and replace it. This stupid little battery seems to need replacing every 6-8 years! When it dies, it seems to disable the preamp section from passing any signal giving the symptoms that the amps are dead. However, if you try to use the pre-outs to an external amp, nothing. So, my guess is it has something to do with the preamp section. Anyway, that will be my weekend project to try to get at the battery and replace it with "longer leads" so it will be easier to replace in 6 years when it dies again. Great design Onkyo! You dumb-*** weasels!!!! I hate when companies engineer things to break so you are likely to pay them to fix it. Not this time, "No soup for you!" 

Posted on Feb 19, 2009

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