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pioneer problem troubleshooting [message #26753] Mon, 02 March 2009 14:39 Go to next message
GARY G. PATE is currently offline  GARY G. PATE
Messages: 2
Registered: May 2009
Esquire
have several old pioneer receivers in need of repair, sx-636, sx-780, sx-890. i would like to repair myself, but need help. don't know much about audio electronics.

Re: pioneer problem troubleshooting [message #26754 is a reply to message #26753] Tue, 03 March 2009 11:44 Go to previous messageGo to next message
Wayne Parham is currently offline  Wayne Parham
Messages: 18786
Registered: January 2001
Illuminati (33rd Degree)

What are they doing? No power? Lights but no sound? One channel fine, the other blown?


Re: pioneer problem troubleshooting [message #26755 is a reply to message #26754] Tue, 03 March 2009 17:13 Go to previous messageGo to next message
GARY G. PATE is currently offline  GARY G. PATE
Messages: 2
Registered: May 2009
Esquire
all lights and unit powers up, but the sx-636 will play for a few minutes and the speakers pop, and then a loud scratchy static will ensue. i have hooked up different speakers and it does the same thing. the sx-780 powers up and plays , but the right channel is weaker than the left channel.

Re: pioneer problem troubleshooting [message #26756 is a reply to message #26755] Wed, 04 March 2009 11:19 Go to previous message
Wayne Parham is currently offline  Wayne Parham
Messages: 18786
Registered: January 2001
Illuminati (33rd Degree)

If you have a scope, you can track these problems down. You'll probably need one unless you are willing to swap parts blindly until you find the bad ones.


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