Ok, I got my hands on an Onkyo TX-850 receiver. The problem with it is, it refuses to turn on/stays in standby mode. BUT if I hairdry the electrolytic caps or leave the unit alone for about 24 hours, it will power on normally and work fine for a few minutes.
So, is there a good chance that replacing the caps will fix the problem?
I do have the service manual for this just in case.
I would seem like a cap problem. Usuallu the might work, if you heat them. However it might be just one bad cap. Use of a ESR meter would simpify this operation.
JMK
I just had one of these a few months ago...this was the fix!
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ONKYO TX850
Front Panel Display Dead
Art Bevilacqua
The Problem Turned Out To Be A .022 Ufd Cap At The Collector Of The Reset Transistor, Nearly Completely Shorted And Pulling Down That Reset Line To Zero Volts. This Cap Was On The Front Panel, But Was Soldered Onto The Back, Directly To The Traces, And Held Steady By Everyone's Favorite Glue Junk.
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-- ========================== Jeff Stielau Shoreline Electronics Repair 344 East Main Street Clinton,CT 06413 860-399-1861 860-664-3535 (fax) jstielau@snet.net ======================== wrote in message news:1129321169.382831.6680@o13g2000cwo.googlegroups.com... > Ok, I got my hands on an Onkyo TX-850 receiver. The problem with it is, > it refuses to turn on/stays in standby mode. BUT if I hairdry the > electrolytic caps or leave the unit alone for about 24 hours, it will > power on normally and work fine for a few minutes. > > So, is there a good chance that replacing the caps will fix the > problem? > > I do have the service manual for this just in case. > >
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