Question about Sony Audio Players & Recorders
Try contact cleaner on the volume dial and run it back and forth many times .
Posted on Apr 09, 2015
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Posted on Jan 02, 2017
unplug it back in went into safe mode it sounds like gotta watch those kids lol unplug from wall 10 min try pluging back in ok if not blow fuse inside
Posted on Jan 24, 2008
SOURCE: Sony STR-DE135: No audio output
first, at turn on you should hear a relay click then a few seconds later a second click. if you should hear the two relay clicks then check to see if you have both A and B speakers on, if you do shut B speaker off. next check the tape monitor switch make sure that it is off. if you should not hear the second relay click you have a problem with the unit and needs to be repaired.
Posted on Feb 17, 2008
The headphone is tapped before the final stage of the amp, so knowing that those work properly helps to isolate the problem. I think that this model uses an IC for the voltage amp section prior to the final amp stage. That being said, the IC is probably an UPC2598 (if memory serves). I'll confirm tonight. Try resoldering any connections that appear to be grainy or have rings. Let me know what you find.
Posted on May 08, 2008
SOURCE: Sony STR-D665
Protet mode is a special diagnostic mode that starts when a fault is detected.
When in protection mode the unit is prevented from starting by protection circuit, so to prevent further damage.
Check the speakers and speakers wiring, a contact in speaker wires, or faulty speakers can send the unit in protection.
Try unplugging power cable for one hour or so. then connect cable back and see if you get rid of protect state. Sometimes accumulation of electrostatic charges inside circuit capacitors can kick in protect mode. In that case unplugging the unit from main for some times can get rid of electrostatic charges, and reset circuits by draining power completely.
If that was the problem, you will not get Protect when plugging back power cable.
If you do all the above and still get Protect, then there is a real fault.
In that case the unit may be disassembled and tested to find the fault.
If that is the case I suggest contacting the manufacturer at the number listed on the owners manual, or asking a quote on repair to a local technician.
Posted on May 29, 2009
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