Question about Sony STR-DE135 Receiver

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No power -- bad power supply?

My SONY STR-DE135 receiver will not power on. I'm thinking this is most probably the power supply. Where can I purchase parts for this receiver, and is there anything else I should be checking for?

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The fuse thats leads to the power supply on the sony receiver blows everytime i try to plug in the receiver. What makes this happen and what can i do to get the receiver going again. Model STR-DE135.

Posted on Oct 12, 2008

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My sony receiver STR-DE135 is showing a protector message


Check for shorted speaker cables, or even a bad speaker. I'd start by disconnecting all speakers, see if the indicator goes out. If so, try one speaker at a time until you find which channel is bad, and then examine the cables carefully for things like a stray wire strand. Less likely, but possible is a shorted speaker. If you disconnect them all, and still have the protector circuit on, it's an internal issue, and you're going to need a technician.

May 30, 2011 | Sony STR-DE135 Receiver

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I have a sony STR-de135 receiver whlie looking for one problem created another.While the receiver was unpluged I touched and output transistor MN2488 and it sparked now the left channel sounds distorted so...


The capicitors in the unit are charged. Replacing the output transistor(s) is not a task for a novist. Capicitors, resistors, driver transistors and sometime preamp chips can also be bad as well. If all the bad components are not replaced the parts you replace could blow out again.

Jun 19, 2010 | Sony STR-DE135 Receiver

1 Answer

I have the same problem. The fuse blows every time I plug the Sony STR-DE135 into the wall. I did not find the F901 at Radio Shack, so I bought a fast acting 5 Amp 125V Fuse at the Hardware store. It blew...


There is usually one or two normal clicks on power-up. A self-protection relay activates after a short delay for circuit and power stabilization plus some internal cheking for shorts and thermal issues.

If it keeps blowing fuses you are stressing it a bit more every time you feed it another one. I'd get it in to a Pro for repair.

Mar 02, 2010 | Sony STR-DE135 Receiver

1 Answer

Want to play my ipod through sony str-de135 receiver


Get a headpone to rca cable (radio shack or best buy) and use any input on the rear of the receiver except phono. You will need to turn the ipod to near max volume.

Nov 28, 2009 | Sony STR-DE135 Receiver

1 Answer

On the display of my sony str-de135 appears the word"protect" and then the cd does not work. what must I do ?


your speaker wires are grounding out on something or you have popped an internal fuse or youve burnt the power supply refer to your manuel

Oct 07, 2009 | Sony STR-DE135 Receiver

1 Answer

No sound out of left speaker


did the left channel work when u switched speakers, if so then the left speaker or wiring is a fault.if not then the output circuits on the amp are blown or the fuse is blown some amps have internal fuses in the output to protect the output transistors. unplug the power cord and take the cover off, look to see if u can find any fuses and check these for continuity u can hold these up to the light and u should see a fine filiment in one piece and not broken. these fuses sometimes blow just from age and use at high volume like a regular light bulb.If the fuse is blown replace with the same value else the output transistors will need to be replaced most likley along with the drivers.

May 19, 2009 | Sony STR-DE135 Receiver

1 Answer

My Sony STR-DE135 reciever has sever distortion on the right channel speakers (A&B) no matter which input is selected. I can not find any obvious fault on the board. Any tips to help me fix it?


It sounds like your receiver may have a damaged output IC. I'm assuming that you've already tried a known good speaker on the right channel but if not, that would be a good idea. Also check and verify that the speaker wire is not damaged and that the terminals at each end are securely fastened.

Good Luck,
BB

May 16, 2009 | Sony STR-DE135 Receiver

1 Answer

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.

Feb 17, 2008 | Sony STR-DE135 Receiver

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