Sony STR-DE635 receiver no sound, what's blown? - Page 5

jamil5454 · 22nd July 2007, 07:11 PM

I removed the transformer connection and tested the RBV-602 again, and pins 2&3 are still shorted. If I were to take it out, what additional tests should I perform? Or should I just order a new one?

I found replacement transistors and parts (uPC2581V, MN2488, MP1620, RBV-602) at http://www.bdent.com , but to totally rehaul my amp it would be $100, which isn't worth it. I'd rather find what's broken and replace that.

I'm thinking the RBV-602 is gone, and if I get that fixed and the amp turns on properly maybe it will fix my no-audio problem!

anatech · 22nd July 2007, 07:40 PM

Hi jamil5454,
Shorted rectifier. Interesting.

It needs replacing. Look for at least one blown output stage or something that would draw that much current.

-Chris

Bert7855 · 16th September 2007, 07:24 PM

I have repaired this unit in the past and can help you resolve your problem. Let me know if you are still trying to fix it. I can also tell where you can find all of the part you will need.
Bert

22nd July 2007, 07:40 PM	#42
anatech diyAudio Moderator Join Date: Jun 2004 Location: Georgetown, On	Hi jamil5454, Shorted rectifier. Interesting. It needs replacing. Look for at least one blown output stage or something that would draw that much current. -Chris __________________ "Just because you can, doesn't mean you should" © my Wife

16th September 2007, 07:24 PM	#43
Bert7855 diyAudio Member Join Date: Sep 2007	Sony STR-DE635 I have repaired this unit in the past and can help you resolve your problem. Let me know if you are still trying to fix it. I can also tell where you can find all of the part you will need. Bert

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22nd July 2007, 07:11 PM	#41
jamil5454 diyAudio Member Join Date: Jul 2007	I removed the transformer connection and tested the RBV-602 again, and pins 2&3 are still shorted. If I were to take it out, what additional tests should I perform? Or should I just order a new one? I found replacement transistors and parts (uPC2581V, MN2488, MP1620, RBV-602) at http://www.bdent.com , but to totally rehaul my amp it would be $100, which isn't worth it. I'd rather find what's broken and replace that. I'm thinking the RBV-602 is gone, and if I get that fixed and the amp turns on properly maybe it will fix my no-audio problem!