Question about JVC TH-M505 System

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What are these parts and where can i get them, subwoofer turns of

I have this 4 year JVC TH-M505 surround sound, but it is broken and i do not have any sound. When i turn on the system, sub woofer turns on and turns off. It started like 1 month ago. In the beginning sub woofer was turning off every couple hours, then about every 10 min, and now it turns of as soon i turn it on.
So i opened the subwoofer, and found couple parts that are burned out and smell a little bit. I took pictures and took them to radio shack, but the guys could not help me. I believe problem started because my braker was constantly tripping, like 5 times a week.
Please fallow the links where you can see pictures of the parts. I would really appriciate, if you guys could tell me what are the parts L2901 and Q2902, and where could i get them. Was looking online but nothing really comes on.
The pictures:
from distance:
http://www.flickr.com/photos/28004328@N04/3333561553/in/photostream/
and close up:
http://www.flickr.com/photos/28004328@N04/3333561417/in/photostream/
Thank you for your time.

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  • bratuskins Mar 14, 2009

    Well, had to found out everything my self, so here it is:
    Big round thing is: (on board L2901) Choke coil part# QQL28AK-221, that was not the probl, so i returned that thing.

    The faulty thing was SI. TRANSISTOR (on board Q2902) part# KTC3199/GL/-T

    Hope it helps.
    Cheers


  • matetau31 May 13, 2009

    Did you get you JVC working again? My sound works in DVD mode only and no sounds comes out when I use FM radio or VCR. I was wondering if I blew one of the channels or something.

    TIm


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Your looking at a capacitor (big round thing) and transistor (little black thing)

the y-221 on the capacitor should be a voltage designation, how to identify the transistor, well, i cant see it good enuf to say.

Posted on Mar 07, 2009

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