Question about JVC TH-C5 System
One day the light went out on the subwoofer and never came back on. We have electrical storms from time to time so I figured I blew a fuse. I took off the back plate and tested all 3 fuses and they tested fine. I then read that a bad cable from the center unit to the sub may cause the problem so I ordered a new cable and it still didn't come on. I guess I may have a blown transformer because I don't get 12v DC on the cable from the transformer back to the board (not sure if I tested it right since it has 2 reds 2 blues and a black). Any ideas?
SOURCE: subwoofer not powering up
I could either be the sub or the main unit. The main unit actually sends a signal to the sub to turn it on so if that circuit is bad in the main unit the sub is never going to come on. I've also seen bad cables (You'd be amazed at how stubborn people can be when din connectors don't cooperate).
Posted on Jun 15, 2007
It is possible that the power supply, and or the internal amplifier has some components that have failed. The unit will have to be serviced.
Get in touch with JVC to find out if your unit is still under warranty, and to find out who is their authorised service rep for your area.
Posted on May 15, 2008
SOURCE: sub won't stay powered up
well if your getting sound out of your surround speakers then the sub is busted, if your getting no sound at all then your speaker input's are either bad or out... i would test the speaker inputs...
Posted on Aug 09, 2008
if you know what a transformer is, and if you have a multimeter, i suggest you to go ahead andcheck the transformer,
Posted on Nov 05, 2008
Well i had exactly the same problem, my sub turned off right away when i turned the whole thing on. Well i opened the subwoofer and was trying to find out something unusual, i took out, i believe, internal amp, well, whatever that thing is, under the lid. Which one is screwed with 6 copper screws, so you unscrew those screws, lift that lid and that whole board comes out. On that board i find something like burn around one of the parts.
you can see it in the pick, the part q2902, then i contacted JVC. At the beginning they said i need to take the whole thing to service center and so on. But later i made them to tell me what kind of part that is, so here :http://www.jvcservice.com/store/ProductDetail.asp?Part=KTC3199/GL/-T
bought soldering gun in home depot for $15, returned after i was done. And that is it, just have to replace it, but total cost only $12 ($5 part +$7 shipping)
Posted on Mar 14, 2009
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