Question about JVC HX-Z10 CD Shelf System

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System seems to operate fine but no sound

The unit (JVC HX-Z10) powers up fine and seems to operate normally but doesn't produce any sound. I have tried all the differen't functions cd player, tuner etc and all seem to operate normally but there is no sound output from the speakers. Have also tried plugging in headphones but no sound from them either. Any help appreciated

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  • Nathan
    Nathan Mar 05, 2009

    The unit powers up fine, but sometimes there is no sound, and when there is sound, if i touch anything on the whole unit, i will hear a loud static noise. is there any way that can be fixed? if so, where can i buy the part? how much will it cost?



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There is something that is called a relay in side of the set when u open it u will see it were u put the speaker wires behind that two black boxes those are the relay look between them n see if any thing had burn if so u need to change that part of reach me at 742-2520 if u want

Posted on Jul 14, 2009

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Sounds to me like you may have a channel blown. If one of the channels is blown you will have your dc protection relays activate so none of the channels will operate and audio may be muted explaining the headphones not operating. Definetly sounds like it needs to be serviced. Sub woofer poweramp prt # stk412-420 or left /right poweramp prt# stk432-070 most likely suspects with the sub amp being the most common of the two to fail. Could also be broken solder at poweramp ic's seen that also Just a couple possibilities

Posted on Jan 15, 2008


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1 Answer

Subwoofers arent working

Try looking in the FIXYA section for electronics.

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Unit powers up, cd and radio seem to be operating properly, but no sound is heard, unit worked fine a few days before, all wires are conected, everything seems unchanged you said...the unit powers you don't have a "dead set".I don't know if the speaker can be disconnected from the unit.As a rule of is very rare that both channels (left and right )fail at the same is usually one channel while the other speaker still operates.This is what I want you to do...In a quiet room..get really close to the unit...Switch it on and listen for any sound from the speakers...get really should hear a slight hum from the woofers and a high frequency "hiss" from the tweeters....If no sound is heard..switch the unit off..You should hear a "plip" sound...If not...switch it on should hear a slight "bump" sound from the woofers...If you hear no sound from the speakers at all..there is a problem with the output stages of the amplifier section.If you do hear sounds fron the speakers,,Turn up the volume and watch for an increase visually on the display (such as ascending numbers).If there is no indication of a volume increase...The "mute" may be stuck on..Try switching it off and on...please let me know what happens after you do all the tests....Looking to hear from you......PEACE!!!

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