Question about JVC Audio Players & Recorders

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JVC FS-SD990R (CD shelf system) performs all functions with remote & unit buttons, but switches itself back to standby after 3-4 seconds. Power disconnect resets for the whole scene to be repeated.

Relay clicks when powered off. No obvious bad connections or dry joints internally. Any suggestions appreciated.

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  • JVC Master
  • 5,047 Answers

More than likely it's a safety feature because it has detected a short circuit. Perhaps in a speaker connection? Or maybe in the power amp stage. Check out the device's on the heat sink.

Posted on Dec 18, 2016

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

Boba
  • 64 Answers

SOURCE: No Power

The click might originate from the cd mechanism, you might be expriencing some electrical display problem.

Posted on Mar 01, 2006

techman
  • 3130 Answers

SOURCE: CD won't spin

Im afraid the laser is worn out, or there is a power supply problem, or the spindle motoer servo curcuit is defective. If you know how to service solid state curcuits, maybe it will be worth fixing. Im sorry to say, if you do not, then most likly the repair will exceed the cost of a new unit or come close to it. Good Luck PS please do not forget to rate this thread.

Posted on Oct 17, 2006

simplemitch
  • 752 Answers

SOURCE: Pioneer X MT- 2000 Stereo Bookshelf Unit - No sound!

It definitely sounds like it took a surge. yhe Power Amop IC in those things are pretty sensitive. Any decent repair shop should be able to repair it for under $125.

Posted on Sep 18, 2007

  • 2 Answers

SOURCE: Sony MHC-GX9900 Shelf System

i have the same problem with the blinking light this problem is due alot to over heating be careful your fan is not burned up or is not being blocked it is a protect mode activation to prevent overheating

Posted on Aug 25, 2008

alfredo_krau
  • 62 Answers

SOURCE: mini hi-fi JVC CA-FSX3 stops after power on

Well, I disassembled the unit carefully. And I've found that diode SR303 was blown. It's very easy to find near huge pulse-code converter chip. This diode is used at power supply stabilization for amplifier that has a D-class i.e. pulse-code amplifier, and for CD part. Testing of this diode confirmed that it's dead. After a couple of days received the diode from shop, is very cheap. Changing the diode recovered all the functions of the unit. Now it works fine.
Resume: The diode was burned as a result of incorrect connection to line input. The owner of the unit haven't seen that a volume level was at maximum. The connection of line input overloaded the maximum current capacity of the diode and it was blown. As for it, I've seen that in that circuit in reality must be used a stabilization chip, that is not so cheap like a diode. I think it's a constructor's error to change the chip, that is overload protected, to a simple diode.
Waiting that my info will be useful because it´s a most vulnerable part of JVC CA-FSX3. And don't overload the amplifier!

Posted on Sep 10, 2009

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