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I have A KLH S200ETH with no sound. Burnt resistors

I have A KLH S200ETH with no sound.Upon amp removal, 2 ) resistors were found burnt. Ineed a schematic 4 unit. Please any help?

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Posted on Jan 02, 2017

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  • 547 Answers

SOURCE: i burned up some resistors

This is a pretty common problem with this sub.

Here's a solution that I posted earlier this year, including schematics for the upper and lower circuit boards. Be sure to check the circuit board revisions to make sure they match my schematics.

Posted on Sep 06, 2010

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  • 631 Answers

SOURCE: Rockford Fosgate 200S amp, not powering up, some burnt components found.

If the resistors go to the gates of the power supply FETs, the FETs are probably shorted. Measure the resistance between the gate and the drain (no power applied to the amp). It should be at least several thousand ohms.

If you can take high res photos, send them to my email address:
babin_perry@yahoo.com

Posted on Dec 21, 2007

  • 1 Answer

SOURCE: KLH ASW10-120B subwoofer

Hello, I have the same unit and even though I havn't had any problems with it, i do have the instruction booklet plus some other "techie" type material that may help. My friends an engineer and had some I am completley new to this site and don't know how to get ahold of people directly

Posted on Feb 04, 2008

tantong
  • 138 Answers

SOURCE: burnt resistor

You have to check what could cause these resistors to be burnt. It might be because of caps or IC. Unfortunately, I don't have this type of circuit board. If you cannot find it, try with the same value of resistors that are placed close to these fault resisters.

Posted on Mar 16, 2008

  • 1 Answer

SOURCE: Need schematic diagram, some advice and ultimately replacement parts

You have something in short circuit in power supply pattern, so filter coils are burnt. It may be voltage regulator, or regulating transistor, electrolytic capacitor or even shorted diode at pwr. input serving to protect in case of inverse polarity applied. Check all for short. Was it reverse polarity or overvoltage occured?

Mladen,
mladen@propilots.net

Posted on Mar 14, 2009

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Here's a solution that I posted earlier this year, including schematics for the upper and lower circuit boards. Be sure to check the circuit board revisions to make sure they match my schematics.

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Rockford Fosgate 200S amp, not powering up, some burnt components found.


If the resistors go to the gates of the power supply FETs, the FETs are probably shorted. Measure the resistance between the gate and the drain (no power applied to the amp). It should be at least several thousand ohms.

If you can take high res photos, send them to my email address:
babin_perry@yahoo.com

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