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Most likely the amp in the sub has blown. It will need repair or replacement. I'd take it to an expert in repairing amps, it's not a job for you unless you're experienced in troubleshooting these things.

KLH Audio... | Answered on Jan 01, 2015


I realize that this is an old problem, but folks are still finding it on searches, so here goes.

Here are the two pages of schematics from KLH. I wrote to their tech department and explicitly asked for permission to share them here.

Here's the lower board, which has the power supply:
KLH ASW 10-120 subwoofer schematic - lower board


Here's the upper board:

KLH ASW 10-120 subwoofer schematic - upper board


KLH ASW10-120... | Answered on Oct 19, 2014


The SR-2000 has fuses for both left and right outputs. Make sure neither are blown. Otherwise this receiver has a STK 463 integrated chip that controls the output for both channels. When replacing the STK-463 it is also acceptable to use STK-465.

KLH R3100... | Answered on Oct 06, 2014


Wire what exactly. Which set of KLH speakers have you got?

KLH Audio... | Answered on Sep 11, 2014


You can't, unfortunately. Bizarrely, the system doesn't have any inputs, only outputs. There's no way to get a signal from the TV into the system. There's plenty of Amazon reviews calling this cheap junk. I'd be forced to agree.

KLH Audio... | Answered on Sep 11, 2014


Yes, probably, if you aren't capable of repair yourself. However, IMHO, a replacement will probably cost less in the long run. I have a KLH passive subwoofer myself. I wouldn't pay for any repair if it failed. Replacements are far too inexpensive.

KLH Audio... | Answered on Aug 26, 2014


Try new cables.Connect a different speaker at low volume to confirm there is no power.My first guess is that your amp needs help.

KLH Audio... | Answered on Aug 26, 2014


Yes... At best it may be just a loose mechanical fixing component or foriegn object :)

KLH Audio... | Answered on Aug 18, 2014


You should have its remote control to select the inputs.
If you wish to buy its original remote control, contact the authorized service centre, or authorized dealer to your device brand. They can either give you a genuine remote control to your device, or can direct you, from where can you purchase a suitable one.
To select a proper universal remote control, you should know about the number of digits to its set-up codes. There are 3 digit, 4 digit, 5 digit, 2 digit and even single digit codes, to some brand devices. After confirming this, check the sites linked here. Both the sites have set-up code list and set-up procedure to many popular brand remote controls. Check which brand remote control has set-up code/s to your device brand, and buy that one according to availability? Brand name of the remote control isn't a matter, but it should have set-up codes in its code list, to the device brand you have.
Please note: Every new universal remote control will have set-up code list, and set-up procedure along with its pack. Never accept a remote control, that hasn't both of this. For more details about the set-up codes, visit the site http://electrohelponline.blogspot.com/ Check this site too. http://remotesearch.blogspot.com/ Type in the brand name of your device in the search box, and press "Enter".
Universal remote controls are available at most of the electronic spare part selling shops.

KLH Televison &... | Answered on Aug 03, 2014


hi there try this link they can help you

http://www.telefunken.com/service/

KLH 13" TV | Answered on Jul 17, 2014

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