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Jbl 136 subwoofer will not go out of standby

Will power up light stays red

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

ice man
  • 68 Answers

SOURCE: jbl pb12 subwoofer

yes it can be repaired. but i need more details on this...

Posted on Apr 23, 2007

SOURCE: jbl PB12 powered sub woofer

if your serial number starts with ha then it's probably a bad capacitor C72 . 6.8uf 100v np electrolytic. replace it with a higher voltage capacitor of the same value.

Posted on Jan 05, 2008

  • 1 Answer

SOURCE: jbl subwoofer PB12

I had the same problem...replaced the C42 capacitor with one that I got from RS...fixed everything and all is well again. I only have moderate soldering skills, too, so if I can do it, so can you

Posted on Dec 01, 2008

  • 1 Answer

SOURCE: No Sound from my JBL SCS135 Subwoofer

no sound

Posted on Aug 26, 2009

budmrtn
  • 11361 Answers

SOURCE: JBL PB10 subwoofer sounds distorted and lights on the front flash

More likely to be the Class D power amp module, but you should look through the service manual to make sure all the parts are installed correctly. My PB10 AMP module went out and you cannot get one anymore.
http://manuals.harman.com/JBL/HOM/Service%20Manual/PB10%20sm.pdf

Posted on Nov 10, 2009

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1 Answer

JBL PB12 will have loud thump or pop!


First try to find the source of your problem. The easiest way would be to try your sub with a different audio source to see if the problem still occurs but is sounds more like there's a problem with the receiver.

Oct 18, 2012 | JBL PB12 Subwoofer

1 Answer

Light stays red, will not switch to green. I hear no sound from the subwoofer


Red Light Constant On - Means the Amp Is Not Turning On - Signal Problem or Most Likely Burnt / Non Working Components - There Is A Guy On Ebay Who Repairs these amps.

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I got a jbl sub 136 200 watts subwoofer , thinking about repairing so i put new speaker in still messed up , looks like circuit board may be toast , is it worth repairing and where can i get parts


Have you checked the Impedence of the old speaker. If you can measure to below 8ohms you need not replace the speaker. Check with proper LFe signal at input of your amp. Also check for power indications before going further.

Dec 15, 2010 | JBL PB12 Subwoofer

1 Answer

AR SW-30 subwoofer doesn't switch to standby mode when off


Disconnect its input cable to see if a true lack of signal lets it go to sleep. If not, it has a bug. Otherwise, you probably have some sort of signal present on the sub cable.

Jan 17, 2010 | Audio Players & Recorders

1 Answer

Wiwing question


its for the led light red and green red means in standby position and green means its on

Nov 12, 2009 | JBL S120PII Subwoofer

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Dont know how to turn it on


Just plug it in to an outlet. The lights on the front should be red (or standby mode). When it gets a good sound signal, it turns green (that's when it's on). It does not have a power switch.

Jul 10, 2008 | JBL PB10 Subwoofer

1 Answer

Subwoofer light


The subwoofer light stays red regardless of the state it is in despite it being labled a standby light. (It's more of a power on light) It seems that philips missed the point of what a standby light is.

I would have expected the light to have changed colour to indicate that the unit was operational and perhaps syncing with the receiver box.

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