20 Most Recent JBL SCS125A System Questions & Answers


You need to check your ground connection. If there is a bad ground there will be feedback to the amp and it will just sit there and loop back with the Thump, Thump, Thump sound. I had to wire my amp's ground all the way back to the negative battery terminal. It was a pain but I have never had a problem since :)

JBL SCS125A... | Answered on Oct 08, 2016


How to connect im911

JBL SCS125A... | Answered on Mar 14, 2012


hi,
may be its speaker have some problem. its tweeter is working that's why u get a very low volume through that speaker. change the speaker in side that box and then try.
ok

JBL SCS125A... | Answered on Dec 23, 2010


Before you blame the speaker one simple test needs to be made, if you have not done so already.

If one remaning speaker has full volume output, swap one of the 'defective" speakers to that same channel the "good" speaker was attached to, and see if the output drops.

JBL SCS125A... | Answered on Nov 23, 2010


Malfunction in the amp or to high signal on the input protect relay is cliping

JBL SCS125A... | Answered on Dec 31, 2008


First thing to check are signal cables but broken fuse telling me that problem is 99% in sub power supply unit or the amp.If you have a voltmeter and if you KNOW how to do it dissasembly it and check DC voltage on a speaker conntacts.If there is any DC present your amp is worn out.But this can be VERY DANGER because 220/110V is there so if you are not 100%sure that you can do it DON'T!!!

JBL SCS125A... | Answered on Mar 23, 2008


Hello
For the JBL Awake
I just had the same issue and i found a way to solve this :
1. Unplug the power supply
2. Plug it back while holding the [ON/OFF] button
3. The screen shows “UP9” again
4. Do the update with the JBL Music app (I did it with my old iPhone 4s plugged on the 30pin connector)
5. Finish the firmware update ... until the app tells you to unplug the power before restarting the device
(Sorry for my bad English, i’m French)

JBL Audio... | Answered on Jun 24, 2020


The controls for the JBL Charge 3 are up top and you have volume up and down, Bluetooth pair, power, play/pause, and a button to link this device to other JBL speakers. There is no skip button, but if you hit the play button twice quickly it will skip to the next song

JBL Audio... | Answered on Jun 18, 2020


To reset JBL LINK VIEW PRESS THE PHYSICAL
VOLUME UP & DOWN BUTTON TOGETHER
FOR ABOUT 8 SECONDS ....CHEERS

JBL Audio... | Answered on May 23, 2020


The service manual is posted in this but if you dont have the test gear that is required, it is not much use. https://www.scribd.com/document/143852098/PB12-JBL-pdf

JBL Audio... | Answered on Apr 17, 2020


Check there is a signal going to it.
Check the amplifier is working.
Check the bass speaker is not blown.

JBL Audio... | Answered on Dec 28, 2019


Assuming Bluetooth mode. Insure Bluetooth is enabled on the iPad and the JBL and that they are in the pairing mode.

Sometimes I find it necessary to restart a device to get its Bluetooth pairing mode to connect to the device I am trying to connect it to, such as a speaker or even my car.

JBL Audio... | Answered on Dec 28, 2019


Try doing default factory settings.
Step 1. Press the "Power" button located on the top center part of your JBL Charge 4 Bluetooth speaker. The speaker will be powered on when the LED backlight under the Power button is lit.
Step 2. Hold down the "Bluetooth" and "Volume Up" buttons at the same time for roughly three seconds. The Volume Up button looks like a plus sign. Additionally, it's important to hold down the "Bluetooth" button in the center of the device next to the Power button, as it's easier to hold down. After three seconds, the LED ring around the Power and Bluetooth buttons will briefly light up before the JBL Charge 4 powers down.
Step 3. Press the "Power" button again to turn the JBL Charge 4 Bluetooth speaker back on. The Charge 4 will instantly turn on in Discovery mode, with the Bluetooth LED blinking on and off, and the speaker making a pinging sound. This confirms that you've successfully reset your JBL Charge 4 to its default factory settings. You'll need to pair or re-pair any devices you want to play audio through the JBL Charge 4 speakers with the device.

JBL Audio... | Answered on Nov 24, 2019

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