Question about Dual Car Audio & Video
A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
There is a problem with one or both of the audio amplification circuits. The amp is going into "protect mode" to protect your speakers. I'm afraid there is no simple fix. this will need to go to the shop to be repaired...
...unless you have been tinkering with the speaker connections recently. In which case, make sure all connections are sound & there are no wires touching other wires. This causes a short circuit. Leave it disconnected from the mains overnight. There's a slim chance it might spring back to life tomorrow.
Good luck & let me know how you get on.
Posted on Jan 10, 2008
Protection means that the output stage of the amp has detected a problem. Usually this is because there is DC present on the speaker line indicating blown outputs. Figure on $25-$45 for parts plus the local labor rate for the repair.
Posted on Sep 09, 2008
SOURCE: Protection mode
It's normal for some amps to go into protect for a few seconds when initially powered up. If it remains in protect mode, it may have shorted output transistors. To eliminate other possible causes, read through the following troubleshooting page:
Amp in Protect Mode - Troubleshooting
Let me know if you have any other questions.
Posted on Dec 11, 2008
Tips for a great answer:
It is possible that the amplifier had encountered a fault with a higher current drain which had triggered it to a protection fault condition. The fault can be with your output drivers. Please check for short on the outputs fitted for both the channels. Use a meter after disconnecting to check for short in the drivers. Disconnect the positive and negative voltages to the output and see if the protect changes. Even a fault in the preamp stages that drives in high current into the output can shut the Amplifier. Sometimes this can be a noise which can be a HUM or HISS before the protect works. Faulty capacitors in these circuits also can cause similar issues and needs close observation.You need to confirm and replace the specific stages or outputs. If not there can be issues in the mother board. Maybe the protect circuit by itself is shutting off due to a faulty bias or there is a leak in any voltage/current sensing circuit. Also disconnect the speakers and test, if the amplifier comes out of the protect mode then check for short on the speakers.
Nov 30, 2011 | Denon AVR-4806 Receiver
Dec 10, 2010 | Kenwood KAC-X401M Car Audio Amplifier
May 09, 2009 | Sony XM-1252GTR Car Audio Amplifier
Mar 25, 2009 | Sharp Audio Players & Recorders
Mar 07, 2009 | Visonik Dual Bass Box with Amplifier Car...
Nov 02, 2008 | Visonik Dual Bass Box with Amplifier Car...
Aug 07, 2008 | AudioBahn DUB Mag Audio DUB2502 Car Audio...
Mar 21, 2008 | Car Audio & Video
Mar 01, 2018 | Dual Car Audio & Video
237 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: