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Amp lights come on but does not have output - Hifonics Brutus BX 1605D Car Audio Amplifier

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During live use, fault light comes on 4 out of 5 JBL drive pack amps and cancels all output. What causes the fault light? How do I troubleshoot this issue?


Hello there.

You need to ask again but give make AND model number details of what speakers and Amps you have and how configured / connected/

First thoughts from what you say are Overload / OverHEAT of Amplifier output Stages so Automatic shutdown of Amp until cooled..

Keep 'em Cool and DONT overload Amp inputs.

Sep 21, 2014 | Audio Players & Recorders

1 Answer

I have a crunch p1500.1 amp and it turns on and lights up but no sound comes out of the subbs and the protect light isnt on


There a few different issues that could be troubling you.

1. The Amplifier's outputs are no longer working
- To test this, connect the negative probe of a digital multimeter (DMM) to the negative (-) terminal of the amps speaker output. Connect the positive probe of the DMM to the (+) terminal of the amps speaker output. The output terminals you are referencing should be the output to the same speaker. Set the DMM to AC Voltage/lowest setting. If you read AC voltage than the outputs are ok. If you show no reading then the outputs are bad. Stop here and get the amp repaired or use as a paperweight.

2. Check the RCA connections behind the radio. They may have come undone. If so, re-connect and dance for joy as you once again enjoy music in your car.

3. Confirm that your RCA connections to your amp are plugged into the INPUT and not OUTPUT or THROUGHPUT. If in the output or throughput then move to the input. refer to the last sentence in #2 above.

4. Your RCA connections/or RCA cables are bad. Use the above mentioned DMM to check for continuity in the RCA's to ensuyre they are in working condition. You can also use the DMM set to ACC voltage like in #1 above to check to see if voltage (speaker signal) is being sent to your amp.

5. Make sure the amplifier's gain setting is not turned all the way down. If so, adjust accordingly.

If none of these solve your issue then most likely your amp is beyond the do-it-yourself repairs.

Dec 22, 2010 | Crunch Car Audio & Video

1 Answer

Power light on, no sound through sub, I'm reading high ohm output


Contact Eric @ Capital Audio & Electronics Repair 850-339-1130 we repair all name brands & all models Located in Tallahassee,Fl

Mar 15, 2010 | Jl Audio 500/1 Car Audio Amplifier

1 Answer

I have a CS1000X . Channel B has the DDT light engaging at relatively low input signals. The B channel has reciently been subjected to a shorted output cable. My guess is that one or more of the output...


The unit is only partially smoked. There is a problem in the final output stage, not enough to shut it down completely, but close. The DDT light indicates that the amp is outputing full power. I suspect that there is a partial short that is presenting itself as a low impedence load to the output amp section. This is causing the amp to work really hard and thus the DDT light kicking in. I think you will find 1 transistor shorted or partially so. Replace ALL of the output transistors for that side and that should resolve the problem. Check the driver transistor pair as well. It is important to replace all of the transistors on that side, even if some check OK with a checker.

Dan

Nov 08, 2009 | Audio Players & Recorders

1 Answer

Amp lights up, but no power to outputs.


channels mey be burned....does the amp smell like burnt electronics

Nov 07, 2009 | Kenwood KAC-8104D Car Audio Amplifier

1 Answer

Audiobahn A6601T amp. Protection light on. No Sound output.


Disconnect all speakers from the unit and then switch it on. If the protection light is still on then the output stage in the amplifier is blown.

May 12, 2009 | AudioBahn A6601T Car Audio Amplifier

1 Answer

Re: Pyramid PS-36kx power supply buzzer sounded,red light came on


Hi! I saw your question, and maybe this will help. I also have a Texas Star 100w amp, and this same power supply. Even though the nominal draw for your equipment is way below the rated amp flow of the power supply, when you key up, and the output on the amp is at max, you are drawing the limit of your power supply! Try running this setup at a lower linear output. You don't need the full 100 watts to get out! 60-80 watts is aplenty! You should start at a low output, and slowly increase the output(while keyed up), untill the power supply starts to complain.(buzzer/light). This is what your limit will be. The only other cure, is a MUCH bigger power supply. Unfortunately, I cannot afford a 60-90 amp supply, so this is what I am forced to do to use the one we have. Also,keep your cb's output very low when using the linear amp. These amps are supposed to get a low signal from your radio, or the linear amp is overdriven. (noisy and unstable. Hope this helps you! 73's to you! jimsjinx

Apr 30, 2009 | Pyramid (PS36KX) 600-Watt Power Supply

1 Answer

Problem with amp...


In virtually all instances where the protection light is illuminated, the amplifier has gone into protection because the output transistors are shorted. To eliminate external wiring problems do the following.

Disconnect all speaker wires from the speaker terminals of the amp and disconnect signal cables from the amp. If it powers up, the wiring needs to be checked. If it still goes into protect, the amp likely has blown output transistors.

If it does have blown outputs, it's is likely due to the speaker wires shorting together when the woofer was out of the vehicle.

Dec 29, 2007 | Jensen XA4150 Car Audio Amplifier

1 Answer

Red light


Have you disconnected the wire from the speaker?? and the amp?? Maybe the wire is pinched as I suggested?? If not then yes I would sy the peaker could be bad or the amp output on that channelis fried.

Jun 13, 2006 | Sony Xplod XM-554ZR Car Audio Amplifier

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