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I have several car amplifiers that doesn't rower up at all. Is this an easy fix or shall I scrap them?

Nither of them comes on when I wire them up?

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SOURCE: TV doesn't turn on.

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Posted on Jun 03, 2012


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1 Answer

Can someone please tell me if this amp is an easy fix?

I would Scrap it most of the parts look fried from this picture

May 12, 2015 | MTX RFL600D Car Amp

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My amp doesn't turn on but all wires are plugged in. I tested it right before I bought it, it's grounded to a bolt in the chasis. What could be wrong?

If you have a voltmeter or a 12V trouble light, check to see there is 12V at the remote terminal when everything is on. The remote wire coming out of the head unit cant supply a lot of current (usually around 1/2 amp). even a quick short to ground on the remote wire can render it useless.

Jan 30, 2013 | Rockford Fosgate Punch P5002 Car Audio...

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Ours does not finish cycle either!!! The machine runs through the cycle up until the point where water should enter the "brew group". The coffee doesn't come out. What shall we try?

I just fix that problem by opening the water flow meter by some coffee grinds, also had a little coffe grind jamming a check valve that is at last of the water pump flow, now is running pretty well

Dec 20, 2012 | Saeco Easy Espresso Machine

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Horn doesn't work

Make sure that the wires are grounded. One should be connecting to the horn itself, while the other one should be bolted onto the car nearby. I had this exact problem with my '03, and I felt like such an idiot when I finally figured out that my second wire wasn't grounded

Sep 02, 2012 | 2001 Mitsubishi Eclipse

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TV doesn't turn on.

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Jun 02, 2012 | RCA 27V520T 27" TV

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What guage cable should i use for a Kenwood KAC 628 amplifier

I suggest 8 gauge wire. If 4 gauge doesn't cost much more, than get it. Then you will always have room for an amp upgrade.

May 21, 2012 | Kenwood KAC-628 Car Audio Amplifier

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Not powering on

To troubleshoot amplifiers when it's not starting up

check the base to base voltage of driver transistors might be too high.

Make sure that the amplifier's ground wire is tightly attached. If it doesn't look too good then take it out and clean it. Use a metal brush to clean that area.

Low power may cause your amplifier not to turn on. Make use of voltmeters to check if your amplifier is getting the right amount of power for it to work. Amplifiers need 110 volts or less to function if the power coming in does not reach that it means you have la defective power cable. If the power is alright and it reaches a minimum of 110 volts, and your amplifier still doesn't turn on that means that there is a problem with its power supply. Checking an inline fuse helps you to determine the appropriate amp ratings when you troubleshoot amplifiers. This is the best way to troubleshoot amplifiers with power problems.

To troubleshoot amplifiers that seems to be on standby mode

Look into your input sensitivity. An input control allows you to match output voltage that is coming from the main unit going to the amplifier then to the stereo speaker. The amplifier shuts down if the gains are
adjusted too high. This is simply because it overheats when it is set too high thus it automatically shuts off. When you troubleshoot amplifiers and this happens you will notice that the volume gets lower even if the setting is too high. Be aware of the optimal levels of the components when you troubleshoot amplifiers.

Your speaker's electrical impedance may also contribute as to why your amplifier may be turned on but doesn't seem to work. Impedance is the amount of current which flows with a specific voltage throughout the transistors, capacitors, etc. Just see to it that your amplifier and speakers equal in impedance range when you troubleshoot amplifiers. Use the voltmeter to check the impedance range when you troubleshoot amplifiers.

Take care..

Sep 14, 2011 | Audio Players & Recorders

1 Answer

Power light on but no sound/bass? I have 2 10" 1000 watts jbl sub. i bought this amp from somebody. it came with a 25 fuse, do i need to have 30 for it to work or it doesn't matter?

I would check the subs for resistance. If the Voice Coil of the subs shows an Open Circuit, your subs are blown. It is possible that the wiring inside the box has come loose, or the wiring from the amplifier to your sub box is loose or disconnected. I would then check the RCA or signal wires from the Head Unit to the Amplifier. The fuse is fine, and wouldn't make a difference in your situation.

May 17, 2011 | Soundstream XTA880.2 Car Audio Amplifier

1 Answer


HI SOUFBOY , Theres a few things you need to check , First make sure that your amplifier is getting an audio signal form your head unit,Check all the wires for breaks in the amplifier input, secondly make sure that your 12 inch woofers are still connected to the amp check all the wires . Thirdly check your woofers are they blown ? . The best way of grounding your amp is by scrapping all the paint on a spot on the car body inside the trunk or wherever you have it and making sure the ground wire is securely screwed onto the car body on that spot ..

Mar 19, 2007 | Rockford Fosgate Punch P5002 Car Audio...

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