Question about Phoenix Digital PD-397 Car Amp

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Not sure what model it is its the red one the protection light comes on when the gain is turned up

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Be sure your wiring your speakers correctly, ecspecially if their dual voice coil woofers. Had the same problem.

Posted on Sep 23, 2009

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1 Answer

Kenwood kac 628 red light comes on and no audio output


The red light you describe on your amp, is the protection mode warning light. An amp goes into protect for many reasons. Here's a checklist.

1st check the fuse (s) on your amp and make sure they are not blown.

2nd check the inline fuse next to your car battery (if you have an inline fuse)

3rd, disconnect the speaker wires with amp on, does the light go off?

4th check your ground, this may be ok if you have tried another amp with the same wires.

5th.if none of these turns the protect mode off, it may be an internal fault.

you may have blown transistors and it is a tricky job to repair and costly.

Jan 28, 2013 | Kenwood KAC-628 Car Audio Amplifier

1 Answer

The Ground wire is hooked up right but the red light wont go off and stay green so the amp will work. It is very frusterating all the cables are the right size its is a 1000 watt amp. I have two 500 watt...


Sounds to me like the amp is going into protection mode. Try placing one sub on the amp with very little gain. One of the biggest reason why this happens is because the subwoofers are wired wrong. What is the brand and model number for your amp?

Apr 14, 2011 | Car Audio & Video

2 Answers

Hello, i have a nitro bmw 486 amp. i use it to power my 2 subwoofers in my trunk. its a very good amp and sure does its job, but randomly the light will turn red, which means protect, and my subs will shut...


Disconnect all speaker connections and rca cables. Leave power, ground and remote wires intact. Try turning on again. If you still have a protection light your amp is faulty. Hopefully you have warranty D .A thumbs up would be greatly appreciated if this answer is helpful to you. nitro-lv2kkrmxrai4iihdvw4m3np2-1-0_0.jpg

Jul 31, 2010 | Nitro BMW-486 Car Audio Amplifier

1 Answer

My jvc ax6300 amp is wired in and the protection light is on. no sound from the subs?


Try to rest amp (turn off power) be sure subs are disconnected. Se if protection light comes on. If it does the amp needs to be serviced porbably a burnt component. If the protection light does not come on, connect one sub at a time to see if either one surges. Could also be that the gain is turned up too much.

Nov 06, 2009 | JVC KS-AX6300 Car Audio Amplifier

1 Answer

Help!


Double check the ground wire to make sure it is grounded to an unpainted surface of the car. Otherwise turn cd player bass down and amp gain at no more than 3/4

Aug 24, 2009 | Lightning Audio Bolt B2.150.2 Car Audio...

1 Answer

Amp on "protect" mode


Hi, what you need to do is unplug all the connections to the amp. The amp goes into protection when the circuitry over heats.\
First decrease all your gains to minimal volume.
Connect your 12+V, remote, and ground.
See if the protection light comes on then.
Next plug in your RCA cables.
Check protection light.
Then plug in your subwoofer cables.
See if you are still in protect mode.
Hopefully everything works alright again.
Just slowly increase the gain to see what the cut-off is. Make sure you aren't dropping the ohmage too low on the amplifier. Check manual for correct wiring and such.

Feb 08, 2009 | Phoenix Digital PD-394 Car Amp

1 Answer

What does it mean when the red light come on


The amp is being over-loaded on the circuitry board.
You need to double-check what ohms the amplifier can handle.
Make sure the gain on your amp is not turned up too high.
Make sure you have a good ground.
Make sure the RCA cables are not shorting out.
Hope this helps.

Feb 07, 2009 | Sony Xplod XM-1652Z Car Audio Amplifier

1 Answer

Got a red light on amplifire how do you reset amp I have an Insignia NS P2000 I believe with two 12-inch Insignia subs & I have a similar problem with the indicator showing that the amp is in protection...


Have you tried turning your gain down a little and then slowly turn the gain up while the sound is on!!!! There could be a pinched wire in you speaker wires!!!! Make sure your remote wire is not touching any metal or ground wire!!!!

Jan 18, 2009 | Car Audio & Video

1 Answer

How to fix clipping


turn down your gain levels. is the protection turning on? also make sure u aren't bridging.

Apr 20, 2008 | AudioBahn A2300HCT Car Audio Amplifier

2 Answers

Overhaul light (red) stays on!


This is not a ovehaul light. It is called the protect indicator. It kicks in when the amp detects a fault on it's output. Disconnect the speaker / sub. Power up the amp and see if the light goes out. If it does you Sub is toast and needs to be replaced. If it stays on then the amp is done.

Jun 22, 2007 | Lightning Audio LA1.300.2 Car Audio...

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