Amplifier Not powering on.

I am baffled. I have just purchased this amplifier and already the thing is not powering on. When I turn on my radio, I notice that the blue led light comes on for a split second, then shuts off. I checked the fuses to see if that was the problem (two 30 fuses), but the fuses are fine. My mono amplifier is working just fine. Please help.

1 Answer

Brian Neathery

Level 2:

An expert who has achieved level 2 by getting 100 points

All-Star:

An expert that got 10 achievements.

MVP:

An expert that got 5 achievements.

Vice President:

An expert whose answer got voted for 100 times.
Expert
156 Answers

Amplifier power problems are generally pretty easy to troubleshoot as long as you have access to a digital multimeter. You need to check the DC volts on the power terminal and on the remote terminal. For the amplifier to turn on, each terminal needs to show around 12 volts. From the sound of it, I suspect a problem with your main power wire, but the multimeter will make certain. If you show voltage on both terminals (with the black probe on the ground terminal) and the amp still doesn't turn on, then there's a defect in the amplifier.

Posted on Jun 25, 2007

Add Your Answer

Upload

Upload an image from your computer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

Loading...

Include an image. It's worth a thousand words.

prev next

Related Questions:

0helpful

1answer

Aftermarket amp

The Chrysler Dodge radio sends full volume to the Infinity amplifier using other cables it sends voltage with data to the amplifier and tells the amplifier lower or increase the volume, there is no way to tap or get the signal that is way pac build this interface for your radio CAN buss adapter hi low

Read full answer

Jun 01, 2013 • Car Audio & Video

0helpful

2answers

When installing this amplifier i already had the amplifier wire installed in the car and installed the fuse breaker with a 200a fuse in the car. But when putting the wires into the amplifier there was a...

you must of blown the fuse inside the Amp or turn on your car and deck

Read full answer

Nov 26, 2017 • Rockford Fosgate T15002 Car Audio...

0helpful

1answer

Every time i hook up my coustic car amp the radio will turn on with out the radio on

THE GOAL HEAR IS TO DETERMINE IF THE INSTALLATION IS CAUSING YOUR PROTECTION FAULT OR IS IT THE RADIO OR AMPLIFIER ITSELF HAVING INTERNAL DAMAGE. REMOVE THE RCA INPUTS AND DISCONNECT THE SPEAKERS, THEN POWER THE AMPLIFIER UP WITH THIS NO INPUT, NO SPEAKER LOAD CONDITION. IF IT STILL POWERS UP ON ITS OWN, THEN REMOVE THE REMOTE TERMINAL COMING FROM THE RADIO. IF THE AMPLIFIER SHUTS OFF, THEN YOU MAY HAVE A SHORTED TURN-ON TRANSISTOR WITHIN THE RADIO AND IT IS OUTPUTTING THE DC NEEDED TO TURN THE AMPLIFIER ON. IF YOU REMOVE THE REMOTE TURN-ON FROM THE RADIO TO THE AMPLIFIER AND THE AMPLIFIER STAYS ON, THEN THIS POINTS TO A FAULT WITHIN THE AMPLIFIER AND IT WILL NEED TO BE SERVICED. MAKES SURE THAT THE AMPLIFIER AND RADIO GROUNDS ARE 100%. LET ME KNOW IF YOU NEED FURTHER ASSISTANCE.....V

Read full answer

Jan 15, 2010 • Coustic Car Audio 401SE Car Audio...

0helpful

1answer

I would like to see a wiring dieagram for a 2005 tahoe sterio speakers

Radio 12v red/white + radio harness Radio Ground black - radio harness Radio Ignition (GMLAN Serial Data) Radio Illumination yellow (dimmer) + radio harness Factory Amp Turn-on same as power antenna wire Power Antenna white + radio harness LF Speaker +/- tan - gray +,- radio harness or amplifier Notes: If equipped, the amplifier is under the rear of the center console.

At the amplifier, the left subwoofer wires are dk. blue/white (+) - lt. green/black (-). The right subwoofer wires are dk. green (+) - lt. blue/black (-). RF Speaker +/- lt. green - dk. green +,- radio harness or amplifier LR Speaker +/- brown - yellow +,- radio harness or amplifier RR Speaker +/- dk. blue - lt. blue +,- radio harness or amplifier

that should be it **** if u need more help feel free to email me at [email protected]

Read full answer

Oct 05, 2009 • Car Audio & Video

0helpful

2answers

Where does the rem wire plug into

It plugs into the power antenna cord on your radio if your radio does not have a dedicated remote cord. The remote switch is so that you amp can detect when your radio is on and turn on too, or is off when your radio is off so as not to drain the battery

Read full answer

Sep 23, 2009 • Eclipse (XA1000) Car Audio Amplifier

1helpful

1answer

Toyota tacoma 2007 stereo wiring Colors for the following wires: Power-ignition Ground

Radio 12v blue/yellow + radio harness
Radio Ground brown - radio harness
Radio Ignition gray + radio harness
Radio Illumination green + radio harness
Factory Amp Turn-on N/A
Power Antenna N/A
LF Speaker +/- pink - purple +,- radio harness or amplifier
RF Speaker +/- lt. green - blue +,- radio harness or amplifier
LR Speaker +/- black - yellow +,- radio harness or amplifier
RR Speaker +/- red - white +,- radio harness or amplifier

Notes: If equipped, the amplifier is on the passenger side rear cabin wall.

Read full answer

Sep 13, 2009 • 2007 Toyota Tacoma

3helpful

2answers

Wiring diagram for a LXA400 Jensen power amplifier??

Power wire to battery
Ground wire to body of car
Remote wire to power antennea wire on radio or power amp wire on radio if you have aftermarket radio
get back with me for any more ?'s

Read full answer

Jun 05, 2009 • Jensen LXA400 Car Audio Amplifier

0helpful

1answer

Speakers cut off when bass goes up...

you may be running 2 low of ohm load

Read full answer

Feb 14, 2009 • Kicker ZX400.1 Car Audio Amplifier

0helpful

1answer

Sony XM-1652Z

What head unit do you have?
Is there a dedicated subwoofer output?
If not, have you switched the rear output to sub output?
Is the amplifier set to LPF (low pass filter), and the gain turned up?
Many things can be wrong, but the fact that there is anything coming out of the subs is a good thing.
Start at the beginning - Head unit, then check amplifier gain/crossover setting.
If you are using a hi level adapter on factory radio, is the Bass on the radio up? is the output gain on the convertor up?

Read full answer

Jan 13, 2009 • Sony Xplod XM-1652Z Car Audio Amplifier

1helpful

1answer

Radio comes on but i cant hear any music

You may be connecting this stereo into an amplified system. If the original factory stereo worked with the factory amplifier, your stereo is not turning the amplifier on. If you purchased the aftermarket wire harness that mates to the factory stereo connector, hook up the "Amplifier Trigger" wire, this wire is usually blue.

Read full answer

Oct 16, 2008 • Pioneer DEH-P3500 CD Player

Not finding what you are looking for?

View Most Popular

PDX-4.100 Car Audio Amplifier

Car Audio & Video

Aftermarket amp

Car Audio & Video

Open Questions:

0answers

alpine pdx-f6 how to bridge

Read full answer

Be the first to answer Jan 05, 2012 • Alpine PDX-4.100 Car Audio Amplifier

0answers

On my alpine pdx-5 amp a red light comes on when i turn my head unit on it plays music for about 5secs then turns off and the red light comes on

Read full answer

Be the first to answer Sep 20, 2010 • Alpine PDX-4.100 Car Audio Amplifier

201 views

Ask a Question

Usually answered in minutes!

Are you an Alpine Car Audio and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

PDF Manual

. PDX-4.100 Car Audio Amplifier Manual

PDX-4.100 Car Audio...

Have a manual for Alpine PDX-4.100 Car Audio Amplifier? Or just drag it here!

Related Topics:

Amplifier Not powering on.