Question about Ultra Linear UL-2200D Car Audio Amplifier

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What does it mean when the led light on my amplifier turns on then quickly shuts of. I had my car stereo system going yesterday and installed a new amp today and it started happening, so I reconnected the old one and the same thing occurred. Could it be what the ground wire is grounded to?

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Yes always make sure you have a good ground

Posted on Aug 12, 2010

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1 Answer

Power turned on yesterday but now doesn't work. I didn't alter the power source.


First of all, find out whether that ground wire is fastened to metal. Next, with the RCA cables disconnected, try to get the amplifier to turn on. If no luck, could there be a fuse for the Kicker that may have blown? Finally, go back over the installation. A connection may be failed or grounded.

Nov 17, 2013 | Kicker 2011/11 Hs8 Car Audio 8"hideaway...

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I just bought some Performance teknique ICBM 500W and installed them and have a panasonic CQ-RX100U 50w x 4 stereo, its on a 91' ford explorer with a factory amp but not sure if connected. when i higher...


I had a 97 explorer came factory with a JBL system, and had a factory amplifier, I had to get rid of the factory amplifier and by pass it to get my new radio to work... my factory amp was in the very rear passenger under the plastic...... mine worked fine until I installed a new stereo (replaced stock one) and because my stereo didnt contain whatever it was to make the amplifier turn on, had to go bypass the amplifier and I unplugged everything I could find on it. Hope this may provide some clues if any

Nov 01, 2013 | Car Audio & Video

1 Answer

I have a 2003 Nissan Sentra and when I'm driving all the gauges shut off momentarily and come back on! What can cause that to happen?


hmmm does it do when the turn signal is triggered or when the headlamps are turned on? or possibly when you are stepping on the brake? by chance have you had an aftermarket stereo system installed? it would really help to know exactly what you did in the car a split second before it happened? i am not saying that it is driver error but it is likely a short in the wiring or a poorly installed stereo system. alot of the new cars come with audio systems that already have amplifiers installed in them. what the average person doesnt realize that all the wiring to the entire car is also ran through that amplifier. most new cars wont even start if you try to take them out actually. so if a new audio system is installed with a replacement amp or a second one installed for subs and every wire isnt perfectly secure and tight it is easy to get a short or a hiccup in the system. also you could have a plug on the back of you instrament panel that could be going bad or be lose

Jul 15, 2012 | 2003 Nissan Sentra

1 Answer

My amp stopped workin, when i turn the stereo on, the green light is on, then when the music starts to play it turns red and stops working,


The red light on amplifier relates to power supply while the green light is indication of sound functionality. An amplifier that allows sound to generate should display both red and green lights. Howeever, some amplifiers would display only green as long as the sound is functioning.

Solving the problem

First, a red light still on means the power connections to the amplifier is fucntional least requirng repairs.

Second, the green ligh should turn on once the stereo were tuned up to produce sound. If the stereo is still on only least produce sound on the amplifier, check on the connection wires between stereo to amplifier that may have disconnected due to woofing or dubbing sound generals with unfirm wiring.

Third,

Jan 28, 2011 | JVC KS-AR7501D Car Amp

2 Answers

My phoenix gold x200.4 amp turns on but the protect light keep on flashing


  • What does it mean when the LEDs flash on my amplifier?
    With most recently produced Phoenix Gold amplifiers, a flashing/blinking LED is an indication that the unit is in protect mode, usually due to an overcurrent condition caused by an internal short, external short (speakers), or low impedance. Overheating will also cause the amplifier to shut down temporarily.

    If amplifier remains in protect mode, power down the amplifier, disconnect the speakers, and power up again. If LEDs continue to flash, there is probably an internal problem with the amplifier that will require service attention to fix.
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    Need to know the wires to install a deck for 97


    Red is power to from ignition to cd deck
    Yellow is direct power from battery to cd deck to hold the memory.
    Black is ground
    Blue is only needed if you are hooking up an amplifier.
    I always suggest buying a wire harness quick connect system for $5, then you won't have to cut origional car wiring. If by chance you are taking the original wire route, then go to installer.com to find which wires on the car are for what.

    Sep 02, 2009 | 1995 Toyota Celica

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    Led light turns red and the turns off but the amp


    In Car Amplifiers have 3 main power wires:
    Live +12v (Fused wire direct from the + side of the cars battery)

    Ground (Direct to car earthing point (anywhere cleaned of paint for good connection)(I tend to use boot lock)

    Remote (This wire should be connected with the switched live wire coming from the back of the stereo, this is Only live when the cars ignition is on)(there should be 2 power wires coming from the stereo usually red live +12v and yellow switched live, depending on the cars original wiring, try moving the remote wire from where you have it, to the other live wire

    Hope this is of some help
    Aaron

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    My amp only powers the subwoofer when the radio is on but wont when the cd player is on


    The person(s) who hooked up your system made a boo boo. They wired your remote turn on lead to the power antenna lead instead of the amp turn on line (both are blue and easy to mix up). Thus when your radio is on it sends a signal to the amp and the amp turns on, but when you set to CD the signal goes away and your amp shuts down. Easy fix, just re-wire the amp turn on lead and the problem will be fixed.

    Jun 24, 2008 | Rockford Fosgate P3001 Car Audio Amplifier

    1 Answer

    Car audio


    You need to use a multimeter to see if the remote turn-on voltage at the amplifier is dropping to near 0v as soon as you switch off the head unit. If it's not, you need to determine why it's not switching off quickly.

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    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.

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