Question about Alphasonik PMA1200D Car Audio Amplifier

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Protection Light I installed a new capacitor into my amp and then all of a sudden the protection light comes on. What did i do do wrong.

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When the protection light comes on means either you have something like you power and bround backwords,or you have speaker wires touching somewhere..

Posted on Dec 04, 2008

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Posted on Jan 02, 2017

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1 Answer

Kicker 1000.1 amp's protection light is on


it shouldnt cause it flash the protection light but you are correct in thinking they have wired it wrong ...

the ground of your amp should be grounded to the metal of your car not the battrie ....

Jan 26, 2010 | Kicker ZX10001 Car Audio Amplifier

1 Answer

Protect light keeps coming on when i give my jensen amp power


Eith some wires touched, you dont have big enough fues or you have somehting hooked up wrong

May 28, 2009 | Jensen LXA300 Car Audio Amplifier

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I have a rockford fosgate 501bd amp the protect light comes on when my deck turns on even with no speakers connected


un hook the subs and let the amp sit there on if the protect light shuts off you wired your subs wrong if it doesnt go off tun it off then back on with no sub music all the way down then slowly turn the music up if the light is off then comes on you need new rcas

May 03, 2009 | Rockford Fosgate Power 501BD Car Audio...

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I HAVE A SONY 55 INCH TV THAT IS NOT WORKING.


Symptoms shows lamp is broken and TV requires new lamp.
Let me know exact model of TV to provide you lamp purchase info.
You can replace lamp easily as procedure is written in user manual.

Mar 28, 2009 | Sony Grand WEGA KDF-55XS955 55" Rear...

1 Answer

Led light is flashing red and yellow and tv wont come on


If there is a flashing led on front of the TV, that indicates a fault condition.

The flashing light indicates a diagnostic state called protection.
When the Monitor goes on protection there are only two possible causes.

1The internal circuits are jammed because of electrostatic chargesaccumulating on capacitors, or because of a wrong voltage read by themain chip on your monitor controller board. this started the protectioncircuit.

2 The protection circuit detected a wrong voltage or abroken contact, identified an internal fault and kicked in , startingthe flashing light.


If you are in situation one, then theTV will reset just unplugging power cord for one or two hours,sometimes even minutes.

If you are in situation 2 , then there is an internal fault.

Commonfaults that can occurr suddenly are a blown capacitor on power board, a convergence IC has blown, or a faulty on Digital board.
check also the video cable, if the cableis shorting, or the connector is bad, you can get same flashing statebecause of the video cable.

Check also connectors, try moving the video cable, and if the cable is not built in, then also try a replacement cable.

If under warranty contact SonySony Global - "Contact Us".

If you want to repair at your own expenses, just locate any good qualified repairer.


Regards

Mar 07, 2009 | Sony Grand WEGA KDF-42WE655 42" Rear...

1 Answer

Thumping speakers - no power light is on - wired correctly


the amp is going into protect mode due to something wrong in the amp or some thing in the wiring to it ooh yea if you are getting 18v power to the amp that is way to high it should not be higher then 15v if the amp is in protect mode it will not play at all.

Nov 02, 2008 | Visonik Dual Bass Box with Amplifier Car...

1 Answer

Amp Power light will not go on. Protection light is lit- Thump sound in speakers


It probably has shorted output transistors. To eliminate other possible causes, read through the following page.

Amplifier in Protect Mode - Troubleshooting

Let me know if you have any other questions.

Oct 31, 2008 | Visonik Dual Bass Box with Amplifier Car...

2 Answers

No audio-amp protect light come on then went


You need to check the DC voltage across the B+ and ground terminals. You also need to check the DC voltage across the remote and ground terminals. If the voltage is less than 11 volts, you need to check the B+ supply and remote wiring for breaks or open fuses. You should also check the ground connection to confirm that it's not loose.

 

If the voltage is OK, the output transistors are likely shorted.

Oct 21, 2007 | JBL GTO75.2 Car Audio Amplifier

2 Answers

Protection Light irritation


If the amplifier goes into protect when there are no speaker wires connected to the amp, the amp is likely defective. The most likely culprit is shorted output transistors. If it's new, return it to the place of purchase for repair/replacement.

Sep 28, 2006 | Lanzar VIBE266 Car Audio Amplifier

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