Question about Alphasonik PMA1200D Car Audio Amplifier

1 Answer

3 caps inside exploded powere light just flashes

3 caps inside exploded power light just flashes with no output and the subs just **** in making a scratching sound. cant find a local shop for repair

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 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.

  • Master
  • 578 Answers

WELL MY FRIEND THAT NEED TO BE BENCH TESTED YOU HAVE SHORT CIRCUITED THE AMP

Posted on Aug 07, 2009

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Our jvc tv made a popping sound and now has no picture. It also buzzes 3 times and the red and blue lights flash fast on front.


Something went bye bye. Check out your power supply for bad, burned components and/or blown caps - the latter often explode in their death throes.

Nov 03, 2015 | JVC HD-52FA97 HDTV

1 Answer

JBL JRX118SP POWERED SUB. Getting power and signal light flashes when theres a signal. Just no sound??? Speaker/coil looks fine..


There's a 8-pin ic located right at the side of output devices & power supply filter caps, that is a common issue with JRX active subwoofers, hope it helps.

Jan 29, 2012 | JBL JRX 115 JRX115 15 JRX118s 118s Speaker...

1 Answer

Works for about 3 mins then no sound,the blue illumination light flashes with a slight thud coming from the sub


Remove off all the speaker connections and connect back one at a time. Check if your speaker wires have grounded or short, test the Sub seperately for any fault. If not connect and power. If you notice any distortion then there is a confirmed fault with your mosfet drivers. Make sure the +B and the ground is good when you test. Also if the signal is not distorted from the head set. Check for signs of over heating, if so there could be deteriorisation of the output drives . You must check the juctions of the mosfets for good values or else replace them. It is most possible that the fault must be in the power output than in the pre amps. So please check this out , get a familiar help if your electronics need updation. Helpful I hope. Good day

Jul 21, 2010 | Pioneer GM-5000T Car Audio Amplifier

1 Answer

Um the power light will flash then the protl. light will flash its all hooked up right but weird sounds coming out my subs.


Disconnect subs from output of amplifier and then turn on car and radio. Does amp stay on or go into protect? If it stays on then there is something wrong with the subs or how they are wired (series, parallel ) to the box and amp. If it still goes into protect then something internal with amp.

Feb 23, 2010 | Concept Car Audio & Video

1 Answer

Samsung Sync Master 914 has no picture. When power supply is only in, green light flashes slowly. When both power and vga are in, green light flashes more quickly. I hear a faint clicking sound coming...


I would check the caps with ohm meter. Make sure they all show increasing resistance. Caps can be bad without looking bad. Check output voltage on the power board, should be around 12V. If all that checks out then I'd look next at the backlight bulb. I'v repaired many monitors and the problem was almost always overheated caps on the power board. Post back and let me know.

Dec 03, 2009 | Computers & Internet

2 Answers

Sunfire Subwoofer 110 Noise on input plugin


A few more questions-
Does the sub hum without anything plugged into it except for power? If it makes a real loud hum almost a squeal then I think the rca cable between the receiver and the sub is dead shorted and needs to be replaced. If it's more of a low level hum, then it's a ground hum caused by many things, ie........the receiver and the sub being on different power circuits in the house.......sometimes diconnecting the cable tv feed as it enters the room while the sub is connected and humming to see if it stops........the easy fix sometimes is using a 3 to 2 prong ac adapter but lifting the ground on such a powerful amp could be a fire hazard.

Sep 25, 2008 | Sunfire True Sub MK II Subwoofer

1 Answer

Blinking protection light on mrv-t757 amp


Could be the power supply or output stage electrolytic capacitors.
Possibly breaking down/drying out inside.

Mar 17, 2008 | Alpine MRV-T757 Car Audio Amplifier

2 Answers

Alpine 1507


I would either try a bigger fuse, if possible, or turn the power output dial on the back of your amp down. This can be done with jus a simple flathead screwdriver. I suggestion would be to go out and buy a power monitoring cap. Wal-mart, or Tweeter usually distributes them. It'll have a LED reading on the top, with two wire hook-ups either on the bottom or the top for positive and negative, place this in between your amp and your subs in the wiring set-up.

Feb 25, 2008 | Alpine MRV-1507 Car Audio Amplifier

5 Answers

Protect light flashing/ticking


this problem sound like you have too low of power going to your amp, test your battery and make sure its putting out enough power for at least the mininum amount of power that your amp requires, you can find that information in your manual or sometimes they post it on the amp itself. i hope this info helps

Oct 08, 2006 | Infinity Reference 1211a Car Audio...

Not finding what you are looking for?
Alphasonik PMA1200D Car Audio Amplifier Logo

Related Topics:

89 people viewed this question

Ask a Question

Usually answered in minutes!

Top Alphasonik Car Audio & Video Experts

xxxxxx xxx

Level 3 Expert

4862 Answers

yadayada
yadayada

Level 3 Expert

76164 Answers

The Knight
The Knight

Level 3 Expert

74251 Answers

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

Answer questions

Manuals & User Guides

Loading...