I recieved a Power Acoustik amplifier for Christmas a few years back. When I first set it up, it worked great. About three weeks later, however, it triggered the red protection lamp. For a while, it would work if you jostled the remote line. Now, nothing seems to turn it on. If you unplug the RCA cables, the light turns off, and the amp is completely unresponsive. (The light is supposed to be green when active) Also, this "Red Light" issue only applies to pre-amped RCA outs. If you plug it into the standard RCA outs, nothing happens. Also, disconnecting the subwoofers has absolutely no effect either.
Originally, I had a Pioneer Premier DEH-P560MP
Then, I temporarily replaced it with a Dual XDM6810 with Preamped RCA outputs.
Mosfet, Bridgeable, Crossover, HPF/LPF, Bass Boost, 2ohm Stable
Dual XNBP12D 1100W Bandpass Sub System; 4ohm impedence
Any information would help. The tech support at Power Acoustik simply told me "Either your ohm rating is off, or your amp is junk". That suuuure does help. I've toyed with the idea of crackin open the case and hotwiring over the power protection circuit.... But something makes me thing that that's a horrible idea. Haha. Thanks.
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Re: Amplifier does not turn on anymore.
You cannot wire "over" or "around" the protection circuit. Even if you know enough to know what the circuit was, you shouldn't bypass it and force the amp to turn on. It is doing exactly what it is supposed to do, which is protect the amp and your speakers from catastrophic failure and possible fire or damaged speakers. If you are bridging your speakers then you may have put too much load on your outputs and fried them. If you put two 4ohm speakers in parallel, you will have a 2ohm load and if you then connect that 2ohm load to a bridged amp, you will be subjecting each of the bridged output channels to a 1ohm load because they will share that 2ohm load. This of course will blow the outputs and it usually takes about one month to do it. In your case it sounds like it only took 3 weeks. The long and the short of it is that it is now time to take your amp to the shop for some repair time. Sorry that it's not good news.
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Sounds like an over current condition. Your sub may be the problem. Does it go into protect mode when it cuts out? remove the sub and turn up the volume and see if it cuts out when you keep increasing the volume. If not, then it may be that the sub shorts out when turned up too much, kicking the amp into protect mode. If it still cuts out, then it may be the amp. Try another sub if you have one or borrow one from a friend.
use a multimeter to see if the amp has good power wire and remote turn on voltage. then check the ground and make sure its a good strong ground. check the sub to make sure its not bad. make sure it reads whatever ohm its supposed to. anything less than 4 ohms will clip the amp if bridged. if alll that is good then the only thing left is the amp. it sounds like the power supply is bad but check everything else just to make sure. good luck.
i am assuming the amp is not under warranty, if it is, rma it... if not, you have nothing to lose from trying this.
hitting it and having it work usually means something is loose or broken, remove the case and extract the circuit board.. clean all parts thoroughly using a good electronic or contact cleaner, i use crc qd electronic cleaner as it is cheap and available at most auto supply stores, just make sure whatever cleaner you use is not industrial duty and is plastic safe.
after the entire thing is cleaned (coils, caps, anything resembling dust), check with a magnifying glass for any broken solder joints, you can also very lightly touch components and see if they move.. this sounds like either broken solder joints, extremely dirty contacts, corrosion, or dry caps.. you can usually locate dry caps by looking for corrosion around the cap and discoloration on the top of the cap.
hope this helps, and hope you get it running; the ps2 amps are pretty nice when it comes to accurate sound reproduction. trin
A few weeks ago my set started flashing to a black screen. Now a couple of weeks later, i have no picture, but the set turns on and i have sound. The standby light is flashing. I purchased the set in 2000 so it is seven years old. This is the first problem. Could it be all three of the bulbs?
Could it be all three of the bulbs?
as you say that sound is ok that means your power supply &high voltage section is ok.
please check chroma ic luminance section or system control section stand by ckt
Check the wiring at the speakers themselves. It's possible that while you were moving the box one of the speaker wires came loose and shorted against the other terminal. A shorted speaker wire or damaged speaker will cause the amplifier to go into protect mode. If you have a digital multimeter with a resistance feature, you can test the resistance between the positive and negative terminals for each speaker.