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Accurian Amp Stuck In Protect Mode


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#1 of 6 OFFLINE   ferrari_john56

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Posted August 11 2014 - 11:32 AM

I have an Accurian ASR-5046 Home Theater Amp one night i tried hooking up LEDs to it (im not an electrical engineer) but i did something wrong to the point when where i touched the wires the circuit breaker in my room tripped after trying to turn it back on it would make my speakers freak out for a second then go into protect mode it still turns on but never more then a couple seconds im thinking a fuse maybe? 



#2 of 6 OFFLINE   Robert_J

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Posted August 11 2014 - 01:30 PM

Did you try disconnecting the speakers from the amp?  Will it turn on then?

 

I had an amp that would turn on and immediately throw its internal circuit breaker.  That was caused by blown transistors in the output stage. 


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#3 of 6 OFFLINE   ferrari_john56

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Posted August 11 2014 - 04:12 PM

With the speakers unplugged it does the same thing turns on for a couple seconds then goes into protect mode and shuts off where can I find the transistors

#4 of 6 OFFLINE   Robert_J

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Posted August 12 2014 - 01:26 PM

An amp is an amp - Your amp's layout will be different but the parts are pretty much the same.

 

I had a car amp that was blown and the transistors needed to be de-soldered from the main board and replaced with the same or equivalent models.  There are videos on how to do this as well.  You can even watch the car audio ones for this because the process is the same.  What I noticed is that each chip that needed to be replaced was cracked open.  It was easy to see with a magnifying glass and a good light.


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#5 of 6 OFFLINE   ferrari_john56

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Posted August 12 2014 - 01:39 PM

What chips do you mean exactly?!

#6 of 6 OFFLINE   Robert_J

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Posted August 12 2014 - 02:05 PM

You will look for a bunch of 3 prong transistors connected to a heat sink.  There are some videos on how to test them.  If I remember, you check the right and left prong.  If you have resistance in the 1000+ ohms level, it works.  If you have no resistance or around 3 or 4 ohms, it's shorted out and needs to be replaced.  Or, I could have my values backwards.  I've only done this once and followed a You Tube video to figure it out.

 

Transistor_y_disipador.jpg


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