The protection LED on the amp is always on.and the green is off
I have an MOQ-vanquish 1200Watt amp...there were two 220uf,16v capacitors blown..I replaced them with 220uf,10v...and the amp started working. But the red LED, next to it written protection is on but the the amp does not work. It never actually worked since it was given to me by a friend..could it be that i used a different cap?please help..couse I wana **** up ma ride yo..
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amp is in protect mode. check your wiring and make sure your sub is wired properly for ohms. dual 4 ohm in parallel = 2ohm. dual 4 in series is 8 ohms. dual 2 ohm parallel= 0.5 ohms and in series 4 ohms. check ground and power wires. make sure sub isnt blown. a blown sub WILL cause this on any amp.
If you've overheated it a number of times, it's possible that you've damaged the amp and it's trying to protect itself even though it's too late. Try disconnecting the sub from the amp. If there's no change, then there's a problem within the amp. It could be a thermal switch or possibly a stressed amplifier module.
Disconnect all speaker wires from the speaker terminals of the amp and disconnect signal cables from the amp. If it powers up, the wiring needs to be checked. If the protect light remains on, the amp likely has blown output transistors.
With your multimeter set to DC volts, the black meter lead on the ground terminal of the amp and the head unit on (so the amp will have remote voltage applied), touch the red lead alternately to the B+ and remote terminals of the amp. If the voltage drops below ~11 volts, you need to check the wiring feeding whichever line is too low.
If the voltage remains near or above 12v, disconnect all speaker wires and signal cables from the amp. If it powers up, the wiring needs to be checked. If it still shuts down, the amp likely has blown output transistors.
There's hundreds of capacitors in an amp... The value should be printed right on them. It will have a Farad rating (F) or usually MICRO farad (uF) and a voltage rating (V).
Looks like "16V 47uF"...
Be aware that there's likely to be more problems than just the caps...
Check the amplifiers fuses. Some amps have speaker fuses that leave the LED on if blown. Check for continuity on the voice coils of both subs. Check for 12 volts on the remote turn on line from your receiver. If all of the above are good, the amp is probably toast.
1. Did you witness this amp ever working if not then you may have a blown amp. Hook up the speakers, get a portable player with a head phone jack get one of those cables with a headphone plug on one end and RCA's on the other plug the portable player into the amp and hit play. If sound comes out then your problems are elsewhere. If not I'm afraid your amp is probably toast. If the OHM rating of the speakers are too low for the amp then the amp will go into protect. This will be indicated by the protect LED lighting up or the power led changing color from say green to red.
Disconnect the speaker wires from the amplifier and see if it still goes into protection mode. If it still goes into protect with the speakers disconnected, there's a problem with the amp; if not, you may have a blown speaker or a shorted speaker wire.