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Re: how do i fix tis problem
First, disconnect all your speakers from the back of the unit. Then turn it back on, if it does not go into protection, turn it off and examine your speaker wires, look for frays that could touch the other binding post (most common problem). Then re connect speakers one by one; testing after each connection. If you get them all re connected and it still plays, you've solved the problem. If you get to a particular speaker and it cuts off, check the wire, then check the speaker. If theres nothing plainly visible, swap the speaker for one that is working and try again. If it still shorts, try a new wire. Beyond that, if it's still shorting, theres a problem internally with the receiver and it need to go to service. If you have all speakers disconnected and it still goes into protection, there is nothing you can do but get it serviced. There are no internal protection "fuses" Hope this helps
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Apr 24, 2013 - Uploaded by Nathan West
My MTX 600xd amp light won't even come on. ... Red light comes on. ... one.. and some times it goes into protection... once I turn the car off...
Protect mode is on because something in your speaker wiring is wrong, or you have a broken speaker, or it\'s too late and you already fried one or more of the amp\'s output transistors.
You gotta fix the problem. Not remove the safety guard and carry on with a busted machine.
Look for wires touching between the speaker terminals or on the backs of the speakers. If you done a half-ass job of wiring up then this is the most likely cause.
If you can\'t find bad/frayed wiring, then disconnect all the speakers out the back of the amp. Switch the amp on. Does it trip out? If no, that\'s good. Turn up the volume. Is it still okay? If yes, that\'s good. You haven\'t yet killed the output transistors. If it goes in to protect though, ut oh. It\'s Repair Shop Time.
If the amp is okay, then power off and add one speaker. Power on with the volume down. If it trips either at no volume or when you increase the sound, then you got a bad speaker and you just found it. Repeat the process, adding one speaker at a time. Make sure you put Vol to minimum and power off each time before adding the next speaker.
Protect mode is not something that a reset will fix. Basically it indicates that there is a problem with the final output stage of the amplifier. Normally this indicates that the output transistors are defective. In most boomboxes, the amplifier is a single IC. If you can post the model number, I can provide you with the required part and cost.
Protect is a safety feature so that you do not blow your speakers. However with it hooked up with the computer you may have surpassed the max output. If it still does this with out going through the computer, it has been damaged.