Hi; I used to get this when my speaker wires were touching each other and my 3yr old cranks the volume to Max. Check your Speaker connections you might want to take it all out and redo. 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...
If the protect function works but is causing you problems, cancelling the protection function should help, and it will be possible to enter the self-diagnostic function mode. This should disable all functions of the protection mode, excluding the 'excess electrical current detection' feature.
While pressing the "Tone Control" and "Info" keys, try pressing the power key to turn on the power. Keep pressing those 2 keys for 3 seconds longer.
this should activate the Self Diagnostic function, with your Protection Mode disabled.
in this mode the 'sleep' section on the tv's fluorescent display flashes to indicate that the mode is properly activated.
just be very aware, this function is normally there as a safety feature and i cant guarantee that disabling it altogether won't cause other problems down the road. best of luck!
Hello Check the connection to speaker with this amp, for any short or any other fault. disconnect the outputs, ie, speakers from the amp, and switch it On, and see the protect display comes or not. If it comes, the fault is internal and the set need service. Your M3 dual Mono integrated amp, is of high output power and its outputs are protected against any overload or short circuit. If the system detect any among this condition specified above, it will show protect mode display. Never load this amp, as protection display is there, as it may damage the speaker or its internal power amplifier section circuits, may cause more money to get it repaired. OK.
Protect is the amp's way of saying it is protecting itself from trying to deliver more current than it can. First step is to disconnect the speakers. Have no input signal present (volume all the way down) so it is not trying to put out power. If the protect indicator still comes on, the amp has an internal short or problem and needs professional help. If the indicator does not come on, then you have an issue in your wiring or the speakers. Reconnect one at a time or get new cables and try again. Good luck.
the protector comes on to keep the amp from further damaging itself or the speakers. The buzz you heard was probably 60HZ line buzz from the main DC supply conducting full current through one of your speakers through a damaged amplifier transistor. Your stereo will need professional repair. The protect circuit basically opens the speaker relay (and sometimes shuts down the unit) to prevent this DC voltage and current from getting to your speakers until the problem is corrected.
Hello pianopeter, I have the same amp with the same problem but only when the crossover mode switch on the front channel is set to low pass or high pass. Have'nt fixed that yet cause when I got the amp and put power to it the clip and protect lights would flash back and forth. I turned out to have 2 bad output transistors on the right front channel, I replaced them and amp works great now. Then when I was doing final testing I switched the crossover mode switch to lowpass and your problem occured. I do believe the problem is in the removable board which controls the controls the crossover and input to a point. Try moving the crossover mode switch to flat on both front and rear and let me know if amp works fine that way. I'll be working on this problem soon but would like to know if your problem changes if you move the switch to flat. Please leave me a message as soon as you find out cause this will aid in the process of me fixing problem. I am an electronics tech and buy and fix broken amps all the time so I have a really good knowledge of car amp repair. Once again let me know ASAP, Thanks
There is a problem with one or both of the audio amp circuits. The amp is going into a protect mode as to protect and save your speakers. Sorry but there is no simple fix. this will need to go to the shop to be diagnoised. Good Luck
Hello fordguy, love the name i'm a ford man myself if thats why you chose it. Anyway to the amp. I buy broken amps all the time from E-bay and find which parts are bad order them and replace them and the amps work great. I just bought and recieved the same amp, Bazooka EL1500 and right away when I put power to it the protect light came on. Let me tell ya a little about car amps and the mostly the main reason they go into protect mode. First it could be something small and stupid like a fuse, sometimes amps protect light will still come on even if fuse is blown. Maybe something inside is touching something else causing it to go in to protect mode like lets say a small peice of solder is connecting to solder traces together or whatever, you get the idea. Second and this is I'd say 80% of all protect lights coming on. You either have shorted out output transistors or powersupply mosfets transistors. This is mainly the cause of this all the time. Sometimes though it's not and you have to do further testing. With your amp, I don't know what was going on at the time of when it quit. The capacitor you speak of is fine it's just the protective shrink looks melted cause thats how it was done when amp was made. You need to test all output transistors and power supply mosfets with a digital volt meter set on diode check. Let me know what you find and itf you need help just opost a comment asking for my e-mail and I will taake you thru the steps. If this helps, please rate it so I can get out of this apprentice status.