I got this boss ch1200m and the protection light stays on all the time and it dont send music to the sub. i disconnected it a couple times..left it that way for like half hour then connected it back up..but same thing happend..does anyone know what could be the problem, or if the amp is shot?
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The amp is going into protection mode because one or more of the output transistors is fried inside. You want to check for resistance on all the outputs. I repair these everday. Either have it repaired or do it yourself. I buy broken amps and I also repair them. Let me know if you want to sell or repair or want instructions on how to repair it.
Disconnect subs from output of amplifier and then turn on car and radio. Does amp stay on or go into protect? If it stays on then there is something wrong with the subs or how they are wired (series, parallel ) to the box and amp. If it still goes into protect then something internal with amp.
Blown protection circuit at best. Blown power supply and IC's at worst. Send it to a service center for an estimate, educated guess without having it on a bench in front of me $150-200 repair. To test for the possibility that it's not the amp, disconnect speakers and turn power on. If it stays clean, no"protection", check your subs for a shorted voice coil. Hope this helps.
Try to rest amp (turn off power) be sure subs are disconnected. Se if protection light comes on. If it does the amp needs to be serviced porbably a burnt component. If the protection light does not come on, connect one sub at a time to see if either one surges. Could also be that the gain is turned up too much.
un hook the subs and let the amp sit there on if the protect light shuts off you wired your subs wrong if it doesnt go off tun it off then back on with no sub music all the way down then slowly turn the music up if the light is off then comes on you need new rcas
It sounds like your amp chip has gone bad, here is some thing you can try turn on your unit then start tapping on top of with your finger not hard see if the any of the pops matches your finger taps some times when the chip starts to go out it well act like that.