Hi most of the time protect mode comes on when there is a wiring problem check your earth and wiring to subs speakers etc some thing has come loose i bet
GM09SR installed April 2009 in 2006 Trailblazer, Radio sometimes will not turn on/off when key is...
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GM09SR installed April 2009 in 2006 Trailblazer, Radio sometimes will not turn on/off when key is turned on/off, the chimes quit working, etc. When this happens I can "reboot" by disconnecting the car battery cable, after which the Chime and other functions return to normal. Radio used with this is Sony MEX-BT3700U, replacing GM factory basic radio (no bose, satellite, etc) After disconnecting power at battery I have to re-enter all the radio button station presets, bluetooth pairing, etc. Is there a known specific cause, and solution other than disconnecting battery cable?
Car audio amp Infinity 475A -do not work.I try to fix it but I have no circuit diagram . PWM on...
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Car audio amp Infinity 475A -do not work.I try to fix it but I have no circuit diagram . PWM on TL494CN not start. I replaced TL494CN-no result. Please, give a tip - where find circuit diagram of this amp or like it