My stereo has always worked fine. The other day my pup shewed a speaker wire. It was fine then the next day I went to turn it on and it immediately turns itself off. I checked the reciever itself and does not "smell fried", My dvd changer works ok if not hooked up to the reciever, but when hooked up to the reciever I have to hold the buttons down for any function to work. Any ideas what may be wrong with my reciever? Is there an internal fuse or relay switch?
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Check this on 1999 Pontiac Bonneville Car Stereo Wiring Diagram, could help...
Car Radio Battery Constant 12v+ Wire: Orange Car Radio Accessory Switched 12v+ Wire: Yellow Car Radio Ground Wire: Black Car Radio Illumination Wire: Gray Car Stereo Dimmer Wire: Brown Car Stereo Antenna Trigger Wire: Pink Car Stereo Amp Trigger Wire: N/A Car Stereo Amplifier Location: N/A Car Audio Front Speakers Size: 4" x 6" Speakers Car Audio Front Speakers Location: Doors Left Front Speaker Positive Wire (+): Tan Left Front Speaker Negative Wire (-): Gray Right Front Speaker Positive Wire (+): Light Green Right Front Speaker Negative Wire (-): Dark Green Car Audio Rear Speakers Size: 6" x 9" Speakers Car Audio Rear Speakers Location: Rear Deck Left Rear Speaker Positive Wire (+): Brown Left Rear Speaker Negative Wire (-): Yellow Right Rear Speaker Positive Wire (+): Dark Blue Right Rear Speaker Negative Wire (-): Light Blue
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You may have overloaded your audio output with the external speakers(impedance or short wire problem?)as a result the audio out i.c maybe damaged which in turn may have blown one of several fuses in the power supply.maybe regular GMA type fuse or picofuses,you can try replacing blown fuse but if they blow right back you`ll need the help of a repairman
If the unit shuts down almost immediately without sound, you have an electronic failure of the audio amplifier.
However if you must play the unit up above quiet background levels, you likely have a shorted speaker wire. With home theater systems, you have the luxury of trying different surround modes and speaker level settings. It's not unusual, for example, to have a loose wire strand going to the center speaker. In stereo, the system works fine. As soon as you switch to a surround mode, the amplifier senses the short and shuts down to protect itself.
Check those wires really close - I bet you'll find it there.
sounds like the ohm load of your speakers is incorrect and overloaded the amp,....check all your specs, i.e. max, min ohm load on stereo, and speakers,...this stuff is important and must be within the range allowed or stuff like your experiencing happens,.....it's happened to me before,.....fried my amp because i had house speakers in my van, was great for about 3 loud days,....good luck, cracklin joe,.......
This maybe an easy one. Have you unhooked all the wires going in to the stereo. "SP wires" means you have wires to the speakers are touching and the stereo is shutting down to avoid overloading. Hope this helps...