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radio amplifier fuse blown

posted by  someone claiming to be MattK on  Mon Sep 1 03:41 CST 2003 [RELATED]

The OEM tape deck is completely dead in my 1997 850(127K). Inspection of the fuses found #7 (radio amplifier) blown. Replcement resulted in sparks and another blown fuse. Before I start exploring does anyone have any suggestions? I didn't find much on the search engine.

Thanks
Matt








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    radio amplifier fuse blown

    posted by  bru on  Mon Sep 1 09:19 CST 2003
    Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
    last visit: Sat Dec 1 11:13 CST 2012
    [RELATED]

    What model head unit do you have, and are you sure you have an external amplifier? Do you have an external CD changer? Antenna up/down switch? Have you checked the wiring diagrams to see what all is on that fuse? Does the fuse blow with the radio turned off?
    If the fuse doesn't blow till you turn on the radio, you may want to start by pulling the head unit out far enough to disconnect the amplifier cable, then reconnect the battery, enter your radio code and replace the fuse. If the fuse doesn't blow with the radio on and the amp disconnected, it's probably either in your amp or in the wires between the amp and your speakers. (depending on the model of radio, the head unit may run the two dash speakers, and the amp the door/rear deck speakers).
    --
    We have met the enemy and they is us. Pogo '99 S70 cop car : T Roosevelt Rough Rider tires& suspension, Walmart fog/driving lights, speakers by ebay, 2 old Volvo amps cranking out 8x20 W, ambiance by Pall Mall, trim by Le Duc d'Tape








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      radio amplifier fuse blown

      posted by  someone claiming to be Mattk on  Tue Sep 2 11:28 CST 2003 [RELATED]

      thanks for the detailed response. The HU is an SC-811. I don't know for sure but I think it does have a separate amplifier since #7 fuse is designated as radio amplifier and #32 fuse is for the radio and some other things. I have to test what configuration causes it to blow.

      matt







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