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98 GM Truck Radio

Discussion in 'Electronic Repair' started by Jack Anderson, Feb 1, 2006.

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  1. Good evening,

    My son has my old 98 GMC pickup with the "standard AM/FM Cassette
    player radio which was a factory install. Most of the buton lights
    have burned out and he is trying to get at them to replace them. I
    could put a voltmeter on the CB to see what the voltage of the bulbs
    is, I would assume they are 12V but I know what ASSUME means. If any
    of you have ever done this before or could point to someplace where
    this has already been discussed, I would appreciate it very much. The
    other question which has got him nervous is how does one get the
    volume knob off? he has tried to pull it but it will not come with the
    force he thinks it should take. My son is at colledge now so I can't
    judge how much he is using to pull on the knob.

    TIA

    Jack Anderson
     
  2. Ken Weitzel

    Ken Weitzel Guest

    Hi Jack...

    Haven't any info for you, other than if they're indeed
    incandescent bulbs they're almost certainly 12 volts.
    (anything less would have them in series, and the failure
    of one would turn out the whole "string"

    Then again, they may be led's with cracked solder, so...

    Recommendation is that you check with the good folks at
    alt.autos.gm where I'm sure you'll get the definitive
    answer :)

    Take care.

    Ken
     
  3. ditinsta

    ditinsta Guest

    That GM radio is dirt common. You should be able to find one via Ebay or
    flea markets for a few bucks with good bulbs.

    Also, all the buttons are lit by only one or two bulbs. You can take the
    truck to a good car audio shop and have them pull the radio and solder in
    new bulbs usually for under 50 bucks.
     
  4. Michael Ware

    Michael Ware Guest

    Most of the GM radios of that era have anel lamps that are mounted with a
    plastic base that twists and locks into a hole in the PC board. You can buy
    the lamps with the blue covers and bases as a part at your local GM parts
    counter. getting the radio open without damage is the tricky part.
    Mike
     
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