Car radio Grundig AD 182H - problem!?

Discussion in 'The Projects Forum' started by Petrus Armagedon, Jul 10, 2011.

  1. Petrus Armagedon

    Thread Starter New Member

    Jul 1, 2011
    24
    0
    Hello all!
    I have a car Fiat Brava and it radijo Grundig AD 182H (see picture).
    He reported the problem with the radio: When you turn on the radio to play for about 20 minutes for automatic disconnection?:(
    Give please tell what's the problem? And how to solve it?:confused:
    thanks
     
  2. SgtWookie

    Expert

    Jul 17, 2007
    22,182
    1,728
    I would venture a guess that there is a power MOSFET somewhere that is shorted from source to drain.
     
  3. praondevou

    AAC Fanatic!

    Jul 9, 2011
    2,936
    488
    Look at almost the end of this site http://www.unlockforum.com/archive/index.php/t-7169.html. Seems this radio turns off 20minutes after the engine stopped. Usually there is one extra wire from the ignition that tells the radio if the engine is running or not. (+, + from ignition, and ground)

    Maybe it has something to do with this? Broken wire in the car or trace/wire inside the radio?
     
  4. Petrus Armagedon

    Thread Starter New Member

    Jul 1, 2011
    24
    0
    I solved the problem. He is fine with the connector terminals 4!
    (see Figure1 connectors).
    Cheers
     
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