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Laser Scout , Metal detector

Discussion in 'Electronic Repair' started by N Cook, Oct 16, 2004.

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  1. N Cook

    N Cook Guest

    A repair job for next week, UK made in last year or 2
    Detects presence of metal but a very broken audio output
    like a bad contact but nothing found by prodding.
    All surface mount devices. There would appear to
    be a negative voltage generator on the board somewhere
    that may be wavering.
    Anyone recognise this
    Texas Instrument (tiny indistinct logo so maybe not TI )
    8 pin SM IC numbers on it
    22621
    18T
    A72J
    The other ICs I can probably identify

    electronic hints and repair briefs
    http://homepages.tcp.co.uk/~diverse
     
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