Grundig spool TK547

Discussion in 'General Electronics Chat' started by Bhabadeb, Apr 16, 2011.

  1. Bhabadeb

    Thread Starter New Member

    Apr 16, 2011
    My Grundig spool model TK547 is not working properly. Its Erase circuit is not OK. It consists of BC328 /BC338 combination with 4 resistance and 5 capacitor .As per ckt about 80mA current shall be drawn by these two transistors, instead it is drawing about 20mA.The full circuit has been replaced by new components---still no result.AC voltage is not coming at erase head----this was originally 125(mono) and 150(stereo)volt AC.
    If any friend do have any idea about this ckt, I can post full image of this circuit to get a complete solution.
    Please help.
    With Thanks, ( Bhabadeb)