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Philips 3A chasis tuning probs.

Discussion in 'Electronic Repair' started by The End, Oct 10, 2003.

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  1. The End

    The End Guest

    What is wrong with my old 33" CE...
    Only channels 1,2 21-73 119,120 are scanned while tuning. I can't now
    recieve any cablechannels. Old tunings are in memory, but only noise
    is shown. Channel 36 can be tuned(VCR) and it is also shown.
     
  2. Jerry G.

    Jerry G. Guest

    Try doing an autoprogram from the user set-up menu. If this does not work
    then the tuner module in the set is most likely defective, and should be
    replaced.

    --

    Greetings,

    Jerry Greenberg GLG Technologies GLG
    =========================================
    WebPage http://www.zoom-one.com
    Electronics http://www.zoom-one.com/electron.htm
    =========================================


    What is wrong with my old 33" CE...
    Only channels 1,2 21-73 119,120 are scanned while tuning. I can't now
    recieve any cablechannels. Old tunings are in memory, but only noise
    is shown. Channel 36 can be tuned(VCR) and it is also shown.
     
  3. eddumokweer

    eddumokweer Guest

    Probably the optioncode in the eeprom is not good.
    Replace eeprom with the right type for this tv-set, an empty eeprom doesn't
    work or readjust optioncode as shown in the manual.

    After that modify the eepromcircuit with two zenerdiodes 5V6 from ground to
    the sda and scl.

    Greetings Peter
     
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