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TV with weak colour

Discussion in 'Electronic Repair' started by b, Dec 30, 2008.

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  1. b

    b Guest

    I have a late '80s vintage Philips CP110 Tv , which works well, but
    the colour is weak, even with the saturation control set to full the
    picture is only just more 'colourful' than B&W!
    .. is this likely to be something like a low voltage to the RGB
    stage,or something more serious?

  2. Arfa Daily

    Arfa Daily Guest

    If the A1 control is set wrongly, some of the older CRT types can look
    'washed out'. Sometimes, beam limiter problems can give the same effect. A
    fault in the ACC circuitry will do it, and sometimes, a mishapen sandcastle
    pulse, which used to be quite common back then. Often down to a resistor in
    the HOP stage, where the pulse is 'constructed', having gone high.

  3. b

    b Guest

    I finally dug this set out again today and it did seem as if the G2
    was a bit high, so I lowered the SCREEN control slightly on the Line o/
    p tranny and that gave a far more natural colour. Haven't tried it
    with RGB source, as didn't have one to hand. set seems fine now ,
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