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Vintage Television and Video Vintage television and video equipment, programmes, VCRs etc.

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Old 27th Feb 2007, 9:59 pm   #1
Join Date: Jan 2006
Location: nr taunton somerset uk
Posts: 32
Default Bush CTV25 (Rediffusion 500/25) colour control not working

Anyone any ideas?
The colour is stuck at mid-range and cannot be adjusted.
The colour control appears OK, as does the preset colour.

Last edited by Mike Phelan; 15th Nov 2007 at 3:10 pm. Reason: Legibility!
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Old 28th Feb 2007, 1:11 am   #2
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Join Date: Sep 2003
Location: Bolton, Greater Manchester, UK.
Posts: 6,618
Default Re: bush ctv25 rediffusion 500/25

If the pots are OK, then try the resistors 5R59 and 5R60. Anyway, I've attached a diagram of the area in question.


Steve P
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If we've always had it, why is the Car Boot open? You're not sneaking another Old TV in are you...?
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Old 28th Feb 2007, 9:07 am   #3
Join Date: Aug 2006
Location: Willington, County Durham, UK.
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Default Re: bush ctv25 rediffusion 500/25

I seem to remember that the colour control has limited effect on these sets. Also if the preset colour control is too far advanced, you will get very little adjustment with the customer control. I serviced the cable version of these sets for Rediffusion many years ago. They used to scare me.
Malc Scott
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