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Old 16th May 2007, 12:01 pm   #11
Welsh Anorak
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Join Date: Apr 2005
Location: North Wales, UK.
Posts: 6,884
Default Re: Pye CT205 - a partial success story!

Hi
Much banging of head, but I still can't remember what caused this fault, though I've definitely had it before, and I'm sure it's on the CDA panel. As far as I remember the black and white picture was OK (ish). As Mike says, swap the leads from the decoder and see how the blue looks then - I think the lack of blue (where there should be blue) is the giveaway.
I think taking the board out and scowling at it for a while helps (i.e. look at the print, especailly earthing) then make a few resistance readings comparing channels, then put the board back and compare voltages in the red and blue channels (green can be misleading).
This was always quite a rare fault - and you get TWO different sets with the same symptom? Is that just bad luck?
And that looks a very smart tripler you've got in there....

Glyn
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