[TechAssist] Re: ProScan PS 52650PTK169PHB
- From: Gary McCartney <gary@xxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Wed, 30 Mar 2005 12:34:34 -0500
Have you turned up the blue and green screen controls? Also, what
happens if you insert the blue or green anode lead into the red output
of the HV splitter? What voltages do you get on the red CRT board
compared to the green and blue CRT boards? Do you have any video signal
getting to the blue and green boards?
Gary McCartney
McCartney Electronics
Guelph Ontario Canada
Est. 1984
email: gary (at) number63.ca
John H Smit wrote:
> Hello to all
> I have this ProScan PTV lightbox in my shop with the problem that only the
> red CRT lights up,the green and blue have the filament lit up but no output.
> My question to you all is,about the possibility that the Tripler could be
> the cause of it.
> I have only experienced that the Tripler fails to put out any high voltage
> but would it be possible that only one CRT gets the juice.
> I hope that it is the problem because of the low price for a 205064 Tripler.
> I would like your opinion on that question please'
> I look forward to your answer.
> Thank you in advance
> John
> With this I like to say thank you very much, to Jay Knoll for the S/M you
> send me, on a Zenith TV,
> A27A23W,for a no sound problem,and because of that I was able to solve the
> problem by driving a audio signal into the circuit and found IC 1400 to be
> defective which I have on order.
> Thanks again Jay
> John H Smit
> Smit's TV Service
> Box10
> Gunnison Utah 84634
> 800-355-4948 Phone&Fax
> 435-528-7955 Phone&Fax
> jsm@xxxxxxxxxx
>
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