[TechAssist] Re: Proscan M# PS52682 PTK171ACB, Wierd Chroma problem
- From: tjanphyl@xxxxxxxxxxxxxxx
- To: techassist@xxxxxxxxxxxxx
- Date: Wed, 19 Oct 2005 19:16:37 -0400
Give me U2401's number on the actual part.
I may have that chassis.
Are you sure it's not the splitter block? try swapping the R,B,B anode
leads and see result?
Phil
Phil Bader, Pres.
Jan Phyl TV Inc
Winter Haven, Fl
(863) 299-8821
estab. 1976
personal email: pbader@xxxxxxxxxxxxxxx
----- Original Message -----
From: John Myers <myers_tv_b@xxxxxxxxxxxxx>
Date: Wednesday, October 19, 2005 6:15 pm
Subject: [TechAssist] Proscan M# PS52682 PTK171ACB, Wierd Chroma
problem
> HI,
>
> This has been here for a couple months. It plays for a minute or
> two, then an interference pattern creeps accross the red & blue
> CRT's, and they go dark. As they go dark, the green CRT gets very
> bright (no retrace lines).
> I've been able to track it back as far as the r-y, and b-y lines
> coming from the Progressive Scan IC, U2401. In the morning, I hope
> to check voltages on U2401. But, I'm hoping to not have to replace
> the IC as a test. The dealer cost is $60!
> Has anyone heard of anything like this on the CTC170/171 family of
> chassis?
>
> Thanks,
>
> John Myers
> Myers TV Service
> 376 E. State St.
> Alliance, OH 44601
> PH 330-821-6545
> e-mail: myers_tv_b@xxxxxxxxxxxxx
> http://www.myerstv.net
>
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