[TechAssist] Re: Zenith SR2571DT, module 9-1445, pix goes dark

  • From: "sandman" <sandman@xxxxxxxxxxxxx>
  • To: <techassist@xxxxxxxxxxxxx>
  • Date: Thu, 14 Feb 2002 08:43:07 -0500

Yes it bad CRT's. Use a CRT restorer and put an Isolation Transformer on the
heater line.
I always restore Zeniths face down and tap the neck of the tube to get all
the crap loose that causes the shorts.

----- Original Message -----
From: <gulftech@xxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Wednesday, February 13, 2002 4:55 PM
Subject: [TechAssist] Zenith SR2571DT, module 9-1445, pix goes dark


>
> Friends,
>
> I have been thru Zenith hell this week.  Three sets this week with the
> almost identical symptoms.  Each have the typically lousy Zenith picture
> for a few minutes to several hours.  Then, on two of the sets, the
> picture becomes so dark that the image is barely visible.  On the third,
> there is no image at all.  Turning up G2 has no effect.
>
> It may be the CRT bad in all three, but that would be a whale of a
> coincidence and I don't ever remember seeing something like that before.
> The only "evidence" I have is that on one of the sets, we heard arcing in
> the neck of the crt when the pix went dark.  I tapped on the neck.  The
> power supply blew out.
>
> BTW, the boards on the other two sets are 9-1458 and 9-1457.
>
> Have any of you run into a similar problem?
>
> Thanks,
>
>
> Ken Smith
> Gulf Technical Services
> 3034 Gulf Breeze Parkway
> Gulf Breeze, FL  32563
> 850-934-8324 (Voice) 850-932-0819 (Fax)
>
>
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