[TechAssist] Re: Zenith SR2773DT Main Module 9-1553
- From: "Peter oliver" <oliver_peter1@xxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Sun, 08 Dec 2002 15:28:05 +0000
I see that problem on occasion, Defenitly CRT.. We've hyposthisised on the
cause as either Cathode contamination or possiblely even a gas problem. I'd
be intrested to know if anyone has found the real cause doesn't act like the
short problem caused by the coating on the inside of the crt spalling off
that causes the tubes to short but I suppose that it could be something that
has gotten in/on G2
Peter Oliver
Tucson Radio TV
From: "Daryl Thunhurst" <dthunhurst@xxxxxxx>
Reply-To: techassist@xxxxxxxxxxxxx
To: <techassist@xxxxxxxxxxxxx>
Subject: [TechAssist] Re: Zenith SR2773DT Main Module 9-1553
Date: Sun, 8 Dec 2002 09:09:45 -0600
Buck,
The first time I encountered that problem, it really ate my lunch.
After several days of checking and subbing, I subbed the CRT and that curred
it. The old CRT checked perfect. It must be something internal to the tube
other that the electron gun. I have seen a couple of others over the years
and it also proved to be the tube.
Hope this helps.
Daryl
Daryl's TV
3310 Dyer St.
El Paso, TX 79930
915-565-9184
915-564-1024 Fax
http://dynacomp.freeyellow.com
---------- Original Message ----------------------------------
From: "sterling pasher" <spasher@xxxxxxxxxxxxxxxxx>
Reply-To: techassist@xxxxxxxxxxxxx
Date: Sat, 7 Dec 2002 12:13:43 -0330
>
>I have been in this business for a long time but I have never seen thus
one
>before. There is a good picture on this one ,but ever minute or so there
is
>a band of picture that is anywhere from 2 to 15 inc wide that is
completely
>out of focus. It can appear anywhere on the screen.
>The rest of the picture other than the band is good. It changes when the
>scene changes, and might disappear all together. When it comes back it
might
>be a different width, in a different place on the screen. Picture tube
>checks OK with my B&K tester. Might it be the F/B?
>
>Buck Pasher
>Buck's TV
>Gander Newfoundland
>Canada
>709-256-7738 (Fax & Phone)
>spasher@xxxxxxxxxxxxxxxxx
>
>
>
>
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