There is no way to tell for sure without testing and observing the tube. If
your pix looks good you likely have a few more years in it. I repair dozens
of these sets a year and the tubes are holding up very well.

Your problem is likely some bad solder connections and/or bad cap in the
vertical output stage. You can be sure that you also have another dozen to
three dozen leaky and high ESR caps in other areas. If you want to fix this
set reliably, you need to do the following:

1) Look over the component side of the boards carefully for spots around
caps that indicate leakage of electrolyte.
2) Look carefully at the pins, particularly the negative side of all
polarized electrolytic caps for black goo from leakage.
3) Look over the solder side of the boards for black corrosion on any
traces and repair.
4) Test all of the electrolytics for ESR and dc leakage
5) Remove and replace any caps that are bad, leaky, or marginal, cleaning
electrolyte leakage from the board thoroughly.
6) Resolder the legs on the remaining caps and smell for a fishy smell and
listen for the sizzle of electrolyte.
7) Replace any suspect caps and resolder all heat producing components.
8) Put it all back together and do a complete set-up.

I will not repair these sets at all anymore unless the customer will pay to
have the entire set rebuilt as above. I have had too may recalls when I
fixed just the vertical circuit and another cap starts to cause trouble a
week or so later. Every one of these sets has at least a dozen, usually
about three dozen bad caps. All of the boards need to be checked.

You can fix the vertical problem by cleaning up the traces and solder and
replace a few caps, but you will have other problems, perhaps more severe
later if you don't fix the rest of the problems waiting to happen.

Leonard Caillouet

"Pinwiz" wrote in message
news


I have an 11 yr old 35" Mitsubishi TV (Model CK-3526R) that starts up
with a thin (1/2") horizontal line for about a half hour and then the
picture is fine.

Is this worth fixing or is it likely a picture tube heading south?

Don Olsen

On Sun, 14 Sep 2003 19:13:06 -0400, Pinwiz
wrote:



I have an 11 yr old 35" Mitsubishi TV (Model CK-3526R) that starts up
with a thin (1/2") horizontal line for about a half hour and then the
picture is fine.

Is this worth fixing or is it likely a picture tube heading south?

Don Olsen


Your tube is fine you have basic vertical problem not tube, get that
tv fixed.

Cheers,

Wizard

Exactly !
If before the line it was OK then get it fixed
99% bad solder joint.


kip

--
"Watch the return E-Mail addy its false"
"Jason D." wrote in message
...
On Sun, 14 Sep 2003 19:13:06 -0400, Pinwiz
wrote:



I have an 11 yr old 35" Mitsubishi TV (Model CK-3526R) that starts up
with a thin (1/2") horizontal line for about a half hour and then the
picture is fine.

Is this worth fixing or is it likely a picture tube heading south?

Don Olsen


Your tube is fine you have basic vertical problem not tube, get that
tv fixed.

Cheers,

Wizard

I have an 11 yr old 35" Mitsubishi TV (Model CK-3526R) that starts up
with a thin (1/2") horizontal line for about a half hour and then the
picture is fine.

Is this worth fixing or is it likely a picture tube heading south?

It's not the tube, but an indication of a vertical sweep problem. In a
Mitsubishi set, you will have to check for two things:

Leaky caps and cold solder joints. - Reinhart