[TechAssist] Re: toshiba cf27h50 shadow mask (question)

When I go to step 5 the degaussing coil has to be disconnected or connected?
                     Jose Paniagua.

In a message dated 12/29/2001 10:52:11 AM Pacific Standard Time, 
billmcfarland@xxxxxxxxxxxxxx writes:


OK, This is what I do.  It may be wrong...But it was how I was taught.

Start with unit in a Cold Start State.

Step 1 With Unit off--Disconnect the internal Degauss coil. Turn unit on.
Step 2 Degauss using your handheld coil.
Step 3 Let the unit warm up 15 or 20 min.
Step 4 Turn off unit and let sit off for about 10 min. DO NOT  MOVE THE
UNIT.
Step 5 Turn unit back on.

If the Purity problem comes back during the warm up or when you turn it on
the second time. The Shadow Mask is loose.
Its also important not to move the unit after you degauss with the handheld
coil. The earths magnetic field can mess with the experiment.

Like I said. This could be completely off base. But It works for me. (Has
far as I know anyway!)
I am sure there are people on this list who have a better way or know more
about it then I.
Just thought I would Run this up the flag pole and see anyone salutes!

Good luck, God Bless, Happy Holidays
Bill McFarland
DMC Electronics
----- Original Message -----
From: <knitrngr65@xxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Friday, December 28, 2001 4:18 PM
Subject: [TechAssist] toshiba cf27h50 shadow mask


> Maybe someone can tell me, how to determine if the shadow mask has broken
> loose.  I tried the only way I know, and that is if you have a discolored
> screen ( blue, purple weird colors), and the colors don't go away after
> degaussing.  Also I tried tapping on the front of the screen to see some
kind
> of movement in the shadow mask, didn't help.  Can someone give me some
> advice, sure would appreciate it....
>
>



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