[TechAssist] Re: Curtis Mathes CM19001 Picture gets darker & darker
- From: "tvservice" <tvservice@xxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Fri, 9 Sep 2005 17:58:33 -0500
is the g2 voltage to the crt dropping?
If so when it goes dark remove crt board from crt and see if g2 volts comes
back up.
If it comes back up crt/picture tube is defective, if it doesn't then
possible bad flyback or leaky cap on g2 line
I have seen these caps usually .01mfd 2-3kv intermittently leaky and cause
your symptom on various makes
hth
Robert
tvservice@xxxxxxxxxxxxx
H & H Electronics Inc
----- Original Message -----
From: "Dale Lubow" <harristv@xxxxxxxxx>
To: "TechAssist" <techassist@xxxxxxxxxxxxx>
Sent: Friday, September 09, 2005 5:27 PM
Subject: [TechAssist] Curtis Mathes CM19001 Picture gets darker & darker
> I know its not worth repairing but it belongs to a friend of my
> daughters.Curtis Mathes CM19001 That from cold the picture is OK but
within
> a short time the picture gets darker & darker. The voltages don't seem to
> change. Even turning up the screen doesn't help. Possibly an internal CRT
> problem? Tried freeze mist. Heater stays nice & bright. Any ideas?
> TIA,
> Dale
> --
> Dale A. Lubow CET
> Harris TV & Appliance
> 335 Lincoln Way
> Ames, IA 50010
> 515-232-1109 (Voice)
> 515-232-3356 (Fax)
> HarrisTV@xxxxxxxxx
>
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