[TechAssist] Re: Toshiba CZ27T31 Flickering Video
- From: "Gauthier TV" <gauthiertv@xxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Wed, 2 Jan 2002 11:06:58 -0500
Hello Jeff,
I've seen the symptom you describe, and the effect on it by screen control, in
many zenith chassis. In this case it was caused by a 1uf 50v cap in the ABL
line feeding the video chip. might be worth checking on this set.
Mike Gauthier
Gauthier TV
44 Elm St.
Amesbury Ma 01913
978 388 2213
413 425 6490 fax
mailto:gauthiertv@xxxxxxxxxxxx
----- Original Message -----
From: Shoreline Electronics
To: techassist@xxxxxxxxxxxxx
Sent: Tuesday, January 01, 2002 8:55 PM
Subject: [TechAssist] Toshiba CZ27T31 Flickering Video
Make : Toshiba
Model : CZ27T31
Chassis : TAC9905
Problem : Video flickers when cold....stops after about 10 minutes of warm
up.
Put this on the bench Monday at the end of the day. Picture was flickering
as soon as we turned it on.
After the warm up period it stopped we grabbed a can of freeze spray &
started chilling all the parts. Problem wouldn't return.
I noticed the video looked a teeny bit bright so I started tweaking the G2 &
I noticed when we increased the G2 control the flickering problem would
return....backed it down problem gone!
Odd thing though...when the G2 gets cranked up we don't see the usual ultra
bright screen with retrace lines...just this flickering video.
Is this normal on these newer Toshiba sets?
Tomorrow we'll see if it the problem is back when we first fire it up.
Jeff Stielau
Shoreline Electronics Repair
125 Beechtree Lane
Westbrook,CT 06498
860-399-1861 Voice
860-664-3535 Fax
jstielau@xxxxxxxx
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