[TechAssist] Re: Thomson ICC10 image entirely red color.
- From: "Peter oliver" <oliver_peter1@xxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Fri, 13 Sep 2002 19:52:15 +0000
Check the transistors/IC's on the crt board for shorts, Check the screen and
grid resistors for open's and Test the CRT for an HK short, try an CRT
isolation transformer if avalible. Pretty general but In the states I deal
mostly with NTSC 3.58 sets and an occasional multi-system brought in by USAF
personel. But those should be pretty applicable to most sets.
Peter Oliver
Tucson Radio TV
From: "Stefaan Van Slycken" <vanslycken@xxxxxxxxxx>
Reply-To: techassist@xxxxxxxxxxxxx
To: <techassist@xxxxxxxxxxxxx>
Subject: [TechAssist] Thomson ICC10 image entirely red color.
Date: Fri, 13 Sep 2002 17:24:48 +0200
Hi List...
I have a Thomson ICC10 TV. The image is sometimes ok at startup, after a
couple of secs the picture turns entirely red. It comes from the video
amplifier module (the one on the back of the CRT). The voltage on the
common point of the push-pull amp TV29/TV28 is way too low, some 40V instead
of 140. I had a functioning module, i swapped TV33/32/29/28/21 and i
replaced TV26. That doesn't cure it. Any ideas? (other voltages seem ok,
except for the base and collector of TV26, which are too low (2.6 instead of
3.8V and i forgot the other one). I just swapped the modules and the tv
went back to the customer, so i can't do any more measurements. I just hope
someone had this before.
thanks!
Stefaan Van Slycken
Waasmunster, Belgium
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