[TechAssist] Re: CTC166/167 RCA, replaced shorted Q901, video luminance buffer, shorted again.
- From: "al m" <ampm@xxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Mon, 16 Dec 2002 10:04:32 -0500
Kevin, I had this happen to me on a ctc148 (I think) and it ran me in
circles. Check the voltage on the transistor. Mine was high and I couldn't
figure out where the extra voltage was coming from. After lots of searching
it turned out to be a cap in the vertical circuit leaking the extra voltage
to that line. Did you use the correct part, maybe you got a bad one. Just a
thought.
al marquardt
ampm@xxxxxxx
----- Original Message -----
From: "Kevin" <kevintv@xxxxxxx>
To: "TECH-ASSIST" <techassist@xxxxxxxxxxxxx>
Sent: Monday, December 16, 2002 3:44 AM
Subject: [TechAssist] CTC166/167 RCA, replaced shorted Q901, video luminance
buffer, shorted again.
> Hi fellow techs,
>
> Is it possible for the picture tube to short out the video luminance
> buffer, Q901 in the CTC166/167 chassis family? I replaced Q901 and it
> lasted a few minutes and then the good picture blinked and went back to
> bright with retrace lines and the picture faintly in the background. I
> have replaced these before and had no problems. TIA
>
> Kevin Wilks
> Kevin's TV & Video Repair
> Penticton BC Canada
> kevintv@xxxxxxx
>
>
>
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