[TechAssist] Re: CTC187CL - No Raster-Has audio & HV
- From: "Webster TV" <webstertv@xxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Fri, 7 Mar 2003 10:01:20 -0600
Phil,
Do you have a bright gray raster? If so, check the collector voltage on the
video outputs. I had a CTC187, that had a slick gray raster and it also
would intermittanly flutter. The voltage on the collectors of the video
outputs was low, approx. 87v. Found open coil L5001 that solved the problem.
Dan Webster
Webster's TV
Shullsburg, Wi.
----- Original Message -----
From: <Philstv@xxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Friday, March 07, 2003 9:15 AM
Subject: [TechAssist] CTC187CL - No Raster-Has audio & HV
>
> Hi All. I have this CTC187CL with no raster, it has audio and high
voltage.
> The filaments are lit and channels change. I replaced the LA7610, the
video
> outputs, the bias transistor as well as both filters on the CRT panel,
same
> problem. When scoping the video to the output transistors on the CRT panel
I
> get great video to the base of each transistor, but the collector waveform
is
> cut-off and distorted. Any suggestions?
>
> Phil@Phil's TV
> 34651 Ford Road
> Westland, MI. 48185
> 734-728-5925
> philstv.com - philstv(at)aol.com
>
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