[TechAssist] Re: JVC-32050
- From: "S. Pasher" <spasher@xxxxxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Mon, 22 Dec 2003 23:42:09 -0330
Al thanks for reply. One of the things I forgot to mention in my original
email was that the OSD was good , also PIP was still working and had a good
picture.
Buck Pasher
Buck's TV
Gander Newfoundland
Canada
709-256-7738 (Fax & Phone)
----- Original Message -----
From: "al m" <ampm@xxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Sunday, December 21, 2003 11:36 PM
Subject: [TechAssist] Re: JVC-32050
> Check the able circuit. If no parts are open then maybe the shot of
voltage
> to the heaters blew out a short in the tube.
> Al Marquardt
> ampm@xxxxxxx
> Al Marquardt Electronic Repair
> 206 W Main
> Girardville Pa. 17935
> ----- Original Message -----
> From: "S. Pasher" <spasher@xxxxxxxxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Monday, December 22, 2003 9:53 AM
> Subject: [TechAssist] JVC-32050
>
>
> > I've got a puzzle with this one. It came in with sound no picture. If
you
> > turned the screen up you could get a picture just before the overdrive
> lines
> > come on.
> > After chasing video all around the place and finding that waveforms were
> > about 1/4 what they should be coming out of the I/C that feeds the
> > pic.socket, I started to check the ABL cct. I found that it was 1.5 volt
> > low. Went to F/B found voltage low there also. My tech was checking in
> that
> > area and accidentally shorted pin 2 (ABL and Heater) to pin 3 (210 volts
> to
> > pic socket). the picture came back and after 2 hours running is still
> good.
> > I am wondering if anyone has had problems in this area before. I don't
> like
> > to give the TV back and have it fail again for same problem. I will run
it
> > for a day or two and if OK and I don't get any replies I will give it
> back.
> >
> > Buck Pasher
> > Buck's TV
> > Gander Newfoundland
> > Canada
> > 709-256-7738 (Fax & Phone)
> >
> >
> >
> >
> >
>
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