[TechAssist] Re: Mag 27V504 horiz tear in pix

  • From: walter wood <wwood_38478@xxxxxxxxx>
  • To: techassist@xxxxxxxxxxxxx
  • Date: Mon, 11 Nov 2002 11:51:20 -0800 (PST)

Sounds like AGC, as the cap is OK.
Quick and Cheap fix is to use the video inputs and
use a VCR(tape part doesn't even have to work), as
the tuner.
I've made many people happy with this idea, and it
seems that cost is an issue for your customer.
Walter 
--- tvsteve <tvsteve@xxxxxxxxxxxx> wrote:
> 
> On Mon, 11 Nov 2002 07:16:17 -0800 (PST), you
> wrote:
> 
> >
> >Look for a 100 mfd.@200v cap.
> >It's probably bad.
> >while you are there look for bad solder on the
> >regulators, and horizontal driver, and
> associated .
> >Walter
> >--- tvsteve <tvsteve@xxxxxxxxxxxx> wrote:
> >>=20
> >> Magnavox TS2777C101, (27V504) has a
> intermittent
> >> horiz tear in the
> >> tuner video. OSD and direct video-in are fine.
> >> Checked all voltages
> >> and supply's for bad caps, also tried subbing
> the
> >> tuner. AGC and VT
> >> voltages are ok.  It appears to tear on
> certain
> >> video content because
> >> some channels are ok.  Elderly customer
> doesn't
> >> want to spend much to
> >> fix. Anyone run across this problem?=3D20
> 
> 
> Thanks for the quick reply. C431 (100/200V) was
> the first thing I
> tried. This is a weird problem, like I said, it's
> only in the tuner
> video.  If I call up the osd it is clean on top
> of the distorted pix.
> Also direct video input is clean.=20
> 
> Steve
> 
> Television Service Center
> Steve Tomaszewski  N2PTJ
> 6 North Hill Dr
> Ballston Lake, NY 12019
> 518-877-6665
> 
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=====
Walter Wood                  
Future Tech Home Center        
2786 Hwy. 43 N.
Lawrenceburg Tn. 38464
931-829-3337
Fax 931-829-4044
mailto:wwood_38478@xxxxxxxxx

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