[TechAssist] Re: Mag 27V504 horiz tear in pix
- From: tvsteve <tvsteve@xxxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Mon, 11 Nov 2002 17:11:59 -0500
On Mon, 11 Nov 2002 11:51:20 -0800 (PST), you wrote:
>
>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=20
>--- tvsteve <tvsteve@xxxxxxxxxxxx> wrote:
>>=20
>> On Mon, 11 Nov 2002 07:16:17 -0800 (PST), you
>> wrote:
>>=20
>> >
>> >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:
>> >>=3D20
>> >> 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?=3D3D20
>>=20
>>=20
>> 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.=3D20
Thanks for the reply Walt. I thought of that before I pulled the set,
but the customer is elderly and can hardly find the power button on
the remote. Looks like time for a new tube.
Steve
=20
Television Service Center
Steve Tomaszewski N2PTJ
6 North Hill Dr
Ballston Lake, NY 12019
518-877-6665
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