[TechAssist] Re: NAP PTV375 (7496) not in "Force"need vert section
- From: "Hoyt's TV" <hoytstv@xxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Tue, 22 Nov 2005 10:04:41 -0500
Ron, I have two paper schematics for the 7496 manual but the vert. circuits
appear to be the same on both.
I can scan the vert. circuit and the wave forms to go with it.
Russ Hoyt
Hoyt's TV
Exeter, NH
----- Original Message -----
From: "Ron Miller d.b.a. Country TV" <rlmbkm@xxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Monday, November 21, 2005 6:39 PM
Subject: [TechAssist] NAP PTV375 (7496) not in "Force"need vert section
> Have an older ptv 375 made for Sears by Magnavox manual # 7496 on paper
> only.
> Need scan of vert output section, after replacing PLL ic in tuner now I
> have sound no pix NO VERT.Have checked for missing smd , cracked trace -
> lose connectors ETC..
> Do have ramp from IC 200 (jungle) to output IC tda8174 have 29vdc to vert,
> scope the yoke and see vert pulse for an instant then nothing.Have
> replaced
> vert output ic twice and jungle once getting nowhere, anyone have scan or
> tips?Ohm & ESR meter and o'scope have had a workout on this old dog.tia
>
> Country TV
> Ron Miller
> Inez, TX. 77968
>
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