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Bob Searcy
 
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Default magnavox Mod RL8570,chas PTV380

HI ALL
Magnvox PTV380 , can not get Vertical center. Have no Schmatic working
from bits and pieces of other s Schmatic's
I'v changed the Vert IC ,checked voltages around the vert IC,all look
good .
Have +20 ,-20 at conv PRW Supply, +12,-12 at the conv BD.
The more checks and Adj I make , Looks more like some thing wrong in
Vert IC Section . missing bottom portion of sweep with a trapazode
effect.maybe I should try another Vert IC .
Just checked D552 off pin 1 of Vert IC. Is this doide paralleled with
a resistor .getting a bad read on this .
If Anybody has seen this problem or has any ideas I would sure
appreciate
It .Anybody have a schmatic for this PTV380
Thanks Bob Searcy

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