Toshiba 50A61 Picture shifted up.

[franwagner]

This rear projection set is about two years old. Picture suddenl
shifted up so that only bottom two/thirds show with upper one/thir
missing. Bottom third of screen is black. The part I can see has goo
color and convergence only at center of screen, the rest i
progressively worse as you approach the edges. I have repair manua
with schematics. The three gun assembly is not loose nor shifted.
Mirror is OK also, therefore it is an electronic problem. Any help i
appreciated.
Thanks

 

[Art]

Vertical deflection and/or convergence output circuits. Check the + & -
supplies going to the convergence output devices

 

[noncom23]

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