View Single Post
  #2   Report Post  
Posted to sci.electronics.repair
Phil Allison[_2_] Phil Allison[_2_] is offline
external usenet poster
 
Posts: 1,716
Default Need schematic for Sony KV-1380R TV


"hr(bob)

Just had a Sony Model KV-1380R given to me a couple of days ago. Only
problem is simultaneous but intermittent horizontal and vertical
shrinkage of about 20%, on a random basis. Removed the set back,
problem is still intermittent, but appears to be less frequent. Tried
beating on anything related to power supply, both in normal and
trouble modes, no effects. I suspect something in the power supply
since both H & V are affected. Currently running the set with a
voltmeter on B+ which is running about 155V, waiting for something to
go wrong. But I can't sit around watching the set, just check it
intermittently. Anyone had similar problems with this or similar
Sonys.



** Might be an idea to change any caps, varistors etc connected to the yoke.

An intermittent short in one could affect the pic size like you say.


...... Phil