Resolder your vertical output IC561.

This will solve your problem.

Resolder the Horizontal Driver Transformer while your in there for good
preventive maintenance


--
==========================
Jeff Stielau
Shoreline Electronics Repair
344 East Main Street
Clinton,CT 06413
860-399-1861
860-664-3535 (fax)

========================

"John F Miller" johnATenosoft.net wrote in message
...
Hello,

I have a Sony Trinitron KV27S22 (December 1997). A couple of days ago, it
developed a picture problem. Rather than try to describe it, I have
placed the following photos on the web:

Image of color bars: Behaving OK -
http://www.enosoft.net/kv27s22/Bars%20-%20OK.JPG
Image of color bars: Exhibiting problem -
http://www.enosoft.net/kv27s22/Bars%20-%20Problem.JPG

The problem will set in anything from a few seconds to a few minutes after
cold-starting the set. The problem will persist for a few seconds before
the display completely disappears. Only a cold reset will restore the
image. Audio is fine.

I have done some troubleshooting and have narrowed the problem to what I
think is a capacitance issue. Using a painter's stick (wooden!), I tapped
the various components on the main board and found that the tapping could
induce the problem. However, if I hold the ground of the audio
connectors, the tapping does not create the problem. When the problem is
present, grabbing the ground of the audio connector clears the problem.

The most sensitive part of the board is shown at:

http://www.enosoft.net/kv27s22/Main%20Board%20(Part).JPG

I have a copy of the Sony service manual for this set but, before I
merrily begin replacing all the capacitors, I would like to know if anyone
knows a specific cause and/or that I am barking up the right tree.

Many thanks in advance,

John Miller.