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Franc Zabkar Franc Zabkar is offline
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Default Sony 19" CPD-420GS Focus changes at random

On Sun, 28 Jan 2007 16:06:34 GMT, Homer Simpson
put finger to keyboard and composed:

I have a Sony 19" Trinitron Monitor, CPD-420GS.

Here recently, the focus will change on it's own. Usually, it starts
with a "click" from the flyback side of the monitor, and then the
focus will change from mild to wild.

Had the monitor open, and checked for cold solder joints. Found none,
but resoldered some previous repairs (Q901 and Q902). Didn't find any
obvious leaking caps.

Any help appreicated.....


There is a service manual at http://www.eserviceinfo.com

- Franc Zabkar
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