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# Sony KV27V36 picture problem

#### awehmann

Jun 28, 2012
2
Our Sony KV27V36 (purchased 11/1/97) has developed a problem with its picture. On 6/28/12 the vertical size of the picture shrunk to the top part of the screen, became somewhat fuzzy and then disappeared. I removed the back and tried poking things with a plastic rod. The picture temporarily returned when I poked the flyback transformer, but I now don't regard that as conclusive. I disassembled things to the point where I could examine the circuit boards and look for anything suggestive of a bad solder joint. I didn't find anything, so I put things back together, powered up and the picture was good for ~20 minutes, but then went bad once again. Having no 120 volts AC connected to the PS board for quite a while (days) may be of significance, in having the picture be good for that length of time.

I've since tried leaving the 120 volts AC unconnected overnight. When the set is turned on the picture is good for a minute or so and then shrinks vertically and eventually goes blank.

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