Question about Sony FD Trinitron WEGA KV-20FS120 20" TV

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Blinking picture and bars running on diagonal

Blinking picture, began as occasional now all the time. also bars running on diagonal,

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A common cause is a short in the electron gun inside of the CRT neck. This is not fixable without changing the CRT. The CRT is terribly expensive to replace if it was available.

A less common cause is a failure in the HV multiplier. This is part of the flyback assembly. Changing the flyback assembly is taking a gamble to see if the fault is fixed this way. There can also be some other support components that will have to be changed.

Considering the age of the set, I would not invest any money in to it.

Jerry G.


Posted on Jan 17, 2009

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Rating: 85%, 1164 votes
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Good day.

You are getting an intermittent performance for your unit. One reason for this might be with the loose contacts on the high voltage section of your unit. Have it resoldered.


Regards,


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