Sony Trinitron

Sony Trinitron Color TV KV-27S25 Problem: ready light blinks then TV picture comes on then it blinks please advise

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Sounds like the typical failing CRT...IK voltage on CRT neck board drops to about 0.6 VDC from over 2 VDC. Service adjustment of CRT screen to increase IK voltage will work initially. Sometimes a light CRT cathode/grid cleaning cycle will buy you some time as well, but the CRT is likely down to its final 6-12 months.


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Tom MacIntyre

The CRT is most likely failing. The proper fix, is to change the CRT, but this would not be feasible.

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