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Sony Trinitron kv-32s25 (mfg Oct 1996)...picture flashes on/off

Joe K. Posted Oct 19, 2004

Picture flashes on and off. On start-up screen is black with occasional picture flash for half second. Gradually picture becomes predominant with occasional black flash. Sound is good constantly.

My TV picture started occasionally going black for brief intervals a few months back (a few times per day). Now, on startup, screen is black for 20-30 seconds and then there is a flash of picture for about 1/2 second. Sound is good troughout entire time. Over the next 4-5 minutes, picture flash comes quicker to the point where picture is almost constant with occasional screen blackout for 1/2 second every few minutes. I tried tapping on back of picture tube (plugged in circuit board) with dowel rod...no help. Any ideas????

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