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Asimov
 
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"James Sweet" bravely wrote to "All" (20 Dec 04 07:25:35)
--- on the heady topic of " ray of light appears......."

JS From: "James Sweet"


JS "kiran katti" wrote in message
JS om...
Whenever I turn on my TV set it works well for about 10 to 15 min but
after that a thin ray of light appears at the center with a black
background. It stays there for about 1 min or so then disappears. This
intermittent appearance has caused lot of trouble while watching the
TV. What may be the prob. On some days I don't get the line at all.
Mine is 4 years old tv.



JS You haven't provided any information needed for someone to help you
JS out, you need to specify the brand and model number of the TV. Best we
JS can say without that is look for cracked solder joints.


Might be the vertical pump-up cap with high ESR? I've seen something
like that once where the cap had been misoriented. It had worked okay
in reverse polarity for a long time but it finally opened.

A*s*i*m*o*v

.... Electrical Engineers do it push-pull.