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When I turn on the tv, there is no picture or sound (the ssreen display is just a series of lines). This lasts for about 5 minutes, then the picture and sound is fine. It remains fine for as long as the tv is running. After I turn it off for a while, and turn it back on, the same problem occurs.

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Sounds like a weak capacitor. Whats the model number? I should be able to give you some input. Is this by any chance a mitsubishi ?

Posted on Apr 07, 2008

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theres a high voltage block that all three of the anode leads attach to and sometimes a small crack happens across this block and will not let some or all of the crt's get the high voltage all at once untill it heats up a bit. now if this is not your problem i would make sure that all three crt sockets are attached to there tubes all the way as maybe justy maybe there loose and will only work after ther expand a bit. Now another problem that could cause this problem to occor origially would be that someone left off a crt ground strap and the crt arched and popped and caused the problem with the High voltage block. And no I cant see a tube being bad then comming on at first UNLESS when you say the red comes on is the picture all red with small retrace lines(small white lines)in the screen with no picture except for red???? No video only a red blank screen is what i mean. If thats what its doing then yes Ive seen heater to cathode shorts on a picture tube that would cause this problem but to be sure your really gonna need to have the set looked at.. Good Luck

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