Question about Televison & Video
Why does the picture roll
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Posted on Jan 02, 2017
SOURCE: PROBLEMS WITH VERTICAL ROLL
That is not a vertical roll from side to side, this is a horizontal rolling. if the vertical had a roll it would be going from top to bottom. This is most likely a coupling between the horizontal sync circuit and the sync separator circuit. Good Luck
Posted on Jun 28, 2007
I have seen this many times. There is a 9 volt regulator on the small signal board that causes this. The regulator goes bad and the 9 volts starts dropping, especially at start-up when the regulator is cold. If the voltage is below 8 volts then the picture gets dark and the vertical becomes unstable, with the picture squeezing down and/or rolling. As the regulator warms up the voltage starts rising back towards 9 volts and the symptoms start clearing up. There are 3 regulators in a row on the board and the regulator in the middle is always the bad one. Replacing that regulator should cure your problems but it should be replaced by someone experienced in servicing Mitsubishi projection TV's because pulling the chassis out is quite tricky.
Posted on Aug 05, 2007
SOURCE: Picture rolls
Same as sherpi here, player was fine, and all of sudden started rolling and never stops. Rolls with or without a disc in it...seems to play the discs fine, but never quits rolling.
Posted on Aug 20, 2008
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