I own a VS45607 it's a great TV it started having a rolling
picture about two months ago. The picture would not always roll if you turned the TV off/on a couple times. When you got it to stop rolling then it was dark, but got lighter after warming up. The picture stops rolling after the TV warms up a bit...MOST OF THE TIME. Now, it takes longer to get it to stop rolling. What can I do?
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Re: Picture is Rolling..stops after some warm-up
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.
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You have a failing eeprom. The location on the board is IC002. The correct eeprom depends which microprocessor [IC001] and stereo decoder [IC1001] is used in your TV board. When removing old eeprom , insert a eight pin socket and solder into place. Now you may insert the new eeprom. This will be handy the next time you need to replace this IC the next time!
TV was working fine, moved to new home and the problem began. Picture rolls to the right, picture is fuzzy and will clear up somewhat at times. The picture will stop rolling at times also,but may be a half and half screen. Sound is fine, can you help me with this problem please.
Try replaceing capacitors C2C52 10uf 50V capacitor and also C2P05 100uf 16V capacitor. these are both on the signal board. It that doesnt correct the issue replace IC2P01 which is the 9volt regulator also located on the signal board. That should take care of your problem
1. HORIZONTAL PULLING AND TEARING, MAY ALSO HAVE VERTICAL ROLLING OR VERTICAL BLANKING BAR LOCKING IN THE MIDDLE OF THE PICTURE. CHECK C2C52 10 UFD @ 50 V OFF THE BASE OF Q2C51 ON THE SIGNAL PCB. 2. CHECK C2P05 100 UFD 16 V OFF PIN 3 OF IC2P01 (9-VOLT REGULATOR) ON THE SIGNAL PCB