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Yes i know this projector inside and out. I'm the person to talk to about this projector. Its a very crappy design, and an extremely rare projector. Although they will play forever if you take care of them.
Your case is probably a open resistor in the feedback circuit off the splitter assembly, and the splitter assembly also known to go bad. (i had to unpot and rewind mine, as i never found a suitable replacement. and i WILL NOT DO THIS AGAIN. it was terrible).
The orientation and convergence setup is done on that little board in the middle of the unit. I am going to warn you that the convergence is piss poor on these particular projectors, and they are video grade only.
I was going to re-wire mine to use digital convergence, but I cannot find schematics/data on this particular set.
Also, the CRTs are round, and the glycol chamber is part of the tube. on mine, the blue tube glass cracked, (CRT is fine, still works) and the glycal leaked out. I had to get a new peice of glass cut for the chamber, dig out the silicon, and replace the fluid and redo the silicon seal.
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