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Re: vertical rolling of picture
If the picture rolls while both on cable as well as when you playback a tape or DVD, it could be caused by a bad filter capacitor in the power supply or vertical deflection circuits. If it only rolls while trying to view a picture from a cable/satellite box, then that component is likely at fault.
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this was adjusted by the fine tune on the selector It is the picture not being held in place by being out of tune Same as if the picture goes sideways On the real old units there were 2 knobs to make these adjustments.
The Height adjustment is off... look in the back of the TV set, it has some knobs in the back, one should be vert.lin for Vertical Linearity adjustment, and there is another call Vert.Hgt. for Vertical Height adjustment. try adjusting the Vertical Height first with someone watching in the front of the big TV to see if the top comes back into view, you might have to adjust the knob very slowly one way then the other way, to make this adjustment. If it doesnot adjust take it to a TV shop to get it repaired.
Standard CRT televisions have a vertical roll adjustment,usually on the back at the bottom. It may look like a white finger-knob (about the size of a pencil eraser) with a small screwdriver slot in the end...or it may be a roll-wheel...either way, it will be labeled "vertical" (or just "vert").
Make slow adjustment to the vertical until the roll stops.
*Use a solid signal for the adjustment, like DVD, VCR or cable...a weak signal can cause a bit of roll, too.
The sync is automatic. There are no knobs to turn. If the picture is rolling, look first to the source connection and make sure your tv has a solid vertical sync connection. If you are using the RF input then the issue could be within your small signal board also known as the SSB. Good luck.
many older tv's had a vertical synch adjustment knob which would correct this, but I doubt yours has one thats accesible without opening the case. If you decide to open the case, be very careful of the flyback and other high voltage points, even when it's unplugged.
possibly there will be a trim pot on one of the boards silkscreened V SYNC.