Re: Friend picked up a Sankyo Kunoichi Story with vertical collapse on its CRT..
You're unlikely to find schematics or any details about the monitor, so you either have to go in blind and attempt a repair, or find an LCD panel of a similar size with RGB inputs and replace it.
When I was doing CRT TV repairs back in the day, we often didn't have schematics to work from, so we'd have a set of data books for common ICs used in TV sets, and look at the example circuits for any chips we found on the board and then try to figure out which components on the board did what. Hopefully there will be something on the internet that you can get a similar example circuit diagrams from, or at least determine which section of the circuit board is the frame output stage.
For the repair attempt, I would check the connections and wiring to the scan coils and then carefully check the soldering on the PCB around the frame output stage, you might get lucky and find a dry joint (that was my first ever TV repair at age 8, a dry joint on an electrolytic capacitor in the frame output stage causing frame collapse!). Then replace all the electrolytic capacitors in the same area, and finally replace the frame output transistor (if it has one) and then the frame output chip (if you can get hold of one!).
If this sounds a bit complicated, then post some pics of the monitor and its printed circuit boards and we can try to talk you through it.
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