Hello, I've put online bad videos of Wondermega's RG-M1 & RG-M2 maintenance: Disassemble, cleaning, grease, remount test. If it can be usefull.... RG-M1: RG-M2:
Don't unmount all! To access to this board, just unscrew the four crew of the MD board (right), this screw are arount the cartridge port. After just raise this boar at vertical. Just be carrefull to the three pins connector (blues and black & two plane wire. They are sources of false contacts The video board is directly accessible, their is one connector and 3 screw to maintain it to the frame. Check my video, maybe it can this procedure visible.
Very cool stuff. I'd love to see high resolution pictures of the motherboards, if anyone is up for it.
Thanks. Your site doesnt let you view them in full res though or save images Some really interesting stuff in here, lots of JVC branded ICs. and omg look at all those LDOs. Its a pretty unique chipset.