Bootleg MVS boards

They exist ! Nightmare Tony's comment is [here].

Some pictures from http://mvs.gotwalls.com/

=Bootleg MV1FZ=




 * Vertical board is soldered
 * Normal DIP format 68k CPU
 * Through-hole 5% resistors video DAC
 * Custom chips are marked "A66" ( ?), "NO-03", "NO-5" (and a blank one)
 * Original YM2610
 * Uses a bunch of PALs
 * Backup RAM saved by a supercap

=Bootleg MV1FZ=




 * Uses the same "NO-03" and "NO-5" chips as above
 * Gold nugget 16MHz 68k CPU !
 * The "9817 870768593" chip is probably the same as "A66"
 * Space for a QFPR clone of the YM2610 in U1A ?
 * Uses a bunch of PALs
 * RAM chips on the back side
 * Backup RAM saved by a supercap

="Gobit" bootleg=




 * First gen chipset
 * Vertical board is soldered
 * Custom chips are marked "68C101", "68C202" and "68C303"
 * Socketed Toshiba Z84 Z80 and Motorola 68k CPUs
 * clone named ECW08-4 ?
 * 4 ROMs as in original MVS boards: BIOS, SFIX ROM, M1 ROM, LO
 * Backup RAM saved by a supercap

="Goldstar" version=




 * First gen chipset
 * Normal DIP format overclocked (!) 10MHz 68k CPU
 * Through-hole 5% resistors video DAC
 * Custom chips are marked "NEN0.4","007","NEN08","NEN09"
 * Socketed original YM2610
 * Backup RAM saved by a supercap