Poker Ladies (Censored bootleg, encrypted)

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EMU Infos
dumper Corrado Tomaselli
date 14/01/2010
emulator MAME 0.136u2
dev David Haywood
PCB Infos
name pkladiesbl on ProgettoEMMA
pkladiesbl on Arcade Database
description Poker Ladies (Censored bootleg, encrypted)
year 1989
manufacturer Playmark

Technical references

CPUs

QTY Type clock position function

ROMs

QTY Type position status

RAMs

QTY Type position

PLDs

QTY Type position status

Others

Notes

Poker Ladies bootleg made by Playmark (PM stickers and pcb layout is same as many others Playmark bootlegs)
PCB is jamma standard while the original is mahjong pinout and require matrix inputs.
It has no EEPROM but 2 banks of dipswitch
The bootleg has some gfx glitches (flickering of the text) and the colour of the background is totally black.
Encrypted custom z80 in epoxy block. Clock is 12mhz/2
YM2413 clock is 3.75mhz. The 7.5mhz clock, which is divided by 2 by a 74ls74 before going to the YM2413, is too difficult to follow.
It is derived from the 10mhz pixel clock since shorting it the video goes out of sync and the music change in pitch/speed.
Oki5205 clock is 384khz (resonator)
Vsync is 59.09hz

Files

876