Tetris Multi-jamma project
After been very happy with my first Multi-jamma project, in my Double Dragon cab, I have decided to Multi-jamma my Tetris. I have learn my lesson with my first project :-) and this time I will try my best to avoid the wiring nightmare ...
Same plan as before...having 9 pcb in the same cab ..my choices:
-Tetris -wonderboy -Bionic commando
-shadow dancer -great 1000 miles II
-vigilante -V-ball
-bubble-bobble -Ghools and Ghost
first thing to do, strip the cab, remove the old monitor, and add a brand new one !!!
the new monitor ...
Ouch ... dusty dusty ...
the cab is conpletly empty, everything has been remove, except the PSU...
This time, I did not wan to fix the PCB on the cab, I want something easy to remove them...so I build a Rack to hold them. I am not a carpenter ;-) but I did a very good job...no nails, only hot glue...
To support the Pcb rack, i fix on each side of the cab small pieces of wood. I also add a power strip, for the monitor and the 2 extra power supply. It is rewire to the main power of the cab ...
Everything need to be secure...
The power supply from the cab, will power the multi-jamma,but with 8 pcb i need more power. Thoose power supply generate a +5v @ 20 amps enought for 4 pcb...the calcul is easy: 8 pcb require 2 Psu...
this is where i got very smart ;-) i got all thoose PC power strip...+5 +12 and gnd they will fit perfectly...
each Psu need to be gounded to the multi-jamma, this time i pass more time doing a cleaner job
The multi-jamma ...the switch will be use to swap between games ...
