Galaga bootleg schematics wanted

papapopop

Member
Joined
Apr 19, 2010
Messages
120
Reaction score
3
Location
Osnabrueck
Hello,
does anyone have schematics of the above pcb and send to me as pdf ?
It is the pcb with four Z80 CPUs. The schematics from mikesarcade is a very bad scan. I can´t see anything.
Thanks in advance.
 
Hi,
the CPU board is signed with MGG-703A, the Video board MGG-03B.
Think it is hopeless to get schematics for bootlegs.Found out that the company who made the bootleg pcb uses the same logic as the original.The difference is, that they have other positions for the ttls.(The clock oscilator TTL(74LS368) original Position 5A, on my board 6A and so on. OK a lot of work by hand. I am not shure if I have the correct ROMs. Does anyone have the ROM-images ? There are also two unknown ICs position 1A(IDA) and 5C(CC). Proms ?
Thanks for any hints.
Greets
 
any pics of the board(s). I have two bootleg boards and am looking for something that looks similar. I will post a few pics of my boot leg boards next week.
 
I have been looking for Nebulous Bee and Gallag schematics for years. :( Good luck!

Scott C.
 
I have been looking for Nebulous Bee and Gallag schematics for years. :( Good luck!

Scott C.

I have a download copy of the original Galaga schematics but can't find much for the Nebulous Bee.

I have a wiring harness for the Nebulous Bee and could give you the pin out if that would help.

I really hate working on something with out the schematics.
 
Hi,
thanks for your quick reply.
Here the link to the pic of my pcb:
http://www.arcadeshop.com/galaga/galaga-boot-cpu-a.jpg
Do you have the ROM files ?
Thanks in advance
Greets

I have one set of my roms left as I sent the others to channelmanic for testing. I could download my good set and send to you. I have two different types of boot leg boards and neither of em look like yours. If you want, I can duplicate mine or give you my check sums.
 
Hi,
after hours of backtracing signals, I found the schematics for my pcb.
Look at mikesarcade "GalagaSchematicsGreenMissingPage3".
Greets
 
Back
Top Bottom