SEGA Master System repro PCB, handling SLOT 1 & 2, using 2x GAL in DIP package
An easy-to-solder SEGA Master System PCB (DIP format),
compatible with slot 1 / 2,
with a capacity of 512kB
(covering most of the Master System library and homebrew, like Alex Kidd hacks).
Works on SMS. Should work on MD and Mark III (no special pin used)
BUS pins used : D0..D4, A0, A13..A15, /OE, /CE, /WE and /RESET
IC0. FLASH, compatible with:
29F***/39SF*** (Flash) 512Kb MAX (see datasheets for compatibility!)
NB. can be rewritten after soldering (depend of your dumper/writer).
IC1. GAL22V10
file: XKGSMSM1_IC1-v10.jed
added a XKGSMSM1_IC1-v10_TL866.jed (headerless file)
IC2. GAL16V8
file: XKGSMSM1_IC2-v8.jed
Capacitors:
3x 100nf ceramic (50v). 5.08mm
1x Electrolytic capacitor between 10uf, 22uf or 47uf, 6.3v~10v, 2.54mm
search for "electrolytic 22uf 6.3v"(example)
THE ROM NEEDS TO:
- be compatible with SEGA mapper scheme
- use slot 1 and/or 2
NOT SUPPORTED:
- slot 0 (Space Gun)
- SRAM save
Also posted at SMSpower!
Some pics!
Happy soldering,
ICHIGO