Here is the pinouts for a Master Mega Converter - not the official Sega one.
MS -> MD
1 A31 2 B28
3 N/C 4 B16
5 N/C 6 A12
7 A10 8 B4
9 B5 10 A6
11 B17 12 A4
13 B6 14 A19
15 A22 16 A25
17 A28 18 A29
19 * 20 *
21 * 22 A26
23 A23 24 A20
25 A17 26 A15
27 A13 28 A11
29 A9 30 A7
31 A5 32 A3
33 A8 34 N/C
35 * 36 B17
37 N/C 38 N/C
39 N/C 40 N/C
41 N/C 42 N/C
43 N/C 44 N/C
45 N/C 46 *
47 N/C 48 N/C
49 N/C 50 N/C
* See Diagram Below
* Diagram (simplified schematic)
19 20 21 35 46
| | | ____ | |
|---|---|---o o----|---vvvv---|---| |---|---|
| | | | | | | | |
A18 B10 A1 B11 A2 B9 B30 B32 A32
/\ /\
Pushbutton 56k Resistor
(SMS Pause)
Sorry if it isn't clear, i'll verify anything about it.
EDIT: corrected some errors
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