Pac-man (bootleg) by channelmaniac
Model: Pac-1 / Pac-2 Pac Man board set Symptom: Dead. Audio amp chip gets VERY hot.
Board has 2 edge connectors. The smaller one had a homebrew JAMMA adapter connected to it.
Board had activity on the EPROMs but no video out. Checked the pinout of the board on the large connector, traced it over to the small connector, and found that the board did not have the video pinned out correctly to the adapter. Checked the pinout and found the adapter to be totally wired wrong.
Rewired the adapter and when pinning out the small connector I found that there was no Coin 1 input on it. Used an unused pin and wired it to the Coin 1 pin on the large connector. Tested the board when finished.
Model: Pac-1 / Pac-2 Pac Man board set Tip: Pinout for small connector
1: Gnd
2: Gnd
3: Gnd
4: Speaker +
5: +12v
6: N/C
7: N/C
8: N/C
9: +5v
10: Player 1 Down
11: Player 2 Down
12: Player 2 Start
13: Player 1 Start
14: Player 1 Right
15: Player 1 Left
16: Blue
17: Green
18: Sync
A: Gnd
B: Gnd
C: Gnd
D: Speaker Gnd
E: +12v
F:
H:
I:
K: +5v
L:
M:
N: Coin 1 (Must be added! Connect to pin I on the large connector - across from pin 8)
P: Coin 2
R: Player 1 Up
S: Red
T: Player 2 Right
U: Player 2 Left
V: Player 2 Up
Coin 1 input is NOT available on the small connector. Use the unused pad at location N to add it. Run a jumper wire from Pin I on the large connector to the pad at location N.
Model: Pac-1 / Pac-2 Tip: Software ROMs
The ROMs aren't readily available for this board but, the Namco Pac Man code is what it uses. It's just divided into 2716 EPROMs instead of 2732.
I didn't test all of them, but the EPROMs I did check are coded as this:
Pac-1 CPU board:
6E: Lower half of namcopac.6e
6F: Lower half of namcopac.6f
6H: Not checked
6J: Not checked
6K: Upper half of namcopac.6e
6M: Upper half of namcopac.6f
6N: Not checked
6P: Not checked
I would assume the rest would follow suit as would the video EPROMs on the Pac-2 video board.
The ROM code was found in the puckman.zip file used for MAME.
Model: Pac-1 / Pac-2 Pac Man board set Tip: Pinout for large connector
1: Gnd
2: Gnd
3: +5v
4: +5v
5: +7.5v Unregulated
6: 2 Player Start Lamp
7: Coin Counter
8: Coins 2 Switch
9: Service Switch
10: 2 Player Start
11: 1 Player Right
12: 2 Player Up
13: 2 Player Right
14: 1 Player Down
15: Gnd (Use for Speaker -)
16: Video Green
17: Video Sync
18: Speaker +
19: +12v
20: +12v
21: Gnd
22: Gnd
A: Gnd
B: Gnd
C: +5v
D: +5v
E: +7.5 Unregulated
F: 1 Player Start Lamp
H: Lock Out Solenoid
I: Coin 1 Switch
K: Test Switch
L: 1 Player Start
M: 1 Player Left
N: 1 Player Up
P: 2 Player Left
R: Gnd for Table Mode (Unconnected for upright)
S: Gnd
T: Video Red
U: Video Blue
V: 2 Player Down
W: +12v
X: +12v
Y: Gnd
Z: Gnd
Pinout courtesy of the Mowerman website. His site was down at the time I needed this but the Internet Archive had a copy.
