Locating information specific to the Namco Pole Position 2 pin outs proved to be a challenge. The Atari pin outs are easy enough to find and are documented on a number of sites (although a number of sites reference the same documentation). The Atari PCB uses a 30 pin connector on the video board and a 44 pin connector on the CPU board. The Namco board set however uses a 20 pin connector on its video board and a 36 pin connector on the CPU board.
After much Googling, I came across a YouTube video showing the exact Namco PCB I owned. Interested, I took a look and read the comments. Tucked away in the comments was a link to a Japanese website that supposedly contained the pin outs for the Nambo Pole Position board set. Returning to Google with the web address, I was able to view a translated version. I was happy to see that this was the actual pin out for the Namco board set!
I’ve reproduced the pin out diagram here:
– CPU Board (J4): 36 Pin
Component side |
|
|
Solder Side |
+12V OUT |
A |
1 |
+12V OUT |
LOCK OUT |
B |
2 |
START LAMP |
COIN COUNTER 1 |
C |
3 |
COIN COUNTER 2 |
SERVICE |
D |
4 |
TEST |
COIN 1 |
E |
5 |
COIN 2 |
START 1 |
F |
6 |
START 2 |
N/A |
H |
7 |
SHIFTER |
GND |
J |
8 |
GND |
SOUND 1 |
K |
9 |
SOUND 2 |
SOUND 3 |
L |
10 |
SOUND 4 |
SOUND GND |
M |
11 |
SOUND GND |
VOL GND |
N |
12 |
VOL GND |
GAS |
P |
13 |
BRAKE |
VOL VCC |
R |
14 |
VOL VCC |
+5V OUT |
S |
15 |
+5V OUT |
N/A |
T |
16 |
N/A |
STEERING 1 |
U |
17 |
STEERING 2 |
GND |
V |
18 |
GND |
* connect the “START 1” and “START 0”
– Video Board (J1): 20 Pin
Component side |
|
|
Solder Side |
SP FRONT R+ |
A |
1 |
SP FRONT R- |
SP FRONT L+ |
B |
2 |
SP FRONT L- |
SP REAR R+ |
C |
3 |
SP REAR R- |
SP REAR L+ |
D |
4 |
SP REAR L- |
VIDEO RED |
E |
5 |
VIDEO GREEN |
VIDEO BLUE |
F |
6 |
VIDEO SYNC |
VIDEO GND |
H |
7 |
VIDEO GND |
GND |
J |
8 |
SOUND 1 |
SOUND 2 |
K |
9 |
SOUND 3 |
SOUND 4 |
L |
10 |
SOUND GND |
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