VideoPong by VideoPlay International
Technical Information

PCB Photo: (click for larger image)

I had to repair mine without schematics or a manual - one appears to have never been scanned to a pdf.
Here are my notes, in case someone needs them.

The board is marked on the back (circuit side) with the following:
AS1001 JAN-75
REV C
SER [serial number written here mine is 2011]

There are two switches on the game board. One marked (11 and 15) controls the score at which the game ends. The other, marked (NW - W) - I can't remember what it does. There is also a small POT on the board - don't know what it does either.

Pinouts

Pin	Wire color	Function
1	Green	Coin Switch
2	Yellow	Coin Switch
3	Purple	Player / Computer Switch?
4	Gray	Player Control POT - Right Bottom
5	Brown	Player Control POT - Right Top
Key
6	Orange	Player Control POT - Left Top
7	Pink	Player Control POT - Left Bottom
8	Orange, White, White	Ground
9	Red x2	+5v DC
10	Yellow	?
11	Black	Free Game LED
12	Red	Free Game LED
13	Pink	Video Input
14	Yellow	Start Game Button
15	Orange	Audio Out (to Monitor for Amplification)

 

Motorola XM501 Monitor - Molex Pinout

Pin	Wire Color	Function
1	Pink	Video Input
2	-	-
3	White x2	DC Ground
4	Orange	Audio Input
5	Green	Audio Out (to Speaker)
6	Red x2	+5v DC Output to game PCB
7	Light Green	AC Common Ground
8	Green / White	Audio Out (to Speaker) Paint Dot Side
9	Purple	AC Low
10	Gray	AC High