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Prodest PC1 : Pinouts

Video 1

Video 1 contains various signals which can be used to connect the PC1 to a television. Pin numbers are given for creating a PC1-to-SCART lead.

Pin numberMeaningSCART pin number
1Blue video7
2Green video11
3Red video15
4Ground5, 9, 13, 17 and 18
5Sync20
6unknownnot connected
7Composite videonot connected
8Function switching8

Mouse

The mouse port is for a quadrature mouse, like the one used on Amstrad's early PCs. However, the pinout is different. This table lists the pins, including pin numbers for a lead that can be used to connect a PC1512 mouse to the PC1.

Pin numberMeaningAmstrad mouse pin number
1Right button9
2Left button6
3XA1
4YB4
5+5v7
6YA3
7XB2
8Ground8
9ENA8

If ENA is not pulled low, the PC1 assumes a joystick is connected to the mouse port. It's possible that a standard Atari pinout is used in this case.


John Elliott 12 June 2004