Typed in by Jonathan Deitch (jdeitch@umiami.miami.edu) Updated by John L. Cwikla (cwikla@wri.com) 9/10/95 T. Franklin Bowen (mjrhavoc@clark.net or tfbowen@ingr.com) Added undocumented composite video sync and joystick pins Game : Centipede Note : * denotes an intverted signal -> denotes Cocktail N.C. means No Connection @ means not documented Wiring List for P20: | --------------------------------|----------------------------------- GND | A | 1 | Ground ----------------------------|---|---|------------------------------- + 5 V | B | 2 | + 5 V ----------------------------|---|---|------------------------------- + 12 V | C | 3 | + 22 V DC ----------------------------|---|---|------------------------------- - 5 V | D | 4 | - 22 V DC ----------------------------|---|---|------------------------------- | E | 5 | Center Coin Counter ----------------------------|---|---|------------------------------- Left Coin Counter | F | 6 | Right Coin Counter ----------------------------|---|---|------------------------------- | H | 7 | ----------------------------|---|---|------------------------------- Start 1 LED * | J | 8 | Start 2 LED * ----------------------------|---|---|------------------------------- | K | 9 | -> Fire Button 2 ----------------------------|---|---|------------------------------- Start 2 * | L | 10| Fire Button ----------------------------|---|---|------------------------------- Start 1 * | M | 11| -> Tball Horiz Clock 2 ----------------------------|---|---|------------------------------- Tball Horiz. Clock | N | 12| -> Tball Vert. Clock 2 ----------------------------|---|---|------------------------------- Tball Vert. Clock | P | 13| Self Test * ----------------------------|---|---|------------------------------- Left Coin Slot * | R | 14| Right Coin Slot * ----------------------------|---|---|------------------------------- | S | 15| Cocktail (Tie to GND) ----------------------------|---|---|------------------------------- Center Coin Slot * | T | 16| -> Horiz. Dir. 2 ----------------------------|---|---|------------------------------- Tball Horiz. Dir. | U | 17| -> Vert. Dir. 2 ----------------------------|---|---|------------------------------- Reset (N. C.) | V | 18| Tball Vert. Dir. ----------------------------|---|---|------------------------------- | W | 19| ----------------------------|---|---|------------------------------- Ground (Coin Door) | X | 20| ----------------------------|---|---|------------------------------- + 5 V (Controls) | Y | 21| + Sense ----------------------------|---|---|------------------------------- | Z | 22| - Sense -------------------------------------------------------------------- Wiring List for P19: | --------------------------------|----------------------------------- | A | 1 | Audio 2 Out ----------------------------|---|---|------------------------------- | B | 2 | Audio 1 Out ----------------------------|---|---|------------------------------- | C | 3 | ----------------------------|---|---|------------------------------- | D | 4 | P1 Joystick Up @ ----------------------------|---|---|------------------------------- P1 Joystick Left @ | E | 5 | P1 Joystick Right @ ----------------------------|---|---|------------------------------- P1 Joystick Down @ | F | 6 | P2 Joystick Left @ ----------------------------|---|---|------------------------------- P2 Joystick Up @ | H | 7 | P2 Joystick Right @ ----------------------------|---|---|------------------------------- P2 Joystick Down @ | J | 8 | Video Green ----------------------------|---|---|------------------------------- Video Red | K | 9 | Video Blue ----------------------------|---|---|------------------------------- Video Return | L | 10| Video Vert. Sync. ----------------------------|---|---|------------------------------- Video Horiz. Sync | M | 11| -------------------------------------------------------------------- | N | 12| Video Composite Sync. @ --------------------------------------------------------------------