Typed in by Jonathan Deitch (jdeitch@umiami.miami.edu) 44 Pin wiring chart for Galaxian SOLDER SIDE | PARTS SIDE ------------------------------------|-------------------------------------- GND | A | 1 | GND --------------------------------|---|---|---------------------------------- GND | B | 2 | GND --------------------------------|---|---|---------------------------------- +5 VDC | C | 3 | +5 VDC --------------------------------|---|---|---------------------------------- +5 VDC | D | 4 | +5 VDC --------------------------------|---|---|---------------------------------- | E | 5 | Coin Slot Return --------------------------------|---|---|---------------------------------- | F | 6 | --------------------------------|---|---|---------------------------------- | H | 7 | Coin Slot Send --------------------------------|---|---|---------------------------------- Coin Switch | J | 8 | --------------------------------|---|---|---------------------------------- Service Switch | K | 9 | Credit Switch --------------------------------|---|---|---------------------------------- Player One | L | 10| Player Two --------------------------------|---|---|---------------------------------- Move Left | M | 11| Move Right --------------------------------|---|---|---------------------------------- Fire | N | 12| --------------------------------|---|---|---------------------------------- | P | 13| --------------------------------|---|---|---------------------------------- | R | 14| --------------------------------|---|---|---------------------------------- Video Ground | S | 15| Input Switch Ground --------------------------------|---|---|---------------------------------- Video Red | T | 16| Video Green --------------------------------|---|---|---------------------------------- Video Blue | U | 17| Video Sync --------------------------------|---|---|---------------------------------- Speaker | V | 18| Speaker --------------------------------|---|---|---------------------------------- + 12V | W | 19| + 12V --------------------------------|---|---|---------------------------------- - 12V | X | 20| - 12V --------------------------------|---|---|---------------------------------- GND | Y | 21| GND --------------------------------|---|---|---------------------------------- GND | Z | 22| GND --------------------------------------------------------------------------- Internet: musjndx@gsusgi2.gsu.edu Fidonet: Jonathan Deitch@1:133/411.7 jdeitch@gisatl.fidonet.org Bellnet: 1 - (404) - 261 - 3665 ----------------------------------------------------------------------------- Atlanta 1996 !! | Play Pinball !! | Don't Panic ! | "I hate it when I can't --------------------------------------------------| trust my own technology!" "Thrills! Chills! Magic! Prizes!" -- Hurricane | -- Geordi LaForge Gene Roddenberry, Isaac Asimov, Jim Henson, Dr. Seuss, Mel Blanc ... Sigh ... Pinouts for Midway's GALAXIAN: typed by Greg Kam * NOTE This pinout is to be used on a converted Galaxian to operate on DC voltages. Conversion instructions follow the pinout. Comp Side | Solder Side -----------------|---|---|---------------------- GND | A | 1 | GND -----------------|---|---|---------------------- GND | B | 2 | GND -----------------|---|---|---------------------- +5 VDC | C | 3 | +5 VDC -----------------|---|---|---------------------- +5 VDC | D | 4 | +5 VDC -----------------|---|---|---------------------- | E | 5 | Coin Slot Return -----------------|---|---|---------------------- | F | 6 | -----------------|---|---|---------------------- | H | 7 | Coin Counter -----------------|---|---|---------------------- Coin Switch 1 | J | 8 | Coin Switch 2 -----------------|---|---|---------------------- Test Switch | K | 9 | Credit Switch -----------------|---|---|---------------------- P1 Start | L | 10| P2 Start -----------------|---|---|---------------------- P1 Left | M | 11| P1 Right -----------------|---|---|---------------------- P1 Fire | N | 12| P2 Fire -----------------|---|---|---------------------- P2 Left | P | 13| P2 Right -----------------|---|---|---------------------- GND for Table | R | 14| -----------------|---|---|---------------------- Video GND | S | 15| GND -----------------|---|---|---------------------- Video RED | T | 16| Video GREEN -----------------|---|---|---------------------- Video BLUE | U | 17| Video SYNC -----------------|---|---|---------------------- Speaker (-) | V | 18| Speaker (+) -----------------|---|---|---------------------- +12 VDC | W | 19| +12 VDC -----------------|---|---|---------------------- +12 VDC | X | 20| +12 VDC -----------------|---|---|---------------------- GND | Y | 21| GND -----------------|---|---|---------------------- GND | Z | 22| GND -----------------|---|---|---------------------- Conversion from AC to DC ------------------------ Short the following components on the board: D4 D5 D6 D7 R87 ROMs ----- U, V, W, Y, Z are NEC 2716s "886J" is a Fujitsu 8516 (read in as a 2716) "866L" is a Gen. Instr. 9316 (read in as 2716) ROM PB-10 Checksum ----------------------- U...........5B78 V...........F481 W...........E0E3 Y...........48F5 Z...........292F 866J........1D08 866L........D037