Galaga 1 -------- Solder Parts ------ ------- Sync A|1 2P Fire Green Video Signal B|2 2P Left Blue Video Signal C|3 2P Right 1P Left D|4 Red Video Signal 1P Right E|5 1P Fire 1P Start F|6 2P Start Service H|7 Table GND GND J|8 GND Coin K|9 +5V L|10 +5V M|11 +5V N|12 Test Switch P|13 +12V R|14 +12V Audio - S|15 Audio + GND T|16 GND GND U|17 GND GND V|18 GND DIP SWITCH SETTINGS -------------------- (BANK A) 1 2 3 4 5 6 7 8 FUNCTION: ------------------------------------------------------ On On On Free Play Off Off Off 1 Coin/1 Credit Off Off On 1 Coin/2 Credits Off On Off 1 Coin/3 Credits On Off Off 2 Coins/1 Credit Off On On 2 Coins/3 Credits On Off On 3 Coins/1 Credit On On Off 4 Coins/1 Credit DIPSWITCHES 4-8 CONTROL BONUSES, (BANK B) 1 2 3 4 5 6 7 8 FUNCTION: ------------------------------------------------------ Off Off Rank A On On Rank B Off On Rank C On Off Rank D ? Not Sure Yet On Sound in Attract Mode Off NO Sound in Attract Mode On Halts Game (YES! A PAUSE!) Off UNPAUSED ? ? ? Not Sure Yet ====================================================================================== ====================================================================================== Galaga 2 -------- PARTS SIDE | SOLDER SIDE ------------------------------------------------------------------------------------ LOGIC GND | A | 1 | LOGIC GND SPEAKER - | B | 2 | SPEAKER + Coin Lockout | C | 3 | COIN METER 1 1P.Start Lamp | D | 4 | 2P.Start Lamp +12V | E | 5 | +12V +5v | F | 6 | +5v LOGIC GND | H | 7 | LOGIC GND Service SW | J | 8 | TEST SWITCH (Tilt connected to this) COIN 1 | K | 9 | COIN 2 1P.START | L | 10| 2P.START (To rapid fire brd #7) 1P.FIRE | M | 11| 2P.FIRE 1P.LEFT | N | 12| 2P.LEFT | P | 13| 1P.RIGHT | R | 14| 2P.Right | S | 15| | T | 16| | U | 17| GREEN | V | 18| BLUE RED | W | 19| SYNC Coin Meter 2 | X | 20| | Y | 21| GND FOR TABLE LOGIC GND | Z | 22| LOGIC GND -------------------------------------------------------------------------------- On the CPU board there is an additional 3-part connector. This is power. It's wired as follows: 1 - +12v 2 - GND 3 - +5v On the Video board, there is an additional 6-part connector. This is the video connector. It's wired as follows: 1 - RED 2 - BLU 3 - GRN 4 - SYNC 5 - VIDEO GND 6 - (Not used) Galaga also has the option of a Rapid Fire board. This is a small board that allows the fire button to be held down and your ship to continuously fire shots at the enemy. Holding this board with the circuits facing you and the connectors on the bottom, the pins are numbered 1-9 (with #3 missing). The top set of connectors (J-1) is used for rapid fire, the bottom set (J-2) is used for single fire. It's wired as follows: 1 - (Not used) 2 - (Not used) 3 - (Not present) 4 - (Not used) 5 - FIRE BUTTON (GND) 6 - LOGIC GND 7 - FIRE (From Galaga CPU board) 8 - FIRE BUTTON 9 - +5v There are two sets of DIP switches on the Galaga CPU board. They are labeled 6J and 6K (6K is on top). 6J is used for setting the difficulty of Galaga. Switch 7 is not used on 6J, the rest are as follows: Switch #1 is used for selecting the type of 1 or 2 player games: When this switch is OFF: 1 Player Game: Press the 1 player start button. %w, 3, 4, or 5 fighters. 2 Player Game: Press the 2 player start button. 2, 3, 4, or 5 fighters EACH. When switch #1 is ON: 1 Player Game: Press the 1 player start button. 2, 3, 4, or 5 fighters. 1 Player Game: Press the TWO PLAYER start button for a ONE PLAYER game with 5, 7, 9, or 11 fighters. SW2 SW3 ------------------------------------------------- OFF OFF Rank "A" - Easiest level of play. ON ON Rank "B" OFF ON Rank "C" ON OFF Rank "D" - Hardest level of play. SW4 SW5 ---------------------------------------------------------------------- ON Sound during ATTRACT MODE. ON Freeze Video. OFF No sound during ATTRACT MODE. OFF Monitor operates normally. SW6 SW8 ---------------------------------------------------------------------- ON Automatic rack advance. ON Coin counter one way. OFF Normal operation. OFF Coin counter two way. Switch bank 6K sets the number of credits, lives and lives given at certain scores: SW1 SW2 SW3 (Coins per Credit) -------------------------------------------- ON ON ON FREE PLAY ON ON OFF 4 Coins 1 Credit ON OFF ON 3 Coins 1 Credit ON OFF OFF 2 Coins 1 Credit OFF ON ON 2 Coins 3 Credits OFF ON OFF 1 Coin 3 Credits OFF OFF ON 1 Coin 2 Credits OFF OFF OFF 1 Coin 1 Credit SW4 SW5 SW6 (Bonus ships awarded.) Began with 2, 3, Began with 5 or 4 fighters fighters. ---------------------------------------------------------------- 1st SHIP 20000 1st SHIP 30000 ON ON OFF 2nd SHIP 60000 2nd SHIP 100000 AND EVERY 60000 AND EVERY 100000 ----------------------------------------------- 1st SHIP 20000 1st SHIP 30000 ON OFF ON 2nd SHIP 70000 2nd SHIP 120000 AND EVERY 70000 AND EVERY 120000 ----------------------------------------------- 1st SHIP 20000 1st SHIP 30000 ON OFF OFF 2nd SHIP 80000 2nd SHIP 150000 AND EVERY 80000 AND EVERY 150000 ----------------------------------------------- 1st SHIP 30000 1st SHIP 30000 OFF ON ON 2nd SHIP 100000 2nd SHIP 100000 AND EVERY 100000 ----------------------------------------------- 1st SHIP 30000 1st SHIP 30000 OFF ON OFF 2nd SHIP 120000 2nd SHIP 120000 AND EVERY 120000 ----------------------------------------------- 1st SHIP 20000 1st SHIP 30000 OFF OFF ON 2nd SHIP 60000 2nd SHIP 150000 ----------------------------------------------- 1st SHIP 30000 ONE SHIP 30000 OFF OFF OFF 2nd SHIP 80000 ONLY ----------------------------------------------- ON ON ON NO BONUS SHIPS GIVEN WITH THIS SETTING ---------------------------------------------------------------- SW7 SW8 (Number of fighters to start with) ---------------------------------------------------------------- ON ON 2 Space Fighters ON OFF 3 Space Fighters OFF ON 4 Space Fighters OFF OFF 5 Space Fighters ====================================================================================== ====================================================================================== Galaga 3 ======== There are two boards, both with blue solder masks. The top one (slightly larger) is the CPU board, has the 4 processors and program EPROMS, and holds a small credit-card sized daughter board that plugs into a 28-pin DIP socket near the EPROMS. It also has 'DG-09-2' silk-screened in one corner near the main connector. The bottom board is the video board. It has a small 5 pin connector in one corner for the video output signal, wired as follows : (closest to corner of board) 1 - Red 2 - Blue 3 - Green 4 - Sync 5 - Video GND Note in my game, this connector has had wires soldered straight to it and these brought around and soldered to the main connector in the positions shown below, and the monitor wired to this connector instead. Main connector: PARTS SIDE | SOLDER SIDE ------------------------------------|-------------------------------------- GND | A | 1 | GND GND | B | 2 | GND +5V | C | 3 | +5V +5V | D | 4 | +5V | E | 5 | | F | 6 | tabletop (closed) or upright (open) SW Player 1 RIGHT SW | H | 7 | Player 2 RIGHT SW Player 1 LEFT SW | J | 8 | Player 2 LEFT SW Player 1 FIRE SW | K | 9 | Player 2 FIRE SW Player 1 START SW | L | 10| Player 2 START SW | M | 11| Coin SW | N | 12| Test/Setup Mode SW Video Red (see above) | P | 13| Video Green (see above) | R | 14| Video Blue (see above) | S | 15| Video Sync (see above) | T | 16| | U | 17| Speaker (to GND) +12V | V | 18| +12V +5V | W | 19| +5V +5V | X | 20| +5V GND | Y | 21| GND GND | Z | 22| GND --------------------------------------------------------------------------- Power comes in on the above connector. There are two sets of DIP switches on the Galaga CPU board. I'll label them SWA and SWB following the schematic. SWA is closest to the corner of the board (located at 11C), SWB closest to the main connector (located at 11E). Switch bank SWA sets the number of credits, lives and lives given at certain scores. SW1 SW2 SW3 (Coins per Credit) -------------------------------------------- ON ON ON FREE PLAY (although this doesn't seem to work for me) ON ON OFF 4 Coins 1 Credit ON OFF ON 3 Coins 1 Credit ON OFF OFF 2 Coins 1 Credit OFF ON ON 2 Coins 3 Credits OFF ON OFF 1 Coin 3 Credits OFF OFF ON 1 Coin 2 Credits OFF OFF OFF 1 Coin 1 Credit SW4 SW5 SW6 (Bonus ships awarded.) Began with 2, 3, Began with 5 or 4 fighters fighters. ---------------------------------------------------------------- 1st SHIP 20000 1st SHIP 30000 ON ON OFF 2nd SHIP 60000 2nd SHIP 100000 AND EVERY 60000 AND EVERY 100000 ----------------------------------------------- 1st SHIP 20000 1st SHIP 30000 ON OFF ON 2nd SHIP 70000 2nd SHIP 120000 AND EVERY 70000 AND EVERY 120000 ----------------------------------------------- 1st SHIP 20000 1st SHIP 30000 ON OFF OFF 2nd SHIP 80000 2nd SHIP 150000 AND EVERY 80000 AND EVERY 150000 ----------------------------------------------- 1st SHIP 30000 1st SHIP 30000 OFF ON ON 2nd SHIP 100000 2nd SHIP 100000 AND EVERY 100000 ----------------------------------------------- 1st SHIP 30000 1st SHIP 30000 OFF ON OFF 2nd SHIP 120000 2nd SHIP 120000 AND EVERY 120000 ----------------------------------------------- 1st SHIP 20000 1st SHIP 30000 OFF OFF ON 2nd SHIP 60000 2nd SHIP 150000 ----------------------------------------------- 1st SHIP 30000 ONE SHIP 30000 OFF OFF OFF 2nd SHIP 80000 ONLY ----------------------------------------------- ON ON ON NO BONUS SHIPS GIVEN WITH THIS SETTING ---------------------------------------------------------------- SW7 SW8 (Number of fighters to start with) ---------------------------------------------------------------- ON ON 2 Space Fighters ON OFF 3 Space Fighters OFF ON 4 Space Fighters OFF OFF 5 Space Fighters SWB is used for setting the difficulty of Galaga. Switches SW4, SW7, and SW8 don't appear to do anything. (This differs slightly from switch bank 6J as specified by z_morganrw@ccsvax.sfasu.edu) : SW1 SW2 ------------------------------------------------- OFF OFF Rank "A" - Easiest level of play. ON ON Rank "B" OFF ON Rank "C" ON OFF Rank "D" - Hardest level of play. SW3 ------------------------------------------------- ON Some sort of test/debug mode, do not use OFF Normal operation SW5 (The "damn the phone's ringing" switch :-) ------------------------------------------------- ON Freeze game OFF Normal operation SW6 ------------------------------------------------- ON Automatic rack advance (cheat mode). OFF Normal operation ====================================================================================== ====================================================================================== Galaga 4 ======== (closest to corner of board) 1 - Red 2 - Blue 3 - Green 4 - Sync 5 - Video GND Main connector: PARTS SIDE | SOLDER SIDE ------------------------------------------------- GND | A | 1 | GND GND | B | 2 | GND +5V | C | 3 | +5V +5V | D | 4 | +5V +12V | E | 5 | +12V | F | 6 | Speaker | H | 7 | Reset | J | 8 | | K | 9 | | L | 10| Test | M | 11| Coin 1 | N | 12| Service 1P.Start | P | 13| 2P.Start 1P.Shoot | R | 14| 2P.Shoot 1P.Left | S | 15| 2P.Left 1P.Right | T | 16| 2P.Right | U | 17| Table Type GND | V | 18| +5V | W | 19| +5V +5V | X | 20| +5V GND | Y | 21| GND GND | Z | 22| GND --------------------------------------------------------------------------------------- Switch A Switch B Option: 1 2 3 4 5 6 7 8 Option: 1 2 3 4 5 6 7 8 --------------------------------------- -------------------------------------------- 1Coin/7Plays + + + Difficulty A + + 1Coin/6Plays + + - B + - 1Coin/3Plays + - + C - + 1Coin/2Plays + - - D - - 1Coin/1Play - + + 2Coins - + - Demo ON + 2Coins - - + Sound OFF - 2Coins - - - Scene Stop + Bonus at 20000 + + - Normal - and 60000 Bonus at 30000 + - + Stage ON + and 80000 Selection OFF - Bonus at 20000 + - - and 50000 Coin Switch A Bonus at 20000 - + + 1Coin /1Play + + and 60000 1Coin /2Plays + - Bonus at 30000 - + - 2Coins/1Play - + and 70000 2Coins/3Plays - - ? - - + ? - - - Player 1 + + 2 + - 3 - + 5 - - ===================================================================================== =====================================================================================