Figure 4a Self test display

If a bad ROM or RAM chip is found by the games internal check system during the Self-Test, the game indicates this to you by showing the location code of the bad chip(s) in place of the letters OK RAM located on Video PC board at position 1K is bad. RAM located on Video PC board at position 1K is bad. RAM located on Video PC board at position 1K is bad. RAM located on Video PC board at position 1K is bad. RAM located on Video PC board at position 3E is bad. RAM located on Video PC board at...

Eliminating The Rapid Automatic Fire Feature

If you do not desire the RAPID AUTOMATIC FIRE FEATURE on your game, it can be simply and easily eliminated. See the following procedure. PRESS THE 1 PLAYER START BUTTON 2, 3, 4, OR 5 FIGHTERS SW 1 SW 2 SW 3 SW 4 SW 5 SW 6 SW 7 SW 8 PRESS THE 2 PLAYER START BUTTON 2, 3, 4, OR 5 FIGHTERS EACH PRESS THE 1 PLAYER START BUTTON 2, 3, 4, OR 5 FIGHTERS WITH 5, 7, 9, OR 11 FIGHTERS PRESS THE 2 PLAYER START BUTTON DIFFICULTY LEVEL SETTINGS A IS THE EASIEST AND D IS THE MOST DIFFICULT RANK A - EASIEST...

Figure 12 Changing the plastic coin acceptor for American or Canadian Quarters

GALAGA CONTROL ASSEMBLY ALL VERSIONS GALAGA CONTROL ASSEMBLY ALL VERSIONS GALAGA CONTROL ASSEMBLY ALL VERSIONS MOLDED 1-3 8 DIA. BALL amp SHAFT ASSY. TOP PLATE MAIN CONTROL BR KT. ASSY. RUBBER BUMPER 90 DUROMETER 2 REQ'D. 6-32 x 5 16 SLT. PAN HD. M.S. 4 REQ'D. 8-32 x 1 2 RND. CARRIAGE BOLT 4 REQ'D. 5-40 x 5 8 SLT. PAN HD. M.S. 4 REQ'D. 6-32 x 5 16 PHIL. TRS. HD. SCR. 3 REQ'D. DOUBLE ENTRY COIN DOOR W DRESS PLATE 8 x 1 4 UNSLOT. HEX HD. SCREW 4 REQ'D. 6-32 x 1 4 CARRIAGE BOLT 4 REQ'D. COIN ENTRY...

Coin Door Maintenance

Periodically, the metal coin acceptor mechanism s must be removed from the coin door and cleaned. 1. Make sure the power to the game is off. 2. Unlock and open the coin door. 3. Remove the coin acceptor mechanism. Push down on the two spring loaded latches. While holding the latches down, pull the top of the coin acceptor mechanism toward you. Release the latches and lift out the coin acceptor mechanism. 4. Clean the magnet of all foreign particles See Figure 10. This may be accomplished by...