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DRAGON'S LAIR / SPACE ACE ENGINEERING MODE
Written by Jeff Kulczycki - 20 March 2000
INTRODUCTION
Engineering mode was designed to let the engineers play-test a scene without having to play through the whole game. This document will show you how to get into engineering mode and how to use it.
THEORY OF OPERATION
When the engineering mode is enabled, one of the DIP switch banks on the game's main PCB will act as the scene select according to the tables below, and the specified scene will play over and over continuously.
NOTE: All DIP switches discussed in this document must be switched while the game's power is turned off!
DRAGON'S LAIR ENGINEERING MODE
Dragon's Lair's engineering mode is activated by turning DIP switch A3 OFF. You can then use DIP switch bank B to select the scene to play. Again, you must set these switches before you power up the game. The game will start normally with the attract mode. Insert coins and press start. The game will then jump immediately to the selected scene. The only way to exit engineering mode is to shut the machine off and reset your DIP switches.
With the Dragon's Lair revision F and F2 EPROMs, you will have a slight problem using engineering mode. These ROM revisions have remapped DIP switch B3 to select which laserdisc player is being used. If you have this ROM version, you'll have to leave B3 set to wherever it's at.
Dragon's Lair scene selection, via DIP switch bank B:
B7 | B6 | B5 | B4 | B3 | B2 | B1 | B0 | Scene Name |
ON | ON | ON | ON | ON | ON | ON | OFF | Tentacles & Halberd |
ON | ON | ON | ON | ON | ON | OFF | ON | Mist Room (snakes) |
ON | ON | ON | ON | ON | ON | OFF | OFF | Ropes (fire pit) |
ON | ON | ON | ON | ON | OFF | ON | ON | Yellow Brick Road (pool of water / spider) |
ON | ON | ON | ON | ON | OFF | ON | OFF | Wizard's Chamber (Cauldron Wizard / slime) |
ON | ON | ON | ON | ON | OFF | OFF | ON | Spiral Staircase (Giddy Goons) |
ON | ON | ON | ON | ON | OFF | OFF | OFF | YMCA Room (flattening stairs) |
ON | ON | ON | ON | OFF | ON | ON | ON | Forge (Smithee) |
ON | ON | ON | ON | OFF | ON | ON | OFF | Socker Boppers (Grim Reaper) |
ON | ON | ON | OFF | ON | ON | ON | ON | Breathing Door (wind room) |
ON | ON | ON | OFF | ON | ON | ON | OFF | Bedroom (closing wall) |
ON | ON | ON | OFF | ON | ON | OFF | ON | Fire Room (lightning / bench over exit) |
ON | ON | ON | OFF | ON | ON | OFF | OFF | Flying Barding |
ON | ON | ON | OFF | ON | OFF | ON | ON | Chapel (Robot Knight / checkered floor) |
ON | ON | ON | OFF | ON | OFF | ON | OFF | Mausoleum (Crypt Creeps) |
ON | ON | ON | OFF | ON | OFF | OFF | ON | Catwalk (bats) |
ON | ON | ON | OFF | ON | OFF | OFF | OFF | Ropes (fire pit) (reversed) |
ON | ON | ON | OFF | OFF | ON | ON | ON | Yellow Brick Road (pool of water / spider) (reversed) |
ON | ON | ON | OFF | OFF | ON | ON | OFF | Giant Bat |
ON | ON | OFF | ON | ON | ON | ON | ON | Elevator Floor (9 levels available) |
ON | ON | OFF | ON | ON | ON | ON | OFF | Forge (Smithee) (reversed) |
ON | ON | OFF | ON | ON | ON | OFF | ON | Flying Barding (reversed) |
ON | ON | OFF | ON | ON | ON | OFF | OFF | Pot of Gold (Lizard King) |
ON | ON | OFF | ON | ON | OFF | ON | ON | Wizard's Kitchen ("Drink Me") |
ON | ON | OFF | ON | ON | OFF | ON | OFF | Mausoleum (Crypt Creeps) (reversed) |
ON | ON | OFF | ON | ON | OFF | OFF | ON | Socker Boppers (Grim Reaper) (reversed) |
ON | ON | OFF | ON | ON | OFF | OFF | OFF | Tilting Room |
ON | ON | OFF | ON | OFF | ON | ON | ON | Throne Room |
ON | ON | OFF | ON | OFF | ON | ON | OFF | Chapel (Robot Knight / checkered floor) (reversed) |
ON | ON | OFF | OFF | ON | ON | ON | ON | Elevator Floor (9 levels available) (reversed) |
ON | ON | OFF | OFF | ON | ON | ON | OFF | Pirates of the Caribbean (underground river) |
ON | ON | OFF | OFF | ON | ON | OFF | ON | Mudmen |
ON | ON | OFF | OFF | ON | ON | OFF | OFF | Knight & Light (Black Knight / horse) |
ON | ON | OFF | OFF | ON | OFF | ON | ON | Boulder Trench (colored balls) |
ON | ON | OFF | OFF | ON | OFF | ON | OFF | Three Caves (jagged door / geyser) |
ON | ON | OFF | OFF | ON | OFF | OFF | ON | Dragon's Lair |
ON | ON | OFF | OFF | OFF | ON | ON | ON | Elevator Floor (3 levels available) |
ON | ON | OFF | OFF | OFF | ON | ON | OFF | Vestibule (small crumbling room) |
SPACE ACE ENGINEERING MODE
Space Ace's engineering mode is activated by turning DIP switch B3 ON. You can then use DIP switch bank A to select the scene. Because of Space Ace's style of game play, the scene will not always start over at the beginning. You will not have the problem with the laserdisc player selection that you get with the Dragon's Lair revision F/F2 ROMs, because Space Ace uses DIP switch B0 for player selection.
Space Ace scene selection, via DIP switch bank A:
A7 | A6 | A5 | A4 | A3 | A2 | A1 | A0 | Scene Name |
ON | ON | ON | ON | ON | ON | ON | ON | Attract Mode |
ON | ON | ON | ON | ON | ON | ON | OFF | "There's Borf's Ship" |
ON | ON | ON | ON | ON | ON | OFF | ON | Flying Thru Grid Maze |
ON | ON | ON | ON | ON | ON | OFF | OFF | Flying Thru Grid Maze (reversed) |
ON | ON | ON | ON | ON | OFF | ON | ON | Space Station Level 1: Video Guards |
ON | ON | ON | ON | ON | OFF | ON | OFF | Space Station Level 1: Video Guards (reversed) |
ON | ON | ON | ON | ON | OFF | OFF | ON | Space Station Level 1: Security Spheres |
ON | ON | ON | ON | ON | OFF | OFF | OFF | Space Station Level 1: Security Spheres (reversed) |
ON | ON | ON | ON | OFF | ON | ON | ON | Space Station Level 2: Space Pups / Robots |
ON | ON | ON | ON | OFF | ON | ON | OFF | Space Station Level 2: Space Pups / Robots (reversed) |
ON | ON | ON | OFF | ON | ON | ON | ON | Space Station Level 2: Trash Masher |
ON | ON | ON | OFF | ON | ON | ON | OFF | Space Station Level 2: Trash Masher (reversed) |
ON | ON | ON | OFF | ON | ON | OFF | ON | Dogfight |
ON | ON | ON | OFF | ON | ON | OFF | OFF | Dogfight (reversed) |
ON | ON | ON | OFF | ON | OFF | ON | ON | Checkered Tunnel / Le Grins |
ON | ON | ON | OFF | ON | OFF | ON | OFF | Checkered Tunnel / Le Grins (reversed) |
ON | ON | ON | OFF | ON | OFF | OFF | ON | Shag's Jungle |
ON | ON | ON | OFF | ON | OFF | OFF | OFF | Shag's Jungle (reversed) |
ON | ON | ON | OFF | OFF | ON | ON | ON | Hexter |
ON | ON | ON | OFF | OFF | ON | ON | ON | Hexter (reversed) |
ON | ON | OFF | ON | ON | ON | ON | ON | Cycle Chase |
ON | ON | OFF | ON | ON | ON | ON | OFF | Cycle Chase (reversed) |
ON | ON | OFF | ON | ON | ON | OFF | ON | Maze of Madness / Water Tank |
ON | ON | OFF | ON | ON | ON | OFF | OFF | Maze of Madness / Water Tank (reversed) |
ON | ON | OFF | ON | ON | OFF | ON | ON | Final Battle with Borf |
ON | ON | OFF | ON | ON | OFF | ON | OFF | "Which Way?" (water) |
ON | ON | OFF | ON | ON | OFF | OFF | ON | "Which Way?" |
ON | ON | OFF | ON | ON | OFF | OFF | OFF | Flying after Borf's ship |
ON | ON | OFF | ON | OFF | ON | ON | ON | Flying after Borf's ship (reversed) |
ON | ON | OFF | ON | OFF | ON | ON | OFF | Run thru door to Security Sphere |
ON | ON | OFF | OFF | ON | ON | ON | ON | Run thru door to Security Sphere (reversed) |
ON | ON | OFF | OFF | ON | ON | ON | OFF | Water Tank |
ON | ON | OFF | OFF | ON | ON | OFF | ON | Water Tank (reversed) |
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