Laserdisc Game Tech Center

For Manuals, Schematics, ROM Images, Virtual Libraries, and much more,
choose from the list for each game's specific Tech Center.

Astron Belt
Attack of the Zolgear

Badlands
Bega's Battle

Casino Strip
Cliff Hanger
Cobra Command
COPS
Crime Patrol
Crime Patrol 2: Drug Wars
Cube Quest

Dragon's Lair
Dragon's Lair II: Time Warp

Esh's Aurunmilla

Fast Draw Showdown
Firefox
Freedom Fighter Galaxy Ranger
Gallagher's Gallery
Goal to Go
GP World

Inter Stellar Laser Fantasy

Laser Grand Prix
The Last Bounty Hunter

M.A.C.H. 3
Mad Dog McCree
Mad Dog II: The Lost Gold
Marbella Vice

NFL Football
Ninja Hayate

Platoon
Project Dragoon

Quarter Horse Road Blaster

Space Ace
Space Pirates
Star Blazers (Yamato)
Star Rider
Street Viper
Super Don Quix-ote

Thayer's Quest
Tierras Salvajes
Time Gal
Time Traveler
Top Gear

Us vs. Them

VisionQuest

Who Shot Johnny Rock?

Zorton Brothers

Laserdisc Player Guide - Pictures, documentation, and information on laserdisc players used in arcade games.
Laserdisc Player Conversion Products - The Hi-Tech, LaserAce, LaserCon, Merlin-8000, and Dexter products allow you to upgrade/replace your game's laserdisc player.
Dragon's Lair / Space Ace Custom LDP Conversion - Build a custom laserdisc player conversion for Dragon's Lair / Space Ace.
EuroDL - A custom laserdisc player conversion that you can build for your European Dragon's Lair or Space Ace.
Dragon's Lair II Disc Player Conversion - This ROM allows Leland's DL2 game to use any Sony LDP series player.
Cliff Hanger PR-8210 Conversion - Replace your PR-8210 laserdisc player with a LD-1100 for Cliff Hanger.
Star Rider PR-8210-A Conversion - How to convert a PR-8210 laserdisc player into a PR-8210-A for Star Rider.
PR-8210 vs. PR-8210-A - A quick look at the differences between the two LD players.
Firefox Philips 22VP931 Repair Guide - Everything you need to know to get your Firefox working again.
LD-V1000 Boot Switch - Manually issue a play command to your Pioneer LD-V1000.
LaserCom - An advanced computer interface for the Pioneer LD-V1000. [OFF-SITE]

Enhancement ROMs - The Dragon's Lair, Space Ace, and Dragon's Lair II Enhancement ROMs play the games as their stories were originally planned.
LaserCon Merlin - The Merlin MultiGame boards let you switch on-the-fly between Dragon's Lair, Space Ace, Dragon's Lair II, and Cliff Hanger in the same cabinet. [OFF-SITE]
LaserCon ALG MultiROM - A replacement RAM / ROM board that includes firmware for 8 different American Laser Games titles. [OFF-SITE]
Space Ace DIP Switch Remap - Matches the DIP switch positions & settings for Space Ace with those of Dragon's Lair, to alleviate changing switches when you change games.
Cliff Hanger Overrun fiX - Removes video overruns when scenes end, and also adds a new DIP switch setting for unlimited lives.
Thayer's Quest Uncensored ROM - Eliminate the restrictions on keyboard entry, and have Thayer's Quest say anything the player types.
Dragon's Lair II Disc Player Conversion - This ROM allows Leland's DL2 game to use any Sony LDP series player.
Euro Dragon's Lair / Space Ace Software Corner Hack - Use a Software Corner reprinted laserdisc in your European Dragon's Lair or Space Ace game.

ALG PAL Chip Workarounds - Play Who Shot Johnny Rock? and the original version of Space Pirates

with more commonly available PAL chips.
Star Rider PIF ROM update - This ROM in the Star Rider Tech Center can improve the reliability of original hardware that may be crashing due to age.
Esh's Aurunmilla Level 7 Bug Fix - This ROM in the Esh's Aurunmilla Tech Center corrects a game-crippling frame number typo.

LaserCon Arthur - A replacement main logic board for Dragon's Lair and Space Ace that includes all Merlin functionality. [OFF-SITE]
Dragon's Lair Rev. A PCB Modifications - See and apply all the changes that were made during the production of Dragon's Lair until the PCB design was finalized.
Dragon's Lair Rev. A PCB 68705 Bypass Mod - Update the clock signal on older Dragon's Lair / Space Ace PCBs.

Dragon's Lair PCB Conversion Between PR-7820 & LD-V1000 - Convert a Dragon's Lair / Space Ace board between the PR-7820 and LD-V1000 laserdisc players.
Dragon's Lair Score Display Flicker - Eliminate the flickering 'F' letters that may develop in a Dragon's Lair / Space Ace / Thayer's Quest score display.

Dragon's Lair Volume Control Wiring - Fix the factory error in the Dragon's Lair / Space Ace wiring harness for the volume control on the operator convenience panel.
Dragon's Lair Joystick Volume Control - Adjust the volume of the "joystick feedback sounds" in Dragon's Lair / Space Ace.
Dragon's Lair Monitor Swap - Replace your Dragon's Lair / Space Ace / Thayer's Quest RGB monitor with a TV tube.
Dragon's Lair Power Supply Adaptor - Replace the original power supply with a modern switching one for Dragon's Lair / Space Ace / Thayer's Quest.
Dragon's Lair / Space Ace Combo - Swap Dragon's Lair and Space Ace ROMs with the flip of a switch.
TQKey - Use a computer keyboard in place of the original Thayer's Quest keyboard.
ALG Audio Hack - Use your CRT TV speakers for American Laser Games audio.

Daphne - An awesome emulator with support for over 15 laserdisc games! [OFF-SITE]
Dragon's Lair II Emulator - A quick easy way to play Leland's Dragon's Lair II on your PC.
MAME - The popular emulator reports some success with a few laserdisc games. [OFF-SITE]

Dragon's Lair Initialization - Partial description of the initialization process of Dragon's Lair.
Dragon's Lair Engineering Mode - What happens when your Dragon's Lair / Space Ace is in engineering mode.
ALG RAM / ROM Info - Technical insight on the RAM / ROM board used by American Laser Games.

Message Board
Locations
Chat Room

The new items marked on
the left are detailed here.The updates marked on
the left are detailed here.

2021.09.17 - Added two pictures of CED videodisc caddies to the NFL Football Virtual Library.

2021.06.23 - Added new tech page to address a factory error in the Dragon's Lair / Space Ace audio wiring.

2021.05.06 - Added a manual (Italian) and a service notice to the Casino Strip Tech Center.

2021.04.15 - Added Fast Draw Showdown Operation Manual and Wiring Diagrams to the American Laser Games Tech Center.

2021.04.15 - Added picture of several marquees and a coin label sheet to the American Laser Games Virtual Library.

2021.03.20 - Reformatted and clarified text on the Dragon's Lair PCB Conversion Between PR-7820 & LD-V1000 page.

2021.03.16 - Added pinout corrections for the Cobra Command conversion kit manual for Dragon's Lair to the Cobra Command Tech Center.

2021.03.04 - Added new Space Pirates ROM 1.4b modified for R6/R5 PAL compatibility to the American Laser Games Tech Center.

2021.03.04 - Added ALG Manual v1.05 for all games to the American Laser Games Tech Center.

2021.03.04 - Added ALG Field Assembly Instructions for 33"/50" games to the American Laser Games Tech Center.

2021.01.03 - Updated the Badlands Tech Center with a report of an Astron Belt PCB conversion.

2020.12.27 - Added Crime Patrol ROM images (version 1.00) to the American Laser Games Tech Center.

2020.11.22 - Updated the CPU audio pinout and picture in the Esh's Aurunmilla Tech Center and Virtual Library.

2020.11.20 - Added a service manual, schematics, and diagrams to the Inter Stellar Laser Fantasy Tech Center.

Update Log

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