Dragon's Lair - Owners Manual (USA / Cinematronics) (28 pages)
Dragon's Lair - DL/SA Combo Owners Manual (USA / Cinematronics) (37 pages)
Dragon's Lair - Space Ace Conversion Manual (USA / Cinematronics) (9 pages)
Dragon's Lair - Owners Manual (Europe / Atari) (Preliminary rev. 3) (17 pages)
Dragon's Lair - Owners Manual (Europe / Atari) (Preliminary rev. 7) (17 pages)
Dragon's Lair - Owners Manual (Europe / Atari) (Final release rev. 1) (76 pages)
Dragon's Lair - Owners Manual (Italy / Sidam) (11 pages)

Dragon's Lair - Schematics (USA / Cinematronics) (26 pages)
Dragon's Lair - Schematics (Europe / Atari) - (32 pages)
Dragon's Lair - Electrohome NTSC Specifications and Pinouts (USA / Cinematronics)
Dragon's Lair - Wells Gardner NTSC Pinouts (USA / Cinematronics)
Dragon's Lair - Control Panel Pinout (USA / Cinematronics)
Dragon's Lair - Coin Door Pinout (USA / Cinematronics)

Dragon's Lair - DIP Switch Settings (USA / Cinematronics) (for rev. A, B, C, & D, and Beta 1 & 2 EPROMs)
Dragon's Lair - DIP Switch Settings (USA / Cinematronics) (for rev. E, F, F2, and Enhancement 1.1 EPROMs)
Dragon's Lair - DIP Switch Settings (Enhancement 2.x for USA / Cinematronics)
Dragon's Lair - DIP Switch Settings (DL/SA Combo ROM for USA / Cinematronics)

Games converted with a Merlin MultiROM board must follow Merlin's DIP switch charts, which also vary between the firmware revisions for each Merlin model.
Please find the chart for your matching firmware for your matching Merlin model at the LaserCon site.

Dragon's Lair - ROM Images (USA / Cinematronics) (rev. A)*
Dragon's Lair - ROM Images (USA / Cinematronics) (rev. B)*
Dragon's Lair - ROM Images (USA / Cinematronics) (rev. C)*
Dragon's Lair - ROM Images (USA / Cinematronics) (rev. D)*
Dragon's Lair - ROM Images (USA / Cinematronics) (rev. E)*
Dragon's Lair - ROM Images (USA / Cinematronics) (rev. F)*
Dragon's Lair - ROM Images (USA / Cinematronics) (rev. F2)*
Dragon's Lair - ROM Images (USA / Cinematronics) (Beta 1)**
Dragon's Lair - ROM Images (USA / Cinematronics) (Beta 2)**
Dragon's Lair - ROM Images (Europe / Atari)
Dragon's Lair - ROM Images (Europe / Atari) (alternate)
Dragon's Lair - ROM Images (Italy / Sidam)
DL/SA Combo ROM - (for USA / Cinematronics) - Made in 2002, this ROM holds both Dragon's Lair & Space Ace on the same set of chips.
Dragon's Lair Enhancement ROM - (for USA / Cinematronics) - Made in 1999-2005, these ROMs make use of the laserdisc's full potential.

Diagnostics ROM Package - (for USA / Cinematronics) - Made in 2018, this ROM aids with PCB troubleshooting - also contains the 1983 Cinematronics diagnostics archive.

* Revision A, B, and C EPROMs use the Pioneer PR-7820 only.  Revision D EPROMs use the Pioneer LD-V1000 only.  Revisions E, F, and F2 EPROMs use either player.  Revisions A, B, C, and D are a five chip set.  Revisions E, F, and F2 are a four chip set.

** Beta 1 and Beta 2 are a five chip set for use with a rev. A PCB and use the Pioneer PR-7820 only.
Beta 1 came from Dragon's Lair cabinet serial #1.  Beta 2 (previously named rev. X) was renamed because it was noted that it plays the same as rev. A, B, & C, but the code is different from all other ROM revisions.

Dragon's Lair Virtual Library - Images and information of the major components



Compatible Laserdisc Players - Pioneer PR-7820 (USA / Cinematronics), Pioneer LD-V1000 (USA / Cinematronics), Philips 22VP932 (Europe / Atari) and (Italy / Sidam)

Pioneer PR-7820 - Service Manual (168 pages)
Pioneer PR-7820 - General Adjustment Manual (20 pages)
Pioneer PR-7820 - Programming Reference Guide (30 pages)
Pioneer PR-7820 - Programming Users Guide (13 pages)
Pioneer PR-7820 - DVA System Manual (68 pages)
Pioneer PR-7820 to LD-V1000 - Cinematronics Conversion Instructions (8 pages)
Pioneer LD-V1000 - Operating Instructions (7 pages)
Pioneer LD-V1000 - Interface Guide (24 pages)
Pioneer LD-V1000 - Service Manual (81 pages)
Pioneer LD-V1000 - Schematics (27 pages)
Pioneer LD-V1000 - Cleaning the Optics (1 page)
Pioneer LD-V1000 - Changing the Laser Tube (3 pages)
Philips 22VP932 - Service Manual (95 pages) - (Italy / Sidam) & (Europe / Atari)

Standard LD-V1000 firmware required - The LD-V1000 players that were used in the game Badlands contain firmware that was modified by Konami.  The EPROM in these players must be restored to Pioneer's original firmware to work in Dragon's Lair.
Download the standard Pioneer LD-V1000 EPROM image.

Conversion Cards - None of the original laserdisc player models are natively compatible with any other model, making direct substitution impossible.  Several products have been developed over the years to allow replacement/upgrade of the laserdisc player.

Dexter is the newest product.  Unlike the other products below which convert to a newer laserdisc player model, no player or disc is needed with Dexter.  The Dexter board is a drop-in replacement which poses as a laserdisc player and plays the video for the game digitally, from a custom file format.  Dexter accepts the original commands from the PCB through the original interface cable.  Dexter has been going in and out of production multiple times, per demand, via pre-order process only.

LaserCon is a laserdisc player conversion card that allows the PR-7820, LD-V1000, and 22VP932 laserdisc players to be replaced with newer supported Pioneer players.  The original LaserCon is no longer in production.

Also from LaserCon, Merlin-8000 is a MultiROM board that performs laserdisc player model conversion at the source, by altering the communication protocols within the Dragon's Lair ROM, as opposed to intercepting and then converting the original signal outputs, which costs processing time.  Multiple Pioneer models are supported.

The Hi-Tech conversion card allows the original Pioneer laserdisc players to be replaced with newer Sony laserdisc player models.

The LaserAce conversion card allows the game to use a variety of different Pioneer and Sony laserdisc players.  LaserAce is no longer in production.

PC Conversion - This do-it-yourself document instructs how to install a desktop PC, and the accompanying software download, into your game cabinet to convert it from the Pioneer LD-V1000 to a Sony laserdisc player.



Diagnostics ROM Package - To aid with PCB troubleshooting, Shaun Wood offers an improved Diagnostics ROM Redo, which also contains the archive of the original, flawed Cinematronics diagnostics package.

Merlin MultiROM - Merlin is a direct replacement for the original EPROM board used in Dragon's Lair and Space Ace.  It includes Dragon's Lair rev. F2, Space Ace rev. A3, DLE, SAE, and optionally, DL2E.  Merlin allows ROMs to be swapped by using the joystick and button.  For more information, check the LaserCon site.

Board Revisions - There are two different board revisions (revision A and revision C).  Revision A PCBs have a serial number below 6,000, and revision C PCBs have a serial number above 6,000.  The revision C PCB arrived when the switch was made from revision D EPROMs (five chip set) to revision E EPROMs (four chip set).  This is also where the switch from the PR-7820 to the LD-V1000 laserdisc player started.  The older rev. A PCB can be modified to use the LD-V1000, and the newer rev. C PCB can be modified to use the PR-7820.  For instructions on this and a detailed look at the way both of these laserdisc players communicate with the main circuit board, see Jeff Kulczycki's Logic Board Conversion.

Sometimes when the EPROMs were updated from a five chip set to a four chip set, the 5th chip, (now unneeded) was left in, making it harder later on to narrow down what revision is installed.  If your EPROMs are unlabeled, one way to test the revision is by changing DIP switches.  Revisions E, F & F2 can't do 4 coins per credit, so that setting makes a good test.

Changes in EPROM rev. E, F, & F2 - The switch for joystick feedback sound (B3) is discontinued and is now used to select the model of disc player.  If you are using a LD-V1000 player and set this switch in the PR-7820 position, the LD-V1000 will play the disc from beginning to end after power-up, and the game will not function.  If you are using a PR-7820 player and set this switch in the LD-V1000 position, the game will not reach its second beep after power-up, and the screen will remain blank.  (Note that along with the proper setting of switch B3, the correct main circuit board appropriate for the disc player must also be installed for the game to work.)

The option for 4 coins per credit is discontinued, and this switch (A1) is now used for difficulty setting selection.  The hard difficulty level can be upgraded to very hard with this switch.  Very hard difficulty is characterized by five specific scenes that have been reprogrammed so that they require extremely critical (and occasionally abnormal) timing during gameplay.  Complete details are in the Dragon's Lair Walkthru.  Aside from these specific, critical scenes, the remaining scenes of the game will stay at the normal hard difficulty.

A setting of 2 coins per credit is not required for pay-as-you-go to function.  In pay-as-you-go mode, the price to continue the game is the same as the price per credit, either 2 or 3 coins.  Note however, that if the game is set for pay-as-you-go at 3 coins per credit, the screen graphics will incorrectly ask for only 2 coins, both during the attract mode to start the game and also at the interruption points.

In pay-as-you go mode, extra lives may be awarded after interruption points only if the game is set to begin with 3 lives.

The only difference between rev. F and F2 is a small change in chips U1 & U4 to correct a bug with the second move of the final scene.  With rev. F, making no move for the second move of the last scene will lock out the controls and throw the game into a loop which will continue playing the laserdisc until the dragon's body hits the ground, at which point the game will detect the malfunction and reset itself to the attract mode.

European Versions - Dragon's Lair was licensed to Atari for production and manufacturing in Europe.  The cabinet is very similar to the Cinematronics release, but the hardware, including the laserdisc player, is totally different.  Atari sub-licensed Dragon's Lair to Sidam for production and manufacturing in Italy.  Most of the hardware for the Sidam version is the same as the Atari version, but the cabinet design is completely different.  Both the Atari and Sidam versions of Dragon's Lair use a video overlay for the score and lives rather than the score display PCB that is used in the Cinematronics version.  Click on the following links to see screen shots of the video overlay.  Image 01 | Image 02

Monitor Swap - If the monitor in your Dragon's Lair, Space Ace, or Thayer's Quest is not up to your liking, you can replace it with a 19" TV.  The Monitor to TV Swap page will show you everything you need to know.

68705 Bypass Mod - An update for older rev. A Dragon's Lair/Space Ace PCBs.  See the 68705 Bypass Modification page for more information.

Volume Control Hack - Now you can adjust the volume of the joystick feedback sound in Dragon's Lair or Space Ace if it is too loud or soft for your environment.  Check out Shaun Wood's Dragon's Lair Volume Control Hack.

Interchangeability - Space Ace can be played in a Dragon's Lair cabinet simply by changing the laserdisc and the EPROMS (and also ideally with the installation of the 3 skill level selection buttons for "Cadet", "Captain" & "Space Ace").

Engineering Mode - Engineering mode was designed to let the engineers play-test a scene without having to play through the whole game.  To learn more about this, see Jeff Kulczycki's info on the Engineering Mode for Dragon's Lair.

Initialization - Ever wonder what all those characters are in the score display of Dragon's Lair while the game boots up?  Check out Jeff Kulczycki's Dragon's Lair Initialization page.

LD-V1000 Boot Switch - A simple inexpensive way to build a switch that issues a play command to the LD-V1000 or LD-V1001.  See the LD-V1000 Boot Switch page.

(USA, 1983)
Atari (Europe, 1984)
Sidam (Italy, 1984)
Leisure and Allied Industries (Australia, 1984)

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