Midway Gauntlet Dark Legacy 39in Service Manual

							12Midway Games West Inc.
Chapter 2 Service
also requires quarter turn for removal. Do not force bulb or starter during reinstallation. Clean bulb to 
remove fingerprints and dust. Close housing and turn on AC power. Verify lamp lights before locking door.
To remove entire light fixture, open door and prop up housing. Disconnect fluorescent light assembly 
connector from power cable. Close and remove housing from cabinet, setting it on a workbench. Remove 
bulb. Remove screws that hold assembly to light cover, then lift out assembly. Ballast is in the base.
Instruction Overlay and Mini Marquee
Remove eight screws from speaker panel. Lift cover up and off to expose instruction overlay and mini 
marquee. Bulbs may be removed from strip light assembly with a fuse puller when necessary.
Coin Counter
Switch off AC power. Unlock and open coin and cash doors. Meter is in a lower corner of the door open-
ing. Record meter count before testing or replacing.
Disconnect wiring harnesses and ground wires to coin mechanisms. Reach through coin door and locate 
meter wires. Disconnect wires. Remove coin door mounting screws. Remove coin door and set on a work-
bench. Remove meter mounting screws from front. Ensure replacement unit has a diode across the termi-
nals. Remember to reconnect wiring harnesses and ground wire upon reinstallation.
Joysticks
Switch off AC power. Protect speaker grilles and open control panel. Mark and disconnect wiring harness 
at joystick. Remove fasteners and separate joystick from panel. Remove E-ring and stop spacer from end 
of joystick shaft, then grasp knob and extract stick from the assembly. Remove corner screws to free slide 
carriage and stop piece from joystick top. This exposes centering grommet. Do not cross-thread screws 
during reassembly.
Speakers
Switch off AC power. Two full range speakers are mounted behind grille at top of the control section. 
Grill and speakers come out the front. Remove screws and set grille aside. Always remove upper mounting 
screws first and replace them last to avoid damaging speaker.
Remove speakers from enclosure and disconnect wires. Refer to Cabinet Wiring Diagram for speaker 
wiring information. Do not use excess force when removing or tightening mounting screws threaded into 
plastic.
Monitor
Switch off AC power. Open front cabinet door. Move monitor remote board and wiring harness and place 
it in monitor assembly. (Monitor remote adjustment board is behind front door.) Disconnect fluorescent 
light assembly connector and all monitor cables. Remove front housing hinge screws and set housing 
aside. Remove monitor bezel and all barrier panels. Remove four flange nuts securing monitor mounting  
						

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Chapter 2 Service
brackets to mounting panel. Pull monitor carefully from cabinet and set in safe place. Clean CRT face 
before reinstalling barrier panels and monitor bezel.
INTERNAL COMPONENTS
Buttons
Open control panel. Mark and disconnect wiring harness at the switches. Bend large prong away from 
each switch just enough to slide switch off housing. Separate each switch from its button. Mark switches 
and harnesses with player numbers and lay them inside control panel box. Unscrew mounting nut from 
housing. Remove button housing through switch hole from front of control panel.
CAUTION. Video monitor is heavy, with most weight toward front of assembly. Firmly support mon-
itor when you remove it from cabinet.
WARNING. Monitor does not require isolation from AC line voltage in normal operation. However, 
when operating outside the cabinet or servicing the monitor on a test bench, you must isolate monitor 
from line voltage with an isolation transformer 
						

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Chapter 2 Service
CPU Board Assembly
Switch off AC power. Open front door. Remove groundplane cover to expose Electronics Assembly. Note 
orientation of JAMMA connector and other cables. Extract harness and hard disk drive ribbon cable from 
board connectors. Remove ground plane mounting screws. Slide entire electronics assembly out of cabinet 
and set in static-free place. Disconnect VGA connector. Remove mounting screws from circuit boards. 
Carefully remove Sound I/O Board, pulling gently to disconnect PCI edge connector from CPU Board. Set 
Sound I/O board in static-free place. Carefully remove CPU Board, pulling gently to disconnect from 
Video Card. Use anti-static bags and protective containers from new parts to store board, if not reinstalled.
REAR VIEW OF CABINET
Sound I/O Assembly
Switch off AC power. Open front door. If used, remove metal cover top to expose Electronics Assembly. 
Carefully note orientation of JAMMA connector and other cables. Extract harness and hard disk drive rib-
bon cable from board connectors. Remove groundplane mounting screws. Slide entire electronics assem-
bly from cabinet and set in a static-free place. Remove mounting screws from circuit board. Carefully 
remove Sound I/O Board, pulling gently to disconnect PCI edge connector from CPU Board. Use anti-
static bags and protective containers from new parts to store board if not reinstalled. 
						

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Chapter 2 Service
Hard Disk Drive
Switch off AC power. Unlock and open front cabinet door until it rests on chains. Remove metal cover 
from electronics assembly. Disconnect power cable from hard disk drive. Unplug ribbon cable from hard 
drive and leave attached to CPU board. Remove screws and lift drive assembly from cabinet. Do not stack 
or drop drives. Store drives in anti-static bags or approved shipping containers.
Video Card
Switch off AC power. Open front door. If used, remove metal cover top to expose Electronics Assembly. 
Disconnect VGA connector. Remove screws holding Video Card to groundplane. Carefully slide Video 
Card away from CPU Board, disconnecting PCI edge connector. Use anti-static bags and protective con-
tainers from new parts to store board if not reinstalled.
Memory
ROM (Read Only Memory) circuits contain computer operating instructions. Switch off AC power. Care-
fully note position, then remove using chip extraction tool.
To reinstall memory circuits, orient chip over its socket and press firmly to seat pins. Do not force.
Power Supply
Switch off AC power and disconnect line cord. Unlock and open front door. Unplug IEC connector from 
top of supply and wiring harnesses from back. Disconnect DC. power cable from hard disk drive. Remove 
two rear screws from supply, then slide from cabinet. Verify line voltage switch setting before reinstalling 
power supply.
Battery
Switch off AC power. Unlock and remove rear door. Remove perforated metal cover. Battery is mounted 
on top of integrated circuit at Sound I/O Board Assembly location U28. Use chip extraction tool to grasp 
battery edges and pull up firmly to remove device. Set aside with pins facing up. When installing new bat-
tery, align key with slot in integrated circuit.
CAUTION. Hard disk drives are fragile. Never move cabinet while AC power is on. Never stack or 
drop hard disk drives. Store unused hard disk drives in anti-static bags.
CAUTION. Discharge any static electricity built up in your body by touching power supply chassis. 
Do this before touching or handling electronic assemblies.
NOTE. To avoid explosion, replacement batteries must match original in size, voltage rating, and 
composition. These batteries are designed for very long life. Do not attempt to recharge. Avoid direct 
shorts across terminals or from terminals to ground. Remove from their holders and store in a safe 
place until repairs are complete. Dispose of used batteries according to manufacturers instructions 
						

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Chapter 2 Service
NOTES
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							CHAPTER
Gauntlet: Dark Legacy17
System
NOTICE: 
Information in this manual may change without notice. Midway Games West Inc. reserves 
the right to make improvements in equipment function, design, or components as progress in engineer-
ing or manufacturing methods may warrant. 
						

							18Midway Games West Inc.
Chapter 3 System
STARTING UP
Each time the game is first turned on or power is restored, it begins executing code out of the boot ROM. 
These self-diagnostic tests automatically verify and report condition of the hardware and the disk drive. 
The screen is blank during these tests. If any of the individual tests fails, then an error message will be dis-
played for each test. The message will be displayed for 30 seconds or until any button is pressed.
• If no buttons are pressed, the system will quickly complete all tests then load and run the game.
 Press and hold the TEST button inside the coin door to skip the boot ROM tests and activate the Menu System.
Once all Power-up tests have been passed, the game goes into Attract Mode. Scenes and sounds from a 
typical game are alternated with previous high scores in an endless pattern until game play starts.
Insert currency to start game. Play begins after a mission is chosen. The game progresses until time runs 
out. If no more play is required, the game automatically returns to the attract mode.
GAME RULES 
Play instructions are on information panel between speakers. Up to four players at a time can explore a 
world, facing hordes of monsters, searching for treasure, avoiding traps, finding and using magic, and 
adventuring their way to the exits.
Players choose from eight characters (and, later, eight alternate characters) to face the hordes of monsters 
that have overrun the land of Gauntlet. With more than 100 unique monsters and 10 intimidating boss char-
acters, players have their hands full, defeating each of the eight world bosses and collecting keys before 
meeting the demon Skorne. Following Skorne’s defeat, players must defeat him yet again in an underworld 
level, after which they face the evil overlord Garm. Numerous power-up enhancements are scattered 
throughout the land to help players get to the finish.
Players can save their character with player IDs. One password saves all eight different characters. Dur-
ing game variable selection, players simply enter their initials and their own 3-letter player ID that they 
choose. The characters, with their experience levels and current ratings for strength, speed, toughness, and 
magic are automatically saved along with any Rune Stones players find.
To access the alternate characters, players first build characters to level 10. Depending upon which char-
acter they have played, they then can choose to play as the Minotaur (Warrior), Falconess (Valkyrie), 
Jackal (Wizard), Tigress (Archer), Hyena (Jester), Ogre (Dwarf), Medussa (Sorceress), and Unicorn 
(Knight).
To defeat Garm, players must find all 13 Rune Stones and defeat Skorne twice. Three Stones are hidden 
in each world. Upon finding a Stone, a character is saved permanently with a password.
There are over 35 unique special weapons found throughout the game that will help players in their quest. 
These power-ups are found in chests and barrels, in nooks and crannies, and even in plain view and can be 
bought with gold in the Shop. 
						

							Gauntlet: Dark Legacy19
Chapter 3 System
INDIVIDUAL AND MULTIPLE PLAY
Insert currency to start game. Select a joystick/button combination and press START. Select a password, 
character, and journey. In multi-player games the first to select a journey determines everyone’s path. On-
screen life counters decrease as characters are wounded until they reach zero, at which point the player 
must deposit more coins to continue. You can continue playing after others drop out. When coins are 
inserted, the character joins in the middle of the action.
PLAYER CONTROLS     
START buttons let players begin or continue play and also select items from the service menu.
FIGHT/MAGIC/TURBO Buttons attach enemies. Players access special turbo movies by pressing 
TURBO and FIGHT at the same time when their fight bar has been charged up.
Magic is used by pressing TURBO + MAGIC and FIGHT + MAGIC during game play.
Between levels, players redeem accumulated gold for valuable power-ups and things that will enhance 
their characters like strength, toughness, speed, and magic.
JOYSTICKS advance a character along a journey and select items from service menu.
PLAYER CONTROL LOCATIONS 
						

							20Midway Games West Inc.
Chapter 3 System
OPERATOR CONTROLS
Operators have lock-and-key access to the menu system for statistics, adjustments, and testing to prevent 
tampering. On-screen messages guide the operator through menu options.
Cabinet Switches
The Power Switch (located on the power supply at the rear of the cabinet) turns off the game during ser-
vice. It does not reset the game variables.
Monitor Remote Adjustments
The Monitor Remote Adjustment Board (located just behind the coin door) sets the video display for opti-
mum viewing.
Control Switches
Volume Down and Volume Up Buttons (mounted on a bracket behind the coin door) increase or decrease 
game sound levels.
NOTE Attract Mode volume is set as a percentage of Game Mode volume. When volume up/down but-
tons are pressed during Attract mode the volume is temporary set to game volume.
For greater profits, adjust volume levels to a loud setting to draw attention to this game.
Test Mode Button The Test Mode push-button switch enters the menu system. Press the Test Mode button 
briefly to run automatic tests. To make changes, press and hold Test until the system menu is displayed.
Service Credit Button: this button allots credits without changing the games bookkeeping total.
These buttons may also be used instead of the control panel buttons and joystick when operating the 
menu system.
OPERATOR CONTROLS
CREDIT DOWN UP
MODE
TEST SWITCH BRACKET
SERVICE VOL. VOL. TEST 
						

							Gauntlet: Dark Legacy21
Chapter 3 System
MENU SYSTEM
SYSTEM OVERVIEW
Game variables and diagnostics are presented in a series of on-screen menus. The Main Menu allows you 
to view information, change or verify equipment operation. Submenus display further choices, after which 
more data appears or tests run. Use both operator and player controls to navigate menus and start or stop 
routines.
SCREEN LAYOUT
The color bar at the top center of each screen displays the current menu title. The center of the screen 
holds data (menu items, video signals, statistics, reports, etc.) The bottom of the screen contains messages 
(control functions, revision levels, etc.).
ORGANIZATION
Main Menu screen items are either options or tests. Submenu screen items offer choices within a cate-
gory. A Menu may have zero, one, or several Submenus. You can always return to the previous menu, and 
often advance to the next menu. Detail Menu screen items contain specific information. You interact with 
the system to get results or to make changes.
Use the indicated control to highlight an item. You can only select one highlighted at a time. To return to 
game play, select EXIT TO GAME, then press the indicated button.
SELECT TEST
DATE           TIME
ADJUST VOLUME
STATISTICS
GAME OPTIONS
COIN OPTIONS
DIP SWITCHES
CONTROLS TEST
SOUND TESTS
MONITOR TESTS
DISK TESTS
SET RTC
EXIT TO GAME
To select test, Use Joystick.
To run test, Press right P1 START or TEST
EPROM: (Day Date Year) (Hours: Minutes: Seconds)
GUTS: (Day Date Year) (Hours: Minutes: Seconds)
MAIN: (Day Date Year) (Hours: Minutes: Seconds)
SERIAL NO:
TYPICAL SELECT TEST MENU SCREEN