Midway Off Road Thunder Operation Manual

							Parts          7-35
Line Cord Installation
Bracket AC Plug Assembly A-23089 
						

							Parts          7-36
Coin Door Application Table
ELECTROMECHANICAL COIN DOOR ASSEMBLIES
Part Number
Country
09-72000-14
09-72000-15
09-72000-20
09-96011.1
09-96023-33
France„
Germany„
Italy„
Japan„
Spain„
UK„
USA, DBV Ready„
Transformer Application Table
POWER TRANSFORMER ASSEMBLIES
                        Part Number
Line Power5610-16282-00 5610-16283-00 5610-16284-00
120 VAC 60 HZ
„ 
230 VAC 50HZ„
100 VAC 50HZ
„ 
TYPICAL POWER TRANSFORMER ASSEMBLY 
						

							Troubleshooting          6-1



	
TM




TROUBLESHOOTING
NOTICE: 
The term VGM refers to the video game machine.
CAUTION: 
This VGM uses complex electronic components that are very sensitive to
static electricity. Observe the following precautions before handling VGM electronics.
Failure to do so may void your warranty and could damage electronic assemblies.
•
  Before servicing electronics, turn off AC power to the VGM. W ait for capacitors to discharge.
•
  Before touching or handling electronic assemblies, discharge static electricity on your body. To
discharge this static, begin by connecting the line cord to a grounded outlet. Don’t turn on the
VGM! Next, touch the safety ground stud of the power supply chassis.
•
  Store electronic assemblies in an anti-static area. Use anti-static bags to store or transport VGM
circuit boards. Transport the hard drive in its shipping container.
•
  Don’t remove or connect electronic assemblies when cabinet power is on. Otherwise, you’ll
damage electronic assemblies and void the VGM warranty.
•
  After you complete maintenance or service, replace ground wires, shields, safety covers, etc.
Install and tighten ground and mounting screws. 
						

							Troubleshooting          6-2
Coin Mechanism and Pricing Troubleshooting Table
SYMPTOM CAUSE REQUIRED ACTION
Improper settings at
Pricing Menu1.  Enter Menu System by pressing and holding
TEST MODE switch inside coin door. From
Diagnostics Menu, choose SW ITCH TEST. Use
tests to confirm operation of switches.
2.  From Adjustments Menu, choose PRICING
MENU. Verify that units and credits are set
correctly.• VGM (video game machine)
accepts currency or tokens,
but number of credits per
coin or bill is incorrect.
Faulty wiring1.  Check that cabinet wiring is correct for this VGM.
2.  Assure that coin meter and coin switches
connect properly to control input wires.
Improper currency1.  Unlock and open cash door. Empty cash box.
Inspect revenue for counterfeit currency.
2.  Check vault. Remove any items that block path
from mechanism.
Faulty coin
mechanism1.  Unlock and open coin door. Check each
mechanism for proper mounting.
2. Remove mechanism.
3.  Clear currency path.
4.  Reinstall mechanism and latch it.
• VGM won’t accept currency
or tokens.
• VGM won’t start.
•  Audio and video are present.
Tilted coin
mechanism or VGM1.  Verify that mechanism is level after doors close.
2.  Repair or replace coin door if it is bent or
damaged.
3.  If necessary, adjust cabinet leg levelers to keep
mechanisms vertical.
Burned-out bulb 1.  Burned-out bulbs may appear white or darkened.
Check continuity with DVM.
2.  Replace burned-out bulb with same type.•  Coin indicators don’t light
Open fuse circuit 1.  Check fuse continuity with DVM.
2.  If fuse is blown, replace fuse with same type.
3.  If fuse isn’t blown, check wiring.
CAUTION: 
Don’t remove or install any connector when power is turned on. Installation
under power will damage the circuit boards or hard disk drive and void the warranty.
Typical Coin Mechanism Mounting 
						

							Troubleshooting          6-3
VGM Startup Troubleshooting Table
SYMPTOM CAUSE REQUIRED ACTION
Power problem1.  Check that VGM power switch is on.2. Inspect computer to see if fans are turning. If
not: Is computer power supply connected to its
power cable? Is computer power supply turned
on?
3.  Plug VGM into AC power outlet. Verify presence
of AC line voltage.
Improper line voltage
switch settingTurn off VGM power. Unplug AC line cord. Check
line voltage switch. If necessary, set it to agree
with local AC line voltage. Retest VGM.
Open fuse1.  Turn off VGM power. Examine AC fuse at rear of
VGM, on AC cord plug plate.
2.  Replace faulty fuses with identically rated parts.
3.  Turn on VGM power. If fuse opens again, check
AC wiring harness and connectors.
Faulty wiring1.  Remove line cord. Test line cord, power plug,
and IEC connector for breaks or damage. Verify
continuity of each wire in cord. Install cord at
power chassis. Press connector firmly to seat it.
2.  Check computer cord in same manner.
3.  Assure that cabinet wiring harness connectors
fully seat in corresponding power supply and
board connectors.
4.  Inspect wiring for breaks or damage.
• VGM (video game machine)
doesn’t start.
•  VGM appears completely
non-functional.
• No audio
• No illumination
•  No video display
Arcade computer
problemTurn off power for one minute and turn VGM on
again. Power On Self-Test checks electronics.
Screen may report errors. If video circuits don’t
operate properly, computer produces series of
beeps. (See Error Message Troubleshooting
Table.)
Location of Power Supply 
						

							Troubleshooting          6-4
VGM Startup Troubleshooting Table, continued
SYMPTOM CAUSE REQUIRED ACTION
Power problem1.  Inspect circuit boards under low-light conditions.
LEDs glow if processor circuits receive voltage.
Fan should be turning. These indications prove
presence of DC from power supply. Still,
voltages or signals may not be normal.
Computer has no internal LEDs.
2.  Turn on VGM power. Using 20-volt DC setting on
digital voltmeter, measure DC voltages at power
connector pins. (Power supply voltage isn’t
adjustable.)
3.  Using 2-volt AC setting on digital voltmeter,
measure same DC voltages as above. Any
reading here indicates that supply voltages are
unstable and may contain ripple or noise.
Faulty wiringTurn off VGM power. Assure that wiring harness
connectors fully seat onto mating board
connectors. Verify that harness connects to
computer. Check other connectors in same way.
Improper jumper or
DIP switch settingsVerify that circuit board jumpers are set as
intended. Check DIP switch settings.
• VGM (video game machine)
appears non-functional.
•  Currency acceptor price
indicator is illuminated.
Faulty circuit boards
or arcade computer1.  Run power-up self-test sequence. Note errors or
failures during tests. Compare LEDs with LED
indicator status charts. Note discrepancies.
2.  Turn off computer. W ait for hard disk to stop
spinning. Leave VGM power on. Loosen
computer case thumbscrews and lift off cover.
Turn computer power on. Listen for beeping
sounds. Compare beeps with Error Message
Troubleshooting Table.
CAUTION: 
Don’t remove or install any connector while power is turned on. Doing so
will damage circuit boards or hard disk drive, and void warranty.
Front View of Coin Door  Interior View of Electronics 
						

							Troubleshooting          6-5
VGM Startup Troubleshooting Table, continued
SYMPTOM CAUSE REQUIRED ACTION
Faulty coin
mechanism1.  Unlock and open coin door. Check each
currency acceptor to assure proper mounting.
Verify that each release latch is closed and
locked. Does mechanism accept and reject
currency correctly? Test mechanism with good
and bad coins.
2.  Inspect to see if external acceptor indicators
(Pricing, Flashing Arrows, etc.) are lit.
3.  Verify that each acceptor operates properly by
placing it in working VGM. Replace bad parts.
Faulty switches1.  Enter Menu System by pressing and holding
TEST MODE switch inside coin door. From
Diagnostics Menu, choose SW ITCH AND LAMP
TESTS. Use tests to confirm operation of each
switch in VGM.
2.  Assure that no loose parts or wires are caught in
switch contacts.
3.  Check for continuity in each suspect switch
connection (Common to Normally Open or
Common to Normally Closed).
4.  Replace faulty switches (bent levers, broken
actuators, etc.).
• VGM (video game machine)
doesn’t start.
•  VGM accepts currency or
tokens.
•  Audio and video are present.
Faulty wiring1.  Assure that no wires are caught in hinges,
latches or switch contacts.
2.  Check wiring continuity from circuit board
connectors to acceptors.
Interior View of Coin Door and Cash Door 
						

							Troubleshooting          6-6
Audio Troubleshooting Table
SYMPTOM CAUSE REQUIRED ACTION
Improper volume
settingEnter Menu System by pressing and holding
TEST MODE switch. From Operator (Main)
Menu, choose VOLUME MENU. Check that
Attract Music is on (enabled). Verify that all
volume levels are set well above zero. If
necessary, change levels to make VGM audible.
Faulty wiringTurn off VGM power. Assure that wiring harness
connectors attach and fully seat onto mating
board connectors. Verify that harness connects
to computer. Also check audio connectors.
Faulty or obstructed
speakerRemove grilles and inspect speakers. Free
speaker cones, terminals, mounting screws and
magnets of loose parts or wires.
• No audio
•  Video is present
• VGM (video game machine)
appears to operate normally
Faulty Audio Board Verify proper operation of Audio Board by
placing it in working VGM.
Faulty wiring1.  Check that cabinet wiring is correct for this VGM.
2.  Verify that cabinet wiring provides separate
wires (not common return) for each speaker.
3.  Check connection of all cabinet ground wires.
Faulty Audio Board1.  Run power-up self-test sequence. Note errors
that VGM finds during tests.
2.  Verify that BB12 Audio Board operates by
placing it in working VGM.
3.  If problem persists: Check regulator U5;
capacitors C1, C2, C3, C14 and C30.
4.  Replace bad parts.
•  Constant low hum from all
speakers.
Faulty power supplyUsing 2 Volt AC setting on digital voltmeter,
measure voltages at speaker terminals. Any
reading indicates unstable supply that may
contain ripple or noise.
Faulty or improper
speaker1.  Turn off VGM power. Remove grilles and check
speakers. Assure that speakers are full range
(100 to 10,000 Hz response) and rated for at
least 20 watts. W oofers must be rated for at
least 40 watts.
2.  Verify proper speaker operation by connecting
speaker in question to working VGM.•  Audio is distorted, muffled or
has missing frequencies.
Faulty wiringMultiple-speaker installations: Check for
reversed wires at one speaker. W eak low
frequencies and thin or hollow sound quality is
symptom of incorrectly phased speakers. Sound
tests may not detect this condition, but you can
hear it during VGM operation.
Faulty speaker1.  From Diagnostics Menu, choose SOUND TEST.
Recheck speakers with audio signals provided
by test.
2.  Verify proper speaker operation by connecting
speaker in question to working VGM.
Faulty circuit boardRun power-up self-test sequence. Note errors
that VGM finds during tests. Compare circuit
board LEDs with LED indicator status charts.
Note discrepancies.
•  Dead sound channel
Faulty wiringVerify that cabinet wiring is correct. Assure that
all speakers connect to audio wires. Audio cable
must be fully seated in Computer Line Output
Jack. Check for broken or shorted wires. 
						

							Troubleshooting          6-7
Error Message Troubleshooting Table
Power-On Self-Test Beep Codes
Audio beeps only. Video may or may not be present. See notes.
MESSAGE MEANING REQUIRED ACTION
No beep No system power Check power supply and cables
1 continuous beep Partial system power Check power supply and cables
1 short beep Normal start; no errors Check other VGM components
2 short beeps Processor problem Check processor/fan module
3 short beeps Graphics initialization problem Check Video Board, cables
4 short beeps Processor problem Check processor/fan module
5 short beeps Insufficient system memory Check DIMM circuit modules
6 short beeps Peripheral problem Check other VGM components
Notes
•  The audio buzzer that generates 1 kHz beeps is in the computer, inside the VGM (video game machine). If
you have difficulty hearing beep codes, remove the rear cabinet door and computer cover.
•  Arcade Computer circuit boards resemble those in personal computers. Yet Midway engineers
reprogrammed the boards for application in this VGM. Power-On Self-Test codes are unique to the Arcade
Computer in this VGM.
•  W iring or peripheral circuit problems may not trigger on-screen error messages. You may discover difficulties
during Menu System diagnostic or calibration procedures.
•  For help with unresolved error messages, call your authorized distributor.
NOTICE: 
Don’t attempt to move computer circuit boards into alternate slots. Midway
assigned boards to specific slots. The custom operating system won’t recognize
improperly placed boards, even though they function normally.
Location of Beeper in Arcade Computer 
						

							Troubleshooting          6-8
Link Troubleshooting Table
SYMPTOM CAUSE REQUIRED ACTION
Faulty wiring1. Don’t extend linking cables that come with VGM.
2. Install required crossover between VGM
cabinets. Each coupler connects two cabinets
(one pair). Don’t use standard telephone type
couplers or wiring to link cabinets.
3.  Use only 10 Base-T, Ethernet-type, Category 5,
twisted-pair wiring for VGM data.• Can’t connect VGMs (video
game machines) together
Improper linking
hardwareUse required network hub for your local network.
Hub Link Kit permits up to four cabinet
connections. Cabinet array completion requires
basic kit brackets and spacers.
Improper settings1.  Record any error messages that occur during
self-test.
2. From Operator (Main) Menu, choose
Adjustments Menu. Then select Linked Play
Adjustments Menu. Assure that you’ve set
LINKED PLAY to ON.
3.  Be sure that each VGM has unique ID number.
Power problem If hub is in use, verify that power is applied. AC
adapter wires are thin and easily damaged.
• VGM doesn’t recognize
other players in linking
operation
•  VGM functions normally by
itself
Faulty wiring
(3 or more cabinets)1.  Inspect hub indicator lights. Each active port
should have illuminated indicator. If cable
connects, and that position has no lit indicator,
check for cable continuity from hub to cabinet.
2.  Assure that no loose wires catch in hinges,
doors, or under cabinet.
3.  Verify that linking cable connects to Network
Board at each VGM’s computer.
4.  Verify that each linking cable operates properly
by placing it in working VGM.
Improper hub switch
setting1.  Assure that switches on hub are set correctly
according to Hub Link Kit instructions.
(Networked cabinets don’t require couplers. Hub
has electronic crossover.)
2.  Inspect hub indicator lights for link activity. See
manufacturer’s literature for diagnostics.
W rong software
versionVerify that all linked cabinets use same software
version. Otherwise, linked cabinets won’t
recognize each other. Contact your distributor.
Faulty wiring
(2 cabinets)1.  Insert crossover connections between coupled
cabinets. Standard couplers appear identical to
devices supplied with cabinets, but don’t include
internal crossover.
2.  Verify that each linking crossover coupler
operates properly by placing it in working link
between two cabinets.
•  Some VGMs in group link
properly, while others don’t
Faulty wiring
(3 or more cabinets)1.  You used additional crossover connector and
cable to extend VGM or hub link connection.
Two crossovers cancel and cause same
problem as no link crossover.
2.  Connect cables directly to hub. Don’t use
crossover coupler and hub together in single
network.
3.  Separate communications wiring from other
wiring. W ires that must cross should cross at
right angles to limit noise pickup.