Midway Skins Game Conversion Kit Operations Service Manual

							Troubleshooting - 4 Midway Games West Inc.4.  Using 2-volt AC setting on a digital voltmeter,
measure voltages at the speaker terminals. Any
reading here indicates that supply voltages are
unstable and may contain ripple or noise.
5.  Place speaker in working game to verify operation.
•
 Audio monauralPoor connection
Verify wiring against Cabinet W iring Diagram. Check
for shorted wires.
Controls Problems
Symptom Problem Suggested Solution
Joystick is out of
calibrationFrom Self-Test Menu, choose CONTROLS TEST.
Follow screen instructions to recalibrate joystick.
Faulty wiring
1.  Ensure wiring connectors are firmly seated in
control panel and no wires are broken or pinched.
2.  Repair or replace damaged cables. Reposition
wires as necessary to avoid cinching.
Poorly seated
potentiometer1.  Inspect joystick assembly. A potentiometer may not
be seated snugly.
2.  Remove a spring clip to reveal potentiometer.
3.  Try rotating potentiometer. If snug, it will not turn. If
it turns, push it inward while turning until you
correctly realign it and it seats tightly.
4.  Replace clip and inspect other potentiometer.
Bad potentiometer
5.  Turn AC power on. Check voltage at each
potentiometer. Put voltmeter leads on center tap
and ground. Leave joystick in default position.
Meter should read about +1.5V.
6.  Use analog or bar graph digital voltmeter for this
test: Put voltmeter leads on wiper and ground.
Move joystick through its range. Check for smooth,
linear transition between .5V and 1.5V. If meter
jumps at any point, potentiometer is bad.
7.  Replace a potentiometer that fails either test.
Bad inline power
fuse1.  Check voltages to CPU Board Assembly.
2.  If +5VDC is absent, replace inline fuse on power
cable. Use identical type fuse and retest voltages.
•
 Joystick non-
functional or
functions erratically
Faulty Pot Amp
chip1.  Test CPU Board Assembly in working machine.
2.  If joystick is still bad, repair or replace.
•
 Joystick slips,
seems loose. Poor
response.Nylon spacer worn
by rotating bracket1.  Remove joystick assembly, turn upside down, and
check whether there is too much play in brackets
when stick moves.
2.  Invert nylon spacer 180 degrees and replace.
3.  If already inverted, replace with new spacer. 
						

							Skins GameTroubleshooting - 5 Loose
potentiometer
captivating bracketEnsure pot captivating bracket is flush to flat of pot
shaft and retaining screw is secure.
•
 Joystick non-
functionalFaulty fuse
Replace broken fuse with identical type.
•
 Button non-
functional or
functions erraticallyPoor connection
Check connection and tighten.
Faulty button
1.  Place button in known working machine.
2.  Replace faulty button with identical type.
•
  Startup button bulb
non-functionalFaulty bulb
1.  Remove bulb and inspect filament.
2.  Replace faulty bulb with identical type.
•
 Keypad non-
functional or
functions erraticallyPoor connection
1.  Check that connections are tight.
2.  Compare to W iring Diagram to ensure accurate
connections.
Faulty keypad
1.  Place keypad in known good machine.
2.  Replace faulty keypad with identical type.
Coin Mechanism Problems
Symptom Problem Suggested Solution
Improper software
settings1.  Press TEST MODE pushbutton.
2.  Access CONTROLS TEST. Confirm operation of
each coin or bill mechanism.
3. Access COIN OPTIONS. Verify that each
mechanism’s pricing and setup options are set
correctly.•
  Currency or tokens
are accepted
•
  Number of credits
per coin or bill is
incorrect.
Faulty wiring
1.  Check that cabinet wiring is correct.
2.  Check that coin meter and coin switches connect
properly to control input wires from JAMMA
connector and CPU Board wiring.
3.  Ensure coin meter and coin switches connect
properly to control input wires.
•
  Currency or tokens
are accepted.
•
 Startup fails.
•
  Audio and video
functionalImproper settings at
Menu System1.  Press TEST MODE pushbutton.
2.  Access COIN OPTIONS. Confirm pricing and setup
of each mechanism. 
						

							Troubleshooting - 6 Midway Games West Inc.
Bill Validator Problems
Symptom Problem Suggested Solution
•
  Bill validator does
not function after
field installation.
•
 Coin mechanisms
functionalImproper software
settings1.  Press TEST MODE to enter Menu System. Choose
COIN OPTIONS. Confirm pricing and setup.
2.  If necessary, adjust pricing and setup.
3. Check validator switch settings against
manufacturer’s instruction sheet.
Miscellaneous
Obstructed fan
1.  Check air flow at bottom and rear of cabinet.
2. Clear obstructions.
3.  Move cabinet away from sources of heat.
4.  Turn AC power off. Remove dust from vent holes
with high-power vacuum cleaner.
Faulty wiring
Repair or replace fan wiring and connectors.
•
 Game functional
•
 Cabinet becomes
warm after several
hours of use.
Faulty fan
Check operation of all fans. Replace if faulty.
•
 Error messages
appear on screen.Faulty hardware
Check assembly cited in message. Call authorized
distributor for help with unresolved screen messages.
•
 Modem non-
functionalBad connection
Check that modem is well seated in PCI slot.
Cable disconnected
Ensure cable is well seated in jack and modem.
Bad phone line
1.  Plug cable into another wall jack.
2.  Test jack with fax machine or telephone.
Server down
Reattempt connection tomorrow.
Bad modem card
Replace faulty card with identical type
•
  Clock is wrongSoftware set wrong Use Set DATE/TIME in Menu System to reset clock.
Drained battery
Replace lithium battery with identical type. 
						

							NOTICE
The “libc”  and “libm” libraries (the “Libraries”) are used with the “banner,” “bootbr,” “run_game,”  “swts,” “host_hddnl,”
“targ_hddnl” and “os.elf” applications (the “Applications”).  The Libraries and their use are licensed without charge
and are covered by the GNU Library General Public License.  See the source and related files for the Libraries,
which are found on the hard drive in /usr/src.  Each Application, as linked with one or both of the Libraries (as the
case may be), is referred to as a “W ork.”
The owner of this coin-operated video game is permitted to modify the W orks for his/her own use and to reverse
engineer the W orks in order to debug these modifications, provided that this permission applies only to the extent
necessary to comply with the GNU Library General Public License.  This permission does not include, and the owner
does not have, any right whatsoever to distribute, transmit or otherwise disseminate the Applications or any copies
thereof to any third party whatsoever.  However, ANY SUCH MODIFICATION VOIDS ALL W ARRANTIES, EXPRESS
OR IMPLIED, RELATING TO THIS COIN-OPERATED VIDEO GAME AND ANY OTHER COIN-OPERATED VIDEO
GAME INTO W HICH ANY MODIFICATION IS INSTALLED AND VOIDS ANY PARTICIPATION IN ANY
TOURNAMENT THROUGH THIS COIN-OPERATED VIDEO GAME AND ANY OTHER COIN-OPERATED VIDEO
GAME INTO W HICH ANY MODIFICATION IS INSTALLED. 
						

							WARNINGS & NOTICES
Entire contents of this manual copyright © 2000 Midway Games West Inc. All rights reserved.
WARNING
Use of non-Midway Games W est Inc. parts or circuit modifications may cause serious injury or equipment damage.
Use only Midway authorized parts.
•
  Use only authorized components and parts. Failure to do so will void warranty and may result in incorrect and/or
unsafe operation.
•
  This game is protected by federal copyright, trademark and patent laws. Unauthorized modifications may be
illegal under federal law. This also applies to Midway Games W est Inc. and Skins Game logos, designs,
publications and assemblies. Moreover, facsimiles of Midway Games W est Inc. equipment (or any feature
thereof) may be illegal under federal law, regardless of whether or not such facsimiles are manufactured with
Midway Games W est Inc. components.
WARNING
Prevent shock hazard and assure proper game operation. Plug this game only into a properly grounded outlet. Do
not use a cheater plug to defeat the power cords grounding pin. Do not cut off the ground pin.
WARNING
A very small portion of the population has a condition which may cause them to experience epileptic seizures or
have momentary loss of consciousness when viewing certain kinds of flashing lights or patterns that are present in
our daily environment. These persons may experience seizures while watching some kinds of television pictures or
playing certain video games. People who have not had any previous seizures may nonetheless have an undetected
epileptic condition.
If you or anyone in your family has experienced symptoms linked to an epileptic condition (e.g. seizures or loss of
awareness), immediately consult your physician before using any video games.
W e recommend that parents observe their children while they play video games. If you or your child experience the
following symptoms: dizziness, altered vision, eye or muscle twitching, involuntary movements, loss of awareness,
disorientation, or convulsions, discontinue use immediately
 and consult your physician.
NOTICE
No part of this publication may be reproduced by any mechanical, photographic, or electronic process, or in the form
of a phonographic recording, nor may be transmitted, or otherwise copied for public or private use, without
permission from the publisher.
For Service: Call your authorized Midway distributor.
MIDWAY GAMES WEST INC.
675 SYCAMORE DRIVE
MILPITAS, CALIFORNIA 95035
UNITED STATES OF AMERICA