Midway Sportstation 25in Standard 4 Player Operation Manual

6-5
CABINET WIRING DIAGRAM 

6-6
CONTROL PANEL WIRING DIAGRAM 

6-7
CONTROL WIRING DIAGRAM
(49-WAY JOYSTICK)
POSITION LOGIC TABLE
DIRECTION FULLY
LEFTMODERATELY
LEFTSLIGHTLY
LEFTDEAD
CENTERSLIGHTLY
RIGHTMODERATELY
RIGHTFULLY
RIGHT
FULLY
UP01110111
(00)01110011
(01)01110001
(02)01110000
(03)01111100
(04)01111110
(05)01111111
(06)
MODERATELY
UP00110111
(07)00110011
(08)00110001
(09)00110000
(10)00111100
(11)00111110
(12)00111111
(13)
SLIGHTLY
UP00010111
(14)00010011
(15)00010001
(24)00010000
(24)00011100
(24)00011110
(19)00011111
(20)
DEAD
CENTER00000111
(21)00000011...

6-8
 SOUND I/O BOARD ASSEMBLY A-23431 

6-9
SOUND I/O BOARD JUMPER POSITION TABLE *
Jumper Location Function Meaning Position State
Input Mode Pins 1 & 2
J1
(Note 1)Near U9 & Crystal Y3 I/O Connector P2
Output Mode Pins 2 & 3
Positive Sync Jumper Not
InstalledJ2 Between U35 & U10 Video Sync
Negative Sync Pins 1 & 2
Input Mode Pins 1 & 2
J3
(Note 2)Near U15 I/O Connector P4
Output Mode Pins 2 & 3
J4 None None Not Used None---
Input Mode Pins 1 & 2
J5
(Note 2)Between U15 &
Connector P2I/O Connector P4
Output Mode Pins 2 & 3
J6 None None Not...

6-10
SOUND I/O BOARD LED INDICATOR STATUS TABLE
LED Location Function Color State Meaning
Off --
On --LED1
(Note 1)Near U11 Not Used
(Remains Off)Green
Blinking --
Off Not in Use (No Game Linking)
LED2
(Note 2)Near U34 & Crystal
Y1Linking Connector
StatusGreen
On Link Continuity Good
Off* No Power
LED3
(Note 2)Near the JAMMA
Connector-5V Power Indicator Red
On* Normal Operation
Off No PowerLED4
(Note 2)Near U35 &
Connector P14+12V Power
IndicatorRed
On Normal Operation
Off No PowerLED5
(Note 2)Near...

6-11
CPU BOARD INDICATOR AND SWITCH LOCATIONS
CPU BOARD SWITCH
Switch Location Function Positions State Meaning
2 Off Normal OperationS1* Edge Near U10
and U12Resets and
Restarts Game
On Forced Reset
*Notes
This switch resets the CPU Board without shutting off power at the power supply. 

6-12
CPU BOARD JUMPER LOCATION TABLE
Jumper J1 J2 J3 J4 J5 J6
Located
Near…U28 &
Connector P5U22 & U27
CPU BOARD JUMPER POSITION TABLE
ROM Type Default Options* J1 J2 J3 J4 J5 J6
27C080, 1M X 8, EPROM 1-2 2-3 1-2 1-2 -- --
27C040, 512K x 8, EPROM 1-2 1-2 1-2 1-2 -- --
27C010, 128K x 8, EPROM 1-2 1-2 1-2 2-3 -- --
29F040, 512K x 8, Flash 2-3 1-2 2-3 1-2 -- --
29F020, 256K x 8, Flash 1-2 1-2 2-3 1-2 -- --
Boot
(U27)
29F010, 128K x 8, Flash 1-2 1-2 2-3 1-2 -- --
27C080, 1M x 8, EPROM -- -- -- -- 2-3 --...

6-13
CPU BOARD LED INDICATOR STATUS TABLE
Device Location Function Color State Meaning
Off Insufficient Power
On Power OK
LED1 Near U6, U7 &
U163.3V CPU
Power
IndicatorRed
Blinking Power Supply Fault
Off Disk Not in Use
On Locked Up Disk
LED2 Near U28 &
Connector P5Hard Disk
Drive
ActivityGreen
Blinking Normal Disk Activity
Off*
On*
RP63 Near U22 &
U26Indicator Red
Blinking*
SequentiallySee Note 3, Below.
Notes
1.  LED1 monitors CPU power (+3.3 volts). If his LED is off or blinking, investigate processor...

6-14
VIDEO BOARD INDICATOR AND SWITCH LOCATIONS
Note
This video board has no jumpers or LEDs.