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Parts of CN3 to CN22 are used differently depending upon the game title.
See the "Wiring Diagram" at the back of this manual.
CN3
CompactFlash (CF) card slot
CN5
LAN connector (Ethernet)
CN7
RGB video output (MINI D-SUB 15P)
CN9
Input/output 1 (JST RA 60P)
CN10
Input/output 2 (JST RA 30P)
CN14
Speaker output (JST NH 4P)
1: L+ 2: L- 3: R+ 4: R-
CN15
Sound effects line output (JST NH 5P)
1: GND 2: L 3: GND 4: R 5: GND
CN16
Serial 1 (JST NH 10P)
1: TXD1 2: RXD1 3: RTS1 4: CTS1 5: GND
6: 5338TX+ 7: 5338TX− 8: 5338RX+ 9: 5338RX− 10: GND
CN17
Serial 2 (JST NH 11P)
1: +5V 2: TXD2 3: RXD2 4: RTS2 5: CTS2
6: GND 7: TDX3 8: RXD3 9: RTS3 10: CTS3 11: GND
CN19
Input/output 3 (JST NH 7P)
1: +5V 2: MP_PB1 3: MP_PB2 4: GND 5: HV_IN0
6: HV_IN1 7:+12V
CN20
DC power input (JST VH 10P)
1: +3.3V 2: +3.3V 3: +5V 4: +5V 5: +12V
6: +12V 7: GND 8: GND 9: GND 10: GND
CN21
Fan power supply (JST NH 3P)
CN22
MIDI (JST NH 6P)
1: MIDI_IN 2: MIDI_INX 3: GND 4: MIDI_OUT 5: MIDI_OUTX
6: GND
SW1
Functions as the TEST Button.
SW2
Functions as the SERVICE Button.
DIP SW
Used to switch the image frequency.
VR1
Sound volume
BAT1
Backup battery
IC15
Key Chip
IC50
SystemSP boot ROM
JP5 - 9
Do not change the points of insertion. Doing so may cause malfunctions and lead to serious
accidents.
GAME BOARD (SystemSP)
127
16
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