miminya.me ~ Cabinet Connector Pinout

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Cabinet Connector Pinout

Every cabinet-side connector on the original I/O board, transcribed from the IKA Victor schematic recreation. These have not been fully re-verified by continuity; beep out any connector you intend to build a mating part for.

Conventions:

  • _SW — switch input, active-low, pulled up on the board.
  • _LIGHT — lamp output, sunk by a ULN2803A. Lamp anodes go to the +12 V pin on the same connector.

P1 buttons — J7, Molex 5045-12A

Pin Signal Pin Signal
1 GND 7 P1_K3_LIGHT
2 P1_K1_SW 8 P1_K4_SW
3 P1_K1_LIGHT 9 P1_K4_LIGHT
4 P1_K2_SW 10 P1_K5_SW
5 P1_K2_LIGHT 11 P1_K5_LIGHT
6 P1_K3_SW 12 +12V

P2 buttons — J10, Molex 5045-14A

Pin Signal Pin Signal
1 NC 8 P2_K3_LIGHT
2 GND 9 P2_K4_SW
3 P2_K1_SW 10 P2_K4_LIGHT
4 P2_K1_LIGHT 11 P2_K5_SW
5 P2_K2_SW 12 P2_K5_LIGHT
6 P2_K2_LIGHT 13 +12V
7 P2_K3_SW 14 NC

Start and effector 1 — J4, Molex 5045-08A

Pin Signal Pin Signal
1 NC 5 P2_START_SW
2 GND 6 P2_START_LIGHT
3 P1_START_SW 7 EFF_K1_SW
4 P1_START_LIGHT 8 EFF_K1_LIGHT

Effectors 2–4 — J3, Molex 5045-08A

Pin Signal Pin Signal
1 EFF_K2_SW 5 EFF_K4_SW
2 EFF_K2_LIGHT 6 EFF_K4_LIGHT
3 EFF_K3_SW 7 +12V
4 EFF_K3_LIGHT 8 NC

P1 turntable — J6, Molex 5045-08A

Pin Signal Pin Signal
1 +12V 5 P1_TT_S1
2 P1_TT_S0 6 GND
3 GND 7 P1_TT_LIGHT
4 +5V 8 +5V

P2 turntable — J9, Molex 5045-08A

Pin Signal Pin Signal
1 +12V 5 +5V
2 P2_TT_LIGHT 6 GND
3 GND 7 P2_TT_S0
4 P2_TT_S1 8 +5V

Note the differing pin order between the two turntable connectors.

Test, service and counter — J2, Molex 5045-05A

Pin Signal
1 GND
2 SERVICE_WH_SW — white button
3 TEST_RD_SW — red button
4 COIN_CNTR — mechanical coin counter solenoid
5 +12V

P1 pedal — J5, Molex 5045-02A

Pin Signal
1 P1_PDL_SW
2 GND

P2 pedal — J8, Molex 5045-03A

Keyed, with two grounds.

Pin Signal
1 GND
2 GND
3 P2_PDL_SW

Coin switch — J13, Molex 5045-02A

Pin Signal
1 COINSW
2 GND

The 1N4148 isolation diode is on the board side of this connector.

Power — J12, Molex SPOX 5281-04A

TE 350211-1 is an equivalent part. Older guides describe this as a "5058" connector, which does not match the schematic.

Pin Signal Note
1 +12V Filtered by C1, 470 µF 25 V
2 GND
3 GND
4 +5V Filtered by C2, 470 µF 16 V

Neon and light controller — J11, 2×10 IDC

330 Ω series lines to the external AC relay board driving the neon tubes and cabinet flashers. Bit-to-lamp assignment is per-cabinet; see the note on write port 0x100 in bus-protocol.md.

Signal inventory

Totals for a direct replacement board.

Switch inputs — 21, all active-low with pull-ups: P1_K1–K5, P2_K1–K5, P1_START, P2_START, EFF_K1–K4, P1_PDL, P2_PDL, TEST_RD, SERVICE_WH, COINSW.

Quadrature pairs — 2: P1_TT_S0/S1, P2_TT_S0/S1.

Lamp outputs — approximately 25, all ULN2803A sinks: P1_K1–K5, P2_K1–K5, P1_START, P2_START, EFF_K1–K4, P1_TT_LIGHT, P2_TT_LIGHT, COIN_CNTR, plus the neon channels.

Supplies at the connectors — +5 V for the encoders, +12 V for the lamps, and ground.

This page is synced from docs/connector-pinout.md in the ez2-io repo.

Updated 18 Oct 2026

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