Prove whether dead switches are on the playfield or the switch board
Steps
- Note which switch board connectors (for example J1 and J2) have all their switches dead.
- With power off, pull the plastic key pins out of those playfield plugs so they will fit a different header.
- Plug one of them into a header that is known to work, such as J3, and power up in switch test.
- If the switches now register (except the one on the key position of that header), the playfield wiring is good and the fault is on the switch board.
- Return the plugs to their own headers when finished.
Systems
Related tips
- Dead switches from failed SIP resistor networks
- How the Capcom switch matrix is wired
- Erratic opto switches from cracked opto board joints
- Pinball Magic trunk keeps opening and multiball won't load
- Where the boards sit in a Capcom backbox
Source: Capcom Pinball Problems/Solutions