EhmSii
Student
Hi all,
I’m currently working on integrating a Point Blank 3 (Namco System 10) setup into a cabinet that was previously converted to Point Blank 2, and I’m trying to verify whether the EXIO(G) board I have is functioning correctly.
The system is partially functional, but not correct:
At this point, I’m trying to isolate whether:
I’ve done a significant amount of signal tracing on J1 and confirmed:
Given all of that, the “center-only” behavior strongly suggests a timing / processing issue on the EXIO side, which is why I’m looking for a comparison board.
If needed, I can provide detailed measurements, pin mapping, and photos of my board and setup.
Appreciate any help—this project is very close, and I’m trying to determine whether I’m chasing a wiring issue or a hardware issue at this point.
Thanks!
I’m currently working on integrating a Point Blank 3 (Namco System 10) setup into a cabinet that was previously converted to Point Blank 2, and I’m trying to verify whether the EXIO(G) board I have is functioning correctly.
Current setup
- PB3 stack with:
- MAIN(M) PCB 8906960402
- EXIO(G) PCB 8906970602
- Cabinet uses Suzo-Happ .45-cal Type 2 guns (6-wire configuration)
- I’ve adapted the wiring to interface with the EXIO board:
- Trigger lines confirmed working (via JAMMA)
- Sensor lines routed to J8 (gun opto header)
- Power, ground, and returns mapped and verified
- Composite sync identified and injected
Current behavior
The system is partially functional, but not correct:
- Game boots, sound works, inputs register
- Trigger pulls produce screen flash and gun SFX
- Hits register, but only at the center of the screen
- Guns do not track movement at all
- Some odd cross-interaction between players (e.g. holding one trigger affects the other)
- Player 2 start became intermittent after rewiring (likely secondary issue)
What I’m trying to determine
At this point, I’m trying to isolate whether:
- I still have something wrong in my wiring/configuration
or - My EXIO(G) board itself is faulty or partially degraded
I’ve done a significant amount of signal tracing on J1 and confirmed:
- Sensor inputs are reaching the board (via J8 → J1)
- Trigger inputs are reaching the system (JAMMA side)
- Sync is present on a candidate pad (~3.8V DC average)
- GOUT behavior is observable in output test
Given all of that, the “center-only” behavior strongly suggests a timing / processing issue on the EXIO side, which is why I’m looking for a comparison board.
Ask
- Does anyone have a known-good EXIO(G) board (8906970602 / 8906961602) for sale?
- Alternatively, has anyone encountered similar “center-locked gun” behavior on System 10 and can confirm whether it was board failure vs wiring?
If needed, I can provide detailed measurements, pin mapping, and photos of my board and setup.
Appreciate any help—this project is very close, and I’m trying to determine whether I’m chasing a wiring issue or a hardware issue at this point.
Thanks!
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