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PS2 Guncon2 PCB to Original Namco Arcade Gun mod


mR_CaESaR

Question

Has anyone here by any chance modded their Namco arcade gun to work with a guncon2 for ps2?

 

I would love a time crisis cab or a point blank cab, but unfortunately, I just don't have the room or can afford one at present.

 

The next best thing is to mod my astro city to play ps2 namco light gun games!

 

Enter my inspiration

 

 

I'm now in the process of trying to begin this mode, but before I worry about the solenoid, first things first is to "convert" the Namco gun for the PS2 using the gcon2 pcb!

 

Looking at the video, it seems pretty "easy" in terms of wiring up the +5v, GND, optical line and trigger line and the gcon2 works with the "namco" optical component without any "mods"

 

Sourced out a gcon2

 

http://i.imgur.com/72j6Ecpl.jpg

 

Taking it apart is pretty self explanatory and I ended up with the main PCB

 

http://i.imgur.com/a5UeRz2l.jpg

 

Using the trusty multi meter, I found what I believe to be the trigger wire

 

http://i.imgur.com/SjiYQsul.jpg

 

The GND and +5v

 

http://i.imgur.com/yZ0h6Wwl.jpg

 

And what I believe is the Optical line

 

http://i.imgur.com/JmYSqcIl.jpg

 

Note, I have removed the optical sensor from the PCB

 

http://i.imgur.com/Gq10s7Zl.jpg

 

http://i.imgur.com/aSuj0jXl.jpg

 

I connected the following:

 

  • +5v from the gcon2 pcb to the +5v line of the namco gun (goes to the optical sensor - red)
  • GND from the gcon2 pcb to the GND line of the namco gun (goes to the trigger micro switch and optical sensor - black)
  • Optical sensor line from the gcon2 pcb to the Optical sensor line of the namco gun (white)
  • Trigger line from the gcon2 to the trigger line of the namco gun (blue)

 

I'm not sure if there's anything else that I've missed, but for the life of me, I can't work out why the namco gun doesn't work. The video appears to show it should work seamlessly but when I try and calibrate the Namco gun on the PS2 (gcon2 calibration screen), nothing registers.

 

The PS2 definitely recognises the gcon2 and it did work prior to removing the shell and sensor.

 

I'm hoping someone on here has previously done this type of mod or is very familiar with the gcon.

 

Any ideas or suggestions?

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So I think I might let you all develop further and keep in the loop until I'm ready.

 

 

I stop development at this stage. For what I need it, it is good enough. Force feedback is too loud too use inside a flat anyways... I did it more for the laser =)

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I stop development at this stage. For what I need it, it is good enough. Force feedback is too loud too use inside a flat anyways... I did it more for the laser =)
No worries. I have been watching through your channel. Great work. Subscribed. I'm up to episode 5.

 

Sent from my HTC 2PZF1 using Tapatalk

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I found this thread via google search while trying to find information on replacing the light sensor (phototransistor) in a console version of the Konami Justifier gun. I wanna thank you guys for all the useful info I've gained from reading this site. I registered and finally posted something in hopes of finally finding out a proper replacement part or circuit for the sensor in these old Justifier Guns. Here is a link to the post I made in the console section of the forum. I would appricate any and all advise you might have on this topic. This is the thead that led me here so I wanted to link to it as I've found those participating in this thread to be knowledgeable and my best bet to find the answers I'm looking for:

 

https://www.aussiearcade.com/forum/g...hototransistor

 

Thanks in advance for your time and consideration.

 

 

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Hi everyone!! I got to this post trying to connect my namco to my ps2 using a gcon pcb. I acually have a time crisis 2 cabinet, but I wanna play connecting a ps2 there. I'm a noob just learning 🙂 So thank you for letting me share stuff.

My first idea was to reuse the +5v and +24v from cabinet itself and to redirect sensor, ground and trigger from namco plug (plug, not inernal cables) to the gcon pcb. Trigger worked that way (easy, it's a button) but i don't get signal when aiming. I'm sure the problem is i just connected signal cable from namco to gcon2, but not ground and 3.3v (pins 1, 3).  My real problem is I don't really understand how this works:

  • If I'm already feeding the namco gun with 5v from cabinet, do i need to connect pin 3 from gcon sensor to namco one? If so... why? Is this just a power supply for sensor or does it do something else?

 

  • Do i need to connect the ground from namco sensor to gcon sensor directly? Why?. Again, i don't understand what ground is doing here, that's why I'm doing it wrong.

The problem is I don't understand how a sensor works. I thought it got 3v along with ground to activate the sensor and a third let's say cable or pin to send readings. Following that rationale, which i assume is wrong, i shouldn't care about connecting anything else but signal from namco (given by plug) to signal in gcon2 pcb. Obviously I'm wrong.

 

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