Error Code "A." Nishijin Nekketsu Bohkenoh model Y&O

[Pneuma]

Thank you everybody for your assistance with attempting to fix this. Everything is functional except for payout. I'm guessing it is a censor way deep in the machine which is rather unaccessable. Being that everything still works, I propped one of the doors open below the payout motor, causing all balls to fall through into tray for replay, rather than the back catcher. I believe this is the best i'm gonna get it. Now when i run out of balls, i just pull the little lever, and all balls reserved from payout got into the front tray ready to fire. I'm happy enough with this solution until find another machine. Thank you again everybody for your help. Thank you for welcoming me into your community. I am extremely grateful. Cant wait for our next project.

[Peteybob]

Another recent member had a similar problem and found a worn part which he made a new replacement part for it. I'm looking for his write up on it for you to compare with yours.

I found what I was looking for but not sure if it is directly the same thing that is going on for you. Worth looking at though. Look at entries 39 + 40 in this link.

https://www.pachitalk.com/forums/sho...in+Y%26amp%3BO

desktop2.jpg

On another note, I suspect that the "accessory board" is referring to the dongle which may not be needed. If you want a free dongle (for the cost of shipping) for this or a future machine just let me know.

[Pneuma]

I found what I was looking for but not sure if it is directly the same thing that is going on for you. Worth looking at though. Look at entries 39 + 40 in this link.

https://www.pachitalk.com/forums/sho...in+Y%26amp%3BO

desktop2.jpg

On another note, I suspect that the "accessory board" is referring to the dongle which may not be needed. If you want a free dongle (for the cost of shipping) for this or a future machine just let me know.

I would be interested in a dongle. I appreciate it. I was looking for one on ebay, but couldn't find 1. I'm more than happy to pay shipping.

[Peteybob]

Private Message sent

[Pneuma]

My sensor dosent look worn out, but it isn't detecting or releasing balls16346245839583376742283142318263.jpg

Im glad I know this is the sensor now. Maybe I need to replace. I have a piece of string tied to the lever to manually release the winning balls or it gets jamed

[Pneuma]

The ball stops in the vendor until manually released

[Peteybob]

Might be worth opening up for further investigation if you 3D print or outsource it. Member atlanticom posted the part on thingiverse.com

https://www.thingiverse.com/thing:4929657

[Drunkenclam]

Also. In your image. It only shows a small amount of balls in the feed path. Always test with the feed paths full and about 100 balls in the rear tray.

[atlanticom]

Sorry for being late to the Y&O fix-it party. I spent many hours analyzing and troubleshooting my Y&O Obake Land and will gladly share the resulting experiential knowledge gained.


Reading prior posts in the thread, I can confirm the "rubber lump" that Drunkenclam pointed out should NOT be there. I can also confirm Peteybob gave good advice on the payout/ball release solenoid assembly (payout motor as you call it.)


Moving on the current questions at hand, the fact that you need to manually release the balls from that payout sensing assembly indicates the "3D printed part" I shared is working as it should. No need to replace it, nor do I believe that assembly is your root problem.


The steady "A" error on the CR board indicates it cannot communicate with the main game cpu board. (see attached photo) Please verify the communication cable between the two is properly connected. The yellow wire of that connector should be topmost on the main cpu board, and leftmost on the CR board. If things look correct, try unplugging/replugging both ends to confirm connections.


I will await your results.

IMG_0596.JPG

[atlanticom]

One more insight into a previous discussion topic. Both of my Y&O's came pre-modified with a 'solder blob' to enable the shooter (so no dongle was necessary.) See photo for exact location of 'the blob'

IMG_0597.JPG

[atlanticom]

@Pneuma, I looked at your previous pics and it's not clear whether your cpu->cr connector cable is connected in the correct spot on the CR board. It should be connected to the bottom of the CR board as illustrated here.

IMG_0598.JPG

[Pneuma]

Looking at the wires u mentioned one of them appears to be slightly pinched at some point. That may be the issue. I will have my friend cut and reconnect for a solid connection if u think that is a good idea

[Pneuma]

16346669989773305979206098547050.jpg

[atlanticom]

If it were me, I would use an ohm meter and test each of the conductors for continuity from end to end before cutting. However, the signals that pass through that cable will survive a splice (I recall the signal rate was something like 125Hz, so it's not high speed data.) I would also check to make sure none of the pins are broken.

[Pneuma]

So I checked. All of the pins are intact. What cord is this and can I replace? I'm not sure about ohm meter. I've never done that

[Pneuma]

They are cheap enough on Amazon though. I can buy 1. Should I look for replacement wire or not yet?

[atlanticom]

Perhaps your friend who you suggested could repair the wire is familiar with electronic troubleshooting and can test the cable and/or splice it for you. I don't know where you would find a replacement cable (and testing/fixing the one you have should be easy enough.)

Hope this helps.

[Pneuma]

Thanks. I found an OHM reader and will let u know what it says. Thank u

[atlanticom]

@Pneuma, here is what each of those wires are used for:

Pin Purpose
1 Ground (yellow wire)
2 125 Hz Clock signal (opto-isolated)
3 Game CPU to CR communication signal (opto-isolated)
4 CR to Game CPU communication signal (opto-isolated)
5 Power +12v dc (supplied by CR)

From your picture, it looks to me like the 'power' wire is the one that may be damaged.

[Pneuma]

Awesome. Guesse that would make sense I is the power cord. How do I test OHM. Machine poer⁵on im guessing?