Simple request to any Ghost In The Shell: SAC 2012 owners

[punisher]

Anyone who owns a Ghost In The Shell: SAC 2012 pachinko from OK!!, I would like to ask for your help.

I just need a couple of photos from an unmodified machine to help me fix my unit and get it back to full working condition.

For the back history please see my original post
https://www.pachitalk.com/forums/sho...highlight=gits


I need a close-up photo of the security board OKKK-4M, since my board has been modified it's missing a capacitor and resistor.
I'm looking for the color code of the C39 capacitor and R71 resistor, as located in the attached photo highlighted in yellow. Easily accessible by just looking at the back of the unit.

The only other modification that I found is at the bottom of the cell some part has been removed and ground down, a photo of this area from an unmodified cel would also help.

Hopefully replacing the capacitor and resistor will fix the error.

Thanks in advance for your help.



IMG_5683-1.jpeg
Location where C39 and R71 are on the OKKK-4M board



IMG_5678-1.jpeg
Zoomed in area of missing C39 and R71



cell bottom.jpg
Bottom of cel modified areas circled in red

[Peteybob]

For what it is worth and until you find an exact matching title:

I don't have the same title but I do have the AKB48 Team Surprise 2012 machine by OK!! / KYORAKU. Having similar main boards I took a pic. My machine is unmodified yet it does not have anything at C39 and R71 like yours.

20201212_132303.jpg

[punisher]

Thanks for the photo.

Interesting, looking at your picture the C39 and R71 looked like they were cut like mine.

Is your security seal still intact?

Also what is that grey wire in the photo attached to?
My board show signs of a jumper wire attached, at one point in time, on a couple of the chips. Leftover solder and flux on some of the pins.

[Drunkenclam]

I have a different AKB 48 but in the same frame. Although my board at this location is different. The only reason I bring it up is. The board has loads of footprints for components unused.

20201213_171056_resized.jpg

Maybe although your security seals were tampered. Maybe your looking in the wrong place. Or at least worth testing other options.

If you are getting the ejection error. This should happen (I think) after a number of start pocket hits. I was told 50 but that seems high to prevent fraud. But it's worth testing. Also check that the balls exit the back of the cel through the ejection sensor.

Then check the ejection sensor is working. I believe the processor measures resistance across the sensor which alters when a ball go through. Sorry. That's the limit of my knowledge. I can't say if the resistance increases or decreases. Then follow the circuit path from the ejection sensor back to the main board through all the sub circuit boards and looms.


There is one on YJA at the moment. Not sure if you can get a clear enough image of teh board from the listing.

https://page.auctions.yahoo.co.jp/jp/auction/u405675059

[Peteybob]

Thanks for the photo.

Interesting, looking at your picture the C39 and R71 looked like they were cut like mine.

Is your security seal still intact?

Also what is that grey wire in the photo attached to?
My board show signs of a jumper wire attached, at one point in time, on a couple of the chips. Leftover solder and flux on some of the pins.

I do have one of the secure knockouts missing on the left of the case around this board. There are multiple jumpers on this board as well. Question is if this is specific to my cell or is it a modified board? The game play seems to be like anyone else's videos I've seen. Perhaps I win more often though.

AKB board.jpg

I recall that this cell was moded when I received it as far as only the balls returning to the front payout tray which I corrected. If any external wiring was attached, it was removed prior to shipping from Japan. I'll pull the cell later this week for a look at the bottom for you. I have a Ultraman cell I want to put back in for a bit.

Which frame are you using?

20201213_235300.jpg20201213_235129.jpg

[punisher]

Maybe although your security seals were tampered. Maybe your looking in the wrong place. Or at least worth testing other options.

If you are getting the ejection error. This should happen (I think) after a number of start pocket hits. I was told 50 but that seems high to prevent fraud. But it's worth testing. Also check that the balls exit the back of the cel through the ejection sensor.

Then check the ejection sensor is working. I believe the processor measures resistance across the sensor which alters when a ball go through. Sorry. That's the limit of my knowledge. I can't say if the resistance increases or decreases. Then follow the circuit path from the ejection sensor back to the main board through all the sub circuit boards and looms.

Oh yes, definitely looking at all options.

Seeing how Peteybob's board is missing the exact capacitor and resistor with the mods still intact, I'm pretty sure my board was modded similar to this at one point in time. With this in mind, the mods on my board have been removed, but the capacitor and resistor have not been restored to revert the board back to factory working condition.
With the mod intact the circuit path is at least being rerouted, with the mod removed the circuit path can't complete the circuit. It might be best to put the mod back on, but that's looks to be alot more involved and besides I don't have a clue on how it was done.

As for the ejection sensor, where would that be located at? If it's located at the back of the cel, then I might not have one, probably removed for the mod. Not sure what was removed from the back of my cel, but I can see two empty posts where screws are supposed to go and some areas where the plastic is cut away. If there was a sensor in this area, I can't find any open terminals on any of the boards were this would have been connected to.
The only sensor I could find is in the bottom of the frame where only the balls from the payout chutes go through after leaving the cell, I guess I'll start there.

Thanks for the auction link, but unfortunately the photos are hard to make out any of the small components. Found another piece my machine is missing from those photos, the plastic part that covers the wiring of the security board.

[punisher]

Which frame are you using?

I have the black frame, just like in your first photo.

[Peteybob]

Okay, I have CR Pachinko Shin Onimusha in that frame and can gather some pictures for you.
http://www.pachinko-play.com/en/mach...tion/okky1003/

[Drunkenclam]

The only sensor I could find is in the bottom of the frame where only the balls from the payout chutes go through after leaving the cell, I guess I'll start there.

That would be the kitty

I asked mandoman to have a look at his, but its in storage at the moment.

[punisher]

The error has been fixed. Thanks Drunkenclam & Peteybob for your help.

Replacing the missing cap and resister solved the error.
Now I can enjoy this machine in all its glory.

For future reference I used a 10000pf 100v ceramic capacitor @ C39 and a 100 ohm 1/4w resister @ R71.

[Drunkenclam]

Great news. Well done.

Have a banana

[mandoman]

Day late, dollar (pound) short.
Here’s my H2 version board for completeness.

B281181F-2A7D-4A79-AC84-D798C91986EC.jpeg

[Peteybob]

Glad to hear you got it fixed up