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Have you already confirmed other pcbs work fine?
Have you already confirmed other pcbs work fine?
- Thread starter GuileWinQuote
- Start date
GuileWinQuote
Enthusiast
I'm going to check on a friend's cps2 this weekend, here's hoping whatever the problem is, it's not a big deal to get fixed!
GuileWinQuote
Enthusiast
So, I just tested on another CPS2 A and B board that works with my friend's HAS and it still has the stuck button input for the 3rd button, so it's not my CPS2 board.
Can you clarify this statement? You say you tested YOUR cps2 on YOUR FRIEND'S HAS and the button is still stuck. If that is the case then it is 100% a problem with YOUR cps2.
GuileWinQuote
Enthusiast
sorry I thought I worded it well,
I tested another CPS2 board on my HAS, and the third button is still stuck. The CPS2 board works fine on my friend's own HAS, so the problem is my HAS.
Did he do the test you told him to? I'd hate to not have the microcontroller confirmed as the issue first.
GuileWinQuote
Enthusiast
I'm a bit too inexperienced and nervous to take off the microcontroller myself, but I have confirmed that with or without anything plugged in, and with two different CPS2 A+B boards that the third button is stuck. I'll ask a more experienced friend if he's willing to do it, but if not, would I be able to send the HAS back for repair?
My biggest fear is to mess with this stuff and break it
My biggest fear is to mess with this stuff and break it
The Spaniard
Professional
Taking the chip off is very easy. If you did it with your CPS2 multi it would be familiar. All you need is some gentle lifting with a screwdriver on each end to slowly lift it out.
GuileWinQuote
Enthusiast
My friend is going try out the 28th pin test on my HAS, I'll get back to yall once I find out the results
It may help to show a picture of the underside of the HAS PCB, specifically the region where the controller chip is located. I doubt there would be an issue here but worth ruling out a possible short caused by a blob of solder making contact where it shouldn't be.
GuileWinQuote
Enthusiast
UPDATE
I sent @GuileWinQuote a new microcontroller, but he still got the same issue, which seemed almost impossible to me. We ran out of options for "remote" troubleshooting and he sent me his HAS unit and the JAMMA harness he was using (it wasn't made by me).
This is what I found today:
Can you see this? -5V is wired to P1 button 3
I sent @GuileWinQuote a new microcontroller, but he still got the same issue, which seemed almost impossible to me. We ran out of options for "remote" troubleshooting and he sent me his HAS unit and the JAMMA harness he was using (it wasn't made by me).
This is what I found today:
Can you see this? -5V is wired to P1 button 3
Last edited:
xodaraP
Legendary
Wow he's lucky it didn't cause damage to the CPS2 motherboard....
Also, why is the OP using that at all? Need more clearance between the CPS2 and the HAS?
I see no benefit to using something like that when you can connect the HAS directly to the JAMMA edge, interested to know what the deal is
Also, why is the OP using that at all? Need more clearance between the CPS2 and the HAS?
I see no benefit to using something like that when you can connect the HAS directly to the JAMMA edge, interested to know what the deal is
Sp33dFr34k
Champion
Holy crap, no wonder the 3rd button was "stuck". Glad to see you've found the issue now and even better the HAS is not at fault here 
Great service!
Not a fan of extension cables myself but I guess some people require them for certain setups.
Good lesson for the future, remove all unnecessary devices from the chain to rule out all possibilities.
Not a fan of extension cables myself but I guess some people require them for certain setups.
Good lesson for the future, remove all unnecessary devices from the chain to rule out all possibilities.
I use one too. It's pretty much necessary unless you have pcb legs that are the EXACT same height as the JAMMA edge on the HAS. I learned the hard way and cracked the end of the JAMMA connector.
