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Main => Main Forum => Topic started by: jkimrey on February 19, 2018, 10:25:06 am

Title: JAMMA harness - too tight?
Post by: jkimrey on February 19, 2018, 10:25:06 am
I just recently purchased a "super" JAMMA harness from a reputable arcade supply company.

When I try to insert the game board into the JAMMA slot on the new harness, it is VERY tight and difficult to insert; so much so that I'm worried I'm going to break and/or damage the connector on the board.

I understand that there should be a tight fit, but it seems to me like it is too tight.

Has anyone experienced something like this?  Should I force the board in or is it possible this particular harness slot has an issue?

BTW - I have verified I'm inserting the board the correct (keyed) way.

TIA
Title: Re: JAMMA harness - too tight?
Post by: Nephasth on February 19, 2018, 10:46:35 am
I just recently purchased a "super" JAMMA harness from a reputable arcade supply company.


There's your problem right there... :cheers:
Title: Re: JAMMA harness - too tight?
Post by: jkimrey on February 19, 2018, 11:09:53 am
Perhaps :)

It was actually a harness that I have seen recommended here so I went with it...

I just recently purchased a "super" JAMMA harness from a reputable arcade supply company.


There's your problem right there... :cheers:
Title: Re: JAMMA harness - too tight?
Post by: baritonomarchetto on February 20, 2018, 12:52:32 am
Have you more than one PCB at hand? Could the PCB connector be the problem?
Eventually buy a jamma harness, insert and remove it a few time and it will do the job.
Title: Re: JAMMA harness - too tight?
Post by: jkimrey on February 20, 2018, 03:31:44 am
Yep - same issue/tightness with all my PCBs.  They fit fine in an older harness I have.

I'll try inserting and removing an older PCB board I have with the hope it will listen up the new harness connection...

Have you more than one PCB at hand? Could the PCB connector be the problem?
Eventually buy a jamma harness, insert and remove it a few time and it will do the job.
Title: Re: JAMMA harness - too tight?
Post by: baritonomarchetto on February 20, 2018, 03:59:48 am
I wrote "jamma harness" meaning "jamma fingerboard", sorry