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Author Topic: NBA JAM Wiring issue  (Read 1637 times)

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g1275

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NBA JAM Wiring issue
« on: July 18, 2006, 12:22:11 am »
I just recently bought an NBA JAM cabinet and I'm having a bit of a wiring dilemma. I had to change the power supply and I wired it how it was before. The monitor comes on but the board doesn't power up. I think I have found the culprit but I just wanted a second opinion.

As you can see in picture #1 that the -5va1 is disconnected to the board.


As you can see in picture #2 that -5va1 is connected to the power supply.


As you can see in picture #3 -5va1 is not connected to the board


Do I have to get a new Jamma harness or can I somehow finagle the -5va1 into the Jamma harness without the metal receptors?
« Last Edit: July 18, 2006, 07:05:34 am by Peale »
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Kevin Mullins

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Re: NBA JAM Wiring issue
« Reply #1 on: July 18, 2006, 01:21:55 am »
Can't see the pics....
But NBA JAM doesn't use -5v.
A and 1 ( A1 is two pins) are grounds.
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Not a technician . . . . just a DIY'er.

SirPeale

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Re: NBA JAM Wiring issue
« Reply #2 on: July 18, 2006, 07:06:10 am »
I had to resize those pictures.  If anyone wants to see them full size, just right click on them and select 'view image'
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SuperGunGuru

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Re: NBA JAM Wiring issue
« Reply #3 on: July 18, 2006, 09:53:53 pm »
Did you check the +5 from your new power supply? If it's too low or high, that can cause problems.
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