NBA Hangtime stuck in test mode

JC Arcade

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I picked up an NBA Hangtime pcb to use in my generic JAMMA cab, and it stays stuck in test mode. According to the manual troubleshooting section, it says "Check that the Test Switch in the coin door and the Test Switch (Position 1) on Dip Switch 2 are set to off."

The dipswitch setting is fine, but I don't have a test switch in this cab. Can I just wire up a microswitch, and if so, does it need to be pushed down or left open?
 
add the switch, it should be open normally (closed to enter test mode), make sure the dipswitch setting changes in the test menu (from open to closed or visa versa) when changed via the dip if it doesn't then you have a short to ground.
 
Seems like it goes into test no matter how I have the dip switches or microswitch set. I get Rom test, Sound test, video gibberish, then starts at Rom test again.
 
Seems like it goes into test no matter how I have the dip switches or microswitch set. I get Rom test, Sound test, video gibberish, then starts at Rom test again.

someone else had this problem with a nba jam board (different board), but it was caused by a broken trace for them.

in the test menu there should be a screen for dip switch settings/display, make sure it changes with the change of the dip on the board.
 
That's the thing. I never get a menu. Goes straight into the Rom test.
 
That's the thing. I never get a menu. Goes straight into the Rom test.

what happens after the rom test finishes? i don't remember if you can skip that or not as i always left that alone and thought that was the way it should be (i'd always know if a rom went bad or if there was an issue).

edit: looking at the manual it looks like switch 2 on dip bank 1 controls the power up test, and should be set to off, switch 1 should be set to off if you don't have a test switch.
 
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could alternatively be a whacked out dipswitch bank as well. try flipping the switch back and forth several times. actually, navigate to the Dipswitch Test under Diagnostics, and just check to see if the switches change On and Off.
 
Thanks, maybe someday we should write a paper on the funny things that this style of PCB boards will do.

Who would ever put a printer port on a NBA jam game.. Laughs.

Mecha has been doing weird frankenstien type things and documenting them, maybe one day he'll update the webpage he has.
 
Got it working. Don't know if I read the voltage wrong the first time I plugged it in, but when I retested, it was at 5.4. Yikes! Turned it down and voila, did a quick test and went straight to the game. Thanks for the help troubleshooting. Now to figure out why the Clutch Hitter I threw in the cab next is buzzing like a mofo and not responding to any buttons/controls.
 
Got it working. Don't know if I read the voltage wrong the first time I plugged it in, but when I retested, it was at 5.4. Yikes! Turned it down and voila, did a quick test and went straight to the game. Thanks for the help troubleshooting. Now to figure out why the Clutch Hitter I threw in the cab next is buzzing like a mofo and not responding to any buttons/controls.

Hey the voltage might have been turned up because of oxidation in your jamma connector.
Why don't you pull off the connector and clean the fingers with a nice pink eraser. Oxidation might give you voltage problems latter one.

Loud buzzing might be a switching power supply is being shorted out or your monitor high voltage might sparking to ground. Either way be careful.
 
Hey the voltage might have been turned up because of oxidation in your jamma connector.
Why don't you pull off the connector and clean the fingers with a nice pink eraser. Oxidation might give you voltage problems latter one.

Loud buzzing might be a switching power supply is being shorted out or your monitor high voltage might sparking to ground. Either way be careful.

what he said. I now do that to every board I receive lol. :)

this thread may particularly interest you: http://forums.arcade-museum.com/showthread.php?p=1915183#post1915183

I actually have a couple new nuggets to add to my collection... I'll post about those soon.
 
what he said. I now do that to every board I receive lol. :)

this thread may particularly interest you: http://forums.arcade-museum.com/showthread.php?p=1915183#post1915183

I actually have a couple new nuggets to add to my collection... I'll post about those soon.

Nice post there. There was a post about increasing the gauge of the wires that bring power to the jamma connector it was to reduce the resistance in the wires and give you a better power transfer from the power supply to the PCB. Some of those jamma harness use cheaper smaller gauge wires.
 
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