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Help! Couple questions with standup machine, PCB and rear panel pressure switch
nagamitsu:
Picked up my second arcade machine. Now have a standup and cocktail. Game PCB board with the standup, whole unit powers up, but no game starting up on monitor. There's some toggle/dip switches on PCB, and next to them, two lit red lights. Almost wondering maybe if the switches are in wrong position or game board simply inoperable.
Back of cabinet (missing the back unfortunately) has a pressure switch. Obviously so if back panel taken off, it shuts down the machine. I think someone wired it differently, so that when switch is out the machine still runs, pressed in and it shuts down machine. (opposite of what it should be) Not sure how to switch the wires on it. I'll upload some pics. There's two blue wires that run from it to power supply, and two brown, one to power supply and one to the external (top) power switch.
Tim
Just figured out my arcade machine was originally, I believe it was a Ms. Pacman machine, converted/painted to be P.O.W.
nagamitsu:
Ok, found info on the dip switches, maybe I just need to try this board in my cocktail to see if it is same:
CLOSEST TO VOLUME POT
DIP 1 1 2 3 4 5 6 7 8
-----
FLIP X
OFF
BONUS ON EVERY
OFF SECOND
# OF METERS ON 3
OFF 2
COIN 1 OFF OFF 1 COIN 1 PLAY
COIN 2 OFF OFF 1 COIN 1 PLAY
DOIP 2 1 2 3 4 5 6 7 8
------
DIFFICULTY ON OFF EASY
OFF OFF NORMAL
OFF ON HARD
ON ON VERY HARD
ATTRACT SOUND OFF OFF YES
ON OFF NO
GAME MODE OFF ON NEVER FINISH
ON ON STOP DISPLAY
BONUS 1,2 OFF OFF 20K 50K
ON OFF 40K 100K
OFF ON 60K 150K
ON ON NONE
CONTINUE OFF YES
MODE ON TEST
paigeoliver:
Dip switch settings won't make your game inoperable.
The pressure switch you are talking about is an interlock switch. It should allow power if either pressed in or pulled out, but not at the neutral position. These are wired to the main cabinet AC power, so if one of these is tripped then nothing has any power. A lot of people just relocate these a little bit inboard so they can just pull them out and effectively bypass them.
mgb:
A couple things to look at.
First is it just the monitor that's not operating or the game board.
Check for neck glow on the monitor.
Coin up the game and see if you here the game playing even if you may not see it playing.
You obviously have something at the game board but the power should be checked for proper voltage.
Check for voltage where the connector goes to the game board. It should be 5v-5.2 volts.
Too low will cause problems. Some games will not boot at even 4.7 volts.
Adjust the power supply to proper voltage.
nagamitsu:
Thanks! Realized about the dip switches after the fact. The two lights on PCB appear to be indicators of both 5 and 12 volt power being received, meaning a good sign if both lit.
I think the PCB is non-functional. Not even sure if it can be fixed or worth fixing. It is Prisoner of War. I have a cocktail unit as well, plugged it in there and no sounds, and just a few scrolling blue lines across the monitor. Going to post some pics of both units in the restoration section. Pleasantly surprised seeing what is beneath the paint of the standup after it was re-branded for POW.
Tim