Burgertime board repair

turbodrabbit

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I have a burgertime cocktail that needs some board work. The characters are not the correct color, (peter pepper is black sometimes), and some characters are not what they are supposed to be (hotdog sometimes is peter pepper), the onion doesn't look right, and random numbers are popping up on screen.

Does anyone have a jamma adapter, and willing to help out?
 
Have you checked your power supply/voltages? Those power supply connectors are notorious for burning.

Edward
 
I swapped out the power supply board for a switching power supply, but we pulled my boards and put them in another burgertime cabinet, and the same thing happened, so I believe this is a board issue.
 
Sounds almost like a character ROM addressing problem. Have you reseated all the ROMs?

-Ian


I have not, I don't even know where to start, I am new to the arcade machine. Can you give me some more details, on where they are located, and what I need to look for?
 
I have not, I don't even know where to start, I am new to the arcade machine. Can you give me some more details, on where they are located, and what I need to look for?

Burgertime is a two board stack. IIRC, the smaller board on the top is just for the sound. The larger board should have a fair number of ROM chips on it. They're the ceramic chips in sockets, with paper labels (or exposed windows) on them. Newer ROMs are a purplish brown color, older ones are white. The ROMs in BurgerTime should be 24 pin. Using a small flat blade screwdriver, lever up one end of the chip, then the other, pulling it out of the socket, then press it firmly back down. You don't have to remove the chip entirely - but back it out of the socket and press it back down. Don't move the chips around or get them turned around in their sockets.

While you're in there, might as well do the same to other socketed chips. Look out for mask ROMs - Midway used some really crummy mask ROM chips, they're also 24 pin chips, but they are black plastic. If you have any of those, inspect carefully the legs for traces of dark corrosion. Shouldn't be any in BurgerTime though - all BurgerTime's I've ever seen had only EPROMs (ceramic chips).

Over time, heating/cooling/vibration causes the chips to start to work their way out of their sockets. Also, sometimes the pins build up light corrosion on the pins. Reseating them helps them make better contact with the sockets.

-Ian
 
hey

I tried working the rom chips out and re-seating them, and nothing has changed. Here is a screen shot, pepper has a black jacket when in play, and mr. hotdog is a white/green mr. pepper, mr. pickle is a green blob, and the random number that are popping up.

DSCN6324.jpg
 
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