Pacman

[paulcan69]

Hi all,

I have a Pacman bootleg running on this same hardware as this board that Andy (P-man) has on his website for sale right now...

http://www.andysarcade.net/store/index.php?act=viewProd&productId=1899

Although his is a Ms Pacman mine is the exact same hardware (Jamma pcb)

Irongiant/Vectorglow (Phil) sold this to me 3-4 years ago been fine for years, however lately it has the strangest fault.

I thought that someone must know as although not an original pcb the faults on Pacman must be almost the same? Or am I way off...

Anyway the board plays perfect in every way...gfx/sound are fine however if you eat say half the dots on the screen then die some of the dots may return, or when you die it may take away some dots you haven't eaten yet??

Makes the game a bit pointles

Any ideas where to start or look?

Ever seen this fault before on a real board?

Thanks

Paul
paulcan692012-05-12 16:54:53

 

[grobda]

sounds like a ram fault, id start there

this page has good info on pacman;

http://lawnmowerman.rotheblog.com/

 

[Equites]

Does sound like a failing RAM, I'm sure I had one of those bootlegs, JAMMA right?

 

[paulcan69]

Thanks Equites,

I have looked and the only Ram on this board is a

1x HM6264LP-12

And

1x 6148

Can a Wellon VP-280 test these rams do you think?

Off to check + see if I have these rams on other boards!!

Ta

Paul

 

[Equites]

You should have a 2148 RAM there too or an equivalent. I think that's for sprites though.

 

[favouredson]

You should have a 2148 RAM there too or an equivalent. I think that's for sprites though.

That will be the 6148.