Raiden 2 pcb Problems HELP!

beh3moth

beh3moth

Robert "Helmet" Patrick
Joined
Mar 17, 2005
Posts
1,240
I turned on my raiden 2 this morning and the graphics are corrupted, that if you can call them graphics, squares running vertically up the screen, no sound.

There is a lithium battery on the board, could this be the problem, allthough i am pretty sure it is used to save high scores. I have checked the board for physical problems, even tried re-seating the roms. this is an original 1993 seibu board.
Can anyone help??
 
ttooddddyy

ttooddddyy

PNG FTW,
Joined
Nov 29, 2001
Posts
8,335
beh3moth said:
I turned on my raiden 2 this morning and the graphics are corrupted, that if you can call them graphics, squares running vertically up the screen, no sound.

There is a lithium battery on the board, could this be the problem, allthough i am pretty sure it is used to save high scores. I have checked the board for physical problems, even tried re-seating the roms. this is an original 1993 seibu board.
Can anyone help??
Click to expand...

The board runs fine without the battery, its for the ram back up for high scores.
Sounds like you have corrupt gfx rom(s) you could program a set of eproms from mame, strange how the sound is also effected ?
Is the 5 volts at the jamma edge connect OK
 
beh3moth

beh3moth

Robert "Helmet" Patrick
Joined
Mar 17, 2005
Posts
1,240
the jamma edge all seems fine, from the speakers the game makes an odd 'swoop' type sound when i turn it off :spock: It hasnt been knocked about either, usually in the games there is some gfx even if the roms are corrupted, if only showing a ram test.
 
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