Judge Dredd
Bally, 1993You're currently viewing posts by Pinsider ForceFlow.
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Quoted from pinmike:Did you try reseating the ribbon cables?
Going along with that, make sure they aren't off by one row.
And yes, you'll have to configure the jumpers for 6264 RAM.
https://www.pinwiki.com/wiki/index.php?title=Williams_WPC#Jumpers.2C_RAM_and_ROM_size
Quoted from antinea:I checked the ribbon cables a couple of times before posting the first message, so unless I'm really sloppy (could be!), that part should be ok.
It's usually best to check from different angles. sometimes if you're just looking at it from one side of the cabinet, you might not be able to see that it's off by one row in favor of the side you're on.
Quoted from antinea:Before I do anything stupid, would it be a good idea to desolder the ram, wait a few days for a socket to be delivered, and then do the job again? I mean, it should be easier and cleaner with a socket...
Whenever you replace a chip, it's always good practice to use a socket. If you fiddle too much with the pads/traces, they are likely to be damaged by the repeated soldering/desoldering.
Quoted from antinea:Also, since it'll be another week to get the resistor to switch to 6264, can it damage the ram/board if I power it with a 62256 configuration?
Personally, I wouldn't leave the game on the way it is. I don't know if it will damage the NVRAM or not, but I'd rather not chance it if it were my game.
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Minneapolis, MN