Gorf and DK board repair

Darth Vader

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Anyone know who repairs Gorf PCB's anymore?

Also looking to get a 4 board Donkey Kong PCB as well.

Please let me know as they are the only two games I have that are not working. :)
 
I do DK, but haven't gotten my Kurz Kasch unit set up for Gorf yet. I have a boardset to repair and will one day get it on the bench.
 
I've just about stopped doing Gorf's (for non locals). I'm all out of those custom chips......and one (or more ) of them always seem to be bad.

Edward
 
I've just about stopped doing Gorf's (for non locals). I'm all out of those custom chips......and one (or more ) of them always seem to be bad.

Edward

I need to dig into all the parts boards I have in offsite storage. It has just been too $#$%@# hot this summer in Texas to do it! I have a few boards in there with some SC-01 speech chips that need to be tested.
 
I need to dig into all the parts boards I have in offsite storage. It has just been too $#$%@# hot this summer in Texas to do it! I have a few boards in there with some SC-01 speech chips that need to be tested.

At least you can still find the SC-01 chips.....albiet, expensive. It's the other three customs that kill you. Gorf, Wizard Of Wor, Space Zap, Robby Roto, Extra Bases, Sea Wolf II, and a few others I can't think of....all use the Astrocade hardware platform. Within that, you've got (true) custom data buss chip, address buss chip, and two additional (but identical) customs handling the input/output/audio. I would love for someone to reverse engineer these chips. Five years from now.....it's gonna be ugly for these games using these chips.

Edward
 
I have the "lines of death" problem on the gorf. Colors are also off with this issue. I think it is the RAM board, going off of what someone else had told me here.

I'd like to just get them all checked out and gone through.....Elutz, make room for a "non-local" and fix these up for me. :)

ON DK, the game plays but I have no motion sprites on the screen. If you fix these, Channel, let me know via PM and I'll send the set off to you for repair.

Thanks!
 
I have the "lines of death" problem on the gorf. Colors are also off with this issue. I think it is the RAM board, going off of what someone else had told me here.

I'd like to just get them all checked out and gone through.....Elutz, make room for a "non-local" and fix these up for me. :)

ON DK, the game plays but I have no motion sprites on the screen. If you fix these, Channel, let me know via PM and I'll send the set off to you for repair.

Thanks!

Yeah, I can look at it for you. Color issues could also be the little RGB board. I could probably do the Donkey Kong too, but those 4-board boardsets truely do suck to work on:).

Edward
 
Heh, I guess I won't send my spare DK cocktail board to you then :D Not that I had planned on getting it fixed anyway...I basically got it for nothing, untested. It partially works, but has holes in the girders and other garbage on the screen (and I think no moving sprites). As soon as Mario starts running, you fall thru the floor and clear the board. In demo mode, this locks up the game, because it doesn't know how to handle that.
 
Heh, I guess I won't send my spare DK cocktail board to you then :D Not that I had planned on getting it fixed anyway...I basically got it for nothing, untested. It partially works, but has holes in the girders and other garbage on the screen (and I think no moving sprites). As soon as Mario starts running, you fall thru the floor and clear the board. In demo mode, this locks up the game, because it doesn't know how to handle that.

The problem with the 4 board stack.......they can be soooooooo time consuming. For whatever reason, they seem to have tons of issues.

I've got one in the shop now.....it's been a bear. The CPU board and the CLK boards were both bad. All the IC sockets on the CLK board were covered in some oily residue. Replaced all the sockets hoping to get lucky...no go. All the IC sockets on the CPU board were covered with green corrosion. Replaced all those hoping to get lucky....no go. OK, time for real troubleshooting.......so far I've replaced six bad chips on the CLK board, and it's still not right. I haven't even revisited the CPU board, yet. These four board stacks have a tendency to turn into a major time suck.

Edward
 
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