Wanted: Gorf PCB repair?

ThomasM

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Donor 2016
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Hi - I have an untested (likely not working) Gorf PCB set and I'd like to find someone that is able to test, troubleshoot, and fix? Would be super helpful so I can continue on a full Gorf restore project.

Thanks!
 
Your best bet is to find someone local that has a working Gorf so you can test each of your boards one by one to localize the problem. If you can't find anyone PM me. I have a test rig setup so if you ship me your boards I will test them for you. Repair is another story but if you want to start by determining which boards work/don't work you can go from there.
 
Your best bet is to find someone local that has a working Gorf so you can test each of your boards one by one to localize the problem. If you can't find anyone PM me. I have a test rig setup so if you ship me your boards I will test them for you. Repair is another story but if you want to start by determining which boards work/don't work you can go from there.

I was trying to get around to building a Gorf test harness. I'd love to see a few pictures so I don't reinvent the wheel.
 
I believe Mike, Road.runner on the forums here works on GORF boards...
 
Perhaps if I had a test jig but that would be a long wait. I'm not a professional repair guy, I just play one on KLOV. -Dave

Hahaha.

I have yet to start on my wizard of wor... Which shares some boards with gorf...

Can you test a gorf set in wor? I would think so... But i dunno
 
I was trying to get around to building a Gorf test harness. I'd love to see a few pictures so I don't reinvent the wheel.

Mine isn't really that clever. You can separate the DC wiring of the harness from the AC wiring pretty easily. Then I just made a switching power supply adapter and alligator clip in a speaker. The only issue with my test rig is that it is missing the wiring for the rank board only because I haven't been motivated enough to pin up the connector. The harness I have was hacked by the previous owner and that connector was cut clean off. I use this enough I should probably mount it all to a piece of plywood. I'll snap a pic next time I blow the dust off of it. I've been thinking of just making a JAMMA adapter and that would work a lot better in my setup. But of course my test rig does include your test ROM!
 
So the cpu boards and memory boards.

Which is weird... Commercial card rack... I wonder why


I have yet to really look into it...
 
... But of course my test rig does include your test ROM!

I was really proud of that until Mark Spaeth found it didn't catch all the memory errors and rewrote it in like 1 day. Must be nice to be that smart. Great for the community but kinda sad for me. I recently pulled mine from ionpool.net so people wouldn't get confused. You can find the Spaeth version there and would use it so any errors are caught. Ah, but you brought back some good memories.Thanks!
 
I was really proud of that until Mark Spaeth found it didn't catch all the memory errors and rewrote it in like 1 day. Must be nice to be that smart. Great for the community but kinda sad for me. I recently pulled mine from ionpool.net so people wouldn't get confused. You can find the Spaeth version there and would use it so any errors are caught. Ah, but you brought back some good memories.Thanks!

Actually I use both. IIRC in some cases yours displays the error message in a more readable format. Had something to do with the font I think but can't remember. The other trick I learned is that sometimes if you can't read the error because of graphics issues to pull the RAM card out of the stack and the background goes solid which makes it easier to read. These test ROMs are great. I repaired 16 RAM cards for a local operator a while back using nothing but this as a diagnostic tool.
 
The other trick I learned is that sometimes if you can't read the error because of graphics issues to pull the RAM card out of the stack and the background goes solid which makes it easier to read.

Well, you sure made me feel better! I should write a version that talks and tells you the error in case you can't read the screen. It's not that hard to make it talk. LOL

https://youtu.be/efwhMfpExZI
 
Hi - I have an untested (likely not working) Gorf PCB set and I'd like to find someone that is able to test, troubleshoot, and fix? Would be super helpful so I can continue on a full Gorf restore project.

Thanks!

I'm in the Sacramento area and can test the boards for you in my Gorf. I also have a spare board set that is semi working. PM me if you need my help.

Gorf is awesome, good luck!
 
Well, you sure made me feel better! I should write a version that talks and tells you the error in case you can't read the screen. It's not that hard to make it talk. LOL

https://youtu.be/efwhMfpExZI

awesome! how you do that? where's the source code? did you write it in C first?
then converted from C down to opcodes and placed the ML into hex bits on the rom images?
 
Hi everyone - just returning to this as I still haven't resolved getting my Gorf board set repaired. Anyone able to take this baby on or know of someone who can help? It's the last piece of my restoration puzzle!!

Thanks in advance.
 
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