Sega drive boards for Power Drift, Galaxy Force & G-loc

pat9000

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Sega drive boards for Power Drift, Galaxy Force & G-loc

So I'm working on a Power Drift DX that doesn't want to move.. I know the culprit is just the drive board as the motor PSU, FET driver & motor (brushes) are good -- it will do a partial power-up test with any drive board installed, but game motion and test menus do not operate.

I also need to make sure it has the right FET driver though (the motor driver board with the single large cap) -- the cap will have a sticker with the part number, or the manual will mention it (PD DX manual is seemingly not online). Is it the 400-5084 or 400-5084-01? Easier way to tell is the 2-pin molex connector on the -01 will be red. White on the other board; they look identical.

The confusion lies in the fact that the previous owner had a lot of extra boards from different games and swapped boards & ICs around trying to get this going, and I'm not sure what is supposed to be in there as I have 3 different revs of main boards, 3 EPROM types, and 2 PAL types between all these boards. Basically, I'd like to know the drive board part number, the EPR number the ROM, and the number on the 2 PALs, on PD & Gloc drive boards.

I know that Galaxy Force is 839-0161, EPR-11707 or 11707A, and the PALs are 315-5327. I found an old klov post mentioning that the 839-0213 board is PD.

so, I'm GUESSING:
Power Drift is 839-0213 board (seems identical to the -0161), EPR-11485 ROM, 315-5327 PALs

Gloc is 839-0341 board (not fully populated version of the -0161), EPR-11830 ROM, 315-5331 PALs

If you have a PD or GLOC DX, could you look at the drive board and confirm the board, EPR & PAL numbers (the PALS are the two identical socketed 20-pin ICs)? I'll update this list so it'll be archived, since this info doesn't seem to be out there anywhere. PD drive board sits on top of the main board cage.

Even better: if you have a burner, back up the EPROM since these aren't in MAME sets.

Thanks!

segadriveboards.jpg
 
I have a fully functioning power drift dx, I can take a look tonight and take pictures. I also have a original power drift dx manual if you need me to copy pages I can, I can also try and see if I can have the book copied.
 
If one of the Houston guys have a eprom reader/burner we can pull it apart and get the eproms dumped.
 
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