Omega Race PCB repair...should I give up?

ifkz

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So, it all started when I rescued an Omega Race PCB set from a lot of garbage boards I bought. I thought it was "fixable" and I wanted a spare for my dedicated game. I populated it fully, and eventually sent it out for repair. When I got it back, it worked for about 30 minutes and died. Using my good set, I narrowed the problem down to these three chips:
P8612 DM74ALS245AN
SN74532N
M3-7611-5 8035

The original repair thread: http://forums.arcade-museum.com/showthread.php?t=195390

It worked for about the same 30 minutes and died. I gave up....now I am wondering what I should do with it after $200 of sunk costs:
1. Keep it in the box for when my original dies
2. Spin the repair wheel again
3. Sell it broken

Thoughts are appreciated.
 
So, it all started when I rescued an Omega Race PCB set from a lot of garbage boards I bought. I thought it was "fixable" and I wanted a spare for my dedicated game. I populated it fully, and eventually sent it out for repair. When I got it back, it worked for about 30 minutes and died. Using my good set, I narrowed the problem down to these three chips:
P8612 DM74ALS245AN
SN74532N
M3-7611-5 8035

The original repair thread: http://forums.arcade-museum.com/showthread.php?t=195390

It worked for about the same 30 minutes and died. I gave up....now I am wondering what I should do with it after $200 of sunk costs:
1. Keep it in the box for when my original dies
2. Spin the repair wheel again
3. Sell it broken

Thoughts are appreciated.

!st don't give up 1st!

2) Get a few of the parts that you have mentioned and put with the board, Riptor has most of the parts.

3) take board and parts to a repair party and have someone help with the repair, help you repair or watch how they repair.

4) drink margaritas and talk about board repairs and how to do repairs.

74ls245..

https://www.twistywristarcade.com/search?orderby=position&orderway=desc&search_query=74ls245

SN74532N< *I suspect this is just a 74ls32n and the 5 is a typo>

https://www.twistywristarcade.com/search?orderby=position&orderway=desc&search_query=74ls32

M3-7611-5 8035
http://www.twistywristarcade.com/processors-40-pin-ics/635-8035-mpu.html
 
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They're socketed, so why not try it? Swap the PROM into your working set and then you'll know if it's good or not. For that matter, swap each of the three one by one to find out which one(s) are at fault. That's the beauty of having a second board.

Dead in what way? Totally = LS245. Plays blind = PROM. Error tones in self-test = 74LS32

Note that the original parts list calls for an 74LS32, not a 74S32. Might make a difference.
 
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