My system:
1. Research the specific problem (learn to search RGVAC and these forums)
Lots of problems are documented and have common failures. Some require simply replacing a chip and/or socket, reflowing solder, bad connectors, etc. You'll have to determine what level you can repair. The more you can do (even shotgunning), the better.
2. Decide to find a replacement board or repair (often replacement boards are a cheaper way to go)
3. Learn who fixes what boards:
- There are several guys here who can fix the common ones (Pacs, Asteroids, Centipede, etc.)
- Andre is good with Williams boards
- I think there's someone who works on the older B/W stuff around here
- It's hard to find people to work on (Atari System 1/2 stuff, Jamma, MCR stuff)
4. Keep non-working stuff and move on to other projects
