I have been working on a friends M5120 Macintosh Portable and have been making slow but steady progress on bringing it back to life. The first step was a full system board recap. Then I discovered an open trace near the V1M module. Everything looks to be in working order except for the screen...
A friend of mine recently obtained one of these systems which initially did not work. The original power supply is dead so she researched and found a PowerBook battery can be used as a substitute. She also purchased a "rebuilt" battery as the original has long since passed. Initially it did not...