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Hi all, Picked up a Mac Portable 5120 (non-backlit) last week; before powering it up, I removed the logic board, removed the caps from it - all of them, except the tantalum cap on the hybrid board - cleaned the board, replaced the caps, and got a new black 6v 4.5ah brick battery. Putting it all back together, it won't boot off of the battery alone - the screen flickers, and it either hangs on a flickering mouse-pointer screen, or flips over to the chimes of death. With the original Macintosh Portable power adapter and new battery connected, it will boot 90% of the time. When it falls, it simply does nothing. Based on previous threads here, I'm suspecting the hybrid board. I did find one bad trace on there, which I have bridged, but no change. Wondering if anyone here has any ideas to help narrow down the next vector of attack. I want to test continuity on all of the hybrid board traces, but I lose some of them beneath ICs.