Another repair to look at this week but this one is a little bit different in that this Amiga 1200 motherboard has a dead short between VCC and GND, buy why?
This one sends me on a bit of journey but sure its all good practise.
Featuring clip from @RobSmithDev used with permission.
Robs videos on repairing a shorted 1200:
Part 1 - https://youtu.be/AsxjCiL8l0A?si=Pr76UBdANi3UNdaK
Part 2 - https://youtu.be/-jFgK8Pa1Yg?si=kR3shlLe-9QeWmT3
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Chapters
00:00 Intro
00:18 A look at the board
03:30 Shorted capacitor?
05:11 Is it the through hole caps?
06:41 Is it the surface mounted caps?
09:45 The plan to find a shorted ceramic.
11:50 Not quite to plan
13:20 Plan B
15:29 Filter?
17:29 Repairing the broken power trace.
17:52 Testing
22:02 Trying to repair the CPU slot
24:00 Wrap up