Repairing battery damage on three motherboards: two 386 (486-ish) boards and one Mac Quadra 650
Автор: BigBadBench
Загружено: 2025-10-25
Просмотров: 354
Last weekend, I sold some stuff at MIT Swapfest... but I also made some purchases. When we looked closer at what I got, it turns out everything had issues:
https://www.youtube.com/live/BfosvfzO...
One of the Macintosh IIvx computers was actually a Quadra 650, but it had battery leakage.
There we two 386 motherboards (with 486 upgrade CPUs in them and a Sound Blaster 16) and both had battery damage.
One AT 386 motherboard is the PCChips/Hsin Tech M326:
https://theretroweb.com/motherboards/...
One AT motherboard is the Soyo 019J
https://theretroweb.com/motherboards/...
Let's do some trace repair to fix the two 386 boards and the Quadra 650.
Capacitor map for Delta SMP-120EB power supply:
https://drive.google.com/file/d/1TNrM...
Capacitor map for Astec AA16870 PSU:
https://drive.google.com/file/d/13tkV...
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