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  1. Hi Guys! I am working on a MPU4 which i pulled from my dad's machine recenlty. The battery leaked, but it seems in pretty decent shape. Some of the BZY88 4v7 diodes are looking really bad, the caps look not so happy, and the transistors near it will be getting preventive maintenance. Problem #1, is diode orientation. I can read a bit of schematic, but translating it into a PCB poses a tiny problem The acid ate at the diodes and i cannot tell properly how they should be placed. Where does the banded side go? I included an image of the PCB area for reference: Some of them i can see and make the guess that the banded side sits at the top. As in the pic, these are my guesses: 1? 2? 3T 4? 5? 6T 7T 8T Other than the many dried out solder joints i do not see too much damage. The tracks below the battery look pretty decent as well. Just to replace these damn diodes..
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