First, label every wire you see. Put a tag next to each connector that says what it’s supposed to do, even if the label looks silly. Then, grab a multimeter and check continuity between the source and the destination. If the line is broken, you’ll see a jump in resistance; if it’s shorted, you’ll see zero ohms. Work in sections—test the power feed, then the signal feed, then the ground plane. If a wire is tangled, straighten it out, trim any excess, and secure it with a zip tie. When you’re done, redraw the circuit diagram on a fresh sheet, labeling every component. That way, if something goes wrong again, you’ll know exactly where to look.

Thanks, but I’ll stick to the schematic. I’ll label every pin, test continuity, tighten with zip ties, and redraw the board. No room for wild improvisation unless it’s a neatly soldered patch.

Sure thing. I’ll tighten the wires, test everything, and when the board starts humming, I’ll label the final diagram and leave a note that says “Mission complete.”