Do you have a question about the NAIM ARMAGEDDON and is the answer not in the manual?
Place turntable in jig, secure tonearm, and turn unit upside down for access.
Remove platter, belt, subplatter, feet, and baseboard; cap the bearing.
Disconnect switch and motor wires; remove old board; mount new PCB on nylon mounts.
Secure new power lead using plinth clamp; connect motor wires following colour code.
Solder earth wire to chassis tag, form it correctly, and address motor bearing caps.
Turn turntable upright, replace components, follow setup, connect power, and switch on.