Step A - mark holes for mounting boards on cabinet to be installed in. Drill holes in cabinet and check fit!
Step 1 - Install all resistors
Step 2 - Install sockets for integrated circuits. Use masking tape to hold them to the board while soldering
Step 3 - Install mica and small poly caps
Step 4 - Install jumper pins
Step 5 - Install diodes
Step 6 - Install large poly caps and electrolytic caps
Step 7 - Install phono plugs or terminal strips
Step 8 - Install jumpers and any connectors
Step 9 - Mount board
Step 10 - Apply power and test.