Maybe a little background on how you got to this state would be helpful? Did you disassemble the refrigerator and misplace a part? Or disassemble and just forget how it went together?
Or maybe you took out an absorption refrigerator and are replacing it with a compressor type--and the new one came from a salvage yard or someplace?
You posted great pictures, but were a little ambiguous about what you are missing. There are three elements related to the compressor:
- The Inverter Printed Circuit Board Assembly (PCBA), seven wires
- Four wire harness to the Inverter PCBA
- Two wires from the Main PCBA
- Two wires from the Power Terminal Block (+ wire has fuse)
- Three wire harness from the Inverter PCBA, wires labelled U, V, and W.
The Power Terminal Block appears in the first two pictures. It has three screws labelled + (White wire), - (Blue wire), and GND (two yellow wires).
I am trying to distinguish the board you are showing in pictures. It has around 13 connections, and doesn't seem to have a display on it.
The Main PCBA has up to 29 Connections.
The Display PCBA has 8 connections.
The Inverter PCBA has four connections.
My guess is that:
The Main PCBA is in pictures 2-5.
The Display PCBA is not in the pictures.
The Inverter PCBA is missing or not in the pictures. Once you have it, it's a simple matter of plugging it in as shown in the excellent first picture.