Teac micro HiFi (Cramond EH4)

Teac Micro Hi-Fi system MC-DX220i
A faulty mini HiFi system. It uses flat panel speakers and subwoofer, unfortunately one of the flat panel speakers is missing.
The system does not switch on. The subwoofer connects to the mains and has the amplifier for all the speakers. The control unit connects to the subwoofer with a propriety connection cable. Some of the pins in the cables connectors were bent but I have straightened them. One of the photos shows the connectors.
The power light on the subwoofer does not switch on. The internal fuses appear ok.