Bypass or repair Cooker Hood circuit board?

Hi,

I have a cooker hood made/imported by PAB ltd UK (premium appliance brands). The model number is HDIG90SS. The company went bust last year and no-one seems to hold spares, I thought someone on here may be able to help.

A bulb blew and subsequently the fan still works but the lights do not. I opened it up hoping to find a fuse but all that connects the switches to the lights and fan is a small pcb.

There are a couple of resistors and transistors on the board, as I say the fan controls (four buttons, lots of wires are still working, but the lights do not respond to the switch.

Can anyone please suggest a way to either test the components on the board with a view to repairing it or alternatively how could I rig up the switch such that it would switch the 240v light supply (i.e. bypass the circuit board)?

Thanks