Dismantling Sony Facia

[BenW]

Hi, got a Sony XR-c7200r and the disaply works but doesn't light up. I understand this could just be a dud bulb. I've removed the screws from the rear of the facia and the pcb can be lifted on one side but not the other. It can't be lifted on the volume control side. Anyone know how i can remove the pcb?

Thanks
Ben