Marantz CD4000 dim VFD display repair

We take a look at a Marantz CD4000 with a very dim display. Dim as in WAY too dim to read. If you jam your face up against the screen and switch the lights off you get something so it is 'working' but it is impossible to use. So what is to be done? Written up here: https://www.retroginger.com/marantz-c...