The BC9000 user manual doesn't quite make it clear enough to tell owner's to check the switch on the bottom of the BC9000 cabinet.
There is a slide switch underneath with two positions - DIN and Line.

Have you tried both of those positions and checked the results?

-sonavor

Yes, it's positioned at Line. Changing the position doesn't give me any readings on the level meters. 
Though for all I know it might be worth mentioning that switching between them gives me a tiny blip on the lovest level reading, a quick flash at the far left of the meter that's marked "20." 

The level meters work like a charm on playback, so it's not just a case of faulty leds or something to that effect. 

I have tried using both the Beogram and apple airport as source, that doesn't make a difference either. 

Are you confident that the cable for the Beocord and Beomaster is a good cable?  Also that it is one designed for Tape, not CD or Phono.

No setting of the L & R record volume sliders make a difference?

-sonavor

Well, no, not really. As it is in fact the cable that connected the Beogram CD5500 to the Beomaster 5500 that I'm using. I was labouring under the illusion that 7 pin DIN is 7 pin DIN and that it should be ok since play worked. It works as it should connected to the CD5500, but if there's a difference to them then that doesn't mean a thing. 

I'll see if I have another spare in the house and give that a shot, it's certainly worth a try. 

Fingers crossed that might do the trick. 

Cheers! 

Robert

Tried with a different (though old) 7 pin din cable, the level meters are still completely blank whilst attempting to record. I'll have to sleep on this and hope that clears my head because right now I'm fairly certain something got shaken loose during transport from the UK to Norway and it needs someone with the proper skills and equipment to look at it. 

But the cable is a B&O Tape type cable, right?
Because a B&O Phono cable (i.e. for a Beogram 8002) is also a 7-pin DIN cable but it will not work for a Beocord 9000.
All 7 pins will be present in the cable but it won't have the wiring for the tape recording channels.

Ah, when you put it that way .. I'm positive one of the cables is in fact a phono cable, as I pilfered it off the Beogram 8002 in my other system. And for all I know the other is a Beogram type cable as well.
So, sonavor for the win! And I'm off to sounds heavenly to get sorted. 

Thanks!