Tektronix 2445B No Readout Display

[tec5c]

Hi all,

I recently got given a Tek 2445B with the fault description "No display" I ran it thinking that it meant no display at all and it was displaying the traces fine. I then tried to turn on the readouts and haven't been able to get them up.
Is there anyone here with knowledge of this bit of gear that has seen this fault before or would know of some places to check? I'm hoping it's not a discontinued IC at fault here...

Thanks in advance.

Edit: This is probably more suited to the 'Repair' section of the forum. My mistake.

[tautech]

Check out the very first post in the Repair board for the TEK scope repair pdf.