Newbrain Display

[Tony Duell]

> 
> Near to the Nec FIP display in the Newbrain computer there is a little
> circuit with a componet with 10 pins where you can read:
> 
>    27
> CD-1867N
>   TDK
>  JAPAN

I haev the official Newbrain scheamtics here....

That component is probably a transformer. The module it's part of is a 
DC-DC converter to run the display. It has, apparently, 7 connections : 

1) +5V input
2, 5) linked together, seem to be a -ve output (22uF to ground
3) Output,also -ve (22uF togoround, also goes to Vbb on the DS8881, and 
   the pull-downs on the segment (anode) leads)
4,6 ) Heater outputs to the display

> 
> Somebody know what is this component? I think it is used to control voltage
> supplied to de display.
> 
> Somebody have the NEC FIP16A5R datasheet? It is the 16 character display in
> the Newbrain AD

I can at least tell you : 
Heater : 1,37
Grids (digit select) : 3,5,7,9,14,16,18,20,22,24,27,29,31,33,35
Anodes (segments) : 4,6,8,10,13,15,17,21,23,25,28,30,32,34

-tony