Tempest schematic error?

I was working on one of the boards today and noticed something odd.
According to DP-190-03 2nd printing
Sheet 3 side A
 
!Latch 1 runs to all the LS194's used as part of the Vector-Generator Data
Shifter. This should go to pin 1 on each (D5, D6, E5, H5, H6 & F5)
 
But as I was probing all the chips to ensure they were getting signal (I am
not getting any vectors out on this board). I found that Pin 1 on F5 is not
getting toggled like the rest are. Figured that it was a broken trace
somewhere. But in looking over the board I can't see any problems in that
area. I check continuity between F5:1 and any of the others and get
nothing. But it is there between all the others.
 
I then checked this on a known good board. Same thing. F5:1 does not
connect to the others.
 
Anyone else noticed this? Or have any idea what F5:1 should connect to?
 
Thanks,
David

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Received on Fri Nov 27 01:05:32 2009