[time-nuts] Datum 9390-55114 frequency/IRIG time code generator manual?

[Mahlon Haunschild]

Hello list.  It's a shot in the dark, I know, but I thought I would ask
here anyway.

Does anyone know of a source for the manual for this?  It is very similar
to the 9390-52054 in most respects, and that manual is commonly available
on the Web.  The -55114 is different enough to make me want the correct
manual so that I don't have to reverse-engineer the board layout to fix
mine.

Mine really, really wants to work, but seems to have a problem in the
vicinity of U7 / U22 / U23; everything else seems to be in working order.

Best regards

Mahlon - N4ZK