2016A
SCAN DEFEAT DURING XMIT FOR KDK 2016A

Anyone with a KDK-2016A has either fixed this or learned to live with
it, but here goes anyway:

The 4-channel memory scan on the KDK 2016A is designed to be active
whenever a) the memory channel switch is in the "scan" position and b)
when the RCV LED on the front panel is not lit.  To keep the receiver
tuned to an active channel once it's hit, the same signal that drives
the RCV light is picked off on its path via a white/yellow wire from
P24 of the main board to the display unit; the signal also goes to P9
on the synthesizer unit, where it is RC shaped and fed to the base of
Q12, whose collector circuit stops the scan when the LED comes on.

The problem is this: if you decide to talk to someone you hear on an
active scanned channel -- and forget to first move the switch from
the scan position -- as soon as you key the mike, the RCV LED goes out
(doesn't that make sense?) and bingo! scanning begins again.  The
effect of this is to spread yourself around a bit -- 1/3 sec on one
channel, 1/3 on another.... Kind of a primitive "spread-spectrum" but
not guaranteed to win friends on the other repeaters you may have in
memory.  If you notice the frequencies flashing by on the display, you
can catch this in time to save yourself some embarrassment, but there
is another workaround.  I installed this mod about ten years ago, and
it's still doing fine.
CONTINUED IN FILE 2016A.1