SEM 9900X Manual page 40

Copy was made but
did not debit the
Vend Station.
Copy was made but
did not debit the
Vend Station for the
proper amount.
W r ong c ha ng e
given back to the
customer.
40
No problem with harness,
connection OK, continuity
OK between green and
black wires when credit is
established in the Station.
Did one of the LED on the
expansion board
MCU?
Wrong price setting or
wrong copier type.
If the amount debited was
a multiple of one of the
prices (2 x A, 3 x A, the
same for B), the Vend
Station is probably detect-
ing more than one pulse
for one copy.
Wrong price setting or
wrong copier type.
Defective key counter plug
on copier.
copier.
If NO, there is a bad con-
of nection between the copier
and the 9900X.
where you are taking your
pulse from. Check harness
between copier and 9900X.
Red and white wires carry
the pulse on most copier
harness.
If harness and connections
are OK, the copier is not
sending the pulse on key
counter plug.
If YES, is the proper type of
copier programmed? Check
the pulse length. Make sure
it is not set too long. A long
pulse length will ignore all
pulses that are shorter that
the setting.
Vend price(s) set to $0.00.
MCU defective.
Adjust copier type first and
then adjust prices.
Make sure your connection
is secured. Check for the
pulse blind. If the blind is
too short and if the pulse
from the copier is bouncing,
Vend Station may see this
as a genuine pulse.
Adjust copier type first and
then adjust prices.
Problem is in
Check