User's Manual

Operator’s Manual ZM-940PA/941PA 73
Troubleshooting
Iftheproblemstillremainsaftercheckingthefollowing,contactyourNihonKohdenrepresentative.
Transmitter
Problem Cause Countermeasure
Nothing is displayed
on the LCD after
turning the power on.
Batteries are not installed
correctly. The battery polarity
is wrong.
Install the batteries correctly.
Batteries are completely
discharged.
Replace the batteries with new ones.
LCDisdifculttosee
(toodarkortoolight).
LCD brightness is not
appropriate.
Change the LCD brightness on the
SYSTEM SETUP screen. Refer to the
“Changing System Setup Settings”
section.
Nothing is displayed
on the monitor after
turning the transmitter
power on.
The channel of the transmitter
and monitor does not match.
Set the correct channel on the monitor.
The software version of the
multiple patient receiver is old.
Upgrade the multiple patient receiver
software to receive signal from the
transmitter. The software version must
be 01-09 or later.
Signal receiving
condition is poor.
Another transmitter of the same
channel is used nearby.
Turn the transmitter power off. If the
monitor still receives a signal, there is a
high probability that another transmitter
of the same channel is used nearby.
Follow the instruction of your
channel administrator and use another
transmitter of a different channel.
Signals are mixing. Follow the instructions of your
channel administrator and use another
transmitter of a different channel.
The transmitter is damaged. Contact your Nihon Kohden
representative.