Maintenance & Inspection; General Maintenance & Inspection - JRC JSS-2150 Instruction Manual

6. MAINTENANCE & INSPECTION
The performance and lifetime of the equipment depend on appropriate maintenance. This
chapter describes an outline of maintenance and inspection, self diagnosis and
troubleshooting.
6.1 General maintenance & inspection
In order to operate the equipment under optimum conditions, it is vital to perform regular
inspections and also, to keep accurate records. Inspections enable problems to be identified
before they become major malfunctions. The following inspections should be made regularly.
Inspection
Inspection item
sequence
1 Antenna system
2 RF GAIN function
Receiver condition
3
check by speaker output
4 Handset PTT switch
Transmission and
reception check by
5
performing radio
communication
Condition of the data
6
terminal
Check that antennas and the connectors are secure.
In the radiotelephone mode (TEL), turn the RF GAIN
control on the controller having access rights. Is the
radio static (noise) from the speaker adjustable?
Check that the voice level and noise level are not
abnormally loud or soft.
In the radiotelephone (TEL) mode, press the PTT
switch, and check that the unit transmits immediately
on the Tx meter or by
the screen.
In the radiotelephone (TEL) mode, check that normal
conversation is possible.
When the communication mode is other than the telex
mode (e.g. TEL mode), check that the communication
mode can be set to the telex mode by pressing the
Enter key on the keyboard of the data terminal.
Maintenance & Inspection
Procedure
TX and TXON displayed on
6-1