Maintenance & Inspection; General Maintenance & Inspection - JRC JHS-800S Instruction Manual

6. MAINTENANCE & INSPECTION
The performance and lifetime of the equipment depend on the appropriate maintenance.
This chapter describes the maintenance and inspection, self diagnosis, and outline of
adjustment.
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 items
sequence
1 Antenna system
2 Squelch operation
Receiver condition
3 checked by speaker
output.
4 Handset PTT switch
Transmission and
reception checked by
5
performing radio
communication.
Check that antennas and the connectors are secure.
Turn the SQL control on the device with access right
fully counterclockwise. Check for noise from the
speaker.
Check that the noise is suppressed by turning the SQL
control clockwise.
Check that the voice level and noise level are not
abnormally loud or soft.
Press PTT and check that the
the screen and the unit transmits immediately.
Check that normal conversation is possible.
Maintenance & Inspection
Procedure
TX mark is displayed on
6-1