12-1
12. MAINTENANCE,
TROUBLESHOOTING
This chapter contains maintenance and troubleshooting instructions to help you keep
optimum performance and the longest possible life of the equipment. Before attempt-
ing any maintenance or troubleshooting procedure, please review the safety informa-
tion below. If you cannot restore normal operation after following the troubleshooting
procedures, do not attempt to check inside any unit; there are no operator-serviceable
parts inside. Refer any repair work to a qualified technician.
12.1
Maintenance
Check the items shown in the table below regularly to prevent unnecessary trouble.
Check item
Check point
Remedy
Display unit
Dust or dirt on the dis-
play
Wipe it carefully to prevent scratching. For difficult to re-
move dirt or salt deposits, use a cloth made wet with water
and neutral detergent (less than 1% detergent). Squeeze
the cloth dry then clean the display. When the display is
clean, gently wipe the display with a clean, soft, dry cloth,
to prevent scratching.
Antenna unit Loosened and corroded
bolts
Tighten loosened bolts. Replace heavily corroded bolts.
Antenna
cable
Connection point water-
tightness
Replaced damaged parts.
Connector tightness
and corrosion
Cable damage
Display unit
connectors
Connector tightness
Re-tighten if necessary.
Ground
terminal
Connection tightness
and corrosion
Replaced if corroded.
WARNING
ELECTRICAL SHOCK HAZARD
Do not open the equipment.
Only qualified personnel are
allowed to work inside the
equipment.
Do not apply paint, anti-corrosive
sealant or contact spray to coating or
plastic parts.
Those items contain organic solvents that
can damage coating and plastic parts,
especially plastic connectors.
NOTICE
