Periodical Checks; Cleaning Of The Display; Connections; Chapter 5 Maintenance - Furuno FS-1503 Service Manual

Electrical Shock Hazard:
This equipment contains high voltages which can cause death at several
internal circuits. Any internal adjustment, servicing and repair shall only be
perfomed by qualified service personnel totally familiar with electrical circuits
and servicing of the equipment. A residual charge remains in capacitors and
other devices several minutes after turning off the power.
It is therefore essential to wait at least 3 minutes to allow residual charge to
subside before acceessing the inside of the equipment.

5.1 Periodical Checks

Regular maintenance is important for good performance. Before performing any mainte-
nance, turn off the power.

1) Cleaning of the display

Use a soft cloth with a slight amount of anti-static-charge spray. Do not use thinner and
benzene for cleaning.

2) Connections

Check connections on the main unit and the antenna coupler for loose connections. Poor
grounding on the antenna coupler decreases the output power from the antenna. The con-
nectors inside the unit are also checked at least every half year.
3) Insulators
Check for damage and salt deposits. Remove salt deposits with fresh water. Replace
damaged insulators.
4) Water leakage
Check the antenna coupler for water leakage.

Chapter 5 Maintenance

DANGER
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