Maintenance & Troubleshooting; Preventive Maintenance - Furuno DS-50 Operator's Manual

MAINTENANCE & TROUBLESHOOTING

Preventive Maintenance

Monthly checks
Check the following monthly:
• All connectors and cables are securely connected.
• Check ground of main display unit and processor unit for rust. Clean if necessary.
• Check that power voltage is within prescribed rating.
• Conduct the diagnostic program.
Cleaning
Display unit
Dust and dirt may be wiped off the main display unit with a soft cloth. Mild detergent may be
used if necessary. Do not use chemical cleaners to clean the unit—they may remove paint and
markings.
Transducer
Marine life (barnacles, etc.) on the transducer can cause a considerable drop in sensitivity.
When the ship is docked, carefully remove any marine life from the transducer. Paint the trans-
ducer yearly with Marine Star 20C (no other paint allowed) anticorrosion paint.
WARNING
Do not open the equipment.
High voltage which can shock,
burn or cause serious injury
exists inside the equipment.
Do not work inside the equip-
ment unless familiar with
electrical circuits.
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