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Chapter 4: Maintenance & Fault Finding 39
4 Maintenance & Fault Finding
Cleaning the display
CAUTION:
Take care when cleaning the display. Do not wipe the display
screen with a dry cloth as this could scratch the screen coating.
Do not use acid, ammonia based or abrasive products.
• Never use chemical or abrasive materials to clean the control unit.
If the control unit is dirty, wipe it with a clean, damp cloth.
• In certain conditions, condensation may appear inside the display
screen. This will not harm the unit, and you can clear it by
switching on the illumination for a short time.
EMC advice
• When powered up, all electrical equipment produces
electromagnetic fields. These can cause adjacent pieces of
electrical equipment to interact with one another, with a
consequent adverse effect on operation.
• To minimize these effects and enable you to get the best possible
performance from your Raymarine equipment, guidelines are
given in the installation instructions, to enable you to ensure
minimum interaction between different items of equipment, i.e.
ensure optimum Electromagnetic Compatibility (EMC).
• Always report any EMC-related problems to your nearest
Raymarine dealer. We use such information to improve our
quality standards.
• In some installations, it may not be possible to prevent the
equipment from being affected by external influences. In general
this will not damage the equipment but it can lead to spurious
resetting action, or momentarily may result in faulty operation.