Simrad GN70, Operator And Installation Manual

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Maintenance | GN70/MX610/MX612 Operator and Installation Manual
Maintenance
Preventive maintenance
The GN70/MX61x display and antenna unit does not contain any field serviceable
components, therefore the operator is required to perform only a very limited amount of
preventative maintenance.
It is recommended that you use an optional protective sun cover when the display unit is not
in use.
Simple maintenance procedures
Cleaning the display unit
The supplied cleaning cloth should be used to clean the screen, where possible. Use plenty of
water to resolve and take away salt remains. Crystallized salt may scratch the coating if using a
damp cloth. Apply minimal pressure to the screen.
Where marks on the screen can’t be removed by the cloth alone, use a 50/50 mixture of warm
water and isopropyl alcohol to clean the screen. Avoid any contact with solvents (acetone,
mineral turpentine etc.) or ammonia based cleaning products, as they may damage the anti-
glare layer, plastics bezel, or rubber keys.
To prevent UV damage to the plastic bezel and rubber keys, it is recommended that sun cover
be fitted when the unit is not in use for an extended period.
Checking the keys
Make sure that no keys are stuck in the down position. If one is stuck, wiggle the key to free it
back to normal.
Checking the connectors
The connectors should be checked by visual inspection only.
Push the connector plugs into the connector, if the connector plugs are equipped with a lock;
ensure that this is in the correct position.
Trouble shooting
Failure Corrective action
Unit fails to turn ON Make sure the power cable is plugged in to the back of
the GN70/MX61x and the 12-24 VDC power is turned
ON. The unit normally takes about 30 seconds to re-boot
when power connection is removed and re-connected.
Check the in-line fuse (or circuit-breaker) of the power
cable. Replace the fuse when blown.
Using a voltmeter, verify that the 12-24 VDC supply is
present on the power cable connector pins.
If problem persist, replace the GN70/MX61x unit.
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