Simrad NSS12, Technical Manual

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Maintenance | NSS Installation Manual
Maintenance
Preventive maintenance
The NSS 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 always fit the supplied protective sun cover when the 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. Crystalized 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 the sun
cover be fitted when the unit is not in use for an extended period.
Cleaning the media port door
Clean the media port door regularly to avoid that salt crystallize on the surface, causing water
to leak into the card slot.
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.
Software upgrades
The latest software for the NSS will be available for download from our web site;
www.simrad-yaching.com .
Detailed instructions for how to install the software will follow the upgrade files.
For more details about software upgrades, refer to Software updates in Chapter 15.
Trouble shooting
Failure Corrective action
One or more functions do not operate as
normal Perform a back to factory as described in
“Restore defaults” in System Settings.
Normal operation is not possible and back
to factory does not fix the problem Switch off the unit, press and hold the
zoom in and out keys and switch on the
unit. Release the zoom keys after some 5-6
seconds. A second beep confirms the reset.
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