Page 203 2
nd
Edition – Rev 0
34-20
POSITION DETERMINING – MAINTENANCE PRACTICES
3. GNS 530W PERIODIC MAINTENANCE
Repair of the unit is on condition of failure. There are no periodic maintenance requirements or
scheduled equipment calibration. At regular intervals the following can be performed:
Cleaning the Front Panel
Clean the front bezel, keypad, and display with a soft cotton cloth dampened with clean water. Do
not use any chemical‐ cleaning agents. Take care to not scratch the display surface.
Display Backlight
The display backlight lamp is rated by the manufacturer as having a usable life of 20,000 hours. The
backlight lamp may dim and the display may not perform as well in direct sunlight conditions over
time. The user must determine by observation when the display brightness is not suitable for use.
Contact Garmin when the backlight lamp requires service.
Battery Replacement
The unit has an internal battery used for the real time clock and GPS system information that will
last approximately 5/8 years. Regular planned replacement is not necessary. A ‘low battery’
message is displayed when replacement is required. Replace the battery within 1 to 2 months after
the low battery message is displayed. If the battery is not replaced and becomes completely
discharged, the unit will remain fully operational but the GPS signal acquisition time may be
increased.
The battery can be replaced by the field shop.
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