Garmin GI 275 Maintenance Manual page 36

Item
Cleaning GI 275
Touchscreen
Display Backlight
190-02246-11
Rev. 1
Description/ Procedure
The display can be cleaned with a soft cotton cloth dampened
with clean water. DO NOT use any chemical cleaning agents.
Care should be taken to avoid scratching the surface of the
display.
Over time, the backlight lamp may dim and the display may not
perform as well in direct sunlight conditions. The user must
determine by observation when the display brightness is not
suitable for its intended use. Contact a Garmin authorized
repair station when the backlight lamp requires service.
GI 275 Part 23 AML STC Maintenance Manual
Interval
On Condition
On Condition
Page 3-5