Raymarine i40 - Cleaning the Display Case; Cleaning the Display Screen

9.5 Cleaning the display case
The display unit is a sealed unit and does not require regular
cleaning. If it is necessary to clean the unit, follow this basic
procedure:
1. Switch off the power to the display.
2. Wipe the display with a clean, soft cloth (a microbre cloth is
ideal).
3. If necessary, use isopropyl alcohol (IPA) or a mild detergent to
remove grease marks.
Note: Do NOT use IPA or any other solvent or detergent on the
screen itself.
Note: In certain conditions, condensation may appear inside the
display screen. This will not harm the unit, and can be cleared by
powering on the display for a short time.
9.6 Cleaning the display screen
A coating is applied to the display screen. This makes it water
repellent, and prevents glare. To avoid damaging this coating, follow
this procedure:
1. Switch off the power to the display.
2. Rinse the screen with fresh water to remove all dirt particles
and salt deposits.
3. Allow the screen to dry naturally.
4. If any smears remain, very gently wipe the screen with a clean
microbre cleaning cloth (available from an opticians).
50 i40