Cleaning The Exterior Of The Projector; Checking Cooling Liquid Level - Barco HDQ 2K40 User Manual

How to clean the lens?
1. Blow off dust with clean compressed air (or pressurized air cans
2. Clean with lens cleaner together with a clean lens cleaning cloth to remove the dust and contamination. Use big wipes in one
single direction.
Warning: Do not wipe back and forwards across the lens surface as this tends to grind dirt into the coating.
3. Use a dry lens cleaning cloth to remove left liquid or stripes. Polish with small circles.
4. If there are still fingerprints on the surface, wipe them off with lens cleaner together with a clean lens cleaning cloth. Polish again
with a dry one.
If smears occur when cleaning lenses, replace the cloth. Smears are the first indication of a dirty cloth.

16.4 Cleaning the exterior of the projector

W
ARNING
terminals and unplug the power cord at UPS INLET for removal of all power from the projector.
How to clean the exterior of the projector?
1. Disconnect the power to the projector mains terminals and unplug the power cord at UPS INLET for removal of all power from
the projector.
2. Clean the housing of the projector with a damp cloth. Stubborn stains may be removed with a cloth lightly dampened with a mild
detergent solution.

16.5 Checking cooling liquid level

W
ARNING
What should be done?
The projector is liquid cooled. It is important that the liquid level is checked at regular intervals. We advise to check every 3 months.
The liquid level must be between Min and Max Significant drop in liquid level indicates a major leakage and requires immediate
attention.
How to check the cooling liquid level?
1. Remove the left projector cover. See "Removal of the left cover", page 312.
2. Check the cooling liquid level in the reservoir.
5. Pressurized air cans are not efficient if there is too much dust on the surface, the pressure is too low
R5905303 HDQ 2K40 02/03/2015
:
Prior to start cleaning the exterior of the projector, disconnect the power to the projector mains
:
The procedure below may only be performed by "qualified service technicians".
5
) .
16. Maintenance
301