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Barco - RHDM-2301 - User manual 219
Addendum
7.9 Cleaning instructions
Before cleaning:
• Switch off the display unit.
• Remove the power cord from the mains.
Cleaning the LCD screen:
• Wipe the screen surface with a soft cleaning cloth.
• To remove stains, use a damp cloth with non-aggressive cleaning products:
Do NOT use abrasive cleaning agents, glass cleaner or tissue paper.
Do NOT use alcohol/solvents at higher concentration > 5%.
Use non-aggressive cleaning products (water or a solution of distilled water and IsoPropyl
Alcohol).
• Do not rub or push on the LCD screen. Rubbing with tissue can degrade the performance of the
LCD screen.
Cleaning the cover:
• Use a soft cloth to remove dust. If necessary, a vacuum cleaner can be used to clean the venti-
lation openings.
• Use a damp cloth (if necessary with some mild detergent) to remove stains.
• Do not use a scouring pad, or other tools that my scratch and damage the cover.
• Do not use strong detergents such as alcohol and thinner.
7.10 Troubleshooting
7.10.1 How to use the troubleshooting
When the display unit is not working properly or the operation instructions do not solve the
problem, the troubleshooting may allow the user to identify the source of the problem.
The fault finding trees are divided into three structures. They should be checked according to the
problem observed by the user:
• “No power” fault finding tree: The display unit does not seem to be powered. No LEDs are burn-
ing and nothing is observed on the screen. The fans are not working.
• “Nothing observed on the screen” fault finding tree: The display unit is powered but no image is
shown on the screen.
• “Verify input signal” fault finding tree: The display unit works correctly, but the applied input sig-
nal is not recognized or not displayed on the screen.