CARE AND MAINTENANCE OF AV DEVICES
Audio- Visual equipments are mostly sophisticated electronic equipments, and as such they must be handled with proper care and maintained regularly to ensure their proper functioning.
Usually, the sound systems are maintained regularly to ensure their proper functioning. Usually, the sound systems are maintained by outsourcing to contract maintenance.
The video units, LCD monitors, computer systems, projectors, cameras, etc. usually have some kind of warranty and service contract.
However, there must be some care in operating them and regular routine of cleaning them that greatly enhances the life and performance of the equipments.
LCD/ VIDEO PROJECTORS – Care and Maintenance
These projectors work with computers and have become extremely popular for making a presentation on a screen that was earlier done with overhead projectors(OHP) and slide projectors.
Projectors are very sophisticated equipments and great care is needed in operating them.
The start procedures are controlled through various control buttons on the projector and they need to be strictly followed in accordance to the instructions.
They produce a lot of heat ranging from 400 to 500 degrees. To remove this heat, cooling fans are installed within which contain filters. These filters need to be cleaned or changed through regular maintenance. If not done so, any dust particles in the projector can cause visual anomalies.
LCD/ VIDEO PROJECTORS – Care and Maintenance
Projector lens should be cleaned with isopropyl alcohol or a photographic lens cleaning solution. Apply the cleaning solution to a cloth and wipe the lens. Never apply the cleaning solution to the lens directly.
LCD projectors must be used at temperatures between 5 and 35 degrees Celsius.
Dust should be regularly blown off from the lens by means of a blower but from a safe distance.
Care and Maintenance of Computers and its peripherals
Computers and their peripherals are quite robust and reliable.
However, casual use of different components may lead to serious problems ranging from faulty and unreliable operations to complete stoppage of operation.
A few routine care and maintenance schedule can ensure trouble-free operation for a reasonable period of time.
But in case of serious problems, professional help should also be taken.
Care and Cleaning of LCD screens
Utmost care must be taken while dealing with LCD screens.
THE DO’S
- To remove stains on the screen, properly clean the display surface by gently wiping it with a lint-free cloth and glass cleaning agent.
- Avoid strong shocks and vibrations.
- Be sure to use and store LCD monitors within the specified temperature and humidity range.
- The screen should be turned off or brightness should be reduced to prevent ‘burn-in’, which is permanent damage to certain pixels in the LCD due to overheating.
THE DONT’S
- Do not place any heavy object on the laptop.
- Do not scratch, twist or hit the surface of the LCD screen.
- Do not spray cleaning liquid directly on to the screen.
- Do not let moisture accumulate.
- Never disassemble the LCD monitor, as the internal backlight assembly can retain a charge of 1000 V and may prove fatal.
- LCD screens should not be subjected to sudden temperature change.
