Precautions And Safety Notices - ViewSonic VA1703w-1 Service Manual

1. Precautions and Safety Notices

1-1. Appropriate Operation
(1) Turn off the product before cleaning.
(2) Use only a dry soft cloth when cleaning the LCD panel surface.
(3) Use a soft cloth soaked with mild detergent to clean the display housing.
(4) Disconnect the power plug from AC outlet if the product is not used for a long period of
time.
(5) If smoke, abnormal noise, or strange odor is present, immediately switch the LCD
display off.
(6) Do not touch the LCD panel surface with sharp or hard objects.
(7) Do not place heavy objects on the LCD display, video cable, or power cord.
(8) Do not use abrasive cleaners, waxes or solvents for your cleaning.
(9) Do not operate the product under the following conditions:
- Extremely hot, cold or humid environment.
- Areas susceptible to excessive dust and dirt.
- Near any appliance generating a strong magnetic field.
- Place in direct sunlight.
1-2. Caution
No modification of any circuit should be attempted. Service work should only be
performed after you are thoroughly familiar with all of the following safety checks and
servicing guidelines.
1-3. Safety Check
Care should be taken while servicing this LCD display. Because of the high voltage
used in the inverter circuit, the voltage is exposed in such areas as the associated
transformer circuits.
1-4. Power Supply Requirements
The external AC power operating range shall be from 90 to 264Vac
1-5. LCD Module Handling Precautions
1-5-1. Handling Precautions
(1) Since front polarizer is easily damaged, pay attention not to scratch it.
(2) Be sure to turn off power supply when inserting or disconnecting from input
connector.
(3) Wipe off water drop immediately. Long contact with water may cause discoloration or
spots.
(4) When the panel surface is soiled, wipe it with absorbent cotton or other soft cloth.
(5) Since the panel is made of glass, it may break or crack if dropped or bumped on hard
surface.
(6) Since CMOS LSI is used in this module, take care of static electricity and insure
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