ViewSonic N4200w-1 VS10945-1M Service Manual page 5

1.3 Service Notice
1. When replacing parts or circuit boards, clamp the lead wires around terminals before soldering.
2. When replacing a high wattage resistor (more that 1W of metal oxide film resistor) in circuit board, keep
the resistor about 5mm away from circuit board.
3. Keep wires away from high voltage, high temperature components and sharp edges.
4. Keep wires in their original position so as to reduce interference.
1.4 LCD TV Handling Precaution
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 glasses, 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 ensure human earth when
handling.
(7)Do not open nor modify the Module Assembly.
(8)Do not press the reflector sheet at the back of the module to any directions.
(9)In case that if a Module has to be put back into the packing container slot after once it was taken out from
the container, do not press the center of the CCFL Reflector edge. Instead, press at the far ends of the CFL
Reflector edge softly. Otherwise the TFT Module may be damaged.
(10)At the insertion or removal of the SIGNAL Interface Connector, be sure not to rotate nor tilt the
Interface Connector of the TFT Module.
(11)After installation of the TFT Module into an enclosure (LCD TV housing, for example), do not twist nor
bend the TFT Module even momentary. At designing the enclosure, it should be taken into consideration
that no bending/twisting forces are applied to the TFT Module from outside. Otherwise the TFT Module
may be damaged.
(12)Cold cathode fluorescent lamp in LCD contains a small amount of mercury. Please follow local
ordinances or regulations for disposal.
(13)Small amount of materials having no flammability grade is used in the LCD module. The LCD module
should be supplied by power complied with requirements of Limited Power Source (IEC60950 or UL1950),
or be applied exemption.
(14)The LCD module is designed so that the CFL in it is supplied by Limited Current Circuit (IEC60950 or
UL1950). Do not connect the CFL in Hazardous voltage Circuit.
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