-10-
Cleaning
cleaning with air spray
1. Remove the cabinet top following to “Mechanical Dis-
assemblies”.
. Clean up the LCD panel and polarizing plate by using
the air spray from the cabinet top opening.
caution:
Use a commercial (inert gas) air spray designed for
cleaning camera and computer equipment. Use a resin-
based nozzle only. Be vary careful not to damage optical
parts with the nozzle tip. Never use any kind of cleanser
on the unit. Also, never use abrasive materials on the
unit as this may cause irreparable damage.
After long periods of use, dust and other particles will accumulate on the LCD panel, prism, mirror, polarized glass,
lens, etc., causing the picture to darken or color to blur. If this occurs, clean the inside of optical unit.
Remove dust and other particles using air spray. If dirt cannot be removed by air spray, disassemble and clean the
optical unit.
disassembly cleaning
Disassembly cleaning method should only be performed
when the unit is considerable dirty and cannot be suf-
ficiently cleaned by air spraying alone.
Be sure to readjust the optical system after perform-
ing disassembly cleaning.
1. Remove the cabinet top and main units following to
“Mechanical Disassemblies”.
. Remove the optical base top following to “Optical Unit
Disassemblies”. If the LCD panel needs cleaning, re-
move the LCD panel unit following to “LCD panel re-
placement”.
3. Clean the optical parts with a soft cloth. Clean ex-
tremely dirty areas using a cloth moistened with al-
cohol.
caution:
The surface of the optical components consists of mul-
tiple dielectric layers with varying degrees of refraction.
Never use organic solvents (thinner, etc.) or any kind of
cleanser on these components.
Since the LCD panel is equipped with an electronic cir-
cuit, never use any liquids (water, etc.) to clean the unit.
Use of liquid may cause the unit to malfunction.
Maintenance
Содержание PLC-WXU30
Страница 65: ... 65 IC Block Diagrams FA7701 DDC Control IC5751 AN5870 Signal Switch IC5201 ...
Страница 66: ... 66 IC Block Diagrams FA7711 DC DC Converter IC5801 FA5502 P F Control IC601 ...
Страница 67: ... 67 IC Block Diagrams L3E06150 D A S H LCD Driver IC501 IC531 IC561 HIN202EIB RS 232C Driver IC3801 ...
Страница 68: ... 68 IC Block Diagrams L3E01060 Level Shift IC2501 IC2531 IC2561 L3E07111 LCD Driver Gamma Correction IC401 ...
Страница 69: ... 69 IC Block Diagrams LM4889 Audio Output IC5031 NJW1156 Audio Control IC5001 ...
Страница 70: ... 70 IC Block Diagrams PW190 Scaler IC301 STR Z2156 Power OSC IC651 ...
Страница 71: ... 71 IC Block Diagrams TE7783 Parallel I O Expander IC1802 ...
Страница 107: ...KB3 WXU3000 107 Mechanical Parts List 527 528 L13 L09 L01 L17 L06 L18 L12 L08 L05 L07 In the Optical Unit L10 L13 ...
Страница 109: ...KB3 WXU3000 109 Mechanical Parts List ...
Страница 110: ... KB3AC MAR 2008 DC 300 Printed in Japan SANYO Electric Co Ltd ...
Страница 130: ...A18 PCB_KB3AC ...