Sanyo PLC-XL40 Service Manual

Also see for PLC-XL40: Owner's manual

Contents

-51-CleaningCleaning with air spray1. Remove the cabinet top following to “MechanicalDisassemblies”.. Clean up the LCD panel and polarizing plate byusing the air spray from the cabinet top opening.Caution:Use a commercial (inert gas) air spray designed forcleaning camera and computer equipment. Use aresin-based nozzle only. Be vary careful not to damageoptical parts with the nozzle tip. Never use any kind ofcleanser on the unit. Also, never use abrasive materialson 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, polarizedglass, 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 cleanthe optical unit.disassembly CleaningDisassembly cleaning method should only be per-formed when the unit is considerable dirty and cannotbe sufficiently cleaned by air spraying alone.Be sure to readjust the optical system after per-forming disassembly cleaning.1. Remove the cabinet top and main units following to“Mechanical Disassemblies”.. Remove the optical base top following to “OpticalUnit Disassemblies”. If the LCD panel needscleaning, remove the LCD panel unit following to“LCD panel replacement”.3. Clean the optical parts with a soft cloth. Cleanextremely dirty areas using a cloth moistened withalcohol.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 kindof cleanser on these components.Since the LCD panel is equipped with an electroniccircuit, never use any liquids (water, etc.) to clean theunit. Use of liquid may cause the unit to malfunction.1 Disconnect the AC power cord before cleaning.2 First, remove the dust with a blower.Then gently wipe the lens surface. Use a lens clean-ing paper moistened with methyl alcohol (methanol).Avoid excessive use of cleaner.Do not use abrasive cleaners, solvents, or otherharsh chemical cleaners not to damage the lens.3 When the projector is not in use, replace the lens cover.! CAUtIoNThis projector is equipped with a plastic lens.Do not rub with hard fiber cloth or do not hit the lens with something hard to prevent the lens from scratching.Do not use chemical cleaner (liquid and solid) avoid deteriorating the lens.Projection Lens Cleaning