Read Panasonic PT-TW342 / PT-TX402 / PT-TX312 (serv.man2) Service Manual online
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Maintenance
Cleaning
Cleaning the projection lens
Unplug the AC power cord before cleaning.
Gently wipe the projection body with a soft dry cleaning cloth. When
the cabinet is heavily soiled, use a small amount of mild detergent and
finish with a soft dry cleaning cloth. Avoid using an excessive amount
of cleaner. Abrasive cleaners, solvents or other harsh chemicals might
scratch the surface of the cabinet.
the cabinet is heavily soiled, use a small amount of mild detergent and
finish with a soft dry cleaning cloth. Avoid using an excessive amount
of cleaner. Abrasive cleaners, solvents or other harsh chemicals might
scratch the surface of the cabinet.
When the projector is not in use, put the projector in an appropriate
carrying case to protect it from dust and scratches.
carrying case to protect it from dust and scratches.
Cleaning the projector cabinet
Cleaning with air spray
Remove the cabinet top following to "Mechanical Disassembly". Clean up the Optical block and polarizing plate by
using the air spray from the cabinet top opening.
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 very careful not to damage optical parts with the nozzle tip. Never use too much cleanser on the
unit. Never use abrasive cleaner, solvent or other rough chemical that may scratch the cabinet surface.
Use a commercial (inert gas) air spray designed for cleaning camera and computer equipment. Use a resin-based
nozzle only. Be very careful not to damage optical parts with the nozzle tip. Never use too much cleanser on the
unit. Never use abrasive cleaner, solvent or other rough chemical that may scratch the cabinet surface.
Disassembly Cleaning
Disassembly cleaning method should only be performed when the unit is considerable dirty and cannot be
sufficiently cleaned by air spraying alone.
Be sure to readjust the optical system after performing disassembly cleaning.
sufficiently cleaned by air spraying alone.
Be sure to readjust the optical system after performing disassembly cleaning.
1. Remove the cabinet top and main unit following to "Mechanical Disassembly".
2. If the Optical block needs cleaning, remove the Optical block unit following to "Optical block replacement".
3. Clean the optical parts with a soft cloth. Clean extremely dirty areas using a cloth moistened with alcohol.
2. If the Optical block needs cleaning, remove the Optical block unit following to "Optical block replacement".
3. Clean the optical parts with a soft cloth. Clean extremely dirty areas using a cloth moistened with alcohol.
Caution:
The surface of the optical parts consist of multiple dielectric layers with varying degrees of refraction.
Never use organic solvents (thinner, etc.) or any kind of cleanser on these parts.
Since the Optical block is equipped with an electronic circuit, never use any liquids (water, etc.) to clean the unit.
Use of liquid may cause the unit to malfunction.
The surface of the optical parts consist of multiple dielectric layers with varying degrees of refraction.
Never use organic solvents (thinner, etc.) or any kind of cleanser on these parts.
Since the Optical block is equipped with an electronic circuit, never use any liquids (water, etc.) to clean the unit.
Use of liquid may cause the unit to malfunction.
Unplug the AC power cord before cleaning.
Gently wipe the projection lens with a cleaning cloth that contains
a small amount of non-abrasive camera lens cleaner, or use a lens
cleaning paper or commercially available air blower to clean the lens.
a small amount of non-abrasive camera lens cleaner, or use a lens
cleaning paper or commercially available air blower to clean the lens.
Avoid using an excessive amount of cleaner. Abrasive cleaners,
solvents or other harsh chemicals might scratch the surface of the
cabinet.
solvents or other harsh chemicals might scratch the surface of the
cabinet.
After long periods of use, dust and other particles will accumulate on the Optical block, prism, mirror, polarized
glass, lens, etc., causing the picture to darken or color to blur. If this occurs, clean the inside of the Lighting block.
Remove dust and other particles using air spray. If dirt cannot be removed by air spray, disassemble and clean
the Lighting block.
glass, lens, etc., causing the picture to darken or color to blur. If this occurs, clean the inside of the Lighting block.
Remove dust and other particles using air spray. If dirt cannot be removed by air spray, disassemble and clean
the Lighting block.
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