Read Panasonic PT-TW371R (serv.man3) Service Manual online
INF-9
SECTION 1 SERVICE INFORMATION
<TW371R>
2. 4. Cleaning
Cleaning with air spray
1. Remove the cabinet top according to SECTION 2 "Mechanical Disassembly".
2. Clean up the Optical block 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 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.
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.
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.
2. 4. 1. Cleaning the projection lens
Unplug the AC power cord before cleaning.
Gently wipe the projection lens with a cleaning cloth that con-
tains 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 clean-
ers, solvents or other harsh chemicals might scratch the
surface of the lens.
2. 4. 2. Cleaning the projector cabinet
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.
When the projector is not in use, put the projector in an appro-
priate carrying case to protect it from dust and scratches.
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.
Click on the first or last page to see other PT-TW371R (serv.man3) service manuals if exist.