JVC Model 200 - Manual (Page 97)

Chapter 3 Service Adjustments
3-18 Model 200 Service Manual
Projection Lens: Use lens paper and wipe the lens clean in a
vertical motion from top to bottom. Use compressed air to blow
excess dust from the lens. An optical lens cleaning solution can
also be used to remove finger smudges.
ILA
®
Assembly: Clean the ILA
®
assembly faces with compressed
air only. Do not wipe the ILA assembly faces.
CRT Faces: Use compressed air to blow dust off and lens paper
to clean face.
Relay Lens: Same as Projection Lens.
Mirrors and Polarizing Beam Splitter Windows: The Optical
Shield covers the Dichroic Mirror Assembly (X-Frame) and
Polarizing Beam Splitter windows. Normal cleaning is not required.
Clean only if absolutely necessary using compressed air. Do not
wipe mirrors.