Epson EMP-7300, Руководство по обслуживанию

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2-4
REV.A
Caution:
Take care not to cause any shock or mechanical stress to the optical engine and also
not to disassemble it. Otherwise, the pixel divergence may occur.
The alignment adjustment for each other is applied in the factory, and also electrical
correction is applied with CD10DR board according to the each optical engine.
Therefor do not separate or exchange the each unit to the others.
Table2- 1 Unit function
UNIT NAME FUNCTION & REMARKS
LAMP INNER HOUSING Include one UHE LAMP as a light source.
CD10FU board is mounted for lamp inner housing detection.
LIGHT GUIDE UNIT Disperse the light from the light source and uniform by the lens array A/B.
(Ultraviolet ray also eliminated.)
Disperse the light in three (R/G/B) factors, with condensor lens and mirror.
OPTICAL HEAD/
PRISM UNIT Consist of three light valves, polarization plate and prism unit.
Each light valve controls shutter of pixels with twelve levels.
Prism unit composes R/G/B optical signals and transfers to the projection lens
unit.
Caution:
Exhaust fan, Light guide unit ,Optical head /Prism unit, Projection lens unit and
CD10DR board are treat as one parts named Optical engine.