NEC NP905 Series Service Manual Supplement

NEC NP905 Series Service Manual Supplement

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LCD Projector

SERVICE MANUAL SUPPLEMENT
Better Service
Optical alignment jig (optical axis alignment/polarizer alignment)
Better Reputation
Better Profit
NEC DISPLAY SOLUTIONS, LTD.
MODEL VT60 Series
VT70 Series
VT80 Series
VT90 Series
NP3150 Series
NP3250 Series
VT700 Series
VT770 Series
NP905 Series
SAFETY CAUTION:
Before servicing this chassis, it is important that the service
technician read and follow the "Safety Precautions" and
"Product Safety Notice" in this Service Manual.
WARNING:
SHOCK HAZARD - Use an isolation transformer when servicing.
NP600 Series
NP610 Series
NP-M350X Series
NP-M420X Series
NP-M350XS Series
NP-P420X Series

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Table of Contents
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Summarization of Contents

Safety Precautions
Electric Shock and General Hazards
Warnings about electric shock, user-serviceable parts, and important literature.
Component and Servicing Safety Guidelines
Safety instructions for lamp, lens, wiring, servicing, and final inspection checks.
Optical Alignment Jig Kit Components
Jig Kit Introduction and Component Listing
Overview of the jig kit for optical alignment and the start of its component listing.
Additional Jig Kit Components
Further listing of connectors, FFC cables, and relay PWBs for the optical alignment jig kit.
Final Jig Kit Component Listings
Completion of the listing for relay PWBs and connectors in the optical alignment jig kit.
Optical Alignment Procedures and Kit Status
Jig Kit and Dummy Load Availability
Information on the availability and future discontinuation of jig kits and dummy loads.
Performing Optical Alignments
Instructions on performing optical axis and polarizer alignments using extension connectors and PWBs.

Table of Contents