3M manual Model 2100 Overhead Projector

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Model 2100 (4100)

Overhead Projector

Service Manual

(Order the M2100 Illustrated Parts Breakdown separately - Stock # 78-6970-4936-5)

78-6970-1335-3

9/92

Visual Systems Division

3M Austin CenterBuilding

A145-5N-01

Austin, TX 78726-9000

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Contents Model 2100 Overhead Projector Technical Support Hotline 1-800-328-1371 U.S. & Canada Table of ContentsPhysical IntroductionModel 2100 Overhead Projector Mechanical Electrical 2130/2140/2150 2160/2170/2180 4130/4140/41Optical 2130/2140/2150 2160/2170/2180 4130/41 40/4150Principles of Operation Do not look in the front projection lens when lamp is on Operation and MaintenanceCUS Knob Method Mirrors Cleaning Stage Glass and Fresnel LensLamp Changer Assembly Before S/N After S/N Symptom Check CAUSE/SOLUTIONS TroubleshootingField Kits Available TroubleshootingAdjustments If floor or ceiling lines are not Optical Alignment Focus Mechanism Tension in cable should be 3/16 Maximum 924-5Post should Fold Down Without TOO Much Force Page Page Page Page Page Page Page Page DISASSEMBLY/RE-ASSEMBLY Stage Glass Focusing Assembly How to remove and install the condenser lens when equipped