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4-5

MODEL 2100 OVERHEAD PROJECTOR

COLOR TUNING CABLE

(Before Serial Number 422868)

NOTE

Tension in cable should be 3/16"
maximum.

A.

Raise the Top Cover Assembly by pulling
the Release Latch and lift up. (See
Figure)

B.

Turn the Color Tuning Knob clockwise to
the maximum.

C.

While holding the Cable Screw, loosen
the Cable Nut. Using pliers, pull the slack
out of the cable.

D.

Retighten Cable Nut and Screw. (See
Figure)

COLOR TUNING CABLE

(After Serial Number 422868)

No adjustment.

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Содержание 2100

Страница 1: ...100 Overhead Projector 78 6970 1335 3 9 92 3M Austin CenterBuilding A145 5N 01 Austin TX 78726 9000 Visual Systems Division Service Manual Order the M2100 Illustrated Parts Breakdown separately Stock 78 6970 4936 5 ...

Страница 2: ...n 3 Troubleshooting 3 1 Section 4 Adjustments 4 1 General 4 1 Tools Required 4 1 Projector Check out Facilities 4 1 Optical Alignment 4 3 Square Image 4 3 Focus Mechanism 4 4 Aligning the Fresnel Lens 4 4 Color Tuning Cable 4 5 Post Folding 4 6 Lampchanger Cable 4 6 Section 5 Electrical Diagrams 5 1 Section 6 Disassembly Re assembly 6 1 Projection Head Assembly Doublet 6 1 Projection Head Assembly...

Страница 3: ...e illustrated parts list ANGULAR BODY 2130 4130 2140 4140 2160 2170 ROUND BODY 2150 4150 2180 SPECIFICATIONS Physical Width 15 25 387mm Depth 20 25 514mm Post in upright position 26 25 667mm Post in folded position Height 7 75 197mm Body 30 75 781mm Maximum top of head Weight 22 lbs 10 0 Kg 2180 25 lbs 11 3 Kg 2130 2140 2150 2160 2170 4130 4140 4150 1 1 SECTION 1 INTRODUCTION ...

Страница 4: ...9 92 MODEL 2100 OVERHEAD PROJECTOR 1 2 ...

Страница 5: ...any screen size 1 0m x 1 0m 40 x 40 to 2 8m x 2 8m 110 x 110 Projection Head Tilt 0 20 All Heads Lamp Changer when lamp burns out switch to standby lamp Optical Lamp ANSI Code FNT 24 Volt 275 Watt Lamp Life 75 Hours 2130 2140 2150 2160 2170 2180 4130 41 40 4150 Illumination 2000 lumens typical 2100 lumens typical 1800 lumens minimum 1900 lumens minimum Mirrors Chassis mirror is second surface high...

Страница 6: ...ion and brightness specifications for the projector The stage glass provides a convenient flat surface for placing transparencies and other materials to be projected Because the light passes through the stage these projection materials must be transparent There are two 2 different projection head assemblies available for the projector One is an Open Triplet Head with focus correction which has a t...

Страница 7: ...he image to the screen elevation by moving the front projection lens upward or downward on the DOUBLET HEAD ASSEMBLY and the mirror on the TRIPLET HEAD ASSEMBLY See SECTION 2 OPERATION AND MAINTENANCE Figure 2 2 4 Place a transparency on the stage glass and focus the projected image by rotating the Focus Knob See Figure 2 3 5 To maintain top to bottom focus when the screen is not perpendicular to ...

Страница 8: ... KNOB 6 Rotate the Color Tuning Knob until the projected image is free of any yellow or blue corners To remove blue corners rotate the dial counterclockwise To remove yellow corners rotate the dial clockwise 7 Correct any vertical keystoning by tilting the screen until it is perpen dicular to the light beam axis Correct any horizontal keystoning by moving the projector until it is perpen dicular w...

Страница 9: ... METHOD 1 A red X will appear on the lamp symbol when that lamp is burned out Switch to the standby lamp The X will continue to light until the defective lamp is changed METHOD 2 A red X will appear between the two lamp symbols when a lamp is burned out Switch to the standby lamp The X will continue to light until the defective lamp is changed NOTE The Overhead Projector must remain on for 2 to 3 ...

Страница 10: ...ove the Top Cover Assembly by pull ing either one of two hinges outward until the hinge pin is out of the hole Slide the completeTopCoverAssemblyintheoppo site direction to release the second hinge and lift up and out See Figure 3 Loosen the four screws holding the Fresnel Lens in place NOTE Do not remove the screws 4 Turn the retaining clips off to one side 5 Remove the Fresnel Lens 6 All surface...

Страница 11: ...llation lubricate lightly the following area with Anderol No 757 Grease 3M Part No 78 8000 8079 4 For reference on the lubricating points see the three blow up parts lists Folding Post Assembly Lamp Changer Assembly Before S N 439180 Lamp Changer Assembly After S N 439180 Focus Assembly ...

Страница 12: ...anger is changer lever fully seated in the number one position Has another FNT lamp been tried Focus tension screw needs adjustment Is lamp burned out Is lamp of proper type See label on underside of top cover Is lamp properly seated down in its socket and vertical If unit is equipped with a lamp changer is changer lever fully seated in the number one position Is power cord plugged into electrical...

Страница 13: ...pped Loose tension cable Interlock switch out of alignment Cover latch movement is restricted High voltage Loose or broken wire connection to motor Defective fan motor Defective lamp sensing switch Defective power cord Defective Interlock Switch Replace Fuse Broken Wire Tighten cable See Section 4 adjustments Align interlock switch Disconnected or broken latch return spring Install Resistor Kit or...

Страница 14: ...creen should be vertical and can most easily be provided by applying a flat white paint to a 60 by 60 inch area of a smooth wall If a smooth wall is not available a piece of wallboard painted flat white or a white window shade of the proper size can be mounted in the selected area The test stand should be high enough to provide easy access to all parts of the Overhead Projector when the projector ...

Страница 15: ...t at which the cord is perfectly perpendicular to the wall 3 Mark the position of the stand on the floor and the projector on the stand so that the perpendicular relationship of the line from the projection lens to the wall is not lost while making subsequent adjustments 4 Using the mark on the wall as a base point measure 30 inches up down to the left and to the right Mark the edges of the result...

Страница 16: ...able Project an image onto a screen or wall Axis of beam must be perpendicular to projection surface B Check to see that side of projected image are vertical C If the image is not square remove CAP and loosen the three 3 Head Fastening Screws Doublet Head and move the projection head either to the left or right forward or backward When image is square tighten the center top screw first then the tw...

Страница 17: ...t is made ALIGNING THE FRESNEL LENS When replacing the Fresnel Lens use the following procedure A Remove the Top Cover Assembly See Section 2 Cleaning Stage Glass and Fresnel Lens page 2 3 B Place the Top Cover Assembly upside down on a flat clean surface C With the four 4 corner screws loosened stretch two rubber bands between diagonally opposite screws forming an X pattern See Figure D Center ci...

Страница 18: ...Raise the Top Cover Assembly by pulling the Release Latch and lift up See Figure B Turn the Color Tuning Knob clockwise to the maximum C While holding the Cable Screw loosen the Cable Nut Using pliers pull the slack out of the cable D Retighten Cable Nut and Screw See Figure COLOR TUNING CABLE After Serial Number 422868 No adjustment ...

Страница 19: ...wise to adjust POST 4 Re tighten SET SCREW NOTE POST SHOULD FOLD DOWN WITHOUT TOO MUCH FORCE 3 Bend down the appropriate LOCKING TAB LAMPCHANGER CABLE NOTE Tension on cable should be a maximum of 3 16 A Hold the Cable Nuts 2 with wrench and loosen the Cable Screws 2 B Move the screws with nuts outward to tighten cable C Retighten screws with nuts after adjustment is made See Figure Before Serial N...

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Страница 28: ...ng the four 4 corner clips and lens DO NOT REMOVE SCREWS Turn clips to side and remove lens NOTE When replacing the Fresnel Lens make certain the bow in the lens is in the convex upward position when projector is upright See Section 4 page 4 4 for proper alignment of Fresnel Lens PROJECTION HEAD ASSEMBLY DOUBLET 1 To disassemble Head Assembly from Head Support Bracket A Remove Screw Cap from Top S...

Страница 29: ...ing down and the 3M logo is in the lower left front corner 2140 2150 only 2130 does not have logo NOTE This drawing of Stage is up side down 6 Reassemble MASK and Fresnel Lens in reverse order as noted above FOCUSING ASSEMBLY 1 Remove knob 2 Before disassembling turn Adjusting Screw clockwise to loosen assembly 3 Remove the four A screws and cover All internal parts are now exposed 4 Before re ass...

Страница 30: ...ng the Tab 3 Install the new lens and bend the Tab back into place Caution Do not overtighten the tab The lens must have enough clearance for expansion There should be a 20 to 30 gap between the lens and lens bracket Illustration B Caution Be careful not to scratch or chip the lens while installing Illustration A Illustration B 020 Feeler Gage 020 to 030 Gap after installation Tab MODEL 2100 OVERH...

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