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Model 2100 (4100) Overhead Pr ojector 78-6970-1335-3 9/92 3M Austin CenterBuilding A145-5N-01 Austin, TX 78726-9000 Visual Systems Division Ser vice Man ual (Order the M2100 Illustrated Parts Breakdown separately - Stock # 78-6970-4936-5)[...]
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9/92 MODEL 2100 OVERHEAD PROJECTOR TITLE PAGE NUMBER TABLE OF CONTENTS T echnical Suppo r t Hotline - 1-800-328-1371 ( U .S . & Canada) Section 1 - Introductio n ................................................................................ . 1-1 Specification s ............................................................................. . 1[...]
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9/92 MODEL 2100 OVERHEAD PROJECTOR This ser vice manual contains ser vicing instruction, troubleshooting guide , adjustments, electr ical diag rams , assembly/dis-assemb ly of par ts and the illustrated par ts list. ANGULAR BODY (2130/4130, 2140/4140, 2160, 2170) ROUND BODY (2150/4150, 2180) SPECIFICATIONS Physical Width - 15.25" (387mm) Depth[...]
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9/92 MODEL 2100 OVERHEAD PROJECTOR 1-2[...]
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9/92 MODEL 2100 OVERHEAD PROJECTOR 2130/2140/2150 4130/4140/41 50 2160/2170/2180 2160/2170/2180 100VAC 50/60HZ 3.6 Amps 14-1/2' (4.4mm) ------- F4 Amp - 250 Volt 220/230/240VAC 50HZ 1.7 Amps 14-1 /2' (4.4mm) VDE, NEMKO, SETI SEMKO, SEV F4 Amp - 250 Volt 120/127/VAC 60HZ 3.0 Amps 14-1/2' (4.4mm) UL, CSA ------- Voltage Frequency Curre[...]
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9/92 1-3 MODEL 2100 OVERHEAD PROJECTOR PRINCIPLES OF OPERATION Optics (See Figure 1-2) The light source for the Overhead Projector is 275 watt, 24 volt, Tungsten Lamp listed as ANSI Code FNT and rated at 75 hours. An external reflector is needed with this lamp. Care should be exercised to prevent excessive vibration or jarring of the projector when[...]
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9/92 2-1 MODEL 2100 OVERHEAD PROJECTOR SET UP PROCEDURE 1 . Connect the power cord to a properly grounded electrical outlet. (Electrical requirements are listed on the serial plate located under the base of the projector.) 2. Place the projector on a level surface and turn the projector on by pushing down on the ON/OFF switch. CAUTION! Do not look [...]
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9/92 MODEL 2100 OVERHEAD PROJECTOR 2-2 A. Pull the mirror down as the FOCUS CORRECTION LEVER is pushed to the rear of the head assembly. B. Raise the mirror back to the original position and refocus using the FO- CUS KNOB. 6. Rotate the Color Tuning Knob until the projected image is free of any yellow or blue corners. - To remove blue corners, rota[...]
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9/92 MODEL 2100 OVERHEAD PROJECTOR LAMP MANAGEMENT SYSTEM (Lamp Indicator) Pertains only to models equipped with lamp indicators. (2130/4130 - No holes, opaque) NOTE When the projector is turned on, the red X will momentarily light. This is a characteristic of the projector. The Lamp Indicator indicates status of projection lamp as defined on the f[...]
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9/92 MODEL 2100 OVERHEAD PROJECTOR 2-4 CLEANING The optical components of the overhead pro- jector require occasional cleaning to remove the dust and oil which tends to accumulate and absorb light. 3M Brand Lens Cleaner (Part No. 78-6969-7086-6) is recommended. A small amount of mild detergent in water will serve as a substitute. Use soft, lint-fre[...]
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9/92 2-5 MODEL 2100 OVERHEAD PROJECTOR LUBRICATION As needed and upon new parts installation, 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 [...]
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9/92 3-1 MODEL 2100 OVERHEAD PROJECTOR SECTION 3 - TROUBLESHOOTING SYMPTOM CHECK CAUSE/SOLUTIONS Projected image is: a. Corners of projected image appear red (brown) or blue. b. Top, bottom, or sides of projected image are not focused. c. Not as bright as it should be. Focus mechanism slips or is too tight. Lamp does not energize, but fan motor doe[...]
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9/92 MODEL 2100 OVERHEAD PROJECTOR 3-2 TROUBLESHOOTING (continued) SYMPTOM CHECK CAUSE/SOLUTIONS Fan motor does not rotate, but lamp does energize. Both lamps of units with lamp changer energize at once. Projector does not operate when power switch is depressed. On dual lamp projectors, position of lamp socket does not change when lamp changer cont[...]
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9/92 4-1 MODEL 2100 OVERHEAD PROJECTOR GENERAL The following section describes the adjustments that will be necessary to service the Model 2100 (4100) Overhead Projectors. TOOLS REQUIRED A. Screwdriver (standard & phillips) B. Wrench, open end C. Pliers, standard D. Pliers, grip ring E. Square F. Torx Driver, #T-15 (for removal of stage glass) [...]
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9/92 1. Select a 60 by 60 inch, smooth area on one wall. Place a sturdy bench or test stand about 8 feet from this wall area. Position the Overhead Projector on the test stand so that it points toward the wall. 2. Measure the vertical distance from the floor to the center of the front projection lens. Following a floor or ceiling line from the proj[...]
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9/92 4-3 MODEL 2100 OVERHEAD PROJECTOR OPTICAL ALIGNMENT Proper alignment of the optical system is essential for good resolution and uniform illumination. Poor resolution in one corner and either red or blue in the corners of the projected image are indications of poor alignment. The following components should be checked and adjusted if necessary [...]
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9/92 MODEL 2100 OVERHEAD PROJECTOR 4-4 FOCUS MECHANISM If the projection head does not hold its focus position, you must adjust focus knob tension or add focus kit (78-8054-1613-4 (gray), 78-8054- 1614-2 (charcoal). To adjust: Turn the Tension Screw counterclockwise to tighten focus assembly. Turn clockwise if binding occurs. NOTE Refocus the proje[...]
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9/92 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 plier[...]
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9/92 MODEL 2100 OVERHEAD PROJECTOR 4-6 POST (FOLDING) If POST is not perpendicular to the body of the projector, proceed with the following steps using Figures below as reference: 1. Loosen SET SCREW. 2. Put a square on the body of the projector and against the POST> 3. Turn the CAM clockwise to adjust POST. 4. Re-tighten SET SCREW. NOTE POST SH[...]
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9/92 6-1 MODEL 2100 OVERHEAD PROJECTOR SECTION 6 DISASSEMBLY/RE-ASSEMBLY TOP COVER ASSEMBLY 1. Raise the Top Cover Assembly by pulling the Release Lever and lifting up. 2. Using both hands, pull either one of the two hinges outward until the hinge pin is out of the hole. Slide the complete TOP COVER ASSEMBLY in the opposite direction to release the[...]
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9/92 6-2 MODEL 2100 OVERHEAD PROJECTOR STAGE GLASS 1. Remove Top Cover Assembly.(See page 6- 1) 2. Remove the Fresnel Lens. (See page 6-1) 3. Remove the six (6) tamper proof screws using a T15 Torx Driver. (3M Part Number 26-1005-8317-3) 4. Remove the MASK (black frame) and Stage Glass. 5. To reassemble, make certain the beveled edges on the Stage [...]
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9/92 How to remove and install the condenser lens (when equipped) Caution! Wear safety glasses when removing lens. 1. Insert a Pin Punch or Drill Rod into the hole in the Tab (see illustration A) 2. Release the lens by bending the Tab. 3. Install the new lens and bend the Tab back into place. Caution! Do not overtighten the tab. The lens must have [...]