1860 - Video projector 3M - Free user manual and instructions
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| Product Type | Overhead Projector |
| Model | 1860 |
| Brand | 3M |
| Dimensions (W x D x H) | 340 x 320 x 190 mm |
| Weight | 4.5 kg |
| Power Supply | AC 220-240V, 50/60 Hz |
| Lamp Type | Halogen, 250W |
| Brightness | 2000 lumens |
| Projection Area | Up to A4 (210 x 297 mm) |
| Focus | Manual, adjustable |
| Cooling Fan | Integrated, thermal protection |
| Main Functions | Projection of transparencies, documents, and objects |
| Maintenance & Cleaning | Clean glass stage with a soft cloth; avoid abrasive cleaners. Replace lamp when dim or burnt out. |
| Safety | Do not cover vents; keep away from water and flammable materials. Unplug when not in use. |
| Spare Parts & Repairability | Lamp (model 78-6969-9985-4), lens assembly, power cord. Repairs by authorized service only. |
| General Information | Portable design with carrying handle; suitable for classrooms and meetings. |
Frequently Asked Questions - 1860 3M
What type of lamp does the 3M 1860 projector use?
The 3M 1860 uses a 250W halogen lamp. Always replace with the specified model (3M 78-6969-9985-4).
Can I project documents other than transparencies?
Yes, the 3M 1860 can project opaque objects and documents up to A4 size, but brightness may be lower.
How do I clean the glass stage?
Use a soft, lint-free cloth with mild glass cleaner. Avoid spraying directly onto the glass; apply to cloth first.
What is the weight of the 3M 1860?
The projector weighs approximately 4.5 kg, making it easy to carry with the built-in handle.
Does the projector have a thermal safety feature?
Yes, it includes a thermal protection fan that shuts off the lamp if overheating is detected.
What size image can the projector display?
Image size depends on distance; typically from 0.5m to 3m diagonal when placed 1.5m to 5m from the screen.
Can I use the projector continuously for hours?
Yes, but allow cooling breaks every 2-3 hours to extend lamp life. Avoid blocking vents.
Where can I find replacement lamps?
Replacement lamps are available from 3M authorized dealers or online. Use part number 78-6969-9985-4.
Is the projector compatible with international voltage?
The 3M 1860 is designed for 220-240V AC. Do not use with step-down converters unless rated for 250W.
How do I adjust the focus?
Turn the focus knob on the lens barrel until the projected image is sharp. Adjust for different projection distances.
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