1861RK - Projector OPTOMA - Free user manual and instructions
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| Product type | DLP projector |
| Brand | OPTOMA |
| Model | 1861RK |
| Native resolution | 1920 x 1080 (Full HD) |
| Brightness | 3500 ANSI lumens |
| Contrast | 20,000:1 |
| Display technology | Texas Instruments DLP |
| Lamp life | Up to 6,000 hours (normal mode) |
| Keystone correction | Vertical ± 40° |
| Zoom | Manual, 1.1x |
| Focus | Manual |
| Video inputs | HDMI x2, VGA x1, Composite, S-Video |
| Audio input | 3.5 mm mini-jack |
| Audio output | 3.5 mm mini-jack, built-in speaker 10W |
| Dimensions (W x D x H) | 31.5 x 22.5 x 9.5 cm |
| Weight | 2.5 kg |
| Power supply | 100-240 V AC, 50/60 Hz, 300W |
| Power consumption | Max 300W, standby <0.5W |
| Mounting | Ceiling or table |
| Available spare parts | Lamp, air filter, remote control |
| Repairability index | 7.4/10 |
| Maintenance and cleaning | Clean the air filter every 1000 hours |
Frequently Asked Questions - 1861RK OPTOMA
How to turn the projector on and off?
Press the Power button on the device or remote control. To turn off, press twice: first for standby mode, then confirm.
What is the recommended projection distance?
For a 100-inch image, place the projector about 3 meters from the screen. Refer to the distance table in the manual.
How to clean the air filter?
Turn off the projector and unplug it. Open the filter compartment, remove it, and gently vacuum the dust. Do not wash the filter.
What to do if the image is blurry?
Turn the focus ring on the lens. Make sure the projection distance is correct.
How to correct a trapezoidal image?
Use the keystone correction function in the menu. Adjust vertically with the +/- buttons on the remote control.
What video formats are supported?
The projector accepts HDMI signals up to 1080p, VGA, Composite, and S-Video. It also supports 3D via HDMI.
How to replace the lamp?
Turn off and unplug the projector. Let it cool for 30 minutes. Open the lamp cover, unscrew the old lamp, and install the new one. Reset the counter in the menu.
The projector does not turn on, what should I do?
Check the power cable and outlet. If the indicator flashes red, the lamp or filter needs maintenance. Refer to the error codes section.
How to connect a device via HDMI?
Use a standard HDMI cable. Connect it to one of the projector's HDMI ports and to your source (Blu-ray player, PC). Select the HDMI source in the Input menu.
Where to download the full manual?
Go to our website notice-facile.com and search for model 1861RK. You can download the PDF for free.
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