How to fix a BenQ TH685 Projector that does not turn on?
If your BenQ Projector doesn't turn on, make sure the power cord is securely plugged into both the projector's AC power jack and a working power outlet (and the outlet switch is on, if applicable). Also, if you've recently turned it off, wait for the cooling process to complete before attempting to turn it on again.
Why is my BenQ TH685 Projector remote control not working?
If the remote control for your BenQ Projector isn't working, first replace both batteries with new ones. Then, ensure there are no obstructions between the remote and the projector. Finally, make sure you are within 8 meters (26 feet) of the projector.
What to do if my BenQ TH685 Projector has no picture?
If your BenQ Projector displays no picture, ensure the video source is on and properly connected. Also, verify the projector is correctly connected to the input signal device and the correct input signal is selected using the SOURCE key. Finally, make sure the lens cover is open.
How to resolve a blurred image on a BenQ Projector?
If your BenQ Projector image is blurred, adjust the focus using the focus ring on the projection lens. Also, adjust the projector's angle, direction, and height to properly align it with the screen. Ensure that the lens cover is open.
General| Number of colors | 1.073 billion colors |
|---|---|
| Native aspect ratio | 16:9 |
| Projection distance | - m |
| Vertical scan range | 23 - 120 Hz |
| Horizontal scan range | 15 - 102 kHz |
| Projection technology | DLP |
| Contrast ratio (typical) | 10000:1 |
| Screen size compatibility | 30 - 300 \ |
| Projector native resolution | WUXGA (1920x1200) |
| Keystone correction, vertical | -30 - 30 ° |
| RMS rated power | 5 W |
| Number of built-in speakers | 1 |
| 3D | - |
| Supported video modes | 480i, 480p, 576i, 576p, 720p, 1080i, 1080p |
| Supported graphics resolutions | 640 x 480 (VGA), 720 x 480, 720 x 576, 1280 x 720 (HD 720), 1920 x 1080 (HD 1080) |
| Lamp power | 245 W |
| Lamps quantity | 1 lamp(s) |
| Light source type | Lamp |
| Service life of light source | 4000 h |
| Service life of light source (economic mode) | 10000 h |
| Offset | 105 % |
| Throw ratio | 1.13 - 1.46 |
| Focal length range | 11.9 - 15.5 mm |
| Aperture range (F-F) | 1.94 - 2.07 |
| Vertical lens shift range | -5 - 5 % |
| DVI port | No |
| Composite video in | 0 |
| HDMI connector type | Full-size |
| Serial interface type | RS-232 |
| USB 2.0 ports quantity | USB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them. |
| Noise level | 35 dB |
| Country of origin | China |
| Number of OSD languages | 30 |
| Noise level (economic mode) | 29 dB |
| On Screen Display (OSD) languages | ARA, BUL, CHI (SIMPL), CHI (TR), CRO, CZE, DAN, DEU, DUT, ENG, ESP, FIN, FRE, GRE, HIN, HUN, IND, ITA, JPN, KOR, NOR, PER, POL, POR, RUM, RUS, SWE, THA, TUR, VIE |
| High Dynamic Range (HDR) technology | Hybrid Log-Gamma (HLG) |
| Power source | AC |
| AC input voltage | 100 - 240 V |
| AC input frequency | 50 - 60 Hz |
| Power consumption (max) | 340 W |
| Power consumption (standby) | 0.5 W |
| Power consumption (typical) | 297 W |
| Power consumption (economy mode) | 206 W |
| Quantity per pack | 1 pc(s) |
| Harmonized System (HS) code | 85286200 |
| Operating altitude | 0 - 1499 m |
| Storage temperature (T-T) | -20 - 60 °C |
| Operating temperature (T-T) | 0 - 40 °C |
| Operating relative humidity (H-H) | 10 - 90 % |
| Placement | Desktop |
| Product type | Standard throw projector |
| Product color | White |
| Market positioning | Home cinema |
Weight and Dimensions| Depth | 225 mm |
|---|---|
| Width | 312 mm |
| Height | 110 mm |
| Weight | 2800 g |
| Package depth | 260 mm |
| Package width | 400 mm |
| Package height | 150 mm |
| Package weight | 3200 g |
Details BenQ's warranty terms and conditions for product defects.
Outlines copyright ownership, usage restrictions, and disclaimers.
Essential precautions for safe operation, handling, and environment.
Lists standard and optional accessories included with the projector.
Identifies and describes the external parts and ports of the projector.
Explains the projector and remote control buttons and their operations.
Factors to consider when selecting a place for projector installation.
Table detailing projection distances for various screen sizes.
Recommendations and safety measures for securely mounting the projector.
Steps for fine-tuning image angle and using auto-adjustment feature.
Adjusting image size, clarity, and correcting keystone distortion.
How to connect various devices like computers, A/V equipment, and monitors.
Details on projector audio capabilities and smart device connectivity.
Step-by-step guide for powering on and initial setup wizard.
Explains how to navigate and use the Basic and Advanced OSD menus.
Procedures for using security cable locks and setting up password protection.
How to switch inputs and properly power off the projector.
Overview of available settings in the Basic OSD menu.
Detailed picture adjustment options available in the Advanced menu.
Sound modes and display adjustments like aspect ratio and color.
System configuration, language, and general information settings.
Descriptions of various predefined picture modes for different environments.
Options for sound modes, volume adjustment, and muting.
Settings for enabling and configuring 3D viewing experience.
Detailed picture adjustments like Brightness, Contrast, Color, and Gamma.
Settings for user modes, brightness, contrast, color, tint, and sharpness.
Adjusting gamma curves and HDR brightness levels for optimal display.
Tools for adjusting color hue, saturation, gain, and reducing image noise.
Features for auto brightness, lamp life, and sound modes.
Adjusting aspect ratio, wall color, image position, and overscan.
Settings for language, auto-off, menu display, and source renaming.
Configuration for HDMI, baud rate, cooling, altitude, and password.
Viewing projector info and configuring key lock, LED indicators, and resets.
Instructions for cleaning lenses, projector case, and proper storage.
Understanding lamp usage, extending life, and accessing usage time data.
Settings for light modes and auto power off to extend lamp life.
Step-by-step guide for replacing the projector lamp, including safety precautions.
Procedure to reset the projector's lamp usage timer after replacement.
Explains the meaning of power, temperature, and light status indicators.
Guides on resolving projector startup, no picture, blurred image, and remote issues.
Details on optical, electrical, mechanical, and terminal specifications.
Physical dimensions of the projector.
Table of supported resolutions, frequencies for PC input.
Table of supported resolutions, frequencies for HDMI input.
RS232 pinout and list of commands for projector control.
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