Why my BenQ TH671ST does not turn on?
If your BenQ Projector does not turn on, ensure the power cord is properly plugged into both the projector's AC power jack and the power outlet. If the outlet has a switch, make sure it's on. Also, if the projector is cooling down, wait until the process is complete before attempting to turn it on again.
How to fix a BenQ TH671ST Projector remote control that is not working?
If the remote control for your BenQ Projector isn't working, first replace both batteries with new ones. If that doesn't solve the problem, make sure there are no obstacles between the remote and the projector. Finally, ensure you are within 8 meters (26 feet) of the projector.
What to do if my BenQ TH671ST Projector has no picture?
If your BenQ Projector shows no picture, here are a few things to check: * Ensure the video source is on and the signal cable is correctly connected. * Verify the projector is correctly connected to the input signal device. * Select the correct input signal using the SOURCE key. * Make sure the lens cover is open.
How to fix a blurred image on a BenQ TH671ST?
If the image from your BenQ Projector appears blurred, try these steps: 1. Adjust the focus of the lens using the focus ring. 2. Adjust the projection angle, direction, and height of the projector to properly align it with the screen. 3. Ensure the lens cover is open.
General| Type | lamp |
|---|---|
| Light Source Life | 4000 hours |
| Color | white |
| Display | dlp |
| Throw Type | short throw |
| TV Tuner | no |
| Portable | fixed |
| Noise Level | 33 decibels |
| Color Brightness | 3000 lumens |
| White Brightness | 3000 lumens |
| Resolution | full hd (1080p) |
| Native Resolution | 1920 x 1080 |
| Contrast Ratio | 10, 000:1 |
| Aspect Ratio | 16:9 |
| Throw Ratio Range | 0.69 - 0.83:1 |
| HDR | no |
| 3 Chip Technology | no |
| Keystone Effect | yes |
| 3D | yes |
| Minimum Screen Size | 60 inches |
| Maximum Screen Size | 180 inches |
| Minimum Aperture | f/2.6 |
| Maximum Aperture | f/2.78 |
| Focus Adjustment | manual |
| Digital Zoom | yes |
| Minimum Distance | 3 feet |
| Maximum Distance | 9.9 feet |
| HDMI Ports | 2 |
| HDMI 2.2 Ports | 0 |
| HDMI ARC Ports | no |
| Wireless HDMI | optional |
| USB Ports | 1 |
| RS-232 Port | 1 |
| Video Input | hdmi, vga |
| Inputs | mini-usb, vga, serial, 3.5mm audio |
| Bluetooth | no |
| Sound Mode | mono |
| Built In Speakers | yes |
| Speakers Output | 5 watts |
| Voice Assistant | no |
| Remote Control | yes |
| OS Compatibility | none |
| Smart Functions | no |
| Power Source | ac/dc power (plug-in) |
| Voltage | 110 volts |
Weight and Dimensions| Depth | 8.8 inches |
|---|---|
| Height | 4.7 inches |
| Width | 11.7 inches |
| Net Weight | 6 pounds |
Outlines BenQ's warranty terms and conditions for the product against defects.
States copyright ownership, reproduction restrictions, and BenQ's disclaimers.
Directs users to a website for BenQ projector patent coverage details.
Covers reading manual, avoiding lens glare, servicing, and lamp handling.
Advises on stable voltage, blocking vents, and lamp operation limits.
Warns against unstable surfaces, disassembly, and improper angles.
Covers liquid spills, mercury lamp disposal, and unsuitable environments.
Lists standard and optional accessories included with the projector.
Provides step-by-step instructions for replacing batteries in the remote control.
Identifies various external components, ports, and controls on the projector.
Details the functions of buttons on the projector and the remote control.
Explains the meaning of the projector's POWER, TEMPerature, and LAMP indicator lights.
Explains functions of IR sensor, BACK, Arrow, Keystone, and Volume keys.
Explains SOURCE, MENU, and AUTO button functions for navigation.
Details PIC MODE, LumiExpert, Sound Mode, audio toggle, and volume controls.
Explains ECO BLANK function and MHL Zone control.
Details how to use the AUTO button to control MHL-compatible smart devices.
Specifies the effective angle and distance for remote control operation.
Lists factors for choosing a location and describes four installation methods.
Guides on setting the projector position in the Advanced Menu.
Provides a chart with screen sizes and projection distances for 16:9 aspect ratio.
Illustrates how to use the projection distance chart to determine screen size.
Provides crucial recommendations and warnings before installing the projector.
Shows a diagram for ceiling/wall mounting screw specifications.
Explains how to use adjuster feet to fine-tune projection angle and correct trapezoidal images.
Repeats a safety warning about not looking into the lens while the lamp is on.
Describes the Intelligent Auto Adjustment function for optimizing picture quality.
Explains adjusting image size with zoom ring and clarity with focus ring.
Details steps to manually correct keystone distortion using remote control buttons.
Provides instructions and a diagram for connecting devices like PCs and smart devices.
Lists common cables and their corresponding input terminals on the projector.
Explains the projector's built-in mono speaker functionality and audio output.
Guides users through the initial power-on and setup wizard process.
Explains the first step of the setup wizard for specifying projector position.
Explains the second step of the setup wizard for selecting the OSD language.
Explains the third step of the setup wizard for vertical keystone correction.
Covers Auto Source and Menu Type selection in the setup wizard.
Explains signal searching, input compatibility, and saving mode.
Covers password prompts and safety for accessories and operation.
Introduces the basic OSD menu functions and provides an overview.
Introduces the advanced OSD menu functions and provides an overview.
Guides users on how to switch between the basic and advanced menu types.
Provides instructions to switch from the advanced OSD menu back to the basic OSD menu.
Explains how to use a security cable lock to prevent theft.
Details steps to set a password, activate Power On Lock, and handle errors.
Describes the password error message and actions for forgotten passwords.
Explains the procedure to recall a forgotten password using a coded number.
Guides on changing the existing password and disabling password protection.
Explains how to switch between connected input signals using the SOURCE button.
Advises on selecting input signals compatible with native resolution for best results.
Details the steps for properly turning off the projector, including the cooling process.
Explains direct power off and precautions for immediate restarts.
Mentions the quick cooling function to shorten the projector's cooling time.
Provides advice on avoiding short lamp life by preventing immediate restart.
Introduces the basic OSD menu and its available options like Picture Mode, Sound Mode, Volume, Mute, and Fast Mode.
Explains the projector's 3D capabilities, glasses requirement, and sync invert function.
Covers Wall Color, Overscan, and PC/YPbPr tuning for image quality.
Guides on adjusting the image position using directional keys.
Details predefined and user-definable picture modes, including user mode management.
Explains how to adjust image brightness for optimal black levels and detail.
Covers Contrast, Color, Tint, Sharpness, and Gamma Selection for image refinement.
Explains the available color temperature presets (Lamp Native, Warm, Normal, Cool).
Covers Color Management, Noise Reduction, and Brilliant Color features.
Explains Fast Mode, Light Mode, and LumiExpert for power and brightness.
Covers Sound Mode, User EQ, Mute, Volume, Ring Tone, and Reset Audio Settings.
Resets current picture menu adjustments to factory presets.
Explains options for setting image aspect ratio (Auto, 4:3, 16:9, Wide, Letter Box).
Covers Wall Color, Overscan, and PC/YPbPr tuning for image quality.
Explains how to enable and configure 3D mode, including format selection and sync invert.
Sets OSD language, background color, and splash screen.
Covers projector positioning, auto-off timer, and direct power-on.
Covers menu settings, source renaming, and auto source search.
Accesses lamp timer settings and configures HDMI range.
Covers test pattern, quick cooling, high altitude mode, and baud rate.
Covers setting up password security and enabling key lock.
Explains how to enable/disable LED indicators and their meanings.
Resets all settings to factory preset values, except specific configurations.
Shows details like source, picture mode, resolution, lamp usage, and firmware version.
Provides instructions for cleaning the projector lens and case.
Gives guidelines for storing the projector for extended periods and transport advice.
Explains how lamp usage time is calculated and the concept of equivalent lamp hours.
Guides on how to check the lamp hour information via the menu.
Discusses setting Light Mode and Auto Off to prolong lamp life.
Advises on when to replace the lamp and what indicator lights signify.
Lists crucial safety warnings, purchase advice, and disposal information.
Starts the step-by-step guide for replacing the projector lamp, including power off and cover removal.
Continues detailed steps for removing the old lamp and installing the new one.
Concludes lamp replacement with cover securing and power connection.
Guides on resetting the lamp timer after a new lamp has been installed.
Provides a table detailing the meaning of POWER, TEMPerature, and LAMP indicator light states.
Addresses issues like projector not turning on or no picture displayed.
Provides solutions for blurred image issues.
Addresses remote control malfunctions and incorrect password issues.
Lists detailed technical specifications for optical, electrical, and mechanical aspects.
Details terminals, operating conditions, and storage requirements.
Provides advice on transporting the projector and finding service contacts.
Shows the projector's physical dimensions (W x H x D) with a diagram.
Lists supported frequencies for PC input resolutions.
Indicates PC input timings supporting various 3D formats.
Lists supported timings for HDMI input, including PC resolutions.
Indicates HDMI input timings supporting various 3D formats.
Lists supported timings for video inputs and their corresponding 3D formats.
Lists supported timings for MHL input resolutions and formats.
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