Benq TH685 User Manual

Digital Projector

User Manual

Home Entertainment Series I TH685

V 1.00

Warranty and Copyright information

Limited warranty

BenQ warrants this product against any defects in material and workmanship, under normal usage and storage.

Proof of purchase date will be required with any warranty claim. In the event this product is found to be defective within the warranty period, BenQ's only obligation and your exclusive remedy shall be replacement of any defective parts (labor included). To obtain warranty service, immediately notify the dealer from which you purchased the product of any defects.

Important: The above warranty shall be void if the customer fails to operate the product in accordance with BenQ's written instructions, especially the ambient humidity must be in-between 10% and 90%, temperature in-between 0°C and 35°C, altitude lower than 4920 feet, and avoiding to operate the projector in a dusty environment. This warranty gives you specific legal rights, and you may have other rights which vary from country to country.

For other information, please visit www.BenQ.com.

Copyright © 2019 by BenQ Corporation. All rights reserved. No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system or translated into any language or computer language, in any form or by any means, electronic, mechanical, magnetic, optical, chemical, manual or otherwise, without the prior written permission of BenQ Corporation.

Disclaimer

BenQ Corporation makes no representations or warranties, either expressed or implied, with respect to the contents hereof and specifically disclaims any warranties, merchantability or fitness for any particular purpose. Further, BenQ Corporation reserves the right to revise this publication and to make changes from time to time in the contents hereof without obligation to notify any person of such revision or changes.

*DLP, Digital Micromirror Device and DMD are trademarks of Texas Instruments. Others are copyrights of their respective companies or organizations.

Patents

Please go to http://patmarking.benq.com/ for the details on BenQ projector patent coverage.

2 Warranty and Copyright information

Table of Contents

Warranty and Copyright information ................................................................................ 2

Important safety instructions .............................................................................................. 4

Introduction .......................................................................................................................... 7

Shipping contents ....................................................................................................................................... 7

Projector exterior view ............................................................................................................................ 8

Controls and functions.............................................................................................................................. 9

Positioning your projector ................................................................................................. 11

Choosing a location ................................................................................................................................. 11

Obtaining a preferred projected image size....................................................................................... 12

Mounting the projector .......................................................................................................................... 13

Adjusting the projected image ..............................................................................................................14

Connection .......................................................................................................................... 16

Connecting smart devices ...................................................................................................................... 17

Operation ............................................................................................................................ 18

Starting up the projector ........................................................................................................................18

Using the menus ....................................................................................................................................... 20

Securing the projector ............................................................................................................................ 21

Switching input signal ...............................................................................................................................23

Shutting down the projector .................................................................................................................23

Direct power off ...................................................................................................................................... 23

Menu operation ................................................................................................................... 24

Menu System ............................................................................................................................................. 24

Basic menu ............................................................................................................................................... 29

Advanced menu ..................................................................................................................................... 31

Maintenance ........................................................................................................................ 40

Care of the projector .............................................................................................................................. 40

Lamp information ..................................................................................................................................... 41

Troubleshooting ................................................................................................................. 47

Specifications ...................................................................................................................... 48

Projector specifications ..........................................................................................................................48

Dimensions ................................................................................................................................................49

Timing chart............................................................................................................................................... 50

RS232 command....................................................................................................................................... 53

3 Table of Contents

Important safety instructions

Your projector is designed and tested to meet the latest standards for safety of information technology equipment. However, to ensure safe use of this product, it is important that you follow the instructions mentioned in this manual and marked on the product.

1. Please read this manual before you operate your projector. Save it for future reference.

2. Do not look straight at the projector lens during operation. The intense light beam may damage your eyes.

3. Refer servicing to qualified service personnel.

6. In some countries, the line voltage is NOT stable. This projector is designed to operate safely within a mains voltage between 100 to 240 volts AC, but could fail if power cuts or surges of ±10 volts occur. In areas where

the mains voltage may fluctuate or cut out, it is recommended that you connect your projector through a power stabilizer, surge protector or uninterruptible power supply (UPS).

7. Do not block the projection lens with any objects when the projector is under operation as this could cause the objects to become heated and deformed or even cause a fire. To temporarily turn off the lamp, use the blank function.

4. Always open the lens shutter (if any) or

remove the lens cap (if any) when the projector lamp is on.

5. The lamp becomes extremely hot during operation. Allow the projector to cool for approximately 45 minutes prior to removing the lamp assembly for replacement.

8. Do not operate lamps beyond the rated lamp life. Excessive operation of lamps beyond the rated life could cause them to break on rare occasions.

4 Important safety instructions

9. Never replace the lamp assembly or any electronic components unless the projector is unplugged.

10. Do not place this product on an unstable cart, stand, or table. The product may fall, sustaining serious damage.

11. Do not attempt to disassemble this projector. There are dangerous high voltages inside which may cause death if you should come into contact with live parts. The only user serviceable part is the lamp which has its own removable cover.

Under no circumstances should you ever undo or remove any other covers. Refer servicing only to suitably qualified professional service personnel.

13. Always place the projector on a level, horizontal surface during operation.

- Do not use if tilted at an angle of more than 10 degrees left to right, nor at angle of more than 15 degrees front to back. Using the projector when it is not fully horizontal may cause a malfunction of, or damage to, the lamp.

14. Do not stand the projector on end vertically. Doing so may cause the projector to fall over, causing injury or resulting in damage to the projector.

15. Do not step on the projector or place any objects upon it. Besides probable physical damage to the projector, doing so may result in accidents and possible injury.

12. Do not block the ventilation holes.

- Do not place this projector on a blanket, bedding or any other soft surface.

- Do not cover this projector with a cloth or any other item.

- Do not place inflammables near the projector.

If the ventilation holes are seriously obstructed, overheating inside the projector may result in a fire.

16. When the projector is under operation, you may sense some heated air and odor from its ventilation grill. It is a normal phenomenon and not a product defect.

5 Important safety instructions

17. Do not place liquids near or on the projector.

3000 m

(10000 feet)

0 m

(0 feet)

Liquids spilled into the projector may cause it to fail. If the projector does become wet, disconnect it from the power supply's power outlet and call BenQ to have the projector serviced.

- Locations near fire alarms

- Locations with an ambient temperature above 40°C / 104°F

- Locations where the altitudes are higher than 3000 m (10000 feet).

Risk Group 2

18. This product is capable of displaying inverted images for ceiling/wall mount installation.

19. This apparatus must be earthed.

20. Do not place this projector in any of the following environments.

- Space that is poorly ventilated or confined. Allow at least 50 cm clearance from walls and free flow of air around the projector.

- Locations where temperatures may become excessively high, such as the inside of a car with all windows rolled up.

- Locations where excessive humidity, dust, or cigarette smoke may contaminate optical components, shorten the projector's life span and darken the image.

1. According to the classification of photobiological safety of lamps and lamp systems, this product is Risk Group 2, IEC 62471-5:2015.

2. Possibly hazardous optical radiation emitted from this product.

3. Do not stare at operating lamp. May be harmful to the eyes.

4. As with any bright source, do not stare into the direct beam.

Hg - Lamp contains mercury. Manage in accordance with local disposal laws. See www.lamprecycle.org.

To avoid damaging the DLP chips, never aim a high-power laser beam into the projection lens.

6 Important safety instructions

Introduction

Shipping contents

Carefully unpack and verify that you have all of the items shown below. If any of these items are missing, please contact your place of purchase.

Standard accessories

Projector

Warranty card* Power cord VGA cable

• The supplied accessories will be suitable for your region, and may differ from those illustrated.

• *The warranty card is only supplied in some specific regions. Please consult your dealer for detailed information.

Remote control with

batteries

Optional accessories

1. Spare lamp kit

2. 3D glasses

3. QCast Mirror dongle (QP20)

Replacing the remote control batteries

1. Press and slide off the battery cover, as illustrated.

2. Remove the old batteries (if applicable) and install two AAA batteries. Make sure that the positive and negative ends are positioned correctly, as illustrated.

Quick start guide

3. Slide the battery cover in until it clicks into place.

• Avoid leaving the remote control and batteries in an excessive heat or humid environment like the kitchen, bathroom, sauna, sunroom or in a closed car.

• Replace only with the same or equivalent type recommended by the battery manufacturer.

• Dispose of the used batteries according to the manufacturer's instructions and local environment regulations for your region.

• Never throw the batteries into a fire. There may be danger of an explosion.

• If the batteries are dead or if you will not be using the remote control for an extended period of time, remove the batteries to avoid damage to the remote control from possible battery leakage.

7 Introduction

Projector exterior view

3 3

11 12

14 15 16

1. Focus ring and Zoom ring

2. Vent (air exhaust)

3. Adjuster feet

4. Projection lens

5. IR remote sensor

6. External control panel (See Controls and functions on page 9.)

7. Lamp cover

8. Ambient Light Sensor (ALS)

9. Vent (air inlet)

10. Audio input jacks Audio output jack

11. HDMI 2 input port

12. HDMI 1 input port

13. USB Type A port

14. RGB (PC) signal input jacks

15. RGB (PC) signal output jack

16. RS-232 control port

17. AC power jack

18. Kensington anti-theft lock slot

19. Ceiling mount holes

8 Introduction

Controls and functions

3 4

All the key presses described in this document are available on the remote control or projector.

Projector & Remote control

1. POWER

Toggles the projector between standby mode and on.

ON/ Off

Toggles the projector between standby mode and on.

2. POWER indicator light/TEMPerature warning light/LIGHT indicator light (See Indicators on page 46.)

3. IR remote sensor

4. BACK

Goes back to previous OSD menu, exits and saves menu settings.

5. Arrow keys ( , , , )

When the On-Screen Display (OSD) menu is activated, these keys are used as directional arrows to select the desired menu items and to make adjustments.

Keystone keys ( , )

Displays the keystone correction page.

Vol um e ke ys /

Decreases or increase the projector volume.

9 Introduction

6. SOURCE

12. PIC MODE

Displays the source selection bar.

7. ECO BLANK

Used to hide the screen picture.

Do not block the projection lens from projecting as this could cause the blocking object to become heated and deformed or even cause a fire.

8. OK

Confirms the selected On-Screen Display (OSD) menu item.

9. AUTO

Automatically determines the best picture timings for the displayed image when PC signal (analog RGB) is selected.

10. MENU

Turns on the On-Screen Display (OSD) menu.

11.

Displays the keystone menu.

Selects the picture mode.

13.

Toggles projector audio between on and off.

14. MHL Zone

This model does not support MHL functions.

15. SOUND MODE

Selects the sound mode.

16. LUMIEXPERT BOOST

Displays the LumiExpert Boost menu.

17. Volume keys /

Decreases or increases the projector volume.

Remote control effective range

The remote control must be held at an angle within 30 degrees perpendicular to the projector's IR remote control sensor(s) to function correctly. The distance between the remote control and the sensor(s) should not exceed 8 meters (~ 26 feet).

Make sure that there are no obstacles between the remote control and the IR sensor(s) on the projector that might obstruct the infra-red beam.

• Operating the projector from the front • Operating the projector from the top

10 Introduction

Positioning your projector

Choosing a location

Before choosing an installation location for your projector, take the following factors into consideration:

• Size and position of your screen

• Electrical outlet location

• Location and distance between the projector and the rest of your equipment

You can install your projector in the following ways.

1. Front

Select this location with the projector placed on the table in front of the screen. This is the most common way to position the projector for quick setup and portability.

3. Front Ceiling

Select this location with the projector suspended upside-down from the ceiling in front of the screen. Purchase the BenQ Projector Ceiling Mount Kit from your dealer to mount your projector on the ceiling.

2. Rear

Select this location with the projector placed on the table behind the screen. Note that a special rear projection screen is required.

4. Rear Ceiling

Select this location with the projector suspended upside-down from the ceiling behind the screen. Note that a special rear projection screen and the BenQ Projector Ceiling Mount Kit are required for this installation location.

After turning on the projector, go to Basic Menu - Settings > Projector Installation, press OK and press / to select a setting.

You can also use QUICK INSTALL on the remote control to access this menu.

11 Positioning your projector

Obtaining a preferred projected image size

Projection distance

Center of lens

Screen

16:9 Screen diagonal

The distance from the projector lens to the screen, the zoom setting (if available), and the video format each factors in the projected image size.

Projection dimensions

• The screen aspect ratio is 16:9 and the projected picture is in a 16:9 aspect ratio

Screen size Projection Distance (mm)

Diagonal

Inch mm

30 762 374 664 748 859 970 19

40 1016 498 886 998 1145 1293 25

50 1270 623 1107 1247 1432 1616 31

60 1524 747 1328 1497 1718 1939 37

70 1778 872 1550 1746 2004 2263 44

80 2032 996 1771 1996 2291 2586 50

90 2286 1121 1992 2245 2577 2909 56

100 2540 1245 2214 2495 2864 3232 62

110 2794 1370 2435 2744 3150 3555 68

120 3048 1494 2657 2994 3436 3879 75

130 3302 1619 2878 3243 3723 4202 81

140 3556 1743 3099 3493 4009 4525 87

150 3810 1868 3321 3742 4295 4848 93

160 4064 1992 3542 3992 4582 5171 100

170 4318 2117 3763 4241 4868 5495 106

180 4572 2241 3985 4491 5154 5818 11 2

190 4826 2366 4206 4740 5441 6141 11 8

200 5080 2491 4428 4990 5727 6464 125

210 5334 2615 4649 5239 6013 6788 131

220 5588 2740 4870 5489 6300 7111 137

230 5842 2864 5092 5738 6586 7434 143

240 6096 2989 5313 5988 6873 7757 149

250 6350 3113 5535 6237 7159 8080 156

260 6604 3238 5756 6487 7445 8404 162

270 6858 3362 5977 6736 7732 8727 168

280 7112 3487 6199 6986 8018 9050 174

290 7366 3611 6420 7235 8304 9373 181

300 7620 3736 6641 7485 8591 9696 187

H (mm) W (mm)

Min distance

(with max zoom)

Average

Max distance

(with min zoom)

12 Positioning your projector

Offset

(mm)

For example, if you are using a 120-inch screen, the recommended projection distance in the "Average" column is 3436 mm.

If your measured projection distance is 3700 mm, the closest match in the "Average" column is 3723 mm. Looking across this row shows that a 130'' (about 3.3 m) screen is required.

To optimize your projection quality, we suggest to do the projection within non-gray area.

All measurements are approximate and may vary from the actual sizes. BenQ recommends that if you intend to permanently install the projector, you should physically test the projection size and distance using the actual projector in situ before you permanently install it, so as to make allowance for this projector's optical characteristics. This will help you determine the exact mounting position so that it best suits your installation location.

Mounting the projector

If you intend to mount your projector, we strongly recommend that you use a proper fitting BenQ projector mounting kit and that you ensure it is securely and safely installed.

If you use a non-BenQ brand projector mounting kit, there is a safety risk that the projector may fall down due to an improper attachment through the use of the wrong gauge or length screws.

Before mounting the projector

• Purchase a BenQ projector mounting kit from the place you purchased your BenQ projector.

• BenQ recommends that you also purchase a separate Kensington lock compatible security cable and attach it securely to both the Kensington lock slot on the projector and the base of the mounting bracket. This will perform the secondary role of restraining the projector should its attachment to the mounting bracket become loose.

• Ask your dealer to install the projector for you. Installing the projector on your own may cause it to fall and result in injury.

• Take necessary procedures to prevent the projector from falling off such as during an earthquake.

• The warranty doesn’t cover any product damage caused by mounting the projector with a non-BenQ brand projector mounting kit.

• Consider the surrounding temperature where the projector is ceiling/wall mounted. If a heater is used, the temperature around the ceiling may be higher than expected.

• Read the user manual for the mounting kit about the range of torque. Tightening with torque exceeding the recommended range may cause damage to the projector and subsequently falling off.

• Make sure the power outlet is at an accessible height so that you can easily shut down the projector.

13 Positioning your projector

Ceiling/Wall mount installation diagram

Ceiling/Wall mount screw: M4 (Max L = 25 mm; Min L = 20 mm)

Unit: mm

113.54 60

40.27

65.89

Adjusting the projected image

Adjusting the projection angle

If the projector is not placed on a flat surface or the screen and the projector are not perpendicular to each other, the projected image becomes trapezoidal. You can adjust the adjuster feet to fine-tune the horizontal angle.

To retract the feet, screw the adjuster feet in a reverse direction.

Do not look into the lens while the lamp is on. The strong light from the lamp may cause damage to your eyes.

65.89

Auto-adjusting the image

In some cases, you may need to optimize the picture quality. To do this, press AUTO. Within 3 seconds, the built-in Intelligent Auto Adjustment function will re-adjust the values of Frequency and Clock to provide the best picture quality.

The current source information will be displayed in the corner of the screen for 3 seconds.

This function is only available when PC signal (analog RGB) is selected.

14 Positioning your projector

Fine-tuning the image size and clarity

Press .

Adjust the projected image to the size that you need using the zoom ring.

Sharpen the image by rotating the focus ring.

Correcting keystone

Keystoning refers to the situation where the projected image becomes a trapezoid due to angled projection.

To correct this, you will need to manually correct it following these steps.

1. Do one of the following steps to display the keystone

correction page.

• Press / on the projector.

• Press on the remote control.

2. After the Keystone correction page displays. Press to correct keystoning at the top of the

image. Press to correct keystoning at the bottom of the image.

15 Positioning your projector

Connection

Notebook or desktop computer

Monitor

A/V device

Speakers

Smart device

VGA cable

VGA to DVI-A cable

Component Video to VGA (D-Sub) adapter cable

HDMI cable

Audio cable

HDMI wireless dongle

USB cable (A to Micro B type) connect to the power port of HDMI wireless dongle.

23456

When connecting a signal source to the projector, be sure to:

1. Turn all equipment off before making any connections.

2. Use the correct signal cables for each source.

3. Ensure the cables are firmly inserted.

• In the connections above, some cables may not be included with the projector (see Shipping contents on page 7).

• The connection illustrations are for reference only. The rear connecting jacks available on the projector vary with

• Many notebooks do not turn on their external video ports when connected to a projector. Usually a key combo

• If the selected video image is not displayed after the projector is turned on and the correct video source has been

They are commercially available from electronics stores.

each projector model.

like FN + function key with a monitor symbol turns the external display on/off. Press FN and the labeled function key simultaneously. Refer to your notebook's documentation to find your notebook's key combination.

selected, check that the video source device is turned on and operating correctly. Also check that the signal cables have been connected correctly.

16 Connection

You need only connect the projector to a video source device using just one of the connecting methods, however each provides a different level of video quality.

Te r m i n a l Picture quality

HDMI

Component Video (through RGB

input)

Best

Better

Connecting audio

The projector has built-in mono speaker(s) which are designed to provide basic audio functionality accompanying data presentations for business purposes only. They are not designed for, nor intended for stereo audio reproduction use as might be expected in home theater or home cinema applications. Any stereo audio input (if provided), is mixed into a common mono audio output through the projector speaker(s).

The built-in speaker(s) will be muted when the AUDIO OUT jack is connected.

• The projector is only capable of playing mixed mono audio, even if a stereo audio input is connected.

• If the selected video image is not displayed after the projector is turned on and the correct video source has been selected, check that the video source device is turned on and operating correctly. Also check that the signal cables have been connected correctly.

Connecting smart devices

The projector can project the content directly from a smart device by using a wireless dongle.

HDMI wireless dongle (e.g. BenQ QCast Mirror)

Connect the dongle to HDMI and USB TYPE-A ports on the projector and switch the input signal to HDMI 1 or HDMI 2.

17 Connection

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