Benq TH682ST User Manual

TH682ST Digital Projector

User Manual

Ta b l e o f c o nte n t s

Important safety

instructions ........................... 3

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

Projector features.....................................7

Shipping contents ...................................... 8

Projector exterior view........................... 9

Controls and functions ..........................10

Positioning your

projector..............................13

Choosing a location................................13

Obtaining a preferred projected image

size..............................................................14

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

Connecting video source devices........17

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

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

Adjusting the projected image .............19

Using the menus......................................21

Securing the projector...........................22

Switching input signal .............................24

Magnifying and searching for details ...25

Selecting the aspect ratio ......................25

Optimizing the image .............................27

Setting the presentation timer.............30

Remote paging operations ....................31

Freezing the image ..................................31

Hiding the image......................................32

Locking control keys ..............................32

Operating in a high altitude

environment.............................................32

Adjusting the sound................................33

Using the test pattern ............................33

Using the teaching templates ............... 34

Shutting down the projector ............... 35

Direct power off.....................................35

Menu operation ...................................... 36

Maintenance........................ 46

Care of the projector............................ 46

Lamp information ................................... 47

Troubleshooting ................ 53

Specifications ...................... 54

Projector specifications......................... 54

Dimensions .............................................. 55

Ceiling mount installation ..................... 55

Timing chart............................................. 56

Warranty and Copyright

information ......................... 60

Table of contents2

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.

Safety Instructions

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.

5. In some countries, the line voltage is

6. Do not block the projection lens with

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).

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, press ECO BLANK on the projector or remote control.

4. Always open the lens shutter (if

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

Important safety instructions 3

Safety Instructions (Continued)

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

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

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.

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

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.

12. 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.

Important safety instructions4

3000 m

(10000 feet)

0 m

(0 feet)

Safety Instructions (Continued)

13. 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.

- 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).

14. 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.

15. 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.

16. 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.

Important safety instructions 5

Safety Instructions (Continued)

17. 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.

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

19. This product is capable of displaying inverted images for ceiling mount installation.

Use only BenQ's Ceiling Mount Kit for mounting the projector and ensure it is securely installed.

Ceiling mounting the projector

We want you to have a pleasant experience using your BenQ projector, so we need to bring this safety matter to your attention to prevent possible damage to person and property.

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

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

You can purchase a BenQ projector ceiling mount 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 ceiling mount bracket. This will perform the secondary role of restraining the projector should its attachment to the mounting bracket become loose.

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

20. This apparatus must be earthed.

Important safety instructions6

Introduction

Projector features

The projector offers the following features

• Full HD compatible The projector is compatible with Standard Definition TV (SDTV) 480i, 480p, 576i, 576p and High Definition TV (HDTV) 720p, 1080i and 1080p formats, with the 1080p format providing a true 1:1 image reproduction.

• SmartEco™ starts your dynamic power saving The SmartEco™ technology offers a new way of operating the projector lamp system and saves lamp power depending on the content brightness level.

• Longest lamp life with SmartEco™ technology The SmartEco™ technology lowers the power consumption and increases the lamp life.

• ECO BLANK saves the lamp power Pressing the ECO BLANK button to hide the image and immediately lower the lamp power at the same time.

• Less than 0.5W in standby condition Less than 0.5W power consumption under standby mode.

• Quick Cooling, Auto Power Off, Signal Power On, Direct Power On Quick Cooling function speeds up the cooling process when turning off the projector. Auto Power Off function allows the projector to turn off automatically if no input signal is detected after a set period of time. Signal Power On function turns on your projector automatically once detecting the signal input and Direct Power On boots up the projector automatically when the power is connected.

• Instant Restart Selectable Instant Restart function enables you to restart the projector immediately within 90 seconds after turning it off.

• 3D Function supported Various 3D formats make the 3D function more flexible. By presenting the depth of the images, you can wear BenQ 3D glasses to enjoy the 3D movies, videos and sporting events in a more realistic way.

• The apparent brightness of the projected image will vary depending on the ambient lighting conditions, selected input signal contrast/brightness settings, and is directly proportional to projection distance.

• The lamp brightness will decline over time and may vary within the lamp manufacturers specifications. This is normal and expected behavior.

Introduction 7

Shipping contents

Digital Projector

Quick Start Guide

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

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.

Projector Power cord VGA cable

Quick start guide User manual CD Warranty card*

Remote control with batteries Carry bag

Optional accessories

1. Spare lamp kit

2. Ceiling mount kit

Introduction8

Projector exterior view

Front/upper side

1716

Rear/lower side

1. External control panel (See "Controls and functions" on page 10 for details.)

2. Lamp cover

3. Vent (heated air exhaust)

4. Speaker grill

5. Quick-release button

6. Lens cap

7. Focus and Zoom ring

8. Vent (cool air intake)

9. Front IR remote sensor

10. Projection lens

11. Audio input jack Audio output jack

12. USB port

13. HDMI-input port

14. RGB (PC)/Component Video (YPbPr/ YCbCr) signal input jack

15. RGB signal output jack

16. RS232 control port

17. S-Video input jack Video input jack

18. Kensington anti-theft lock slot

19. AC power jack

20. Rear adjuster foot

21. Ceiling mount holes

Introduction 9

Controls and functions

Projector

1 2

3 4

5 6

7 8

11 12 13

1. Focus ring

Adjusts the focus of the projected image.

2. Zoom ring

Adjusts the size of the image.

3. Top IR remote sensor

4. MENU/EXIT

Turns on the On-Screen Display (OSD) menu. Goes back to previous OSD menu, exits and saves menu settings.

5. POWER Toggles the projector between standby

mode and on.

6. Left/

Decreases the projector volume.

7. MODE/ENTER

Selects an available picture setup mode. Activates the selected On-Screen Display

(OSD) menu item.

8. ECO BLANK

Used to hide the screen picture.

9. POWER indicator light

Lights up or flashes when the projector is under operation.

10. TEMPerature warning light

Lights up red if the projector's temperature becomes too high.

11. LAMP indicator light

Indicates the status of the lamp. Lights up or flashes when the lamp has developed a problem.

12. AUTO

Automatically determines the best picture timings for the displayed image.

13. Keystone/Arrow keys ( / Up, / Down)

Manually corrects distorted images resulting from an angled projection.

14. Right/

Increases the projector volume. When the On-Screen Display (OSD)

menu is activated, the #6, #13, and #14 keys are used as directional arrows to select the desired menu items and to make adjustments.

15. SOURCE

Displays the source selection bar.

Introduction10

Remote control

10. Page Up/Page Down

Operate your display software program (on a connected PC) which responds to page up/ down commands (like Microsoft PowerPoint).

11. Digital Zoom (+, -)

Magnifies or reduces the projected picture size.

12. Timer On

Activates or displays an on-screen timer based on your own timer setting.

13. Timer Set up

Enters presentation timer setting directly.

14. 3D settings

Enters 3D settings directly.

1. POWER Toggles the projector between standby

mode and on.

2. Info

Shows the status information of the projector.

3. MENU/EXIT

Turns on the On-Screen Display (OSD) menu. Goes back to previous OSD menu, exits and saves menu settings.

4. Left

5. MODE/ENTER

Selects an available picture setup mode. Activates the selected On-Screen Display

(OSD) menu item.

6. ECO BLANK

Used to hide the screen picture.

7. Keystone/Arrow keys ( / Up, /

Down)

Manually corrects distorted images resulting from an angled projection.

8. SmartEco

Displays the lamp mode selection bar.

9. Aspect

Selects the display aspect ratio.

15. AUTO

Automatically determines the best picture timings for the displayed image.

16. Right

When the On-Screen Display (OSD) menu is activated, the #4, #7, and #16 keys are used as directional arrows to select the desired menu items and to make adjustments.

17. SOURCE

Displays the source selection bar.

18. Volume +/-

Adjusts the sound level.

19. Mute

Toggles projector audio between on and off.

20. Freeze

Freezes the projected image.

21. Quick Install

Quickly selects several functions to adjust the projected image and displays the test pattern.

22. CC

Displays the video term description on screen which is provided for hard-of-hearing viewers.

23. Teaching template Enters Teaching template setting directly.

Introduction 11

Remote control effective range

• Operating the projector from the front

• Operating the projector from the top

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.

Replacing the remote control batteries

1. To open the battery cover, turn the remote control over to view its back, push on the finger grip on the cover and slide it up in the direction of the arrow as illustrated. The cover will slide off.

2. Remove any existing batteries (if necessary) and install two AAA batteries observing the battery polarities as indicated in the base of the battery compartment. Positive (+) goes to positive and negative (-) goes to negative.

3. Refit the cover by aligning it with the base and sliding it back down into position. Stop when 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.

Introduction12

Positioning your projector

Choosing a location

Your projector is designed to be installed in one of four possible installation locations:

1. Front Table

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.

2. 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.

Set Front Ceiling in the SYSTEM SETUP: Basic > Projector Installation menu after you turn the projector on.

3. 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.

Set Rear Ceiling in the SYSTEM SETUP: Basic > Projector Installation menu after you turn the projector on.

4. Rear Table

Select this location with the projector placed on the table behind the screen.

Note that a special rear projection screen is required.

Set Rear Table in the SYSTEM SETUP: Basic > Projector Installation menu after you turn the projector on.

Your room layout or personal preference will dictate which installation location you select. Take into consideration the size and position of your screen, the location of a suitable power outlet, as well as the location and distance between the projector and the rest of your equipment.

Positioning your projector 13

Obtaining a preferred projected image size

Center of lens

Screen

Projection distance

Vertical offset

16:9 Screen diagonal

The distance from the projector lens to the screen, the zoom setting, 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 Distance from screen (mm)

Diagonal

H (mm) W (mm)

Inch mm

60 1524 747 1328 913 959 1005 19

70 1778 872 1550 1065 1119 1172 22

80 2032 996 1771 1218 1279 1339 25

90 2286 1121 1992 1370 1438 1507 28

100 2540 1245 2214 1522 1598 1674 31

110 2794 1370 2435 1674 1758 1842 34

120 3048 1494 2657 1826 1918 2009 37

Min

length

(max.

zoom)

Average

For example, if you are using an 120-inch screen, the recommended projection distance is 1918 mm and the vertical offset is 37 mm.

If your measured projection distance is 1.6 m (1600 mm), the closest match in the

"Distance from screen (mm)" column is 1598 mm. Looking across this row shows that a

100'' (about 2.5 m) screen is required.

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.

Max

length

(min.

zoom)

Ve rt ic al

offset (mm)

Positioning your projector14

Connection

8 7

2 63 51

Notebook or desktop computer

Speakers

A/V device

Monitor

(DVI)

(VGA)

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 shown below, some cables may not be included with the projector (see "Shipping

contents" on page 8). They are commercially available from electronics stores.

• The connection illustrations below are for reference only. The rear connecting jacks available on the

projector vary with each projector model.

5. S-Video cable

6. Video cable

7. Audio L/R cable

8. Audio cable

9. HDMI cable

1. VGA cable

2. VGA to DVI-A cable

3. USB cable

4. Component Video to VGA (D-Sub)

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

• The D-Sub output only works when an appropriate D-Sub input is made to the COMPUTER 1 jack.

• If you wish to use this connection method when the projector is in standby mode, make sure the

adapter cable

combo like FN + F3 or CRT/LCD key turns the external display on/off. Locate a function key labeled CRT/ LCD or a function key with a monitor symbol on the notebook. Press FN and the labeled function key simultaneously. Refer to your notebook's documentation to find your notebook's key combination.

Monitor Out function is turned on in the SYSTEM SETUP: Advanced menu. See "Standby Settings"

on page 44 for details.

Connection 15

Connecting video source devices

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. The method you choose will most likely depend upon the availability of matching terminals on both the projector and the video source device as described below:

Te r m i na l n a me Terminal appearance Picture quality

HDMI

Best

Component Video

S-Video

Video

Better

Good

Normal

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. See

"Connecting audio" on page 16 for details.

• 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.

Connection16

Operation

Starting up the projector

1. Plug the power cord into the projector and into a power outlet. Turn on the power outlet switch (where fitted). Check that the POWER indicator light on the projector lights orange after power has been applied.

Please use the original accessories (e.g. power cord) only with the device to avoid possible dangers such as electric shock and fire.

2. Press POWER to start the projector. As soon as the lamp lights up, a "Powe r On Ring Tone" will be heard. The POWER indicator light flashes green and stays green when the projector is on.

The start up procedure takes about 30 seconds. In the later stage of start up, a startup logo is projected.

(If necessary) Rotate the focus ring to adjust the image clearness. To turn off the ring tone, see "Turning off the Power On/Off Ring Tone" on page 32

for details.

If the projector is still hot from previous activity, it will run the cooling fan for approximately 90 seconds before energizing the lamp.

3. If the projector is activated for the first time, select your OSD language following the on-screen instructions.

4. If you are prompted for a password, press the arrow keys to enter a six-digit password. See "Utilizing the password

function" on page 21 for details.

5. Switch all of the connected equipment on.

6. The projector will start to search for input signals. The current input signal being scanned appears in the upper left corner of the screen. If the projector doesn't detect a valid signal, the message “No Signal” will continue displaying until an input signal is found.

You can also press SOURCE on the projector or remote control to select your desired input signal. See "Switching input

signal" on page 23 for details.

• If the frequency/resolution of the input signal exceeds the projector's operating range, you will see the

message “Out of Range” displayed on the background screen. Please change to an input signal which is compatible with the projector's resolution or set the input signal to a lower setting. See "Timing chart" on

page 55 for details.

• If no signal is detected for 3 minutes, the projector automatically enters ECO BLANK mode.

Operation 17

Adjusting the projected image

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

Be careful when you press the quickrelease button as it is close to the exhaust vent where hot air comes from.

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

2. Sharpen the image by rotating the focus ring.

Adjusting the projection angle

The projector is equipped with 1 quick-release adjuster foot and 1 rear adjuster foot. These adjusters change the image height and projection angle. To adjust the projector:

1. Press the quick-release button and lift the front of the projector. Once the image is positioned where you want it, release the quick-release button to lock the foot in position.

2. Screw the rear adjuster foot to fine-tune the horizontal angle.

To retract the foot, hold up the projector while pressing the quick-release button, then slowly lower the projector. Screw the rear adjuster foot in a reverse direction.

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. To correct this situation, see

"Correcting keystone" on page 19 for details.

Auto-adjusting the image

In some cases, you may need to optimize the picture quality. To do this, press AUTO on the projector or remote control. 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.

Fine-tuning the image size and clarity

Operation18

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