BenQ Projector HT1085ST User Manual

							HT1075/HT1085ST
Digital Projector
Home Cinema Series
User Manual 
						

							2  Table of contents  
Table of contents
Important safety instructions.......3
Overview ..........................................6
Projector features.................................... 6
Shipping contents...................................... 8
Standard accessories ..................................... 8
Projector exterior view .......................... 9
Controls and functions.......................... 10
Control panel ............................................... 10
Remote control............................................ 11
Installation ..................................... 13
Choosing a location ............................... 13
Obtaining a preferred projected image 
size ............................................................. 14
Projection dimensions ................................ 14
Shifting the projection lens vertically 
(HT1075 only) .............................................. 15
Connection ................................... 16
Connecting with video equipment ..... 17
Connecting HDMI devices......................... 17
Connecting smart devices ......................... 18
Connecting component-video devices ... 19
Connecting video devices .......................... 19
Connecting a computer ............................. 20
Operation...................................... 21
Starting up the projector ...................... 21
Shutting down the projector ............... 22
Securing the projector .......................... 23
Using a security cable lock ........................ 23
Utilizing the password function ................ 23
Selecting an input source ...................... 26
Renaming an input source ......................... 26
Adjusting the projected image............. 27
Adjusting the projection angle .................. 27
Auto-adjusting the image ........................... 27
Fine-tuning the image size and clarity ..... 27
Correcting keystone ................................... 28
Menu Functions............................ 29
About the OSD Menus ......................... 29
Using the Basic OSD menu................ 31
Basic OSD menu - with input signals 
connected.......................................................31
Basic OSD menu - without input signals 
connected.......................................................34
Using the Advanced OSD menu...... 35
Picture menu ...............................................36
Audio Setup menu ....................................40
Display menu ...............................................41
System Setup : Basic menu ..................43
System Setup : Advanced menu ........44
Information menu .....................................46
Advanced OSD menu structure ............47
Maintenance .................................. 49
Care of the projector ........................... 49
Lamp information ................................... 50
Getting to know the lamp hour ................50
Extending lamp life .......................................50
Timing of replacing the lamp .....................51
Replacing the lamp .......................................52
Indicators ................................................. 54
Troubleshooting ..................................... 55
Specifications ........................................... 56
Projector specifications...............................56
Dimensions ....................................................57
Ceiling mount installation ...........................57
Timing chart...................................................58
Warranty and Copyright 
information .................................... 63
Warranty ................................................. 63
Copyright ................................................. 63
Disclaimer ................................................ 63 
						

							  3
  Important safety instructions
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 user manual before you operate your 
projector. Keep this manual in a safe place for future 
reference. 
2. Always place the projector on a level, horizontal 
surface during operation.
- Do not place the projector on an unstable cart, 
stand, or table as it may fall and be damaged.
- Do not place inflammables near the projector. 
- 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.
3. Do not store the projector on end vertically. Doing so 
may cause the projector to fall over, causing injury or 
resulting in damage. 4. Do not place the 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 closed.
- Locations where excessive humidity, dust, 
or cigarette smoke may contaminate optical 
components, shorten the projector’s 
lifespan and darken the screen.
- Locations near fire alarms.
- Locations with an ambient temperature 
above 35°C/95°F.
- Locations where the altitudes are higher 
than 3000 m (10000 feet).
3000 m 
(10000 ft.)
0 m 
(0 ft.) 
						

							4 Important safety instructions  
5. Do not block the vents holes while the projector 
is on (even in standby mode).
- Do not cover the projector with any item.
- Do not place the projector on a blanket, 
bedding or any other soft surface. 9. Do not look straight into the projector lens 
during operation. It may harm your sight. 
6. In areas where the mains power supply voltage 
may fluctuate by ±10 volts, it is recommended 
that you connect the projector through a power 
stabilizer, surge protector or uninterruptible 
power supply (UPS) as appropriate to your 
situation. 10. Do not operate the projector lamp beyond the 
rated lamp life. Excessive operation of lamps 
beyond the rated life could cause a lamp to break 
on rare occasions.
7. Do not step on the projector or place any objects 
upon it.11. 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 place liquids near or on the projector. 
Liquids spilled into the projector will void your 
warranty. If the projector does become wet, 
disconnect it from the power point and call BenQ 
to have the projector repaired.12. Never attempt to replace the lamp assembly until 
the projector has cooled down and is unplugged 
from the power supply.  
						

							  5
  Important safety instructions
13. This projector is capable of displaying inverted 
images for ceiling mount installation. Use only 
BenQs Ceiling Mount Kit for mounting.
Ceiling mounting the projector
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 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.
14. 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. See page 52.
Under no circumstances should you ever undo or 
remove any other covers. Refer servicing only to 
suitably qualified professional service personnel.
Please keep the original packing for possible 
future shipment. If you need to pack your 
projector after use, adjust the projection lens to 
an appropriate position, put the lens cushion 
around the lens, and fit the lens cushion and 
projector cushion together to prevent damage 
during transportation.
15. When you think service or repair is required, 
take the projector only to a suitably qualified 
technician.
Moisture condensation
Never operate the projector immediately after 
moving it from a cold location to a hot location. 
When the projector is exposed to such a change 
in temperature, moisture may condense on the 
crucial internal parts. To prevent the projector 
from possible damage, do not use the projector 
for at least 2 hours when there is a sudden change 
in temperature.
Avoid volatile liquids
Do not use volatile liquids, such as insecticide or 
certain types of cleaner, near the projector. Do 
not have rubber or plastic products touching the 
projector for a long time. They will leave marks on 
the finish. If cleaning with a chemically treated 
cloth, be sure to follow the cleaning product’s 
safety instructions.
Disposal
This product contains the following materials 
which are harmful to human bodies and 
environment.
•   Lead, which is contained in solder. 
•   Mercury, which is used in the lamp.
To dispose of the product or used lamps, consult 
your local environment authorities for regulations. 
						

							6 Overview  
Overview
Projector features
• Full HD compatible
The projector is compatible with Standard Definition TV (SDTV) 480i, 576i, Enhanced Definition 
television (EDTV) 480p, 576p and High Definition TV (HDTV) 720p, 1080i/p 60Hz formats, with the 
1080p format providing a true 1:1 image reproduction.
•  High picture quality
The projector provides excellent picture quality due to its high resolution, excellent home theater 
brightness, high contrast ratio, vivid color and rich gray-scale reproduction.
• High brightness
The projector features super high brightness to achieve excellent picture quality in ambient light 
conditions, outperforming ordinary projectors.
•  Vivid color reproduction
The projector features a 6-segment color wheel to produce realistic color depth and range 
unattainable with lesser segment color wheels.
• Rich gray-scale
When viewed in a darkened environment, the automatic gamma control provides excellent gray-scale 
display which reveals details in shadows and in night or darkened scenes.
• 2D Keystone
The projector offers horizontal (side to side) keystone correction, enabling a wider projector 
installation area. When the projector is placed off center, the 2D keystone correction feature gives 
you a wider projector installation flexibility by correcting the trapezoid effect using horizontal and 
vertical adjustments.
• Dual OSD
Two types of OSD menus are designed for different usage customs: the Basic OSD is intuitive and 
consumerlike, while the Advanced OSD offers traditional usability. 
•  Wide variety of inputs and video formats
The projector supports a wide variety of inputs for connection to your video, computer, and smart 
equipment, including component video, composite video, personal computer (both Mac and PC), 
HDMI source, smart device that supports MHL, and an output trigger for connection to automated 
screen and environment lighting systems. 
•  ISF certified calibration control
To reach a higher standard of performance, the projector incorporates ISF NIGHT and ISF DAY 
mode settings in its OSD menus, which requires professional calibration service from authorized ISF 
installers.
• 3D function 
To enjoy the 3D movies, videos, and sporting events in a more realistic way by presenting the depth 
of the images through HDMI.
• Built-in chamber speaker(s)
Built-in speaker(s) providing mixed mono audio when an audio input is connected. 
						

							  7
  Overview
•  Intuitive lens shift (HT1075)
The intuitive control over lens shift lever provides flexibility in setting-up your projector.
•  Short throw ratio (HT1085ST)
The short throw ratio projection provides 1080p picture quality with shorter projection distance.
• SmartEco
SmartEco™ technology saves lamp power consumption up to 70% depending on the content 
brightness level when SmartEco mode is selected.
•  Wireless FHD Kit supported (optional accessory)
Refer to the kit’s documentation to learn how to use it. 
						

							8 Overview  
Shipping contents
Carefully unpack and verify that you have the items below. Some of the items may not be available 
depending on your region of purchase. Please check with your place of purchase.
Standard accessories
Some of the accessories may vary from region to region.
* The warranty card is only supplied in some specific regions. Please consult your dealer for detailed 
information.
Optional accessories
HT1075 HT1085ST
ProjectorRemote controlBatteries
Warranty card*User manual CD
 
Quick start guidePower cable
Wireless FHD Kit (WDP01) 
						

							  9
  Overview
Projector exterior view
Front and upper side view 
1. Control panel (See Control panel for 
details.)
2. Lamp cover
3. Vent (heated air exhaust)
4. Quick-release button
5. Lens cap
6. Lens shift lever
7. Focus and Zoom ring
8. Vent (cool air intake)
9. Speaker grill
10. Front IR sensor
11. Projection lens
12. HDMI input port
13. MHL/HDMI dual mode port
Also can be used for charging the 
connected MHL compatible smart 
device as long as the power is fed to 
the projector.
14. 12VDC output terminal
Used to trigger external devices such 
as an electric screen or light control, 
etc. Consult your dealer for how to 
connect these devices.
15. USB Type-A port
Used for charging the receiver box of 
the Wireless FHD Kit (WDP01) 
(optional accessory). 
16. Mini USB port
Used for service.
17. RGB (PC)/Component video (YPbPr/
YCbCr) signal input jack
18. RS-232 control port
Used to interface with a PC or home 
theater control/automation system.
19. Component Video inputs (RCA)
support Y/P
B/PR or Y/CB/CR video 
signal
20. Video input jack
21. Audio (L/R) input jacks
22. Audio input jack
23. Audio output jack
24. AC Power cable inlet
25. Rear adjuster foot
26. Ceiling mount holes
27. Wireless FHD Kit mount holes
28. Kensington lock slot
Rear and lower side view 
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HT1085ST
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See Connecting with video equipment for connection 
details. 
						

							10 Overview  
Controls and functions
Control panel
1. Focus ring
Adjusts the focus of the projected image.
2. Zoom ring
Adjusts the size of the image.
3. POWER indicator light
Lights up or flashes when the projector is 
under operation.
4. SOURCE
Displays the source selection bar.
5. Top IR remote sensor
6. POWER
Toggles the projector between standby mode 
and on.
7. Keystone/Arrow keys (  /  ,   /  )
Manually corrects distorted images resulting 
from an angled projection.
When the On-Screen Display (OSD) menu is 
activated, the #7 and #12 keys are used as 
directional arrows to select the desired menu 
items and to make adjustments.
8. BACK
Goes back to previous OSD menu, exits and 
saves menu settings. 
9. TEMPerature warning light
Lights up red if the projectors temperature 
becomes too high.
10. LAMP indicator light
Indicates the status of the lamp. Lights up or 
flashes when the lamp has developed a 
problem.
11. AUTO
Automatically determines the best picture 
timings for the displayed image.12. Keystone/Arrow keys (  /  ,   /  )
Manually corrects distorted images resulting 
from an angled projection.
When the On-Screen Display (OSD) menu is 
activated, the #7 and #12 keys are used as 
directional arrows to select the desired menu 
items and to make adjustments.
13. OK/MODE
•  Selects an available picture mode.
•  Confirms the selected On-Screen Display 
(OSD) menu item.
14. MENU
•  Accesses the On-Screen Display (OSD) menu.
•  Goes back to previous OSD menu, exits and 
saves menu settings. 
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