BenQ HT5550 User manual

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Table of Contents
Important safety instructions .............................................................................................. 2
Shipping contents ....................................................................................................................................... 4
Specifications ............................................................................................................................................... 4
Projector dimensions ................................................................................................................................ 5
Terminals ...................................................................................................................................................... 5
Projection dimensions ............................................................................................................................... 7
Ceiling mount installation diagram ......................................................................................................... 8
RS-232 command .................................................................................................................. 9
RS-232 pin assignment .............................................................................................................................. 9

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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 the user manual / installation guide and marked on the product.
1. Please read the user manual / installation guide 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.
4. Always open the lens shutter (if any) or remove the lens cap (if any) when the
projector light source is on.
5. The light source becomes extremely hot during operation.
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 light source, use the blank function.
8. Do not operate light sources beyond the rated light source life.
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.
Under no circumstances should you ever undo or remove any other covers. Refer servicing only to
suitably qualified professional service personnel.
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.
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.
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.

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17. 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.
18. This product is capable of displaying inverted images for ceiling 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.
- 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).
Hg - Lamp contains mercury. Manage in accordance with local disposal laws. See www.lamprecycle.org.
Cooling notice
Risk Group 2
1. According to the classification of photobiological safety of light
sources and light source 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 light source. May be harmful to the
eyes.
4. As with any bright source, do not stare into the direct beam.
Ventilation Caution for installation
Avoid using the projector
in a poorly ventilated or
confined space.
For proper ventilation of the projector, make sure to leave some space
around the projector as shown in the illustration below:
• Table • Table
• Ceiling • Stacking
Air inlet
Air outlet
50 cm
above
70 cm
above
50 cm
above 50 cm above
30 cm
above 50 cm
above
Minimum 100 mm

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Product information
Shipping contents
Optional accessories
Specifications
Projector Remote control with batteries Power cord
Installation guide User manual CD Warranty card*
• 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.
1. Spare lamp kit
2. Ceiling mount kit
3. BenQ WDP02
4. BenQ 3D glasses
Display system 1-CHIP DMD
Resolution 3840 x 2160 with XPR
Light source 240 W lamp
Brightness 1800 Lumens
Power consumption 405 W (Max); < 0.5 W (Standby)
Weight 6.5 Kg + 100 g (14.33 + 0.22 lbs)
Installation Guide
Digital Projector

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Projector dimensions
492 mm (W) x 168.5 mm (H) x 349 mm (D))
Te r m i n a l s
1. LAN (10/100M)
For connection to a RJ45 Cat5/Cat6
Ethernet cable to control the projector
through a network.
2. SPDIF
For digital audio output connection.
3. IR IN
For use with an IR extender cable to
ensure better signal reception from the
remote control.
4. 12V TRIGGER
Triggers external devices such as an
electric screen or light control, etc.
5. MEDIA READER (USB 3.0 Type-A)
Connects to a USB flash drive for reading
multimedia files.
6. HDMI 1 (Version 2.0b)
For connection to an HDMI source.
7. HDMI 2 (Version 2.0b)
For connection to an HDMI source.
8. USB MINI-B
For firmware upgrade only.
9. RS-232
Standard 9-pin D-sub interface for connection to a
PC control system and projector maintenance.
10. MEDIA READER (USB 2.0 Type-A)
Connects to a USB flash drive for reading
multimedia files.
11. 2.5A (USB 2.0 Type-A, Power Supply)
Supports 2.5A power supply.
12. AUDIO OUT
For connection to external speakers.
Unit: mm
492
349 168.5
11 12 10
1 2 3
4
5 6 7 8 9

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Remote control
On Off
SOURCE
Up
Left
OK
BACK
3D
CONTRAST
PIC MODE
COLOR TEMP
GAMMA
SHARP
TEST PATTERN
DEFAULT
Right
Down MENU
CINEMAMASTER
INVERT
DYNAMIC IRIS
LIGHT MODE
COLOR MANAGE
ECO BLANK
LIGHT
HDR
BRIGHT
Keystone
MOTION ENHANCER

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Installation
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) Vertical offset
(Lowest/Highest lens
position) (mm)
Diagonal
H (mm) W (mm)
Min length
Average
Max length
Inch mm (max.
zoom)
(min.
zoom)
60 1524 747 1328 1800 2348 2896 75
70 1778 872 1550 2100 2739 3378 87
80 2032 996 1771 2400 3130 3861 100
90 2286 1121 1992 2700 3522 4343 112
100 2540 1245 2214 3000 3913 4826 125
110 2794 1370 2435 3300 4304 5309 137
120 3048 1494 2657 3600 4696 5791 149
130 3302 1619 2878 3900 5087 6274 162
140 3556 1743 3099 4200 5478 6757 174
150 3810 1868 3321 4500 5870 7239 187
160 4064 1992 3542 4800 6261 7722 199
170 4318 2117 3763 5100 6652 8204 212
180 4572 2241 3985 5400 7043 8687 224
190 4826 2366 4206 5700 7435 9170 237
200 5080 2491 4428 6000 7826 9652 249
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.
• Ceiling installation must be done by a qualified professional. Contact your dealer for more information. It is not
recommended you install the projector yourself.
• Only use the projector on a solid, level surface. Serious injury and damage can occur if the projector is dropped.
• Do not use the projector in an environment where extreme temperature occurs. The projector must be used at
temperatures between 32 degrees Fahrenheit (0 degrees Celsius) and 104 degrees Fahrenheit (40 degrees
Celsius).
• Screen damage will occur if the projector is exposed to moisture, dust or smoke.
• Do not cover the vents on the projector. Proper ventilation is required to dissipate heat. Damage to the projector
will occur if the vents are covered.
H
W
Projection distance
Center of lens
Screen16:9 Screen diagonal
Vertical offset

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Shifting the projection lens
Ceiling mount installation diagram
Vertical shift
Vertical shift
Vertical shift
Max. 0.65V
Height of projected image
1V
Max. 0.65V
Projection range
Width of projected image
Shift to
right
Desk-front
projection
Ceiling mount-front
projection
Max. 0.65V
Max. 0.65V
Max. 0.28H Max. 0.28H
Shift to
left
1V
1H
Height of projected image
150
280
Ceiling mount screw: M4
(Max L = 25 mm; Min L = 20 mm)
Unit: mm

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RS-232 command
RS-232 pin assignment
No. Serial No. Serial
1NC 6NC
2RX 7RTSZ
3TX 8CTSZ
4NC 9NC
5GND
Function Ty p e Operation ASCII
Power
Write Power On <CR>*pow=on#<CR>
Write Power Off <CR>*pow=off#<CR>
Read Power Status <CR>*pow=?#<CR>
Source Selection
Write COMPUTER/YPbPr <CR>*sour=RGB#<CR>
Write COMPUTER 2/YPbPr2 <CR>*sour=RGB2#<CR>
Write COMPUTER 3/YPbPr3 <CR>*sour=RGB3#<CR>
Write Component <CR>*sour=ypbr#<CR>
Write Component2 <CR>*sour=ypbr2#<CR>
Write DVI-A <CR>*sour=dviA#<CR>
Write DVI-D <CR>*sour=dvid#<CR>
Write HDMI (MHL) <CR>*sour=hdmi#<CR>
Write HDMI 2 (MHL2) <CR>*sour=hdmi2#<CR>
Write Composite <CR>*sour=vid#<CR>
Write S-Video <CR>*sour=svid#<CR>
Write Network <CR>*sour=network#<CR>
Write USB Display <CR>*sour=usbdisplay#<CR>
Write USB Reader <CR>*sour=usbreader#<CR>
Write HDbaseT <CR>*sour=hdbaset#<CR>
Write DisplayPort <CR>*sour=dp#<CR>
Write 3G-SDI <CR>*sour=sdi#<CR>
Write Smart System <CR>*sour=smartsystem#<CR>
Read Current source <CR>*sour=?#<CR>
Audio Control
Write Mute On <CR>*mute=on#<CR>
Write Mute Off <CR>*mute=off#<CR>
Read Mute Status <CR>*mute=?#<CR>
Write Volume + <CR>*vol=+#<CR>
Write Volume - <CR>*vol=-#<CR>
Write Volume level for customer <CR>*vol=value#<CR>
Read Volume Status <CR>*vol=?#<CR>
Write Mic. Volume + <CR>*micvol=+#<CR>
Write Mic. Volume - <CR>*micvol=-#<CR>
Read Mic. Volume Status <CR>*micvol=?#<CR>
Audio source select
Write Audio Pass Through off <CR>*audiosour=off#<CR>
Write Audio-Computer1 <CR>*audiosour=RGB#<CR>
Write Audio-Computer2 <CR>*audiosour=RGB2#<CR>
Write Audio-Video/S-Video <CR>*audiosour=vid#<CR>
Write Audio-Component <CR>*audiosour=ypbr#<CR>
Write Audio-HDMI <CR>*audiosour=hdmi#<CR>
Write Audio-HDMI2 <CR>*audiosour=hdmi2#<CR>
Read Audio Pass Status <CR>*audiosour=?#<CR>
12345
6789

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Function Ty p e Operation ASCII
Picture Mode
Write Dynamic <CR>*appmod=dynamic#<CR>
Write Presentation <CR>*appmod=preset#<CR>
Write sRGB <CR>*appmod=srgb#<CR>
Write Bright <CR>*appmod=bright#<CR>
Write Living Room <CR>*appmod=livingroom#<CR>
Write Game <CR>*appmod=game#<CR>
Write Cinema (Rec.709) <CR>*appmod=cine#<CR>
Write Standard/Vivid <CR>*appmod=std#<CR>
Write Football <CR>*appmod=football#<CR>
Write Football Bright <CR>*appmod=footballbt#<CR>
Write DICOM <CR>*appmod=dicom#<CR>
Write THX <CR>*appmod=thx#<CR>
Write Silence mode <CR>*appmod=silence#<CR>
Write DCI-P3 mode (D. Cinema) <CR>*appmod=dci-p3#<CR>
Write Vivid <CR>*appmod=vivid#<CR>
Write Infographic <CR>*appmod=infographic#<CR>
Write User1 <CR>*appmod=user1#<CR>
Write User2 <CR>*appmod=user2#<CR>
Write User3 <CR>*appmod=user3#<CR>
Write ISF Day <CR>*appmod=isfday#<CR>
Write ISF Night <CR>*appmod=isfnight#<CR>
Write 3D <CR>*appmod=threed#<CR>
Write Sport <CR>*appmod=sport#<CR>
Write HDR <CR>*appmod=hdr#<CR>
Write HLG <CR>*appmod=hlg#<CR>
Read Picture Mode <CR>*appmod=?#<CR>
Picture Setting
Write Contrast + <CR>*con=+#<CR>
Write Contrast - <CR>*con=-#<CR>
Write Set Contrast value <CR>*con=value#<CR>
Read Contrast value <CR>*con=?#<CR>
Write Brightness + <CR>*bri=+#<CR>
Write Brightness - <CR>*bri=-#<CR>
Write Set Brightness value <CR>*bri=value#<CR>
Read Brightness value <CR>*bri=?#<CR>
Write Color + <CR>*color=+#<CR>
Write Color - <CR>*color=-#<CR>
Write Set Color value <CR>*color=value#<CR>
Read Color value <CR>*color=?#<CR>
Write Sharpness + <CR>*sharp=+#<CR>
Write Sharpness - <CR>*sharp=-#<CR>
Write Set Sharpness value <CR>*sharp=value#<CR>
Read Sharpness value <CR>*sharp=?#<CR>
Write Flesh Tone + <CR>*fleshtone=+#<CR>
Write Flesh Tone - <CR>*fleshtone=-#<CR>
Write Set Flesh Tone value <CR>*fleshtone=value#<CR>
Read Flesh Tone value <CR>*fleshtone=?#<CR>
Write Color Temperature-Warmer <CR>*ct=warmer#<CR>
Write Color Temperature-Warm <CR>*ct=warm#<CR>
Write Color Temperature-Normal <CR>*ct=normal#<CR>
Write Color Temperature-Cool <CR>*ct=cool#<CR>
Write Color Temperature-Cooler <CR>*ct=cooler#<CR>
Write Color Temperature-lamp native <CR>*ct=native#<CR>
Read Color Temperature Status <CR>*ct=?#<CR>
Write Aspect 4:3 <CR>*asp=4:3#<CR>