LS740HD

Package Contents

Number	Description
1	Projector
2	Remote Control
3	Batteries
4	Quick Start Guide
5	Power Cord
6	Power Adapter

Projector Overview

Number	Description
1	Keypad
2	Focus Ring
3	Zoom Ring
4	Front IR
5	Top IR
6	DC IN
7	Lens
8	I/O Ports
9	Vent (inlet)
10	Vent (outlet)

NOTE: Do not block projector intake and exhaust vents.

I/O Ports

Number	Port	Description
1	DC IN	DC IN socket
2	AUDIO OUT	Audio signal output socket
3	USB (5V/1.5A Out) (Service)	USB Type A port for power and service
4	RS-232	RS-232 control port
5	HDMI 1 / HDMI 2	HDMI port

Keypad

Icon	Button	Description
	Power	Toggles the projector between standby mode and Power On.
	Keystone	Manually corrects distorted images resulting from an angled projection.
	Navigation	Selects the desired menu items and makes adjustments when the On-Screen Display (OSD) Menu is activated.
	Menu/Exit	Turns on or off the On-Screen Display (OSD) Menu.
	Source	Displays the input source selection bar.
	Information	Displays the INFORMATION menu.
	Enter	Enacts the selected On-Screen Display (OSD) Menu item when the OSD Menu is activated.
	Auto	Automatically determines the best picture timings for the displayed image.

Indicator Lights

Indicator Light	Description
	Power indicator light
	Light Source indicator light
	Temperature indicator light

Overview

Remote Control

Number	Button	Description
1	AV Mute	Hides the screen picture and volume mute.
2	Power	Turns the projector On or Off.
3	Auto Sync	Automatically determines the best picture timings for the displayed image.
4	Source	Displays the input source selection bar.
5	Navigation Buttons	Navigates and selects the desired menu items and make adjustments.
6	Enter	Confirms the selection.
7	Menu/Exit	Turns the On-Screen Display (OSD) Menu On or Off. Go back to a previous OSD Menu. Exit and Save menu settings.
8	Brightness	Displays the brightness mode selection bar.
9	Volume Up	Increase the volume level.
10	Keystone	Manually correct distorted images.
11	Volume Down	Decrease the volume level.
12	Video	Unsupported Button
13	VGA	Unsupported Button
14	HDMI	Selects the HDMI 1 or HDMI 2 input source.
15	Aspect	Displays the aspect ratio selection bar.
16	Page Up	Unsupported Button
17	Zoom In	Increases the projected image size.
18	Freeze	Freeze the projected image.
19	Zoom Out	Reduces the projected image size.
20	Page Down	Unsupported Button
21	Display Mode	Displays the color mode selection bar.
22	Mouse Mode	Unsupported Button
23	Mute	Mute/Unmute.

Remote Control - Receiver Range

IR Receiver Location

To ensure proper function of the remote control follow the steps below:

1. The remote control must be held at an angle within 30° perpendicular to the projector’s IR remote control sensor(s).
2. The distance between the remote control and the sensor(s) should not exceed 8 m (26 ft.).

NOTE: Refer to the illustration for the location of the infrared (IR) remote control sensor(s).

Replacing the Batteries

1. Remove the battery cover from the bottom of the remote control by pressing the finger grip and sliding it across.
2. Remove any existing batteries (if necessary) and install two AAA batteries.

NOTE: Observe the battery’s polarities as indicated.

3. Replace the battery cover by aligning it with the base and pushing it back into position.


NOTE:

• Avoid leaving the remote control and batteries in excessive heat or a humid environment.
• Replace only with the same or equivalent type recommended by the battery manufacturer.
• If the battery is drained or if you will not be using the remote control for an extended period of time, remove the battery to avoid damage to the remote control.
• Dispose of used batteries according to the manufacturer’s instructions and local environment regulations for your region.

Choosing a Location - Projector Orientation

Personal preference and room layout will decide the installation location. Consider the following:

• Size and position of your screen.
• Location of a suitable power outlet.
• Location and distance between the projector and other equipment.

The projector is designed to be installed in one of the following locations:

• 

  Desk Front

• 

  Ceiling Front

• 

  Desk Rear

• 

  Ceiling Rear

Location	Description
Desk Front	The projector is placed near the floor in front of the screen.
Ceiling Front	The projector is suspended upside-down from the ceiling in front of the screen.
Desk Rear	The projector is placed near the floor behind the screen.
Ceiling Rear	The projector is suspended upside-down from the ceiling behind the screen.

Projection Dimensions

16:9 Image on a 16:9 Screen

NOTE: (e) = Screen | (f) = Center of Lens

(a) Screen Size		(b) Projection Distance				(c) Image Height		(d) Vertical Offset
		min.		max.
in.	mm	in.	mm	in.	mm	in.	mm	in.	mm
30	762	29.55	750	38.44	976	14.71	374	2.35	60
40	1016	39.40	1001	51.25	1302	19.61	498	3.14	80
50	1270	49.24	1251	64.06	1627	24.51	623	3.92	100
60	1524	59.09	1501	76.87	1953	29.42	747	4.71	120
70	1778	68.94	1751	89.69	2278	34.32	872	5.49	139
80	2032	78.79	2001	102.50	2603	39.22	996	6.28	159
90	2286	88.64	2251	115.31	2929	44.12	1121	7.06	179
100	2540	98.49	2502	128.12	3254	49.03	1245	7.84	199
110	2794	108.34	2752	140.93	3580	53.93	1370	8.63	219
120	3048	118.19	3002	153.75	3905	58.83	1494	9.41	239
130	3302	128.03	3252	166.56	4231	63.73	1619	10.20	259
140	3556	137.88	3502	179.37	4556	68.64	1743	10.98	279
150	3810	147.73	3752	192.18	4881	73.54	1868	11.77	299
200	5080	196.98	5003	256.24	6509	98.05	2491	15.69	398
250	6350	246.22	6254	320.30	8136	122.57	3113	19.61	498
300	7620	295.46	7505	384.36	9763	147.08	3736	23.53	598

NOTE:

• These figures are for reference purposes only. Please refer to the actual projector for the precise dimensions.
• It is recommended that if you intend to permanently install the projector to physically test the projection size and distance using the actual projector before you permanently install it.

16:9 Image on a 4:3 Screen

NOTE: (e) = Screen | (f) = Center of Lens

(a) Screen Size		(b) Projection Distance				(c) Image Height		(d) Vertical Offset
		min.		max.
in.	mm	in.	mm	in.	mm	in.	mm	in.	mm
30	762	27.12	689	35.28	896	13.50	343	2.16	55
40	1016	36.16	918	47.04	1195	18.00	457	2.88	73
50	1270	45.20	1148	58.80	1494	22.50	572	3.60	91
60	1524	54.24	1378	70.56	1792	27.00	686	4.32	110
70	1778	63.28	1607	82.32	2091	31.50	800	5.04	128
80	2032	72.32	1837	94.08	2390	36.00	914	5.76	146
90	2286	81.36	2067	105.84	2688	40.50	1029	6.48	165
100	2540	90.40	2296	117.60	2987	45.00	1143	7.20	183
110	2794	99.44	2526	129.36	3286	49.50	1257	7.92	201
120	3048	108.48	2755	141.12	3584	54.00	1372	8.64	219
130	3302	117.52	2985	152.88	3883	58.50	1486	9.36	238
140	3556	126.56	3215	164.64	4182	63.00	1600	10.08	256
150	3810	135.60	3444	176.40	4481	67.50	1715	10.80	274
200	5080	180.80	4592	235.20	5974	90.00	2286	14.40	366
250	6350	226.00	5740	294.00	7468	112.50	2858	18.00	457
300	7620	271.20	6888	352.80	8961	135.00	3429	21.60	549

NOTE:

• These figures are for reference purposes only. Please refer to the actual projector for the precise dimensions.
• It is recommended that if you intend to permanently install the projector to physically test the projection size and distance using the actual projector before you permanently install it.

Mounting the Projector

NOTE: If you buy a third party mount, please use the correct screw size. Screw size can vary depending on the thickness of the mounting plate.

1. To ensure the most secure installation, please use a ViewSonic® wall or ceiling mount.
2. Ensure the screws used to attach the mount to the projector meet the following specifications:

• Screw type: M4 x 8
• Maximum Screw Length: 8 mm

CAUTION

• Avoid installing the projector near a heat source or air conditioner.
• Keep at least a 10 cm (3.9 in.) gap between the ceiling and the bottom of the projector.

Using the Security Bar

To help prevent the projector from being stolen, use a security slot locking device to secure the projector to a fixed object.

Connecting to Power

Connect the power cord to the power adapter. Connect the power adapter to the DC IN jack at the rear of the projector. Plug the power cord into a power outlet.

NOTE: When installing the projector, incorporate a readily accessible disconnect device in the fixed wiring, or connect the power plug to an easily accessible outlet near the unit. If a fault should occur during operation of the projector, use the disconnect device to switch off the power supply, or disconnect the power plug.

Connecting to External Devices

HDMI Connection

Connect one end of an HDMI cable to the HDMI port of your video device. Then connect the other end of the cable to the HDMI 1/2 port of your projector.

Audio Connection

To play audio from the projector through an external speaker, connect one end of an audio cable to the external speaker, and the other end to the projector’s AUDIO OUT port.

USB Connection

USB Type A Connection

The USB port is for supplying power (e.g., dongles) and service needs.

NOTE: The USB port does not supply power when the projector is in standby mode.

RS-232 Connection

When you use a RS-232 serial port cable to connect the projector to an external computer certain functions can be controlled remotely by the PC, including Power On/Off, Volume adjustment, Input select, Brightness, and more.

Starting the Projector

Ensure the projector’s power cord is properly connected to a power outlet. Press the Power button on the projector or remote control to turn on the projector. NOTE: The Power Indicator Light will be flashing blue during startup. The first time the projector is turned on, you will be prompted to select the preferred language, projection orientation, and other settings.

Selecting an Input Source

The projector can be connected to multiple devices at the same time. However, it can only display one full screen at a time.

When Auto Source is On, the projector will automatically search for input sources. If multiple sources are connected, press the Source button on the projector or remote control to select the desired input.

NOTE: Ensure the connected sources are also turned on.

Adjusting the Projected Image

Adjusting the Projector’s Height and Projection Angle

The projector is equipped with three (3) adjustment feet. Adjusting the feet will change the projector’s height and the vertical projection angle.

Adjusting the Focus, Keystone, and Zoom

You can improve and adjust the clarity and position of the image by adjusting the Focus Ring, Keystone Keys, or Zoom Ring.

Shutting Down the Projector

1. Press the Power button on the projector or remote control and a “power off message” will appear.
2. Press the Power button again to confirm and shut down the projector.
3. The Power Indicator Light will turn solid red and enter standby mode.

On-Screen Display (OSD) Menu

The projector has multilingual on-screen display menus that allow you to make image adjustments and change a variety of settings.

Menu		Description
Display		Adjust Image, 3D, Aspect Ratio, Zoom, and Keystone settings.
Audio		Adjust the volume level or mute.
Setup		Adjust Projection, Power, Security, Language, Input Source, etc. settings.
Information		View projector information.

Menu Navigation

The projector has multilingual on-screen display menus that allow for image and settings adjustment.

1. To open the On-Screen Display (OSD) Menu, press the Menu/Exit button on the projector or the remote control.
2. When the OSD is displayed, use the Navigation buttons to select any item in the main menu. While making a selection on a particular page, press the Enter button on the projector or the remote control to enter a sub-menu.
3. Use the Navigation buttons to select the desired item in the sub-menu and then press Enter to view further settings. Adjust the settings by using the Navigation buttons.
4. Select the next item to be adjusted in the sub-menu and adjust as described above.
5. Press Enter to confirm, and the screen will return to the main menu.
6. To exit, press the Menu/Exit button again. The OSD menu will close and the projector will automatically save the new settings.

On-Screen Display (OSD) Menu Tree

Sub-menu	Menu Option
Image Settings	Display Mode	Presentation
		Bright
		Cinema
		Gaming
		User
		3D
	Brightness	(-/+, -50~50)
	Contrast	(-/+, -50~50)
	Sharpness	(-/+, 1~15)
	Color	(-/+, -50~50)
	Tint	(-/+, -50~50)
	Gamma	Film
		Video
		Graphics
		Standard (2.2)
	Color Settings	Brilliant Color™	(-/+, 1~10)
		Color Temperature	Warm
			Standard
			Cool
			Cold
		Color Matching	Color	Red
				Green
				Blue
				Cyan
				Yellow
				Magenta
				White
			Hue/R	(-/+, -50~50)
			Saturation/G	(-/+, -50~50)
			Gain/B	(-/+, -50~50)
			Reset
			Exit
		Color Space	Auto
			RGB (0~255)
			RGB (16~235)
			YUV
	Brightness Mode	Dynamic Black
		Eco
		Power 100%~50%
	Reset
3D	3D Mode	Off
		On
	3D Format	Auto
		SBS
		Top and Bottom
		Frame Sequential
	3D Sync Invert	Off
		On
Aspect Ratio	4:3
	16:9
	Full
	L.BOX
	Auto
Zoom	(-/+, -5~25)
Keystone	Four Corners	Top-Left
		Top-Right
		Bottom-Left
		Bottom-Right
	H. Keystone	(-/+, -30~30)
	V. Keystone	(-/+, -30~30)
	Auto Keystone
	Reset

Sub-menu	Menu Option
Mute	Off
	On
Volume	(-/+, 0~10)

Sub-menu	Menu Option
Projection	Desk Front
	Desk Rear
	Ceiling Front
	Ceiling Rear
Power Settings	Direct Power On	Off
		On
	Signal Power On	Off
		On
	Auto Power Off	(-/+, 0~180) minutes
Security	Security	Off
		On
	Security Timer	Month	(-/+, 0~12)
		Day	(-/+, 0~30)
		Hour	(-/+, 0~24)
	Change Password
HDMI CEC	HDMI CEC	Off
		On
Test Pattern	Test Pattern	Off
		Green Grid
		Magenta Grid
		White Grid
		White
		Test Card
Options	Language	English
		Deutsch
		Français
		Italiano
		Español
		Português
		Polski
		Nederlands
		Svenska
		Norsk/Dansk
		Suomi
		ελληνικά
		繁體中文
		簡体中文
		日本語
		한국어
		Русский
		Magyar
		Čeština
		يبرع
		ไทย
		Türkçe
		یسراف
		Tiếng Việt
		Bahasa
		Indonesia
		Română
		Slovenčina
	Auto Source	Off
		On
	High Altitude	Off
		On
	Keypad Lock	Off
		On
	Logo	Default
		User
Reset	Reset to Default

Sub-menu	Menu Option
Serial Number
Source
Resolution
Refresh Rate
Display Mode
Light Source Hours
Brightness Mode
Firmware Version	System
	MCU

Display Menu

Menu	Description
Image Settings	Display Mode There are several predefined display modes that you can choose from to suit your viewing preference. Mode Description Presentation Suitable for most presenting needs for business and education environments. Bright Suitable for bright, well-lit environments. Cinema Provides the best balance of detail and colors for watching movies. Gaming Optimizes your projector for maximum contrast and vivid colors allowing you to see shadow detail when playing games. User User’s custom settings. 3D Optimized for 3D content. NOTE: 3D glasses are needed.
	Brightness The higher the value, the brighter the image. Lower values will result in a darker image.
	Contrast Use this to set the peak white level after you have previously adjusted the Brightness setting to suit your selected input and viewing environment.
	Sharpness A high value results in a sharper picture; a low value softens the picture.
	Color Adjust an image from black and white to fully saturated color.
	Tint The higher the value, the more greenish the picture becomes. The lower the value, the more reddish the picture becomes.
	Gamma Reflects the relationship between input source and picture brightness.
	Color Settings Setting Description Brilliant Color™ A color-processing algorithm and enhancements to enable higher brightness while providing true, more vibrant colors in picture. Color Temperature Select from Warm, Standard, Cool, or Cold. Color Matching Only in permanent installations with controlled lighting levels such as: boardrooms, lecture halls, or home theaters should Color Matching be considered. Color Matching provides fine color control adjustment to allow for more accurate color reproduction, should you require it. If you have purchased a test disc, which contains various color test patterns and can be used to test the color presentation on monitors, TVs, projectors, etc., you can project any image from the disc on the screen and enter the Color Matching menu to make adjustments. Color Space Select from Auto, RGB (0~255), RGB (16~235), and YUV color space.
	Brightness Mode Mode Description Dynamic Black Automatically adjust the picture brightness in order to give optimum contrast performance. Eco Dim the light output, lowering power consumption. Power Select the power percentage (50%~100%) for brightness mode.
	Reset Return current display mode settings (Brightness, Contrast, Sharpness, Color, Tint, Gamma, Brilliant Color, Color Temperature, Color Matching, Color Space, Brightness Mode) to default values.
3D	3D Mode Enable or disable the 3D function.
	3D Format Select the 3D content format. NOTE: A Blu-ray 3D source will be detected automatically, and options will not be selectable. Option Description Auto When a 3D identification signal is detected, the 3D format is selected automatically. SBS (Side-by-Side) Display in Side-by-Side format. Top and Bottom Display in Top and Bottom format. Frame Sequential Display in Frame Sequential format.
	3D Sync Invert Enable or disable the 3D Sync Invert function.
Aspect Ratio	Select the aspect ratio of the projected image. Aspect Ratio Description 4:3 Scales an image so that it is displayed in the center of the screen with a 4:3 aspect ratio. This is most suitable for 4:3 images like computer monitors, standard definition TV, and 4:3 aspect DVD movies, as it displays them without aspect alteration. 16:9 Scales an image so that it is displayed in the center of the screen with a 16:9 aspect ratio. This is most suitable for images which are already in a 16:9 aspect, like high definition TV. L.BOX For non-16:9 letterbox source and if you use an external 16:9 lens to display 2.35:1 aspect ratio in full resolution. Full Extend the image to fully fill the screen. Auto Scales an image proportionally to fit the projector’s native resolution in its horizontal width. This is suitable for the incoming image which is neither 4:3 nor 16:9 and you want to make the most use of the screen without altering the image’s aspect ratio.
Zoom	Reduce or magnify the projected image.
Keystone	Option Description Four Corners Adjust each corner to make a square image when the projection surface is not level. NOTE: While adjusting the Four Corners, the Aspect Ratio, Edge Mask, Image Shift, and Zoom menus will be disabled. To enable them, reset the Keystone settings to default. H. Keystone Adjust image distortion horizontally. V. Keystone Adjust image distortion vertically. Auto Keystone Automatically correct the keystone. Reset Return the Keystone settings to default.

Audio Menu

Menu	Description
Mute	Temporarily turn off the sound.
Volume	Adjust the volume level.

Setup Menu

Menu	Description
Projection	Select the preferred projection: Front, Rear, Ceiling-Top, and Rear-Top.
Power Settings	Direct Power On Automatically power on the projector when AC power is supplied, without pressing the Power button on the projector or the remote control.
	Signal Power On Automatically power on the projector when a signal is detected, without pressing the Power button on the projector or on the remote control.
	Auto Power Off A countdown timer will start when there is no signal being sent to the projector. The projector will automatically power off when the countdown has finished (in minutes).
Security	Security Enable or disable a password prompt before using the projector. NOTE: The default password is: 1234
	Security Timer Set the amount of time the projector can be used. Once this time has elapsed you will be requested to enter your password again.
	Change Password Set or modify the password.
HDMI CEC	When you connect HDMI CEC-compatible devices to the projector with HDMI cables, you can control them on the same power on or power off status using the HDMI CEC control feature in the projector’s OSD. This lets one device or multiple devices in a group power on or power off via HDMI CEC in a typical configuration. NOTE: In order for the CEC function to work properly, make sure that the device is correctly connected to the HDMI input of the projector via an HDMI cable, and its CEC function is turned on. Depending on the connected device, the CEC function may not work.
Test Pattern	Select the test pattern from green grid, magenta grid, white grid, white, or disable this function (off).
Options	Language Select the On-Screen Display (OSD) Menu language.
	Auto Source Automatically find an available input source.
	High Altitude When On, the fans will spin faster for better cooling and performance. This is useful for high altitude environments where the air is thin.
	Keypad Lock Lock all keypad buttons, except for the Power key. NOTE: To release keypad lock, press and hold the Enter key on the projector for 5 seconds. You can also use the remote control and go to: Setup > Keypad Lock > Off.
	Logo Set the “startup screen”. If changes are made, they will take effect the next time the projector is powered on.
Reset	Return the settings to default. NOTE: When resetting, the following settings will still remain: Language, Projection, High Altitude, Security Settings, Zoom, Keystone Settings.

Information Menu

View Serial Number, Source, Resolution, Refresh Rate, Display Mode, Light Source Hours, Brightness Mode, and Firmware Version information.

Technical Specifications

Item	Category	Specifications
Model	P/N.	LS740HD
	No.	VS19579
Projector	Type	Laser
	Display Size	30”~300”
	Throw Ratio	1.13~1.47 (100”@2.50m)
	Lens	F=2.43~2.78, f=16.901~21.6076 mm
	Display System	1-CHIP DMD
Input Signal	HDMI	fh: 15~102 kHz, fv:23~120 Hz, Pixel rate: 165 MHz
Resolution	Native	1920 x 1080
Power	Input Voltage	DC IN 100-240V, 50/60 Hz (auto switch)
Operating Conditions	Temperature	0°C to 40°C (32°F to 104°F)
	Humidity	10% to 80% (non-condensing)
	Altitude	0 to 760 m (0 to 2,500 ft.) at 0°C to 40°C (32°F to 104°F) 760 to 1,520 m (2,500 to 5,000 ft.) at 0°C to 35°C (32°F to 95°F) 1,520 to 3,660 m (5,000 to 12,000 ft.) at 0°C to 30°C (32°F to 86°F)
Storage Conditions	Temperature	-20°C to 60°C (-4°F to 140°F)
	Humidity	0% to 90% (non-condensing)
	Altitude	0 to 12,100 m (0 to 40,000 ft.)
Dimensions	Physical (W x H x D)	286 x 216 x 129 mm (11.26” x 8.50” x 5.08”)
Weight	Physical	3.0 kg (6.61 lbs)
Power Consumption	On	210W (Typical)
	Off	< 0.5W (Standby)

Projector Dimensions

286 mm (W) x 129 mm (H) x 216 mm (D)

Timing Chart

HDMI Video Timing

Timing	Resolution	Refresh Rate (Hz)
SDTV	640 x 480	60
SDTV (480i)	720 x 480	60
SDTV (480p)	720 x 480	60
SDTV (576i)	720 x 576	50
SDTV (576p)	720 x 576	50
HDTV (720p)	1280 x 720	50 / 60
HDTV (1080i)	1920 x 1080	50 / 60
HDTV (1080p)	1920 x 1080	24 / 50 / 60

HDMI PC Timing

Signal	Resolution	Refresh Rate (Hz)
VGA	640 x 480	60 / 67 / 72 / 75
	720 x 400	70
SVGA	800 x 600	56 / 60 / 72 / 75
	832 x 624	75
XGA	1024 x 768	60 / 70 / 75
	1152 x 864	75
Quad-VGA	1280 x 960	60
SXGA	1280 x 1024	60 / 75
WXGA+	1440 x 900	60
WSXGA+	1680 x 1050	60
WUXGA	1920 x 1200-RB2	59.95
HD	1280 x 720	50 / 60 / 120
1080P	1920 x 1080	50 / 60
MAC 13"	640 x 480	60
MAC 19"	1024 x 768	75
MAC 21"	1152 x 870	75

3D Support Timing

HDMI 3D
Frame Packing Format
Timing	Resolution	Refresh Rate (Hz)
1080p	1920 x 1080	24
720p	1280 x 720	50 / 60
Side by Side Format
Timing	Resolution	Refresh Rate (Hz)
1080i	1920 x 1080	50 / 60
Top and Bottom Format
Timing	Resolution	Refresh Rate (Hz)
1080p	1920 x 1080	24

LED Indicators

Status and Description	Power Indicator Light		Temperature Indicator Light	Light Source Indicator Light
	Red	Blue	Red	Blue
Standby State (Power cord input)	Steady Light
Power On (Warming)	Flashing Light (1 sec off/1 sec on)
Power On and Lamp Lighting		Steady Light
Power Off (Cooling)	Flashing Light (0.5 sec off/0.5 sec on) Back to red steady light when the cooling fan turns off.
Error (Lamp Overheat)			Steady Light
Error (Lamp Failure)				Steady Light
Error (Fan Failure)			Flashing Light
Error (Overheat)			Steady Light

Compliance Information

This section addresses all connected requirements and statements regarding regulations. Confirmed corresponding applications shall refer to nameplate labels and relevant markings on the unit.

FCC Compliant Statement

This device complies with part 15 of FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules.

These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy, and if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.

Warning: You are cautioned that changes or modifications not expressly approved by the party responsible for compliance could void your authority to operate the equipment.

Industry Canada Statement

This Class B digital apparatus complies with Canadian ICES-003.
Cet appareil numérique de classe B est conforme à la norme NMB-003 du Canada.
CAN ICES-003(B)/NMB-003(B)

CE Conformity for European Countries

The device complies with the EMC Directive 2014/30/EU and Low Voltage Directive 2014/35/EU. Ecodesign Directive 2009/125/EC and Radio Equipment Directive 2014/53/EU. (Frequency Range:2400~2483.5 MHz, 5150~5250 MHz) (Max Output Power: under 20 dBm)

The following information is only for EU-member states:

The mark shown to the right is in compliance with the Waste Electrical and Electronic Equipment Directive 2012/19/EU (WEEE). The mark indicates the requirement NOT to dispose of the equipment as unsorted municipal waste, but use the return and collection systems according to local law.

Declaration of RoHS2 Compliance

This product has been designed and manufactured in compliance with Directive 2011/65/EU of the European Parliament and the Council on restriction of the use of certain hazardous substances in electrical and electronic equipment (RoHS2 Directive) and is deemed to comply with the maximum concentration values issued by the European Technical Adaptation Committee (TAC) as shown below:

Substance	Proposed Maximum Concentration	Actual Concentration
Lead (Pb)	0.1%	< 0.1%
Mercury (Hg)	0.1%	< 0.1%
Cadmium (Cd)	0.01%	< 0.01%
Hexavalent Chromium (Cr6⁺)	0.1%	< 0.1%
Polybrominated biphenyls (PBB)	0.1%	< 0.1%
Polybrominated diphenyl ethers (PBDE)	0.1%	< 0.1%
Bis (2-ethylhexyl) phthalate (DEHP)	0.1%	< 0.1%
Butyl benzyl phthalate (BBP)	0.1%	< 0.1%
Dibutyl phthalate (DBP)	0.1%	< 0.1%
Diisobutyl phthalate (DIBP)	0.1%	< 0.1%

Certain components of products as stated above are exempted under the Annex III of the RoHS2 Directives as noted below. Examples of exempted components are:

• Copper alloy containing up to 4% lead by weight.
• Lead in high melting temperature type solders (i.e. lead-based alloys containing 85% by weight or more lead).
• Electrical and electronic components containing lead in a glass or ceramic other than dielectric ceramic in capacitors, e.g. piezoelectronic devices, or in a glass or ceramic matrix compound.
• Lead in dielectric ceramic in capacitors for a rated voltage of 125V AC or 250V DC or higher.

Indian Restriction of Hazardous Substances

Restriction on Hazardous Substances statement (India). This product complies with the “India E-waste Rule 2011” and prohibits use of lead, mercury, hexavalent chromium, polybrominated biphenyls or polybrominated diphenyl ethers in concentrations exceeding 0.1 weight % and 0.01 weight % for cadmium, except for the exemptions set in Schedule 2 of the Rule.

Product Disposal at End of Product Life

ViewSonic® respects the environment and is committed to working and living green. Thank you for being part of Smarter, Greener Computing. Please visit the ViewSonic® website to learn more.

USA & Canada
https://www.viewsonic.com/us/go-green-with-viewsonic

Europe
https://www.viewsonic.com/eu/go-green-with-viewsonic

Taiwan
https://recycle.moenv.gov.tw

For EU users, please contact us for any safety/accident issue experienced with this product:

	ViewSonic Europe Limited Haaksbergweg 75 1101 BR Amsterdam Netherlands
	+31 (0) 650608655
	EPREL@viewsoniceurope.com
	https://www.viewsonic.com/eu/

Copyright Information

Copyright© ViewSonic® Corporation, 2023. All rights reserved.

Macintosh and Power Macintosh are registered trademarks of Apple Inc.

Microsoft, Windows, and the Windows logo are registered trademarks of Microsoft Corporation in the United States and other countries.

ViewSonic®, the three birds logo, OnView, ViewMatch, and ViewMeter are registered trademarks of ViewSonic® Corporation.

VESA is a registered trademark of the Video Electronics Standards Association. DPMS, DisplayPort, and DDC are trademarks of VESA.

ENERGY STAR® is a registered trademark of the U.S. Environmental Protection Agency (EPA).

As an ENERGY STAR® partner, ViewSonic® Corporation has determined that this product meets the ENERGY STAR® guidelines for energy efficiency.

Disclaimer: ViewSonic® Corporation shall not be liable for technical or editorial errors or omissions contained herein; nor for incidental or consequential damages resulting from furnishing this material, or the performance or use of this product.

In the interest of continuing product improvement, ViewSonic® Corporation reserves the right to change product specifications without notice. Information in this document may change without notice.

No part of this document may be copied, reproduced, or transmitted by any means, for any purpose without prior written permission from ViewSonic® Corporation.

LS740HD_UG_ENG_1a_20230627

Customer Service Contact Information

For technical support or product service, see the table below or contact your reseller.

You will need the product's serial number

Asia Pacific & Africa

Country / Region	Website
Australia	https://viewsonic.com/au/
Bangladesh	https://www.viewsonic.com/bd/
中囯(China)	https://www.viewsonic.com.cn
香港 (繁體中文)	https://www.viewsonic.com/hk/
Hong Kong (English)	https://www.viewsonic.com/hk-en/
India	https://www.viewsonic.com/in/
Indonesia	https://www.viewsonic.com/id/
Israel	https://www.viewsonic.com/il/
日本 (Japan)	https://www.viewsonic.com/jp/
Korea	https://www.viewsonic.com/kr/
Malaysia	https://www.viewsonic.com/my/
Middle East	https://www.viewsonic.com/me/
Myanmar	https://www.viewsonic.com/mm/
Nepal	https://www.viewsonic.com/np/
New Zealand	https://www.viewsonic.com/nz/
Pakistan	https://www.viewsonic.com/pk/
Philippines	https://www.viewsonic.com/ph/
Singapore	https://www.viewsonic.com/sg/
臺灣 (Taiwan)	https://www.viewsonic.com/tw/
ประเทศไทย (Thailand)	https://www.viewsonic.com/th/
Việt Nam	https://www.viewsonic.com/vn/
South Africa & Mauritius	https://www.viewsonic.com/za/

Americas

Country / Region	Website
United States	https://www.viewsonic.com/us/
Canada	https://www.viewsonic.com/us/
Latin America	https://www.viewsonic.com/la/

Europe

Country / Region	Website
Europe	https://www.viewsonic.com/eu/
France	https://www.viewsonic.com/fr/
Deutschland	https://www.viewsonic.com/de/
Қазақстан	https://www.viewsonic.com/kz/
Россия	https://www.viewsonic.com/ru/
España	https://www.viewsonic.com/es/
Türkiye	https://www.viewsonic.com/tr/
Україна	https://www.viewsonic.com/ua/
United Kingdom	https://www.viewsonic.com/uk/

Limited Warranty

ViewSonic® Projector

What the warranty covers:

ViewSonic® warrants its products to be free from defects in material and workmanship, under normal use, during the warranty period. If a product proves to be defective in material or workmanship during the warranty period, ViewSonic® will, at its sole option, repair or replace the product with a like product. Replacement product or parts may include remanufactured or refurbished parts or components.

Limited Three (3) year General Warranty:

Subject to the more limited one (1) year warranty set out below, North and South America: Three (3) years warranty for all parts excluding the lamp, three (3) years for labor, and one (1) year for the original lamp from the date of the first consumer purchase.

Other regions or countries: Please check with your local dealer or local ViewSonic® office for the warranty information.

Limited One (1) year Heavy Usage Warranty:

Under heavy usage settings, where a projector’s use includes more than fourteen (14) hours average daily usage, North and South America: One (1) year warranty for all parts excluding the lamp, one (1) year for labor, and ninety (90) days for the original lamp from the date of the first consumer purchase; Europe: One (1) year warranty for all parts excluding the lamp, one (1) year for labor, and ninety (90) days for the original lamp from the date of the first consumer purchase. Other regions or countries: Please check with your local dealer or local ViewSonic® office for the warranty information. Lamp warranty subject to terms and conditions, verification and approval. Applies to manufacturer’s installed lamp only. All accessory lamps purchased separately are warranted for 90 days.

Who the warranty protects:

This warranty is valid only for the first consumer purchaser.

What the warranty does not cover:

• Any product on which the serial number has been defaced, modified, or removed.
• Damage, deterioration, or malfunction resulting from:
  • Accident, misuse, neglect, fire, water, lightning, or other acts of nature, unauthorized product modification, or failure to follow instructions supplied with the product.
  • Operation outside of product specifications.
  • Operation of the product for other than the normal intended use or not under normal conditions.
  • Repair or attempted repair by anyone not authorized by ViewSonic®.
  • Any damage of the product due to shipment.
  • Removal or installation of the product.
  • Causes external to the product, such as electric power fluctuations or failure.
  • Use of supplies or parts not meeting ViewSonic’s specifications.
  • Normal wear and tear.
  • Any other cause which does not relate to a product defect.
• Removal, installation, and set-up service charges.

How to get service:

1. For information about receiving service under warranty, contact ViewSonic® Customer Support (Please refer to the “Customer Support” page). You will need to provide your product’s serial number.
2. To obtain warranted service, you will be required to provide: (a) the original dated sales slip, (b) your name, (c) your address, (d) a description of the problem, and (e) the serial number of the product.
3. Take or ship the product, freight prepaid, in the original container to an authorized ViewSonic® service center or ViewSonic®.
4. For additional information or the name of the nearest ViewSonic® service center, contact ViewSonic®.

Limitation of implied warranties:

There are no warranties, express or implied, which extend beyond the description contained herein including the implied warranty of merchantability and fitness for a particular purpose.

Exclusion of damages:

ViewSonic’s liability is limited to the cost of repair or replacement of the product. ViewSonic® shall not be liable for:

1. Damage to other property caused by any defects in the product, damages based upon inconvenience, loss of use of the product, loss of time, loss of profits, loss of business opportunity, loss of goodwill, interference with business relationships, or other commercial loss, even if advised of the possibility of such damages.
2. Any other damages, whether incidental, consequential or otherwise.
3. Any claim against the customer by any other party.

Effect of state law:

This warranty gives you specific legal rights, and you may also have other rights which vary from local authority. Some local governments do not allow limitations on implied warranties and/or do not allow the exclusion of incidental or consequential damages, so the above limitations and exclusions may not apply to you.

Sales outside the U.S.A. and Canada:

For warranty information and service on ViewSonic® products sold outside of the U.S.A. and Canada, contact ViewSonic® or your local ViewSonic® dealer. The warranty period for this product in mainland China (Hong Kong, Macao, and Taiwan Excluded) is subject to the terms and conditions of the Maintenance Guarantee Card. For users in Europe and Russia, full details of warranty provided can be found at: ViewSonic EU under “Support/Warranty Information”.

Mexico Limited Warranty

ViewSonic® Projector

What the warranty covers:

ViewSonic® warrants its products to be free from defects in material and workmanship, under normal use, during the warranty period. If a product proves to be defective in material or workmanship during the warranty period, ViewSonic® will, at its sole option, repair or replace the product with a like product. Replacement product or parts may include remanufactured or refurbished parts or components & accessories.

How long the warranty is effective:

3 years for all parts excluding the lamp, 3 years for labor, 1 year for the original lamp from the date of the first consumer purchase.

Lamp warranty subject to terms and conditions, verification and approval. Applies to manufacturer’s installed lamp only.

All accessory lamps purchased separately are warranted for 90 days.

Who the warranty protects:

This warranty is valid only for the first consumer purchaser.

What the warranty excludes and does not cover:

• Any product on which the serial number has been defaced, modified or removed.
• Damage, deterioration, or malfunction resulting from:
  • Accident, misuse, neglect, fire, water, lightning, or other acts of nature, unauthorized product modification, unauthorized attempted repair, or failure to follow instructions supplied with the product.
  • Any damage of the product due to shipment.
  • Causes external to the product, such as electrical power fluctuations or failure.
  • Use of supplies or parts not meeting ViewSonic®’s specifications.
  • Normal wear and tear.
  • Any other cause which does not relate to a product defect.
• Any product exhibiting a condition commonly known as “image burn-in” which results when a static image is displayed on the product for an extended period of time.
• Removal, installation, insurance, and set-up service charges.

How to get service:

For information about receiving service under warranty, contact ViewSonic® Customer Support (Please refer to the attached “Customer Service” page). You will need to provide your product’s serial number, so please record the product information in the space provided below on your purchase for your future use. Please retain your receipt of proof of purchase to support your warranty claim.

• For information about receiving service under warranty, contact ViewSonic® Customer Support (Please refer to the “Customer Service” page). You will need to provide your product’s serial number, so please record the product information in the space provided below on your purchase for your future use. Please retain your receipt of proof of purchase to support your warranty claim.
• To obtain warranty service, you will be required to provide: (a) the original dated sales slip, (b) your name, (c) your address, (d) a description of the problem, and (e) the serial number of the product.
• Take or ship the product, freight prepaid, in the original container to an authorized ViewSonic® service center.
• Round trip transportation costs for in-warranty products will be paid by ViewSonic®.

Limitation of implied warranties:

There are no warranties, express or implied, which extend beyond the description contained herein including the implied warranty of merchantability and fitness for a particular purpose.

Exclusion of damages:

ViewSonic®’s liability is limited to the cost of repair or replacement of the product. ViewSonic® shall not be liable for:

• Damage to other property caused by any defects in the product, damages based upon inconvenience, loss of use of the product, loss of time, loss of profits, loss of business opportunity, loss of goodwill, interference with business relationships, or other commercial loss, even if advised of the possibility of such damages.
• Any other damages, whether incidental, consequential or otherwise.
• Any claim against the customer by any other party.
• Repair or attempted repair by anyone not authorized by ViewSonic®.

Contact Information for Sales & Authorized Service (Centro Autorizado de Servicio) within Mexico:
Name, address, of manufacturer and importers: México, Av. de la Palma #8 Piso 2 Despacho 203, Corporativo Interpalmas, Col. San Fernando Huixquilucan, Estado de México Tel: (55) 3605-1099 http://www.viewsonic.com/la/soporte/index.htm
NÚMERO GRATIS DE ASISTENCIA TÉCNICA PARA TODO MÉXICO: 001.866.823.2004
Hermosillo: Distribuciones y Servicios Computacionales SA de CV. Calle Juarez 284 local 2 Col. Bugambilias C.P: 83140 Tel: 01-66-22-14-9005 E-Mail: disc2@hmo.megared.net.mx	Villahermosa: Compumantenimietnos Garantizados, S.A. de C.V. AV. GREGORIO MENDEZ #1504 COL, FLORIDA C.P. 86040 Tel: 01 (993) 3 52 00 47 / 3522074 / 3 52 20 09 E-Mail: compumantenimientos@prodigy.net.mx
Puebla, Pue. (Matriz): RENTA Y DATOS, S.A. DE C.V. Domicilio: 29 SUR 721 COL. LA PAZ 72160 PUEBLA, PUE. Tel: 01(52).222.891.55.77 CON 10 LINEAS E-Mail: datos@puebla.megared.net.mx	Veracruz, Ver.: CONEXION Y DESARROLLO, S.A DE C.V. Av. Americas # 419 ENTRE PINZÓN Y ALVARADO Fracc. Reforma C.P. 91919 Tel: 01-22-91-00-31-67 E-Mail: gacosta@qplus.com.mx
Chihuahua: Soluciones Globales en Computación C. Magisterio # 3321 Col. Magisterial Chihuahua, Chih. Tel: 4136954 E-Mail: Cefeo@soluglobales.com	Cuernavaca: Compusupport de Cuernavaca SA de CV Francisco Leyva # 178 Col. Miguel Hidalgo C.P. 62040, Cuernavaca Morelos Tel: 01 777 3180579 / 01 777 3124014 E-Mail: aquevedo@compusupportcva.com
Distrito Federal: QPLUS, S.A. de C.V. Av. Coyoacán 931 Col. Del Valle 03100, México, D.F. Tel: 01(52)55-50-00-27-35 E-Mail : gacosta@qplus.com.mx	Guadalajara, Jal.: SERVICRECE, S.A. de C.V. Av. Niños Héroes # 2281 Col. Arcos Sur, Sector Juárez 44170, Guadalajara, Jalisco Tel: 01(52)33-36-15-15-43 E-Mail: mmiranda@servicrece.com
Guerrero Acapulco: GS Computación (Grupo Sesicomp) Progreso #6-A, Colo Centro 39300 Acapulco, Guerrero Tel: 744-48-32627	Monterrey: Global Product Services Mar Caribe # 1987, Esquina con Golfo Pérsico Fracc. Bernardo Reyes, CP 64280 Monterrey N.L. México Tel: 8129-5103 E-Mail: aydeem@gps1.com.mx
MERIDA: ELECTROSER Av Reforma No. 403Gx39 y 41 Mérida, Yucatán, México CP97000 Tel: (52) 999-925-1916 E-Mail: rrrb@sureste.com	Oaxaca, Oax.: CENTRO DE DISTRIBUCION Y SERVICIO, S.A. de C.V. Murguía # 708 P.A., Col. Centro, 68000, Oaxaca Tel: 01(52)95-15-15-22-22 Fax: 01(52)95-15-13-67-00 E-Mail. gpotai2001@hotmail.com
Tijuana: STD Av Ferrocarril Sonora #3780 L-C Col 20 de Noviembr Tijuana, Mexico	FOR USA SUPPORT: ViewSonic® Corporation 381 Brea Canyon Road, Walnut, CA. 91789 USA Tel: 800-688-6688 http://www.viewsonic.com

Using the Projector Safely

Please read the following Safety Precautions before you start using the projector.

Keep this user guide in a safe place for later reference. Read all warnings and follow all instructions. Allow at least 20“ (50 cm) clearance around the projector to ensure proper ventilation. Place the projector in a well-ventilated area. Do not place anything on the projector that prevents heat dissipation. Do not place the projector on an uneven or unstable surface. The projector may fall over, causing personal injury or projector malfunction. Do not use if the projector is tilted at an angle of more than 10° degrees left or right, nor at an angle of more than 15° degrees forwards or backwards. Do not look straight at the projector lens during operation. The intense light beam may damage your eyes. Always open the lens shutter or remove the lens cap when the projector lamp is on. Do not block the projection lens with any objects when the projector is under operation as this could cause objects to become heated and deformed or even cause a fire. The lamp becomes extremely hot during operation. Allow the projector to cool for approximately 45 minutes prior to removing the lamp assembly for replacement. Do not use lamps beyond the rated lamp life. Excessive use of lamps beyond the rated life could cause them to break on rare occasions. Never replace the lamp assembly or any electronic component unless the projector is unplugged. Do not attempt to disassemble the projector. There are dangerous high voltages inside which may cause death if you should come into contact with live parts. When moving the projector, be careful not to drop or bump the projector on anything. Do not place any heavy objects on the projector or connection cables. Do not stand the projector on end vertically. Doing so may cause the projector to fall over, causing personal injury or projector malfunction. Avoid exposing the projector to direct sunlight or other sources of sustained heat. Do not install near any heat sources such as radiators, heat registers, stoves, or other devices (including amplifiers) that may increase the temperature of the projector to dangerous levels.

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 and call your local service center to have the projector serviced. When the projector is under operation, you may sense some heated air and odor from its ventilation grill. It is a normal operation and not a defect. Do not attempt to circumvent the safety provisions of the polarized or grounding-type plug. A polarized plug has two blades with one wider than the other. A grounding-type plug has two blades and a third grounding prong. The wide and third blade are provided for your safety. If the plug does not fit into your outlet, obtain an adapter and do not attempt to force the plug into the outlet. When connecting to a power outlet, DO NOT remove the grounding prong. Please ensure grounding prongs are NEVER REMOVED. Protect the power cord from being treaded upon or pinched, particularly at the plug, and at the point where it emerges from the projector. In some countries, the voltage is NOT stable. This projector is designed to operate safely within a voltage between 100 to 240 volts AC, but could fail if power cuts or surges of ±10 volts occur. In areas where voltage may fluctuate or cut out, it is recommended that you connect your projector through a power stabilizer, surge protector, or uninterruptable power supply (UPS). If smoke, an abnormal noise, or a strange odor is present, immediately switch the projector off and call your dealer or ViewSonic®. It is dangerous to continue using the projector. Use only attachments/accessories specified by the manufacturer. Disconnect the power cord from the AC outlet if the projector is not being used for a long period of time. Refer all servicing to qualified service personnel. CAUTION: Possibly hazardous optical radiation is emitted from this product. As with any bright light source, do not stare into the beam, RG2 IEC 62471-5:2015

Glossary of Terms

NOTE: Some terms may not be applicable to your device.

Aspect Ratio

Refers to the ratio of the image width to the image height.

Brightest Mode

Maximizes the brightness of the projected image. This mode is ideal for environments where extra-high brightness is required, such as using the projector in well lit rooms.

Brightness

Adjusts background black levels of the screen image.

CEC (Consumer Electronics Control)

Synchronizes power on/off operation via HDMI connection. That is, if a device that also supports CEC function is connected to the HDMI input of the projector, when the projector’s power is turned off, the power of the connected device will also be turned off automatically. When the power of the connected device is turned on, the projector’s power will be turned on automatically.

Color

Adjusts the color saturation.

Color Temperature

Allows users to select specific color temperature settings to further customize their viewing experience.

Contrast

Adjusts the difference between the image background (black level) and the foreground (white level).

Focus

Manually improve the clarity of the projected image.

Gamma

Allows the user to manually select the greyscale curve of the projector.

HDMI

Audio/Video interface used to transmit video and audio via a single cable.

HDMI Range

Allows the user to select HDMI greyscale range between 0~255 (full range) , 16~240 (limited range) or Auto by the signal type detected.

HDR (High-Dynamic Range)

Keeps the brightness level and enhances details on the dark level.

High Altitude Mode

Optional mode for users who live in an environment between 1,500 m and 3,000 m above sea level, and the temperature is between 5° C and 25° C. Activating it will improve projector cooling and performance.

Information

Displays the timing mode (video signal input), the projector model number, the serial number, and the ViewSonic® website URL.

Input Select

Toggles between the various input options that are available for the projector.

Keystone

The distortion of an image caused by projecting it onto an angled surface.

Light Source Level

Use Normal or Eco mode to adjust the brightness level and power consumption.

Movie Mode

A Picture Mode appropriate for playing colorful movies, video clips from digital cameras, or DVs through the PC input. Best for a low light environment.

Sharpness

Adjusts the picture quality of the monitor.

Troubleshooting Common Problems

Why doesn't the projector turn on?

Solution 1 ► Ensure the power cord is properly attached to the projector and to the power outlet.

Solution 2 ► If the cooling process has not completed, please wait until it has finished then try to turn on the projector again.

Solution 3 ► If the above does not work, try another power outlet or another electrical device with the same power outlet.

Solution 4 ► Check that the battery has remaining power, or needs external power.

Why is there no picture?

Solution 1 ► Ensure the video source cable is connected properly, and that the video source is turned on.

Solution 2 ► If the input source is not selected automatically, select the correct source with the Source key on either the projector or the remote control.

What should I do if the image is blurry?

Solution 1 ► Adjusting the Focus Ring will help correctly focus the projection lens.

Solution 2 ► Ensure the projector and screen are aligned properly. If necessary, adjust the height of the projector as well as the projection angle and direction.

Why is the remote control not working?

Solution 1 ► Ensure there are no obstacles between the remote control and projector; and that they are within 8 m (26 ft) of each other.

Solution 2 ► The batteries may be out of power, please check and replace if necessary.

What should I do if the projector freezes or doesn't respond?

Solution ► Using a paper clip, carefully insert it into the Reset button at the rear of the projector to reset the device.

Maintaining the Projector

General Precautions

• Make sure the projector is turned off and the power cable is unplugged from the power outlet.
• Never remove any parts from the projector. Contact ViewSonic® or a reseller when any part of the projector needs replacing.
• Never spray or pour any liquid directly onto the case.
• Handle the projector with care, as a darker-colored projector, if scuffed, may show marks more clearly than a lighter-colored projector.

Cleaning the Lens

• Use a canister of compressed air to remove dust.
• If the lens is still not clean, use lens-cleaning paper or moisten a soft cloth with lens cleaner and gently wipe the surface.

CAUTION: Never rub the lens with abrasive materials.

Cleaning the Case

• Use a soft, lint-free, dry cloth to remove dirt or dust.
• If the case is still not clean, apply a small amount of non-ammonia, non-alcohol based, mild non-abrasive detergent onto a clean, soft, lint-free cloth, then wipe the surface.

CAUTION: Never use wax, alcohol, benzene, thinner, or other chemical detergents.

Storing the Projector

If you intend to store the projector for an extended period of time:

• Ensure the temperature and humidity of the storage area are within the recommend range.
• Retract the adjuster foot completely.
• Remove the batteries from the remote control.
• Pack the projector in its original packaging or equivalent.

Disclaimer

• ViewSonic® does not recommend the use of any ammonia or alcohol-based cleaners on the lens or case. Some chemical cleaners have been reported to damage the lens and/or case of the projector.
• ViewSonic® will not be liable for damage resulting from use of any ammonia or alcohol-based cleaners.