LS741HD Initial Setup

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	763	36.67	931	58.67	1490	14.73	374	2.35	60
40	1016	48.81	1240	78.09	1984	19.61	498	3.14	80
50	1270	61.01	1550	97.62	2479	24.51	623	3.92	100
60	1524	73.21	1860	117.14	2975	29.42	747	4.71	120
70	1778	85.41	2170	136.66	3471	34.32	872	5.49	139
80	2032	97.62	2479	156.19	3967	39.22	996	6.28	159
90	2286	109.82	2789	175.71	4463	44.12	1121	7.06	179
100	2540	122.02	3099	195.23	4959	49.03	1245	7.84	199
110	2794	134.22	3409	214.76	5455	53.93	1370	8.63	219
120	3048	146.42	3719	234.28	5951	58.83	1494	9.41	239
130	3302	158.63	4029	253.80	6447	63.73	1619	10.20	259
140	3556	170.83	4339	273.33	6942	68.64	1743	10.98	279
150	3810	183.03	4649	292.85	7438	73.54	1868	11.77	299
200	5080	244.04	6199	390.47	9918	98.05	2491	15.69	398
250	6350	305.05	7748	488.08	12397	122.57	3113	19.61	498
300	7622	366.15	9300	585.84	14880	147.11	3737	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	763	34.16	868	54.66	1388	13.52	343	2.16	55
40	1016	44.80	1138	71.68	1821	18.00	457	2.88	73
50	1270	56.00	1422	89.60	2276	22.50	572	3.60	91
60	1524	67.20	1707	107.52	2731	27.00	686	4.32	110
70	1778	78.40	1991	125.44	3186	31.50	800	5.04	128
80	2032	89.60	2276	143.36	3641	36.00	914	5.76	146
90	2286	100.80	2560	161.28	4097	40.50	1029	6.48	165
100	2540	112.00	2845	179.20	4552	45.00	1143	7.20	183
110	2794	123.20	3129	197.12	5007	49.50	1257	7.92	201
120	3048	134.40	3414	215.04	5462	54.00	1372	8.64	219
130	3302	145.60	3698	232.96	5917	58.50	1486	9.36	238
140	3556	156.80	3983	250.88	6372	63.00	1600	10.08	256
150	3810	168.00	4267	268.80	6828	67.50	1715	10.80	274
200	5080	224.00	5690	358.40	9103	90.00	2286	14.40	366
250	6350	280.00	7112	448.00	11379	112.50	2858	18.00	457
300	7622	336.08	8536	537.60	13655	135.03	3430	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. The security slot can also be used as a safety anchor if the projector is mounted to the ceiling.