InFocus Projector Lp755 User Manual

50
Appendix
Video Audio Input
Input Impedance 5K ohm DC coupled
Maximum Input Voltage (L
IN + RIN)PEAK < 4.5 V for THD £
 0.3%
L
IN or RIN < 2.0 Vrms for THD £
 0.3%
Sensitivity 100 mV at 1 KHz for 88 dB SPL at 1 meter
Connector Type RCA jack
CableWizard Audio Input
Input Impedance 10K ohm nominal, AC coupled
Maximum Input Voltage (L
IN + RIN)PEAK < 4.5 V for THD £
 0.3%
L
IN or RIN < 2.0 Vrms for THD £
 0.3%
Sensitivity 100 mV at 1 KHz for 88 dB SPL at 1 meter
Connector Type 3.5 mm (1/8 inch) stereo...

51
Accessories
NOTE: Use only InFocus-
approved accessories. Other prod-
ucts have not been tested with the 
projector. Power Cords (one ships with projector, type depends on country)Standard Accessories 
(ship with the projector) Part Number
LP755 Quick Start card 009-0436-xx
LP755 User’s Guide010-0217-xx
Carry Case 110-0241-xx
Shipping Box 110-0247-xx
CableWizard and Cables SP-CW3
CableWizard Audio Cable (2 ft) 210-0079-xx
CableWizard USB Cable (2 ft) 210-0100-xx
CableWizard PS/2 Mouse Cable (1.5 ft)...

52
Appendix
Optional Accessories
Deluxe Soft Case CA-C140
Hard Travel Case CA-C142
Deluxe Travel Case CA-C141
ATA Shipping Case CA-C143
CableWizard Lite, 6.5 ft SP-CW2LITE
Macintosh Adapter  SP-MACADPT
CableWizard Extension Cable, non-plenum 
rated, 60.7 ft SP-CW2EXT
CableWizard Extension Cable, plenum-rated, 
60.7 ft SP-CW2EXTP
CableWizard Installation Extension Cable, 70.5 ft  SP-CW2-IEXT
Two-button Executive Remote Control SP-EXREM
Remote Cable, 50 ft  210-0088-xx
Kensington MicroSaver Security System...

53
Portable and Laptop Activation Chart
NOTE: Often, pressing the key 
commands once activates the 
external video port, pressing it 
again activates both the external 
and internal ports, and pressing it 
a third time activates the internal 
por t. Refer to your computer’s doc-
umentation for details on your spe-
cific model.
Many laptop computers do not automatically turn on their exter-
nal video port when a secondary display device such as a projec-
tor is connected. Activation commands for some...

54
Appendix
Compaq* ** Ctrl-Alt-< Ctrl-Alt->
FN-F4 FN-F4
automatic automatic
mode/? (for setup option) mode/? (for setup option)
Compuadd* ** automatic automatic
Alt-F for screen setup 
optionAlt-F for screen setup 
option
Data General Ctrl-Alt-Command Ctrl-Alt-Command
Data General 
Walkabout2 CRT/X at DOS prompt reboot
Datavue Ctrl-Shift-M Ctrl-Shift-M
Dell** Ctrl-Alt-< Ctrl-Alt->
Ctrl-Alt-F10 Ctrl-Alt-F10
FN-F8 (CRT/LCD) FN-F8
FN-D FN-D
FN-F12 FN-F12
Digital* automatic reboot
FN-F2 FN-F2
Dolch dip...

55
IBM ThinkPad** reboot, enter setup menu FN-F2
FN-F7, select choice from 
setup menu
FN-F1, select choice
FN-F5, select choice
PS/2 SC select choice 
(CRT, LCD, etc.)
Kaypro boot up, monitor plugged 
inunplug monitor
Kris Tech FN-F8 FN-F8
Mac Portable 
100no video port: not compatible 
Mac PowerBook
140, 145, 150, 
170no video port: requires a 3rd-party interface
160, 165, 180, 
520, 540, 5300Control Panel folder, Pow-
erBook Display folder; 
Activate Video Mirroringwarm reboot
210, 230, 250, 
270,...

56
Appendix
* These manufacturers have models that automatically send video 
to the external CRT port when some type of display device is 
attached.
** These manufacturers offer more than one key command depend-
ing on the computer model. Packard Bell** FN-F2 FN-F2
Ctrl-Alt-< Ctrl-Alt->
Panasonic FN-F2 FN-F2
Samsung* setup screen option setup screen option
Sanyo setup screen option setup screen option
Sharp dip switch to CRT dip switch to LCD
Sun SPARC-
DataviewCtrl-Shift-M Ctrl-Shift-M
Tandy**...

57
Using Video Mirroring with a PowerBook Computer
When you turn video mirroring on (called SimulScan in newer 
PowerBooks-see below), the projector displays the same informa-
tion that appears on your PowerBook’s built-in screen. When 
video mirroring is off, the projector acts like a separate display.
To turn on video mirroring for the first time:
1Open the Monitors control panel; click on Monitor 2.
2Set the number of colors you want.
3Open the Control Strip; click on the monitor icon.
4Select “Turn...

58
Appendix
Projected Image Size
Use the chart below and the tables on the next page to help you 
determine projected image sizes.
NOTE: You can access a
Microsoft Excel Image Size
Calculator at our web site at
http://www.infocus.com. It is in
the Technical Library under
“Service and Support”.
F
IGURE 32
Projected image size  

59
Ta b l e  1 :  
Image Size, Width and Height for Lens at Maximum 
Image Size 
Distance to 
Screen (feet) Diagonal
(inches)Width
(inches)Height
(inches)
4312519
10 77 62 46
15 115 92 69
20 154 123 92
25 192 154 115
30 230 184 138
35 269 215 161
40 307 246 184
Table 2: 
Image Size, Width and Height for Lens at 
Minimum Image Size
Distance to 
Screen (feet) Maximum
Diagonal
(inches)Maximum
Width
(inches)Maximum
Height
(inches)
4 241914
10 59 47 35
15 88 70 53
20 118 94 71
25 147 118 88
30 176 141 106
35...