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InFocus Projector Play Big In74ex User Manual

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4
Push the 2 tabs on the lamp door toward the front of the projector and 
lift the lamp door off.
5
Loosen the three captive screws that attach the lamp housing to the pro
-
jector.
6
Detach the lamp connector from the projector by depressing the locking 
tab on the connector and lightly pulling it free.WA R N I N G:To avoid burns, allow the projector to cool for at least 60 minutes 
before you replace the lamp.Be extremely careful when removing the lamp housing. In the 
unlikely event that the bulb...

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10
Replace the lamp door.
11
Replace the base or ceiling mount plate, if necessary.
12
Plug in the power cord and press the Pow e r button on the remote or 
keypad to turn the projector back on.
13
To reset the lamp hour timer, navigate to the Settings>Service menu 
and select Reset Lamp Hours
. See 
page
 28 for details.
Service menu 

Page 33

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AppendixRed LED behavior and projector errorsIf the projector is not functioning properly and the LED is blinking red, con
-
sult Ta b l e  4 to determine a possible cause. There are two-second pauses 
between the blinking cycles. Visit our website for more details on the red 
LED error codes.
Table 4: LED Behavior
Red LED Behavior
Explanation
One (1) blink
The lamp wont strike after five (5) 
attempts. Check the lamp and lamp door 
installations for loose connections.
Two (2) blinks
The lamp counter...

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Remote control discrete codesYou can use these codes to program another remote to learn the projector ’s 
remote functions.To activate discrete mode, press and hold the Custom button on the remote 
for 10 seconds. The back light blinks twice when discrete mode is entered. 
The remote buttons are now remapped to new functions as listed below. To 
return to normal remote mode, press and hold the Custom button on the 
remote for 10 seconds. The remote also returns to normal mode automati
-
cally if no...

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Projector dimensions for ceiling mount installationsAll values in millimeters (mm). 
234.5126.5 361
121
40.2557
64
344.2
5
167
40.5
24.5
163
227.5
245.5 

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Supported video formats
Connector
Signal Type
Supported formats
HDMI
Digital RGB and YCrCb
480i/50Hz/60Hz480p/50Hz/60Hz576i/50Hz/60Hz576p/50Hz/60Hz720p/50Hz/60Hz1080i/50Hz/60Hz1080i/50Hz (Australia)
Digital RGB video via M1-to-DVI cableAnalog RGB video via M1-to-VESA cable
M1-DA
YPrPb video via M1-to-Component adapterAnalog Computer via M1-to-VESA cable
All industry-standard analog and digi
-
tal computer formats conforming to 
VESA standards
Digital Computer via M1-to-DVI cable
Component
YPrPb...

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RS-232 terminal specifications for IN74 and IN76Communication configurationTo control the projector from an LCD control panel, connect an RS-232 cable 
to the serial control connector on the projector and set your computer ’s 
serial port settings to match this communication configuration:Command formatAll commands consist of 3 alpha characters followed by a request, all 
enclosed in parentheses. The request can be a read request (indicated by a 
“?”) or a write request (indicated by 1 to 4 ASCII...

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Supported commandsFunction
Command
Range
Default
Auto Ceiling Enable
ACL
0-1
0
Auto Color Space enable
ACS
0-1
1
Auto Image
AIM
0-1
0
Aspect Ratio
ARZ
0-40 = Native1 = 4:3 2 = 16:93 = Letterbox4 = Natural Wide
1
Auto Power Enable
APO
0-1
0
Auto Source Enable
ASC
0-1
1
Auto Video Standard Enable
AV S
0-1
1
Blank
BLK
0-1
0
Blank Screen Enable
BLK
0-10 = black1 = blue
0
Blue Color Offset
BCO
1-255
128
Blue Gain
BCG
1-255
128
Blue Only Enable
BOE
0-1
0
Brightness
BRT
0-255
128
Ceiling
CEL
0-1
0
Color
CLR...

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Language
LAN
0-11
 
0 = English1 = French2 = German3 = Italian4 = Japanese5 = Korean6 = Norwegian7 = Portuguese8 = Russian9 = Chinese Simpli
-
fied10 = Spanish11 = Chinese Tra
-
ditional
0
Noise Reduction Mode
NRE
0-10 = Off1 = Auto
0
Noise Reduction Level
NRL
8-248
128
Overscan
OVS
0-2
0
Phase
MSS
0-100
50
Power Enable
PWR
0-1
0
Power Save Enable
PSV
0-1
0
Presets
PST
0-50 = default1 = User 12 = User 24 = Off
0
Rear Project
REA
0-1
0
Red Color Offset
RCO
0-255
128
Red Gain
RCG
0-255
128
Sharpness...

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Video Standard
VSU
0-9
 
0 = Auto1 = NTSC2 = PAL5 = SECAM
0
White Peaking
WPK
0-10
1
Save User1 Preset
US1
0-1
0
Save User 2 Preset
US2
0-1
0
Save User 3 Preset
US3
0-1
0
Logo Capture Enable
CAP
0-1
0
Source Enable 0
CE0
0-1
0
Source Enable 1
CE1
0-1
0
Source Enable 2
CE2
0-1
0
Source Enable 3
CE3
0-1
0
Source Enable 4
CE4
0-1
0
Source Enable 5
CE5
0-1
0
Logo Capture Compress
COM
0-1
0
Logo Capture Compression 
Progress Count
CPC
0-480
0
Current Subsource
CRS
0-7
0
Power-up Source
DSC
0-5
2
Effect Key...
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