ViewSonic Projector Pro8520HD User Manual

 44
• It is strongly recommended to use an AC power adaptor with the USB hard disk.
• The following formats are recommended for the USB hard disk: FAT12/FAT16/
FAT32 (NTFS format is not supported).
• Some USB flash drives may not work correctly with the projector.
• The security USB flash drive is not supported.
• Do not connect any apparatus other than USB storage devices and other
equipment for battery charge through USB. It may caused malfunction.
• The projector plays up to 200 files in a folder.
•...

 45
Maintenance
The projector needs proper maintenance. You should keep the lens clean as dust, dirt 
or spots will project on the screen and diminish image quality. If any other parts need 
replacing, contact your dealer or qualified service personnel. When cleaning any part 
of the projector, always switch off and unplug the projector first.
Warning
•
Never open any of the covers on the projector. Dangerous electrical voltages inside the 
projector can cause severe injury. Do not attempt to service...

 46
•Use a soft cloth or lens paper only.
Replacing the Lamp
As the projector operates over time, the brightness of the projector lamp gradually 
decreases and the lamp becomes more susceptible to breakage. We recommend 
replacing the lamp if a warning message is displayed. Do not attempt to replace the 
lamp yourself. Contact the qualified service personnel for replacement.
Type number: RLC-076
Note
•
The lamp is extremely hot right after turning off the projector. If you touch the lamp, you 
may scald...

 47
1. Turn off the projector.
2. If the projector is installed in a ceiling mount, remove it
3. Unplug the power cord.
4. Loosen the screw in the side of the lamp cover and remove the cover.
5. Remove the screws from the lamp module, raise the handle, and lift out the 
module.
6. Insert the new lamp module into the projector and tighten the screws.
7. Replace the lamp cover and tighten the screw.
8. Turn on the projector.  If the lamp does not turn on after the warm-up period, try 
reinstalling the...

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Specifications
Display system Single 0.65 DLP panel
Resolution 1080p (1920 × 1080 pixels)
Zoom 1.5X
F/No. 2.41 - 2.97
Focal length 20.72 - 31mm
Screen size 30” - 300”
Lamp 350W
Input terminal D-Sub 15-pin x 2, S-Video x 1, Video x 1, Audio signal input 
(3.5 mm stereo mini jack) x 2, HDMI x 2, Component RCA 
jack x 1, RCA audio jack (L/R) x 1, 3.5 mm Mic input x1, 
USB  A type x1 (supports firmware update, USB flash drive 
display and wireless dongle for USB display), USB mini-B 
type x1 (supports...

 49
Dimensions
 335 mm (W) x 267 mm (D) x 132 mm (H)
Ceiling mount installation
267
132335
64.5
84.9
174227
103
Ceiling mount screws:
M4 x 8 (Max. L = 8 mm)
Unit: mm 

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Appendix
LED Indicator Messages
LED type Color Status Meaning
Power LED Blue Solid
Standby mode when green mode is turned 
on. Lamp LED Red Off
Te m p  L E D R e d O f f
Power LED Blue Flash
Standby mode when green mode is turned 
off. Lamp LED Red Off
Te m p  L E D R e d O f f
Power LED Blue Solid
Powering up Lamp LED Red Off
Te m p  L E D R e d O f f
Power LED Blue Solid
Normal operation Lamp LED Red Off
Te m p  L E D R e d O f f
Power LED Blue Flash
Powering down
(The projector needs to cool for...

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Compatibility Modes
Computer: 
Video:
 
Compatibility Resolution H-Sync [KHz] V-Sync [Hz]
VGA 640 x 48024.69 50
31.5 60
37.9 72
37.5 75
43.3 85
SVGA 800 x 60030.99 50
35.2 56
37.9 60
48.1 72
46.9 75
53.7 85
XGA 1024 x 76839.63 50
48.4 60
56.5 70
60 75
SXGA 1280 x 102464 60
80 75
UXGA 1600 x 1200 47.7 60
Mac 13 640 x 480 35 67
Mac 16 832 x 624 49.72 75
Mac 19 1024 x 768 60.24 75
1080i30 1920 x 1080 33.75 60
1080i25 1920 x 1080 28.13 50
480p 720 x 480 31.47 59.94
576p 720 x 576 31.25 50
720p60 1280 x...

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Troubleshooting
Refer to the symptoms and measures listed below before sending the projector for 
repairs. If the problem persists, contact your local reseller or service center. Please 
refer to LED Indicator Messages as well.
Start-up problems
If no lights turn on:
•
Be sure that the power cord is securely connected to the projector and the other end is
plugged into an outlet with power.
• Press the power button again.
•
Unplug the power cord and wait for a short while, then plug it in and press...

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RS-232 Command and Configuration
 D-Sub 9 pin
11 CD
2RXD
3TXD
4DTR
5GND
6DSR
7RTS
8CTS
9RI
Baud Rate 19200 bps
Data Length 8 bit
Parity Check None
Stop Bit 1 bit
Flow Control None
POWER ON / POWER OFF
 POWER ON BE,EF,10,05,00,C6,FF,11,11,01,00,01,00
 POWER OFF BE,EF,02,06,00,6D,D2,34,00,00,00,00,00
SOURCE SELECT
Computer 1 BE,EF,02,06,00,BC,D3,35,00,00,00,00,00
Computer 2 BE,EF,02,06,00,8F,D3,36,00,00,00,00,00
COMPONENT BE,EF,02,06,00,5E,D2,37,00,00,00,00,00
COMPOSITE...