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.
• The filenames are displayed in the following order: symbols, digits, letters.
• The projector can display the filenames up to 16 characters including the file
extension.
• The application is best to display the filenames in English. If the files are named in
other languages, the filenames may not show properly, but the content still can be
displayed.
• Folders in the USB storage device can be recognized up to 3 layers. The priority of
thumbnail display for image files is as follows:
• Response time may vary depending on image contents when switching pages,
loading and playing files.
A
B
CD
E
FG : Currect directory: A
: Folder B
: Folder D
: Folder E
: Folder G
: Folder C
: Folder FFile display priority in folder: 
A > B > C > D > E > F.
Folder G: Cannot be dis-
played because it is in the 
4th layer. 
						

							 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 this product yourself. Refer 
all servicing to qualified service personnel.
Cleaning the Lens
Gently wipe the lens with lens cleaning paper. Do not touch the lens with your hands.
Cleaning the Projector Housing
Gently wipe with a soft cloth. If dirt and stains are not easily removed, use a soft cloth 
damped with water, or water and neutral detergent, and wipe dry with a soft, dry cloth.
Cleaning the Filter Cover
The filter cover, which is located at the side of the projector, should be cleaned after 
every 100 hours of use. If it is not cleaned periodically, it can become clogged with 
dust and prevent the projector from being ventilated properly. This can cause over 
heating and damage the projector.
To clean the filter cover:
1. Switch the projector off and unplug the AC 
power cord from the wall socket.
2. Remove the filter cover as the illustration 
shown.
3. Clean the filter cover.
• To clean the filter cover, you are advised 
to use a small vacuum cleaner designed 
for computers and other office 
equipment.
• If the filter cover is torn, replace it.
4. Replace the filter cover.
5. Attach the filter cover.  
6. Plug the power back into the projector.
Note
•
Turn off the projector and remove the AC power cord from the power outlet before 
beginning maintenance work.
•Make sure the lens is cool before cleaning.
•Do not use detergents or chemicals other than those noted above. Do not use benzene 
or thinners.
•Do not use chemical sprays. 
						

							 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 your finger. When you replace the lamp, wait for at least 45 minutes for the 
lamp to cool down.
•Do not touch the lamp glass at any time. The lamp may explode due to improper 
handling, including the touching of the lamp glass.
•Lamp lifetime may differ from lamp to lamp and according to the environment of use. 
There is no guarantee of the same lifetime for each lamp. Some lamps may fail or 
terminate their lifetime in a shorter period of time than other similar lamps.
•A lamp may explode as a result of vibration, shock or degradation as a result of hours of 
use as its lifetime draws to an end. Risk of explosion may differ according to the 
environment or conditions in which the projector and lamp are being used.
•Wear protective gloves and eyeglasses when fixing or detaching the lamp.
•Faster on-off-cycles will damage the lamp and reduce lamp life. Wait at least for 5 
minutes to turn off the projector after powering on.
•Do not operate the lamp in proximity to paper, cloth, or other combustible material nor 
cover it with such materials.
•Do not operate the lamp in an atmosphere containing an inflammable substance, such 
as thinner.
•Thoroughly ventilate the area or the room when operating the lamp in an oxygen 
atmosphere (in the air). If ozone is inhaled, it could cause headaches, nausea, dizziness, 
and other symptoms.
•The inorganic mercury is involved in the lamp. If the lamp bursts, the mercury inside the 
lamp will be exposed. Leave the area immediately if the lamp shatters while being 
operated and ventilate the area for at least 30 minutes in order to avoid the inhalation of 
mercury fumes. Otherwise it could be harmful to user’s health. 
						

							 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 lamp.
9. Reset the lamp hour. Refer to the “Information” menu.
Note
•
Dispose the used lamp according to local regulations.
•Ensure that screws are tightened properly. Screws not tightened fully may result in 
injury or accidents.
•Since the lamp is made of glass, do not drop the unit and do not scratch the glass.
•Do not reuse the old lamp. This could cause the lamp to explode.
•Be sure to turn off the projector and unplug the AC power cord before replacing the 
lamp.
•Do not use the projector with the lamp cover removed. 
						

							 48
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 USB display)
Output terminal D-Sub 15 pin x 1,  Audio signal output (3.5 mm stereo mini 
jack) x 1
Control terminal RS-232 x 1, 12-Vdc trigger output x 1, RJ45 x 1
Speaker 10 watt x 2
Video compatibility NTSC, NTSC 4.43
PA L ,  PA L - N ,  PA L  M
SECAM, HDTV (480i/p, 576p, 720p, 1080i/p), Composite 
video
Scanning frequency
Horizontal frequency
Vertical frequency31 - 100 KHz
50 - 85 Hz
Environment Operating:
Temperature: 0°C to 40°C
Humidity: 10%-80%
Storage:
Temperature: -20°C to 60°C
Humidity: 5%-85%
Power requirement AC 100-240 V, 50 - 60 Hz, 4.3A
Power consumption 450 W
Dimension (W x D x H) 335 x 267 x 132 mm
Weight 3.86 kg (8.5 lbs)
Note: Design and Specifications are subject to change without prior notice. 
						

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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 35 seconds 
after the power is turned off.) Lamp LED Red Off
Te m p  L E D R e d O f f
Power LED Blue Solid
The projector system has some problems 
with its fans, so the projector cannot start up. Lamp LED Red Solid
Temp LED Red Flash
Power LED Blue Solid The lamp has reached its end of life and must 
be changed soon. The lamp will continue to 
opearate until it failes. Change the lamp. If 
the lamp is off, then the ballast will become 
malfuction. Lamp LED Red Solid
Te m p  L E D R e d O f f
Power LED Blue Solid
Temperature is too high. The lamp will turn 
off.  The fan motor is cooling the lamp. Lamp LED Red Flash
Te m p  L E D R e d O f f
Power LED Blue Off
The lamp ignition failied. If temperature is too 
high, the fans will cool the lamp. Lamp LED Red Solid
Temp LED Red Solid
Power LED Blue Flash
The projector needs to cool for 90 seconds 
after the power is turned off. If you try to re-
start the projector, it will shut down again. Lamp LED Red Off
Te m p  L E D R e d O f f 
						

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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 720 45 60
720p50 1280 x 720 37.5 50
1080p60 1920 x 1080 67.5 60
1080p50 1920 x 1080 56.25 50
Compatibility Resolution H-Sync [KHz] V-Sync [Hz]
1080p 1920 x 1080 67.5 60
1080p 1920 x 1080 56.3 50
1080i 1920 x 1080 33.8 60
1080i 1920 x 1080 28.1 50
720p 1280 x 720 45 60
720p 1280 x 720 37.5 50
576p 720 x 576 31.3 50
576i 720 x 576 15.6 50
480p 720 x 480 31.5 60
480i 720 x 480 15.8 60 
						

							 52
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 the power
button again.
Image problems
If the searching source is displayed:
• Press SOURCE on the projector or Source on the remote control to select an
active input source.
• Be sure the external source is turned on and connected.
•
For a computer connection, ensure your notebook computer’s external video port is
turned on. Refer to the computer manual.
If the image is out of focus:
• Be sure the lens cover is removed.
•
While displaying the on-screen menu, adjust the focus ring. (The image size should
not change; if it does, you are adjusting the zoom, not the focus.)
• Check the projection lens to see if it needs cleaning.
If the image is flickering or unstable for a computer connection:
•
Press Auto on the remote control.
• Press 
MENU on the projector or Menu on the remote control, go to Video/Audio and
adjust Frequency or Tracking.
Remote control problems
If the remote control does not operate:
• Be sure nothing is blocking the remote control receiver on the front of the projector.
Use the remote control within the effective range.
• Aim the remote control at the screen or at the front or back of the projector.
•
Move the remote control so it is more directly in front of or behind the projector and
not as far to the side. 
						

							 53
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 BE,EF,02,06,00,A1,D2,38,00,00,00,00,00
S-VIDEO BE,EF,02,06,00,70,D3,39,00,00,00,00,00
HDMI 1 BE,EF,02,06,00,43,D3,3A,00,00,00,00,00
HDMI 2 BE,EF,02,06,00,92,D2,3B,00,00,00,00,00
USB A BE,EF,02,06,00,25,D3,3C,00,00,00,00,00
USB B BE,EF,02,06,00,F4,D2,3D,00,00,00,00,00
LAN BE,EF,02,06,00,8A,DF,63,00,00,00,00,00
QUICK KEY
MENU BE,EF,02,06,00,C8,D7,01,00,00,00,00,00
UP BE,EF,02,06,00,FB,D7,02,00,00,00,00,00
DOWN BE,EF,02,06,00,2A,D6,03,00,00,00,00,00
LEFT BE,EF,02,06,00,9D,D7,04,00,00,00,00,00
RIGHT BE,EF,02,06,00,4C,D6,05,00,00,00,00,00
ENTER BE,EF,02,06,00,E6,D6,0F,00,00,00,00,00           Wire List
C1 COLOR C2
1 Black 1
2Brown 3
3Red 2
4 Orange 6
5 Yellow 5
6Green 4
7Blue 8
8Purple 7
9White 9
SHELL DW SHELL