BenQ Gp1 Dlp Users Manual

							Introduction 11
Remote control
1. POWER
Toggles the projector between standby 
mode and on. See Starting up the 
projector on page 21 and Shutting down 
the projector on page 33 for details.
PROJECTOR
2. FREEZE
Freezes the projected image. See Freezing 
the image on page 31 for details.
3. AUTO
Automatically determines the best picture 
timings for the displayed image. See 
Auto-adjusting the image on page 26 for 
details.
4. BLANK
Used to hide the screen picture. See 
Hiding the image on page 31 for details.
5. Volume/Arrow keys ( /-,  /+)
Magnifies or reduces the volume level. See
Adjusting the sound on page 32 for
details.
When the On-Screen Display (OSD) 
menu is activated, the #5 and #7 keys are 
used as directional arrows to select the 
desired menu items and to make 
adjustments. See Using the menus on 
page 22 for details.6. MENU/EXIT
Turns on the On-Screen Display (OSD) 
menu. Goes back to previous OSD menu, 
exits and saves menu settings.
See Using the menus on page 22 for 
details.
7. Keystone/Arrow keys ( / Up,  /
Down)
Manually corrects distorted images 
resulting from an angled projection. See 
Correcting keystone on page 26 for details.
8.  SOURCE
Displays the source selection bar. See 
Switching input signal on page 25 for 
details.
9. MODE/ENTER
Depending upon which input signal is 
selected, selects an available picture setup 
mode. See Selecting a picture mode on 
page 28 for details. 
Enacts the selected On-Screen Display 
(OSD) menu item. See Using the menus 
on page 22 for details.
USB READER
10. SELECT/
Plays back and pauses the photo and 
movie. Enacts the selected USB On-
Screen Display (OSD) menu item.
11. RETURN/
Stops playback. Goes back to USB Reader 
main screen.
12. Arrow keys ( / / / )
Uses / to play previous or next file.
Use / to allow fast reverse play or 
fast forward play during playback.
When the USB Reader On-Screen Display 
(OSD) menu is activated, arrow keys are 
used as directional arrows to select the 
desired menu items.
13. SETTING
Turns on the USB Reader On-Screen 
Display (OSD) menu. Exits and saves 
menu settings. See Using USB Reader 
menus on page 44 for details.
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							Introduction 12
Remote control effective range
Infra-Red (IR) remote control sensor is located on 
the front of the projector. The remote control must 
be held at an angle within 30 degrees perpendicular 
to the projectors IR remote control sensor to 
function correctly. The distance between the remote 
control and the sensor should not exceed 7 meters (~ 
23 feet).
Make sure that there are no obstacles between the 
remote control and the IR sensor on the projector 
that might obstruct the infra-red beam.
Replacing the remote control battery
1. Pull out the battery holder.
Please follow the illustrated instructions. Push and hold 
the locking arm while pulling out the battery holder.
2. Insert the new battery in the holder. Note the 
positive polarity should face outward.
3. Push the holder into the remote control.
• Avoid excessive heat and humidity. 
• There may be battery damage if the battery is 
incorrectly replaced. 
• Replace only with the same or equivalent type recommended by the battery manufacturer.
• Dispose of the used battery according to the battery manufacturer’s instructions.
• Never throw a battery into a fire. There may be danger of an explosion. 
• If the battery is dead or if you will not be using the remote control for a long time, remove 
the battery to prevent damage to the remote control from possible battery leakage.
Appro
x.
 1
5°
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							Positioning your projector 13
Positioning your projector
Obtaining a preferred projected image size
The distance from the projector lens to the screen, the zoom setting (if available), and the 
video format each factors in the projected image size.
4:3 is the native aspect ratio of this projector. To be able to project a complete 16:9 
(widescreen) aspect ratio image, the projector can resize and scale a widescreen image to the 
projectors native aspect width. This will result in a proportionally smaller height equivalent 
to 75% of the projectors native aspect height.
Thus, a 16:9 aspect image will not utilize 25% of the height of a 4:3 aspect image displayed 
by this projector. This will be seen as darkened (unlit) bars along the top and bottom 
(vertical 12.5% height respectively) of the 4:3 projection display area whenever displaying a 
scaled 16:9 aspect image in the vertical center of the 4:3 projection display area.
The projector should always be placed horizontally level (like flat on a table), and positioned 
directly perpendicular (90° right-angle square) to the horizontal center of the screen. This 
prevents image distortion caused by angled projections (or projecting onto angled surfaces). 
The modern digital projector does not project directly forward (like older style reel-to-reel 
film projectors did). Instead, digital projectors are designed to project at a slightly upward 
angle above the horizontal plane of the projector. This is so that they can be readily placed 
on a table and will project forward and upwards onto a screen positioned so that the bottom 
edge of the screen is above the level of the table (and everyone in the room can see the 
screen).
If the projector is mounted on a ceiling, it must be mounted upside-down so that it projects 
at a slightly downward angle.
You can see from the diagram on page 14, that this type of projection causes the bottom edge 
of the projected image to be vertically offset from the horizontal plane of the projector. 
When ceiling mounted, this refers to the top edge of the projected image.
If the projector is positioned further away from the screen, the projected image size 
increases, and the vertical offset also increases proportionately.
When determining the position of the screen and projector, you will need to account for 
both the projected image size and the vertical offset dimension, which are directly 
proportional to the projection distance.
BenQ has provided a table of 4:3-aspect-ratio screen sizes to assist you in determining the 
ideal location for your projector. Refer to  Projection dimensions on page 14 depending on 
the projector you are using. There are two dimensions to consider, the perpendicular 
horizontal distance from the center of the screen (projection distance), and the vertical 
offset height of the projector from the horizontal edge of the screen (offset).4:3 aspect image in a 4:3 
aspect display area16:9 aspect image scaled to a 4:3 aspect 
display area
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							Positioning your projector 14
Projection dimensions
Refer to Dimensions on page 56 for the center of lens dimensions of this projector before 
calculating the appropriate position.
There is 3% tolerance among these numbers due to optical component variations. BenQ 
recommends that if you intend to permanently install the projector, you should physically test 
the projection size and distance using the actual projector in situ before you permanently 
install it, so as to make allowance for this projectors optical characteristics. This will help you 
determine the exact mounting position so that it best suits your installation location.
858:600 screen diagonalRecommended projection distance from 
screen in mm
FeetInchesmmAv e r a g e
1.25 15 381 600
2.50 30 762 1200
3.75 45 1143 1800
5.00 60 1524 2400
6.67 80    2032 3200
858:600 screen diagonal
Projection distanceCenter of lens Screen
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							Connection 15
Connection
When connecting a signal source to the projector, be sure to:
1. Turn all equipment off before making any connections.
2. Use the correct signal cables for each source.
3. Ensure the cables are firmly inserted. 
In the connections shown below, some cables may not be included with the projector (see 
Shipping contents on page 8). They are commercially available from electronics stores.
Connecting a computer
The projector provides a VGA input socket that allows you to connect it to both IBM® 
compatibles and Macintosh® computers. A Mac adapter is needed if you are connecting 
legacy version Macintosh computers.
To connect the projector to a notebook or desktop computer:
1. Take the supplied multi-input cable and connect one end to the D-Sub output socket 
of the computer.
2. Connect the other end of the multi-input cable to the multi-input socket on the 
projector.
3. If you wish to make use of the projector speaker, take a suitable audio cable and 
connect one end of the cable to the audio output socket of the computer, and the other 
end to the audio input sockets of the multi-input cable.
The final connection path should be like that shown in the following diagram:
Many notebooks do not turn on their external video ports when connected to a projector. 
Usually a key combo like FN + F3 or CRT/LCD key turns the external display on/off. Locate a 
function key labeled CRT/LCD or a function key with a monitor symbol on the notebook. Press 
FN and the labeled function key simultaneously. Refer to your notebooks documentation to 
find your notebooks key combination.
Notebook or desktop computer
Multi-input cable
Audio cable
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							Connection 16
Connecting Video source devices
You can connect your projector to various Video source devices that provide any one of the 
following output sockets:
• Component Video
•Video (composite)
You need only connect the projector to a Video source device using just one of the above 
connecting methods, however each provides a different level of video quality. The method 
you choose will most likely depend upon the availability of matching terminals on both the 
projector and the Video source device as described below:
Best video quality
The best available video connection method is Component Video (not to be confused with 
composite Video). Digital TV tuner and DVD players output Component Video natively, so 
if available on your devices, this should be your connection method of choice in preference 
to (composite) Video.
See Connecting a Component Video source device on page 17 for how to connect the 
projector to a component video device.
Least video quality
Composite Video is an analog video and will result in a perfectly acceptable, but less than 
optimal result from your projector, being the least video quality of the available methods 
described here.
See Connecting a composite Video source device on page 18 for how to connect the 
projector to a composite Video device.
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							Connection 17
Connecting a Component Video source device
Examine your Video source device to determine if it has a set of unused Component Video 
output sockets available: 
• If so, you can continue with this procedure.
• If not, you will need to reassess which method you can use to connect to the device.
To connect the projector to a Component Video source device:
1. Take a Component Video to VGA (D-Sub) adaptor cable and connect the end with 3 
RCA type connectors to the Component Video output sockets of the Video source 
device. Match the color of the plugs to the color of the sockets; green to green, blue to 
blue, and red to red.
2. Connect the other end of the Component Video to VGA (D-Sub) adaptor cable (with 
a D-Sub type connector) to the multi-input cable.
3. Connect the multi-input cable to the multi-input socket on the projector.
4. If you wish to make use of the projector speaker, take a suitable audio cable and 
connect one end of the cable to the audio output sockets of the Video source device, 
and the other end to the audio input sockets of the multi-input cable.
The final connection path should be like that shown in the following diagram:
• If the selected video image is not displayed after the projector is turned on and the correct 
video source has been selected, check that the Video source device is turned on and 
operating correctly. Also check that the signal cables have been connected correctly.
• When AUDIO OUT is connected with the earphone or external speaker, the sound will not 
come out from the projector speaker.
• No sound will come out from the speaker or AUDIO OUT if video signals are not input. 
Besides, the sound cannot be adjusted either.
AV device
Component 
Video to 
Audio cable 
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							Connection 18
Connecting a composite Video source device
Examine your Video source device to determine if it has a set of unused composite Video 
output sockets available: 
• If so, you can continue with this procedure.
• If not, you will need to reassess which method you can use to connect to the device.
To connect the projector to a composite Video source device:
1. Take a Video cable and connect one end to the composite Video output socket of the 
Video source device.
2. Connect the other end to the Video input socket to the multi-input cable. 
3. If you wish to make use of the projector speaker, take a suitable audio cable and 
connect one end of the cable to the audio output sockets of the Video source device, 
and the other end to the audio input sockets of the multi-input cable.
The final connection path should be like that shown in the following diagram:
• If the selected video image is not displayed after the projector is turned on and the correct 
video source has been selected, check that the Video source device is turned on and 
operating correctly. Also check that the signal cables have been connected correctly.
• You need only connect to this device using a composite Video connection if Component 
Video input is unavailable for use. See Connecting Video source devices on page 16 for 
details.
Multi-input cable 
Video cable 
Audio cable  AV  d e v i c e
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							Connection 19
Connecting a USB Reader source device
The USB Reader function supports a mass storage device only. Examine your source device 
if it is a USB memory stick or portable 2.5 hard disk drive.
To connect the projector to a USB Reader source device:
1. Connect a USB Reader source device to the USB slot on the projector.
2. If you wish to make use of a speaker or other audio input equipment, take a suitable 
audio cable and connect one end to the audio input socket of the speaker, the other 
end to the AU D I O  O U T socket of the projector. When the audio cable is connected to 
the AU D I O  O U T terminal, the speaker output is muted.
The final connection path should be like that shown in the following diagram:
• If the USB Reader main screen is not displayed after the projector is turned on. Press 
SOURCE on the projector or remote control and select USB Reader after a source 
selection bar displays. See Presenting From a USB Reader on page 42 for details.
• The AUDIO OUT socket on the projector supports USB Reader function only.
• If you are using a 2.5 portable hard disk device, make sure that the file system is FAT32/
FAT16 and the files are saved in primary partition.
PORTABLE2.5 HARD DISK DRIVE
2.5” hark disk 
device USB Reader
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							Connection 20
Connecting an iPod Dock device (Optional
Accessory)
Read this chapter if the model you purchased is included with iPod Dock.
To connect the projector to an iPod Dock source device
1. Dock your iPod to fit the iPod connector.
2. Connect the iPod Dock cable into the multi-input socket on the projector.
The final connection path should be like that shown in the following diagram:
•See Projection with iPod Dock (Optional Accessory) on page 51 for details.
iPod Dock device
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