BenQ Cp270 Dlp Users Manual

							Introduction 11
Remote control
1. Power
Toggles the projector between standby 
mode and on. See Starting up the 
projector on page 22 and Shutting down 
the projector on page 38 for details.
2. Freeze
Freezes the projected image. See Freezing 
the image on page 36 for details.
3. Left/
Starts the FAQ function. See Utilizing 
FAQ function on page 36 for details.
4. BLANK
Used to hide the screen picture. See 
Hiding the image on page 35 for details.
5. Digital Zoom keys (+, -)
Magnifies or reduces the projected picture 
size. See Magnifying and searching for 
details on page 28 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 23 for details.7. Keystone/Arrow keys ( / Up,  /
Down)
Manually corrects distorted images 
resulting from an angled projection. See 
Correcting keystone on page 28 for 
details.
8. AUTO
Automatically determines the best picture 
timings for the displayed image. See 
Auto-adjusting the image on page 27 for 
details.
9. Right/
Activates panel key lock. See Locking 
control keys on page 35 for details.
When the On-Screen Display (OSD) 
menu is activated, the #3, #7 and #9 keys 
are used as directional arrows to select the 
desired menu items and to make 
adjustments. See Using the menus on 
page 23 for details.
10. SOURCE
Displays the source selection bar. See 
Switching input signal on page 26 for 
details.
11. Mode/Enter
Depending upon which input signal is 
selected, selects an available picture setup 
mode. See Selecting a picture mode on 
page 30 for details. 
Enacts the selected On-Screen Display 
(OSD) menu item.
12. Timer On
Activates or displays an on-screen timer 
based on your own timer setting. See 
Setting the presentation timer on page 
34 for details.
13. Timer Setup
Enters presentation timer setting directly. 
See Setting the presentation timer on 
page 34 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 8 meters (~ 
26 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.
A
pprox
.
 15°
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							Positioning your projector 13
Positioning your projector
Choosing a location
Your room layout or personal preference will dictate which installation location you select. 
Take into consideration the size and position of your screen, the location of a suitable power 
outlet, as well as the location and distance between the projector and the rest of your 
equipment.
Your projector is designed to be installed in one of the possible installation locations: 
1. Front Table
Select this location with the projector placed near the 
floor in front of the screen. This is the most common way 
to position the projector for quick setup and portability.
2. Rear Table
Select this location with the projector placed near the 
floor behind the screen.
Note that a special rear projection screen is required.
Set Rear Table in the SYSTEM SETUP: Basic > Projector 
Position menu after you turn the projector on.
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							Positioning your projector 14
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).
You can see from the diagram on page 16, that this type of projection causes the bottom edge 
of the projected image to be vertically offset from the horizontal plane of the projector.
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. 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 15
How to determine the position of the projector for a given 
screen size
1. Select your screen size.
2. Refer to the table and find the closest match to your screen size in the left columns 
labelled 4:3 screen diagonal. Using this value, look across this row to the right to find 
the corresponding average distance from screen value in the column labelled 
Average. This is the projection distance.
3. On that same row, look across to the right column and make note of the Vertical 
offset in mm value. This will determine the final vertical offset placement of the 
projector in relation to the edge of the screen.
4. The recommended position for the projector is aligned perpendicular to the 
horizontal center of the screen, at the distance from the screen determined in step 2 
above, and offset by the value determined in step 3 above.
For example, if you are using a 120-inch screen, the average projection distance is 4755 mm 
and with a vertical offset of 183 mm.
If you place the projector in a different position (to that recommended), you will have to tilt 
it down or up to center the image on the screen. In these situations, some image distortion 
will occur. Use the Keystone function to correct the distortion. See Correcting keystone on 
page 28 for details.
How to determine the recommended screen size for a 
given distance
This method can be used for situations where you have purchased this projector and would 
like to know what screen size will fit in your room.
The maximum screen size is limited by the physical space available in your room. 
1. Measure the distance between the projector and where you want to position the 
screen. This is the projection distance.
2. Refer to the table and find the closest match to your measurement in the average 
distance from screen column labelled Average. If the min and max values are 
available on the table, check that your measured distance is between the min and max 
distances listed on either side of the average distance value.
3. Using this value, look across that row to the left to find the corresponding screen 
diagonal listed in that row. That is the projected image size of the projector at that 
projection distance.
4. On that same row, look across to the right column and make note of the Vertical 
offset in mm value. This will determine the final placement of the screen in relation to 
the horizontal plane of the projector. 
For example, if your measured projection distance was 4.5 m (4500 mm), the closest match 
in the Average column is 4680 mm. Looking across this row shows that a 118-inch (3.0 m) 
screen is required.
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							Positioning your projector 16
Projection dimensions
Refer to Dimensions on page 54 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.
4:3 screen diagonalRecommended projection distance from 
screen in mmVertical offset in mm
FeetInchesmmMin length 
(with max. 
zoom)Ave r a g eMax length 
(with min. 
zoom)
4 48 1219 1811 1902 1992 73
59 1500 2228 2340 2451 90
5 60 1524 2264 2377 2491 91
6 72 1829 2717 2853 2989 110
79 2000 2971 3120 3268 120
7 84 2134 3170 3328 3487 128
8 96 2438 3623 3804 3985 146
98 2500 3714 3900 4086 150
9 108 2743 4075 4279 4483 165
118 3000 4457 4680 4903 180
10 120 3048 4528 4755 4981 183
138 3500 5200 5460 5720 210
12 144 3658 5434 5706 5977 219
157 4000 5943 6240 6537 240
15 180 4572 6792 7132 7472 274
197 5000 7428 7800 8171 300
18 216 5486 8151 8558 8966 329
236 6000 8914 9360 9805 360
25 300 7620 11321 11887 12453 457
Maximum zoom
Minimum zoom
Projection distanceCenter of lens Screen
Vertical offset
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							Connection 17
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 VGA cable and connect one end to the D-Sub output socket of the 
computer.
2. Connect the other end of the VGA cable to the D-SUB/COMP. IN signal input socket 
on the projector.
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
VGA cable
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							Connection 18
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
•S-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 19 for how to connect the 
projector to a component video device.
Better video quality
The S-Video method provides a better quality analog video than standard composite Video. 
If you have both composite Video and S-Video output terminals on your Video source 
device, you should elect to use the S-Video option.
See Connecting an S-Video source device on page 20 for how to connect the projector to 
an S-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 21 for how to connect the 
projector to a composite Video device.
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							Connection 19
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 D-SUB/COMP. IN socket on the projector.
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.
AV device
Component Video to 
VGA (D-Sub) 
adaptor cable 
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							Connection 20
Connecting an S-Video source device
Examine your Video source device to determine if it has an unused S-Video output socket 
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 an S-Video source device:
1. Take an S-Video cable and connect one end to the S-Video output socket of the Video 
source device.
2. Connect the other end of the S-Video cable to the S-VIDEO socket on the projector.
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.
• If you have already made a Component Video connection between the projector and this 
S-Video source device using Component Video connections, you need not connect to this 
device using an S-Video connection as this makes an unnecessary second connection of 
poorer picture quality. See Connecting Video source devices on page 18 for details.
AV device
S-Video cable
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