BenQ Pe7800 Digital Projector Home Theater Users Manual

							  11   Overview
Projector Exterior View
Front / Upper Side
Rear Side
Bottom Side
Projection LensFocus Ring and Zoom Ring
Adjusts the focus and zoom of the projection lens.
Front IR SensorVentilation Holes (intake)Control Panel
Show lamp status and whether the projector is on or 
off. For more details, Control Panel on page 13.
Front Lamp Cover: Remove this cover when replacing the lamp.
Ventilation Holes (exhaust)Kensington Lock
This lock can withstand 150 N of force.
Front Adjuster button
Adjusts the height or projection angle.
Back IR Sensor
AC Power IN SocketMain AC Power Switch Rear Adjuster Ventilation Holes
(exhaust)
Rear AdjusterVentilation Holes
(exhaust)
Connector Panel
For more details, see the description of 
Connector Panel on the next page.
Ceiling Mount Holes
For attaching the prjector to a ceiling 
mount rack.
Ceiling Mount Holes
For attaching the prjector to a ceiling mount 
rack.
Front Adjuster
Adjusts the height or 
projection angle. 
Rear Adjuster
Adjusts the height or 
projection angle. 
Front Adjuster
Adjusts the height or 
projection angle. 
Rear Adjuster
Adjusts the height or 
projection angle. 
Ventilation Holes 
(intake) 
						

							12 Overview  
Connector Panel
1. Video (RCA jack)
Composite video signal input.
2. S-Video (mini DIN 4-pin)
Y/C (S-video) signal input
3. Component (RCA jacks)
480i Component (Y/C
B/CR) video signal input 
4. RGB/ HDTV (BNC)
DTV Y/P
B/PR or DTV RGB video signal input.
5. Computer (DVI-I)
RGB Computer and DVI signal input.
6. RS-232C (phone jack)
RS-232C control signal input.
7. 12V Trigger (mini jack) 
+12V output, active when the projector is turned on. 
						

							  13   Overview
Controls and Functions
Control Panel
1. POWER (Refer to pages 19, 21 and 32 for more 
information.)
Press this key for ONE second to turn the 
projector on when it is in the standby mode. Or 
press this key twice to turn the unit off.8.POWER light
Indicates whether the unit is on or off
QThe orange light shows when the AC 
power cord is plugged into the wall 
outlet (standby mode). Once in the 
standby mode, you can press the 
POWER key on the projector or the ON 
key on the remote control for ONE 
second to turn the projector on.
QThe green light shows when the power 
is turned on and the projector is 
operating.
QFlashes orange for the first 60 seconds 
during powering up, indicating that the 
lamp is warming up.
QFlashes orange for two minutes after the 
projector is turned off to indicate that 
the lamp is cooling. 2. ARROWS (c/e/d/f) (Refer to page 23 for 
more information.)
Used to select the desired menu items and to 
make  adjustments.
3. EXIT
Exits and saves the menu settings.
4.MENU  (Refer to page 22 for more information.)
Turns the on-screen display control menu on or 
off. 
5.MEMORY (Refer to page 20 and  26 for more 
information.)
Sequentially recalls settings 1 ~ 3 saved to 
memory. 9.LAMP indicator light  (Refer to page 32 for 
more information.)
Indicates the status of lamp. 
Shows a red light when the lamp has 
developed a problem.  Please contact your 
BenQ dealer for assistance.
6.INPUT (Refer to page  19 and  24 for more 
information.)
Switches input sources sequentially.10.Zoom Ring (Refer to page 19 for more 
information.)
Adjusts the size of the image 
QRotate clockwise to enlarge the image or 
rotate counter-clockwise to make the 
image smaller.
7.ENTER (Refer to page 23 for more information.)
Opens the selected item of the menu.11.Focus Ring (Refer to page 19 for more 
information.)
Adjusts the focus of the projected image.
2 3 45
68 7
19 10 11 
						

							14 Overview  
 Remote Control
Notes on Remote Control Operation
QMake sure that there is nothing between the remote control and the IR sensor on the projector that 
might obstruct the infrared beam.
QThe effective range of the remote control is up to 8 meters from the front of the projector or 8 meters 
from the rear of the projector. The remote control must be held at an angle within 30 degrees of the 
projector’s IR remote control sensor.
EXIT
Exits and saves any changes made 
using the menu. (Refer to page 23 for 
more information.) Memory (1, 2, 3 and default) buttons
Restores settings saved in memory 
locations 1, 2 and 3 or restores the 
default settings for the current input 
source. (Refer to page 26 for more 
information.)
LIGHT: Turns the remote control’s 
backlight on. POWER ON/OFF 
Hold ON down for ONE second to 
turn the projector on. Press OFF to 
turn the projector off. (Refer to pages 
19 and 21 for more information.)
ARROWS (c/e/d/f)
Used to select the desired menu or to 
make  adjustments.(Refer to page 23 
for more information.)
ENTER
Opens the selected items of the 
menu. (Refer to page 23 for more 
information.)
MENU
Turns the on-screen display control 
menu on or off. (Refer to page 23 for 
more information.)
SCREEN c / d: Control the screen 
up or down directly. These functions 
are only available for BENQs 
accessory screen. 
Aspect buttons
Selects the image aspect ratio to suit 
the input signal. (Refer to page 25 for 
more information.)Source buttons
Selects an input source to display on 
the projector. (Refer to page 24 for 
more information.)
Picture quality adjustment buttons 
(Refer to page 23 for more 
information.) 
						

							  15   Connecting
Connecting
When connecting any signal source to the projector, be sure to:
1. Turn off all equipment before making any connections.
2. Use the correct signal cables for each source.
3. Ensure the cables are firmly inserted. 
4. Connect all audio signals to external speakers. This projector is not equipped with speakers.
Connecting Video Inputs
Connecting to DVD players
If the selected video image is not displayed after the projector is turned on and the correct video source has been 
selected, please check that the video source is turned on and operating correctly. Also check that the signal cables 
have been connected correctly.
Connecting Progressive Component (DTV Y/PB/PR)
DVD Player
C
R(PR)  CB(PB) YTo audio output 
terminalsTo audio input 
terminals
S-Video cable
Composite video cable
Component video cable
To  Y PBPR terminals
Component video cableTo  Y P
BPR terminalsTo audio output 
terminalsTo audio input 
terminals DTV 
						

							16 Connecting  
Connecting RGBHV (DTV RGB)
Connecting Video Equipment, a PC or another Computer using the 
DVI-I Connector
(not included in the 
accessory kit)To audio output 
terminalsTo audio input 
terminals DTV
To DVI-I terminals DVI-DVI cableTo DVI-I terminalsTo audio output 
terminalsTo audio input 
terminals Video equipment or computer 
with DVI-I terminal 
						

							  17   Setting Up Your Projector
Setting Up Your Projector 
Preparations
1. Remove the lens cap.
2. Turn all of the connected quipment on.
3. Plug the supplied power cord into the AC inlet on the rear of 
this unit. 
4. Plug the power cord into a wall socket and turn the wall 
switch on.
5. Turn on the main power switch at the rear of this unit (next to 
the AC inlet). The POWER light will light up in orange. Press 
POWER ON/OFF key on the remote control or POWER key 
on the projector for ONE second to turn the projector on.
Adjust the Height
There are four adjustment screws on the bottom of the projector. These 
adjustment screws change the image height and projection angle. They 
can lift the projection angle by up to 15 degrees. To adjust the projector, 
you can screw the height adjustments to fine-tune the projection angle. 
If the screen and the projector are not perpendicular to each other, the 
projected image becomes vertical trapezoidal. To correct this problem, 
adjust the value of Keystone in the Installation menu. See page 27 for more 
information. 
						

							18  Setting Up Your Projector  
Setting Up the Screen
Ceiling Installtion for 16 : 9 Screen
Floor Installation for 16 : 9 Screen  
16 : 9 screen size (inch)    
The above numbers are approximate and may be slightly different from the actual measurements.
Screen SizeProjection DistanceOffset
Ty p e H e i g h t W i d t hMin.
(W x 1.63)Max.
(W x 1.99)(W x 0.12)
45.9 22.5 40.0 65.2 79.6 4.8
68.9 33.8 60.0 97.8 119.4 7.2
91.8 45.0 80.0 130.4 159.2 9.6
103.3 50.6 90.0 146.7 179.1 10.8
114.8 56.3 100.0 163.0 199.0 12.0
126.2 61.9 110.0 179.3 218.9 13.2
137.7 67.5 120.0 195.6 238.8 14.4
149.2 73.1 130.0 211.9 258.7 15.6
160.7 78.8 140.0 228.2 278.6 16.8
183.6 90.9 160.0 260.8 318.4 19.2
206.6 101.3 180.0 293.4 358.2 21.6
229.5 112.5 200.0 326.0 398.0 24.0
Projector
Screen
Height 
OffsetProjection Distance
Screen Size (Type)
Width
Projection DistanceScreen Screen Size (Type)
Height 
Projector
Offset
Width 
						

							  19   Basic Operation
Basic Operation
Turning the Power on
Follow the steps below.
1. Make sure the Power light is orange when power is applied 
and the main AC power switch is turned on. 
2. Press and hold the ON key on the remote control or the 
POWER key on the projector for ONE second to turn the 
projector on. The POWER light will flash orange while 
warming up,  then show a steady green.
3.  Searching…. will be displayed on the screen before the 
projector identifies the input signal. This message will 
remain on the screen until a valid signal is detected. 
4. If the horizontal frequency of the input signal exceeds the 
range of the projector (XGA), a message reading  
Unsupported timing  will be displayed on the screen. This 
message will remain on-screen until you change the input 
signal.
The ON key on the remote control and the POWER key on the projector may not work while the projector is cooling. 
(The Power light blinks orange while the projector is cooling.)
Zoom / Focusing
QAdjust the projected image to the size that 
you need using the lens’ zoom ring. Then 
focus the image by rotating the focus ring. 
Selecting Input Source
QWhen the projector is turned on, it will search for the input source 
you last selected.
QYou may directly select the input source by using the remote 
control.
Focus
Zoom in Zoom out 
						

							20  Basic Operation  
Selecting Aspect Ratio
QSelect an aspect ratio to suit the format of the video signal. There are five aspect 
ratios available:
1. ANA (ANAMORPHIC): Scales an image so that it is displayed in the center of 
the screen with a 16:9 aspect ratio.
2. Standard (4:3): Scales an image so that it is displayed in the center of the screen 
with a 4:3 aspect ratio.
3. LB (LETTERBOX): Enlarges an image with letterbox format to display it in full-
screen format with a 16:9 aspect ratio. The upper and lower portions of the 
image are cropped. Use this setting for Cinemascope and Vista video wide screen formats.
4. THRO (Through): One-to-one mapping is performed on the input signal without any scaling with the 
image displayed at the center of the screen.
5. WIDE: A 4:3 aspect ratio image is enlarged NON-linearly in horizontal direction to accommodate 16:9 
full-screen display.
QRefer to page 25 for more information.
Selecting the Video Memory
Q Press the video memory key on the remote control to recall the settings directly. 
QThere are four video settings : MEMORY 1, MEMORY 2 and MEMORY 3 and 
DEFAULT. The DEFAULT key can be used to restore the default setting for the 
current input source.
QRefer to page 26 for more information.
Setting Menu
QPress the MENU button to turn the on-screen display menu on or 
off.
QUse the ARROW buttons (c/e/d/f) to select items in the 
menu or to make various adjustments.
QPress the ENTER button to enter the setting for the current items 
in the menu, or press EXIT to leave and save the settings for the 
current items in the menu.
QRefer to page 23 for more information.