PB8250 Digital Projector
Installation Series
User’s Manual
Welcome
Page 2
Copyright
Copyright 2004 by BENQ Corporation. All rights reserved. No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system or translated into any language or computer language, in any form or by any means, electronic, mechanical, magnetic, optical, chemical,
manual or otherwise, without the prior written permission of this company.
Disclaimer
BENQ Corporation makes no representations or warranties, either expressed or implied, with respect
to the contents hereof and specifically disclaims any warranties, merchantability or fitness for any
particular purpose. Further, BENQ Corporation reserves the right to revise this publication and to
make changes from time to time in the contents hereof without obligation of this company to notify
any person of such revision or changes.
*DLP, Digital Micromirror Device and DMD are trademarks of Texas Instruments. Others are copyrights of their respective companies or organizations.
Page 3
Table of Contents
Important Safety Instructions ............................... 1
MIC Statement ............................................................................47
Table of Contentsv
Page 6
Table of Contentsvi
Page 7
Important Safety Instructions
T
P
man
D
R
Alwa
mo
lamp is on.
I
e ma
wer
Your BenQ projector is designed and tested to meet the latest standards for safety of information technology equipment. However, to ensure safe use of this product, it is important
that you follow the instructions mentioned in this manual and marked on the product.
Caution
•R
•T
•P
o prevent shock, do not open the
cabinet. There are no user-serviceable
parts inside.
lease read this user’s man
you operate your projector. Save this
user’s manual for future reference.
•Alwa
ual before
efer servicing to qualified service
personnel.
ys open the lens shutter or
ve the lens cap when the
remo
projector lamp is on.
•D
o not look straight at the projector
lens during operation. The intense
light beam may damage your eyes.
•In some countries, the line voltage is
NOT stable. This projector is designed
to operate safely within a mains
voltage of 100 to 240 volts, but could
fail if power cuts or surges of ±10 volts
occur. I
voltage ma
recommended that you connect your
projector through a power stabilizer,
surge protector or uninterruptible
power
n areas where the mains
y fluctuate or cut out, it is
supply (UPS).
Important Safety Instructions1
Page 8
Safety Instructions
1.The lamp becomes extremely hot
during operation. Allow the projector to cool for approximately 45
minutes prior to removing the lamp
assembly for replacement.
2.Do not operate lamps beyond the
rated lamp life. Excessive operation
of lamps beyond the rated life could
cause them to explode on rare occasions.
4.Do not place this product on an
unstable cart, stand, or table. The
product may fall, sustaining serious
damage.
5.To reduce the risk of electric shock,
do not disassemble this appliance.
Take it to a qualified technician
when service or repair is required.
Incorrect reassembly can cause
cause malfunction of the projector
or electric shock when the appliance
is subsequently used.
3.Never replace the lamp assembly or
any electronic components unless
the projector is unplugged.
Important Safety Instructions2
6.This product is capable of displaying
inverted images for ceiling mount
installation. Please use BenQ’s Ceiling Mounting Kit for mounting the
unit and ensure it is securely
installed.
Page 9
Safety Instructions (Continued)
7.Do not block the ventilation holes.
- Do not place this unit on a blanket,
bedding or any other soft surface.
- Do not cover this unit with a cloth or any
other item.
- Do not place inflammables near the
projector.
If the ventilation holes are seriously
obstructed, overheating inside the unit
may result in a fire.
8.Do not place this unit in any of the
following environments.
- Space that is poorly ventilated or
confined. Allow at least 50 cm clearance
from walls and free flow of air around
the projector.
- Locations where temperatures may
become excessively high, such as the
inside of a car with all windows rolled
up.
- Locations where excessive humidity,
dust, or cigarette smoke may
contaminate optical components,
shortening the projector’s life span and
darkening the image.
- Locations near fire alarms
- Locations with an ambient temperature
above 35°C / 95°F
9.Always place the unit on a level, horizontal surface during operation.
- Do not use if tilted at an angle of more
than 10 degrees left to right, nor at angle
of more than 15 degrees front to back.
Using the unit when it is not fully
horizontal may cause a malfunction of,
or damage to, the lamp.
10.Do not stand the unit on end vertically.
Doing so may cause the unit to fall over,
causing injury or resulting in damage to
the unit.
11.Do not step on this unit or place any
objects upon it.
Besides probable physical damage to the
unit, doing so may result in accidents
and possible injury.
Important Safety Instructions3
Page 10
Introduction
Projector Features
The projector integrates high-performance optical engine projection and a user-friendly
design to deliver high reliability and ease of use.
The projector offers the following features:
•Full-function remote control with laser pointer/ remote mouse function
•High quality manual zoom lens
•One-key auto-adjustment to display the best picture quality
•Digital keystone correction to correct distorted images
•Adjustable color balance control for data/video display
•Ultra-high brightness projection lamp
•Ability to display 16.7 million colors
•On-screen menus in 10 languages: English, French, German, Italian, Spanish, Russian,
Traditional Chinese, Simplified Chinese, Japanese and Korean.
•Switchable Normal/ Economic mode to reduce the power consumption
•Powerful AV function to provide high quality AV picture
•HDTV compatibility (YP
•Two PC input terminals and one PC output terminal
•Replaceable air filter
bPr)
Note: The brightness of the projected image will vary depending on the ambient lighting conditions and contrast/brightness settings.
Introduction4
Page 11
Shipping Contents
The projector is shipped with the cables required for connection to a PC and to video equipment. Carefully unpack and verify that you have all of the items shown below. If any of these
items are missing, please contact your place of purchase.
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Batteries 3-2 Power Converter User’s Manual CD Quick Start GuideWarranty Booklet
Air filter grill
(See page 34 for detailed information.)
4.Wireless Pro
5.Presentation Pro
6.DVI-I cable
External control panel
(See page 8 for detailed
information.)
Projection lens adjuster
Projection lens
Front adjuster button
Front IR remote sensor
Front adjuster button
Back View
Back IR remote sensor
Connector panel
(See page 7 for more
information.)
Bottom View
Front adjuster
Ventilation grill
Rear adjuster
Lamp door
Front adjuster
Rear adjuster
Introduction6
Rear adjuster
Page 13
Connector Panel
S-Video jack
RGB signal input
(PC/ YPbPr/ YCbCr)
RGB
signal output
Audio/ Video
connector
DVI-I connector
RS 232 control port
For external control
systems and used by
service personnel.
PC Audio jack
USB connector
Introduction7
Page 14
Controls and Functions
for mor
mo
Ke
-/+
mor
Me
mor
matio
ma
Bl
mor
om r
External Control Panel
13
12
10
9
5
3
1
2
6
1.Power (Refer to pages 17 for mor
information.)
Turns the projector on or off.
2.Source (Refer to page 20 for mo
information.)
Sequentially selects the input signal
RGB, DVI, YP
3. Left
4.Right
When the on-screen menu is not
activated, #3 and #4 function as
ystone -/+
Ke
Refer to page 19 for mor
5.Exit
Exits and saves the menu settings.
6.Me
7.Auto (Refer to page 20 for more infor-
nu
Turns the on-screen display control
menu on.
When the on-screen menu is activated,
the #3 to #6 buttons are used as
directional arrows to select the desired
menu items and to make adjustments.
Refer to page 25 for mor
n.)
matio
Automatically determines the best
picture timings for the displayed
image.
bPr, S-Video orVideo.
hot keys.
e information.
e information.
e
re
11
4
8
7
8.Blank (Refer to page 21 for more informa
tion.)
Used to hide the screen image. You can
press Bl
the image back.
9.Power indicator light
Lights up or flashes when the projector
is under operation.
10.Temperature warning light (Refer to
page 38 for mor
Flashes red if the projector’s
temperature becomes too high.
11.Lamp indicator light (Refer to page 36
for more information.)
Indicates the status of the lamp. Lights
up or flashes when the lamp has
developed a problem.
12.Zoom r
Adjusts the size of the image.
Rotate clockwise to enlarge the image
or rotate counter-clockwise to make
the image smaller.
13.Focus ring
Adjusts the focus of the projected
image.
ank again or ReReturn to bring
e information.)
ing
Introduction8
Page 15
Remote Control Description
Z
)
Front View
Power (17, 18)
Down/ Menu (25)
Left/ Keystone -
Right/ Keystone + (19)
Auto (20)
L-Click/ R-click (22)
oom in +/ Zoom out - (22)
Return (22, 23)
PIP Position (22)
PIP Source (22)
LED (21)
Source (20)
Laser Pointer (21
Exit (25)
Blank (21)
Mouse Pad (22)
Drag (22)
Volume +/- (22)
Mute (22)
PIP Size (22)
Freeze (23)
Notes on Remote Control Operation
Make sure that there are no obstacles between the remote control and the IR sensors on the
projector that might obstruct the infra-red beam.
Preset (32)
Introduction9
Page 16
Remote Control Effective Range
Infra Red (IR) remote control sensors are located on the front and the back of the projector.
The remote control must be held at an angle within 30 degrees of the projector’s IR remote
control sensors to function correctly. The distance between the remote control and the sensors should not exceed 6 meters (19.5 feet).
6m
Warning Messages on the Back of the Remote Control
The laser beam is visible. It
is necessary to depress
the Laser button for continuous output.
The laser pointer is not a
toy. Parents should treat
them with the appropriate
care. This is a useful tool
for adults that should be
used by children only with
adequate supervision.
ATTENTION
LASER DIODE
ACHTUNG
Introduction10
Page 17
Installing or Replacing the Batteries
Push and open the
1
battery compartment
lid in the direction
shown.
Avoid excessive heat and humidity. There may be danger of an explosion if the batteries are
incorrectly replaced. Replace only with the same or equivalent type recommended by the
manufacturer. Dispose of the used batteries according to the manufacturer’s instructions.
Install batteries as
2
indicated by the
diagram inside the
compartment.
Position the lid over
3
the compartment
and snap it back
into place.
Introduction11
Page 18
Setting Up Your Projector
Choosing a Location
Your projector is designed to be installed in the four installation configurations shown here:
Floor front, Ceiling front, Floor rear, Ceiling rear. Your room layout or personal preference
will dictate which installation configuration you use.
I. Floor frontII. Ceiling front
III. Floor rear
For further information on the four configurations, please refer to page 29.
If you place the projector above or below the screen, you have to tile it down or up to center
the image on the screen, in these situations image distortion will occur. Use the Keystone
function to correct the distortion. See page 19 for keystone correction.
Making Connections
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.
IV. Ceiling rear
Setting Up Your Projector12
Page 19
Connecting to a Laptop or Desktop Computer
RGB
VGA cable
To RGB input
USB cable
USB
Audio cable
PC audio
VGA cable
RGB
A Mac adapter (an optional accessory) may be necessary needed if you are connecting to an
older Macintosh computers.
The USB cable is required if you intend using mouse functions on the remote control.
To RGB
input
USB
PC
audio
Connecting Equipment to the Component Video Input
Component Video cable
RGB
YPbPr
AV equipment
The projector is capable of displaying various High Definition TV display modes. Some of
these sources are:
•Digital-VHS (D-VHS) player•DVD player
•Satellite Dish HDTV receiver•Digital TV tuners
Most of these sources will provide an analog component video output, a standard VGA output, or a YP
The projector is capable of accepting HDTV data through a Component Video connector.
Use a Component Video cable that came with your projector to display these images.
The following standards are supported in the HDTV function:
bPr (default) format.
•480i•480p
•576i•576p
•720p (50/ 60 Hz)•1080i (50/ 60 Hz)
Setting Up Your Projector13
Page 20
Connecting to Video or S-Video Devices
S-Video devices
Video devices or VCR
S-Video cable
S-Video
Video cable
Audio cable
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 is turned on and operating correctly. Also check that the signal cables have been connected correctly.
Connecting to Display Devices
If you want to monitor your presentation close-up on a monitor as well as on the screen, you
can connect the RGB signal output port on the projector to an external monitor with a VGA
cable or D-Sub - DVI-I cable.
VGA cable or D-Sub DVI-I cable
Setting Up Your Projector14
Page 21
Adjusting the Height
The projector is equipped with 2 quick-release adjuster feet.
1.Lift the projector up and press
the adjuster button to release
the adjuster. The adjuster will
drop into position and be
locked.
2.Screw the rear adjuster feet to
fine-tune the projection angle.
If the screen and the projector are not perpendicular to each other, the projected
image becomes vertically trapezoidal. To
correct this situation, adjust the value of
Keystone in the Display menu, on the projector control panel or on the remote control.
Screen Size
Place the projector at the required distance from the screen according to the required picture
size (see the table on the next page).
2.Plug the power cord into the projector and into a wall socket.
3.Turn on the wall socket switch (where fitted).
4.Turn the main power switch on. The Po
wer indicator lights orange.
5.Press and hold Po
indicator light flashes green when the power is turned on.
6.The start up procedure takes about 30 seconds after pressing Po
of start up, a default BenQ logo appears.
7.Next, the projector starts to search input signals. Irrespective of selected input source,
the screen shows “Acquiring Signal” at the bottom right corner of the screen. If
there is no input source detected, one of six messages will be displayed on the screen
wer on the remote control or projector to start the unit. The PoPower
wer. In the later stage
Operation17
Page 24
continuously: “A
A
DVI
log YP
S-V
Comp
So
Po
P
log YP
8.You can also press So
input signal. For more information, refer to page 20.
If the frequency/ resolution of the input signal exceeds the projector’s operating range, you
will see the message “Out of Range” displayed on a blank screen.
Shutdown
1.Press PoPower and a warning message appears. To turn the projector off, press Po
2.The P
To protect the lamp, the projector will
not respond to any commands during
the cooling process.
orange and the lamp shuts down,
the fans continue to run for
approximately 90 seconds to cool
down the projector.
nalog RGB Searching”, “ D VDVI-A Searching”, “DVI
bPr Searching”, “S-V
wer again.
ideo Searching”, “Comp
urce on the projector or remote control to select your desired
ower indicator light flashes
-D Searching”, “ A nAna-
osite Video Searching”.
3.Turn the main power switch off.
4.Disconnect the power cord from the wall socket.
Do not unplug the power cord before the projector shutdown sequence is complete or during
the 90-second cooling down process.
If the projector is not properly shut down, to protect the lamp, when you attempt to re-start the
projector within hours, the fans will run for a few minutes to cool down. Press Power again to
start the projector after the fans stop.
Operation18
Page 25
Digital Keystone Correction
Lef
Rig
Rig
Le
Ke
Ke
Ke
Me
Di
Left
Rig
Keystoning refers to the situation where the projected image is noticeably wider at either the
top or bottom. It occurs when the projector is not perpendicular to the screen.
To correct this, besides adjusting
the height of the projector, you will
need to manually correct it following ONE of these steps.
t/ Rig
1. Press Lef
on the control panel of the projector to display the status bar labelled
Keystone. Press Rig
keystoning at the top of the image.
Press Le
ft to correct keystoning
at the bottom of the image.
2. Press Ke
on the remote control to display the
status bar labelled Keystone. Press
ystone to correct keystoning
Ke
at the top of the image. Press
ystone to correct keystoning at
Ke
the bottom of the image.
ht (hot key)
ht to correct
ystone/ KeKeystone
3. Press Me
and adjust the values by pressing Left
nu key on the projector or the remote control. Go to
stone on the remote control.
For example,
1. Press Right on the projector or
2. Press Keystone
or
Right on the projector or
on the remote control when you
Left on the projector or
Keystone on the remote control
Keystone
Keystone
3. Press
Keystone
are in Display --> Keystone menu.
0
1. Press
2. Press
or
3. Press Left on the projector or Keystone on the remote control when you are in
Picture --> Keystone menu.
0
Di
splay --> KeKeystone
/ Rig
ht on the projector or KeKeystone/ KeKey-
on the remote control
Keystone
Keystone
-16
+16
Operation19
Page 26
Source Selection
Au
To sequentially select input sources, press
Source on the projector control panel or the
remote control. It may take you a few seconds when the projector is searching for
input signals. The selected source will be
displayed at the bottom right of the screen
for 3 seconds.
Auto Adjustment
In some cases, you may need to optimize the
picture quality. To do this, press Au
control panel of the projector or on the
remote control. Within 3 seconds, the builtin Intelligent Auto Adjustment function will
re-adjust the values of Frequency and Clock
to provide the best picture quality.
to on the
The current source information will be displayed at the bottom right of the screen for
3 seconds, as below.
Analog RGB
1280 x 854 / 60Hz
Presentation Mode
The screen will be blank while Auto is functioning.
Operation20
Page 27
Blank
Bla
Bl
BLANK
In order to draw the audience’s full attention to the presenter, you can use Bla
hide the screen image. Press Bl
restore the image. A word “BLANK
at the bottom right corner of the screen
when the image is hidden.
BLANK
Zoom / Focusing
Adjust the projected image to your
desired size using the lens’ zoom ring.
Then focus the image by rotating the
focus ring. Refer to the screen size table
on page 15.
ank again to
” appear
nk to
Focus ring
Laser Pointer Operation
The Laser Pointer is a presentation aid for professionals. It
emits red colored light when you press it and the LED indicator lights up green. Do not look into the laser light window or
shine the laser light beam on yourself or others. Refer to the
warning messages on the back of the remote control and the
attached “User Information” prior to using it.
Min. zoom
Max. zoom
Operation21
Page 28
Mouse Function Operation
Mo
Mo
+
Zoom
-
Connect the projector to your PC or notebook
with a USB cable prior to using these functions.
The Mo
mouse function. When the displayed image is magnified, use the Mo
play areas.
The L-Click and R-Click act as the Left (L) and
Right (R) buttons of a computer mouse.
The Drag toggles between ON and OFF for the
drag function of the remote mouse.
use Pad can take over the PC or notebook
use Pad to move around the dis-
Zoom In + / Zoom Out -
By pressing ZoZoom +, the center of the picture will be magnified.
When the +
fied. Use the Mouse Pad to navigate the image. By pressing Zoom
, the size of the image is reduced. When the again, the picture is further reduced until it is restored to the original size. You can also restore the actual image size by pressing
Return.
button is pressed again, the picture is further magni-
button is pressed
-
Volume Adjustment
Adjust the loudness by pressing VVolume + / - . Or press MuMute to
mute the sound.
PIP (Picture In Picture) Operation
By pressing the PIP-Source, PIP-Pos and PIP-Size hot
keys, you can enable the PIP (Picture In Picture)
function and choose the position and size of the PIP
image.
Refer to page 33 for more information.
Operation22
Page 29
Freeze
F
The image is frozen when FrFreeze is pressed. An icon will
appear in the lower right corner of the screen. To release the
function, press F
change the input source and release the pause function).
reeze again, ReReturn or SoSource (this will
Preset Mode Selection
Press PPreset to select a operation mode that suits your need.
There are several operation modes available for different
types of signals.
PC / DVI Signal Input
PresentationVividVideoEconomic
YPbPr / S-Video / Video Signal Input
GamingVideoCinemaEconomic
Refer to page 32 for more information.
Operation23
Page 30
Menu Operation
Menu System
Please note that the OSD menus vary according to the signal type selected.
Functions available when receiving different signal types...
Sub-Menu
Display
Image
Source
Analog RGB /
DVI
Keystone
Brightness
Contrast
Phase
H Size
Auto Resize
H Position
V Position
Color Temp
Information
Mirror
Source
Vo lume
Tr eble
Bass
Mute
YPbPr (480p/
576p/ 720p/ 1080i)
Ratio
H Position
V Position
Color
Tint
Color Temp
YCbCr (480i/ 576i)
/ S-Video / Video
Keystone
Brightness
Contrast
Color
Tint
Ratio
System
Sharpness
Color Temp
Information
Control
PIP
Language
OSD -- OSD Pos., OSD Time
Setup -- Source Scan, Keystone Hold, Mirror Hold, Blank Time,
Auto Off, User Logo
Economic Mode
Preset Mode --
(PC signal input only) Presentation Mode, Vivid Mode, Video Mode,
Economic Mode
(YPbPr/ YCbCr/ S-Video/ Video signal input) Gaming Mode, Video
Mode, Cinema Mode, Economic Mode
Reset
Lamp Hour
Main Page:
PIP Source
PIP Size
PIP Pos.
H Position
V Position
More Options
Sub Page:
Brightness
Contrast
Color
Tint
Sharpness
System
Operation24
Page 31
Using the menus
(
Me
Left
Rig
Ke
Le
Ke
Di
Ke
The projector is equipped with on-screen display (OSD) menus for making various adjustments and settings.
There are 10 different menu languages. (
The following example describes the adjustment of the keystone.
1.Press Me
nu on the projector or remote
control to turn the on-screen menu on.
Refer to page 31 for more details.)
4.Adjust keystone values by press/ Rig
ing Left
jector or Ke
ystone/ KeKeystone
on the remote control.
ht on the pro-
2.Use Le Ke
control to select Di
3.Use Exit or
ft/ RiRight on the projector or
ystone/ KeKeystone on the remote
splay menu.
MeMenu on the projector
or Down/ Menu on the remote
control to select Ke
ystone.
5.PressExit on the projector or
press Exit twice* on the
remote control to leave and save
the settings.
*The first press leads you back to the
submenu and the second press closes
the on-screen menu.
Operation25
Page 32
1. Display Menu
Analog RGB/ DVI/ YPbPr (480p, 576p, 720p, 1080i) signal input
FUNCTIONDESCRIPTION
Keystone
Brightness
Contrast
Corrects any keystoning of the image. Refer to page 19 for more information.
Adjusts the brightness of the image. The higher the value, the brighter
the image. And lower the setting, darker the image. Adjust this control
so the black areas of the image appear just as black and that detail in the
dark areas is visible.
-25
Adjusts the degree of difference between dark and light in the image.
The higher the value, the greater the contrast.
-25
0
0
+25
+25
This function allows you to adjust the clock
phase to reduce image distortion.
Phase
H Size
Adjusts the horizontal width of the image.
YCbCr (480i, 576i)/ S-Video/ Video signal input
FUNCTIONDESCRIPTION
Keystone
Brightness
Contrast
Color
Tint
As above.
As above.
As above.
Increases or decreases the color intensity of the image.
Adjusts the color tones of the image. The higher the value, the more reddish the image becomes. The lower the value, the more greenish the
image becomes.
Operation26
Page 33
2. Image Menu
*
Analog RGB/ DVI signal input
FUNCTIONDESCRIPTION
Makes the best fit of the image to the screen,
Auto Resize
1. On 2. Off 3. 16:9
Adjusts the horizontal position of the projected image.
H Position
Adjusts the vertical position
of the projected image.
V Position
-30+30
-30
Adjusts the white color. The higher the value, the more reddish white the
Color Temp
Information
image becomes. The lower the value, the more bluish white the image
becomes.*
Shows the current image resolution.
*About color temperatures:
There are many different shades that are considered to be “white” for various purposes. One
of the common methods of representing white color is known as the “color temperature”. A
white color with a low color temperature appears to be reddish white. A white color with a
high color temperature appears to have more blue in it.
YPbPr (480p, 576p, 720p, 1080i) signal input
FUNCTIONDESCRIPTION
Users have 2 options for the image ratio.
Ratio
1. 4 : 3 2. 16 : 9
H Position
V Position
As above.
As above.
+30
Color
Tint
Color Temp
Increases or decreases the color intensity of the image.
Adjusts the color tones of the image. The higher the value, the more reddish the image becomes. The lower the value, the more greenish the image
becomes.
As above.
Operation27
Page 34
YCbCr (480i, 576i)/ S-Video/ Video signal input
FUNCTIONDESCRIPTION
Ratio
System
Sharpness
Color Temp
Information
As above.
Shows the Video input system format,
1.NTSC 2. PAL 3.SECAM 4. YUV.
Adjusts the image to make it look sharper or softer.
As above.
As above.
Operation28
Page 35
3. Source Menu
FUNCTIONDESCRIPTION
The projector can be installed on a ceiling or behind a screen, or with one
or more mirrors. Contact your dealer for the ceiling mount bracket
(optional accessory) if you need to install the projector on your ceiling.
•Floor front: Select this setting
with the projector set on the
floor and audience viewing the
projected images from the front
side of the screen. This is the
most common setting.
•Ceiling front: Select this setting
with the projector suspended
from the ceiling and audience
viewing the projected images
from the front side.
Mirror
•Floor rear: Select this setting
when the projector is placed near
the floor and behind the screen.
A special rear projection screen is
required.
Source
Volume
Treble
•
Ceiling rear: Select this setting
when the projector is suspended
from the ceiling and placed
behind the screen. A special rear
projection screen is required.
Shows the current signal source.
Adjusts the volume level.
Adjusts the treble level. (-5 ~ 5)
Operation29
Page 36
Bass
Off
On
Mute
Adjusts the bass level. (-5 ~ 5)
On
Off
Operation30
Page 37
4. Control Menu
FUNCTIONDESCRIPTION
Language sets the language for the OSD control menus.
Language
OSD
Use the / key to select the desired language from among English,
French, German, Italian, Spanish, Russian, Traditional Chinese, Simplified
Chinese, Japanese and Korean.
OSD Pos.
Selects a desired OSD position.
OSD Time
Sets the length of time the OSD will remain active after your last button
press. The range is from 5 to 60 seconds.
Source Scan
Sets whether the projector searches automatically for input signals. If the
source scan is on, the projector will search for input signals in the following order: Analog RGB --> DVI-A --> DVI-D --> Analog YPbPr --> SVideo --> Composite Video until it acquires a signal. If the function is not
activated, the projector selects the last input signal.
Keystone Hold
When selected, preserves the last keystone correction value even when the
projector is restarted.
Setup
Mirror Hold
When selected, preserves the last mirror correction value even when the
projector is restarted.
Blank Time
Determines the length of time before the projector will automatically
shutdown when Blank is activated.
Auto Off
Sets the length of time before the projector will automatically shutdown
when there is no input signal detected.
User Logo
Enables the user to select which logo screen will appear during projector
start-up. Three modes are available: Default (BENQ logo), black screen or
blue screen.
Operation31
Page 38
Preset Mode
Vi
Mo
Vi
Mo
E
Gam
Vi
Mo
Ci
E
Preset modes are provided so you can optimize your projector image setup to suit your program type.
PC/ DVI Signal input
1.PPresentation Mode: Is designed for presentations. The brightness is
emphasized in this mode.
vid Mo
2.Vi
brightness are well-balanced.
3.Vi
4.E
deo Mo
in their natural color.
conomic Mode: Use this mode to reduce the system noise and
reduce the power consumption by 20%. The lamp life is also
extended with lower light output.
de: Is perfect for playing games. The color saturation and
de: Is suitable for cinematic enjoyment displaying images
YPbPr/ YCbCr/ S-Video/ Video Signal Input
1.Gam
ing Mode: Is suitable for playing video games in a bright living
room.
deo Mo
2.Vi
enjoying TV movies.
3.Ci
4.E
nema Mode: With a lower color temperature, it is suitable for
enjoying cinematic movies.
conomic Mode: Use this mode to reduce the system noise and
reduce the power consumption by 20%. The lamp life is also
extended with lower light output.
de: With a higher color temperature, it is suitable for
Reset
Lamp Hour
Returns all settings to the factory preset values.
Displays the number of hours the lamp has been used.
Operation32
Page 39
5. PIP (Picture In Picture) Menu
Your projector is capable of displaying images simultaneously from two input sources, which
enhances your presentation in a more effective way.
These functions are available only when the input source is PC and the PIP source is Video
or S-Video.
FUNCTIONDESCRIPTION
PIP Source
PIP Size
PIP Position
Selects the source for the PIP.
Press the / keys to scroll through the four alternatives: Off, Small,
Medium, Large.
When the resolution of the PC signal is 1280x1024 (SXGA), the
selected Large PIP size will be reduced to the Medium size.
Selects a desired position for the PIP.
H Position
V Position
More Options
Brightness
Contrast
Color
Tint
Sharpness
System
Adjusts the horizontal position of the PIP image.
Adjusts the vertical position of the PIP image.
Press the / keys to select more PIP functions including Brightness,
Contrast, Color, Tint, Sharpness and System.
Adjusts the brightness of the PIP image.
Adjusts the degree of difference between dark and light in the PIP image.
The higher the value, the greater the contrast.
Increases or decreases the color intensity of the PIP image.
Adjusts the color tones of the PIP image. The higher the value, the more
reddish the image becomes. The lower the value, the more greenish the
image becomes.
Adjusts the image to make it appear sharper or softer
Shows Video input system format, NTSC, PAL, SECAM or YUV.
Operation33
Page 40
Maintenance
Your projector needs little maintenance. Things you have to do on a regular basis are keep
the lens clean and clean the air filter to prevent overheating.
Never remove any parts of the projector except the lamp and air filter. Contact your dealer if
other parts needs replacing.
Cleaning the lens
Clean the lens whenever you notice dirt or dust on the surface.
■ Use a canister of compressed air to remove dust.
■ If there is dirt or smears, use lens-cleaning paper or moisten a soft cloth with lens cleaner to
gently wipe the lens surface.
Never rub the lens with abrasive materials.
Cleaning the projector case
Before you clean the case, turn the projector off and unplug the power cord.
■ To remove dirt or dust, wipe the case with a soft, dry, lint-free cloth.
■ To remove stubborn dirt or stains, moisten a soft cloth with water and a neutral detergent.
Then wipe the case.
Never use wax, alcohol, benzene, thinner or other chemical detergents. These can damage the
case.
Cleaning and replacing the air filters
It is necesssary to clean the air filters periodically. If the filters are not cleaned, they can
become clogged with dust and prevent proper ventilation. This can cause overheating and a
malfunction of the projector.
A warning message like the one pictured to the
right will be displayed for 10 seconds every 300
hours to remind you to clean the filters.
1.Turn the project off and wait until the fans
stop running.
2.Disconnect the projector from any cables.
3.Open one air filter cover from the left and draw another one from the front sides of the
projector.
From the front side:
From the left side:
Maintenance34
Page 41
4.Use a small vacuum cleaner designed for computers
and other office equipment to clean the filters. Or
use a soft brush (such as a clean artist’s paintbrush)
to gently sweep the dust away.
If the dirt is difficult to remove or the filters are
broken, contact your place of purchase to replace
them.
5.Replace the filters then press the covers back until
they click into place.
If the covers are not correctly seated in place, you
will be reminded by a message displayed on the
screen every three minutes. The projector will
automatically shut down after 10th minutes if there
has been no further action taken. Re-install the
filters securely, then turn on the power again.
Storing the projector
If you need to store the projector for an extended time, please follow the instructions below.
■ Make sure the temperature and humidity of the storage area are within the recommended
range for the projector. Please refer to the Spec. page in the manual or consult your dealer
about the range.
■ Retract the adjuster feet.
■ Remove the batteries from the remote control.
■ Pack the projector in its original packing or equivalent.
Transporting the projector
It is recommended that you ship the projector with its original packing or equivalent. When
you carry the projector yourself, please use the provided soft carry case.
Maintenance35
Page 42
Lamp Information
Lamp I
Lamp in
Use and Replacement of the Lamp
When the Lamp I
ndicator lights up red or a message appears suggesting it is time to replace
the lamp, please install a new lamp or consult your dealer. An old lamp may cause a malfunction in the projector and in some instances the lamp may explode.
For more detailed information, please refer to page 38.
The Lamp indicator light and Temperature warning light will light up if the lamp becomes too
hot. Turn the power off and let the projector cool for 45 minutes. If the Lamp or Temp indicator
still lights up after turning the power back on, please contact your dealer.
The following Lamp warning displays will remind you to change the lamp.
Message
Status
The lamp has been in operation for 1980 hours. Install
a new lamp for optimal performance.
The lamp has been in operation for 2980 hours, and
the power will shutdown in 20 hours time. A new lamp
should be fitted to avoid the inconvenience when the
projector runs out of lamp time.
The lamp has been in operation for over 3000 hours.
The message will flash on the center of the screen with
the Lamp in
dicator lighting up red for 40 seconds and
shut down afterwards.
The out of lamp time warning is calculated on normal mode operation. If the projector is run in
economy mode the allowable lamp time is 3000 hours. If the projector is used in both normal
and economy modes then the allowable lamp time is calculated at a rate of 66% while the
economy mode is active. In this case the out of lamp time warning will occur between 2000
and 3000 hours depending on the percentage of economy mode usage.
Lamp Replacement
To reduce the risk of electrical shock, always turn the projector off and disconnect the power
cord before changing the lamp.
Maintenance36
Page 43
To reduce the risk of severe burns, allow the projector to cool for at least 45 minutes before
replacing the lamp.
To reduce the risk of injuries to fingers and damage to internal components, use caution when
removing lamp glass that has shattered into sharp pieces.
To reduce the risk of injuries to fingers and/or compromising image quality by touching the
lens, do not touch the empty lamp compartment when the lamp is removed.
This lamp contains mercury. Consult your local hazardous waste regulations to dispose of
this lamp in a proper manner.
Step 1. Turn the power off and disconnect the projector from the wall socket.
Step 2. Turn the projector over. Then loosen the
screws and remove the lamp cover. If the
lamp is hot, avoid burns by waiting for 45
minutes until the lamp has cooled.
Step 3. Loosen the screw that fixing the lamp to
the projector. If the screw is not loosened
completely, they could injure your fingers. It is strongly recommended that you
use a magnetic-head screwdriver.
Step 4. Lift the handle so that it stands up. Use the
handle to slowly pull the lamp out of the
projector.
Pulling it too quickly may cause the lamp to break
and scatter broken glass in the projector.
Do not place the lamp in locations where water
might splash on it, children can reach it, or near
flammable materials.
Do not insert your hands into the projector after
the lamp is removed. If you touch the optical components inside, it could cause color unevenness and distortion of the projected images.
Step 5. Insert a new lamp. Make sure the handle is fully locked and tighten the screw firmly.
Loose screw may cause a bad connection, which could result in malfunction.
Do not over tighten the screw.
Maintenance37
Page 44
Step 6. Re-install the lamp cover and tighten the
D
mp c
D
lamp i
use dama
R
Exit
Me
EXIT
Step 7. R
i. Press and hold Exit
for 3 seconds to display the total used
lamp time.
ii. Press Me
the remote control to access the lamp
hour timer. An adjustment message
will appear.
iii. Press W or X to reset lamp hours
and press EXIT
screw. D
lamp c
is replaced, reset the total lamp operation
time. D
replaced as this could cause dama
o not turn the power on with the
over remomoved. Whenever the lamp
o not reset if the lamp i
eset the lamp counter
on the projector
nu on the projector or on
to leave.
s not
ge.
Te mp Information
When the Temperature warning light is on, it is warning you of the following possible problems:
1.The internal temperature is too high.
2.The fans are not working.
Turn the projector off and contact qualified service personnel for further help.
For more detailed information, please refer to "Indicators" on page 38.
Indicators
Illustration
1.Blank -- : Light OFF
2. : Light flashing
3. : Light ON
4.
5.
O : Orange light
R : Red light
G : Green light
6.
Maintenance38
Page 45
LEDStatus & Description
Or
PowerTempLamp
Power events
The projector has just been connected to a power outlet.
O O O
Stand-by mode.
O
O
G
--
--
--
(1) The projector needs 90 seconds to cool down as it was
abnormally shut down without the normal cooling down
process. Or
(2) The projector needs to cool for 90 seconds after the power
is turned off.
The PoPower indicator light is flashing during powering up.
The projector is under normal operation.
G
Lamp events
---
--
--
Thermal events
--
-
--
R
R
R
R
G
The lamp counter has developed a problem.
It is warning you that lamp usage has exceeded 2000 / 3000
(Economic Mode) hours. Replace the projection lamp with a
new one immediately.
The lamp is not properly attached or the lamp is damaged.
Please contact your dealer for assistance.
The projector has shutdown automatically. If you try to restart the projector, it will shutdown again. Please contact your
dealer for assistance.
The projector has shutdown automatically. If you try to restart the projector, it will shutdown again. Please contact your
dealer for assistance.
The projector has shutdown automatically. If you try to re-
-
G
R
R
-
start the projector, it will shutdown again. Please contact your
G
dealer for assistance.
The projector has shutdown automatically. If you try to restart the projector, it will shutdown again. Please contact your
dealer for assistance.
Maintenance39
Page 46
The projector has shutdown automatically. If you try to re-
G
G
O
O
O
R
R
R
R
R
R
G
-
start the projector, it will shutdown again. Please contact your
G
dealer for assistance.
The projector has shutdown automatically. If you try to restart the projector, it will shutdown again. Please contact your
G
dealer for assistance.
The projector has shutdown automatically. If you try to restart the projector, it will shutdown again. Please contact your
dealer for assistance.
The projector has shutdown automatically. If you try to restart the projector, it will shutdown again. Please contact your
G
dealer for assistance.
The projector has shutdown automatically. If you try to restart the projector, it will shutdown again. Please contact your
G
dealer for assistance.
The projector has shutdown automatically. If you try to restart the projector, it will shutdown again. Please contact your
For product information, product assistance, service information, or to order accessories,
please visit the BENQ Corporation website at http://www.BenQ.com
.
Maintenance41
Page 48
Troubleshooting
Common Problems & Solutions
THE PROJECTOR DOES NOT TURN ON.
CauseRemedy
Plug the power cord into the AC inlet on the
There is no power from the power
cable.
Attempting to turn the projector on
again during the cooling process.
NO PICTURE
CauseRemedy
projector, and plug the power cord into the
power outlet. If the power outlet has a switch,
make sure that it is switched on.
Wait until the cooling down process has
completed.
The video source is not turned on or
connected correctly.
The projector is not correctly
connected to the input source device.
The input signal has not been
correctly selected.
The lens cap is still attached to the
lens.
Turn the video source on and check that the
signal cable is connected correctly.
Check the connection.
Select the correct input signal with the Source
key on the projector or remote control.
Remove the lens cap.
BLURRED IMAGE
CauseRemedy
The projection lens is not correctly
focused.
The projector and the screen are not
aligned properly.
The lens cap is still attached to the
lens
Adjust the focus of the lens using the focus
ring.
Adjust the projection angle and direction as
well as the height of the unit if necessary.
Remove the lens cap.
REMOTE CONTROL DOES NOT WORK
CauseRemedy
The batteries are out of power.Replace both of the batteries with new ones.
There is an obstacle between the
remote control and the projector.
You are too far away from the
projector.
Troubleshooting42
Remove the obstacle.
Stand within 6 meters (19.5 feet) of the
projector.
Page 49
Specifications
Projector Specifications
Technical Specifications
All specifications are subject to change without notice.
General
Product nameDigital Projector
Model namePB8250 1024X768 XGA
Power supplyAC100 ~ 240V, 4.5A, 50/60 Hz (Automatic)
Power consumption395W (Max)
Mechanical
Dimensions320 mm (W) x 106 mm (H) x 236 mm (D)
Operating temperature
range
Weight7.7 lbs (3.5 Kg)
0°C ~ 40°C
Input terminal
Computer input
RGB inputD-sub 15-pin (female)
DVI-I input
Video signal input
S-VIDEOMini DIN 4-pin port x1
VIDEORCA jack x1
HDTV signal inputD-sub <--> YP
Audio signal input
Audio 1Mini jack stereo port
bPr RCA jack x3, through RGB input
Output
USB mouse connector A/B series x1
Speaker 1 watt x 2
RGB
Audio L/R
BENQ warrants this product against any defects in material and workmanship, under
normal usage and storage.
Exclusion to Warranty: The lamps are considered as
ranted for 90 days or 500 hours, whichever occurs first. Proof of purchase date will be
required with any warranty claim. In the event this product is found to be defective
within the warranty period, BENQ’s only obligation and your exclusive remedy shall be
replacement of any defective parts (labor included). To obtain warranty service, immediately notify the dealer from which you purchased the product of any defects.
Important: The above warranty shall be void if the customer fails to operate the product in accordance with BENQ’s written instructions. This warranty gives you specific
legal rights, and you may have other rights which vary from country to country.
For other information, please refer to BenQ Warranty Information Book.
consumable items and are war-
Warranty46
Page 53
Regulation Statements
FCC Statement
CLASS B: This equipment generates, uses and can radiate radio frequency energy and,
if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will
not occur in a particular installation. If this equipment does cause harmful interference
to radio or television reception, which can be determined by turning the equipment off
and on, the user is encouraged to try to correct the interference by one or more of the
following measures:
—Reorient or relocate the receiving antenna.
—Increase the distance between the equipment and receiver.
—Connect the equipment into an outlet on a circuit different from that to which
the receiver is connected.
—Consult the dealer or an experienced radio/TV technician for help.
EEC Statement
This machine was tested against the 89/336/EEC (European Economic Community)
for EMC (Electric Magnetic Compatibility) and fulfills these requirements.
MIC Statement
B class equipment (Household purpose info/telecommunications equipment)
As this equipment has undergone EMC registration for household purpose, this product can
be used in any area including residential area.
Regulation Statements47
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