BenQ FP751 User manual

Benq FP751
LCD Color Monitor
17.0" (43.18cm) LCD Panel Size
User's Manual

Benq LCD Color Monitor User's Guide
English 1
Copyright © 2002 by Banq Corporation (formerly Acer Communications & Multimedia Inc.). 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 Benq Corporation.
Banq 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, Banq Corporation reserves the right to revise this publication
and to make changes from time to time in the contents hereof without obligation of Banq Corpo-
ration to notify any person of such revision or changes.
1. The AC adapter isolates this equipment from the AC supply.
2. Unplug this product from the wall outlet before cleaning. Do not use liquid or aerosol clean-
ers. Use a soft cloth to clean the monitor housing and a tape to stick dust and fingerprints on
the screen panel.
3. Slots and openings on the back or top of the cabinet are provided for ventilation. They must
not be blocked or covered. This product should never be placed near or over a radiator or
heat register, or in a built-in installation unless proper ventilation is provided.
4. This product should be operated from the type of power indicated on the marking label. If
you are not sure of the type of power available, consult your dealer or local power company.
5. Never push objects of any kind, or spill liquid of any kind into this product.
6. Do not attempt to service this product yourself, as opening or removing covers may expose
you to dangerous voltages or other risks. If any above mentioned misuse or other accident
(dropping, mis-operations) occurs, contact qualified service personnel for servicing.
7. The power supply cord serves as a power disconnect device for pluggable equipment. The
socket outlet shall be installed near the equipment and shall be easily accessible.
Disclaimer
Safety
Instructions
Copyright

Benq LCD Color Monitor User's Guide
English 2
Unpacking ............................................................................................................ 3
Views of the Monitor .......................................................................................... 4
Front View ....................................................................................................................................................... 4
Back View (1) ..................................................................................................................................................4
Back View (2): Removal of rear cover and base cover .........................................................................5
Installation ........................................................................................................... 6
Hardware Installation ....................................................................................................................................6
Monitor Security Lock Installation ............................................................................................................. 8
USB Installation (Optional) ..........................................................................................................................8
Software Installation ...................................................................................................................................... 9
Adjusting the Monitor ...................................................................................... 35
Look at the Control Panel .........................................................................................................................35
Hot Key Mode ..............................................................................................................................................35
Main Menu Mode ..........................................................................................................................................36
Troubleshooting ................................................................................................ 41
Frequently Asked Questions (FAQ) ........................................................................................................41
Pixel errors ....................................................................................................................................................42
Need More Help? .........................................................................................................................................42
Supported operating modes ...................................................43
Specifications ..................................................................................................... 44
Appendix: An Introduction to LCD Technology ........................................... 45
Principles of LCD Technology ...................................................................................................................45
The TFT panel ...............................................................................................................................................45
Important LCD parameters .......................................................................................................................46
Display errors ................................................................................................................................................47
Comparison of CRT & LCD monitors ....................................................................................................48
Summary ......................................................................................................................................................... 48
Table
of
Contents

Benq LCD Color Monitor User's Guide
English 3
Unpacking
Please check you have the following items. If they are missing or are damaged, please contact the
dealer immediately at which you purchased the good.
LCD monitor
Quick Start Guide
CD-ROM
Power cord
Power Adaptor

Benq LCD Color Monitor User's Guide
English 4
Views of the Monitor
Front View
Back View (1)

Benq LCD Color Monitor User's Guide
English 5
Back View (2): Removal of rear cover and base cover
1. Power outlet 2. Audio jack
3. Video Cable 4. Kensington lock

Benq LCD Color Monitor User's Guide
English 6
Installation
Hardware Installation
A. Make sure that the computer and monitor’s power are both turned off. Please follow
the steps to install your LCD monitor.
1. Lay the monitor on the desk. Take off the rear cover.
2. Then take off the base cover.
3. Connect the power cord to your LCD monitor. then connect audio cable to the Audio
Input of Benq LCD monitor.

Benq LCD Color Monitor User's Guide
English 7
4. Put base cover back.
5. Put the rear cover back.
B. Connect the audio cable to your computer.
C. Connect the signal cable, which is directly attached to the monitor, to the VGA output
of the graphics card on the computer.
D. Connect the power cord at the back of the monitor to an AC power socket. Please
make sure that the socket is not blocked or covered, so you can disconnect the unit from
AC supply if you need to. Your monitor is equipped with an automatic power supply for a
voltage range from 100 to 240 Volt at a frequency of 50 to 60 Hz. Be sure that your local
power is within the supported range. If you are unsure, ask your electricity supplier.

Benq LCD Color Monitor User's Guide
English 8
Monitor Security Lock Installation
The monitor can be secured to your desk or any other fixed object with Kensington lock security
product. The cable can be attached to a slot located on the rear of your monitor.
The Kensington lock is not Benq Accessory. It cannot be ordered from Benq. Contact your reseller for more
information.
USB Installation (Optional)
A USB-Hub is integrated in the base of your monitor pedestal. USB connectors automate periph-
eral connection by using plug&paly installation procedures.
1. Insert the lock in the slot located on the
rear of the monitor.
2. Turn the key to lock the Security Lock.
3. Remove the key and store it in a safe
place.
1. Connect your USB Hub to your computer
with USB cable.
2. Connect USB compatible devices such as
a keyboard, mouse and so on to any of 2
downstream connectors.

Benq LCD Color Monitor User's Guide
English 35
Adjusting the Monitor
Look at the Control Panel
There are 4 keys & one wheel for user’s control including "Power", “iKey”, “Exit”, “Enter” and a
wheel.The following descriptions are the introduction of these keys & fly wheel.
1. "Power": Turn the power on or off.
2. “iKey” : Adjust vertical position, phase, horizontal position and pixel clock automatically.
3. “Exit” key: Back to main menus, save menu or exist OSD menu without saving. Hot key for
Audio volume adjustment.
4. “Enter” key: Enter sub-menus, select items or save items.
5. “Wheel”: For left / right adjustment. Hot key for Brightness/Contrast adjustment.
Hot Key Mode
Contrast hot-key
Brightness hot-key
1. Roll the fly wheel left to enter the Con-
trast hot-key mode.
2. Roll the fly wheel to make adjustment.
The scale can be adjusted from maxi-
mum (100) to minimum (0).
3. Press the "Exit" to save and leave OSD
operation.
1. Roll the fly wheel right to enter the
Brightness hot-key mode.
2. Roll the fly wheel to make adjustment.
The scale can be adjust from maximum
(100) to minimum (0).
3. Press the "Exit" to save and leave OSD
operation.

Benq LCD Color Monitor User's Guide
English 36
Speaker Volume hot-key
Main Menu Mode
Control Functions Available in Main Menu
Press “Enter” to enter adjustment menu. Use fly wheel to adjust brightness and then
press “Exit” to return to main menu. Or you can roll the fly wheel right to find this function.
Press “Enter” to enter adjustment menu. Use fly wheel to adjust contrast ratio and then
press “Exit” to return to main menu. Or you can roll the fly wheel left to find this function.
1. Press "Enter" to enter Speaker Volume
hot-key mode.
2. Roll the fly wheel to make adjustment.
The scale can be adjust from maximum
(100) to minimum (0).
3. Press the “Exit” to save and leave OSD
operation.
1. Brightness
2. Contrast

Benq LCD Color Monitor User's Guide
English 37
Press “Enter” to enter adjustment menu. Use fly wheel to adjust horizontal display posi-
tion and then press “Exit” to return to main menu.
Press “Enter” to enter adjustment menu. Use fly wheel to adjust vertical display position
and then press “Exit” to return to main menu.
Press “Enter” to enter adjustment menu. Use fly wheel to adjust phase and then press
“Exit” to return to main menu.
3. Horizontal Position
4. Vertical Position
5. Phase

Benq LCD Color Monitor User's Guide
English 38
Press “Enter” to enter adjustment menu. Use fly wheel to adjust pixel clock and then press “Exit”
to return to main menu.
Press “Enter” to enter selection menu. Use fly wheel to choose color temperature or
enter user define sub menu to adjust RGB. Press “Exit” to return to main menu.
Press “Enter” to enter selection menu. Use fly wheel to select a language and then press “Exit” to
return to main menu.
De: Deutsch En: English Es: Español Fr: Français It: Italiano Ja: Japanese
6. Clock
7. Color
8. Languages

Benq LCD Color Monitor User's Guide
English 39
Press “Enter” to enter confirmation menu. Use fly wheel to make decision and then press “Exit” to
return to main menu.
Press “Enter” to enter adjustment menu. Use fly wheel to adjust time of OSD operation and then
press “Exit” to return to main menu.
Press “Enter” to enter adjustment menu. Use fly wheel to adjust volume of speaker and then press
“Exit” to return to main menu.
9. Recall
10. OSD Time
11. Volume

Benq LCD Color Monitor User's Guide
English 40
Press “Enter” to enter adjustment menu. Use fly wheel to select horizontal or vertical
adjustment then press “Enter” to make adjustment. Use fly wheel to adjust horizontal or
vertical display position and then press “Exit” twice to return to main menu.
Press “Enter” to show display information (resolution, horizontal frequency and vertical
frequency). Press “Exit” to return to main menu.
12. OSD Position
13. Information

Benq LCD Color Monitor User's Guide
English 41
Troubleshooting
Frequently Asked Questions (FAQ)
✓ The image is blurred:
☞ Read the chapter, Installation/Adjustment and then select the correct resolution, refresh
rate and make adjustments based on these instructions.
☞ Do you use a VGA extension cable?
Remove the extension cable for the test. Is the image now in focus? If not, optimize the
image working on the description in the chapter, Installation/Adjustment. It is normal for
blurring to occur due to conduction losses in extension cables. You can minimize these
losses by using an extension cable with better conduction quality or with a built-in
booster.
☞ Does the blurring only occur at resolutions lower than the native (maximum) resolution?
Read the chapter Installation/Adjustment. Select the native resolution.
✓ Pixel errors can be seen:
☞ One of several pixels are permanently black, one or more pixels are permanently white,
one or more pixels are permanently red, green, blue or another colour.
Read the chapter Pixel error rates.
✓ The image has a faulty colour appearance:
☞ It has a yellow, blue or pink appearance.
On the monitor press the "Enter" button and using the Fly-wheel move to the "colour
settings" menu. Select the "Recall" item and press "Enter". If the image is still not correct
and the OSD also has a fault colour appearance, then one of the three primary colours is
missing in the signal input. Now check the VGA cable contacts. If any pins are bent or bro-
ken off, then contact your dealer or read the chapter, Additional Help, Repairs & Service.
✓ No image can be seen:
☞ Is the prompt on the display illuminated in green?
If the LED is illuminated in green, then press the "Exit" button on the monitor to access
the On Screen Display. If the message "Not supported Mode" appears there, read the
chapter Installation/Adjustment.
☞ Is the prompt on the display illuminated in orange?
If the LED is illuminated in orange, then the power management mode is active. Press a
button on the computer keyboard or move the mouse. If that does not help, then check
the VGA cable contacts. If any pins are bent or broken off, then contact your dealer or
read the chapter, Additional Help, Repairs & Service.
☞ Is the prompt on the display not illuminated at all?
Check the power supply mains socket, the external power supply and the mains switch.

Benq LCD Color Monitor User's Guide
English 42
✓ The image is or distorted, flashes or flickers:
☞ Read the chapter, Installation/Adjustment and then select the correct resolution, refresh
rate and make adjustments based on these instructions.
✓ The image is displaced in one direction:
☞ Read the chapter, Installation/Adjustment and then select the correct resolution, refresh
rate and make adjustments based on these instructions.
Pixel errors
Due to the technology used to build LCD-modules, pixel errors are unavoidable. A standard 1024
x 768 display has 786,432 pixels. Each pixel consists of three subpixels (red, green and blue), which
means there are 2,359,296 subpixels. This is also the number of driver transistors needed. If you
wanted to make sure that every transistor on an LC display is working properly, i.e. that there are
no pixel failures, an enormous amount of waste would be produced and the price would also be
exorbitant. Error rates have to be specified in order to produce LCD panels for a fair price. These
error rates are given to us by the panel manufacturers.
Need More Help?
If your problems remain after checking this manual, please contact your place of purchase or e-mail
us at: [email protected]

Benq LCD Color Monitor User's Guide
English 43
Supported operating modes
hModes, which are not listed in the above table, may not be supported. For an optimal picture
it is recommended to choose a mode listed in the table.
hYou have 22 available modes compatible with Windows.
hIt can happen that the image is disrupted. This can occur as a result of a signal frequency from
the VGA card, which does not correspond with the usual standard. This is not, however, an
error. You can improve this situation by altering an automatic setting or by manually changing
the phase setting and the pixel frequency from the "Geometry" menu.
hIf you switch off the monitor, interference lines can occur on your screen. But do not be con-
cerned about this, as it is normal.
hTo extend the service life of the product, we recommend that you use your computer's
power management function.
Incoming display mode(Input timing) Multi-scan
operation
Resolution Horizontal
Frequency
(KHz)
Vertical
Frequency
(Hz)
Dot Clock
Frequency
(MHz)
Remark Actual display
resolution
640x350 31.47(P) 70.08(N) 25.17 DOS 1280X943
*720x400 31.47(N) 70.08(P) 28.32 DOS
1280X1024
full screen
640x480 31.47(N) 60.00(N) 25.18 DOS
640x480 35.00(N) 67.00(N) 30.24 Macintosh
640x480 37.86(N) 72.80(N) 31.5 VESA
640x480 37.50(N) 75.00(N) 31.5 VESA
800x600 37.88(P) 60.32(P) 40.00 VESA
800x600 48.08(P) 72.19(P) 50.00 VESA
*800x600 46.86(P) 75.00(P) 49.50 VESA
832X624 49.72(N) 74.55(N) 57.29 Macintosh
*1024x768 48.36(N) 60.00(N) 65.00 VESA
1024x768 56.48(N) 70.10(N) 75.00 VESA
*1024x768 60.02(P) 75.00(P) 78.75 VESA
1024X768 60.24(N) 74.93(N) 80.00 Macintosh
1152x864 67.50(P) 75.00(P) 108.00 VESA
*1152x870 68.68(N) 75.06(N) 100.00 Macintoch
1152x900 61.80(N) 66.00(N) 92.94 SUN 66
*1152x900 71.81(N) 76.14(N) 108.00 SUN
1280x1024 64.00(P) 60.00(P) 108.00 VESA
1280x1024 75.83(N) 71.53(N) 128.00 IBM1
*1280x1024 80.00(P) 75.00(P) 135.00 VESA
*1280x1024 81.18(N) 76.16(N) 135.09 SPARC2

Benq LCD Color Monitor User's Guide
English 44
Specifications
Model FP751
Display type
Viewable diagonal
Native (maximum) resolution
Colors
Contrast / Brightness
Response time
Viewing angle (left/right, up/down)
Dot Pitch
17.0“, active, TFT
43.18 cm
1280 x 1024
16.7 million
400:1 / 250 cd/m²
45 ms
60/60,45/70
0.264 mm
Line frequency
Image frequency
31.47 - 60.24 kHz Multi- frequency monitor
56.25 - 75.0 Hz modes within these parameters
Image checks
Controls
iScreen functions
Digital, Screen OSD Technology, iKey (automatic image
setting)
mains switch, 2 buttons, one fly-wheel OSD, iKey.
Contrast, brightness, vert. & hor. image position,
phase, pixel clock, color balance, color palette, choice
of language (6 language OSD), OSD position, status
indicator
Power Management
max. power consumption
Power saving mode
VESA DPMS, EPA
50 Watt Max
< 3 Watt
Input signal
Synchronisation
Signal connection
RGB analog 0.7 Vpp/75 Ohm positive
TTL separate
15-pin mini D-sub cable
Temperature (operating)
Air humidity (operating)
5 °C - 40 °C
20% - 85%
Certifications TCO 99 (Optional), TÜV/Ergonomics, CSA, TÜV/GS,
IEC950, FCC Class B, DSNF, ISO 13406-2, VCCI, UL,
CB Report, CE, C-Tick, BSMI
Operating voltage
Dimensions (W x H x D)
Weight
Automatic switched mode power supply, 90-264 V,
47-63Hz
422 x 451 x 207.97 mm
6.8 kg

Benq LCD Color Monitor User's Guide
English 45
Appendix: An Introduction to LCD Technology
Principles of LCD Technology
The functionality of LCD (Liquid Crystal Display) screens is based on the special physical proper-
ties of liquid crystals. Their rod shaped molecules arrange themselves similarly to the molecules of
crystals - always uniformly and in one particular direction. Yet liquid crystals are not set in this ori-
entation, but behave like a liquid: They can be manipulated by applying an electric voltage. The lay-
ers of the liquid crystal molecules can therefore be longitudinal or diagonal to the polarising
direction of the light and thereby have a varying effect on the course of light waves.
LIQUID CRYSTALS POLARISE INCIDENT LIGHT
An LC display consists of two polarising filters, a control layer, the respective colour filters and the
liquid crystal layer.
The light from a background lamp hits an initial polarisation membrane so that only a specific plane
of polarisation of the light reaches the liquid crystal layer. Without any external electrical influence
the liquid crystal molecules arrange themselves in a screw-like shape between the two vertically
aligned polarising filters and the directional structure imposed as a result. The light follows this ori-
entation and is rotated by 90 degrees. The second polarising filter only allows through light with
this rotated polarisation. The light valve is open - as a result the controlled pixel lights up.
If an electrical voltage is applied, the liquid crystal molecules orientate themselves along the field
lines. The 90' screw is lifted up, the LC molecules appear parallel to the incident light and allow it
to pass through without altering the polarising direction. The unrotated light hits the second,
rotated polarising filter and is blocked. As a result the corresponding pixel remains dark. The inten-
sity of the departing, visible light can be controlled by means of the voltage applied to the crystal
layer and the polarised light rotated to a greater or lesser extent as a result.
The TFT panel
A. The standard TFT panel
With TFT displays, also called active matrix, the light transmitting capacity of each pixel is in
each case controlled by a transistor. The pixels can therefore be operated individually and
addressed very quickly, which in turn guarantees perfect display even of moving images. With
high-resolution LCDs well over two million pixels (three colour dots for the primary colours
red, green and blue per pixel) have to be controlled. The voltage is continuously on so that the
image does not have to be rebuilt constantly. The great advantage of this is that LC displays do
not flicker, even when they are controlled at low refresh frequencies (e.g. at 60 Hz). Because
faulty transistors can occur during production, pixel errors resulting from this are unavoidable.
B. The super TFT panel
The super TFT panel works according to the same physical principle. A significantly increased
viewing angle can be created through more precise production and through slightly brighter
pixels. This, however, is partly at the expense of the gray level resolution.