LG 915FT User manual

Introduction
Installation
Operation
Technical Information
Table of Contents
Introduction
Important Precautions
Connecting the Monitor
Making use of USB (Universal Serial Bus)
Location and Function of Controls
Control Panel Function
On Screen Display (OSD) Control Adjustment
On Screen Display(OSD) Selection and Adjustment
Energy Saving Design
Low Radiation Compliance (MPR II) and DDC (Display Data Channel)
Video Memory Modes
Troubleshooting
Service
Specifications
A1
A10
A7
A4
A2
A11
A13
A12
A17
A19
A20
A21
A22
A18
ENGLISH
i

Introduction
Features
Introduction
Thank you for purchasing a high resolution monitor. It will give you
high resolution performance and convenient reliable operation in a
variety of video operating modes.
The monitor is a 19 inches (18.0 inches viewable ) intelligent,
microprocessor based monitor compatible with most analog RGB (Red,
Green, Blue) display standards, including IBM PC®, PS/2®, Apple®,
Macintosh®, Centris®, Quadra®, and Macintosh II family.
USB (Universal Serial Bus) ports at the back of the monitor are prepared
for the USB cable and hub. You can easily and flexibly connect USB-
designed devices-such as a mouse, keyboard or printer- to the monitor
for true Plug and Play function.
The monitor provides crisp text and vivid color graphics with VGA,
SVGA, XGA, and VESA Ergonomic modes (non-interlaced), and most
Macintosh compatible color video cards when used with the appropriate
adaptor. The monitor's wide compatibility makes it possible to upgrade
video cards or software without purchasing a new monitor.
Digitally controlled auto-scanning is done with the micro-processor for
horizontal scan frequencies between 30 and 107kHz, and vertical scan
frequencies between 50-200Hz. The microprocessor-based intelligence
allows the monitor to operate in each frequency mode with the
precision of a fixed frequency monitor.
We accomplished to adapt the advanced design and technology to the
monitor. Soft touch buttons on the front panel are simple and allow you
to conveniently adjust a variety of image controls. The absolute flat
screen and screen surface treatment eliminate distracting glares.
This monitor is capable of producing a maximum horizontal resolution of
1600 dots and a maximum vertical resolution of 1200 lines. It is well
suited for CAD work and sophisticated windowing environments.
For low cost of monitor operation, this monitor is certified as meeting
the EPA Energy Star requirements, and utilizes the VESA Display Power
Management Signalling (DPMS) protocol for power saving during non-
use periods.
A1

Introduction
On Safety
Important Precautions
This unit has been engineered and manufactured to assure your
personal safety, but improper use can result in potential electrical
shock or fire hazard. In order not to defeat the safeguards
incorporated in this monitor, observe the following basic rules for its
installation, use, and servicing. Also follow all warnings and
instructions marked directly on your monitor.
Use only the power cord supplied with the unit. In case you use another
power cord, make sure that it is certified by the applicable national
standards if not being provided by the supplier. If the power cable is
faulty in any way, please contact the manufacturer or the nearest
authorized repair service provider for a replacement.
Operate the monitor only from a power source indicated in the
specifications of this manual or listed on the monitor. If you are not sure
what type of power supply you have in your home, consult with your dealer.
Overloaded AC outlets and extension cords are dangerous. So are frayed
power cords and broken plugs. They may result in a shock or fire hazard.
Call your service technician for replacement.
Do not Open the Monitor
There are no user serviceable components inside.
There are Dangerous High Voltages inside, even when the power is
OFF.
Contact your dealer if the monitor is not operating properly.
To Avoid Personal Injury :
Do not place the monitor on a sloping shelf unless properly secured.
Use only a stand recommended by the manufacturer.
Do not try to roll a stand with small casters across thresholds or deep
pile carpets.
To Prevent Fire or Hazards:
Always turn the monitor OFF if you leave the room for more than a
short period of time. Never leave the monitor ON when leaving the
house.
Keep children from dropping or pushing objects into the monitor's
cabinet openings. Some internal parts carry hazardous voltages.
A2

Introduction
On Installation
On Cleaning
On Repacking
Important Precautions
Do not add accessories that have not been designed for this monitor.
During a lightning storm or when the monitor is to be left unattended
for an extended period of time, unplug it from the wall outlet.
Do not bring magnetic devices such as magnets or motors near the
picture tube.
Do not allow anything to rest upon or roll over the power cord, and do not
place the monitor where the power cord is subject to damage.
Do not use this monitor near water such as near a bathtub, washbowl,
kitchen sink, laundry tub, in a wet basement, or near a swimming pool.
Monitors are provided with ventilation openings in the cabinet to allow the
release of heat generated during operation. If these openings are blocked,
built-up heat can cause failures which may result in a fire hazard.
Therefore, NEVER:
Block the bottom ventilation slots by placing the monitor on a bed,
sofa, rug, etc.
Place the monitor in a built-in enclosure unless proper ventilation is
provided.
Cover the openings with cloth or other material.
Place the monitor near or over a radiator or heat source.
Unplug the monitor before cleaning the face of the picture tube.
Use a slightly damp (not wet) cloth. Do not use an aerosol directly on
the picture tube because overspray may cause electrical shock.
Do not throw away the carton and packing materials. They make an
ideal container in which to transport the unit. When shipping the unit
to another location, repack it in its original material.
A3

Installation
Connection to any IBM
VGA PC compatible
system
Connecting the Monitor
Figure 1 shows the signal cable connections from the monitor to the
Video Graphics Array (VGA) port typical in an IBM PC or PC
compatible. This also applies to any graphics video card for PC-CAD
or workstation that has a 15 pin high density (3 row) d-Sub connector.
1. Power off both the monitor and PC.
2. Connect the 15 pin VGA connector of the supplied signal cable to the
output VGA video connector on the PC and the matching input
connector on the rear of the monitor. The connectors will mate only
one way. If you cannot attach the cable easily, turn the connector
upside down and try again. When mated, tighten the thumbscrews to
secure the connection.
3. Power ON the PC, then the monitor.
4. If you see the NO SIGNAL message, check the signal cable and
connectors.
5. After using the system, power OFF the monitor, then the PC.
Figure 1.
Power Cord
Signal Cable
D-15P
A4

Installation
Connecting to an Apple
Macintosh PC
Connecting the Monitor
Figure 2 shows the connection to an Apple Macintosh, using a
separately purchased adapter.
1. Power OFF both the monitor and the PC.
2. Locate the appropriate MAC to VGA adapter block at your local
computer store. This adapter changes the high density 3 row 15 pin
VGA connector to the correct 15 pin 2 row connection to mate with
your MAC. Attach the other end of the signal cable to the side of the
adapter block with 3 rows.
3. Connect the attached adapter block/signal cable to the video output on
your MAC.
4. Power ON the PC, then the monitor.
5. If you see the NO SIGNAL message, check the signal cable and
connectors.
6. After using the system, power OFF the monitor, then the PC.
Figure 2.
MAC6MAC6
Power Cord Signal Cable
D-15P
Adapter 15P
A5

Installation
The Other Types of Video
Cards with BNC
Connectors
* HD : Horizontal Drive
VD : Vertical Drive
COMP : Composite
Connecting the Monitor
Notes on using the BNC connectors with other types of video cards.
Follow the example that fits your needs.
1. In case of composite sync on green video signal(Sync On Green):
Connect R,G and B video signals to BNC receptacles on the back of
the monitor, respectively.
2. In case of external composite sync signal:
Connect R, G and B video signals and Composite sync signal to BNC
receptacles on rear panel, respectively.
3. In case of separate horizontal and vertical sync signals:
Connect R, G and B video signals and horizontal and vertical sync
signals to BNC receptacles on rear panel respectively.
NOTE
This package does not have BNC
Connectors but you can purchase it at
your local computer store.
This monitor will not support the DDC
function, if you are using the 5 BNC
connectors with other types of video
cards.
R
G
B
VD COMP.
HD D-SUB
R
G
B
VD COMP.
HD D-SUB
BGR
VD COMP.
HD
Blue
Green Red
Blue
Gray Green Red
BlueGray
Black Green Red
A6

Installation
USB connection
Making use of USB (Universal Serial Bus)
USB (Universal Serial Bus) is an innovation in connecting your different
desktop peripherals conveniently to your computer. By using the USB,
you will be able to connect your mouse, keyboard, printer, and other
peripherals to your monitor instead of having to connect them to your
computer. This will give you greater flexibility in setting up your system.
USB allows you to connect chain up to 120 devices on a single USB port,
and you can “hot” plug (attach them while the computer is running) or
unplug them while maintaining Plug and Plug auto detection and
configuration. This monitor has an integrated self-powered USB hub,
allowing up to 4 other USB devices to be attached it.
1. Connect the upstream port of the monitor to the downstream port of
the USB compliant PC or another hub using the USB cable (Computer
must have a USB port).
2. Connect the USB compliant peripherals to the downstream ports of
the monitor.
USB Upstream connector USB Downstream connector
USB upstream Port
USB downstream Ports
connect the cables from USB
compliant peripherals-such as
keyboard, mouse, printer,
scanner, etc
To USB downstream port of
the USB compliant PC or
another hub cable
keyboard
printer
mouse
etc.
A7

Installation
USB specifications
Making use of USB (Universal Serial Bus)
Example of connection
keyboard
printer
scanner
monitor
computer
mouse
USB standard
Downstream power supply
Communication speed
USB port
Rev. 1.0 complied self-powered hub
500mA for each (MAX)
12 Mbps (full), 1.5 Mbps (low)
1 Upstream port
4 Downstream ports
NOTE
To activate the USB hub function, the monitor must be connected to a USB
compliant PC(OS) or another hub with the USB cable(enclosed).
When connecting the USB cable, check that the shape of the connector at the
cable side matches the shape at the connecting side.
When the monitor is not plugged into an electric socket, the peripherals
connected to the downstream ports will not operate.
Even if the monitor is in a power saving mode, USB compliant devices will
function when they are connected the USB ports(both the upstream and
downstream) of the monitor.
A8

Installation
USB-Monitor Software
function
Making use of USB (Universal Serial Bus)
As an added advantage, the monitor can be controlled from a
computer with a mouse or keyboard. Making adjustments to the
image size, position, screen color and operating parameters of the
monitor is easy with the USB-Monitor software (please refer to the
supplied CD).
To access the USB-Monitor software
function:
1. Click the right button of the mouse,
then select the Properties.
The Display Properties windows
appears, as shown in the figure.
2. Click the USB-Monitor.
You can select and adjust the Control
Options (General, Color and
Advanced).
3. When you are finished the making
changes, click the Save.
To reset the image without applying
changes, click the Default.
Degauss removes magnetic field
buildup that can be affect color purity
and convergence.
4. To close the window, click OK.
NOTE
USB-Monitor software function is supported Windows 98 and higher.
Properties
Display Properties
A9

Operation
Front View
Rear View
Location and Function of Controls
ID Label
BNC Signal Connectors
USB upstream port
USB downstream ports
D-Sub Signal Connector
AC Power Socket
Power Button
SET Button
Power Indicator
OSD Button
Buttons
INPUT Button
A10

Operation
Front Panel Controls
Control Panel Function
Use this button to
enter or exit the
on screen display.
OSD Button
Use this button to
enter a selection
in the on screen
display.
SET Button
Use these buttons
to choose or adjust
items in the on
screen display.
Buttons
BNC/DSUB selection button ; Use
this button to make BNC or DSUB
connector active. This feature is
used when two computers are
connected to the monitor. This
function is available in the On
Screen Display (OSD) menu. The
default setting is DSUB.
INPUT Button
Use this button
to turn the
monitor on or
off.
Power Button
The power indicator light is shown in
the power button. This indicator lights
up green when the monitor operates
normally. If the monitor is in DPM
(Energy Saving) mode (stand-by/
suspend/ off), this indicator color
changes to amber.
Power Indicator
OSD SET
INPUT
<Shortcut Keys>
• Brightness and Contrast can be
adjusted directly without entering the
On Screen Display (OSD) system.
Touch the buttons to
adjust the settings and then the OSD
button to save all changes. The
Brightness and Contrast functions are
also available in the On Screen
Display (OSD) menu.
100
100
A11

Operation
On Screen Display (OSD) Control Adjustment
Making adjustments to the image size, position and operating
parameters of the monitor are quick and easy with the On Screen
Display Control system. A quick example is given below to familiarize
you with the use of the controls. Following section is an outline of the
available adjustments and selections you can make using the OSD.
To make adjustments in the On Screen Display, follow these steps:
Touch the OSD Button, then the main menu of the OSD appears.
To acces a control, use the or Buttons. When the icon you
want becomes highlighted, touch the SET Button.
Use the Buttons to adjust the item to the desired level.
Accept the changes by touching the SET Button.
Exit the OSD by touching the OSD Button.
OSD SET
INPUT
INPUT
SET
OSD
NOTE
Allow the monitor to stabilize for at least 30 minutes before making image
adjustment.
1
1
2
3
4
5
6
7
1
2
2
3
4
5
6
7
1
2
3
3
4
5
6
7
1
2
3
4
4
5
6
7
1
2
3
4
5
5
6
7
A12

Operation
On Screen Display(OSD) Selection and
Adjustment
You were introduced to the procedure of selection and adjusting an
item using the OSD system.
Listed below are the icons, icon names, and icon descriptions of the
items that are shown on the Menu.
OSD Adjust Description
BRIGHTNESS CONTRAST
66
92
COLOR
PRESET
TEMP
RED
GREEN
BLUE
6500K 9300K
POSITION
66
45
Brightness
Used to adjust the brightness
of the screen.
Contrast
Adjust the display to the
contrast desired.
PRESET
TEMP
RED
GREEN
BLUE
6500K/ 9300K
To appear the displays color
temperature.
•6500K:Slightly reddish white.
•9300K:Slightly bluish white.
User easily color set without
adjustment Red, Green and
Blue (R/G/B).
To set your own color levels.
To set your own color levels.
To set your own color levels.
Vertical Position
To move image up and down.
Horizontal Position
To move picture image left and
right.
OSD SET
INPUT
INPUT
SET
OSD
BRIGHTNESS/CONTRAST
COLOR
POSITION
A13

Operation
On Screen Display(OSD) Selection and
Adjustment
OSD Adjust Description
SIZE
49
64
SHAPE
Vertical Size
To adjust image height.
Horizontal Size
To adjust image width.
Side Pincushion
To correct the bowing in and out
of the image.
Side pincushion balance
To correct the balance of both
sides bowing.
Trapezoid
To correct geometric distortion.
Parallelogram
This control adjusts for a
skewing of the screen image.
Tilt
To correct image rotation.
Top Corner
To correct the irregular distortion
of the displayed image.
Bottom Corner
To correct the irregular distortion
of the displayed image.
SIZE
SHAPE
OSD SET
INPUT
INPUT
SET
OSD
A14

On Screen Display(OSD) Selection and
Adjustment
OSD SET
INPUT
INPUT
SET
OSD
Technical Information
OSD Adjust Description
VIDEO LEVEL 0.7V
LANGUAGE ENGLISH
BEEP ON
INPUT SELECT DSUB
CLAMP SEP
OSD POSITION
SETUP
This item is used to select the
monitor's input signal level. The
normal level used for most PC's
is 0.7V.
When the screen suddenly gets
brightened or blurry, please
select 1.0V and try again.
To choose the language in which
the control names are displayed.
OSD Menus are available in 8
language: English, Deutsch,
Français, Español, Italiano,
Svenska, Suomi and Português.
To adjust position of the OSD
window on the screen.
To select D-sub or 5 BNC.
In case of input SOG(Sync On
Green) Video Signal, the back
raster will appear the green.
Then, to select the SOG(Sync
On Green) in the clamp, will take
you back to the original back
raster.
To select beep ON or OFF.
VIDEO LEVEL
LANGUAGE
OSD POSITION
INPUT
SELECT
CLAMP
BEEP
SETUP
A15

Operation
On Screen Display(OSD) Selection and
Adjustment
OSD Adjust Description
To manually demagnetize the
screen which may show some
image or color incorrectly.
SPECIAL
DEGAUSS ON
RECALL ON
MOIRE H: 0/V: 0
CONVERGENCE H:50/V:50
PURITY :50
54.4kHz/60.0Hz
USER MODE
DEGAUSS
If the monitor is operating in a
factory preset mode, this control
will reset the image to the
factory preset mode.
RECALL
This item allows you to reduce
the moire (Moire is caused by
interference Horizontal Scan
Line with the periodical dot
screen). It is normally
OFF(H:0/V:0).
The moire adjustments may
affect the focus of the screen.
The screen image may shake
slightly while the moire
reduction function is on.
MOIRE
Use to adjust the alignment of
red and blue fields.
CONVERGENCE
Use to adjust the purity on the
screen if the color appears
uneven.
(1) Adjust the purity of the upper
left corner of the screen.
(2) Adjust the purity of the upper
right corner of the screen.
(3) Adjust the purity of the lower
left corner of the screen.
(4) Adjust the purity of the lower
right corner of the screen.
PURITY
OSD SET
INPUT
INPUT
SET
OSD
SPECIAL
A16

Technical Information
Power Consumption
Energy Saving Design
This monitor complies with the EPA's Energy Star program, which is a
program designed to have manufacturers of computer equipment build
circuitry into their products to reduce power consumption during time of
non-use.
This monitor also goes into its energy saving mode if you exceed the
monitor's operating limits, such as the maximum resolution of 1600x1200
or the frequency refresh rates of 30-107kHz horizontal or 50-200Hz
vertical. When this monitor is used with a Green or EPA Energy Star PC,
or a PC with a screen blanking software following the VESA Display
Power Management Signalling (DPMS) protocol, this monitor can
conserve significant energy by reducing power consumption during
periods of non-use. When the PC goes into the energy saving mode, the
monitor will go into a suspended operation state, indicated by the Power
LED light changing from a green color to an amber color. After an
extended period in the suspended mode, the monitor will then enter a
semi-OFF mode to conserve more energy. In the semi-OFF mode or
DPMS OFF mode as we call it in our specifications, the Power LED will
still show an amber color. When you awaken your PC by hitting a key or
moving the mouse, the monitor will also awaken to its normal operating
mode, indicated by the green Power LED light. By following these
conventions, the power consumption can be reduced to the following
levels:
Mode
Normal(Max.)
Stand-by
Suspend
Off
Hori.
Sync
On
Off
On
Off
Verti.
Sync
On
On
Off
Off
Video
Normal
Off
Off
Off
Power
Consumption
≤140W
≤8W
≤8W
≤3W
LED Color
Green
Amber
Amber
Amber
A17

Technical Information
Low Radiation Compliance
(MPR II)
DDC (Display Data
Channel)
Low Radiation Compliance (MPR II) and
DDC (Display Data Channel)
This monitor meets one of the strictest guidelines available today for low
radiation emissions, offering the user extra shielding and an antistatic
screen coating. These guidelines, set forth by a government agency in
Sweden, limit the amount of emission allowed in the Extremely Low
Frequency (ELF) and Very Low Frequency (VLF) electromagnetic range.
DDC is a communication channel over which the monitor automatically
informs the host system (PC) about its capabilities. This monitor has two
DDC function; DDC1 and DDC2B. DDC1 and DDC2B carry out uni-
directional communication between the PC and the monitor. Under these
situations, the PC sends display data to the monitor but not commands to
control the monitor settings.
NOTE
PC must support DDC functions to do this.
If your monitor is displaying a mono chrome image or the wrong resolution,
select the DDC OFF function.
A18

Display Modes (Resolution)
User Modes
Recalling Display Modes
Technical Information
Video Memory Modes
The monitor has 38 memory locations for display modes, 12 of which
are factory preset to popular video modes.
Modes 13-38 are empty and can accept new video data. If the monitor
detects a new video mode that has not been present before or is not
one of the preset modes, it stores the new mode automatically in one
of the empty modes starting with mode 13.
If you use up the 26 blank modes and still have more new video
modes, the monitor replaces the information in the user modes starting
with mode 13.
When your monitor detects a mode it has seen before, it automatically
recalls the image settings you may have made the last time you used
that mode.
You may, however, manually force a recall of each of the 12 preset
modes by pressing the Recall button. All preset modes are
automatically recalled as the monitor senses the incoming signal.
The ability to recall the preset modes is dependent on the signal
coming from your PC’s video card or system. If this signal does not
match any of the factory modes, the monitor automatically sets itself to
display the image.
1
2
3
4
5
6
7
8
9
10
11
12
720 x 400
640 x 480
800 x 600
1024 x 768
1152 x 864
1024 x 768
1280 x 1024
1280 x 1024
1600 x 1200
1600 x 1200
832 x 624
1152 x 870
31.469
31.469
53.674
60.023
67.500
68.677
79.976
91.146
93.750
106.250
49.725
68.681
70
60
85
75
75
85
75
85
75
85
75
75
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Display Modes (Resolution) Horizontal Freq.(kHz) Vertical Freq.(Hz) Recall
VESA
VESA
VESA
VESA
VESA
VESA
VESA
VESA
VESA
VESA
APPLE
APPLE
A19