Sharp LL-T15A3 User manual

LCD Monitor
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LL-T15A3
OPERATION MANUAL
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Tips and safety precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Product description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Connecting the monitor and turning the monitor on and off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Connecting the monitor to a computer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Connecting the monitor to a power source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Turning the power on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Turning the power off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Installing set-up information and the ICC profile (for Windows) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Information about the ColorSync profile (for MacOS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Adjusting the screen display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Adjusting the backlight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Automatic screen adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Manual screen adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Monitor care and repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Monitor care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Instructions for attaching a VESA compliant arm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Table of Contents

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Tips and safety precautions
- The TFT color LCD panel used in this monitor is
made with the application of high precision
technology. However, there may be minute points
on the screen where pixels never light or are
permanently lit. Also, if the screen is viewed from
an acute angle there may be uneven colors or
brightness. Please note that these are not
malfunctions but common phenomena of LCDs
and will not affect the performance of the
monitor.
- Do not leave the screen displaying idly for long
periods of time, as this could cause afterimage to
remain.
- If the brightness is adjusted to the minimum
setting it may be difficult to see the screen.
- The quality of the computer signal may influence
the quality of the display. We recommend using a
computer able to emit high quality video signals.
- Never rub or tap the monitor with hard objects.
- Please understand that Sharp Corporation bears
no responsibility for errors made during use by
the customer or a third party, nor for any other
malfunctions or damage to this product arising
during use, except where indemnity liability is
recognized under law.
- This monitor and its accessories may be
upgraded without advance notice.
Location
- Do not use the monitor where ventilation is poor,
where there is a lot of dust, where humidity is
high, or where the monitor may come into
contact with oil or steam, as this could lead to
fire.
- Ensure that the monitor does not come into
contact with water or other fluids. Ensure that no
objects such as paper clips or pins enter the
monitor as this could lead to fire or electric
shock.
- Do not place the monitor on top of unstable
objects or in unsafe places. Do not allow the
monitor to come into contact with strong shocks
or vibrations. Causing the monitor to fall or topple
over may damage it.
- Do not use in places where the monitor will be
subject to direct sunlight, near heating equipment
or anywhere else where there is likelihood of
high temperature, as this may lead to generation
of excessive heat and outbreak of fire.
The Power Cord
- Do not damage the power cord nor place heavy
objects on it, stretch it or overly bend it. Also, do
not add extension cords. Damage to the cord
may result in fire or electric shock.
- Use only the power cord supplied with the
monitor.
- Insert the power plug directly into the AC outlet.
Adding an extension cord may lead to fire as a
result of overheating.
Monitor and accessory checklist
- Please check that the following items are
included in the package.
- LCD monitor (1)
- AC adapter (1)
(model name: NL-A53J)
- Utility Disk (For Windows/Macintosh) (1)
- Operation manual (1)
Notes:
- Use only the cables supplied with the monitor.
- You are advised to retain the carton in case the
monitor needs to be transported.
- Sharp Corporation holds authorship rights to the
Utility Disk program. Do not reproduce it without
permission.
- The shape of the supplied accessaries may not
be exactly same as shown in this booklet.
Use of AC adapter
- Do not use the AC adapter for other than the
specified equipment.
- Unplug the AC adapter if it is not used for long
time.
- Do not place any objects on the AC adapter.
- Do not use the AC adapter outdoors.
- Do not attempt to repair the AC adapter if it is
broken or malfunctioning. Refer the servicing to
the service representative.
- Do not try to open the AC adapter.
- Do not use water or wet cloth for cleaning the AC
adapter.
Manual Scope
- In this booklet, Microsoft Windows XP will be
referred to as [WindowsXP], Microsoft Windows
Millenium as [WindowsMe], Microsoft Windows
2000 as [Windows2000], Microsoft Windows 98
as [Windows98], Microsoft Windows 95 as
[Windows95], and Microsoft Windows Version 3.1
as [Windows3.1]. When there is no need to
distinguish between programs, the term
[Windows] will be used.
- Microsoft and Windows are registered
trademarks of Microsoft Corporation.
- Macintosh is a registered trademark of Apple
Computer, Inc.

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Product description
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10
1. MENU button ............................ This button is used to pop-up, select and close the OSD (On Screen
Display) Menu.
2. button ................................... This button is used to select menu options when the OSD Menu is
displayed.
3. buttons ............................. When the OSD Menu is displayed:
These buttons are used to increase or decrease the value of a
selected option.
When the OSD Menu is not displayed:
These buttons are used to adjust backlight brightness.
4. AUTO button ............................ When the OSD Menu is displayed:
This button is used to turn off the OSD Menu.
When the OSD Menu is not displayed:
This button is used to perform automatic adjustment of the screen
(CLOCK, PHASE, H-POS and V-POS).
5. Power LED ............................... This LED is lit green when in use and orange when in power-saving
mode.
6. Power button ............................ Pressing this button turns the power on. (After turning the power on, it
may take a little time before the screen displays.)
Press the button again to turn the power off.
7. Power terminal ......................... The AC adapter is connected here.
8. Analog signal cable ................. Connects to the computer’s analog RGB output terminal.
9. Security lock anchor ................ By connecting a security lock (commercially available) to the security
lock anchor, the monitor is fixed so that it cannot be transported.
The security slot works in conjunction with Kensington Micro Saver
Security Systems.
10. Ventilation openings ................ Note: Never block the ventilation openings as this may lead to
overheating inside the monitor and result in malfunction.

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Product description
Standing up and adjusting the monitor
CAUTION!
- Pressure from hands on the LCD panel could
cause damage.
- Be careful not to place any objects on the cables.
Doing so may result in disconnection or other
problems.
Standing up the monitor
Press down on the stand and lift up the top section
of the monitor.
Folding up the monitor (when packing it away)
- Except when folding away the monitor to
transport it, do not fold down the monitor.
Unnecessarily folding and unfolding the monitor
could lead to malfunction.
1.Remove the AC adapter.
2. If carrying out adjustments to the monitor, place
it upright.
3. While pressing the rear lock disable button (1),
gently fold back the monitor (2).
(2)
(1)
Angle adjustment
Lightly holding both sides of the monitor, adjust it to
a suitable viewing angle.
- Do not use the monitor when tilted back beyond
approximately 25º.The monitor may fall over
leading to injury or malfunction.
Prohibited range
approx.25°approx.3°
approx.25°
approx.3°

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Connecting the monitor and turning the monitor on and off
CAUTION!
- When connecting, ensure that both the monitor
and computer are switched off.
- Be careful not to overly bend the cable or add
extension cords as this could lead to a
malfunction.
Connecting the monitor to a computer
- Paying attention to connector direction, firmly
insert the signal cable to terminal, and then
tighten the screws at both sides.
If connecting to a D-sub 15 pin 2 row Apple Power
Macintosh, attach a Macintosh conversion adapter
(commercially available) to the analog signal cable.
Connecting the monitor to a power source
1.Connect the AC adapter to the monitor's power
terminal.
Analog RGB output terminal
(Mini D-Sub 15 pin, 3 row)
Analog signal cable
Macintosh conversion adapter
2.Attach the power cord to the AC adapter and
place the power plug into the AC outlet.
Turning the power on
1.Press the monitor's POWER button.
2.Turn on the computer.
The power LED will be lit green, and the screen
will display an image.
Notes:
- If using the monitor for the first time or after
having changed the system settings during use,
perform an automatic screen adjustment.
- Depending on the computer or OS, it may be
necessary to use the computer to install monitor
set-up information. If so, follow the steps below to
install the monitor set-up information.
Turning the power off
1. Turn the computer off.
2. Press the monitor's POWER button.
The Power LED will disappear.
If the monitor is not going to be used for a long
period of time, be sure to unplug it from the AC
outlet.
AC adapter
Power terminal
Power cord
AC outlet
Power LED Power button

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For Windows98
Installing monitor set-up information into Win-
dows98, and setting the monitor's ICC profile as a
predetermined value.
This explanation assumes that the floppy disk drive
is "A drive".
If the "Add new Hardware Wizard" has appeared:
1. Place the Utility Disk (provided) into the
computer's A drive.
2. Click [Next].
3. Check [Display a list of all the drivers in a
specific location, so you can select the driver
you want.], then click [Next].
4. When [Models] is displayed, click on [Have
disk], confirm that [Copy manufacturer's files
from:] is [A:], and click [OK].
5. Confirm that the monitor details are selected,
then click [Next], [Next], and [Finish]. If the "Add
New Hardware Wizard" appears, repeat the
installation commands beginning from 2 above.
6. Remove the Utility Disk from the A drive.
If the "Add New Hardware Wizard" has not ap-
peared:
1. Place the Utility Disk in the computer's A drive.
2. Click on the [Start] button. From [Settings],
choose [Control Panel].
3. Double click on [Display].
4. Click on [Settings], [Advanced] and [Monitor].
5. In [Options], check [Automatically detect Plug &
Play monitors] and click on [Change].
6. Click [Next].
7. Click on [Display a list of all the drivers in a
specific location, so you can select the driver
you want.], then click [Next].
8. When [Models] is displayed, click on [Have
disk], confirm that [Copy manufacturer's files
from:] is [A:], and click [OK].
9. Confirm that the monitor details are selected,
then click [Next], [Next], and [Finish].
10. Check that the monitor details are displayed,
then click [Apply].
11. Click [OK], and close the window.
12. Remove the Utility Disk from the A drive.
Connecting the monitor and turning the monitor on and off
Installing set-up information and the
ICC profile (for Windows)
Depending on the computer or OS, it may be
necessary to use the computer to operate the
installation of monitor set-up information etc. If so,
follow the steps below to install the monitor set-up
information. (Depending on the type of computer or
OS, command names and methods may differ.
Please follow the computer’s own operation manual
while reading this.)
About the ICC profile
An ICC (International Color Consortium) profile
is a file that describes the color characteristics
of the LCD monitor. By using an application that
works together with an ICC profile, a high color
resolution can be realized.
- Windows98/2000/Me/XP all use the ICC profile.
- When installing Windows98/2000/Me/XP set-
up information (described below), the ICC
profile is also installed. If you would like to
install the ICC program only, please refer to
Installing the ICC profile on page 10.
- When using an ICC profile, set [WHITE
BALANCE] to [STD] .
Installing set-up information
For Windows95
Installing monitor set-up information into Win-
dows95.
This explanation assumes that the floppy disk drive
is "A drive".
1. Place the Utility Disk (provided) into the
computer's A drive.
2. Click on the [Start] button. From [Settings],
choose [Control Panel].
3. Double click on [Display].
4. Click on [Settings], [Advanced Properties], and
[Monitor], then [Change].
5. Click on [Have disk], confirm that [Copy
manufacturer's files from:] is [A:] then click [OK].
6. Confirm that the monitor details are selected,
and click [OK].
7. Check that the monitor details are displayed,
then click [Apply].
8. Click [OK], and close the window.
9. Remove the Utility Disk from the A drive.

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Connecting the monitor and turning the monitor on and off
For Windows2000
Installing monitor set-up information into Win-
dows2000, and setting the monitor's ICC profile as
a predetermined value.
This explanation assumes that the floppy disk drive
is "A drive".
1. Place the Utility Disk (provided) into the
computer's A drive.
2. Click on the [Start] button. From [Settings],
choose [Control Panel].
3. Double click on [Display].
4. Click on [Settings], [Advanced] and [Monitor].
5. Click on [Properties], [Driver] and [Update
Driver].
6. When [Upgrade Device Driver Wizard] appears,
click [Next].
7. Check [Display a list of the known drivers for
this device so that I can choose a specific
driver] and click [Next].
8. When [Models] is displayed, click on [Have
disk], confirm that [Copy manufacturer's files
from:] is [A:], and click [OK].
9. Select the monitor from the list displayed and
click [Next].
10. Click [Next], confirm that the monitor's name
appears on the screen, and click [Finish]. If
[The Digital Signature Not Found] appears, click
[Yes].
11. Click on [Close].
12. Click [OK], and close the window.
13. Remove the Utility Disk from the A drive.
For WindowsMe
Installing monitor set-up information into
WindowsMe, and setting the monitor's ICC profile
as a predetermined value.
This explanation assumes that the floppy disk drive
is "A drive".
If the "Add new Hardware Wizard" has appeared:
1. Place the Utility Disk (provided) into the
computer's A drive.
2. Check [Specify the location of the driver
[Advanced]] and click [Next].
3. Check [Display a list of all the drivers in a
specific location, so you can select the driver
you want.], then click [Next].
4. When [Models] is displayed, click on [Have
disk], confirm that [Copy manufacturer's files
from:] is [A:], and click [OK].
5. Select the monitor details from the list, then
click [Next], [Next], and [Finish]. If the "Add new
Hardware Wizard" appears, repeat the
installation commands beginning from 2 above.
6. Remove the Utility Disk from the A drive.
If the "Add New Hardware Wizard" has not ap-
peared:
1. Place the Utility Disk in the computer's A drive.
2. Click on the [Start] button. From [Settings],
choose [Control Panel].
3. Double click on [Display].
4. Click on [Settings], [Advanced] and [Monitor].
5. In [Options], check [Automatically detect Plug &
Play monitors] and click on [Change].
6. Check [Specify the location of the driver
[Advanced]] and click [Next].
7. Check [Display a list of all the drivers in a
specific location, so you can select the driver
you want.] and click [Next].
8. When [Models] is displayed, click on [Have
disk], confirm that [Copy manufacturer's files
from:] is [A:], and click [OK].
9. Select the monitor details, then click [Next],
[Next], and [Finish].
10. Check that the monitor details are displayed,
then click [Apply].
11. Click [OK], and close the window.
12. Remove the Utility Disk from the A drive.
For WindowsXP
Installing monitor set-up information into
WindowsXP, and setting the monitor's ICC profile
as a predetermined value.
This explanation assumes that the floppy disk drive
is "A drive".
1. Place the Utility Disk in the computer's A drive.
2. Click on the [Start] button. Choose [Control
Panel].
3. Switch to "Classic View".
4. Double click on [Display].
5. Click on [Settings], [Advanced] and [Monitor].
6. Click on [Properties], [Driver] and [Update
Driver].
7. When [Hardware Update Wizard] appears,
check [Install from a list or specific location
[Advanced]] and click [Next].
8. Check [Don't search. I will choose the driver to
install.] and click [Next].
9. Click on [Have Disk], confirm that [Copy
manufacturer's files from:] is [A:], and click
[OK].
10. Select the monitor from the list displayed and
click [Next].
If [has not passed Windows Logo testing...]
appears, click [Continue Anyway].
11. Confirm that the monitor's name appears on the
screen.
12. Click on [Finish].
13. Click on [Close].
14. Click [OK], and close the window.
15. Remove the Utility Disk from the A drive.

10
Information about the ColorSync
profile (for MacOS)
About the ColorSync profile
ColorSync is the Apple Corporation's color
management system and is a function that
enables color resolution to be realized when
used with a compatible application. A ColorSync
profile describes the color characteristics of the
LCD monitor.
Notes:
- This monitor's ColorSync profile works with
MacOS8.5 or above.
- When using the ColorSync profile, set
[WHITE BALANCE] to [STD].
Setting up the ColorSync profile
Notes:
- A floppy disk drive is necessary. In addition, it is
necessary to have PC Exchange or File
Exchange installed in your system.
- Depending on the type of computer or OS,
command names and methods may differ. Please
follow the computer’s own operation manual
while reading this.
1.Place the Utility Disk (provided) into the
computer’s floppy disk drive.
2.Copy the profile to be used from the Mac folder
on the Utility Disk to the ColorSync profile folder
located within the system folder.
3.Using the ColorSync on the control panel,
choose the profile to be used.
Connecting the monitor and turning the monitor on and off
Installing the ICC profile
Installing the monitor’s ICC profile. (If the set-up
information has already been installed, so too has
the profile, and there is no need to install it.)
This explanation assumes that the floppy disk drive
is "A drive".
1. Place the Utility Disk in the computer’s A drive.
2. Click on the [Start] button. From [Settings],
choose [Control Panel].
3. Double click on [Display].
4. Click on [Settings] and [Advanced].
5. Click on [General] and from [Compatibility]
select [Apply the new display setting without
restarting], then click on [Color Management].
6. Click [Add], and select [3 ½Floppy [A:]] as the
file location.
7. Choose the color profile that you would like to
install, and click on [Add].
8. Choose the profile and click on [Set As Default].
9. Click [OK], and close the window.
10. Remove the Utility Disk from the A drive.
- When using an ICC profile, set [WHITE
BALANCE] to [STD] .

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Adjusting the screen display
Adjustment the backlight (right column)
Brightness of backlight can be adjusted.
Automatic screen adjustment (p.12)
The CLOCK, PHASE, H-POS (horizontal position-
ing) and V-POS (vertical positioning) functions can
be adjusted automatically.
Manual screen adjustment (p. 13)
Fine adjustments can be made using the On
Screen Display (OSD) Menu.
Note:
- All adjustments will be saved even after turning
the power off.
Resetting all adjustment values
All adjustment values can be returned to their
original ex-factory values in one command.
1. Turn off the monitor power.
2. Press the MENU button and the button
simultaneously, and while doing this press the
power button (i.e. turn the power on).
When [ALL RESET] appears on the screen, the
reset is complete.
Notes:
- While ALL RESET is displayed, the control
buttons are disabled.
- It is not possible to reset values when the
adjustment lock is in place. Remove the
adjustment lock before attempting to operate
control buttons.
Adjustment lock function
By disabling the control buttons (i.e. setting the
lock) any attempted changes to adjusted values will
be voided.
1. Turn off the monitor power.
2.While pressing the MENU button, press the
power button (i.e. turn the power on).
[ADJUSTMENT LOCKED] will appear on the
screen, and the lock will be set.
Note:
- When the lock is in place, all buttons other than
the power button are disabled.
Adjustment lock release
1. Turn off the monitor power.
2.While pressing the MENU button, press the
power button (i.e. turn the power on).
[ADJUSTMENT UNLOCKED] will appear on the
screen, and the lock will be removed.
Adjusting the backlight
1. Without the OSD Menu being displayed, push the
or the button.
2. Adjust by pressing the button (darker) or
button (lighter).
3. Press the MENU button.
On Screen display for adjustment will disappear.
Note:
- On Screen display for adjustment disappears
several seconds after the last operation.

12
Automatic screen adjustment
Options in the ADJUSTMENT Menu can be
adjusted automatically (CLOCK, PHASE, H-POS,
V-POS).
Note:
- When setting up this monitor for the first time or
after having changed an aspect of the current
system, perform an automatic screen adjustment
before use.
Automatic adjustment screen display
To perform an automatic adjustment, first display
an image that makes the entire screen very bright.
If you are using Windows, you can also use the
Adjustment Pattern on the accompanying Utility
Disk for Windows.
Displaying the Adjustment Pattern (for Windows)
This explanation is for Windows 95/98/2000/Me/XP,
and assumes that the floppy disk drive is [A drive].
Note:
- If the floppy disk drive of your computer is not
"A drive", please read the below substituting the
floppy disk drive you are using in place of
"A drive" or "A".
1. Place the Utility Disk (provided) into the
computer's A drive.
2. Open [My Computer] and select [3 ½Floppy
(A:)]. If using Windows 3.1, open [File Manager]
and choose "A drive".
3. Double click on [Adj_uty.exe] to run the
Adjustment Program. The Adjustment Pattern will
appear.
Adjustment pattern
After completing the adjustment, press the
computer's [Esc] key to exit the Adjustment
Program.
Note:
- If your computer's display mode is set to 65K
colors, you may see the different color levels in
each color pattern or the gray scale may look
colored. (This is due to the input signal
specification and is not a malfunction.)
Adjusting the screen display
Automatic adjustment
Automatic adjustment can be performed using
either the AUTO button or the MENU button.
Automatic adjustment using the AUTO button
1.With the OSD Menu not displayed, press the
AUTO button.
2.Press the AUTO button again.
[ADJUSTING] will appear on the screen, and
after a few seconds [ADJUSTING] will disap-
pear. (The automatic adjustment is now com-
plete.)
Automatic adjustment using the MENU button
1. Press the MENU button.
The ADJUSTMENT Menu will be displayed.
2. Press the button.
The screen will become dark and [ADJUSTING]
will be displayed. After a few seconds the
ADJUSTMENT Menu will return. (The automatic
adjustment is now complete.)
3. Press the MENU button 4 times to make the
OSD Menu disappear.
Notes:
- In most cases automatic adjustment is sufficient.
- If necessary due to any of the following, manual
adjustments (p. 13) can be performed after the
automatic adjustment.
- When further fine adjustment is needed.
- When [OUT OF ADJUST] is displayed. (When
the screen displays an entirely dark image, the
automatic screen adjustment may be disabled.
When making an automatic adjustment, be
sure to either use the Adjustment Pattern or try
displaying an image that makes the entire
screen very bright.)

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ADJUSTMENT Menu
MANUAL: Individual menu options are manually
adjusted.
AUTO: Every menu option is automatically
adjusted.
Notes:
- Press the button to select [AUTO].
- To choose a menu option: button
- To go to the next menu: MENU button
CLOCK
The figure below demonstrates how to adjust so
that vertical flicker noise is not emitted. (
buttons)
PHASE
The figure below demonstrates how to adjust so
that horizontal flicker noise is not emitted. (
buttons)
Note:
- Adjustments to PHASE should be made only
after CLOCK has been correctly set.
H-POS (horizontal positioning) and V-POS
(vertical positioning)
To center the screen image within the boundaries
of the screen, adjust the left-right (H-POS) values
and the up-down (V-POS) values. ( buttons)
Vertical flicker noise
Horizontal flicker noise
Screen frame
Adjustment
pattern
Adjusting the screen display
Manual screen adjustment
Adjustments can be made using On Screen
Display (OSD) Menu provided.
1.Display an image that makes the entire screen
very bright. If using Windows, you can open and
use the Adjustment Pattern on the accompanying
Utility Disk. (p. 12)
2.Press the MENU button.
The ADJUSTMENT Menu will be displayed.
At this point relevant menu options can be
adjusted.
Each time the MENU button is pressed the next
menu is selected. (ADJUSTMENT →GAIN
CONTROL →WHITE BALANCE →MODE
SELECT →OSD Menu disappears)
Notes:
- The OSD Menu automatically disappears
approximately 30 seconds after the last
command.
- This explanation is based on using the
Adjustment Pattern (for Windows) to make
adjustments.

14
Adjusting the screen display
GAIN CONTROL Menu
BLACK LEVEL and CONTRAST are optimized
before shipment, but can be adjusted to suit.
MANUAL: Individual menu options are manually
adjusted.
AUTO: Every menu option is automatically
adjusted using the Auto Gain Control*
function.
Notes:
- Press the button to select [AUTO].
- To choose a menu option: button
- To go to the next menu: MENU button
* Auto Gain Control function
- The Auto Gain Control adjusts contrast and black
level based on the brightest color of the image
displayed. If you are not using the Adjustment
Pattern it is necessary to have an area of 5 mm x
5 mm of white displayed, and if not adjustments
may not be possible.
- When using the Auto Gain Control function, set
[WHITE BALANCE] to other than [USER]. If
[USER] is set, the Auto Gain Control function
cannot be used.
BLACK LEVEL
Total screen brightness can be adjusted while
watching the color pattern. ( buttons)
CONTRAST
While watching the color pattern, adjustments can
be made so that all gradations appear. ( but-
tons)
DISPLAY COLORS
Maximum display colors can be set. ( buttons)
260K (260,000) and 16M (16.19 million)
Color pattern
WHITE BALANCE Menu
WHITE BALANCE (color tone) can be adjusted as
necessary. (As adjustments are made before
shipment, there is no real necessity for further
alteration.)
Notes:
- On settings other than [STD] not all gradations
can be displayed. To display all gradations, set to
[STD].
- Use the buttons to select [COOL], [·], [STD],
[·], [WARM] or [USER].
- Selecting USER will display the setting values for
[R-CONTRAST], [G-CONTRAST] and [B-
CONTRAST], in order to make fine adjustments.
- Use the button to select [R-CONTRAST], [G-
CONTRAST] and [B-CONTRAST].
- To go to the next menu: MENU button
COOL ....... Color tone bluer than standard
•............. Color tone slightly bluer than standard
STD .......... Color tone standard setting
•............. Color tone slightly redder than standard
WARM ...... Color tone redder than standard
USER
R-CONTRAST ..... button for blue-green
button for red
G-CONTRAST ..... button for purple
button for green
B-CONTRAST ..... button for yellow
button for blue

15
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Adjusting the screen display
MODE SELECT Menu
Notes:
- Depending on the resolution of the input signal,
even if menu options can be selected, the display
may not change.
- To choose a menu option: button
- When adjustment complete: MENU button
OSD H-POSITION (OSD horizontal position)
The position of the OSD display can be moved to
the left and right. ( buttons)
OSD V-POSITION (OSD vertical position)
The position of the OSD display can be moved up
and down. ( buttons)
400 LINES (degree of resolution)
You can specify the horizontal resolution of a 400-
line screen when using US text, etc. ( buttons)
640: 640 X 400 dot mode
720: 720 X 400 dot mode (US text etc.)
Note:
- As the resolution input for other than 400 lines is
done automatically, there is no need to set it.
SCALING (Level of scaling)
The sharpness of the image can be adjusted. (
buttons)
Note:
- When the display mode is set to less than
1024 x 768 pixels, the display is enlarged to
cover the whole screen (i.e. the side ratio of the
display may change).
- Display modes of 1024 x 768 pixels cannot be
changed.

16
Monitor care and repair
Monitor care
Always remove the plug from the AC outlet when
cleaning the monitor.
Cabinet and control panel section
Use a soft dry cloth to lightly wipe away any grime
from the cabinet and control panel.
If they are very dirty, apply neutral detergent to a
dampened soft cloth, wring it out well and wipe
away grime.
LCD panel section
Use a soft dry cloth to lightly wipe away dirt and
dust from the surface of the LCD panel. (A soft
cloth such as gauze or that used for lens cleaning
is suitable.)
CAUTION!
- Never use thinner, benzine, alcohol, glass
cleaner, etc, as this could lead to color change or
change in shape.
- Never scratch the monitor with anything hard or
apply strong pressure as this could leave marks
or result in malfunction.
Storage
If the monitor will not be used for a long period of
time, be sure to remove the power plug from the
AC outlet.
CAUTION!
- Do not leave the monitor in contact with rubber or
plastic items for long periods of time as this could
lead to color change or change in shape.
Troubleshooting
If you think the monitor may be faulty, please check
the following points before taking it to be repaired.
If afterwards it still does not work, please contact
the shop where you purchased the monitor or your
nearest Sharp authorized Service Center.
The monitor's florescent tubes have a limited
life span.
- If the screen darkens, persistently flickers or
does not light up, it may be necessary to
replace the florescent tube unit. Please
inquire at the shop where you purchased the
monitor or your nearest Sharp authorized
Service Center. (Never attempt this
replacement on your own.)
- In the initial period of use, due to the
characteristics of florescent tubes the screen
may flicker. (This is not a malfunction.)
Should this happen, check by first turning off
the power, then turning it on again.
No image appears on the monitor (Power LED is
not lit)
- Are the AC adapter and the power cord
connected properly? (p. 7)
No image appears on the monitor (Power LED is lit)
- Is the computer connected properly? (p. 7)
- Is the computer turned on?
- Does the computer's signal timing correspond to
monitor specifications? (p. 18)
- Is the computer in power-saving mode?
Control buttons do not work
- Is the adjustment lock on? (p. 11)
The image appears distorted
- Does the computer's signal timing correspond to
monitor specifications? (p. 18)
- Perform automatic adjustment. (p. 12)
- If you can change the refresh rate on the
computer you are using, change the value to a
lower frequency.

17
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Specifications
Product specifications
Model name
LL-T15A3-H(Frosty gray) / LL-T15A3-B(Black)
LCD display
38 cm measured diagonally
TFT LCD module
Resolution (max.)
XGA 1024 x 768 pixels
Displayable colors (max.)
Approx.16.19 million colors (6bit + FRC)
Brightness (max.)
260cd/m2
Dot pitch
0.297(H) x 0.297(V) mm
Contrast ratio
350:1
Angle of visibility
Left-right 160°; Up-down 150°
(contrast ratio
>
=
5 )
Screen display size
Horizontal 304.1 mm x Vertical 228.1 mm
Video signal
Analog RGB (0.7Vp-p) [75Ω]
Sync signal
Separate Sync (TTL level: +/-)
Expansion compensation
Digital scaling (Enlargement VGA/SVGA etc. to
full screen size.)
Plug & Play
VESA DDC1/DDC2B compatible
Power management
VESA: based on DPMS
Input signal terminal
Mini D-sub 15 pin (3 row)
Screen tilt
Upward approx.0 - 25°; downward approx.0 - 3°
Power supply
AC100 - 240V, 50/60Hz (Use special AC adapter,
type NL-A53J of Sharp Corporation.)
Temperature of operating environment
5 - 35°C
Power consumption
Maximum 30W (Standby state: 3W)
(Use special AC adapter.)
Dimensions
343(W) x 170(D) x 308(H) mm
Weight
Approx. 3.4kg
(approx. 2.5kg excluding stand)
(Excluding AC adapter.)
Dimensions (Units: mm)
130
343
44 267
308
200
170
Analog signal cable: Approx. 1.8m
Special AC adapter:
Approx. 1.8 m
Approx. H 120 mm x D 60 mm x H 37 mm

18
The analog RGB input connector pin
(Mini D-sub connector with 15 pins)
5 1234
10 6789
15 11121314
No. Function
1 Red video signal input
2 Green video signal input
3 Blue video signal input
4 N.C.
5 N.C.
6 For red video signal GND
7 For green video signal GND
8 For blue video signal GND
9 DCC +5V
10 N.C.
11 GND
12 DDC data
13 For Hsync signal input
14 For Vsync signal input
15 DDC clock
Specifications
Signal timings
640x480
800x600
1024x768
720x400
640x480
832x624
1024 x768
31.5kHz
37.9kHz
37.5kHz
35.1kHz
37.9kHz
48.1kHz
46.9kHz
48.4kHz
56.5kHz
60.0kHz
31.5kHz
35.0kHz
49.7kHz
60.2kHz
60Hz
72Hz
75Hz
56Hz
60Hz
72Hz
75Hz
60Hz
70Hz
75Hz
70Hz
66.7Hz
74.6Hz
75Hz
25.175MHz
31.5MHz
31.5MHz
36.0MHz
40.0MHz
50.0MHz
49.5MHz
65.0MHz
75.0MHz
78.75MHz
28.3MHz
30.2MHz
57.3MHz
80.0MHz
- Recommended resolution is 1024 x 768.
- All are compliant only with non-interlaced.
- Frequencies for Power Macintosh are reference
values. To connect, another adapter
(commercially available) may be required.
- If the monitor is receiving timing signals that are
not compatible, [OUT OF TIMING] will appear.
Follow your computer’s instruction manual to set
the timing so that it is compatible with the
monitor.
- If the monitor is not receiving any signal (synch
signal), [NO SIGNAL] will appear.
Power
Macintosh
series
Vsync Dot
frequency
Display mode
VESA
US text
Hsync

19
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Power management
The monitor is based on VESA DPMS (Display
Power Management Signaling).
To activate the monitor's Power Management
function, both the video card and the computer
must conform to the VESA DPMS standard.
DDC (Plug & Play)
This monitor supports the VESA DDC (Display
Data Channel) standard.
DDC is a signal standard for carrying out Plug &
Play functions on the monitor or PC. It transfers
information such as degree of resolution between
the monitor and PC. You can use this function if
your PC is DDC compliant and if it is set so that it
can detect the Plug & Play monitor.
There are many varieties of DDC due to the
differences between systems. This monitor works
with DDC1 and DDC2B.
Specifications
DPMS mode Screen Power H-sync V-sync
consumption
ON Display on 30W Yes Yes
STANDBY No Yes
SUSPEND Display off 3W Yes No
OFF No No

20
4.Attach the arm to the monitor with four screws.
Note:
- The screws used to attach the arm should be M4
screws with a length of 4 mm ~ 6 mm protruding
from the surface to be attached. Using different
screws could lead to malfunction or may lead to
the monitor falling off, internal damaged,
personal injuly.
4 - 6 mm
5.Connect the AC adapter to the monitor's power
terminal.
An arm or stand based on the VESA standard
(commercially available) can be attached to the
monitor.
Procurement of the arm or stand is at the custom-
er's discretion.
When choosing the arm to be installed please take
note of the following points.
- The arm should be compatible with the VESA
standard, and there must be a gap of 75 mm x
75 mm between the screw holes on the section
to be attached.
- The arm must not fall off or break off after being
attached to the monitor.
Note:
- Do not overly bend the cable or add extension
cords as this could lead to malfunction.
1.Turn off the power switch and remove the AC
adapter from the monitor's power terminal.
2.Being careful not to damage the monitor, spread
out a soft cloth and lay the monitor on it display-
side down.
3.Remove the four screws and then remove the
stand from the monitor.
Notes:
- The stand is specially made for use with this
monitor. Once having removed the stand, never
attempt to attach it to another device.
- Once having removed the screws, store them
together with the stand and if the stand is ever
re-attached be sure to use the original screws.
Using different screws could lead to malfunction.
Instructions for attaching a VESA compliant arm
Screw used to attach arm
Arm
Part of monitor to which arm is
attached

SHARP CORPORATION
© 2002 SHARP CORPORATION
Printed in China
624315320004
0LTHG15320004(1)