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LL-T1512W
q
SERVICE MANUAL
CODE :
LCD COLOR MONITOR
MODEL LL-T1512W
CONTENTS
00ZLLT1512WSE
CHAPTER 1.
CHAPTER 2.
CHAPTER 3.
CHAPTER 4.
CHAPTER 5.
OUTLINE OF THE PRODUCT,
NOMENCLATURE AND FUNCTION........................................1 - 1
CONNECTION, ADJUSTMENT,
OPERATION AND FUNCTIONS..............................................2 - 1
DISASSEMBLY AND ASSEMBLY............................................3 - 1
TROUBLESHOOTING..............................................................4 - 1
BLOCK DIAGRAM....................................................................5 - 1
Parts marked with "!" are important for maintaining the safety of the set. Be sure to replace these parts with specified
ones for maintaining the safety and performance of the set.
This document has been published to be used
SHARP CORPORATION
for after sales service only.
The contents are subject to change without notice.
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LL-T1512W
CHAPTER1. OUTLINE OF THE PRODUCT, NOMENCLATURE AND FUNCTION
1. SPECIFICATIONS
PRODUCT SPECIFICATIONS
■■■■
• LCD display
15 inches (38 cm measured diagonally)
Advanced super-V and Anti Glare Low Reflection TFT LCD module
• Resolution (max.)
XGA 1024 u 768 pixels
• Displayable colors (max.)
16.77 million colors (8 bit)
• Brightness (max.)
220cd/m
• Dot pitch
0.297(H) u 0.297(V) mm
• Contrast ratio
350 : 1
• Viewing angle
Horizontal 170°/Vertical 170°
• Viewable area
Horizontal 304.1 mm u Vertical 228.1 mm
• Video signal
Analog: Analog RGB (0.7Vp-p) [75Ω]
Digital: DVI standard 1.0 compatible
• Sync s ignal
H/V separate Sync (TTL level: +/-), Sync on Green,
Composite Sync (TTL level: +/-)
• Expansion compens ation
Digital screening
(Enlarging VGA/SVGA etc. with a compensation process)
[based on a fixed aspect ratio, and enlarging to full screen size]
• Plug & Play
VESA: DDC1/DDC2B compatible
• Power management
VESA: DPMS, DVI: DMPM
• Input connectors
mini D-sub 15 pin (3 rows), DVI-D 24pin
• USB hub function
Upstream u 1 port, Downstream u 2 ports
(USB standard Rev.1.1, Bus-powered type)
• Tilting and Swiveling
Tilt: Approx. 0 ~ 30°
Swivel: Left-right total 90° (Turn table type)
• Power sup ply
AC100-240V, 50/60Hz
(Use special AC adapter, type NL-A56J of Sharp Corporation.)
• Operating temperature
5 - 35°C
2
• Power consumption
Maximum 29W (Stand by state: 2.6W)
(Use special AC adapter.)
• Dimensions (W u D u H)
370 mm u 150 mm u 355 mm
• Weight (excluding AC adapter)
Approx. 4.4 kg (Approx. 3.3kg excluding stand)
DIMENSIONS (Units: mm)
■■■■
Analog signal cable: Approx. 2.0 m
(The length from analog signal input connector)
Special AC adapter
Approx. 2.0 m
Approx. W 125 mm u D 60 mm u H 33 mm
Supplied USB cable: Approx. 2.0 m
Digital signal cable, NL-C01E (purchased separately): Approx. 2.0 m
Relevant signal timings (analog)
Display mode
VESA 640 u 480 31.5kHz 60Hz 25.175MHz
800 u 600 35.1kHz 56Hz 36.0MHz
1024 u 768
US text 720 u 400 31.5kHz 70Hz 28.3MHz
Power
Macintosh
series
640 u 480 35.0kHz 66.7Hz 30.2MHz
832 u 624 49.7kHz 74.6Hz 57.3MHz
1024 u 768
Hsync
(kHz)
37.9kHz 72Hz 31.5MHz
37.5kHz 75Hz 31.5MHz
37.9kHz 60Hz 40.0MHz
48.1kHz 72Hz 50.0MHz
46.9kHz 75Hz 49.5MHz
48.4kHz 60Hz 65.0MHz
56.5kHz 70Hz 75.0MHz
60.0kHz 75Hz 78.75MHz
60.2kHz 75Hz 80.0MHz
Vsync
(Hz)
Dot frequency
(MHz)
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LL-T1512W
• All are compliant only with non-interlaced.
• Frequencies for Power Macintosh are reference values. To connect,
another adapter (purchased separately) 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.
Relevant signal timings (digital)
Display mode
VESA 640 u 480 31.5kHz 60Hz 25.175MH
800 u 600 37.9kHz 60Hz 40.0MHz
1024 u 76 8 48.4kHz 60Hz 65.0MHz
US text 720 u 400 31.5kHz 70Hz 28.3MHz
• All are compliant only with non-interlaced.
• A co mputer with an output terminal conforming to DVI (DVI-D24 pin
or DVI-I29 pin) and with XGA output capability can be connected
here. Depending on the type of computer to be connected, the display may not work correctly. In order to connect, it is necessary to
purchase a digital signal cable (model name: NL-C01E) separately.
• 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.
Hsync
(kHz)
37.9kHz 72Hz 31.5MHz
37.5kHz 75Hz 31.5MHz
48.1kHz 72Hz 50.0MHz
46.9kHz 75Hz 49.5MHz
56.5kHz 70Hz 75.0MHz
60.0kHz 75Hz 78.75MHz
Vsync
(Hz)
Dot frequency
(MHz)
The analog signal input connector pin
10
15 11121314
(Mini D-sub connector with 15 pins)
No. Function No. Function
1 Red video signal input 9 DDC/VCC
2 Green video signal input 10 GND
3 Blue video signal input 11 N.C.
4 N. C. 12 DDC data
5 GND 13 For Hsync signal input
6 For red video signal GND 14 For Vs ync signal input
7 For green video signal GND 15 DDC cl ock
8 For blue video signal GND
25134
6789
The DVI-D input connector pin
No. Function No. Function
1 TMDS data 2- 13 N.C.
2 TMDS data 2+ 14 +5V
3 TMDS data 2 shield 15 GND
4 N.C. 16 Hot plug detection
5 N.C. 17 TMDS data 06 DDC clock 18 TMDS data 0+
7 DDC data 19 TMDS data 0 shield
8 N. C. 20 N.C.
9 TMDS data 1- 21 N.C.
10 TMDS data 1+ 22 TMDS clock shield
11 TMDS data 1 shield 23 TMDS clock +
12 N.C. 24 TMDS clock -
Power management
The monitor is based on the VESA DPMS and the DVI DMPM standards.
To activate the monitor’s Power Management function, both the video
card and the computer must conform to the VESA DPMS standard
and the DVI DMPM standard.
DPMS: Display Power Management Signalling
DPMS mode Screen
ON Display on 29W Yes Yes
STANDBY Display off 2.6W No Yes
SUSPEND Yes No
OFF No No
DMPM: Digital Monitor Power Management
DPMS mode Screen Power consumption
ON Display on 29W
OFF Display off 2.6W
Power
consumption
H-sync V-sync
DDC (Plug & Play)
This monitor supports the VESA DDC (D isplay 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 s ystems. This monitor works with DDC1 and DDC2B.
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Lightly holding both sides of the monitor,
adjust it to a suitable viewing angle.
Note: When adjusting the screen tilt and
swivel, pressure from hands on the
LCD panel could cause damage.
approx.30˚
approx.45˚
approx.45˚
Adjusting the tilt and the swivel of monitor
2. TECHNICAL SPECIFICATIONS
Item MIN TYP MAX Unit
Power supply voltage AC 90 100 110 V
DC 12.0 12.5 13.0 V
Working temperature range +5 . +35 °C
Storing temperature range -20 . +60 °C
Humidity range 20 . 85 %RH
Visual angle range Vertical (CR u 5) m70 m85 . Temperature
Horizontal (CR u 5) m70 m85 . Temperature
Contrast ratio (CR) (θ = 0°) . 350 ..
Response speed Leading (tr) . 525ms
Trailing (td) . 20 50 ms
Screen white chromaticity (X) 0.283 0.313 0.343 .
(Y) 0.299 0.329 0.359 .
White surface luminance (Y
) 180 220 . cd/m
L
Module model number LQ150X1MZ10
* Specifications and a part of the appearance are subject to change without notice.
2
NOMENCLATURE AND FUNCTION
Front view Rear view
1 MENU button
This button is used to open, select and close the On Screen Display (OSD) Menu.
2 SELECT button
When the OSD Menu is displayed, selects the menu option to be
adjusted.
3 e d button
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 POWER button (LED)
Turns the monitor on and off. The LED is lit green when in use and
orange when in power-saving state.
5 INPUT button
This button toggles the signal input connectors (Analog signal
input connector 13 DVI-D input connector)
6 COLOR MODE button
This button selects the color tone of the screen.
7 BRIGHT button
This button is used to change the brightness the backlight.
8 BRIGHT SENSOR
Senses the brightness of the surrounding environment to adjust
automatically the backlight level.
9 Security lock anchor
By connecting a security lock (purchased separately) 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.
F Ventilation opening
The openings to give off an internally generated heat.
Note: Never block the ventilation openings as this may lead to over-
heating inside the monitor and result in malfunction.
G DC IN connector
Remove the cover to see DC-IN connector. The AC adapter is
connected here.
H Analog signal input
Remove the cover to see Analog signal input connector. (Analog
RGB signal connectorcable had been connected when shipping
out this monitor)
I AC adapter
AC adapter is mounted inside the cover.
J Analog RGB signal cable
Connecting to Analog RGB output connector on a computer.
K DVI-D input connector
Remove the cover to see Digital signal input connector (DVI-D 24
pin). Connecting to a Digital RGB output connector on a computer.
Notes: • The input connector available for connecting to a comput er
equipped with DVI compatible output connector (DVI-D24pin
or DVI-I 29pin) and XGA output capability. (Depending on
the type of computer to be connected, the display may not
work correctly)
• In order to connec t, it is necessary to purchase a Digital signal cable (Model name: NL-C01E)
L USB ports
USB ports (Upstream: 1 port, Downstream: 2 ports)
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CHAPTER 2. CONNECTION, ADJUSTMENT, OPERATION, AND FUNCTIONS
1. CONNECTION, POWER ON/OFF
CONNECTING THE MONITOR TO A POWER SOURCE
(AND DIGIT AL SI GN AL CA BL I N G)
Use only the AC adapter supplied.
Note: Do not over bend the cable or give excessive stress to the
cable or sandwich the cables between covers. Otherwise a
breaking of a wire may be occur.
1. Remove the rear cover (a).
Hold both lower sides of the cover and slowly pull the cover
upwards.
Cover(a)
2. Remove the cover (b).
Pull slowly the upper sides of cover toward you while pushing the
marks.
4. Mounting the AC adapter
1) Bend lightly the root part of the cord. (Do not ov er bend the
cord.)
2) Insert the root part of outlet cord until it goes out partly, from
the round hole. And then slowly put down the AC adapter.
AC adapter
Please check whether AC adapter is placed horizontally within the
both fixing rib.
Cover(b)
3. Remove the cover (c).
Pull slowly toward you while pushing both inner sides of the cover.
Cover(c)
Fixing rib
5. Connecting AC adapter
1) Insert the cord into the cord holder.
2) Bundle cord and hang it on the cord hook.
3) Connect outlet plug to DC-IN connector.
Cord holder
Hook
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• When you use a Digital signal cable (to be purchased separately),
plug the Digital signal cable’s connector into DVI-D input connector
and fix with screws each side.
Digital signal cable (to be purchased separately)
• When you use only the digital signal cable, it allows you to remove
the analog signal cable. (Disconnect by loosening the screws each
side.)
6. Close the cover (c).
Slide the cover (c) ahead slowly until the hooks each side reach to
catchers. Be careful not to put the cables between any others.
8. Close the cover (a).
1) Insert the three hooks into the slit.
2) Push slowly both sides of the cover until the three hooks click
into place.
7. Close the cover (b).
1) Run cable through the opening of the cover, and insert the
hooks each side into projection.
2) Push slowly the upper side of the cover until the hooks click
into place.
9. Connect the AC cord to the AC adapter inlet, and plug into AC outlet.
Note: W hen you remove the cover (b), you must disconnect the AC
cord from AC adapter inlet. It is impossible to remove the cover
(b) when power cord is connected to AC adapter.
(When you are faced with an AC cord tightened into AC
adapter, please pull it off slowly and carefully.)
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CONNECTING THE MONITOR TO A COMPUTER (PC ETC.)
Analog RGB connection
Connect this device’s analog signal cable to the computer (PC etc.)
Before connecting the cable, ensure that both the monitor and com-
puter are switched off.
Be careful not to overly bend the cable or add stress onto the cable as
this could lead to malfunction.
Analog RGB output connector
(Mini D-Sub 15 pin, 3 row)
Paying attention to connector direction, firmly insert
the analog signal cable to here, and then tighten the
screws at both sides.
Analog signal cable
If connecting to a D-sub 15 pin 2 row Apple
Power Macintosh, attach a Macintosh conversion
adapter (to be purchased separately) to the analog
signal cable.
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.
Turn on device to
Turn monitor on
which monitor is
connected
Press power button
SELECTING THE TYPE OF INPUT CONNECTOR
Pressing INPUT button to toggle input connector.
Analog RGB signal Digital RGB signal
Macintosh
Analog signal cable
After connecting the adapter, tighten the
screws on each side to fix into place.
conversion adapter
When setting up this monitor for the first time or after changing the
configuration of the system in use, perform an Automatic Screen
Adjustment (page 21). (It is not required to perform this process when
the monitor is used in digital signal input mode)
If the monitor is connected to a Note PC and set to display simultaneously on the PC’s screen, the MS-DOS screen may not be displayed. If this occurs, you are suggested to set the display on the Note
PC only.
Digital RGB connection
Connecting the monitor to a computer via a Digital signal cable (to be
purchased separately)
Before connecting the cable, ensure that both the monitor and computer are switched off.
• This connection is available for connecting to a computer with DVI
compatible output connector (DVI-D24 pin or DVI-I 29 pin) and XGA
output capability. (Depending on the type of computer to be connected, the display may not work correctly)
• Be careful not to overly bend the cable o r add stress onto the cable
as this could lead to malfunction.
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.
Turn off device to
which monitor is
connected
Turn monitor off
Press power button
Digital RGB output connector
(DVI-D 24 pin or DVI-I 29 pin)
Paying attention to connector direction, firmly insert
the digital signal cable to here, then tighten the
screws each both sides.
Digital signal cable(to be parchased separalely)
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2. INSTRUCTIONS FOR ATTACHING A VESA COMPLIANT ARM
An arm or stand based on the VESA standard (purchased separately)
can be attached to the monitor.
Procurement of the arm or stand is at the customer’s discretion.
Arms or stands able to be used
Attachments must satisfy the following.
• Compatible with the VESA standard
• Have a gap of 75 mm u 75 mm between the screw holes on the section to be attached
• Not be likely to fall off or break off after being attached to the monitor.
How to attach the arm or stand
Notes: • Do not bend the signal cable or the AC adapter cable nor
place weight on them. Doing so could lead to damage.
• While following these instructions, please also refer to the
installation instructions in the operation manual included with
the arm or stand.
1. Turn off the monitor’s power and unplug AC plug from AC outlet.
2. Unplug AC cord from AC adapter’s AC inlet.
When you are faced with an AC cord tightened into AC adapter,
please pull off it slowly and carefully.
3. Remove the rear covers (a)(b)(c) in following the instructions given
in page 12.
4. Remove AC adapter from the stand.
1) Disconnect the plug from DC-IN connector.
5. Remove the four screws and then remove the stand from the monitor.
Caution: • 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 a malfunction.
6. Attach the arm or the stand to the monitor with four screws.
2) Remove the cord from hook and the cord holder.
Hook
Cord holder
3) While lifting AC adapter’s cord root side, slide it toward the
round opening, and then pull toward you to remove AC
adapter.
Caution: 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.
Malfunction or may lead to the monitor falling off, internal
damage, personal injury.
4 ~ 6 mm
Screw used to attach arm
Arm
Part of monitor to which arm is
attached
7. Attach the cover (a) according to the instruction given page 13.
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3. SET-UP INFORMATION, ICC PROFILE
INSTALLING SET-UP INFORMATION AND THE ICC
PROFILE (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, WindowsMe and Windows2000 all use the ICC profile.
• W hen installing Windows98, WindowsMe and Windows2000 set-up
information (described below), the ICC profile is also installed. If you
would like to install the ICC program only, please refer to
the ICC profile.
• When using the ICC profile, please set the [WHITE BALANCE] to
[STD] and the [COLOR MODE] to [OFF].
INFORMATION ABOUT THE COLORSYNC PROFILE
(MACOS)
About the ColorSync profile
ColorSync is the Apple Corporation’s color management s ystem 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, please set the [WHITE
BALANCE] to [STD] and the [COLOR MODE] to [OFF].
About installing procedure of, profile please see operation manual.
Installing
4. ADJUSTMENT
2-1. BEFORE ADJUSTING THE SCREEN DISPLAY
For analog signal
1. First perform an automatic adjustment.
2. Perform manual adjustment where necessary.
For digital signal
The monitor can generally be used without adjustment. If necessary
perform manual adjustment.
Note: All adjustments will be retained even after turning the power off.
■■■■ADJUSTING THE BACKLIGHT
The backlight brightness can be adjusted while not displayed the On
Screen Display (OSD) Menu.
When OSD Menu is being displayed, press MENU button (several
times may be required) to escape OSD Menu then operate the adjustment.
• M anual adjustment is disabled when Automatic Adjustme nt (AUTO)
is selected. To enable manual adjustment, set it to other than AUTO
(such as LOW, MID or HIGH).
1. Without the OSD Menu being displayed, push the e or the d button.
2. Pressing the e button makes brightness darker, the d button
makes it lighter.
The BRIGHT bar automatically disappears approximately 5 seconds
after the last command.
One touch Manual adjustment
1. Without the OSD Menu being displayed, push the BRIGHT button.
2. Select the desired one from LOW, MID and HIGH.
LOW : Approximately 30% of maximum brightness
MID : Approximately 60% of maximum brightness
HIGH : Maximum brightness
On Screen display for adjustment disappears several seconds after
the last operation.
Automatic adjustment
This monitor can perform backlight brightness control automatically
depending on an ambient brightness sensed by BRIGHT SENSOR.
BRIGHT SENSOR
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Adjustment pattern
1. Without the OSD Menu being displayed, push the BRIGHT button.
2. Select AUTO by BRIGHT button.
The operations above initiate the setting mode for automatic adjustment.
Press the e or the d button to set a reference level for automatic
adjustment.
(After this setting has been made, the backlight will adjust automatically using the current backlight brightness as the base standard.
Please not that the extent of change in brightness depends on the
brightness of the surrounding environment.)
Notes: • When this monitor is operating in AUTO mode if ambient
brightness changes frequently for short interval, you may
face an uncomfortable screen that changes frequently its
brightness.
In this case you are recommended to set other than AUTO
or use Manual adjustment.
• Do not place anything in front of the brightness sensor.
■■■■ SETTING COLOR MODE
Color tone can be set as below.
STD
Displays image with the color tone results from original scheme of liquid crystal panel
sRGB
sRGB is international standard of color representation specified by
IEC (International Electrotechnical Commission).
Color conversion is made in taking account of liquid crystals characteristics and represents color tone close to it original image.
VIVID
Displays an image with dynamic and VIVID primary colors.
Set by using COLOR MODE. Pressing the button alternates STD >
sRGB > VIVID > STD sequentially.
• When you use this monitor in sRGB mode, set WHITE BALANCE to
STD.
■■■■ ADJUSTMENT LOCK FUNCTION
By disabling the control buttons (i.e. setting the lock) any attempted
changes to adjusted values will be avoided.
1. Press the power button to turn off the monitor power.
2. While pressing the MENU button, press the power button (i.e. turn
the power on).
Continue to press the button until the message appears on the
screen.
When the menu is unlocked:
[ADJUSTENT LOCKED] will appear on the screen, and the
lock will be set.
When the menu is locked:
[ADJUSTENT UNLOCKED] will appear on the screen, and the
lock will be removed.
Note: When the lock is in place, all buttons other than the power but-
ton are disabled.
■■■■ ADJUSTMENT MENU RESET
Resetting ADJUSTMENT Menu (for Analog signal)
The values in ADJUSTMENT menu can be returned to their original
ex-factory values.
1. Turn on the monitor power.
2. P ress the MENU button and the e button simultaneously. When
[RESET] appears on the screen, the reset is complete.
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 SELECT 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.
3. Turn off the monitor power once when the reset is complete.
Notes: • While [ALL RESET] is displayed, the control buttons are dis-
abled.
• It is not possible to reset values when the adjustment lock is
in place. Remove the adjustment lock before attempting to
operate control buttons.
2-2. ADJUSTING THE SCREEN DISPLAY
(WHEN USING AN ANALOG SIGNAL)
(1) AUTOMATIC SCREEN ADJUSTMENT
CLOCK, PHASE, H-POS V-POS in ADJUST MENT can be adjusted
automatically.
Note: When s etting up this monitor for the first time or after having
any change on an aspect of the current system, perform this
automatic screen adjustment before use.
Opening the Adjustment Pattern (for Windows)
If you are using Windows, you can use the Adjustment Pattern (for
Windows) on the accompanying Utility Disk.
This explanation is for Windows 95/98/Me/2000, and assumes that the
floppy disk drive is “A drive”.
1. Place the Utility Disk (provided) into the computer’s A drive.
2. Open [My Computer] and select [3
dows 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.
Notes: • After completing the adjustments, press the computer’s [Esc]
key to exit the Adjustment Program.
• 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”.
• 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 specification
of the input signal and is not a malfunction.)
1
/2 Floppy [A:]]. If using Win-
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First, display an image that makes the entire screen light. If you are
using Windows, you can use adjustment pattern on the accompanying
Utility Disk.
1. Press the MENU button.
The ADJUSTMENT Menu will be displayed.
2. Press the d 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.
• In most cases automatic adjustment is sufficient.
• If necessary due to any of the following, manual adjustments can be
performed after the automatic adjustment.
• When further fine adjustment is needed.
• When the computer’s video input signals are Com posite Sync or
Sync On Green. (Automatic adjustments may not be possible.)
• 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.)
(2) MANUAL SCREEN ADJUSTMENT
Adjustments can be made using On Screen Display (OSD) Menu provided.
Press the MENU button.
The ADJUSTMENT Menu will be displayed.
ADJUSTMENT Menu
MANUAL: Individual menu options are manually adjusted.
AUTO: Every menu option is automatically adjusted.
Notes: • Press the d button to select [AUTO].
• To choose a menu option : SELECT button
• To go to the next menu : MENU button
CLOCK
The figures below demonstrate how to adjust so that vertical stripes
disappear. (e d buttons)
Vertical stripes
PHASE
The figures below demonstrate how to adjust so that horizontal stripes
like moire disappears or are at minimum. (e d buttons)
Note: Adjustme nts to PHASE should be made only after CLOCK has
been properly adjusted.
Horizontal stripes
At this point relevant menu options can be adjusted. Each time the
MENU button is pressed the next menu is selected. (ADJUSTMENT
3 GAIN CONTROL 3 WHITE BALANCE 3 MODE SELECT 3
OSD Menu disappears)
Note: The OSD Menu automatically disappears approximately 30
seconds after the last command.
H-POS (horizontal position) and V-POS (vertical position)
To align the entire screen to the screen reference frame, adjust leftright (H-POS) and up-down (V-POS). (e d buttons)
Screen frame
Adjustment
Pattern
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GAIN CONTROL Menu
MANUAL: Individual menu options are manually adjusted.
AUTO: Auto Gain Control capable of adjusting [BLACK LEVEL],
[CONTRAST] automatically.
Adjust manually as the needs arise after Automatic adjustment.
Notes: • Press the d button to select [AUTO].
• To choose a menu option : SELECT 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 and the darkest color. If you
are not using the Adjustment Pattern it is necessary to display an
image in which at least black and white of 5 mm u 5 mm are contained, and if not adjustments may not be possible.
• If the signal coming from the computer is composite sync or sync on
green, automatic adjustment cannot be performed. Please perform
manual adjustment instead.
BLACK LEVEL
Total screen brightness can be adjusted while watching the color pattern. (e d buttons)
Color pattern
CONTRAST
While watching the color pattern, adjustments can be made so that all
graduations appear. (e d buttons)
WHITE BALANCE Menu
Notes: • On settings other than [STD] not all graduations can be dis-
played. To display all graduations, set to [STD].
n
• Use the e d buttons to select [COOL], [
[WARM] or [USER].
• Selecting USER will display the setting values for [R-CONTRAST], [G-CONTRAST] and [B-CONTRAST], in order to
make fine adjustments.
• U se the SELECT button to select [R-CONTRAST], [G-CONTRAST] and [B-CONTRAST].
• To go to the next menu : MENU button
], [STD], [ n ],
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 : e button for blue-green
d button for red
G-CONTRAST : e button for purple
d button for green
B-CONTRAST : e button for yellow
d button for blue
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 : SELECT 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.
(e d buttons)
OSD V-POSITION (OSD vertical position)
The position of the OSD display can be moved up and down.
(e d buttons)
400 LINES (degree of resolution)
You can apply the horizontal resolution of a 400-line for US text, etc.
(e d buttons)
640 : 640 u 400 dot mode
720 : 720 u 400 dot mode (US text etc.)
Note: Every input except 400 lines is directed automatically, there
fore no setting is required.
EXPAND (Screen expansion)
For display modes of less than 1024 u 768 pixels, the display can be
expanded if desired. (e d buttons)
ON1: Enlarges the screen without changing the aspect ratio.
ON2: Enlarges the screen to the full display area.
Note: If a resolution of 1024 u 768 pixels cannot be achieved even
after expansion is attempted, the screen’s perimeter will display
black. (This is not a malfunction.)
SCALING (Compensation in Screen expansion)
Adjust the image to optimum sharpness when Screen expansion is
taken. (e d buttons)
2 – 8
Page 13
LL-T1512W
LANGUAGE
You can chose the language used in OSD Menu.
1. Press the d button.
Language Selection Menu (LANGUAGE) will appear.
2. Chose the desired language by SELECT button.
3. Press MENU button or the e button, and Language Selection
Menu will disappear.
2-3. ADJUSTING THE SCREEN DISPLAY
(WHEN USING A DIGITAL SIGNAL)
SCREEN ADJUSTMENT
Adjustments can be made using the On Screen Display (OSD) Menu
provided.
Press the MENU button.
The WHITE BALANCE Menu will be displayed.
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 : e button for blue-green
d button for red
G-CONTRAST : e button for purple
d button for green
B-CONTRAST : e button for yellow
d button for blue
MODE SELECT Menu
At this point relevant menu options can be adjusted.
Each time the MENU button is pressed the next menu is selected.
(WHITE BALANCE 3 MODE SELECT 3 OSD Menu disappears)
Notes: • The OSD Menu automatically disappears approximately 30
seconds after the last command.
WHITE BALANCE Menu
Notes: • On settings other than [STD] not all graduations can be dis-
played. To display all graduations, set to [STD].
• Use the e d buttons to select [COOL], [
[WARM] or [USER].
• Selecting USER will display the setting values for [R-CONTRAST], [G-CONTRAST] and [B-CONTRAST], in order to
make fine adjustments.
• U se the SELECT button to select [R-CONTRAST], [G-CONTRAST] and [B-CONTRAST].
• To go to the next menu : MENU button
n
], [STD], [ n ],
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 : SELECT 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.
(e d buttons)
OSD V-POSITION (OSD vertical position)
The position of the OSD display can be moved up and down.
(e d buttons)
EXPAND (Screen expansion)
For display modes of less than 1024 u 768 pixels, the display can be
expanded if desired. (e d buttons)
ON1: Enlarges the screen without changing the aspect ratio.
ON2: Enlarges the screen to the full display area.
Note: If a resolution of 1024 u 768 pixels cannot be achieved even
after expansion is attempted, the screen’s perimeter will display
black. (This is not a malfunction.)
SCALING (Compensation in Screen expansion)
Adjust the image to optimum sharpness when Screen expansion is
taken. (e d buttons)
LANGUAGE
You can chose the language used in OSD Menu.
1. Press the e button.
Language Selection Menu (LANGUAGE) will appear.
2. Chose the desired language by SELECT button.
3. Press MENU button or the d button, and Language Selection
Menu will disappear.
2 – 9
Page 14
LL-T1512W
5. LL-T1502A/T1512W BUTTON FUNCTION TABLE
Button Function
LL-T1512W
Analog Digital
Adjustment range and a choice
MENU Menu1: ADJUSTMENT MANUAL CLOCK n . 0~255
PHASE n . 0~31
H-POS n . 0~
V-POS n . 0~
AUTO n .
Menu1
4
Menu2
4
Menu3
4
Menu4
4
End
Menu2: GAIN CONTROL MANUA L BLACK LEVEL n . 0~127
CONTRAST n . 0~255
AUTO n .
Menu3: WHITE BALANCE n COOL
USER : R
Menu4: MODE SELECT OSD H-POSITION n 0~
OSD V-POSITION n 0~
400 LINES n . 640
EXPAND n ON1 (Aspect ratio)
SCALING n 1~5
COLOR MODE . sRGB
n
STD
n
G n B : 0 ~ 255
n
720
n
STD
n
WARM (5 stages),
n
ON2 (Full screen)
LANGUAGE n 7 language
DEUTSCH, ENGLISH, ESPANOL,
FRANCAIS, ITALIANO, NETHERLAND,
SVENSKA
n
BRIGHT BRIGHT (onetouch) n AUTO
COLOR MODE n STD
LOW n MID n HIGH
n
sRGB n VIVID
INPUT n Analog 13 Digital
SELECT n
< > BRIGHT n 0~31
BRIGHT SENSOR n BRIGHT is setting "AUTO"
POWER n
2 – 10
Page 15
CHAPTER 3. DISASSEMBLY AND ASSEMBLY
LL-T1512W
1. SEPARATING THE LCD FROM THE
STAND
1) Remove the Tilt cover 1, arm cover 2 and Adapter cover 3.
2) Remove the four screws 4 to separate the LCD 5 from the stand
6.
1
4
5
6
2
3
4
3. LCD MODULE SECTION
1) Remove the four screws A to separate the bracket 1.
2) Remove the seven screws B to separate the bracket 2.
3) Remove the eight cable 3.
4) Remove the three screws C to separate the main board 4.
5) Remove the four screws D to separate the angle 5.
B
B
2
3
3
C
C
3
4
5
D
B
B
C
3
3
1
A
A
A
2. THE LCD SECTION
1) Remove the three screws A to separate the front panel 1 from
LCD block.
2) Remove the connector 2.
3) Remove the five screws B to separate angle 3, switch board 4
and key bottom 5 6 from the LCD block.
4) Remove the four screws C to separate the LCD module 7 from
the LCD block.
5) Remove the three screws D to separate the USB board 8.
A
A
C
C
1
8
D
7
D
A
C
C
2
5
B
B
B
6
B
3
4
3 – 1
Page 16
LL-T1512W
CHAPTER 4. TROUBLESHOOTING
No power supply
Does LED turns on in green
when power switch is turned
on?
Yes
Backlight turns ON?
Yes
Check for RGB cable input
signal.
A
Normal
Replace RGB cable.
Defective
No
No
Check each signal of
BL_ON,+12V,BRI(150Hz,
Duty 15~65%)
Normal
LED turns on in red?
No
LED turns on in orange?
No
Yes
Check LED for breakage.
*
Check cable for disconnection.
*
Yes
Replace any unit (main PWB, SW PWB, cable)
which shows any defect, with a new one.
Yes
Check whether the unit is in power save
mode (synchronizing signal is not input.).
1) PC is turned off?
2) RGB cable is disconnected?
3) Synchronizing signal is output from RGB
cable?
No
Synchronizing signal is input to main PWB?
Yes
No
Check inverter block of main PWB.
*
Note: Use caution when checking output
side because it has a high voltage.
Normal
Replace LCD module lamp with
a new one.
Defective
Replace main PWB
unit with a new one.
Replace RGB cable
with a new one.
Check power input system.
1) AC adapter
* Normal?
* Connected properly?
2) Blown out fuse (F1, F2) ?
3) Each signal of 5V, D3, 3V, PVDD,
AVDD1.8V is output ?
4) LED
* Check LED for breakage.
* Check the path between CN10 and
IC22.
* Check the cable for disconnection.
Yes
Replace any defective unit.
[ 1) Adapter, 2) A Main PWB, 3) Switch
PWB, ] with a new one.
4 – 1
Page 17
Screen does not operate normally.
LL-T1512W
Check screen condition by changing display modes.
Reset the all adjustment to check if screen condition changes.
(Press and hold MENU and SELECT buttons while turning on power switch.)
A
Screen stays in black. Screen stays in white.
Check the following signals
1) Check if module control signal (IC15) is output.
2) Check if gate voltage (5VLCD) is output
normally.
3) Check if Source voltage (3.3VLCD) is output
normally.
YesNo
Check RGB cable.
Check DVI cable.
Normal
Screen jitters or on-screen
characters flicker.
CLOCK and PHASE
can be adjusted?
Yes No
Switch PWB defective
Defective
Replace RGB cable or
DVI cable with a new
one.
Abnormal color
Does abnormal area move on
screen when BLACK LEVEL or
CONT is changed after H-POS
or V-POS is set?
Yes No
USB is inoperative.
3.3 V output is generated?
(USB PWB IC1 3pin)
Clock is generated
(4 MHz: USB PWB IC3, pin 25)
RESET
(USB PWB IC3, pin 6) is High?
Data input
(USB PWB IC3, pins 7 and 8)?
Data output
(USB PWB IC3, pins 9, 10, 12,
and 13)?
Main PWB defective.
Yes
Yes
Yes
Yes
LCD panel defective.
No
No
No
No
No
Check regulator
(USB PWB IC1)
and its peripheral circuits.
Check clock generator
(USB PWB X1)
and its peripheral circuits.
Check USB PWB R3, C203,
and D7.
Check the path from USB
PWB CN1 to IC3.
Check the path from USB
PWB IC3 to CN2.
4 – 2
Page 18
LL-T1512W
only T1512W
SW PCB unit
BRIGHT SENSOR
LED
green
Key
1502A:5key
orange
1512W:8key
module
All in one LCD
15" Color Lcd Monitor
Timing
Controller
PW112
Graphic Engine
Flash
Memory
5V
Power
IIC bus
EEPROM
3.3V
1.8V
Circuit
EDID
TMDS
A/D
EDID
etc.
(Digital)
Sii141
receiver
AD9883
converter
(Analog)
AC Jack
AC Adaptor
DVI-24pin
Dsub-15pin
BL
CCFTx6
CHAPTER 5. BLOCK DIAGRAM
INVERTER
USB Hub Unit
USB PCB unit
5 – 1
Page 19
CONNECTOR SIGNAL NAME
CONTROL KEY CONNECTOR
Connector : SD53261-1510 (MOLEX)
Pin No. Symbol Description
1 +5V +5V
2 INPUT INPUT KEY
3 ON/OFF POWER ON/OFF
4 MENU MENU KEY
5++ KEY
6 – – KEY
7 SELECT SELECT KEY
8 COLOR COLOR KEY
9 BRIGHT BRIGHT KEY
10 LEDR LED CONTROL SIGNAL
11 LEDG LED CONTROL SIGNAL
12 GND GROUND
13 BRI-SENS BRIGHT SENSOR SIGNAL
14 BCS NU
15 BCK NU
LL-T1512W
5 – 2
Page 20
LL-T1512W
q
COPYRIGHT ã 2001 BY SHARP CORPORATION
All rights reserved.
Printed in Japan.
No part of this publication may be reproduced,
stored in a retrieval system, or transmitted.
In any form or by any means,
electronic, mechanical, photocopying, recording, or otherwise,
without prior written permission of the publisher.
SHARP CORPORATION
Information Systems Group
Quality & Reliability Control Center
Yamatokoriyama, Nara 639-1186, Japan
2001 October Printed in Japan
t
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