Sharp LLT15S3 Schematic
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SERVICE MANUAL
MODEL
CONTENTS
CODE : 00Z
LLT15S3SME
LCD MONITOR
LL-T15S3
CHAPTER 1. OUTLINE OF THE PRODUCT,
NOMENCLATURE AND FUNCTION. . . . . . . . . . . . . . . . . .1 - 1
CHAPTER 2. CONNECTION, ADJUSTMENT,
OPERATION, AND FUNCTIONS. . . . . . . . . . . . . . . . . . . . .2 - 1
CHAPTER 3. DISASSEMBLY AND ASSEMBLY. . . . . . . . . . . . . . . . . . . .3 - 1
CHAPTER 4. TROUBLESHOOTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 - 1
CHAPTER 5. CONNECTOR SIGNAL TABLE •
CIRCUIT DIAGRAM • PWB LAYOUT . . . . . . . . . . . . . . . . .5 - 1
■ APPENDIX : IC DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 - 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 servic e only.
The contents are subject to change without notice.
CHAPTER 1. OUTLINE OF THE PRODUCT, NOMENCLATURE AND FUNCTION
1. SPECIFICATIONS
■
■ PRODUCT SPECIFICATIONS
■ ■
• 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/m
• 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 u 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: +/-), Sync on Green,
Composite Sync (TTL level: +/-)
• Expansion compensation
Digital screening (Enlargement VGA/SVGA etc. to full screen size.)
• Plug & Play
VESA DDC1/DDC2B compatible
• Speaker output
1W + 1W
• Power management
VESA: based on DPMS
• Input signal terminal
Mini D-sub 15 pin (3 row)
• Audio input terminal
Mini stereo jack
• Headphone terminal
Mini stereo jack
• Screen tilt
Upward approx.0 - 25°; downward approx.0 - 5°
• Power supply
AC100 - 240V, 50/60Hz
• Temperature of operating environment
5 - 35°C
• Power consumption
33W (With no audio input)
(36W maximum, 2W when in power-saving mode)
• Dimensions
338 (W) x 145 (D) x 313 (H) mm
• Weight
Approx. 3.9kg (approx. 3.3kg excluding stand)
(Excluding analog signal cable.)
2
■
■ DIMENSIONS (UNITS: MM)
■ ■
338
275
313
203 145
63
Analog signal cable: Approx. 1.8m
Audio cable: Approx. 1.8m
■
■ SIGNAL TIMINGS
■ ■
Display mode Hsync Vsync Dot frequency
VESA 640 x 480 31.5kHz 60Hz 25.175MHz
37.9kHz 72Hz 31.5MHz
37.5kHz 75Hz 31.5MHz
800 x 600 35.1kHz 56Hz 36.0MHz
37.9kHz 60Hz 40.0MHz
48.1kHz 72Hz 50.0MHz
46.9kHz 75Hz 49.5MHz
1024 x 768 48.4kHz 60Hz 65.0MHz
56.5kHz 70Hz 75.0MHz
60.0kHz 75Hz 78.75MHz
US text 720 x 400 31.5kHz 70Hz 28.3MHz
Power
Macintosh
series
• Recommended resolution is 1024 x 768.
• All are compliant only with non-interlaced.
• Frequencies for Power Macintosh are reference values.
• 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.
640 x 480 35.0kHz 66.7Hz 30.2MHz
832 x 624 49.7kHz 74.6Hz 57.3MHz
1024 x 768 60.2kHz 75Hz 80.0MHz
LL-T15S3 OUTLINE OF THE PRODUCT, NOMENCLATURE AND FUNCTION
1 – 1
■
■ THE ANALOG RGB INPUT CONNECTOR PIN
■ ■
(Mini D-sub connector with 15 pins)
12345
10
6789
1112131415
No. Function No. Function
1 Red video signal input 9 +5V
2 Green video signal input 10 GND
3 Blue video signal input 11 N.C.
4 GND 12 DDC data
5 GND 13 For Hsync signal input
6 For red video signal GND 14 For Vsync signal input
7 For green video signal GND 15 DDC clock
8 For blue video signal GND
■
■ 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 comp uter must conform to the VESA DPMS standard.
DPMS mode Screen
ON Display on 36W Yes Yes
STANDBY
SUSPEND Yes No
OFF No No
■
■ DDC (PLUG & PLAY)
■ ■
This monitor supports the VESA DDC (Display Data Channel) standard.
DDC is a signal standard for carry ing 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 va rieties of DDC due to the d ifferences between sys tems. This monitor works with DDC1 and DDC2B.
Display off 2W
Power
consumption
H-sync V-sync
No Y es
2. PRODUCT DESCRIPTION
1 2 3 4 5 66 7 8 9 1110
1. MENU button:
2. c/MODE button:
3. e d buttons:
4. Power button:
5. Power LED:
6. Speakers:
7. Power terminal:
8. Analog RGB input terminal:
9. Audio input terminal:
10. Security lock anchor:
11. Headphone terminal:
12. Ventilation openings:
This button is used to pop-up, select and close
the OSD (On Screen Display) Menu.
When the OSD Menu is displayed:
This button is used to select menu options.
When the OSD Menu is not displayed:
This button is used to set COLOR MODE.
When the OSD Menu is displayed:
These buttons are used to select an option or
adjust the value of the selected option.
When the OSD Menu is not displayed:
These buttons are used to adjust backlight
brightness and speaker volume.
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.
This LED is lit green when in use and orange
when in power-saving mode.
Audio entering via the monitor and the external
device connected to the monitor can be heard.
The analog signal cable is connected here.
The analog signal cable included should be
used.
A computer’s audio output terminal can be
connected here. The audio cable included
should be used.
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.
Headphones (commercially available) can be
connected here.
Note: Never block the ventilation openings as
this may lead to overheating inside the monitor
and result in malfunction.
12
LL-T15S3 OUTLINE OF THE PRODUCT, NOMENCLATURE AND FUNCTION
1 – 2
■
■ STANDING UP AND ADJUSTING THE MONITOR
■ ■
Caution:
• Pressur e from hands on the LCD panel could cause damage.
• Be careful not to allow your fingers to be pinched.
1) Standing up the monitor
1. Press down on the stand and lift up the top section of the monitor.
2) Angle adjustment
Press down on the stand and adjust it to a suitable viewing angle.
approx. 5 approx. 25
• Do not use the monitor when tilted back beyond approxim ately 25°.
The monitor may fall over leading to injury or malfunction.
• When raising the display section, move ment becomes harder in
the middle of travel.
Continue raising by applying more force at that point.
approx. 5
• Raise the display section until it stops. (when titled forward
approx. 5°)
2. Adjust to an easy to view angle.
approx. 5
approx. 25
Prohibited range
3) Folding up the monitor
1. Remove the cable.
2. Press down on the stand and gently fold back the monitor.
LL-T15S3 OUTLINE OF THE PRODUCT, NOMENCLATURE AND FUNCTION
1 – 3
CHAPTER 2. CONNECTION, ADJUSTMENT, OPERATION, AND FUNCTIONS
1. 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.
1-1. CONNECTING THE MONITOR TO A COMPUTER
Analog RGB terminal
(Mini D-sub 15 pin, 3 row)
Analog signal cable
• Paying attention to connector direction, firmly inse rt 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.
1-2. CONNECTION OF HEADPHONES
(COMMERCIALLY AVAILABLE)
Headphones (commercially available) can be connected.
Headphone terminal
Headphones
Note: When the headphones are connected, no sound can be heard
from the monitor speakers.
1-3. CONNECTING THE MONITOR TO A POWER
SOURCE
Power terminalo
AC outlet
Macintosh conversion adapter
Note: When connecting to a notebook, if the notebook computer's
screen is set so that it is displaying at the same time, the MSDOS screen may not be able to display properly. In this case,
change the settings so that only the monitor is displaying.
■■■■ Connect the accessory audio cable
When the accessory audio cable is connected to the audio output terminal of the computer, the sound of the connected computer is output
from the monitor speakers. You can also use the headphone jack of the
display.
Audio input terminal
Audio output terminal
Audio cable
Power cord
1-4. 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 the
computer
ON
Press power button
Note:
• If us ing 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.
LL-T15S3 CONNECTION, ADJUSTMENT, OPERATION, AND FUNCTIONS
2 – 1
1-5. TURNING THE POWER OFF
1. Turn the computer off.
2. Press the monitor's POWER button.
The Power LED will disappear.
Turn the
computer off
OFF
Press power button
If the monitor is not going to be used for a long period of time, be sure to
unplug it from the AC outlet.
1-6. INSTRUCTIONS FOR ATTACHING A VESA
COMPLIANT ARM
An arm or stand based on the VESA standard (comme rcially 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 75mm x 75mm between the screw holes on the
section to be attached.
• The arm m ust not fall off or break off after being attached to the
monitor.
1. Ensure that both the monitor and computer are switched off.
2. Unplug the power cord from the AC outlet.
3. Remove the analog signal cable and the audio cable from the computer.
4. Press down on the stand and gently fold back the monitor.
6. 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 8 mm ~ 10 mm protruding from the surface to be
attached. Using different screws could cause the monitor to fall o ff
or to be internally damaged.
8~10mm
Screw used to attach arm
Arm
Part of monitor to which arm is
attached
7. Connect the analog signal cable and power cord.
The stand may be removed.
1. Turn off the monitor, and remove the analog signal cable, the audio
cable and the power cord from the monitor.
2. Being careful not to damage the monitor, spread out a soft cl oth and
lay the monitor on it display-side down.
3. Remove the four screws and then remove the stand from the monitor.
• Be careful not to allow your fingers to be pinched.
• Do not overly bend the cable or add extension cords as this could
lead to malfunction.
5. Being careful not to damage the monitor, spread out a soft cloth and
lay the monitor on it display-side down.
LL-T15S3 CONNECTION, ADJUSTMENT, OPERATION, AND FUNCTIONS
• 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.
4. Follow instruction no.6 to attach the arm to the monitor, then connect the analog signal cable, the audio cable and the power cord.
2 – 2
2. ADJUSTMENT
2-1. ADJUSTMENT METHOD
1) Resetting all adjustment values
MENU
Press the above two buttons at same time, and while turn the power on.
2) ADJUSTMENT menu reset
MENU
3) Adjustment lock function
MENU
While pressing the MENU button, turn the power on.
4) Adjusting the backlight and speaker volume
5) Setting color mode
/MODE
6) Screen adjustment
MENU
ADJUSTMENT
AUTO
/MODE
Power ON
Press the two buttons at same time.
Power ON
buttons (Press the button and select "BRIGHT" or "VOLUME".)
button (STD, sRGB, VIVID)
/MODE
/MODE
/MODE
/MODE
/MODE
CLOCK
PHASE
H-POS
V-POS
buttons
buttons
buttons
buttons
MENU
GAIN CONTROL
/MODE
/MODE
AUTO
MENU
MENU
MENU
MODE SELECT
WHITE BALANCE
(COOL STD
/MODE
/MODE
/MODE
/MODE
/MODE
END
6) Version display (for service)
MENU d
Power ON
Display the software version.
Press the above two buttons at same time, and while turn the power
on.
BLACK LEVEL
CONTRAST
WARM USER)
OSD H-POSITION
OSD V-POSITION
SCALING
COLORS
LANGUAGE
7) A g ing (for service )
buttons
buttons
buttons
CONTRAST
(R/G/B)
/MODE
/MODE
/MODE
R-CONTRAST
G-CONTRAST
B-CONTRAST
buttons
buttons
buttons
buttons
buttons
buttons
buttons
/MODE
buttons
MENU
c /MODE e
Power ON
Press the d button, Screen color is changed as following.
Green 3 Blue 3 Gray 3 White 3 Light Red 3 Light Green 3
Pink 3 Red
When the test is terminate, Power off
<VERSION & CHECK SUM>
VERSION : 1.01 (200XXXXX)
CHECK SUM : OK XXXX
LL-T15S3 CONNECTION, ADJUSTMENT, OPERATION, AND FUNCTIONS
AGING TEST
> : SET
MENU : END
2 – 3
2-2. ADJUSTMENT ITEM LIST
BUTTON ITEM ADJUSTMENT DESCRIPTION
MENU MENU 1:
ADJUSTMENT
MENU 2:
GAIN CONTROL
MENU 1
4
MENU 2
4
MENU 3
4
MENU 4
4
MENU END
MENU 3:
WHITE BALANCE
MENU 4:
MODE SELECT
/MODE
c
e d
POWER OFF
MANUAL CLOCK 0~255 CLOCK:Adjust so that vertical flicker noise is not emit-
ted. (e d buttons)
PHASE 0~31 PHASE: Adjust so that horizontal flicker noise is not
H-POS 0~400
V-POS 0~100
emitted. (e d
H-POS (horizontal positioning) and
V-POS (vertical pos it ioning)
To center the screen image within the boundaries of
e d buttons)
e de d
the screen, adjust the left-right (H- POS) values and
the up-down (V-POS) values. (e d
AUTO Automatic screen adjustment
Options in the ADJUSTMENT Menu can be adjusted
automatically
(CLOCK, PHASE, H-POS V-POS).
MANUAL BLACK LEVEL 0~63
BLACK LEVEL: Total screen brightness can be adjusted
while watching the color pattern.
e d
buttons)
(
CONTRAST 0~100 CONTRAST: While watching the color pattern,
adjustments can be made so that all
graduations appear. (e d
AUTO GAIN CONTROL Menu
AUTO:Every menu option is automatically adjusted
using the Auto Gain Control function.
COOL • STD • WARM
(5 levels),
USER R • G • B: 0~100
WHITE BALANCE Menu
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
OSD H-POSITION
(OSD horizontal position)
OSD V-POSITION
(OSD vertical position)
SCALING
(Level of scaling)
LOW • HIGHT SCALING (Level of scaling)
The position of the OSD display can be moved to the
left and right. (e d buttons)
The position of the OSD displa y can be moved up an d
down. (e d buttons)
Adjusts the image to optimum sharpness when Screen
expansion is taken. (e dbuttons)
COLORS
260K (approx . 260,000)
Maximum display colors can be set. (e dbuttons)
16M (approx. 16.19million)
LANGUAGE 7 countrys
DEUTSCH, ENGL ISH,
ESPANOL, FRANCAIS,
ITALIANO, NETHERLAND, SVENSKA
LANGUAGE
Messages displayed on the scree n and OSD Menu
contents can be changed to the following languages.
Dutch, English, French, German, Spanish, Italian,
Swedish.
Select the item
sRGB, STD, VIVID Setting color mode when the ADJUSTMENT Menu is
not displayed.
STD: Displays image with the color tone results from
original scheme of liquid crystal panel.
sRGB: sRGB is international standard of color repre-
sentation 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 pri-
mary colors.
Volume: 0~100
Adjusting the backlight and speaker volume
Bright: 0~31
e d buttons)
e de d
e d buttons)
e de d
LL-T15S3 CONNECTION, ADJUSTMENT, OPERATION, AND FUNCTIONS
2 – 4
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