Sharp LLTE15G1 Schematic
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SERVICE MANUAL
MODEL
CONTENTS
CODE : 00Z
LLT15G1SME
LCD MONITOR
LL-T15G1
LL-E15G1
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.
CONNECTORSIGNALNAME• BLOCK DIAGRAM •
CIRCUIT DIAGRAM • PWB LAYOUT
. . . . . . . . . . . . . . . . . . . .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 servic e only.
The contents are subject to change without once.
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 u 768 pixels
• Displayable colors (max.)
16.19 million colors (6 bit + FRC2bit)
• Brightness (max.)
260cd/m
• Dot pitch
0.297(H) u 0.297(V) mm
• Contrast ratio
350 : 1
• Angle of visibility
Left-right 160° ; Up-down 150°
• Screen display size
Horizontal 304.1 mm u 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 of display to correct VGA/SVGA)
• Plug & Play
VESA: DDC1/DDC2B compatible
• Power management
VESA: Based on DPMS
• Input signal terminal
15 pin mini D-sub (3 rows)
• Screen tilt
Upward approx. 0° - 25° ; downward approx. 0° - 5°
• Power supply
AC100-240V, 50/60Hz
(Use special AC adapter, type NL-A60J of Sharp Corporation.)
• Temperature of operating environment
5 - 35°C
• Power consumption
Maximum 35W (3W when in power-saving mode)
(Use special AC adapter.)
• Dimensions (W u D u H)
339 mm u 187 mm u 322 mm
• Weight
Approx. 3.4 kg (Excluding AC adapter and RGB signal cable.)
2
■■■■DIMENSIONS (Units: mm)
47
339
283
322
187
RGB signal cable: Approx.1.8m
Special AC adapter
Approx.1.5m
Approx. W 124mm u D 62 mm u H 36mm
Relevant signal timings
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
• 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 to be compatible with the monitor.
• If the monitor is not receiving any signal (synch signal), [NO SIGNAL]
will appear.
640 u 4 80 35.0kHz 66.7Hz 30.2MHz
832 u 6 24 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)
187
Dot frequency
(MHz)
LL-T15G1/E15G1 OUTLINE OF THE PRODUCT, NOMENCLATURE AND FUNCTION
1 – 1
The connector pin Power management
The monitor is based on the VESA DPMS.
To activate the monitor’s Power Management function, both the video
10
15 11121314
(Mini D-sub connector with 15 pins)
25134
6789
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 H-sync signal input
6 For red video signal GND 14 For V-sync signal input
7 For green video signal GND 15 DDC clock
8 For blue video signal GND
card and the computer must conform to the VESA DPMS standard.
DPMS: Display Power Management Signalling
DPMS mode Screen
ON Display on 35W Yes Yes
STANDBY Display off 3W No Yes
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 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.
Power
consumption
H-sync V-sync
2. TECHNICAL SPECIFICATIONS
Item MIN TYP MAX Unit
Power supply voltage AC 90 100 110 V
DC 11.4 12.0 12.6 V
Working temperature range 0 . +40 °C
Storing temperature range -20 . +60 °C
Humidity range 10 . 90 %RH
Visual angle range Vertical (CR u 5) . 150 . Temperature
Horizontal (CR u 5) . 160 . Temperature
Contrast ratio (CR) (θ = 0°) . 400 ..
Response speed Leading (tr) . 625ms
Trailing (td) . 19 50 ms
Screen white chromaticity (X) 0.273 0.303 0.333 .
(Y) 0.283 0.313 0.343 .
White surface luminance (Y
) . 260 . cd/m
L
Module model number
*Specifications and a part of the appearance are subject to change without notice.
2
LL-T15G1/E15G1 OUTLINE OF THE PRODUCT, NOMENCLATURE AND FUNCTION
1 – 2
■■■■NOMENCLATURE AND FUNCTION
Control
Panel
MENU SELECT
2
1
345
1 MENU button
This button is used to pop-up, select and close the On Screen Display (OSD) Menu.
2 SELECT button
This button is used to selects menu options when the OSD Menu is
displayed.
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 POW ER LED
The LED is lit green when in use and orange when in power-saving
mode.
5 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.
6 Power terminal
The AC adapter is connected here.
7 RGB input terminal
The RGB signal cable is connected here.
8 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.
9 Ventilation openings
Note: Never block the ventilation openings as this may lead to
overheating inside the monitor and result in malfunction.
67 8
■■■■STANDING UP AND ADJUSTING THE MONITOR
CAUTION!
Caution: Pressure from hands on the LCD panel could cause damage.
Standing up the monitor
Press down on the stand and lift up the top section of the monitor.
9
• Be careful not to pinch your fingers.
• When raising the display section, movement becomes harder in the
middle of travel. Continue raising by applying more force at that
point.
• When the monitor is used with an arm mounting, movement
becomes stiffer to keep the display section from tipping over. This
is not a malfunction.
LL-T15G1/E15G1 OUTLINE OF THE PRODUCT, NOMENCLATURE AND FUNCTION
1 – 3
Adjusting the monitor
Press down on the stand and adjust it to a suitable viewing angle.
5
approx. approx.
25
Folding up the monitor
1. Remove the AC adapter and the RGB signal cable.
2. Press down on the stand and gently fold back the monitor.
• Be careful not to pinch your fingers.
• Do not use the monitor when tilted back beyond approximately
25°.The monitor may fall over leading to injury or malfunction.
x.5
appro
approx.25
Prohibited range
LL-T15G1/E15G1 OUTLINE OF THE PRODUCT, NOMENCLATURE AND FUNCTION
1 – 4
CHAPTER 2. CONNECTION, ADJUSTMENT, OPERATION AND FUNCTIONS
1. CONNECTION
1-1. CONNECTING THE MONITOR TO A COMPUTER
(PC ETC.)
When connecting, ensure that both the monitor and computer are
switched off.
Note: Do not overly bend the cable or add extension cords as this could
lead to malfunction.
Firmly insert the analog RGB terminal
(mini D-sub 15 pin with 3 rows) then
tighten the screws each side.
RGB 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 RGB signal cable.
Macintosh conversion adapter
RGB signal cab le
After connecting the adapter, tighten the
screws on each side to fix into place.
1-2. CONNECTING THE MONITOR TO A POWER
SOURCE
Before connecting, first turn off the monitor’s main power switch.
Note: Do not overly bend the cable or add extension cords as this could
lead to malfunction.
1. Connect the AC adapter to the monitor’s power terminal
Power terminal
AC adapter
2. Attach the power cord to the AC adapter and place the power plug
into the AC terminal
AC terminal
Power cord
2. POWER ON/OFF
2-1. 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
which monitor is
connected
ON
Press power button
Notes: • If using the monitor for the first time or after having changed
the system setting during use, perform an automatic screen
adjustment.
• Depending on the co mput er or O S, it may be nec ess ar y to use
the computer to install monitor set-up i nformation. If so, fo llow
the steps below to install the monitor set-up information.
2-2. 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
OFF
Press power button
2-3. 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 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.
• When 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 Installing
the ICC profile on page 15.
• When using the ICC profile, please set the [WH ITE BALANC E] to [ ST D].
LL-T15G1/E15G1 CONNECTION, ADJUSTMENT, OPERATION AND FUNCTIONS
2 – 1
■Installing set-up information
For Windows95
Installing monitor set-up information into Windows95.
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.
For Windows98
Installing monitor set-up information into Windows98, 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 appeared:
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.
For Windows2000
Installing monitor set-up information into Windows2000, 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 appeared:
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.
LL-T15G1/E15G1 CONNECTION, ADJUSTMENT, OPERATION AND FUNCTIONS
2 – 2
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