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.
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)
1 – 1
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.
1 – 2
LL-T1512W
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)
1 – 3
LL-T1512W
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
2 – 1
LL-T1512W
• 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.)
2 – 2
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