DOWNLOAD Sharp LL-T1811W (serv.man12) Service Manual ↓ Size: 752.85 KB | Pages: 30 in PDF or view online for FREE

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.

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.)

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.

If the monitor will not be used for a long period of
time, be sure to remove the power plug from the AC
outlet.

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.

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.

No image appears on the monitor (Power LED is not
lit)
-

Are the AC adapter and power cord connected
properly? (p. 12)

No image appears on the monitor (Power LED is lit)
-

Is the computer connected properly? (p. 13)

Is the computer turned on?

Is the signal’s input terminal switched to the
correct one? (p. 14)

Does the computer's signal timing correspond to
monitor specifications? (p. 27)

Is the computer in power-saving mode?

Control buttons do not work
-

Is the adjustment lock on? (p. 18)

Only VGA image is displayed
-

Does the Windows display timing setting meet
monitor specifications? Refer to the monitor
signal timings (p. 27) and set to appropriate
timing.

The image appears distorted
-

Does the computer's signal timing correspond to
monitor specifications? (p. 27)

If you are using the analog signal, perform
automatic adjustment. (p. 19)

If you can change the frequency on the computer
you are using, change the values to a low
frequency count.

Dimensions (Units: mm)

LCD display

18.1 inches (46 cm measured diagonally)
Super-V and Anti Glare Low Reflection TFT LCD
module

Resolution (max.)

SXGA 1280 x 1024 pixels

Displayable colors (max.)

16.77 million colors (8 bit)

Brightness (max.)

200cd/m

2

Dot pitch

0.2805(H)  0.2805(V) mm

Contrast ratio

350:1

Angle of visibility

Left-right 150°; Up-down 150°

Screen display size

Horizontal 359 mm x Vertical 287.2 mm

Video signal

Analog: Analog RGB (0.7Vp-p) [75

Ω]

Digital:

DVI standard based on 1.0

Sync signal

Separate Sync (TTL level: +/-), Sync on
Green, Composite Sync (TTL level: +/-)

Expansion compensation

Digital screening (enlargement of display to
correct VGA/SVGA/XGA)
[1:1, expansion (fixed aspect ratio), expansion
(total screen surface)]

Plug & Play

VESA:

DDC1/DDC2B compatible

Power management

VESA:

based on DPMS

DVI:

based on DMPM

Input signal terminal

Analog:

15 pin mini D-sub (3 rows)

Digital / Analog:29 pin DVI-I

USB hub function

1 upstream port, 2 downstream ports (bus-
powered hub based on USB standard Rev 1.1)

Screen tilt

Upward 0° -30°; downward 0° - 5°

Screen swivel

90° from left through right

Power supply

AC100-240V, 50/60Hz (Use special AC adapter,
type NL-A03E of Sharp Corporation.)

Temperature of operating environment

5 - 35°C

Power consumption

Maximum 44W (3.2W when in power-saving
mode)
(Use special AC adapter.)

Dimensions (W x D x H)

443 mm x 218 mm x 465 mm

Weight (excluding AC adapter)

Approx. 10.1 kg
Display area only, approx. 7.8kg

Length of analog signal cable: approx. 2.0 m*
Length of USB cable included: approx. 1.8 m

*Length from analog signal input terminal

Special AC adapter

Approx. 2.0 m

Approx. H 120 mm x D 60 mm x H 35 mm

Digital signal cable (NL-C01E):

Approx. 2.0 m

Analogue signal cable (NL-C02E): Approx. 2.0 m

5

1

2

3

4

10

6

7

8

9

15

11

12

13

14

(Mini D-sub connector with 15 pins)

Number

Function

1

Red video signal input

2

Green video signal input

3

Blue video signal input

4

GND

5

GND

6

For red video signal GND

7

For green video signal GND

8

For blue video signal GND

9

DDC/VCC

10

GND

11

N.C.

12

DDC data

13

For Hsync signal input

14

For Vsync signal input

15

DDC clock

640x480

640x400
720x400
800x600

1024x768

1152x864
1280x960

1280x1024

720x400
640x480
832x624

1024x768
1152x870
1024x768

1152x900

1280x1024

31.5kHz
37.9kHz
37.5kHz
43.3kHz
37.9kHz
37.9kHz
35.1kHz
37.9kHz
48.1kHz
46.9kHz
53.7kHz
48.4kHz
56.5kHz
60.0kHz
68.7kHz
67.5kHz
60.0kHz
64.0kHz
80.0kHz
31.5kHz
35.0kHz
49.7kHz
60.2kHz
68.7kHz
48.3kHz
53.6kHz
56.6kHz
61.8kHz
71.8kHz
71.7kHz
81.1kHz

60Hz
72Hz
75Hz
85Hz
85Hz
85Hz
56Hz
60Hz
72Hz
75Hz
85Hz
60Hz
70Hz
75Hz
85Hz
75Hz
60Hz
60Hz
75Hz
70Hz

66.7Hz
74.6Hz

75Hz
75Hz
60Hz
66Hz
70Hz
66Hz

76.2Hz
67.2Hz

76Hz

25.175MHz

31.5MHz
31.5MHz
36.0MHz
31.5MHz
35.5MHz
36.0MHz
40.0MHz
50.0MHz
49.5MHz

56.25MHz

65.0MHz
75.0MHz

78.75MHz

94.5MHz

108.0MHz
108.0MHz
108.0MHz
135.0MHz

28.3MHz
30.2MHz
57.3MHz
80.0MHz

100.0MHz
64.13MHz

70.4MHz

74.25MHz
94.88MHz

108.23MHz
117.01MHz
134.99MHz

All are compliant only with non-interlaced.

Frequencies for Power Macintosh and the Sun
Ultra series 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.

640x480

800x600

1024x768

1152x864
1280x960

1280x1024

720x400

31.5kHz
37.9kHz
37.5kHz
37.9kHz
48.1kHz
46.9kHz
48.4kHz
56.5kHz
60.0kHz
67.5kHz
60.0kHz
64.0kHz
31.5kHz

60Hz
72Hz
75Hz
60Hz
72Hz
75Hz
60Hz
70Hz
75Hz
75Hz
60Hz
60Hz
70Hz

25.175MHz

31.5MHz
31.5MHz
40.0MHz
50.0MHz
49.5MHz
65.0MHz
75.0MHz

78.75MHz
108.0MHz
108.0MHz
108.0MHz

28.3MHz

All are compliant only with non-interlaced.

A computer with an output terminal conforming to
DVI (DVI-D24 pin or DVI-I29 pin) and with SXGA
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.

The monitor is based on the VESA DPMS*1 and the
DVI DMPM*2 standards.
To activate the monitor's Power Management func-
tion, both the video card and the computer must
conform to the VESA DPMS standard and the DVI
DMPM standard.

*1 DPMS: Display Power Management Signalling

*2 DMPM: Digital Monitor Power Management

(DVI-I connector with 29 pins)

No. Function

No. Function

1

TMDS data 2-

16

Hot plug detection

2

TMDS data 2+

17

TMDS data 0-

3

TMDS data 2/4 shield

18

TMDS data 0+

4

N.C.

19

TMDS data 0/5 shield

5

N.C.

20

N.C.

6

DDC clock

21

N.C.

7

DDC data

22

TMDS clock shield

8

23

TMDS clock +

9

TMDS data 1-

24

TMDS clock -

10 TMDS data 1+

C1

Analogue red image signal

11 TMDS data 1/3 shield

C2

Analogue green image signal

12

N.C.

C3

Analogue blue image signal

13

N.C.

C4

14

+5V

C5

Analogue GND

15 GND

DPMS mode

Screen

Power

H-sync V-sync

consumption

ON

Display on

44W

Yes

Yes

STANDBY

No

Yes

SUSPEND

Display off

3.2W

Yes

No

OFF

No

No

DMPM mode

Screen

Power

consumption

ON

Display on

44W

OFF

Display off

3.2W

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 differ-
ences between systems. This monitor works with
DDC1 and DDC2B.

Analogue vertically synchronised
signal

Analogue horizontally
synchronised signal