Sharp LL-T1820 (serv.man9) Service Manual ▷ View online
PC-UM10M
LL-T1820-H/B OUTLINE OF THE PRODUCT, NOMENCLATURE AND FUNCTION
1 – 3
Power management
The monitor is based on the VESA DPMS*
1
and the DVI DMPM*
2
stan-
dards.
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.
*1 DPMS: Display Power Management Signalling
*2 DMPM: Digital Monitor Power Management
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 mon-
itor.
There are many varieties of DDC due to the differences between sys-
tems. This monitor works with DDC2B.
2. TECHNICAL SPECIFICATIONS
*
Specifications and a part of the appearance are subject to change without notice.
PRODUCT DESCRIPTION
DPMS mode
Screen
Power
consumption
H-sync
V-sync
ON
Display on
51W
Yes
Yes
STANDBY
Display off
2.9W
No
Yes
SUSPEND
Yes
No
OFF
No
No
DPMS mode
Screen
Power consumption
ON
Display on
51W (USB OFF)/57W (USB ON)
OFF
Display off
2.9W
Item
MIN
TYP
MAX
Unit
Power supply voltage
AC
90
100
110
V
Working temperature range
+5
.
+35
°C
Storing temperature range
-20
.
+60
°C
Humidity range
20
.
85
%RH
Visual angle range
Vertical (CR
u
10)
m
70
m
85
.
Temperature
Horizontal (CR
u
10)
m
70
m
85
.
Temperature
Contrast ratio(CR)
(
θ
= 0°)
.
400
.
.
Response speed
Leading (
τ
r)
.
20
.
ms
Trailing (
τ
d)
.
5
.
ms
Screen white chromaticity
(X)
0.278
0.308
0.333
.
(Y)
0.290
0.320
0.350
.
White surface luminance
(Y
L
)
180
220
.
cd/m
2
Module model number
LQ181E1LZ30
1
2
3
4
5
6
7
9
11
12
10
13
8
1. INPUT button:
To switch between the signals input termi-
nals. (Input terminal 1
0
Input terminal 2)
2. MENU button:
This button is used to pop-up, select and
close the OSD (On Screen Display) Menu.
3. SELECT button:
This button is used to select menu options
when the OSD Menu is displayed.
when the OSD Menu is displayed.
4.
e d
buttons:
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 .
brightness .
5. Power button
6. Power LED:
This LED is lit green when in use and orange
when in power-saving mode.
7. USB port (downstream: 2 ports)
PC-UM10M
LL-T1820-H/B OUTLINE OF THE PRODUCT, NOMENCLATURE AND FUNCTION
1 – 4
HEIGHT ADJUSTMENT, ANGLE ADJUSTMENT,
ROTATION (LONG HEIGHT/WIDTH)
ROTATION (LONG HEIGHT/WIDTH)
Caution: • Pressure from hands on the LCD panel could cause dam-
age.
• Be careful not to allow your fingers to be pinched.
Height adjustment
Adjust to an easy to view height.
Angle adjustment
Adjust to an easy to view angle.
Rotation (long height/width)
The display can be rotated for a long height or width to suit the dis-
played content.
played content.
• Before rotating, move the display to its uppermost position. If the dis-
play is rotated while it is set low, it will contact the stand and could
lead to damage.
• The display can only be rotated through a range of 90°. Applying
excessive force may cause malfunction.
• Do not apply excessive force when the cable is connected.
To set to long height
Gently turn in the clockwise direction (to 90°).
To set to long width
Gently turn in the counterclockwise direction (to 90°).
Note: The orientation of the display can be changed using Pivot Soft-
ware.
8. USB port (upstream: 1 port)
9. DVI-I input terminal:
The computers digital RGB output terminal or
analogue RGB output terminal can be con-
analogue RGB output terminal can be con-
nected here.
For a digital signal input: It can be connected
to a computer with a DVI-compatible output
to a computer with a DVI-compatible output
terminal (DVI-D24 pin or DVI-I29 pin) and
which has SXGA output ability. Depending on
the computer to be connected, correct display
the computer to be connected, correct display
may or may not be possible.
10. Security lock anchor: By connecting a security lock (purchased
separately) to the security lock anchor, the
monitor is fixed so that it cannot be trans-
ported.
The security slot works in conjunction with
Kensington Micro Saver Security Systems.
11. Power terminal
12. Main power switch
13. Ventilation openings: Note: Never block the ventilation openings as
this may lead to overheating inside the moni-
tor and result in malfunction.
80mm
30
5
45
45
PC-UM10M
LL-T1820-H/B CONNECTION, ADJUSTMENT, OPERATION, AND FUNCTIONS
2 – 1
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 com-
puter are switched off.
• Be careful not to overly bend the cable or add extension
cords as this could lead to malfunction.
Cable storage
If necessary, excess cable can be housed in the stand.
1.
Remove the cover.
Gently pull the top of the cover towards yourself.
Gently pull the top of the cover towards yourself.
2.
Run cable along the back of the stand.
Pass cable in front of the stand, and then bring it through the back.
• If the display is to be rotated, first house the cables with the dis-
play in the long height position, so there is sufficient length when
the display is turned.
3.
Refit the cover.
Be careful not to pinch the cable.
• If the cover is hard to refit, do not force it. Check whether cables
are trapped.
Caution: If the display is to be rotated, first house the cable, and then
check while gently turning the display. If it cannot be turned,
rehouse the cable with sufficient slack. (If there is insufficient
cable length, rotation will be impossible. Forcing rotation may
cable length, rotation will be impossible. Forcing rotation may
cause cable disconnection.)
CONNECTING THE MONITOR TO A COMPUTER
Connecting the monitor to a computer using the accessory signal cable.
• This monitor has two input terminals to enable connection to two
computers. The monitor comes with one analog signal and one digital
signal cable. If both connections are analog, or both are digital, you
will need another signal cable sold separately.
will need another signal cable sold separately.
• Digital signal cable: model name NL-C01E
• Analog signal cable: model name NL-C02E
Analog RGB connection
Using the accessory analog signal cable, connect to the analog RGB
output terminal of the computer.
• Paying attention to connector direction, firmly insert 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 (to be purchased separately) to the ana-
log signal cable.
Input terminal 1 and 2
You can connect to
either side.
You can connect to
either side.
Analog RGB output
terminal
terminal
Analog signal cable
Macintosh conversion adapter
PC-UM10M
LL-T1820-H/B CONNECTION, ADJUSTMENT, OPERATION, AND FUNCTIONS
2 – 2
Digital RGB connection
Using the accessory digital signal cable, connect with the digital RGB
output terminal of the computer.
output terminal of the computer.
• For digital RGB connection, the monitor has an input for connecting
to a computer with a DVI-compatible output connector (DVI-D 24 pin
or DVI-I 29 pin) and SXGA output capability. (Depending on the type
of computer to be connected, the display may not work correctly.)
of computer to be connected, the display may not work correctly.)
• Paying attention to connector direction, firmly insert the signal
cable to terminal, and then tighten the screws at both sides.
Set the monitor as follows when establishing a digital connection with a
Power Mac using an ADC-DVI adapter made by Belkin. (Operation has
Power Mac using an ADC-DVI adapter made by Belkin. (Operation has
been checked with the Power Mac G4 M7627J/A)
• Perform settings with the Power Mac power supply off.
1.
After connecting the power cord, turn on the monitor’s main power.
2.
Press the
e
button and
d
button simultaneously, and while doing
this press the POWER button (i.e. turn the power on).
3.
Set the input terminal to which the Belkin ADC-DVI adapter is con-
nected to ON.
Use the SELECT button to select [INPUT1] or [INPUT2], and use
the
e d
buttons to select [ON] and [OFF].
• Do not set to [ON] if you are not using a Belkin ADC-DVI adapter,
as this may result in incorrect display.
4.
Press the power button, and turn off the monitor power.
This completes setting.
CONNECTING THE MONITOR TO A POWER SOURCE
CONNECTING A USB DEVICE
This monitor is equipped with a USB standard (Rev. 1.1) self-powered
hub.
Downstream (2 ports)
Each of these ports enables connection of a USB device with working
current up to 500 mA.
Upstream (1 port)
This enables connection of a USB compatible computer or USB hub.
Notes: • If a USB cable is required, please use the one included.
• Before connecting, ensure that the shape of the USB cable
connector is correct.
• For information regarding the USB function (such as set-up)
please refer to the operation manual of the computer to be
connected.
• Some computers, OS and other devices may not be able to
be activated. To ascertain a certain device’s USB compatibil-
ity, please contact the manufacturer of the device.
Input terminal 1 and 2
You can connect to
either side.
You can connect to
either side.
Digital RGB output
terminal
terminal
Digital signal cable
Power terminal
AC outlet
Power cord
Upstream
USB cable
Downstream
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