Read Sharp LL-T2020 (serv.man4) Service Manual online
LL-T2020
CONNECTION, ADJUSTMENT, OPERATION, AND FUNCTIONS
2 – 3
1-3. 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.
current up to 500 mA.
Upstream (1 port)
This enables connection of a USB compatible computer or USB hub.
Note:
• If a USB cable is required, please use the one included.
• Before connecting, ensure that the shape of the USB cable con-
nector 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 acti-
vated. To ascertain a certain device's USB compatibility, please
contact the manufacturer of the device.
contact the manufacturer of the device.
1-4. Turning the power on
1.
Turn on the main power of the monitor.
• When switching the main power switch on and off, always wait for
an interval of at least 5 seconds. Rapid switching may result in
malfunction.
malfunction.
2.
Press the monitor's POWER button.
The power LED will light up orange.
3. Turn on the computer.
When a signal is input from the computer, the power LED lights up
green, and the screen is displayed (After power is turned on, it may
take a little time until the screen is displayed.)
• If the input terminal to which the computer is connected has not
been selected, the screen will not be displayed. If necessary, per-
form input terminal switching. (right column)
Notes: (when using an analog signal)
• If using the monitor for the first time or after having changed the
system settings during use, perform an automatic screen adjust-
ment.
ment.
• When connecting to a notebook, if the notebook computer's screen
is set so that it is displaying at the same time, the MS-DOS screen
may not be able to display properly. In this case, change the set-
tings so that only the monitor is displaying.
1-5. Changing between input terminals
Use the INPUT button to switch between signal input terminals.
When not using a 2-input cable
When using a 2-input cable
When selecting the input terminal connected to the 2-input cable, the
input terminal [INPUT-1] or [INPUT-2] is displayed, followed by the sym-
bol for analog [-A] or digital [-D].
(Example when connecting the 2-input cable to input terminal 2 [INPUT-
(Example when connecting the 2-input cable to input terminal 2 [INPUT-
2])
Note: When there is no input signal, [NO SIGNAL] is displayed.
Upstream
Downstream
USB cable
Main power switch
ON
Turn on the
computer power
supply.
computer power
supply.
Press power button
INPUT-1
< >
INPUT-2
< >
INPUT
Select [INPUT-1]
Select [INPUT-2]
The input signal type (ANALOG/DIGITAL) is
displayed within angle brackets < >.
displayed within angle brackets < >.
INPUT-1
< >
INPUT
INPUT
INPUT
<ANALOG>
or <DIGITAL>
or <DIGITAL>
INPUT-2-A
<ANALOG>
INPUT-2-D
<DIGITAL>
Select [INPUT-1]
Select [INPUT-2]
(analog)
Select [INPUT-2]
(digital)
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