Sharp LC-42X20E (serv.man10) User Manual / Operation Manual ▷ View online
Connecting a PC
C1 C2 C3 C4 P1 P2 P3 P4
RS-232C port specifications
PC Control of the TV
• When a programme is set, the TV can be controlled from
the PC using the RS-232C terminal. The input signal
(PC/video) can be selected, the volume can be adjusted
and various other adjustments and settings can be made,
enabling automatic programmed playing.
(PC/video) can be selected, the volume can be adjusted
and various other adjustments and settings can be made,
enabling automatic programmed playing.
• Use an RS-232C cable cross-type (commercially available)
for the connections.
NOTE
• This operation system should be used by a person who is
• This operation system should be used by a person who is
accustomed to using PCs.
Communication conditions
Set the RS-232C communications settings on the PC
to match the TV’s communications conditions. The
TV’s communications settings are as follows:
Set the RS-232C communications settings on the PC
to match the TV’s communications conditions. The
TV’s communications settings are as follows:
Baud rate:
9,600 bps
Data length:
8 bits
Parity bit:
None
Stop bit:
1 bit
Flow control:
None
Communication procedure
Send the control commands from the PC via the RS-
232C connector.
The TV operates according to the received command
and sends a response message to the PC.
Do not send multiple commands at the same time.
Wait until the PC receives the OK response before
sending the next command.
Make sure to send “A” with the carriage return and
confirm that “ERR” returns before operating.
Send the control commands from the PC via the RS-
232C connector.
The TV operates according to the received command
and sends a response message to the PC.
Do not send multiple commands at the same time.
Wait until the PC receives the OK response before
sending the next command.
Make sure to send “A” with the carriage return and
confirm that “ERR” returns before operating.
Command format
Command 4-digits: Command. The text of four
characters.
Parameter 4-digits: Parameter 0 – 9, blank, ?
characters.
Parameter 4-digits: Parameter 0 – 9, blank, ?
0
0
5
5
1
0
0
–
3
0
0
0
0
9
0
?
?
?
?
?
O
K
E
R
R
When “?” is input for some commands, the present
setting value responds.
setting value responds.
Response code format
After sending the return code (0DH), make sure to send
line feed (0AH) as well.
line feed (0AH) as well.
Normal response
Problem response (communication error or incorrect
command)
command)
Parameter
Input the parameter values, aligning left, and fill with
blank(s) for the remainder. (Be sure that four values are
input for the parameter.)
When the input parameter is not within an adjustable
range, “ERR” returns. (Refer to “Response code
format”.)
Input the parameter values, aligning left, and fill with
blank(s) for the remainder. (Be sure that four values are
input for the parameter.)
When the input parameter is not within an adjustable
range, “ERR” returns. (Refer to “Response code
format”.)
Return code (0DH)
Return code (0DH)
35
RS-232C serial control cable
(cross type)
(cross type)
Eight ASCII codes
eCR
Command 4-digits
Parameter 4-digits Return code
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Connecting a PC
PC compatibility chart
Resolution
Horizontal
Frequency
Vertical
Frequency
Analogue (D-
Sub)
Digital (HDMI)
VESA Standard
VGA
640
g 480
31.5 kHz
60 Hz
✔
✔
✔
SVGA
800
g 600
37.9 kHz
60 Hz
✔
✔
✔
XGA
1024
g 768
48.4 kHz
60 Hz
✔
✔
✔
WXGA
1360
g 768
47.7 kHz
60 Hz
✔
✔
✔
SXGA
1280
g 1024
64.0 kHz
60 Hz
✔
✔
✔
SXGA+
1400
g1050
65.3 kHz
60 Hz
✔
✔
NOTE
• This TV has only limited PC compatibility, correct operation
• This TV has only limited PC compatibility, correct operation
can only be guaranteed if the video card conforms exactly
to the VESA 60Hz standard. Any variations from this
standard will result in picture distortions.
to the VESA 60Hz standard. Any variations from this
standard will result in picture distortions.
VGA, SVGA, XGA, WXGA, SXGA and SXGA+ are
registered trademarks of International Business
Machines Corporation.
registered trademarks of International Business
Machines Corporation.
CONTROL ITEM
COMMAND
PARAMETER
CONTROL CONTENTS
POWER SETTING
P
O W R
0
_
_
_
POWER OFF
INPUT SELECTION A
I
T
G
D
_
_
_
_
INPUT SWITCHING (TOGGLE)
I
T
V
D
_
_
_
_
TV (CHANNEL FIXED)
I
D
T
V
_
_
_
_
DTV (CHANNEL FIXED)
I
A
V
D
*
_
_
_
EXT1 – 8 (1 – 8)
CHANNEL
D
C
C
H
*
*
_
_
TV DIRECT CHANNEL (1 – 99)
C
H
U
P
_
_
_
_
CHANNEL UP
C
H
D W
_
_
_
_
CHANNEL DOWN
D
T
V
D
*
*
*
_
DTV DIRECT CHANNEL (1 to 999)
D
T
U
P
_
_
_
_
DTV CHANNEL UP
D
T
D W
_
_
_
_
DTV CHANNEL DOWN
INPUT SELECTION B
I
N
P
1
0
_
_
_
EXT1 (Y/C)
I
N
P
1
1
_
_
_
EXT1 (CVBS)
I
N
P
1
2
_
_
_
EXT1 (RGB)
I
N
P
2
0
_
_
_
EXT2 (Y/C)
I
N
P
2
1
_
_
_
EXT2 (CVBS)
I
N
P
2
2
_
_
_
EXT2 (RGB)
I
N
P
3
0
_
_
_
EXT3
I
N
P
3
1
_
_
_
EXT3 (S-VIDEO)
I
N
P
3
2
_
_
_
EXT3 (VIDEO)
AV MODE SELECTION
A
V
M D
0
_
_
_
TOGGLE
A
V
M D
1
_
_
_
STANDARD
A
V
M D
2
_
_
_
MOVIE
A
V
M D
3
_
_
_
GAME
A
V
M D
4
_
_
_
USER
A
V
M D
5
_
_
_
DYNAMIC (Fixed)
A
V
M D
6
_
_
_
DYNAMIC
A
V
M D
7
_
_
_
PC
A
V
M D
8
_
_
_
xvYCC
A
V
M D
?
?
?
?
1 to 8
VOLUME
V
O
L
M
*
*
_
_
VOLUME (0 – 60)
CONTROL ITEM
COMMAND
PARAMETER
CONTROL CONTENTS
POSITION
H
P
O
S
*
*
*
_
H-POSITION (AV/PC)
V
P
O
S
*
*
*
_
V-POSITION (AV/PC)
C
L
C
K
*
*
*
_
CLOCK (0 - 180)
P
H
S
E
*
*
_
_
PHASE (0 - 40)
WIDE MODE
W
I
D
E
0
_
_
_
TOGGLE (AV)
W
I
D
E
1
_
_
_
NORMAL (AV)
W
I
D
E
2
_
_
_
ZOOM 14:9 (AV)
W
I
D
E
3
_
_
_
PANORAMA (AV)
W
I
D
E
4
_
_
_
FULL (AV)
W
I
D
E
5
_
_
_
CINEMA 16:9 (AV)
W
I
D
E
6
_
_
_
CINEMA 14:9 (AV)
W
I
D
E
7
_
_
_
NORMAL (PC)
W
I
D
E
8
_
_
_
CINEMA (PC)
W
I
D
E
9
_
_
_
FULL (PC)
W
I
D
E
1
0
_
_
DOT by DOT (AV/PC)
W
I
D
E
1
1
_
_
UNDERSCAN (AV)
MUTE
M U
T
E
0
_
_
_
TOGGLE
M U
T
E
1
_
_
_
MUTE ON
M U
T
E
2
_
_
_
MUTE OFF
SURROUND
A
C
S
U
0
_
_
_
SURROUND TOGGLE
A
C
S
U
1
_
_
_
SURROUND ON
A
C
S
U
2
_
_
_
SURROUND OFF
AUDIO CHANGE
A
C
H
A
_
_
_
_
TOGGLE
SLEEP TIMER
O
F
T
M
0
_
_
_
OFF
O
F
T
M
1
_
_
_
SLEEP TIMER 30 MIN
O
F
T
M
2
_
_
_
SLEEP TIMER 1 HOUR
O
F
T
M
3
_
_
_
SLEEP TIMER 1 HOUR 30 MIN
O
F
T
M
4
_
_
_
SLEEP TIMER 2 HOUR
O
F
T
M
5
_
_
_
SLEEP TIMER 2 HOUR 30 MIN
TEXT
T
E
X
T
0
_
_
_
TEXT OFF
T
E
X
T
1
_
_
_
TEXT ON (TOGGLE)
D
C
P
G
*
*
*
_
DIRECT PAGE JUMP (100 – 899)
RS-232C command list
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Appendix
Troubleshooting
Problem
Possible Solution
• No power.
• Check if you pressed
B on the remote control unit.
If the indicator on the TV lights up red, press
B.
• Is the AC cord disconnected?
• Check if you pressed
• Check if you pressed
a on the TV.
• Unit cannot be operated.
• External influences such as lightning, static electricity, etc., may cause improper
operation. In this case, operate the unit after first turning the power off, or
unplugging the AC cord and re-plugging it in after 1 or 2 minutes.
unplugging the AC cord and re-plugging it in after 1 or 2 minutes.
• Remote control unit does not
operate.
• Are batteries inserted with polarity (
e, f) aligned?
• Are batteries worn out? (Replace with new batteries.)
• Are you using it under strong or fluorescent lighting?
• Is a fluorescent light illuminated onto the remote control sensor?
• Are you using it under strong or fluorescent lighting?
• Is a fluorescent light illuminated onto the remote control sensor?
• Picture is cut off.
• Is the image position correct?
• Are screen mode adjustments (WIDE MODE) such as picture size made correctly?
• Are screen mode adjustments (WIDE MODE) such as picture size made correctly?
(Pages 29 and 33)
• Strange colour, light colour, or
dark, or colour misalignment.
• Adjust the picture tone.
• Is the room too bright? The picture may look dark in a room that is too bright.
• Check the colour system setting. (Pages 27 and 32)
• Is the room too bright? The picture may look dark in a room that is too bright.
• Check the colour system setting. (Pages 27 and 32)
• Power is suddenly turned off.
• The unit’s internal temperature has increased.
Remove any objects blocking the vent or clean.
• Is the sleep timer set? Select “Off” from the “Sleep Timer” menu. (Page 26)
• Is “No signal off” activated?
Remove any objects blocking the vent or clean.
• Is the sleep timer set? Select “Off” from the “Sleep Timer” menu. (Page 26)
• Is “No signal off” activated?
• No picture.
• Are connections to external equipment correct? (Pages 15-17)
• Is the input signal type selected correctly after connection? (Page 32)
• Is the correct input source selected? (Page 10)
• Is a non-compatible signal being input? (Page 36)
• Is the picture adjustment correct? (Pages 24-25)
• Is the antenna connected properly? (Page 8)
• Is “On” selected in “Audio Only”? (Page 30)
• Is the input signal type selected correctly after connection? (Page 32)
• Is the correct input source selected? (Page 10)
• Is a non-compatible signal being input? (Page 36)
• Is the picture adjustment correct? (Pages 24-25)
• Is the antenna connected properly? (Page 8)
• Is “On” selected in “Audio Only”? (Page 30)
• No sound.
• Is the volume too low?
• Make sure that headphones are not connected.
• Check if you pressed
• Make sure that headphones are not connected.
• Check if you pressed
e on the remote control unit.
• The TV sometimes makes a
cracking sound.
• This is not a malfunction. This happens when the cabinet slightly expands and
contracts according to change in temperature. This does not affect the TV’s
performance.
performance.
Information on the software license for this product
Software composition
The software included in this product is comprised of various software components whose individual copyrights are held by SHARP or by
The software included in this product is comprised of various software components whose individual copyrights are held by SHARP or by
third parties.
Software developed by SHARP and open source software
The copyrights for the software components and various relevant documents included with this product that were developed or written
The copyrights for the software components and various relevant documents included with this product that were developed or written
by SHARP are owned by SHARP and are protected by the Copyright Act, international treaties, and other relevant laws. This product also
makes use of freely distributed software and software components whose copyrights are held by third parties. These include software
components covered by a GNU General Public License (hereafter GPL), a GNU Lesser General Public License (hereafter LGPL) or other
license agreement.
makes use of freely distributed software and software components whose copyrights are held by third parties. These include software
components covered by a GNU General Public License (hereafter GPL), a GNU Lesser General Public License (hereafter LGPL) or other
license agreement.
Obtaining source code
Some of the open source software licensors require the distributor to provide the source code with the executable software components.
Some of the open source software licensors require the distributor to provide the source code with the executable software components.
GPL and LGPL include similar requirements. For information on obtaining the source code for the open source software and for obtaining the
GPL, LGPL, and other license agreement information, visit the following website:
GPL, LGPL, and other license agreement information, visit the following website:
http://www.sharp-eu.com/gpl/
We are unable to answer any questions about the source code for the open source software. The source code for the software components
whose copyrights are held by SHARP is not distributed.
Acknowledgements
The following open source software components are included in this product:
• linux kernel • modutils • glibc • zlib • libpng
The following open source software components are included in this product:
• linux kernel • modutils • glibc • zlib • libpng
Cautions regarding use in high and low temperature environments
• When the unit is used in a low temperature space (e.g. room, office), the picture may leave trails or appear slightly delayed.
This is not a malfunction, and the unit will recover when the temperature returns to normal.
• Do not leave the unit in a hot or cold location. Also, do not leave the unit in a location exposed to direct sunlight or near a
heater, as this may cause the cabinet to deform and the LCD panel to malfunction.
Storage
temperature:
e5°C to e35°C.
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Appendix
Updating your TV via DVB-T
To ensure that your TV software version is always up to
date, from time to time SHARP will make updated TV
base software and DVB software available.
date, from time to time SHARP will make updated TV
base software and DVB software available.
Reset
If complex adjustments are made so that the settings
cannot be restored to normal, you can reset the
settings to the factory preset values.
cannot be restored to normal, you can reset the
settings to the factory preset values.
Downloading the software
If the software is updated, the confirmation message
“New download information has been detected.”
appears. You can select the method of update.
“New download information has been detected.”
appears. You can select the method of update.
When you tune to the service that provides the
update, a confirmation message displays.
update, a confirmation message displays.
Follow the screen prompts.
1
2
Download Setup
Digital Setup
NOTE
• The TV must remain in standby mode for download. Do not
• The TV must remain in standby mode for download. Do not
switch off the TV with the main power switch.
• Updating the software may take some time.
Message List
Information
Press
c/d to select “Yes”, and then press OK.
• “Now, TV will restart automatically. OK?” displays on
the screen.
Press
c/d to select “Yes”, and then press OK.
• “Now initialising...” displays on the screen and blinks.
• After the reset has completed, the power shuts
• After the reset has completed, the power shuts
off and then comes back on. The screen will have
returned to its original settings.
returned to its original settings.
Now initialising...
1
2
Reset
Setup
You can check the TV ID on the screen for reporting to
customer service.
customer service.
Identification
Setup
Item
Yes:
Search automatically if there is software available for
update when the TV is in standby mode.
No:
Do not search for update information.
Now:
Check whether or not there is a new software
immediately.
When software is detected in the “Download Setup”
menu and “No” is selected, you can update the
software from the “Message List” menu.
menu and “No” is selected, you can update the
software from the “Message List” menu.
Press
c/d to select “Yes” after confirming the
message, and then press OK.
NOTE
• When the TV succeeds at downloading new software,
• When the TV succeeds at downloading new software,
the message is updated in the “Message List” of the
“Information” menu.
“Information” menu.
• The software update will not be carried out if there is no
new software available at the specified download time.
Receiver Report
Information
Display reports regarding failures and changes for timer
settings.
settings.
Identification
Searching for updates*
* The country except UK and Sweden is set to “Yes” on
this function.
The TV automatically determines whether a new
software version is available when the TV is in standby
mode.
this function.
The TV automatically determines whether a new
software version is available when the TV is in standby
mode.
Item
Yes:
Start downloading immediately. It takes
approximately one hour to update. You cannot carry out
other operations while downloading.
other operations while downloading.
No:
Start downloading automatically several minutes
after entering standby mode. The Timer settings will be
executed.
executed.
• Cancel the download by pressing OK on the remote
control when displaying “Discontinue” on the screen
during the update.
during the update.
CLEARING THE PASSWORD
Go to MENU > Setup.
Press
a/b to select “Auto Installation”,
“Programme Setup”, “Child Lock”, “Reset”, and
the PIN input screen displays.
the PIN input screen displays.
Press and hold both CH
r and VOL
k on the
TV simultaneously until the message appears
on the screen.
on the screen.
1
2
2
3
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