DOWNLOAD LG 26LH1DCX-UX / 26LH1DC3-UA / 26LH1DC4-UB / 26LH1DC5-UC Service Manual ↓ Size: 31.35 MB | Pages: 72 in PDF or view online for FREE

Model
26LH1DCX-UX 26LH1DC3-UA 26LH1DC4-UB 26LH1DC5-UC
Pages
72
Size
31.35 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
26lh1dcx-ux-26lh1dc3-ua-26lh1dc4-ub-26lh1dc5-uc.pdf
Date

LG 26LH1DCX-UX / 26LH1DC3-UA / 26LH1DC4-UB / 26LH1DC5-UC Service Manual ▷ View online

-13-
2. Software Upgrade
2.1 Serial Upgrade
(1) DTV B/D Program Download
[Preparations]
• 
Required equipment : PC, D-SUB 9pin Female to Female cross type
RS-232C cable
• 
S/W : KMCOMM.exe
[Menu item description]
① Exit : End the program.
② Port : Setup the serial port for the Host to use. COM1~COM4
③ Connect : KMCOMM uses the host serial port setup in ②.
④ Model : Main chipset type setup to be used in TV.
(For this model it is SupraHD)
⑤ Data Type : Setup the S/W type of file to Download.
⑥ Speed : Increase the download speed up to twice Dynamically.
⑦ Download File Browse : Select the ‘*.mem’ file to Download.
⑧ Download File Status : This indicates the files setup to currently
download.
⑨ Ready : Standby until the TV can communicate with KMCOMM.
⑩ Stop : Stop the standby for communication with the TV.
⑪ Download Progress : This indicates the progress of download
to the TV.
⑫ As the window to show you the download status in message,
you can see the progress status in detail.
[Executing order]
1) Unplug the power cord of the TV.
2) Set the RS-232C SELECT switch on the back of the TV in the
direction of NORMAL(DTV).
3) With the RS-232C Cable, connect the RS-232C port of the TV
and the COM port of the PC.
4) Execute the “KMCOMM.exe” program on the PC.
5) After checking the port number connected to the TV from
Control Panel → System → Hardware → Device Manager 
→ Ports, set the Port for the Connection group.
6) Check whether the Model of the Configuration group is set to
SupraHD, and the Data type to Application.
7) Click on the Download File Browse button, select “.mem” file,
and click on the Open button.
8) Click on the Connect button of the Connection group, and
check whether the Ready button of the Operation group is
activated.
(At this time, check whether “<Connect COM port success>” is 
shown in the Message window.)
9) Click on the Ready button of the Operation group.
10) Press the UPDATE button on the back of the TV and plug the
power cord.
11) When the Download Progress Bar becomes 100%, check whether
the Message window shows “Close Serial Download Program,
And Please Power Off/On for apply new Application code” and the
Ready button of the Operation group is activated. (Make sure the
power is not disconnected before the Download is complete.)
12) If there is no problem, end the “KMCOMM.exe” program and unplug
the power cord, and then plug the power cord to check whether it is
operating normally.
-14-
(2) Control B/D Program Download
[Executing order]
1) Check whether the TV is for lodging or Healthcare.
2) Unplug the power cord of the TV.
3) Set the RS-232C select switch on the back of the TV in the
direction of CONTROL.
4) With the RS-232C cable, connect the RS-232C port of the TV
and the COM port of the PC.
5) Execute “Hyper Terminal” program of PC and assign the Name and Icon.
6) After checking the port number connected to the TV from
Control Panel → System → Hardware → Device Manager 
→ Ports, set the Port for the Connect using.
7) Set 115200 for Bit per second, 8 for Data bits, None for Parity, 
1 for Stop bits, None for Flow control, and then click on “OK” button.
8) Check if the “Hyper Terminal” is connected.
Turn on the TV while pressing the UPDATE SWITCH on the
rear part of TV, and check the following menu screen.
9) Input “a” to execute the Erase Flash. When it displays the menu screen,
input “b” to execute the Program Flash.
10) Click on the “Transfer” menu on the above and select “Send text file”.
Select the “.s19” file to download and click on “Open” button. 
(Check whether the TV is for lodging or Healthcare.)
-15-
11) Check if the Downloading process is as following and wait
until it completes. (Make sure the power is not disconnected
before the download is complete.)
12) When the downloading process is completed and it shows the
menu screen, turn off TV and then turn it on again.
13) Change the RS-232C SELECT Switch on the rear part of TV
into the NORMAL(DTV) and turn it off.
Turn it on again after 5 seconds.
14) Check the PTC Version from Service Menu of the TV.
(3) RF Upgrade
This is how to upgrade program in the TV set without any
separate equipment.
ATSC Stream generator sends the stream with the upgrade
program, and the “SW Upgrade” is selected from the service
menu of the TV to execute the setting.
- Select RF Mode(Air or Cable) : Press the left/right button on the 
remote controller to select 0(Air) or 1(Cable).
- RF Freq : Select the channel number including the upgrade 
program Stream.
- FE Mode(VSB/64QAM/256QAM) : Use the left/right button 
of the remote controller to select 0(VSB), 1(64QAM) or 2(256QAM).
But you must not set 64QAM/256QAM for Air.
After completing the all the settings, select upgrade start to
start the upgrade.
When all the upgrade is normally completed, the system will
automatically reboot. Even if it fails, you must turn the power
off and then turn it back on to return to its normal condition.
(4) EDID Data Write : RGB PC port, HDMI port EDID down load 
(Read/Write)
• Required equipment : PC, EEPROM Programmer(Ex : UprogHS 48
Potable), HDMI EDID Cable, RGB PC EDID
Cable
• S/W : Ex)Uprog.exe
[Wiring diagram of EEPROM 24LC02 and RGB PC EDID Cable]
[Wiring diagram of EEPROM 24LC02 and HDMI EDID Cable]
[Data read of EEPROM using RGB PC port and HDMI port]
1)
Connect the USB port of the PC and the UprogHS 48 Potable
using the USB Cable, and connect the UprogHS 48 Potable with
the TV using the HDMI and RGB PC EDID Cable.
2)
Execute the UprogHS 48 Potable program.
3) Click on the Device         button and select the 24LC02B/TSOP as
the Device.
4) Click on the Read button of the SINGLE TAB to read the Data of
EEPROM.
5) Proceed by clicking on the               button.
6) After checking the                                , compare the Data Read
from EEPROM with the Default Data.
7) To save the Data in the BUFFER, click on the                button of Buffer
group, and then click on                button of the Save File window.
8) Save the file in “.dat” format and end the program.
-16-
[Data Write of EEPROM using RGB PC port and HDMI port]
1)
Connect the USB port of the PC and the UprogHS 48 Potable
using the USB Cable, and connect the UprogHS 48 Potable with
the TV using the HDMI and RGB PC EDID Cable.
2)
Execute the UprogHS 48 Potable program.
4)
Click on the Device         button and select the 24LC02B/TSOP as
the device.
5) Click on the               button of Buffer group and open the “.dat” file
to Write on the EEPROM, and then click on              .
6) After clicking the PROGRAM Tab, click on          button to write on
EEPROM when the Erase, Blank check, Program and Verify
button are activated.
7) Proceed by clicking on the               button.
8) After checking the                                     end the program.
[RGB PC EEPROM Default Data]
[HDMI EEPROM Default Data]
ADDRESS
BUFFER (HEX)
0
1
2
3
4
5
6
7
8
9
A
B C
D
E
F
00000000
00 FF FF FF FF FF FF 00 4E 64 01 00 01 00 00 00
00000010
00 10 01 03 81 50 2D 78 0A EE 91 A3 54 4C 99 26
00000020
0F 50 54 AF EE 00 31 59 45 59 61 59 01 01 01 01
00000030
01 01 01 01 01 01 64 19 00 40 41 00 26 30 18 88
00000040
36 00 C4 8E 21 00 00 18 1B 21 50 A0 51 00 1E 30
00000050
48 88 35 00 C4 8E 21 00 00 18 00 00 00 FD 00 38
00000060
55 20 50 0B 00 0A 20 20 20 20 20 20 00 00 00 FC
00000070
00 48 44 54 56 20 20 20 20 20 20 20 20 0A 01 E5
00000080
02 03 1B F2 44 85 84 03 07 26 09 07 07 15 07 50
00000090
83 01 00 00 66 03 0C 00 10 00 80 01 1D 80 18 71
000000A0
1C 16 20 58 2C 25 00 C4 8E 21 00 00 9E 01 1D 00
000000B0
72 51 D0 1E 20 6E 28 55 00 C4 8E 21 00 00 1E 8C
000000C0
0A D0 8A 20 E0 2D 10 10 3E 96 00 C4 8E 21 00 00
000000D0
18 8C 0A A0 14 51 F0 16 00 26 7C 43 00 C4 8E 21
000000E0
00 00 98 0E 1F 00 80 51 00 1E 30 40 80 37 00 C4
000000F0
8E 21 00 00 1E 00 00 00 00 00 00 00 00 00 00 C6
ADDRESS
BUFFER (HEX)
0
1
2
3
4
5
6
7
8
9
A
B C
D
E
F
00000000
00 FF FF FF FF FF FF 00 4E 64 01 00 01 00 00 00
00000010
00 10 01 03 08 50 2D 78 0E EE 91 A3 54 4C 99 26
00000020
0F 50 54 AF EE 00 31 59 45 59 61 59 01 01 01 01
00000030
01 01 01 01 01 01 1B 21 50 A0 51 00 1E 30 48 88
00000040
35 00 C4 8E 21 00 00 18 0E 1F 00 80 51 00 1E 30
00000050
40 80 37 00 C4 8E 21 00 00 1E 00 00 00 FD 00 38
00000060
5A 20 50 0B 00 0A 20 20 20 20 20 20 00 00 00 FC
00000070
00 48 44 54 56 20 20 20 20 20 20 20 20 0A 00 37
00000080
FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
00000090
FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
000000A0
FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
000000B0
FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
000000C0
FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
000000D0
FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
000000E0
FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
000000F0
FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
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