LG 55LM4600 (CHASSIS:LT21B) Service Manual ▷ View online
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ADJUSTMENT INSTRUCTION
1. Application
This spec sheet is applied all of the LCD TV with LT21A/B/C
chassis
2. Designation
(1) The adjustment is according to the order which is
designated and which must be followed, according to the
plan whic al Unit: Product Specification Standard.
(2) Power adjustment : Free Voltage.
(3) Magnetic Field Condition: Nil.
(4) Input signal Unit: Product Specification Standard.
(5) Reserve after operation: Above 5 Minutes (Heat Run).
Temperature : at 25 ºC±5 ºC
Relative humidity : 65 ± 10%
Input voltage : 220V, 60Hz
The receiver must be operated for about 5 minutes prior to
the adjustment when module is in the circumstance of over
15°C.
In case of keeping module is in the circumstance of 0°C, it
should be placed in the circumstance of above 15°C for 2
hours
In case of keeping module is in the circumstance of below
-20°C, it should be placed in the circumstance of above
15°C for 3 hours,.
[Caution]
When still image is displayed for a period of 20 minutes or
longer, there can some afterimage in the black level area.
(6) Adjustment equipments : Color Analyzer (CA-210 or
CA-110), DDC Adjustment Jig equipment, SVC remote
controller
(7) Push The “IN STOP KEY” – For memory initialization.
Case1 : Software version up
1) After downloading S/W by USB , TV set will reboot
automatically
2).Push “In-stop” key
3).Push “Power on” key
4).Function inspection
5).After function inspection, Push “In-stop” key.
Case2 : Function check at the assembly line
1). When TV set is entering on the assembly line, Push
“In-stop” key at first.
2).Push “Power on” key for turning it on.
=> If you push “Power on” key, TV set will recover channel
information by itself.
3).After function inspection, Push “In-stop” key.
3. Main PCB check process
* APC – After Manual-Insert, executing APC
* Boot file Download
(1) Execute ISP program “Mstar ISP Utility” and then click
“Config” tab.
(2) Set as below, and then click “Auto Detect” and check “OK”
message.
If “Error” is displayed, Check connection between
computer, jig, and set.
(3) Click “Read” tab, and then load download file (XXXX.bin)
by clicking “Read”
(4) Click “Connect” tab. If “Can’t ” is displayed, Check
connection between computer, jig, and set.
(5) Click “Auto” tab and set as below.
(6) Click “Run”.
(7) After downloading, check “OK” message.
(1)
filexxx.bin
(2)
(3)
Please Check the Speed
To use speed between
from 200KHz to 400KHz
To use speed between
from 200KHz to 400KHz
(4)
(5)
(6)
(7)...........OK
filexxx.bin
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* USB DOWNLOAD(*.epk file download)
(1) Put the USB Stick to the USB socket.
(2) Automatically detecting update file in USB Stick.
- If your downloaded program version in USB Stick is Low,
it didn't work. But your downloaded version is High, USB
data is automatically detecting
(3) Show the message "Copying files from memory"
(4) Updating is staring.
(5) After updating is complete, The TV will restart automatically.
(6) If TV turns on, check your updated version and Tool option.
(refer to the next page about tool option)
* If downloading version is higher than your TV have, TV
can lost all channel data. In this case, you have to
channel recover. If all channel data is cleared, you didn't
have a DTV/ATV test on production line.
* After downloading, have to adjust Tool
Option again.
(1) Push "IN-START" key in service remote controller.
(2) Select "Tool Option 1" and Push "OK" button.
(3) Punch in the number. (Each model has their number.)
(4) Completed selecting Tool option.
Model
Module
Tool
option1
Tool
option2
Tool
option3
Tool
option4
Tool
option5
47LM5800-DB
LGD
103
2525
9499
13224
5122
42LM5800-DB
LGD
102
2525
9499
13224
7170
32LM5800-DB
LGD
100
35293
9499
13224
5154
55LM4600-DB
LGD
89
2525
9499
13224
5122
47LM4600-DB
LGD
87
2525
9499
13224
5122
42LM3400-DB
LGD
2525
9499
13224
5154
32LM3400-DB
LGD
2525
9499
13224
5154
32LS5600-DA
LGD
340
35293
9499
13224
5154
47LS4600-DA
LGD
327
2525
9499
13224
5122
42LS4600-DA
LGD
326
2525
9499
13224
5122
32LS4600-DA
LGD
324
2525
9499
13224
5154
32LS3500-DA
LGD
292
494
9499
13224
736
32LS3500-DA
AUO
4388
494
9499
13224
736
42LS3400-DA
LGD
494
9499
13224
736
32LS3400-DA
LGD
494
9499
13224
736
42CS560-DA
AUO
4134
494
9243
13224
736
42CS560-DA
LGD
38
494
9243
13224
704
32CS560-DA
LGD
36
494
9243
13224
737
42CS460-DA
LGD
22
494
9243
13224
704
42CS460-DA
AUO
4118
494
9243
13224
736
32CS460-DA
LGD
20
494
9243
13224
736
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3.1. ADC Process
3.1.1. ADC
■ Enter Service Mode by pushing “ADJ” key,
Calibration”
=> Caution : Using ‘power on’ button of the Adjustment R/C,
power on TV.
※
ADC Calibration Protocol (RS232C/USB)
NO
Item
CMD 1 CMD 2 Data 0
Enter
Adjust MODE
Adjust
‘Mode In’
A
A
0
0 When transfer the
‘Mode In’,
Carry the command.
ADC adjust
ADC
Adjust
A
D
1
0 Automatically adjust-
ment
(The use of a inter-
nal pattern)
※
Adjust Sequence
▪ aa 00 00 [Enter Adjust Mode]
▪ xb 00 40 [Component1 Input (480i)]
▪ ad 00 10 [Adjust 480i Comp1]
▪ xb 00 60 [RGB Input (1024*768)]
▪ ad 00 10 [Adjust 1024*768 RGB]
▪ aa 00 90 End Adjust mode
* Required equipment : Adjustment R/C.
3.2. Function Check
3.2.1. Check display and sound
■ Check Input and Signal items. (cf. work instructions)
(1) TV
(2) AV (CVBS)
(3) COMPONENT (480i)
(4) RGB (PC : 1024 x 768 @ 60hz)
(5) HDMI
(6) PC Audio In
* Display and Sound check is executed by Remote controller.
3.2.2. MAC Address
3.2.2.1. Equipment & Condition
▪ Play file: Serial.exe
▪ MAC Address edit
▪ Input Start / End MAC address
3.2.2.2 Download method
3.2.2.2.1. Communication Prot connection
Connect:
Connection : PCBA (USB Port) -> USB to Serial Adapter
(UC-232A) -> RS-232C cable -> PC(RS-232C port)
3.2.2.2.2. MAC Address Download
▪ Com 1,2,3,4 and 115200(Baudrate)
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3.2.3. LAN Inspection
3.2.3.1. Equipment & Condition
▪ Each other connection to LAN Port of IP Hub and Jig
3.2.3.2. LAN inspection solution
▪ LAN Port connection with PCB
▪ Network setting at MENU Mode of TV
▪ setting automatic IP
▪ Setting state confirmation
▪ If automatic setting is finished, you confirm IP and MAC
Address.
3.2.4. LAN PORT INSPECTION(PING TEST)
3.2.4.1. Equipment setting
1) Play the LAN Port Test PROGRAM.
2) Input IP set up for an inspection to Test
Program.
*IP Number : 12.12.2.2
3.2.4.2. LAN PORT inspection (PING TEST)
1) Play the LAN Port Test Program.
2) connect each other LAN Port Jack.
3) Play Test (F9) button and confirm OK Message.
4) Remove LAN CABLE
3.2.5. Model name & Serial number Download
3.2.5.1. Model name & Serial number D/L
■ Press “Power on” key of service remocon.(Baud rate :
115200 bps)
■ Connect RS232C/USB cable to Side USB Jack.
■ Write Serial number by use RS-232C to Side USB.
■ Must check the serial number at Instart menu.
3.2.5.2. Method & notice
(1) Serial number D/L is using of scan equipment.
(2) Setting of scan equipment operated by Manufacturing
Technology Group.
(3) Serial number D/L must be conformed when it is produced
in production line, because serial number D/L is mandatory
by D-book 4.0
※
Manual Download (Model Name and Serial Number)
If the TV set is downloaded By OTA or Service man,
Sometimes model name or serial number is initialized.
(Not always) It is impossible to download by bar code scan, so
It need Manual download.
▪ Press the ‘instart’ key of ADJ remote controller.
▪ Go to the menu ‘6.Model Number D/L’ like below photo.
▪ Input the Factory model name(ex 42LD450-TA) or Serial
number like photo
▪ Check the model name Instart menu -> Factory name
displayed (ex 42LE7500-TA)
▪ Check the Diagnostics (DTV country only) -> Buyer model
displayed (ex 42LE7500-TA)
=> Caution : Not to push the INSTOP KEY after completion if
the function inspection.
Click on the first or last page to see other 55LM4600 (CHASSIS:LT21B) service manuals if exist.