LG 27LS5400 / 27LS540T (CHASSIS:LD02M) Service Manual ▷ View online
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ADJUSTMENT INSTRUCTION
1. Application Range
This document is applied to LD02M chassis LCD LED TV
which is manufactured in TV (or Monitor) Factory or is
produced on the basis of this data.
2. Designation
1) The adjustment is according to the order which is
designated and which must be followed, according to the
plan which can be changed only on agreeing.
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 °C ± 5 °C
Relative humidity : 65 % ± 10 %
Input voltage : 220V, 60Hz
6) Adjustment equipments: Color Analyzer(CA-210 or CA-110),
DDC Adjustment Jig equipment, Service remote control.
7) Push The "IN STOP KEY" – For memory initialization
3. Main PCB check process
* APC - After Manual-Insult, 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 display “Error”, Check connect computer, jig,
and set.
3) Click “Connect” tab. If display “Can’t”, Check connect
computer, jig, and set.
4) Click “Read” tab, and then load download file(XXXX.bin) by
clicking “Read”
5) Click “Auto” tab and set as below
6) Click “Run”.
7) After downloading, check “OK” message.
*
USB DOWNLOAD(*.epk file download)
1) Make New folder named “LG_DTV” and put ISP file(*.epk)
in the folder.
2) Put the USB Stick to the USB socket.
3) 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
4) Show the message "Copying files from memory"
5) Updating is staring.
6) Updating Completed, The Multi-vision will restart
automatically.
7) If your TV is turned on, check your updated version and
Tool option. (explain the Tool option, next stage)
* If downloading version is more high 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 "ADJ" key in service remote controller
2. Select "Tool Option 1" and Push "OK" button
3. Punch in the number. (Each model has their number.)
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.
(1)
(3)
(2) OK
Please Check the Speed :
Use the speed under
200KHz.
Use the speed under
200KHz.
(4)
filexxx.bin
(6)
(5)
(7) ……….OK
(5)
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3.1. ADC Process
3.1.1. ADC
1) Press the “ADJ” KEY on R/C and enter EZ ADJUST.
2) Enter ADC Calibration mode by pushing “►” key at “7. ADC
Calibration”.
3) Push the “Start” button.
4) ADC Calibration is executed automatically.
5) Press “EXIT” key on R/C.
* ADC Calibration Protocol (RS232)
- 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
3.2. EDID Process
3.2.1. EDID download
1) Press "Power only" key of service remote control.
2) Press the ADJ KEY on R/C and enter EZ ADJUST
3) Enter EDID D/L mode by pushing "►" key at "11. EDID D/L".
4) EDID download is executed automatically.
5) Press EXIT key on R/C.
<Caution>
- Never connect HDMI & D-sub Cable when download EDID.
- Download HDMI1, HDMI2 separately because HDMI1 is dif-
ferent from HDMI2.
* Edid data and Model option download (USB)
3.2.2. RGB EDID Data
1) 27LS5400/T(Product ID: 22873)
*(week), **(year), ***(Check sum) : Adjustable Data
3.2.3. HDMI EDID Data
2) 27LS5400/T(Product ID: 22874)
*(week), **(year), ***(Check sum) : Adjustable Data
**** (physical address) : (HDMI1 : 10, HDMI2 : 20),
****(Check sum) : (HDMI1 : F6, HDMI2 : E6)
****(Check sum) : (HDMI1 : F6, HDMI2 : E6)
3.3. Function Check
3.3.1. Check display and sound
*Check Input and Signal items. (cf. work instructions)
1) TV
2) AV (SCART/CVBS)
3) COMPONENT (480i)
4) RGB(PC : 1920 x 1080 @ 60Hz)
5) HDMI1/2
6) PC Audio In
* Display and Sound check is executed by Remote controller
<Caution> Not to push the INSTOP KEY after completion if the
function inspection.
EZ ADJUST
0. Tool Option1
1. Tool Option2
2. Tool Option3
3. Tool Option4
4. Tool Option 5
5. Country Group
6. Area Option
1. Tool Option2
2. Tool Option3
3. Tool Option4
4. Tool Option 5
5. Country Group
6. Area Option
7. ADC Calibration
ඖ
8. White Balance
9. 10 Point WB
10. Test Pattern
11. EDID D/L
12. Sub B/C
13. Touch Sensitivity Setting
9. 10 Point WB
10. Test Pattern
11. EDID D/L
12. Sub B/C
13. Touch Sensitivity Setting
ADC Calibration
ADC Comp 480i
NG
ADC Comp 1080p
NG
ADC RGB
NG
Start
Reset
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 adjustment
(The use of a internal pattern)
EZ ADJUST
0. Tool Option1
1. Tool Option2
2. Tool Option3
3. Tool Option4
4. Tool Option 5
5. Country Group
6. Area Option
1. Tool Option2
2. Tool Option3
3. Tool Option4
4. Tool Option 5
5. Country Group
6. Area Option
7
.
ADC Calibration
ඖ
8. White Balance
9. 10 Point WB
10. Test Pattern
9. 10 Point WB
10. Test Pattern
11
. EDID D/L
12. Sub B/C
13. Touch Sensitivity Setting
13. Touch Sensitivity Setting
EDID D/L
HDMI1
HDMI2
NG
HDMI3
NG
RGB
NG
NG
NG
Start
Reset
NO
Item
CMD 1 CMD 2
Data 0
Enter
download
MODE
Download
‘Mode In’
A
A
0
0
When transfer the
‘Mode In’,
Carry the command.
EDID data and
Model option
download
Download
A
E
00
10
Automatically download
(The use of a internal Data)
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3.4. CI+ key writing process. (Device CN)
(1) Press "Power on" button of a service R/C.(Baud rate :
115200 bps)
(2) Connect USB.
(3) Write CI+ Key through RS-232-C.
* Connect TV SET and PC which download keys Writing
program by USB-Cable
1) Start “CIKey.exe”Program and Click (3) Button to connect
TV and PC.
2) Click (5) to download CI+ Key.
3) When download succeed, you can see “OK” on Message
tab.
4) Check whether the key was downloaded or not at ‘In
Start’ menu. (Refer to below).
=> Check the Download to CI+ Key value in LG set.
3.4.1. Check the method of CI+ Key value
(1) Check the method on Instart menu
(2) Check the method of RS232C Command
1) Into the main ass’y mode(RS232: aa 00 00)
2) Check the key download for transmitted command
(RS232: ci 00 10)
3) Result value
- Normally status for download : OKx
- Abnormally status for download : NGx
3.4.2. Check the method of CI+ key value(RS232)
1) Into the main ass’y mode(RS232: aa 00 00)
2) Check the mothed of CI+ key by command
(RS232: ci 00 20)
3) Result value
i 01 OK 1d1852d21c1ed5dcx
CMD 1
CMD 2
Data 0
A
A
0
0
CMD 1
CMD 2
Data 0
C
I
1
0
CMD 1
CMD 2
Data 0
A
A
0
0
CMD 1
CMD 2
Data 0
C
I
2
0
CI+ Key Value
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4. Total Assembly line process
4.1. Tool option & ADC Check
1) Press "Power on" key of service remote control.
2) Connect RS232 to USB Signal Cable to USB Jack.
3) Check the 'Tool Option' (Refer to the BOM Comments or
Adjustment spec)
4) Check the ‘ADC’ is ok.
4.2. Model name & Serial number download
4.2.1. Model name & Serial number D/L
1) Press "Power on" key of service remote control.
2) Connect RS232 Signal Cable to RS-232 Jack.
3) Write Serial number by use RS-232.
4) Must check the serial number at the Diagnostics of SET UP
menu. (Refer to below).
4.2.2. 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) There is impossible to download by bar code scan,
so It need Manual download.
1) Press the 'Instart' key of ADJ remote controller.
2) Go to the menu '6.Model Number D/L' like below photo.
3) Input the Factory model name(ex M2352D-PZN) or Serial
number like photo.
4) Check the model name Instart menu → Factory name
displayed (ex M2352D-PZN)
5) Check the Diagnostics (DTV country only) → Buyer
model displayed (ex M2352D)
4.3. Function Check
4.3.1. Check display and sound
* Check Input and Signal items. (cf. work instructions)
1) TV
2) AV (SCART/CVBS)
3) COMPONENT (480i)
4) RGB(PC : 1920 x 1080 @ 60Hz)
5) HDMI1/2
6) PC Audio In
* Display and Sound check is executed by Remote control
* Caution : Not to push the INSTOP KEY after completion if
the function inspection.
4.3.2. PCMCIA CARD Check
You must adjust DTV 29 Channel and insert PCMCIA CARD
to socket.
- If PCMCIA CARD works normally, video signals will appear
on screen.
But it works abnormally, "No CA module" will appear on screen.
* Caution: Set up "RF mode" before launching products.
4.4. White balance adjustment
RGB Gains are fixed data for each model.
Insert RS-232C Jack which is connected with PC for White
Balance or equivalent device.
→ Total Assembly line should be check whether the color
coordinate(x,y) data refer to below table were meet or not.
*Note : x,y coordinates are drifted about 0.007 after 30 mins
heat-run. So checking color coordinate within 5-min at
total assembly line, consider x,y coordinates might be
up to 0.007 than x,y target of each color temperature.
*Note : Manual W/B process using adjusts Remote control.
1) After enter Service Mode by pushing "ADJ" key,
2) Enter "White Balance" by pushing "►" key at "White
Balance".
EZ ADJUST
0. Tool Option1
1. Tool Option2
2. Tool Option3
3. Tool Option4
4. Tool Option5
5. Country Group
6. Area Option
7. ADC Calibration
1. Tool Option2
2. Tool Option3
3. Tool Option4
4. Tool Option5
5. Country Group
6. Area Option
7. ADC Calibration
8. White Balance
►
9. 10 Point WB
10. Test Pattern
11. EDID D/L
12. Sub B/C
13. Touch Sensitivity Setting
10. Test Pattern
11. EDID D/L
12. Sub B/C
13. Touch Sensitivity Setting
White Balance
Color Temp.
R-Gain
G-Gain
B-Gain
R-Cut
G-Cut
B-Cut
Test-Pattern
Backlight
Reset
G-Gain
B-Gain
R-Cut
G-Cut
B-Cut
Test-Pattern
Backlight
Reset
Cool
172
172
192
172
192
64
64
64
64
64
ON
100
To Set
Color
Temperature
Cool
9,300k
°K
X=0.285 (±0.03)
Y=0.293 (±0.03)
<Test Signal>
Inner pattern
(204gray,80IRE)
Medium 8,000k
°K
X=0.295 (±0.03)
Y=0.305 (±0.03)
Warm
6,500k
°K
X=0.313 (±0.03)
Y=0.329 (±0.03)
Luminance
(cd/m²)
Cool
Min : 90
Typ : 110
<Test Signal>
Inner pattern
(204gray,80IRE)
Medium Min : 90
Typ : 110
Warm
Min : 90
Typ : 110
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