LG 39LN5400 / 39LN542Y (CHASSIS:LB36B) Service Manual ▷ View online
- 9 -
(3) Show the message "Copying files from memory".
(4) Updating is starting.
(5) Updating Completed, The TV will restart automatically.
(6) If your TV is turned on, check your updated version and
Tool option. (explain the Tool option, next stage)
* If updated version is higher than what TV has, the 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 control.
(2) Select "Tool Option 1" and push "OK" key.
(3) Punch in the number. (Each model has their number)
(4) Completed selecting Tool option.
*
RS-232C Connection Method.
Connection : PCBA (USB Port) → USB to Serial Adapter
(UC-232A) → RS-232C cable → PC(RS-232C port)
● Product name of USB to Serial Adapter is UC-232A.
4. ADC Process
4.1. ADC
- Enter Service Mode by pushing "ADJ" key,
Calibration".
<Caution> Using "P-ONLY" key of the Adjustment remote
control, power on TV.
* 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
* Required equipment : Adjustment remote control.
4.2. Function Check
4.2.1. Check display and sound
■ Check Input and Signal items.
(1) TV
(2) AV (CVBS)
(3) COMPONENT (480i)
(4) HDMI
* Display and Sound check is executed by Remote control.
<Caution> Not to push the "INSTOP" key after completion if
the function inspection.
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 Option5
5. Tool Option Commercial
6. Country Group
7. Area Option
1. Tool Option2
2. Tool Option3
3. Tool Option4
4. Tool Option5
5. Tool Option Commercial
6. Country Group
7. Area Option
8. ADC Calibration
►
9. White Balance
10. 10 Point WB
11. Test Pattern
12. EDID D/L
13. Sub B/C
14. Ext. Input Adjust
10. 10 Point WB
11. Test Pattern
12. EDID D/L
13. Sub B/C
14. Ext. Input Adjust
ADC Calibration
ADC Comp 480i
ADC Comp 1080p
ADC Type
ADC Comp 1080p
ADC Type
Start
NG
NG
NG
OPT
Reset
- 10 -
5. Total Assembly line process
5.1. Adjustment Preparation
▪ W/B Equipment condition
CA210: CH14, Test signal: Inner pattern(80IRE)-LED Module
▪ Above 5 minutes H/run in the inner pattern. ("power on" key
of Adjustment remote control)
* The spec of color temperature and coordinate.
▪ ROW LED W/B Table in process of aging time (Only LGD
ROW module)
* Connecting picture of the measuring instrument
(On Automatic control)
Inside Pattern is used when W/B is controlled. Connect to
auto controller or push Adjustment Remote control POWER
ON → Enter the mode of White-Balance, the pattern will
come out.
* Auto-control interface and directions
(1) Adjust in the place where the influx of light like floodlight
around is blocked. (Illumination is less than 10 lux).
(2) Adhere closely the Color analyzer(CA210) to the module
less than 10 cm distance, keep it with the surface of the
Module and Color analyzer's prove vertically.(80° ~ 100°).
(3) Aging time
- After aging start, keep the power on (no suspension of
power supply) and heat-run over 5 minutes.
- Using 'no signal' or 'POWER ONLY' or the others, check
the back light on.
▪ Auto adjustment Map(RS-232C)
RS-232C COMMAND
[CMD ID DATA]
Wb
00 00
White Balance Start
Wb
00 ff
White Balance End
<Caution>
Color Temperature : COOL, Medium, Warm.
One of R Gain/G Gain/ B Gain should be kept on 0xC0, and
adjust other two lower than C0.(When R/G/B Gain are all
C0, it is the FULL Dynamic Range of Module)
* Manual W/B process using adjust Remote control.
■ Color analyzer(CA100+, CA210) should be used in the
calibrated ch by CS-1000.
■ Operate the zero-calibration of the CA100+ or CA-210,
then stick sensor to the module when adjusting.
■ After enter Service Mode by pushing “ADJ” key,
■ Enter White Balance by pushing “►” key at “9. White
Balance”.
■ For manual adjustment, it is also possible by the following
sequence.
(1) Set TV in Adj. mode using “P-ONLY” key on remote
controller and then operate heat run longer than 15
minutes.(If not executed this step, the condition for W/B
may be different.)
(2) Push “Exit” key.
(3) Enter White Balance mode by pushing the ADJ key and
select “9. White Balance”. When KEY (►) is pressed,
206 Gray internal pattern will be displayed.
(4) Zero Calibrate the probe of Color Analyzer, then place it
on the center of LCD module within 10cm of the surface
(5) Select each items (Red/Green/Blue Gain) using
▲/▼(CH +/-) key on Remote control.
(6) Adjust R/ G/ B Gain using ◄/►(VOL +/-) key on R/C.
Full White Pattern
CA-210
COLOR
ANALYZER
TYPE : CA-210
RS-232C Communication
Mode
Color Temp
Color coordinate
Remark
Cool (C50)
13,000 K
X=0.274 (±0.002)
Y=0.280 (±0.002)
<Test Signal>
- Inner pattern
for W/B adjust
- External white
pattern
(80IRE, 204gray)
Medium(0)
9,300 K
X=0.290 (±0.002)
Y=0.300 (±0.002)
Warm(W50)
6,500 K
X=0.318 (±0.002)
Y=0.336 (±0.002)
S7LR2 Aging time
(Min)
Cool
Medium
Warm
X
y
x
y
x
y
1
0-2
277
284
293
304
319
338
2
3-5
276
282
292
302
318
336
3
6-9
275
280
291
300
317
334
4
10-19
273
277
289
297
315
331
5
20-35
272
276
288
296
314
330
6
36-49
271
275
287
295
313
329
7
50-79
270
274
286
294
312
328
8
Over 80
269
273
285
293
311
327
RS-232C COMMAND
[CMD ID DATA]
MIN
CENTER
(DEFAULT)
MAX
Cool
Mid
Warm
Cool Mid Warm
R Gain jg
Ja
jd
00
172
192 192
192
G Gain jh
Jb
je
00
172
192 192
192
B Gain ji
Jc
jf
00
192
192 172
192
R Cut
64
64
64
128
G Cut
64
64
64
128
B Cut
64
64
64
128
EZ ADJUST
0. Tool Option1
1. Tool Option2
2. Tool Option3
3. Tool Option4
4. Tool Option5
5. Tool Option Commercial
6. Country Group
7. Area Option
8. ADC Calibration
1. Tool Option2
2. Tool Option3
3. Tool Option4
4. Tool Option5
5. Tool Option Commercial
6. Country Group
7. Area Option
8. ADC Calibration
9. White Balance
10. 10 Point WB
11. Test Pattern
12 EDID D/L
13. Sub B/C
14. Ext. Input Adjust
11. Test Pattern
12 EDID D/L
13. Sub B/C
14. Ext. Input Adjust
Whit 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
To Set
Cool
172
192
192
192
192
64
64
64
64
64
ON
100
- 11 -
(7) Adjust three modes all (Cool / Medium / Warm)
- For All model w/o LS345
Fix the one of R/G/B gain and change the others
- For G-FIX model
Cool Mode
1) Fix the one of R/G/B gain to 192 (default data) and
decrease the others. (If G gain is adjusted over 172
and R and B gain less than 192 , Adjust is O.K.)
2) If G gain is less than 172, Increase G gain by up to
172, and then increase R gain and G gain same
amount of increasing G gain.
3) If R gain or B gain is over 255, readjust G gain less
than 172, Conform to R gain is 255 or B gain is 255
Medium / Warm Mode - Fix the one of R/G/B gain to
192 (default data) and decrease the others.
(8) When adjustment is completed, exit adjustment mode
using EXIT key on Remote control.
* CASE Cool
First adjust the coordinate far away from the target
value(x, y).
1) x, y > target
i) Decrease the R, G.
2) x, y < target
i) First decrease the B gain,
ii) Decrease the one of the others.
3) x > target, y < target
i) First decrease B, so make y a little more than the
target.
ii) Adjust x value by decreasing the R.
4) x < target, y > target
i) First decrease B, so make x a little more than the
target.
ii) Adjust x value by decreasing the G.
* After You finish all adjustments, Press “In-start” button
and compare Tool option and Area option value with its
BOM, if it is correctly same then unplug the AC cable.
If it is not same, then correct it same with BOM and
unplug AC cable.
For correct it to the model’s module from factory JIG
model.
* Push the “IN STOP" key after completing the function
inspection.
5.2. DDC EDID Write (HDMI 256Byte)
■ Connect HDMI Signal Cable to HDMI Jack.
■ Write EDID DATA to EEPROM(24C02) by using DDC2B
protocol.
■ Check whether written EDID data is correct or not.
* For SVC main Assembly, EDID have to be downloaded to
Insert Process in advance.
5.3. EDID DATA
1) All Data : HEXA Value
2) Changeable Data :
*: Serial No : Controlled / Data:01
**: Month : Controlled / Data:00
***: Year : Controlled
****: Check sum
- Auto Download
■ After enter Service Mode by pushing “ADJ” key,
■ Enter EDID D/L mode.
■ Enter “START” by pushing “OK” key.
[Caution]
* Use the proper signal cable for EDID Download
- Analog EDID : Pin3 exists
- Digital EDID : Pin3 exists
* Edid data and Model option download (RS232)
(1) FHD 8BIT HDMI EDID DATA
(2) Detail EDID Options are below
a. Product ID
b. Serial No: Controlled on production line.
c. Month, Year: Controlled on production line:
ex) Week : '01' -> '01'
Year : '2012' -> '16' fix
EZ ADJUST
0. Tool Option1
1. Tool Option2
2. Tool Option3
3. Tool Option4
4. Tool Option5
5. Tool Option Commercial
6. Country Group
7. Area Option
8. ADC Calibration
9. White Balance
10. 10 Point WB
11. Test Pattern
1. Tool Option2
2. Tool Option3
3. Tool Option4
4. Tool Option5
5. Tool Option Commercial
6. Country Group
7. Area Option
8. ADC Calibration
9. White Balance
10. 10 Point WB
11. Test Pattern
12. EDID D/L
►
13. Sub B/C
14. Ext. Input Adjust
14. Ext. Input Adjust
EDID D/L
HDMI1
NG
HDMI2
NG
Start
Reset
EDID D/L
HDMI1
OK
HDMI2
OK
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
ADC Adjust
A
E
00 10 Automatically adjustment
(The use of a internal pattern)
No.
Item
Condition
Hex Data
1
Manufacturer ID
GSM
1E6D
2
Version
Digital : 1
01
3
Revision
Digital : 3
03
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
0
00 FF FF FF FF FF FF 00 1E 6D
A
B
10
C
01 03 80 A0 5a 78 0A EE 91 A3 54 4C 99 26
20 0F 50 54 A1 08 00 31 40 45 40 61 40 71 40 81 80
30 01 01 01 01 01 01 02 3A 80 18 71 38 2D 40 58 2C
40 45 00 A0 5A 00 00 00 1E 66 21 50 B0 51 00 1B 30
50 40 70 36 00 A0 5A 00 00 00 1E 00 00 00 FD 00 3A
60 3E 1E 53 10 00 0A 20 20 20 20 20 20
D
70
D
01
E
80 02 03 22 F1 4E 10 9F 04 13 05 14 03 02 12 20 21
90 22 15 01 26 15 07 50 09 57 07
f
A0 80 1E 01 1d 80 18 71 1c 16 20 58 2c 25 00 20 C2
B0 31 00
0
9e 01 1d 00 72 51 d0 1e 20 6e 28 55 00
C0 20 C2 31 00 00 1e 02 3a 80 18 71 38 2d 40 58 2c
D0 45 00 A0 5a 00 00 00 1e 01 1d 00 Bc 52 d0 1e 20
E0 B8 28 55 40 C4 8e 21 00 00 1e 00 00 00 00 00 00
F0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 E
Model Name
HEX
EDID Table
DDC Function
HD/FHD Model
0001
01 00
Analog/Digital
- 12 -
d. Model Name(Hex):
cf) TV set’s model name in EDID data is below.
e. Checksum: Changeable by total EDID data.
f. Vendor Specific
- FHD 8bit model
5.4. Outgoing condition Configuration
■ When pressing IN-STOP key by Service remote control,
Red LED are blinked alternatively. And then automatically
turn off. (Must not AC power OFF during blinking)
5.5. GND and HI-POT Test
5.5.1. GND & HI-POT auto-check preparation
- Check the POWER CABLE and SIGNAL CABE insertion
condition.
5.5.2. GND & HI-POT auto-check
(1) Pallet moves in the station.(POWER CORD / AV CORD is
tightly inserted)
(2) Connect the AV JACK Tester.
(3) Controller (GWS103-4) on.
(4) GND Test (Auto)
- If Test is failed, Buzzer operates.
- If Test is passed, execute next process(Hi-pot test).
(Remove A/V CORD from A/V JACK BOX)
(5) HI-POT test (Auto)
- If Test is failed, Buzzer operates.
- If Test is passed, GOOD Lamp on and move to next
process automatically.
5.5.3. Checkpoint
(1) Test voltage
1) 3 Poles
- GND: 1.5KV/min at 100 mA
- SIGNAL: 3KV/min at 100 mA
2) 2 Poles
- SIGNAL: 3 KV/min at 100 mA
(2) TEST time: 1 second
(3) TEST POINT
1) 3 Poles
- GND Test = POWER CORD GND and SIGNAL
CABLE GND.
- Hi-pot Test = POWER CORD GND and LIVE &
NEUTRAL.
2) 2 Poles
- Hi-pot Test = Accessible Metal and LIVE & NEUTRAL.
(4) LEAKAGE CURRENT: At 0.5mArms
6. Local Dimming Function Check
Step1) Turn on TV.
Step2) Press “P-only” key, enter to power only mode and
escape the “P-only” Mode by pressing “Exit” key.
Step3) Press “Tilt” key, entrance to Local Dimming mode.
Step4) At the Local Dimming mode, module Edge Backlight
moving Top to bottom Back light of module moving.
Step5) confirm the Local Dimming mode.
Step6) Press “Exit” key.
7. 3D function test
(Pattern Generator MSHG-600, MSPG-6100[Support HDMI1.4])
* HDMI mode No. 872 , pattern No.83
(1) Please input 3D test pattern like below.
(2) When 3D OSD appear automatically, then select OK button.
(3) Don't wear a 3D Glasses, check the picture like below.
8. EYE-Q function check
Step1) Turn on TV
Step 2) Press EYE key of Adj. R/C.
Step 3) Cover the Eye Q sensor on the front of the using your
hand and wait for 6 seconds.
Step 4) Confirm that R/G/B value is lower than 10 of the “Raw
Data(Sensor data, Back light)”. If after 6 seconds, R/
G/ B value is not lower than 10, replace Eye Q sensor
Step 5) Remove your hand from the Eye Q sensor and wait
for 6 seconds.
Step 6) Confirm that “ok” pop up. If change is not seen, replace
Eye Q sensor.
MODEL NAME
MODEL NAME(HEX)
LG TV
00 00 00 FC 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 (LG TV)
EDID C/S data
FHD–8BIT(HDMI)
Check Sum
(Hex)
Block 0
43
Block 1
25 (HDMI1)
15 (HDMI2)
15 (HDMI2)
Input
Model name(HEX)
HDMI1
67030C001000
HDMI2
67030C002000
HDMI3
67030C003000
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