LG 47LK950S (CHASSIS:LD12P) Service Manual ▷ View online
- 13 -
A
Reference
- HDMI1 ~ HDMI3 / RGB
- In the data of EDID, bellows may be different by S/W or
- In the data of EDID, bellows may be different by S/W or
Input mode.
ⓐ Product ID
ⓑ Serial No. : Controlled on product line
ⓒ Month, Year: Controlled on production line:
ex) Monthly : ‘01’ -> ‘01’
Year : ‘2010’ -> ‘14’
ⓓ Model Name(Hex):
ⓔ Checksum: Changeable by total EDID data.
ⓕ Vendor Specific(HDMI)
4.2. White Balance Adjustment
4.2.1. Overview
(1) W/B adj. Objective & How-it-works
(2) Objective: To reduce each Panel’s W/B deviation
(3) How-it-works : When R/G/B gain in the OSD is at 192, it
(2) Objective: To reduce each Panel’s W/B deviation
(3) How-it-works : When R/G/B gain in the OSD is at 192, it
means the panel is at its Full Dynamic Range. In order to
prevent saturation of Full Dynamic range and data, one of
R/G/B is fixed at 192, and the other two is lowered to find
the desired value.
prevent saturation of Full Dynamic range and data, one of
R/G/B is fixed at 192, and the other two is lowered to find
the desired value.
(4) Adj. condition : normal temperature
1) Surrounding Temperature : 25 ºC ± 5 ºC
2) Warm-up time: About 5 Min
3) Surrounding Humidity : 20 % ~ 80 %
2) Warm-up time: About 5 Min
3) Surrounding Humidity : 20 % ~ 80 %
4.2.2 Equipment
1) Color Analyzer: CA-210 (LED Module : CH 14)
2) Adjustment Computer(During auto adj., RS-232C protocol is
2) Adjustment Computer(During auto adj., RS-232C protocol is
needed)
3) Adjustment remote control
4) Video Signal Generator MSPG-925F 720p/204-Gray
4) Video Signal Generator MSPG-925F 720p/204-Gray
(Model:217, Pattern:49)
-> Only when internal pattern is not available
-> Only when internal pattern is not available
A
Color Analyzer Matrix should be calibrated using CS-1000.
4.2.3. Equipment connection MAP
4.2.4. Adj. Command (Protocol)
<Command Format>
- LEN: Number of Data Byte to be sent
- CMD: Command
- VAL: FOS Data value
- CS: Checksum of sent data
- A: Acknowledge
Ex) [Send: JA_00_DD] / [Ack: A_00_okDDX]
- CMD: Command
- VAL: FOS Data value
- CS: Checksum of sent data
- A: Acknowledge
Ex) [Send: JA_00_DD] / [Ack: A_00_okDDX]
A
RS-232C Command used during auto-adj.
Ex) wb 00 00 -> Begin white balance auto-adj.
wb 00 10 -> Gain adj.
ja 00 ff -> Adj. data
jb 00 c0
...
...
wb 00 1f -> Gain adj. completed
ja 00 ff -> Adj. data
jb 00 c0
...
...
wb 00 1f -> Gain adj. completed
*(wb 00 20(Start), wb 00 2f(completed)) -> Off-set adj.
wb 00 ff -> End white balance auto-adj.
A
Adj. Map
Model Name
HEX
EDID Table
DDC Function
ALL
0001
0100
Analog
0001
0100
Digital
MODEL
MODEL NAME(HEX)
all
00 00 00 FC 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20
INPUT
MODEL NAME(HEX)
HDMI1
78 03 0C 00 10 00 B8 2D 20 C0 0E 01 40 0A 3C 08 10 18 10 98 10 58 10 38 10
HDMI2
78 03 0C 00 20 00 B8 2D 20 C0 0E 01 40 0A 3C 08 10 18 10 98 10 58 10 38 10
HDMI3
78 03 0C 00 30 00 B8 2D 20 C0 0E 01 40 0A 3C 08 10 18 10 98 10 58 10 38 10
INPUT
ⓔ
1
ⓔ
2
ⓔ
3
HDMI1
7F
CB
X
HDMI2
7F
BB
X
HDMI3
7F
AB
X
RGB
X
X
98
Co lo r Analyzer
Co m p ut er
Pat t ern Generat o r
RS -232C
RS -232C
RS -232C
Probe
Signal Source
* If TV internal pattern is used, not needed
LEN
CMD
VAL
CS
RS-232C COMMAND
Explanation
[CMD
ID
DATA]
wb
00
00
Begin White Balance adj.
wb
00
10
Gain adj.(internal white pattern)
wb
00
1f
Gain adj. completed
wb
00
20
Offset adj.(internal white pattern)
wb
00
2f
Offset adj. completed
wb
00
ff
ITEM
Command
Data Range(Hex.) Default(Decimal)
Cmd 1
Cmd 2
Min
Max
Cool
R-Gain
j
g
00
C0
G-Gain
j
h
00
C0
B-Gain
j
i
00
C0
R-Cut
G-Cut
B-Cut
Medium
R-Gain
j
a
00
C0
G-Gain
j
b
00
C0
B-Gain
j
c
00
C0
R-Cut
G-Cut
B-Cut
Warm
R-Gain
j
d
00
C0
G-Gain
j
e
00
C0
B-Gain
j
f
00
C0
R-Cut
G-Cut
- 14 -
A
3 Command White Balance Adj. Map
A
Infrared Sensor Adj. Map
4.2.5. Adj. method
(1) Auto adj. method
1) Set TV in adj. mode using POWER ON key.
2) Zero calibrate probe then place it on the center of the
2) Zero calibrate probe then place it on the center of the
Display.
3) Connect Cable (RS-232C)
4) Select mode in adj. Program and begin adjustment.
5) When adj. is completed(OK Sign), check adj. status pre
4) Select mode in adj. Program and begin adjustment.
5) When adj. is completed(OK Sign), check adj. status pre
mode. (Warm, Medium, Cool)
6) Remove probe and RS-232C cable to complete adj..
A
W/B Adj. must begin as start command “wb 00 00” , and
finish as end command “wb 00 ff”, and Adj. offset if need.
finish as end command “wb 00 ff”, and Adj. offset if need.
(2) Manual adj. method
1) Set TV in Adj. mode using POWER ON.
2) Zero Calibrate the probe of Color Analyzer, then place it
2) Zero Calibrate the probe of Color Analyzer, then place it
on the center of LCD module within 10cm of the surface.
3) Press ADJ key -> EZ adjust using adjustment remote
control -> 9.White-Balance then press the cursor to the
right key (
right key (
G
).(When key(
G
) is pressed 216 Gray internal
pattern will be displayed.)
4) One of R Gain / G Gain / B Gain should be fixed at 192,
and the rest will be lowered to meet the desired value.
5) Adjustment is performed in COOL, MEDIUM, WARM 3
modes of color temperature.
A
If internal pattern is not available, use RF input. In EZ
Adj. menu 9.White Balance, you can select one of 2 Test
-pattern: ON, OFF. Default is inner(ON). By selecting
OFF, you can adjust using RF signal in 216 gray pattern.
Adj. menu 9.White Balance, you can select one of 2 Test
-pattern: ON, OFF. Default is inner(ON). By selecting
OFF, you can adjust using RF signal in 216 gray pattern.
A
Adj. condition and cautionary items
1) Lighting condition in surrounding area
Surrounding lighting should be lower 10 lux. Try to
isolate adj. area into dark surrounding.
isolate adj. area into dark surrounding.
2) Probe location
: Color Analyzer(CA-210) probe should be within 10 cm
and perpendicular of the module surface.(80°~100°)
3) Aging time
- After Aging Start, keep the Power ON status during
5 Minutes.
- In case of LCD, Back-light on should be checked
using no signal or Full-white pattern.
4.2.6. Reference (White Balance Adj. coordinate
and temperature)
A
Luminance : 204 Gray
A
Standard color coordinate and temperature using CS-1000
(over 26 inch)
(over 26 inch)
A
Standard color coordinate and temperature using CA-210
(CH 14)
(CH 14)
4.2.7. Edge LED White balance table
A
IOP & Edge LED module change color coordinate because
of aging time.
of aging time.
A
Apply under the color coordinate table, for compensated
aging time.
aging time.
- EDGE LED(LW47XX)
Command
SetID R Gain(HEX) G Gain(HEX) B Gain(HEX)
(lower case ASCII)
CMD1
CMD2
MIN
MAX
MIN
MAX
MIN
MAX
Cool
j
j
00
00
C0
00
C0
00
C0
Medium
j
k
00
00
C0
00
C0
00
C0
Warm
j
l
00
00
C0
00
C0
00
C0
Command
R Gain(HEX) G Gain(HEX) B Gain(HEX)
(lower case ASCII)
CMD1
CMD2
MIN
MAX
MIN
MAX
MIN
MAX
Cool
1
C
00
C0
00
C0
00
C0
Medium
1
D
00
C0
00
C0
00
C0
Warm
1
E
00
C0
00
C0
00
C0
Mode
Color Coordination
Temp
∆UV
x
y
COOL
0.269
0.273
13000 K
0.0000
MEDIUM
0.285
0.293
9300 K
0.0000
WARM
0.313
0.329
6500 K
0.0000
Mode
Color Coordination
Temp
∆UV
x
y
COOL
0.269 ± 0.002
0.273 ± 0.002 13000 K
0.0000
MEDIUM
0.285 ± 0.002
0.293 ± 0.002
9300 K
0.0000
WARM
0.313 ± 0.002
0.329 ± 0.002
6500 K
0.0000
GP2
Aging Time
Cool
Medium
Warm
(Min.)
X
Y
X
Y
X
Y
269
273
285
293
313
329
1
0-2
280
291
296
311
319
340
2
3-5
278
288
294
308
317
338
3
6-9
276
285
292
305
315
335
4
10-15
274
282
290
302
313
332
5
20-35
273
279
289
299
312
329
6
36-49
270
276
287
296
310
326
7
50-79
269
273
286
293
308
323
8
Over 80
269
273
285
293
308
323
- 15 -
4.3. Wireless function check
Step 1) Connect set and Dongle of Wireless to Cable of HDMI
& TTA 20Pin.
Step 2) At OSD of SET, check the message like Fig.3.
Step 3) Detach Cable of Wireless Dongle.
Step 3) Detach Cable of Wireless Dongle.
4.4. EYE-Q function check
Step 1) Turn on TV.
Step 2) Press EYE key of Adjustment remote control.
Step 3) Cover the Eye Q II sensor on the front of the using
Step 2) Press EYE key of Adjustment remote control.
Step 3) Cover the Eye Q II 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 II
sensor.
R/G/B value is not lower than 10, replace Eye Q II
sensor.
Step 5) Remove your hand from the Eye Q II sensor and wait
for 6 seconds.
Step 6) Confirm that “ok” pop up. If change is not seen,
replace Eye Q II sensor.
4.5. 3D function test
4.5.1. HDMI 3D
(Pattern Generator MSHG-600, MSPG-6100 [Support HDMI 1.4])
* HDMI mode No. 872, pattern No. 83)
1) Please input 3D test pattern like below
* HDMI mode No. 872, pattern No. 83)
1) Please input 3D test pattern like below
2) When 3D OSD appear automatically, then select green key.
3) Don’t wear a 3D Glasses, Check the picture like below.
4.5.2. RF emitter inspection
(1) Start 3D pattern inspection
(2) If RF emitter signal is correctly received to RF receiver, the
lamp of RF tester turn on.
Fig . 1
< Do ng le>
Fig . 3 Connect the Dongle
( Do ng le Co nnec t io n Disp lay)
Fig . 2
< Wireless Read y Set >
Connect
<IR Tester Lamp turned off(NG)>
<IR Emitter inspection>
<IR Tester Lamp turned on(OK)>
- 16 -
4.6. Option selection per country
(1) Overview
- Option selection is only done for models in Non-EU.
- Applied model: LD12P Chassis applied EU model.
- Applied model: LD12P Chassis applied EU model.
(2) Method
1) Press ADJ key on the Adjustment Remote Control, then
select Country Group Menu.
2) Depending on destination, select Country Group Code
04 or Country Group EU then on the lower Country
option, select US, CA, MX. Selection is done using +, -
or
option, select US, CA, MX. Selection is done using +, -
or
GF
key.
5. Tool Option selection
- Method : Press ADJ key on the Adjustment remote control,
then select Tool option.
5.1. Ship-out mode check(In-stop)
After final inspection, press IN-STOP key of the Adjustment
remote control and check that the unit goes to Stand-by mode.
remote control and check that the unit goes to Stand-by mode.
5.2.1. Method
- Check that Power Cord is fully inserted to the SET.
(If loose, re-insert)
- Unit fully inserted Power cord, Antenna cable and A/V
arrive to the auto-check process.
- Connect D-terminal to AV JACK TESTER.
- Auto CONTROLLER(GWS103-4) ON
- Perform GND TEST.
- If NG, Buzzer will sound to inform the operator.
- If OK, changeover to I/P check automatically.
- Auto CONTROLLER(GWS103-4) ON
- Perform GND TEST.
- If NG, Buzzer will sound to inform the operator.
- If OK, changeover to I/P check automatically.
(Remove CORD, A/V form AV JACK BOX.)
- Perform I/P test.
- If NG, Buzzer will sound to inform the operator.
- If OK, Good lamp will lit up and the stopper will allow the
- If NG, Buzzer will sound to inform the operator.
- If OK, Good lamp will lit up and the stopper will allow the
pallet to move on to next process.
5.2.2. Checkpoint
• TEST voltage
- GND: 1.5 KV/min at 100 mA
- SIGNAL: 3 KV/min at 100 mA
- SIGNAL: 3 KV/min at 100 mA
• TEST time: 1 second
• TEST POINT
• TEST POINT
- GND TEST = POWER CORD GND & SIGNAL CABLE
METAL GND
NEUTRAL
• LEAKAGE CURRENT: At 0.5 mArms
6. USB S/W download(option, service only)
1) Put the USB Stick to the USB socket.
2) Automatically detecting update file in USB Stick
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.
data is automatically detecting.
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
6) 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.
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.)
2) Select “Tool Option 1” and Push “OK” key.
3) Punch in the number. (Each model has their number.)
Click on the first or last page to see other 47LK950S (CHASSIS:LD12P) service manuals if exist.