LG 37LV3730 (CHASSIS:LB12B) Service Manual ▷ View online
- 9 -
* 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.
a. Press the ‘Instart’ key of Adjustment remote control.
b. Go to the menu ‘6.Model Number D/L’ like below photo.
c. Input the Factory model name(ex 42LD450-TA) or Serial
model name or serial number is initialized.(Not always)
It is impossible to download by bar code scan, so It need
Manual download.
a. Press the ‘Instart’ key of Adjustment remote control.
b. Go to the menu ‘6.Model Number D/L’ like below photo.
c. Input the Factory model name(ex 42LD450-TA) or Serial
number like photo.
d. Check the model name Instart menu. -> Factory name
displayed. (ex 42LE7500-TA)
e. Check the Diagnostics.(DTV country only) -> Buyer model
displayed. (ex 42LE7500-TA)
3.6. WIFI MAC ADDRESS CHECK
a. Using RS232
b. Check the menu on in-start
4. Manual Adjustment
4.1. ADC Adjustment
4.1.1. Overview
ADC adjustment is needed to find the optimum black level and
gain in Analog-to-Digital device and to compensate RGB
deviation.
gain in Analog-to-Digital device and to compensate RGB
deviation.
4.1.2. Equipment & Condition
(1) Adjustment Remote control
(2) 801GF(802B, 802F, 802R) or MSPG925FA Pattern Generator
(2) 801GF(802B, 802F, 802R) or MSPG925FA Pattern Generator
- Resolution :
480i,720*480(MSPG-925FA -> Model: 209, Pattern: 65) -
480i
1080p, 1920*1080(MSPG-925FA -> Model: 225, Pattern:
65) - 1080p
480i
1080p, 1920*1080(MSPG-925FA -> Model: 225, Pattern:
65) - 1080p
- Pattern : Horizontal 100 % Color Bar Pattern
- Pattern level: 0.7 ± 0.1 Vp-p
- Image
- Pattern level: 0.7 ± 0.1 Vp-p
- Image
(3) Must use standard cable.
4.1.3. Adjust method
(1) ADC 480i, 1080p Comp1
1) Check connected condition of Component 1 cable to the
equipment.
2) Give a 480i, 1080p Mode, Horizontal 100% Color Bar
Pattern to Component 1.
(MSPG-925FA -> Model: 209, Pattern: 65) - 480i
(MSPG-925FA -> Model: 225, Pattern: 65) - 1080p
(MSPG-925FA -> Model: 225, Pattern: 65) - 1080p
3) Change input mode as Component1 and picture mode
as “Standard”
4) Press the In-start Key on the ADJ remote control after at
least 1 min of signal reception. Then, select 7. External
ADC -> 1. COMP 1080p on the menu. Press enter key.
The adjustment will start automatically.
ADC -> 1. COMP 1080p on the menu. Press enter key.
The adjustment will start automatically.
5) If ADC calibration is successful, “ADC RGB Success” is
displayed. If ADC calibration is failure, “ADC RGB Fail”
is displayed.
is displayed.
6) If ADC calibration is failure, after recheck ADC pattern or
condition retry calibration. Error message refer to 5).
(2) ADC 1920*1080 RGB
1) Check connected condition of Component & RGB cable
to the equipment
2) Give a 1920*1080 Mode, 100 % Horizontal Color Bar
Pattern to RGB port.
(MSPG-925 Series -> model: 225 , pattern: 65 )
3) Change input mode as RGB and picture mode as “Standard”.
4) Press the In-start key on the ADJ remote control after at
4) Press the In-start key on the ADJ remote control after at
least 1 min of signal reception. Then, select 7. External
ADC -> 1. COMP 1080p on the menu. Press enter key.
The adjustment will start automatically.
ADC -> 1. COMP 1080p on the menu. Press enter key.
The adjustment will start automatically.
5) If ADC calibration is successful, “ADC RGB Success” is
displayed. If ADC calibration is failure, “ADC RGB Fail”
is displayed.
is displayed.
6) If ADC calibration is failure, after recheck ADC pattern or
condition retry calibration. Error message refer to 5).
H-freq(kHz)
V-freq.(Hz)
Transmission
[A][I][][Set ID][][20][Cr]
[O][K][X] or [NG]
- 10 -
4.2. EDID(The Extended Display Identification
Data)/DDC(Display Data Channel) download
(1) Overview
It is a VESA regulation. A PC or a MNT will display an
optimal resolution through information sharing without any
necessity of user input. It is a realization of “Plug and Play”.
optimal resolution through information sharing without any
necessity of user input. It is a realization of “Plug and Play”.
(2) Equipment
- Adjustment remote control
- Since embedded EDID data is used, EDID download JIG,
- Since embedded EDID data is used, EDID download JIG,
HDMI cable and D-sub cable are not need.
(3)Download method
1) Press Adjust key on the Adjustment remote control then
select “10.EDID D/L”, By pressing Enter key, enter EDID
D/L menu.
D/L menu.
2) Select [Start] button by pressing Enter key, HDMI1/
HDMI2/ HDMI3/ HDMI4/ RGB are Writing and display
OK or NG.
OK or NG.
(4) EDID DATA
A
RGB
A
HDMI(FHD HDMI 1.3, Except 3D)
* Physical Add & Checksum(HDMI1/2/3/4)
4.3. White Balance Adjustment
4.3.1. 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) Adjustment 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 %
4.3.2. 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/216-Gray
4) Video Signal Generator MSPG-925F 720p/216-Gray
(Model: 217, Pattern: 78)
-> Only when internal pattern is not available
A
Color Analyzer Matrix should be calibrated using CS-1000.
4.3.3. Equipment connection MAP
4.3.4. 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]
D-sub to D-sub
DVI-D to HDMI or HDMI to HDMI
For HDMI EDID
For Analog EDID
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
01
00
01
01
01
01
10
01
15
01
03
80
10
09
78
0A
EE
91
A3
54
4C
99
26
20
0F
50
54
A1
08
00
71
4F
81
C0
81
00
81
80
95
00
30
90
40
A9
C0
B3
00
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
39
60
3F
1F
52
10
00
0A
20
20
20
20
20
20
00
00
00
FC
70
00
4C
47
20
54
56
0A
20
20
20
20
20
20
20
01
7F
80
02
03
26
F1
4E
10
1F
84
13
05
14
03
02
12
20
21
90
22
15
01
26
15
07
50
09
57
07
67
03
0C
00
XX
XX
A0
80
2D
E3
05
03
01
01
1D
80
18
71
1C
16
20
58
2C
B0
25
00
A0
5A
00
00
00
9E
01
1D
00
80
51
D0
1A
20
C0
6E
88
55
00
A0
5A
00
00
00
1A
02
3A
80
18
71
38
D0
2D
40
58
2C
45
00
A0
5A
00
00
00
1E
66
21
50
B0
E0
51
00
1B
30
40
70
36
00
A0
5A
00
00
00
1E
00
00
F0
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
XX
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
01
00
01
01
01
01
10
01
15
01
03
68
10
09
78
0A
EE
91
A3
54
4C
99
26
20
0F
50
54
A1
08
00
71
40
81
C0
81
00
81
80
95
00
30
90
40
A9
C0
B3
00
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
00
00
00
FC
70
00
4C
47
20
54
56
0A
20
20
20
20
20
20
20
00
98
INPURT
9Eh/9Fh(Physical Add)
FFh(Checksum)
HDMI 1
10
00
11
HDMI 2
20
00
01
HDMI 3
30
00
F1
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
- 11 -
A
RS-232C Command used during auto-adjustment.
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(end)) -> Off-set adj.
wb 00 ff -> End white balance auto-adj.
A
Adj. Map
4.3.5. 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 complete (OK Sign), check adj. status pre
4) Select mode in adj. Program and begin adjustment.
5) When adj. is complete (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 10 cm of the surface.
3) Press ADJ key -> EZ adjust using adjustment remote
control -> 7. 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) Adj. 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 7.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 7.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°)
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.
4.3.6. Reference (White Balance Adj. coordinate and
color 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 9)
(CH 9)
ITEM
Command
Data Range(Hex.)
Default
Cmd 1
Cmd 2
Min
Max
(Decimal)
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
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
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
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
- 12 -
4.3.7. ALELF & EDGE LED White banlance table
- ALELF&EDGE LED module change color coordinate
because of aging time.
- Apply under the color coordinate table, for compensated
aging time.
- EDGE LED - LGD Only
4.4. 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
4.5. 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.
4.6. Local Dimming Function Check
Step 1) Turn on TV.
Step 2) At the Local Dimming mode, module Edge Backlight
Step 2) At the Local Dimming mode, module Edge Backlight
moving right to left Back light of IOP module moving.
Step 3) Confirm the Local Dimming mode.
Step 4) Press “exit” key.
Step 4) Press “exit” key.
4.7. Magic Motion Remote control test
- Equipment : RF Remote control for test, IR-KEY-Code
Remote control for test
- You must confirm the battery power of RF-Remote control
before test(recommend that change the battery per every lot)
- Sequence (test)
1) if you select the ‘start(Mute)’ key on the controller, you
can pairing with the TV SET.
2) You can check the cursor on the TV Screen, when select
the ‘OK’ key on the controller
3) You must remove the pairing with the TV Set by select
‘OK’ Key + ‘Mute’ key on the controller for 5 seconds.
Aging Time
Cool
Medium
Warm
GP3
(Min.)
X
Y
X
Y
X
Y
269
273
285
293
313
329
1
0-2
279
288
295
308
319
338
2
3-5
278
286
294
306
318
336
3
6-9
277
285
293
305
317
335
4
10-19
276
283
292
303
316
333
5
20-35
274
280
290
300
314
330
6
36-49
272
277
288
297
312
327
7
50-79
271
275
287
295
311
325
8
80-149
270
274
286
294
310
324
9
Over 150
269
273
285
293
309
323
Fig.1
Fig.3 Connect the Dongle
Fig.2
Connect
Local Dimming Demo (Edge LED Model)
Local Dimming Demo (IOP & ALEF Model)
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