LG 42LH30 (CHASSIS:LA92A) Service Manual ▷ View online
(2) Confirmation
1) We confirm whether “0xBF(480i)/0xC8(1080i)” address
of EEPROM “0xA2” is “0xAA” or not.
2) If “0xBF(480i)/0xC8(1080i)” address of EEPROM “0xA2”
isn’t “0xAA”, we adjust once more.
3) We can confirm the ADC values from “0xB ~0xBE(480i)/
0xC2~(1080i)” addresses in a page “0xA2”.
* Manual ADC Confirmation using Service Remocon. After
enter Service Mode by pushing “INSTART” key.
5. Manual Adjustment
5.1. ADC(Saturn5) Adjustment
(1) Overview
ADC adjustment is needed to find the optimum black level
and gain in Analog-to-Digital device and to compensate
RGB deviation.
and gain in Analog-to-Digital device and to compensate
RGB deviation.
(2) Equipment & Condition
1) Adjust Remocon
2) 801GF(802B, 802F, 802R) or MSPG925FA Pattern
2) 801GF(802B, 802F, 802R) or MSPG925FA Pattern
Generator
- Resolution: 480i, 1024*768
- Pattern : Horizontal 100% Color Bar Pattern
- Pattern level: 0.7±0.1 Vp-p
- Image
- Pattern : Horizontal 100% Color Bar Pattern
- Pattern level: 0.7±0.1 Vp-p
- Image
3) Must use standard cable
(3) Adjust method
• ADC 480i Comp1
1) Check connected condition of Comp1 cable to the
equipment
2) Give a 480i Mode, Horizontal 100% Color Bar Pattern
to Comp1.
(MSPG-925FA Ë Model: 209, Pattern: 65)
3) Change input mode as Component1 and picture mode
as “Standard”
4) Press the In-start Key on the ADJ remote after at least
1 min of signal reception. Then, select 7. External ADC
-> 1. COMP 480i on the menu. Press enter key. The
adjustment will start automatically.
-> 1. COMP 480i 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.
displayed.
6) If ADC calibration is failure, after recheck ADC pattern
or condition retry calibration. Error message refer to (v)
• ADC 1024*768 RGB
1) Check connected condition of Component & RGB
cable to the equipment
2) Give a 1024*768 Mode, 100% Horizontal Color Bar
Pattern to RGB port.
(MSPG-925 Series Ë model:60 , pattern:65 )
3) Change input mode as RGB and picture mode as
“Standard”
4) Press the In-start Key on the ADJ remote after at least
1 min of signal reception. Then, select 7. External ADC
-> 1. COMP 480i on the menu. Press enter key. The
adjustment will start automatically.
-> 1. COMP 480i 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.
displayed.
6) If ADC calibration is failure, after recheck ADC pattern
or condition retry calibration
Error message refer to 5)
5.2. EDID(The Extended Display Identification
Data)/DDC(Display Data Channel) download
Reference : Download is only possible in POWER ONLY
MODE
(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
- Since embedded EDID data is used, EDID download JIG,
HDMI cable and D-sub cable are not need.
- Adjust remocon
(3)Download method
1) Press Adj. key on the Adj. R/C,
2) Select EDID D/L menu.
3) By pressing Enter key, EDID download will begin
4) If Download is successful, OK is display, but If
2) Select EDID D/L menu.
3) By pressing Enter key, EDID download will begin
4) If Download is successful, OK is display, but If
Download is failure, NG is displayed.
5) If Download is failure, Re-try download.
Caution) When EDID download, must remove RGB/HDMI cable.
(4) EDID DATA
1) HDMI 1 [C/S: XXBA]
- EDID Block 0 table =
- 10 -
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
02
00
01
01
01
01
10
XX
XX
01
03
80
73
41
78
0A
CF
74
A3
57
4C
B0
23
20
09
48
4C
A1
08
00
A9
40
81
80
61
40
45
40
31
40
30
01
01
01
01
01
01
02
3A
80
18
71
38
2D
40
58
2C
40
45
00
7E
8A
42
00
00
1E
01
1D
00
72
51
D0
1E
20
50
6E
28
55
00
7E
8A
42
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
XX
- EDID Block 1 table =
2) HDMI 2 [C/S: XXAA]
- EDID Block 0 table =
- EDID Block 1 table =
3) HDMI 3 [C/S: XX9A]
- EDID Block 0 table =
- EDID Block 1 table =
4) RGB [C/S : XX]
- EDID Block 0 table =
* Address 10/11 and 7F means Manufacture Week and
Checksum. So this data will be change.
5.3. White Balance Adjustment
(1) Overview
- Objective: To reduce each Panel’s W/B deviation
- How-it-works : When R/G/B gain in the OSD is at 192, it
- 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.
- Adj. condition : normal temperature
1) Surrounding Temperature: 25±5ºC
2) Warm-up time: About 5 Min
3) Surrounding Humidity: 20% ~ 80%
2) Warm-up time: About 5 Min
3) Surrounding Humidity: 20% ~ 80%
(2) Equipment
1) Color Analyzer: CA-210 (NCG: CH 9 / WCG: CH12)
2) Adj. Computer(During auto adj., RS-232C protocol is
2) Adj. Computer(During auto adj., RS-232C protocol is
needed)
3) Adjust Remocon
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
• Color Analyzer Matrix should be calibrated using CS-1000.
(3) Equipment connection MAP
(4) Adj. Command (Protocol)
1) 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. complete
*(wb 00 20(start), wb 00 2f(end)) -> Off-set adj.
wb 00 ff -> End white balance auto adj.
ja 00 ff -> Adj. data
jb 00 c0
...
...
wb 00 1f -> Gain adj. complete
*(wb 00 20(start), wb 00 2f(end)) -> Off-set adj.
wb 00 ff -> End white balance auto adj.
- 11 -
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
0
02
03
1F
F1
47
90
22
20
05
04
03
02
26
15
07
50
10
09
07
07
6B
03
0C
00
10
00
B8
2D
E3
05
03
01
02
20
3A
80
18
71
38
2D
40
58
2C
04
05
7E
8A
42
00
00
30
1E
01
1D
80
18
71
1C
16
20
58
2C
25
00
7E
8A
42
40
00
00
9E
01
1D
00
72
51
D0
1E
20
6E
28
55
00
7E
50
8A
42
00
00
1E
8C
0A
D0
8A
20
E0
2D
10
10
3E
96
60
00
7E
8A
42
00
00
18
26
36
80
A0
70
38
1B
40
30
70
20
25
00
7E
8A
42
00
00
1A
00
00
00
00
00
00
CA
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
02
00
01
01
01
01
10
XX
XX
01
03
80
73
41
78
0A
CF
74
A3
57
4C
B0
23
20
09
48
4C
A1
08
00
A9
40
81
80
61
40
45
40
31
40
30
01
01
01
01
01
01
02
3A
80
18
71
38
2D
40
58
2C
40
45
00
7E
8A
42
00
00
1E
01
1D
00
72
51
D0
1E
20
50
6E
28
55
00
7E
8A
42
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
XX
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
0
02
03
1F
F1
47
90
22
20
05
04
03
02
26
15
07
50
10
09
07
07
6B
03
0C
00
20
00
B8
2D
E3
05
03
01
02
20
3A
80
18
71
38
2D
40
58
2C
04
05
7E
8A
42
00
00
30
1E
01
1D
80
18
71
1C
16
20
58
2C
25
00
7E
8A
42
40
00
00
9E
01
1D
00
72
51
D0
1E
20
6E
28
55
00
7E
50
8A
42
00
00
1E
8C
0A
D0
8A
20
E0
2D
10
10
3E
96
60
00
7E
8A
42
00
00
18
26
36
80
A0
70
38
1B
40
30
70
20
25
00
7E
8A
42
00
00
1A
00
00
00
00
00
00
BA
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
02
00
01
01
01
01
10
XX
XX
01
03
80
73
41
78
0A
CF
74
A3
57
4C
B0
23
20
09
48
4C
A1
08
00
A9
40
81
80
61
40
45
40
31
40
30
01
01
01
01
01
01
02
3A
80
18
71
38
2D
40
58
2C
40
45
00
7E
8A
42
00
00
1E
01
1D
00
72
51
D0
1E
20
50
6E
28
55
00
7E
8A
42
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
XX
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
0
02
03
1F
F1
47
90
22
20
05
04
03
02
26
15
07
50
10
09
07
07
6B
03
0C
00
20
00
B8
2D
E3
05
03
01
02
20
3A
80
18
71
38
2D
40
58
2C
04
05
7E
8A
42
00
00
30
1E
01
1D
80
18
71
1C
16
20
58
2C
25
00
7E
8A
42
40
00
00
9E
01
1D
00
72
51
D0
1E
20
6E
28
55
00
7E
50
8A
42
00
00
1E
8C
0A
D0
8A
20
E0
2D
10
10
3E
96
60
00
7E
8A
42
00
00
18
26
36
80
A0
70
38
1B
40
30
70
20
25
00
7E
8A
42
00
00
1A
00
00
00
00
00
00
AA
Co lo r An alyzer
Co m p ut er
Pat t ern Gen erat o r
RS -232C
RS -232C
RS -232C
Probe
Signal Source
* If TV internal pattern is used, not needed
Connection Diagram of Automatic Adjustment
RS-232C COMMAND
Meaning
[CMD
ID
DATA]
wb
00
00
Begin White Balance adj.
wb
00
ff
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
02
00
01
01
01
01
10
XX
XX
01
03
68
73
41
78
0A
CF
74
A3
57
4C
B0
23
20
09
48
4C
A1
08
00
A9
40
81
80
61
40
45
40
31
40
30
01
01
01
01
01
01
02
3A
80
18
71
38
2D
40
58
2C
40
45
00
7E
8A
42
00
00
1E
01
1D
00
72
51
D0
1E
20
50
6E
28
55
00
7E
8A
42
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
00
XX
2) Adjustment Map
(5) Adj. method
• 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 adj.
5) When adj. is complete (OK Sing), check adj. status pre
4) Select mode in adj. Program and begin adj.
5) When adj. is complete (OK Sing), check adj. status pre
mode (Warm, Medium, Cool)
6) Remove probe and RS-232C cable to complete adj.
* W/B Adj. must begin as start command “wb 00 00”, and
finish as end command “wb 00 ff”, and Adj. offset if
need
need
• Manual adj. method
1) Set TV in Adj. mode using POWER ON
2) Zero Calibrate the probe of Color Analyzer, then place
2) Zero Calibrate the probe of Color Analyzer, then place
it on the center of LCD module within 10cm of the
surface..
surface..
3) Press ADJ key -> EZ adjust using adj. R/C > 6. White-
Balance then press the cursor to the 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.
value.
5) Adj. is performed in COOL, MEDIUM, WARM 3 modes
of color temperature.
- If internal pattern is not available, use RF input. In EZ
Adj. menu 6.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.
Test-pattern: ON, OFF. Default is inner(ON). By
selecting OFF, you can adjust using RF signal in 216
Gray pattern.
* 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
- LCD: Color Analyzer (CA-210) probe should be
within 10cm and perpendicular of the module
surface (80°~ 100°)
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.
(6) Reference (White Balance Adj. coordinate and color
temperature)
• Luminance: 216 Gray
• Standard color coordinate and temperature using CS-
• Standard color coordinate and temperature using CS-
1000 (over 26 inch)
• Standard color coordinate and temperature using CA-
210(CH 9)
5.4. HDCP SETTING
- HDCP setting is not necessary in Saturn5 model.
5.5 Option selection per country
(1) Overview
- Option selection is only done for models in Non-USA
- Applied model: LA92A Chassis applied None USA
model(CANADA, MEXICO)
(2) Method
1) Press ADJ key on the Adj. R/C, then select Country
Group Menu
2) Depending on destination, select KR or US, then on the
lower Country option, select US, CA, MX. Selection is
done using +, - KEY
done using +, - KEY
- 12 -
ITEM
Command
Data Range
Default
(Hex.)
(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
Mode
Color Coordination
Temp
∆UV
x
y
COOL
0.276
0.283
11000K
0.0000
MEDIUM
0.285
0.293
9300K
0.0000
WARM
0.313
0.329
6500K
0.0000
Mode
Color Coordination
Temp
∆UV
x
y
COOL
0.276±0.002
0.283±0.002
11000K
0.0000
MEDIUM
0.285±0.002
0.293±0.002
9300K
0.0000
WARM
0.313+0.002
0.329±0.002
6500K
0.0000
- 13 -
5.6. Tool Option selection
• Method: Press Adj. key on the Adj. R/C, then select Tool
option.
option.
5.7. Ship-out mode check (In-stop)
• After final inspection, press In-Stop key of the Adj. R/C and
check that the unit goes to Stand-by mode.
• After final inspection, Always turn on the Mechanical S/W.
6.1. 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.
6.2. Checkpoint
• TEST voltage
- GND: 1.5KV/min at 100mA
- SIGNAL: 3KV/min at 100mA
- SIGNAL: 3KV/min at 100mA
• TEST time: 1 second
• TEST POINT
• TEST POINT
- GND TEST = POWER CORD GND & SIGNAL CABLE
METAL GND
NEUTRAL
• LEAKAGE CURRENT: At 0.5mArms
7. USB S/W Download (option)
(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
automatically detecting
(3) Show the message “Copying files from memory”
(4) Updating is staring.
(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 controller.
2) Select "Tool Option 1" and Push “OK” button.
3) Punch in the number. (Each model has their number.)
2) Select "Tool Option 1" and Push “OK” button.
3) Punch in the number. (Each model has their number.)
Model
Tool1 Tool2 Tool3 Tool4
Menu
42LH30 24705 2600
932
1152 3HDMI, CAN Tuner, 1RCA
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