LG 47LH90 (CHASSIS:LA92C) Service Manual ▷ View online
- 9 -
ADJUSTMENT INSTRUCTION
1. Application Object
This specification sheet applied to LA92C Chassis applied
LCD TV all models manufactured in TV factory.
LCD TV all models manufactured in TV factory.
2. Notes
(1) Because this is not a hot chassis, it is not necessary to use
an isolation transformer. However, the use of isolation
transformer will help protect test equipment.
transformer will help protect test equipment.
(2) Adjustments must be done in the correct order.
(3) The adjustments must be performed in the circumstance of
(3) The adjustments must be performed in the circumstance of
20±5°C of temperature and 65±10% of relative humidity if
there is no specific designation.
there is no specific designation.
(4) The input voltage of the receiver be must kept 100V-240V,
50/60Hz when adjusting.
(5) The receiver must be operated for about 5 minutes prior to
the adjustment when module is in the circumstance of over
15.
15.
In case of keeping module is in the circumstance of 0°C, it
should be placed in the circumstance of above 15°C for 2
hours
In case of keeping module is in the circumstance of below -
20°C, it should be placed in the circumstance of above
15°C for 3 hours,.
should be placed in the circumstance of above 15°C for 2
hours
In case of keeping module is in the circumstance of below -
20°C, it should be placed in the circumstance of above
15°C for 3 hours,.
Caution : When still image is displayed for a period of 20
minutes or longer (especially where W/B scale is strong.
Digital pattern 13ch and/or Cross hatch pattern 09ch),
there can some afterimage in the black level area.
minutes or longer (especially where W/B scale is strong.
Digital pattern 13ch and/or Cross hatch pattern 09ch),
there can some afterimage in the black level area.
3. Adjustment items
3.1 Board-level adjustment
- Adjust 480i Comp1 adj.(Comp1080i & RGB Adjust use
internal pattern)
- EDID/DDC download
Above adjustment items can be also performed in Final
Assembly if needed. Both Board-level and Final assembly
adjustment items can be check using In-Star Menu 1.ADJUST
CHECK.
Assembly if needed. Both Board-level and Final assembly
adjustment items can be check using In-Star Menu 1.ADJUST
CHECK.
3.2. Final assembly adjustment
- White Balance adjustment
- RS-232C functionality check
- Factory Option setting per destination
- Ship-out mode setting (In-Stop)
- RS-232C functionality check
- Factory Option setting per destination
- Ship-out mode setting (In-Stop)
3.3 Etc
- Ship-out mode
- Service Option Default
- USB Download(S/W Update, Option, Service only)
- Service Option Default
- USB Download(S/W Update, Option, Service only)
4. Board-level adjustment
4.1. ADC 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) Jig (RS-232C protocol)
2) Input : MSPG-925FS(Model : 209 ,Pattern : 65, Only
2) Input : MSPG-925FS(Model : 209 ,Pattern : 65, Only
component))
3) RGB Adjust use internal pattern.
(3) Adjustment
1) Adjustment method
- Using RS-232, adjust items listed in 3.1 in the other
shown in “4.1.3.3”
2) Adj. protocol
Ref.) ADC Adj. RS232C Protocol_Ver1.0
3) Adj. order
- ad 00 00 [Enter ADC adj. mode]
- ad 00 10 [Adjust 480i Comp1]
- ad 00 90 End adj.
- ad 00 10 [Adjust 480i Comp1]
- ad 00 90 End adj.
Protocol
Command
Set ACK
Enter adj. mode
aa 00 00
a 00 OK00x
Begin adj.
ad 00 10
Return adj. result
OKx (Case of Success)
NGx (Case of Fail)
Read adj. data
(main)
(main)
ad 00 20
000000000000000000000000007c007b006dx
(sub)
(Sub)
ad 00 21
000000070000000000000000007c00830077x
Confirm adj.
ad 00 99
NG 03 00x (Fail)
NG 03 01x (Fail)
NG 03 02x (Fail)
OK 03 03x (Success)
End adj.
aa 00 90
a 00 OK90x
- 10 -
4.2 EDID(The Extended Display Identification
Data) / DDC(Display Data Channel) download
Data) / DDC(Display Data Channel) download
4.2.1 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”.
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”.
4.2.2 Equipment
• Adj. R/C
• Since embedded EDID data is used, EDID download jig,
• Adj. R/C
• Since embedded EDID data is used, EDID download jig,
HDMI cable and D-sub cable are not need.
4.2.3 Download method
1) Press Adj. key On the Adj. R/C, press Adj. key then select
1) Press Adj. key On the Adj. R/C, press Adj. key then select
EDID D/L. By pressing Enter key, EDID download will
begin.
begin.
2) If Download is successful, OK is displayed.
3) If Download is a failure, NG is displayed.
4) Re-try download.
3) If Download is a failure, NG is displayed.
4) Re-try download.
4.2.4 EDID DATA
•Reference: Download is only possible in POWER ON MODE.
•Reference: Download is only possible in POWER ON MODE.
HDMI I [C/S: 1DCA]
EDID Block 0, Bytes 0-127 [00H-7FH]
Block Type: EDID 1.3
Block Type: EDID 1.3
EDID Block 1, Bytes 128-255 [80H-FFH]
Block Type: CEA EDID Timing Extension Version 3
Block Type: CEA EDID Timing Extension Version 3
・
HDMI II [C/S: 1DBA]
EDID Block 0, Bytes 0-127 [00H-7FH]
Block Type: EDID 1.3
EDID Block 0, Bytes 0-127 [00H-7FH]
Block Type: EDID 1.3
EDID Block 1, Bytes 128-255 [80H-FFH]
Block Type: CEA EDID Timing Extension Version 3
Block Type: CEA EDID Timing Extension Version 3
・
HDMI III [C/S: 1DAA]
EDID Block 0, Bytes 0-127 [00H-7FH]
Block Type: EDID 1.3
EDID Block 0, Bytes 0-127 [00H-7FH]
Block Type: EDID 1.3
EDID Block 1, Bytes 128-255 [80H-FFH]
Block Type: CEA EDID Timing Extension Version 3
Block Type: CEA EDID Timing Extension Version 3
0x00 0x01 0x02 0x03 0x04 0x05 0x06 0x07 0x08 0x09 0x0A 0x0B 0x0C 0x0D 0x0E 0x0F
0x00 00
FF
FF
FF
FF
FF
FF
00
1E
6D
02
00
01 01
01
01
0x01 01 13
01
03
80
73
41
78
0A
CF
74
A3
57
4C
B0
23
0x02 09
48
4C
A1
08
00
A9
40
81
80
61
40
45
40
31
40
0x03 01
01
01
01
01
01
02
3A
80
18
71
38
2D
40
58
2C
0x04 45
00
7E
8A
42
00
00
1E
01
1D
00
72
51
D0
1E
20
0x05 6E
28
55
00
7E
8A
42
00
00
1E
00
00
00
FD
00
39
0x06 3E
1E
52
10
00
0A
20
20
20
20
20
20
00
00
00
FC
0x07 00
4C
47
20
54
56
0A
20
20
20
20
20
20
20
01
1D
0x00 0x01 0x02 0x03 0x04 0x05 0x06 0x07 0x08 0x09 0x0A 0x0B 0x0C 0x0D 0x0E 0x0F
0x08 02
03
1F
F1
47
10
22
20
05
84
03
02
26
15
07
50
0x09 09
07
07
67
03
0C
00
10
00
88
2D
E3
05
03
01
02
0x0A 3A
80
18
71
38
2D
40
58
2C
04
05
7E
8A
42
00
00
0x0B 1E
01
1D
80
18
71
1C
16
20
58
2C
25
00
7E
8A
42
0x0C 00
00
9E
01
1D
00
72
51
D0
1E
20
6E
28
55
00
7E
0x0D 8A
42
00
00
1E
8C
0A
D0
8A
20
E0
2D
10
10
3E
96
0x0E 00
7E
8A
42
00
00
18
26
36
80
A0
70
38
1F
40
30
0x0F 20
25
00
7E
8A
42
00
00
1A
00
00
00
00
00
00
CA
0x00 0x01 0x02 0x03 0x04 0x05 0x06 0x07 0x08 0x09 0x0A 0x0B 0x0C 0x0D 0x0E 0x0F
0x08 02
03
1F
F1
47
10
22
20
05
84
03
02
26
15
07
50
0x09 09
07
07
67
03
0C
00
20
00
88
2D
E3
05
03
01
02
0x0A 3A
80
18
71
38
2D
40
58
2C
04
05
7E
8A
42
00
00
0x0B 1E
01
1D
80
18
71
1C
16
20
58
2C
25
00
7E
8A
42
0x0C 00
00
9E
01
1D
00
72
51
D0
1E
20
6E
28
55
00
7E
0x0D 8A
42
00
00
1E
8C
0A
D0
8A
20
E0
2D
10
10
3E
96
0x0E 00
7E
8A
42
00
00
18
26
36
80
A0
70
38
1F
40
30
0x0F 20
25
00
7E
8A
42
00
00
1A
00
00
00
00
00
00
BA
0x00 0x01 0x02 0x03 0x04 0x05 0x06 0x07 0x08 0x09 0x0A 0x0B 0x0C 0x0D 0x0E 0x0F
0x00 00
FF
FF
FF
FF
FF
FF
00
1E
6D
02
00
01 01
01
01
0x01 01 13
01
03
80
73
41
78
0A
CF
74
A3
57
4C
B0
23
0x02 09
48
4C
A1
08
00
A9
40
81
80
61
40
45
40
31
40
0x03 01
01
01
01
01
01
02
3A
80
18
71
38
2D
40
58
2C
0x04 45
00
7E
8A
42
00
00
1E
01
1D
00
72
51
D0
1E
20
0x05 6E
28
55
00
7E
8A
42
00
00
1E
00
00
00
FD
00
39
0x06 3F
1F
52
10
00
0A
20
20
20
20
20
20
00
00
00
FC
0x07 00
4C
47
20
54
56
0A
20
20
20
20
20
20
20
01
1D
0x00 0x01 0x02 0x03 0x04 0x05 0x06 0x07 0x08 0x09 0x0A 0x0B 0x0C 0x0D 0x0E 0x0F
0x08 02
03
1F
F1
47
10
22
20
05
84
03
02
26
15
07
50
0x09 09
07
07
67
03
0C
00
10
00
88
2D
E3
05
03
01
02
0x0A 3A
80
18
71
38
2D
40
58
2C
04
05
7E
8A
42
00
00
0x0B 1E
01
1D
80
18
71
1C
16
20
58
2C
25
00
7E
8A
42
0x0C 00
00
9E
01
1D
00
72
51
D0
1E
20
6E
28
55
00
7E
0x0D 8A
42
00
00
1E
8C
0A
D0
8A
20
E0
2D
10
10
3E
96
0x0E 00
7E
8A
42
00
00
18
26
36
80
A0
70
38
1F
40
30
0x0F 20
25
00
7E
8A
42
00
00
1A
00
00
00
00
00
00
AA
0x00 0x01 0x02 0x03 0x04 0x05 0x06 0x07 0x08 0x09 0x0A 0x0B 0x0C 0x0D 0x0E 0x0F
0x00 00
FF
FF
FF
FF
FF
FF
00
1E
6D
02
00
01 01
01
01
0x01 01 13
01
03
80
73
41
78
0A
CF
74
A3
57
4C
B0
23
0x02 09
48
4C
A1
08
00
A9
40
81
80
61
40
45
40
31
40
0x03 01
01
01
01
01
01
02
3A
80
18
71
38
2D
40
58
2C
0x04 45
00
7E
8A
42
00
00
1E
01
1D
00
72
51
D0
1E
20
0x05 6E
28
55
00
7E
8A
42
00
00
1E
00
00
00
FD
00
39
0x06 3F
1F
52
10
00
0A
20
20
20
20
20
20
00
00
00
FC
0x07 00
4C
47
20
54
56
0A
20
20
20
20
20
20
20
01
1D
- 11 -
・
HDMI IV [C/S: 1D9A]
EDID Block 0, Bytes 0-127 [00H-7FH]
Block Type: EDID 1.3
EDID Block 0, Bytes 0-127 [00H-7FH]
Block Type: EDID 1.3
EDID Block 1, Bytes 128-255 [80H-FFH]
Block Type: CEA EDID Timing Extension Version 3
Block Type: CEA EDID Timing Extension Version 3
・
RGB [C/S: 36]
EDID Block 0, Bytes 0-127 [00H-7FH]
Block Type: EDID 1.3
EDID Block 0, Bytes 0-127 [00H-7FH]
Block Type: EDID 1.3
*After Board level adjustment, set volume setting value 0
5.3. White Balance Adjustment
(1) Overview
• W/B adj. Objective & How-it-works
- 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.
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.
(2) Equipment
1) Color Analyzer : CA-210 (White LED Module :
CH14/NCG : CH 9 / WCG: CH12 )
2) Adj. Computer (During auto adj., RS-232C protocol is
needed)
3) Adjust Remocon
4) Video Signal Generator MSPG-925F 720p/216Gray
4) Video Signal Generator MSPG-925F 720p/216Gray
(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) Equipment connection map
(5) Adj. Command (Protocol)
•RS-232C Command used during auto-adj.
Ex) ld 00 00 -> Aging Time
wb 00 00 -> Begin white balance auto-adj.
wb 00 10 -> Gain adj.
ja 00 ff -> Adj. data
jb 00 c0
...
...
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.
*(wb 00 20(Start), wb 00 2f(End)) -> Off-set adj.
wb 00 ff -> End white balance auto-adj.
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
0x00 0x01 0x02 0x03 0x04 0x05 0x06 0x07 0x08 0x09 0x0A 0x0B 0x0C 0x0D 0x0E 0x0F
0x08 02
03
1F
F1
47
10
22
20
05
84
03
02
26
15
07
50
0x09 09
07
07
67
03
0C
00
10
00
88
2D
E3
05
03
01
02
0x0A 3A
80
18
71
38
2D
40
58
2C
04
05
7E
8A
42
00
00
0x0B 1E
01
1D
80
18
71
1C
16
20
58
2C
25
00
7E
8A
42
0x0C 00
00
9E
01
1D
00
72
51
D0
1E
20
6E
28
55
00
7E
0x0D 8A
42
00
00
1E
8C
0A
D0
8A
20
E0
2D
10
10
3E
96
0x0E 00
7E
8A
42
00
00
18
26
36
80
A0
70
38
1F
40
30
0x0F 20
25
00
7E
8A
42
00
00
1A
00
00
00
00
00
00
9A
0x00 0x01 0x02 0x03 0x04 0x05 0x06 0x07 0x08 0x09 0x0A 0x0B 0x0C 0x0D 0x0E 0x0F
0x00 00
FF
FF
FF
FF
FF
FF
00
1E
6D
02
00
01 01
01
01
0x01 01 13
01
03
80
73
41
78
0A
CF
74
A3
57
4C
B0
23
0x02 09
48
4C
A1
08
00
A9
40
81
80
61
40
45
40
31
40
0x03 01
01
01
01
01
01
02
3A
80
18
71
38
2D
40
58
2C
0x04 45
00
7E
8A
42
00
00
1E
01
1D
00
72
51
D0
1E
20
0x05 6E
28
55
00
7E
8A
42
00
00
1E
00
00
00
FD
00
39
0x06 3F
1F
52
10
00
0A
20
20
20
20
20
20
00
00
00
FC
0x07 00
4C
47
20
54
56
0A
20
20
20
20
20
20
20
01
1D
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
00
00
FF
FF
FF
FF
FF
FF
00
1E
6D
02
00 01
01
01
01
10
01
13
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
36
- 12 -
(6) 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
• 42/47/55LH90-UB
• standard color coordinate and temperature using CS-
1000
• 42/47/55LH90-UB
• standard color coordinate and temperature using CS-
1000
5.4 Option selection per country
(1) Overview
- Option selection is only done for models in Non-USA
- Applied model: LA92C 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
5.5 EYE-Q function check
Step 1) Turn on TV
Step 2) Press EYE key of Adj. R/C
Step 3) Cover the Eye Q II sensor on the front of the using
Step 2) Press EYE key of Adj. R/C
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 lignt )” . If after 6
seconds, R/G/B value is not lower than 10, replace
Eye Q II sensor
seconds, 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
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
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