LG 32LB4DS (CHASSIS:LA73A) Service Manual ▷ View online
- 9 -
8. HDMI Input (PC / DTV)
No.
Resolution
H-freq(kHz)
V-freq(Hz)
Pixel clock(MHz)
Remark
PC
DDC
1
640*350
31.468
70.09
25.17
EGA
X
2
720*400
31.469
70.08
28.32
DOS
O
3
640*480
31.469
59.94
25.17
VESA(VGA)
O
4
640*480
37.861
72.80
31.50
VESA(VGA)
O
5
640*480
37.500
75.00
31.50
VESA(VGA)
O
6
800*600
35.156
56.25
36.00
VESA(SVGA)
O
7
800*600
37.879
60.31
40.00
VESA(SVGA)
O
8
800*600
48.077
72.18
50.00
VESA(SVGA)
O
9
800*600
46.875
75.00
49.50
VESA(SVGA)
O
10
1024*768
48.363
60.00
65.00
VESA(XGA)
O
11
1024*768
56.476
70.06
75.00
VESA(XGA)
O
12
1024*768
60.023
75.02
78.75
VESA(XGA)
O
13
1280*768
47.776
59.870
79.5
CVT(WXGA)
O
14
1360*768
47.712
60.015
85.50
VESA (WXGA)
O
15
1280*1024
63.981
60.020
108.00
VESA (SXGA)
O
16
1280*1024
79.976
75.025
135
VESA (SXGA)
O
17
1600*1200
75.00
60.00
162
VESA (UXGA)
O
18
1920*1080
67.5
60
148.5
HDTV 1080P
O
DTV
1
720*480
31.47
60
SDTV 480P
2
720*480
31.47
59.94
SDTV 480P
3
1280*720
45.00
60.00
HDTV 720P
4
1280*720
44.96
59.94
HDTV 720P
5
1920*1080
33.75
60.00
HDTV 1080I
6
1920*1080
33.72
59.94
HDTV 1080I
7
1920*1080
67.500
60
HDTV 1080P
8
1920*1080
67.432
59.939
HDTV 1080P
9
1920*1080
27.000
24.000
HDTV 1080P
10
1920*1080
26.97
23.94
HDTV 1080P
11
1920*1080
33.75
30.000
HDTV 1080P
12
1920*1080
33.71
29.97
HDTV 1080P
- 10 -
ADJUSTMENT INSTRUCTION
1. Application Object
These instructions are applied to all of the LCD TV models
with LA73A chassis.
with LA73A chassis.
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 220V, 60Hz
when adjusting.
(5) The receiver must be operational for about 15 minutes
prior to the adjustments.
* Perform preliminary operation after receiving 100% White
Pattern (06CH).(or 8. White Pattern status of Ez-Adjust)
* How to enter White Pattern
1) Press the POWER ON key on the adjustment remote
control or press the ADJ key on the adjustment remote
control to enter Ez-Adjust.
control to enter Ez-Adjust.
2) Select the ‘10.Test Pattern’ using the CH + / - key and
then select White using the arrow keys to display the
100% FULL WHITE PATTERN.
100% FULL WHITE PATTERN.
- In this mode, It is possible to heat run the set without
separate signal generator.
Caution : When you keep the still screen on for more than
20 minutes (Especially internal digital pattern (13 CH),
Cross Hatch Pattern (09CH) with higher black/white
contrast), be careful not to create residual image on the
black level part.
20 minutes (Especially internal digital pattern (13 CH),
Cross Hatch Pattern (09CH) with higher black/white
contrast), be careful not to create residual image on the
black level part.
3. Board adjustment
3-1. Adjustment method using RS-232C
(1) Adjustment protocol
note) ADC adjustment RS232C Protocol_Ver 1.0
(2) Necessary details before adjustment
- Pattern Generator : (MSPG-925FA)
- AV1 input (MSPG-925FA : model :201 , pattern :33)
- Adjust 480i Comp1(MSPG-925FA: mode:209, pattern:65)
- Adjust 1080p Comp1/RGB
- AV1 input (MSPG-925FA : model :201 , pattern :33)
- Adjust 480i Comp1(MSPG-925FA: mode:209, pattern:65)
- Adjust 1080p Comp1/RGB
(MSPG-925FA:model:225, pattern:65)
- RS232C ECHO exists for Everest3 Set
For details on the necessary requirement, refer to the
following adjustment method.
following adjustment method.
(3) Adjustment order
- ad 00 00 Enter ADC adjustment mode.
- kb 00 01 Switch RF input (Input is not switched)
- ad 00 10 Adjust RF and Video (Input is switched and
- kb 00 01 Switch RF input (Input is not switched)
- ad 00 10 Adjust RF and Video (Input is switched and
adjusted)
- kb 00 04 Switch component1 input (Input is not switched)
- ad 00 10 Adjust 480i Comp1 (Input is switched and
- ad 00 10 Adjust 480i Comp1 (Input is switched and
adjusted)
- kb 00 06 Switch RGB-DTV input (Actual input is not
switched)
- ad 00 10 Adjust 1080p Comp1/RGB (Input is switched
and adjusted)
- ad 00 90 Complete adjustment
3-2. Adjustment of RF/AV/S-VIDEO
(1) Introduction
This is a adjustment to reduce the color difference of video
signal
signal
(2) Adjustment method
1) Connect the Video Signal Generator (Master) to TV AV
input terminal with AV output. At this time, when you
enter the input pattern as Model : 201(NTSC-M) ,
Pattern : 33(100% color Bar), the following video is
displayed on the screen.
enter the input pattern as Model : 201(NTSC-M) ,
Pattern : 33(100% color Bar), the following video is
displayed on the screen.
Note: When the video is shown as follows showing
black patterns from the left, it cannot be adjusted.
black patterns from the left, it cannot be adjusted.
Order
Adjuster command
Set response
Enter adjustment mode
ad 00 00
d 00 OK00x
Switch source
kb 00 01
b 00 OK01x (Adjust RF and Video)
kb 00 04
b 00 OK04x (Adjust 480i Comp1)
kb 00 06
b 00 OK06x (Adjust 1080p Comp1/RGB)
Start adjustment
ad 00 10
Return adjustment result
OKx (When succeeded)
NGx (When failed )
Read adjustment data
(main)
(For main)
ad 00 20
000000000000000000000000007c007b006dx
(sub)
(For sub)
ad 00 21
000000070000000000000000007c00830077x
Check adjustment
ad 00 99
NG 03 00x (When failed)
NG 03 01x (When failed)
NG 03 02x (When failed)
OK 03 03x (When succeeded)
Complete adjustment
ad 00 90
d 00 OK90x
<Fig 1> Model : 201(NTSC-M) , Pattern : 33(100% color Bar)
<Fig, 2>
In this case, first press the Rev button of Video Signal
Generator (Master), to generate the white pattern to be
displayed from the left.
Generator (Master), to generate the white pattern to be
displayed from the left.
* Because the above pattern can differ by the model
and pattern for each device, you must check the
pattern first.
pattern first.
2) When the receiving signal is confirmed after inputting
the internal signal, press the ADJ key on the adjustment
remote control to enter ‘EZ-ADJUST’. Select ‘5.Adjust
RF and Video’ and press the right key (
remote control to enter ‘EZ-ADJUST’. Select ‘5.Adjust
RF and Video’ and press the right key (
G
) to enter the
adjustment mode.
3) When you enter the adjustment mode, the video is
automatically set to TV 2CH and the following window is
displayed.
displayed.
4) When the adjustment is completed, a message saying
‘RF Configuration Success’ is displayed. If the
adjustment has failed, a message saying ‘RF
Configuration Error’ is displayed.
adjustment has failed, a message saying ‘RF
Configuration Error’ is displayed.
5) When the automatic adjustment of RF signal is
completed, it is automatically switched to the Video
Mode as shown in the above picture, and automatic
adjustment for Video Mode is done. When the
automatic adjustment is completed, a message saying
‘Video Configuration Success’ is displayed. If the
adjustment has failed, a message saying ‘Video
Configuration Error’ is displayed.
Mode as shown in the above picture, and automatic
adjustment for Video Mode is done. When the
automatic adjustment is completed, a message saying
‘Video Configuration Success’ is displayed. If the
adjustment has failed, a message saying ‘Video
Configuration Error’ is displayed.
* Check RS-232C operation
Press the Instart of adjustment R/C to enter the 7.Baud Rate
menu and set the Baud Rate to 115200 to check the 232-C
operation.
menu and set the Baud Rate to 115200 to check the 232-C
operation.
4. Set adjustment
4-1. Adjustment of Component 480i/ 1080p,
RGB 1080p
(1) Introduction
The Component 480i/1080p RGB 1080p adjustment sets
the optimal black level and gain automatically from the
analog => digital converter, and is the function to correct
the RGB deviation.
the optimal black level and gain automatically from the
analog => digital converter, and is the function to correct
the RGB deviation.
(2) Required Equipment
Adjustment remote controller, 801GF (802B, 802F, 802R)
or MSPG925FA Pattern Generator (480i/1080P Horizontal
100% Color Bar Pattern output must be possible and
output level must be adjusted accurately to 0.7±0.1Vp-p.)
or MSPG925FA Pattern Generator (480i/1080P Horizontal
100% Color Bar Pattern output must be possible and
output level must be adjusted accurately to 0.7±0.1Vp-p.)
* Because the above pattern can differ by the model and pattern
for each device, you must check the pattern first.
(3) 480i Comp1, 1080p Comp1/RGB adjustment
method
1) ADC 480i component1 adjustment
- Check Component1 connected condition from the
using device.
- (MSPG-925FA : -> model :209 , pattern :65 )
2) Input Component 100% Horizontal Color Bar Pattern
(HozTV31Bar) of 480i Mode that is supported, select
the input to Component1 and select the video to
‘Normal’.
the input to Component1 and select the video to
‘Normal’.
3) Wait for more than 1 second after receiving the signal
and then press the ADJ KEY on the adjustment R/C to
enter ‘Ez – Adjust’. Select ‘3. ADC 480i Comp1’ and
press the Enter KEY to make the automatic adjustment.
enter ‘Ez – Adjust’. Select ‘3. ADC 480i Comp1’ and
press the Enter KEY to make the automatic adjustment.
4) When the adjustment is normally completed, a message
saying “ADC Component1 Success” is displayed.
5) When the adjustment is not normally completed, a
message saying ‘ADC Component1 480i Fail’ is
displayed. When the component is not connected, a
message saying ‘Component1 Not Connected’, when
the input format is not 480i, a message saying ‘Not
Valid Format’ and when the input signal is not coming
out, a message saying ‘Check Signal Status’ is
displayed for 1 second.
displayed. When the component is not connected, a
message saying ‘Component1 Not Connected’, when
the input format is not 480i, a message saying ‘Not
Valid Format’ and when the input signal is not coming
out, a message saying ‘Check Signal Status’ is
displayed for 1 second.
6) ADC 1080P Component1/RGB adjustment
- Check the Component1, RGB connected condition
from the using device.
- (MSPG-925FA : --> model :225 , pattern :65 )
7) Input Component 100% Horizontal Color Bar Pattern
(HozTV31Bar) of 480i Mode that is supported, select
the input to Component1 and select the video to
‘Normal’.
the input to Component1 and select the video to
‘Normal’.
- 11 -
<Fig, 4>
<Fig, 3>
<Fig. 6> Adjustment pattern : 480i / 1080P 60Hz Pattern
<Fig 5>
- 12 -
8) Wait for more than 1 second after receiving the signal
and then press the ADJ KEY on the adjustment R/C to
enter ‘Ez – Adjust’. Select ‘4. ADC 1080P Comp1/RGB’
and press the Enter KEY to make the automatic
adjustment for component 1 first.
enter ‘Ez – Adjust’. Select ‘4. ADC 1080P Comp1/RGB’
and press the Enter KEY to make the automatic
adjustment for component 1 first.
9) When the adjustment is normally completed, a message
saying “ADC Component1 Success” is displayed, and
when the adjustment is not normally completed, a
message saying ‘ADC Component1 1080P Fail’ is
displayed.
when the adjustment is not normally completed, a
message saying ‘ADC Component1 1080P Fail’ is
displayed.
10) After the Component1 adjustment is completed, it is
automatically switch to RGB-DTV Mode to start RGB
adjustment. When the adjustment is normally
completed, a message saying “ADC RGB 1080P
Success” is displayed.
adjustment. When the adjustment is normally
completed, a message saying “ADC RGB 1080P
Success” is displayed.
11) When the adjustment is not normally completed, make
the adjustment again after checking the pattern or
adjustment condition. The error message is as 5).
adjustment condition. The error message is as 5).
12) When the adjustment is completed, press the ADJ key
to exit.
4-2. EDID
(The Extended Display Identification Data)
/DDC
(Display Data Channel)
Download
This has been established by VESA and is the function
created to “Plug and Play” by making the computer
reconfigure user environment through communication with the
monitor automatically without having the user set commands
directly to the PC or the monitor so that the user can use it
immediately.
created to “Plug and Play” by making the computer
reconfigure user environment through communication with the
monitor automatically without having the user set commands
directly to the PC or the monitor so that the user can use it
immediately.
* When writing EDID, use DDC2B protocol.
(1) HDMI EDID Data Input
1) Required Test Equipment
- PC, Jig for adjusting DDC. (PC serial to D-sub
Connection equipment)
- S/W for writing DDC (EDID data write & read)
- D-Sub cable
- Jig for HDMI Cable connection
- D-Sub cable
- Jig for HDMI Cable connection
2) Adjustment preparation & device configuration
- Configure as Fig. 7, and turn on the PC
- Turn on the JIG.
- Run the DDC recording S/W (EDID Data Write &
- Turn on the JIG.
- Run the DDC recording S/W (EDID Data Write &
Read). (Execute in DOS mode)
(2) EDID DATA for LA73A
- EDID for HDMI-1 (DDC (Display Data Channel) Data)
EDID table =
- EDID for HDMI-2 (DDC (Display Data Channel) Data)
- EDID for HDMI-3 (DDC (Display Data Channel) Data)
LCD TV SET
(or Digital Board)
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
00
11
01
03
80
73
41
96
0A
CF
74
A3
57
4C
B0
23
20
09
48 4C
AF CF
00
31
40
45
40
61
40
81
80
A9
40
30
01
01
01
01
01
01
66
21
50
B0
51
00
1B
30
40
70
40
36
00 C4
8E
21
00
00
1E
02
3A
80
18
71
38
2D
40
50
58 2C 45
00
C4
8E
21
00
00
1E
00
00
00
FD
00
30
60
58
1F
64
11
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
8A
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
0
02
03
17
F1
47
84
05
03
02
20
22
10
23
15
07
50
10
66
03 0C
00
10
00
80
01
1D
00
72
51
D0
1E
20
6E
20
28
55
00
C4
8E
21
00
00
1E
01
1D
80
18
71
1C
16
30
20
58 2C
25
00
C4
8E
21
00
00
9E
8C
0A
D0
8A
20
40
E0 2D 10
10
3E
96
00
C4
8E
21
00
00
18
8C
0A
D0
50
8A 20
E0
2D
10
10
3E
96
00
13
8E
21
00
00
18
0E
60
1F
00
80
51
00
1E
30
40
80
37
00
C4
8E
21
00
00
70
1C 00
00
00
00
00
00
00
00
00
00
00
00
00
00
41
<Fig 7> Device configuration diagram for HDMI EDID data input
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
00
11
01
03
80
73
41
96
0A
CF
74
A3
57
4C
B0
23
20
09
48 4C
AF CF
00
31
40
45
40
61
40
81
80
A9
40
30
01
01
01
01
01
01
66
21
50
B0
51
00
1B
30
40
70
40
36
00 C4
8E
21
00
00
1E
02
3A
80
18
71
38
2D
40
50
58 2C 45
00
C4
8E
21
00
00
1E
00
00
00
FD
00
30
60
58
1F
64
11
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
8A
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
0
02
03
17
F1
47
84
05
03
02
20
22
10
23
15
07
50
10
66
03 0C
00
20
00
80
01
1D
00
72
51
D0
1E
20
6E
20
28
55
00
C4
8E
21
00
00
1E
01
1D
80
18
71
1C
16
30
20
58 2C
25
00
C4
8E
21
00
00
9E
8C
0A
D0
8A
20
40
E0 2D 10
10
3E
96
00
C4
8E
21
00
00
18
8C
0A
D0
50
8A 20
E0
2D
10
10
3E
96
00
13
8E
21
00
00
18
0E
60
1F
00
80
51
00
1E
30
40
80
37
00
C4
8E
21
00
00
70
1C 00
00
00
00
00
00
00
00
00
00
00
00
00
00
31
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
00
11
01
03
80
73
41
96
0A
CF
74
A3
57
4C
B0
23
20
09
48 4C
AF CF
00
31
40
45
40
61
40
81
80
A9
40
30
01
01
01
01
01
01
66
21
50
B0
51
00
1B
30
40
70
40
36
00 C4
8E
21
00
00
1E
02
3A
80
18
71
38
2D
40
50
58 2C 45
00
C4
8E
21
00
00
1E
00
00
00
FD
00
30
60
58
1F
64
11
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
8A
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
0
02
03
17
F1
47
84
05
03
02
20
22
10
23
15
07
50
10
66
03 0C
00
30
00
80
01
1D
00
72
51
D0
1E
20
6E
20
28
55
00
C4
8E
21
00
00
1E
01
1D
80
18
71
1C
16
30
20
58 2C
25
00
C4
8E
21
00
00
9E
8C
0A
D0
8A
20
40
E0 2D 10
10
3E
96
00
C4
8E
21
00
00
18
8C
0A
D0
50
8A 20
E0
2D
10
10
3E
96
00
13
8E
21
00
00
18
0E
60
1F
00
80
51
00
1E
30
40
80
37
00
C4
8E
21
00
00
70
1C 00
00
00
00
00
00
00
00
00
00
00
00
00
00
21
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