LG 32LH40 / 32LH41 (CHASSIS:LA92B) Service Manual ▷ View online
8. HDMI Input (PC/DTV)
No
Resolution
H-freq(kHz)
V-freq.(Hz)
Pixel clock(MHz)
Proposed
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
7 800*600
37.879
60.31
40.00
VESA(SVGA)
O
10
1024*768
48.363 60.00
65.00
VESA(XGA)
O
13 1280*768
47.776
59.870
79.5
CVT(WXGA)
X
14 1360*768
47.712
60.015
85.50
VESA
(WXGA)
X
15 1280*1024
63.981
60.020
108.00
VESA
(SXGA)
O
17 1600*1200
75.00
60.00
162
VESA
(UXGA)
O
18
1920*1080 7.5
60
148.5
HDTV
1080P
O
DTV
1 720*480
31.47
60
27.027
SDTV
480P
2 720*480
31.47
59.94
27.00
SDTV
480P
3 1280*720
45.00
60.00
74.25
HDTV
720P
4 1280*720
44.96
59.94
74.176
HDTV
720P
5
1920*1080 33.75 60.00 74.25
HDTV
1080I
6
1920*1080 33.72 59.94 74.176
HDTV
1080I
7
1920*1080 67.500
60
148.50
HDTV
1080P
8 1920*1080
67.432
59.939
148.352
HDTV
1080P
9 1920*1080
27.000
24.000
74.25
HDTV
1080P
10
1920*1080 26.97 23.94
74.176
HDTV
1080P
11
1920*1080 33.75
30.000
74.25
HDTV
1080P
12 1920*1080
33.71
29.97
74.176
HDTV
1080P
- 9 -
- 10 -
ADJUSTMENT INSTRUCTION
1. Application Range
This specification sheet is applied to all of the LCD TV with
LA92B chassis.
LA92B chassis.
2. Specification
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 instrument.
transformer will help protect test instrument.
2) Adjustment must be done in the correct order.
3) The adjustment must be performed in the circumstance of
3) The adjustment must be performed in the circumstance of
25 ±5ºC 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 must keep 100-240V,
50/60Hz.
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.
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. Main PCB check process
- AP C -After Manual-Insertm, executing APC
* Boot file Download
(1) Execute ISP program “Mstar ISP Utility” and then click
“Config” tab.
(2) Set as below, and then click “Auto Detect” and check “OK”
message
If “Error” is displayed, Check connection between
computer, jig, and set.
computer, jig, and set.
(3) Click “Read” tab, and then load download file (XXXX.bin)
by clicking “Read”
(4) Click “Connect” tab. If “Can’t ” is displayed, Check
connection between computer, jig, and set.
(5) Click “Auto” tab and set as below.
(6) Click “Run”.
(7) After downloading, check “OK” message.
(6) Click “Run”.
(7) After downloading, check “OK” message.
* USB S/W Download(*.epk file download)
(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”
filexxx.bin
(5)
(7) .OK
(5)
(6)
(3)
fi lexxx.bin
(1)
(4)
Please Check the Speed :
To use speed between
To use speed between
from 200KHz to 400KHz
(4) Updating is staring.
(5) Updating completed, then the TV will restart automatically.
(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.)
4) Completed selecting Tool option
3.1. Board-level adjustment
• Adjust 480i Component1 adjustment
• Adjust 1080p Component1 adjustment
• Adjust 1024*768 RGB adjustment
• EDID/DDC download
• Adjust 1080p Component1 adjustment
• Adjust 1024*768 RGB adjustment
• 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-Start Menu 1. Adjust
Check.
Assembly if needed. Both Board-level and Final assembly
adjustment items can be check using In-Start Menu 1. Adjust
Check.
3.2. Final assembly adjustment
• EDID/DDC download
• White Balance adjustment
• RS-232C functionality check
• Factory Option setting per destination
• Ship-out mode setting (In-Stop)
• White Balance adjustment
• 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 Option Default
• USB Download(S/W Update, Option)
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
(3) Adjustment
1) Method
• Using RS-232, adjust items listed in 3.1 in the order
shown in “4.1.3.3”.
2) Adjustment protocol
3) Adjustment order
• ad 00 00 [Enter ADC adjustment mode]
• ad 00 10 [Adjust 480i Comp1/1080i Comp1/1024*768
• ad 00 10 [Adjust 480i Comp1/1080i Comp1/1024*768
RGB]
• ad 00 90 [End adjustment mode]
- 11 -
Mode
Tool Option1
Tool Option2
Tool Option3
Tool Option4
32LH40-UA
16641
3400
35748
33792
Protocol Command
Set
ack
Source Input
kb 00 04
b 00 OK04x (Adjust 480i/1080p Comp1 )
Change
kb 00 06
b 00 OK06x (Adjust 1024*768 RGB)
Begin adj.
ad 00 10
Return
OKx (Success)
adj. result
NGx (Fail)
Read
(main)
(main input )
adj. data
ad0020
0000000000000000000000007c007b006dx
(sub )
(Sub input)
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.
ad 00 90
d 00 OK90x
4.2. EDID / DDC download
(The Extended Display Identification Data / Display Data Channel)
(1) Overview
It is a VESA regulation. APC 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
1) Adj. R/C
2) Since embedded EDID data is used, EDID download jig,
2) Since embedded EDID data is used, EDID download jig,
HDMI cable and D-sub cable are not need.
(3) Download method
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.
will 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) EDID DATA
- Reference: Download is only possible in POWER ON
MODE.
1) HDMI I [C/S: 80C1]
EDID Block 0, Bytes 0-127[00H-7FH], Block Type:EDID1.3
EDID Block 1, Bytes 128-255 [80H-FFH]
Block Type : CEA EDID Timing Extension Version3
Block Type : CEA EDID Timing Extension Version3
2) HDMI II [C/S: 7FBA]
EDID Block 0, Bytes 0-127[00H-7FH], Block Type:EDID1.3
EDID Block 0 table =
EDID Block 0 table =
EDID Block 1, Bytes 128-255 [80H-FFH]
Block Type : CEA EDID Timing Extension Version3
Block Type : CEA EDID Timing Extension Version3
4) HDMI III [C/S: 80A1]
EDID Block 0, Bytes 0-127[00H-7FH], Block Type:EDID1.3
EDID Block 1, Bytes 128-255 [80H-FFH]
Block Type : CEA EDID Timing Extension Version3
Block Type : CEA EDID Timing Extension Version3
5) HDMI IV [C/S: 7F9A]
EDID Block 0, Bytes 0-127[00H-7FH], Block Type:EDID1.3
EDID Block 1, Bytes 128-255 [80H-FFH]
Block Type : CEA EDID Timing Extension Version3
Block Type : CEA EDID Timing Extension Version3
- 12 -
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
01
13
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
7F
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
67
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
1F
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
01
13
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
7F
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
67
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
1F
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
01
13
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
7F
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
67
03
0C
00
30
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
1F
40
30
70
20
25
00
7E
8A
42
00
00
1A
00
00
00
00
00
00
AA
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
01
13
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
7F
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
67
03
0C
00
40
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
1F
40
30
70
20
25
00
7E
8A
42
00
00
1A
00
00
00
00
00
00
9A
Click on the first or last page to see other 32LH40 / 32LH41 (CHASSIS:LA92B) service manuals if exist.