LG 32LU25 (CHASSIS:LA85D) Service Manual ▷ View online
- 8 -
No. Specification
Remark
Resolution H-freq(kHz)
V-freq(Hz)
Pixel
clock(MHz)
PC
DDC
1
640*350
31.469
70.08
25.17
DOS
2
720*400
31.469
70.08
28.32
DOS
O
3
640*480
31.469
59.94
25.17
VESA(VGA)
O
4
800*600
37.879
60.31
40.00
VESA(SVGA)
O
5
1024*768
48.363
60.00
65.00
VESA(XGA)
O
6
1280*768
47.776
59.87
79.50
CVT(WXGA)
O
7
1360*768
47.720
59.799
84.75
CVT(WXGA)
O
8
1366*768
47.13
59.65
72
7. RGB input (PC)
8. HDMI input (PC/DTV)
No. Resolution
H-freq(kHz) V-freq(Hz)
Pixel
clock(MHz)
Remark
PC
DDC
1. 640*480
31.469
59.94
25.17
VESA(VGA)
O
2. 800*600
37.879
60.31
40.00
VESA(SVGA)
O
3. 1024*768
48.363
60.00
65.00
VESA(XGA)
O
4. 1280*768
47.776
59.87
79.50
CVT(WXGA)
O
5. 1360*768
47.720
59.799
84.75
CVT(WXGA)
O
6. 1366*768
47.13
59.65
72
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
23.976
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
1. Application Object
These instructions are applied to all of the LCD TV, LA85D.
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.
(6) Perform preliminary operation after receiving 100% White
Pattern (06CH). (Or 3. White Pattern status of Ez-Adjust)
(7) White Pattern entry method
1) Enter into Ez-Adjust by pressing the ADJ key on the
adjustment R/C.
2) 100% FULL WHITE PATTERN appears if pressing the
OK (
A
) key after selecting the 3.WHITE PATTERN with
the CH + / - KEY.
* It is possible to heat run the set without a separate signal
generator in this mode.
Caution : Care must be taken as afterimage phenomena
may occur about the black level part of screen If leaving
pause image turned on for more than 20 minutes
(especially inner digital pattern (13 CH), Cross Hatch
Pattern (09CH) with significant black/white contrast).
may occur about the black level part of screen If leaving
pause image turned on for more than 20 minutes
(especially inner digital pattern (13 CH), Cross Hatch
Pattern (09CH) with significant black/white contrast).
3. ADC Adjustment
3-1. PC input ADC
(1) Auto RGB Gain/Offset Adjustment
1) Convert to PC in Input-source
I
2
C COMMAND:0xF4(SELECT INPUT) 0x00 0x60(RGB)
cf. 0x10(TV), 0x20(AV), 0x40(COMPONENT),
0x60(RGB), 0x90(HDMI)
2) Signal equipment displays
Output Voltage : 700 mVp-p
Impress Resolution XGA (1024x 768 @ 60Hz)
Impress Resolution XGA (1024x 768 @ 60Hz)
Model : 60 in Pattern Generator
Pattern : 29 in Pattern Generator (MSPG-925 Series)
[gray pattern that left & right is black and center is
white signal (Refer below picture)].
Pattern : 29 in Pattern Generator (MSPG-925 Series)
[gray pattern that left & right is black and center is
white signal (Refer below picture)].
3) Adjust by commanding AUTO_COLOR_ADJUST (0xF1)
0x00 0x02 instruction.
(2) Confirmation
1) We confirm whether “0xB6” address of EEPROM
“0xA2” is “0xAA” or not.
2) If “0xB6(RGB)” address of EEPROM “0xB2” isn’t
“0xAA”, we adjust once more.
3) We can confirm the ADC values from “0xB0~0xB5
(RGB)” addresses in a page “0xA2”
* Manual ADC process using Service Remote control. After
enter Service Mode by pushing “ADJ” key, execute “Auto-
adjust” by pushing “
adjust” by pushing “
G
” key at “0. ADC CALIBRATION”.
3-2. COMPONENT input ADC
(1) Component Gain/Offset Adjustment
1) Convert to Component in Input-source
I
2
C command : 0xF4(Select input) 0x00 0x40(Component)
cf. 0x10(TV), 0x20(AV), 0x40(COMPONENT),
0x60(RGB), 0x90(HDMI)
2) Signal equipment displays
Impress Resolution 480i
MODEL : 209 in Pattern Generator(480i Mode)
PATTERN : 08 in Pattern Generator(MSPG-925 Series)
MODEL : 209 in Pattern Generator(480i Mode)
PATTERN : 08 in Pattern Generator(MSPG-925 Series)
3) Adjust by commanding AUTO_COLOR_ADJUST (0xF1)
0x00 0x02 instruction.
4) Signal equipment display
-Impress Resolution : 1080i
- MODEL: 223 in Pattern Generator(1080i Mode)
- PATTERN: 08 in Pattern generator(MAPG-925 series)
- MODEL: 223 in Pattern Generator(1080i Mode)
- PATTERN: 08 in Pattern generator(MAPG-925 series)
5) Adjust by commanding AUTO_COLOR ADJUST(0xF1)
0x00 0x02 instruction.
* Manual ADC process using Service Remote control. After
enter Service Mode by pushing “ADJ” key, execute “Auto-
adjust” by pushing “
adjust” by pushing “
G
” key at “0. ADC CALIBRATION”.
- 9 -
ADJUSTMENT INSTRUCTION
<Adjustment pattern (PC)>
EZ ADJUST
1. ADC ADJUST
2. SUB B/C ADJUST
3. W/B ADJUST
4. WHITE PATTERN : OFF
5. 2HOUR OFF : ON
6. OAD
7. UART DOWNLOAD
8. FACTORY MODE : ON
9. DEBUG MODE : OFF
2. SUB B/C ADJUST
3. W/B ADJUST
4. WHITE PATTERN : OFF
5. 2HOUR OFF : ON
6. OAD
7. UART DOWNLOAD
8. FACTORY MODE : ON
9. DEBUG MODE : OFF
0. ADC CALIBRATION
: RGB
<Adjustment pattern (COMPONENT)>
EZ ADJUST
1. ADC ADJUST
2. SUB B/C ADJUST
3. W/B ADJUST
4. WHITE PATTERN : OFF
5. 2HOUR OFF : ON
6. OAD
7. UART DOWNLOAD
8. FACTORY MODE : ON
9. DEBUG MODE : OFF
2. SUB B/C ADJUST
3. W/B ADJUST
4. WHITE PATTERN : OFF
5. 2HOUR OFF : ON
6. OAD
7. UART DOWNLOAD
8. FACTORY MODE : ON
9. DEBUG MODE : OFF
0. ADC CALIBRATION : COMPONENT
(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.
4. EDID (The Extended Display
Identification Data)/ DDC(Display
Data Channel) Download
Data Channel) Download
4-1. Summary
It is established in VESA, for communication between PC and
Monitor without order from user for building user condition. It
helps to make easily use realize "Plug and Play" function.
Monitor without order from user for building user condition. It
helps to make easily use realize "Plug and Play" function.
4-2. Required Test Equipment
1) PC (with S/W : EDID Data write & Read)
2) EDID DOWNLOAD JIG
3) HDMI Cable, D-Sub cable
2) EDID DOWNLOAD JIG
3) HDMI Cable, D-Sub cable
4-3. Connection diagram(Setting of D/L device)
4-4. How to download
(1) Configure the download environment as shown at the
adjustment wiring diagram and turn on the PC.
(2) Execute the DDC program. (EDID Data Write & Read)
(3) Go to Model -> Open, and select the EDID data of the
(3) Go to Model -> Open, and select the EDID data of the
desired model.
(4) Check the item to download from the <Test> item
1) HDMI & RGB: Check Digital & Analog
2) (Only)HDMI: Check Digital only
2) (Only)HDMI: Check Digital only
(5) Press ESC(Cancel Mode) -> F8(Auto Mode). (Set Auto
Detecting)
(6) Connect the desired signal cable to the set.
(7) Make sure that the popup "Proceed to write?" is displayed.
(8) Press the Enter key or the space key to download.
(9) After downloading, check the OK message and disconnect
(7) Make sure that the popup "Proceed to write?" is displayed.
(8) Press the Enter key or the space key to download.
(9) After downloading, check the OK message and disconnect
the connected cable.
4-5. EDID DATA
* It is possible to download on only POWER ON MODE.
- HDMI-1 [C/S : 8A27]
EDID Block 0 table =
EDID Block 1 table =
- HDMI-2 [C/S : 8A17]
EDID Block 0 table =
EDID Block 1 table =
- 10 -
MODEL : 22LS4D_UA_UA/LPL_LM220WT7
S/W VER : 3.00.1
UTT : 6
ADC CAL.
UTT : 6
ADC CAL.
RGB : OK
YPbPr(SD) : OK
YPbPr(HD) : OK
YPbPr(SD) : OK
YPbPr(HD) : OK
1. SYNC LEVEL
2. DTV SNR
3. SCREEN MUTE
4. POWER OFF HISTORY
2. DTV SNR
3. SCREEN MUTE
4. POWER OFF HISTORY
0. STEREO DETECT
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
18
F1
47
84
05
03
02
20
22
10
23
15
07
50
10
67
03
0C
00
10
00
B8
2D
01
1D
00
72
51
D0
1E
20
20
6E
28
55
00
C4
8E
21
00
00
1E
01
1D
80
18
71
1C
30
16
20
58
2C
25
00
C4
8E
21
00
00
9E
8C
0A
D0
8A
40
20
E0
2D
10
10
3E
96
00
C4
8E
21
00
00
18
8C
0A
50
D0
8A
20
E0
2D
10
10
3E
96
00
13
8E
21
00
00
18
60
26
36
80
A0
70
38
1F
40
30
20
25
00
C4
8E
21
00
70
00
1A
00
00
00
00
00
00
00
00
00
00
00
00
00
27
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
18
F1
47
84
05
03
02
20
22
10
23
15
07
50
10
67
03
0C
00
20
00
B8
2D
01
1D
00
72
51
D0
1E
20
20
6E
28
55
00
C4
8E
21
00
00
1E
01
1D
80
18
71
1C
30
16
20
58
2C
25
00
C4
8E
21
00
00
9E
8C
0A
D0
8A
40
20
E0
2D
10
10
3E
96
00
C4
8E
21
00
00
18
8C
0A
50
D0
8A
20
E0
2D
10
10
3E
96
00
13
8E
21
00
00
18
60
26
36
80
A0
70
38
1F
40
30
20
25
00
C4
8E
21
00
70
00
1A
00
00
00
00
00
00
00
00
00
00
00
00
00
17
- 11 -
- HDMI-3 [C/S : 8A07]
EDID Block 0 table =
EDID Block 1 table =
- RGB [C/S : F6BC]
EDID Block 0 table =
EDID Block 1 table =
5. White Balance
5-1. The Purpose and Principal of Color
Temperature Adjustment
(1) Purpose: to reduce the difference in color temperature
among modules
(2) Principal: A module is in full dynamic range when RGB
Gain on OSD is 192. To adjust the white balance without
causing full dynamic range and full data, fix one of RGB
Gains at 192 and control the other two by reducing them
from 192.
causing full dynamic range and full data, fix one of RGB
Gains at 192 and control the other two by reducing them
from 192.
5-2. Required Equipment
(1) Color Analyzer : CA-210 (NCG : CH 9 / WCG : CH12)
(2) Automatic adjuster (with automatic adjustment necessity
(2) Automatic adjuster (with automatic adjustment necessity
and the RS-232C communication being possible)
(3) Remote control for adjustment
(4) Video Signal Generator MSPG-925F 720p, 216Gray
(4) Video Signal Generator MSPG-925F 720p, 216Gray
(Model : 217, Pattern 78) => Applied only when the inner
pattern cannot be used
pattern cannot be used
* Use the Color Analyzer with the matrix calibrated by the CS-
1000
5-3. Adjustment command (Protocol)
(1) Protocol
<Command Format>
- LEN : Number of Data Byte
- CMD : Command
- VAL : Value of FOS Data
- CS : Checksum
- A : Acknowledge
Ex) [Send: JA_00_DD] / [Ack: A_00_okDDX}
- CMD : Command
- VAL : Value of FOS Data
- CS : Checksum
- A : Acknowledge
Ex) [Send: JA_00_DD] / [Ack: A_00_okDDX}
(2) RS-232C Command(Automatic adjustment)
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
18
F1
47
84
05
03
02
20
22
10
23
15
07
50
10
67
03
0C
00
30
00
B8
2D
01
1D
00
72
51
D0
1E
20
20
6E
28
55
00
C4
8E
21
00
00
1E
01
1D
80
18
71
1C
30
16
20
58
2C
25
00
C4
8E
21
00
00
9E
8C
0A
D0
8A
40
20
E0
2D
10
10
3E
96
00
C4
8E
21
00
00
18
8C
0A
50
D0
8A
20
E0
2D
10
10
3E
96
00
13
8E
21
00
00
18
60
26
36
80
A0
70
38
1F
40
30
20
25
00
C4
8E
21
00
70
00
1A
00
00
00
00
00
00
00
00
00
00
00
00
00
07
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
18
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
1A
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
F6
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
0
02
03
04
00
0E
1F
00
80
51
00
1E
30
40
80
37
00
10
C4
8E
21
00
00
1C
F1
27
00
A0
51
00
25
30
50
80
20
37
00
C4
8E
21
00
00
1C
26
36
80
A0
70
38
1F
40
30
30
20
25
00
C4
8E
21
00
00
0A
00
00
00
00
00
00
40
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
50
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
60
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
70
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
BC
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
*
Not used when the inner pattern of the TV set is used
Connection Diagram of Automatic Adjustment
RS-232C COMMAND
Meaning
[CMD ID DATA]
wb
00
00
White Balance adjustment start.
wb
00
10
Start of adjust gain (Inner white pattern)
wb
00
1f
End of gain adjust
wb
00
20
Start of offset adjust(Inner white pattern)
wb
00
2f
End of offset adjust
wb
00
ff
End of White Balance adjust(Inner pattern disappeared)
LEN
CMD
VAL
CS
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