LG 26LD320H (CHASSIS:LB0AW) Service Manual ▷ View online
4) Updating is starting.
5) Uploading 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 control.
2) Select “Tool Option 1” and push “OK” key.
3) Punch in the number. (Each model has their number)
4) Completed selecting Tool option.
2) Select “Tool Option 1” and push “OK” key.
3) Punch in the number. (Each model has their number)
4) Completed selecting Tool option.
3.1. ADC Process
(1) ADC
G
” key at “5. ADC
Calibration”.
<Caution> Using ‘power on’ key of the Adjustment remote
control, power on TV.
* ADC Calibration Protocol (RS232)
Adjust Sequence
• aa 00 00 [Enter Adjust Mode]
• xb 00 40 [Component1 Input (480i)]
• ad 00 10 [Adjust 480i Comp1]
• xb 00 60 [RGB Input (1024*768)]
• ad 00 10 [Adjust 1024*768 RGB]
• aa 00 90 End Adjust mode
* Required equipment : Adjustment remote control.
• aa 00 00 [Enter Adjust Mode]
• xb 00 40 [Component1 Input (480i)]
• ad 00 10 [Adjust 480i Comp1]
• xb 00 60 [RGB Input (1024*768)]
• ad 00 10 [Adjust 1024*768 RGB]
• aa 00 90 End Adjust mode
* Required equipment : Adjustment remote control.
3.2. Function Check
* Check display and sound
- Check Input and Signal items. (cf. work instructions)
1) TV
2) AV (SCART)
3) COMPONENT (480i)
4) RGB (PC : 1024 x 768 @ 60 Hz)
5) HDMI
6) PC Audio In
* Display and Sound check is executed by Remote control.
2) AV (SCART)
3) COMPONENT (480i)
4) RGB (PC : 1024 x 768 @ 60 Hz)
5) HDMI
6) PC Audio In
* Display and Sound check is executed by Remote control.
- 10 -
EZ ADJUT
0. Tool Option1
1. Tool Option2
2. Tool Option3
3. Tool Option4
4. Country Group
1. Tool Option2
2. Tool Option3
3. Tool Option4
4. Country Group
5. ADC Calibration
6. White Balance
7. Test Pattern
8. EDID D/L
9. Sub B/C
10. V-Com
11. P-Gamma
7. Test Pattern
8. EDID D/L
9. Sub B/C
10. V-Com
11. P-Gamma
ADC Calibration
ADC Comp 480i
ADC Comp 1080p
ADC RGB
NG
NG
NG
Reset
Start
Item CMD1 CMD2
Data0
Adjust ‘Mode In’
A
A
0
0 When transfer the ‘Mode In’,
Carry the command.
ADC Adjust
A
D
1
0 Automatically adjustment
(The use of a internal pattern)
- 11 -
4. Total Assembly line process
4.1. Check Commercial features
4.1.1. External SPK Out and Volume control
(1) Connect JIG for inspection to phone jack on TV as above.
(2) Press Vol. control button up/down in turns and check the
(2) Press Vol. control button up/down in turns and check the
waveform of Oscilloscope.
4.1.2. IR Out and DC Power Outlet(5 V / 12 V)
* In using Commercial Check Jig
(1) Connect JIG for inspection to RS-232C port on TV as
below. DC 5V Power must be supplied to JIG through AC
Power Adapter at 3.
Power Adapter at 3.
(2) Enter the Configuration Setup mode in pressing remote
control keys. The method to enter Configuration Setup
mode: IN-START -> MENU -> Configuration Setup -> OK
mode: IN-START -> MENU -> Configuration Setup -> OK
1) Select 5V DC Power Outlet and change the setting :
No -> Yes. After that, check LED color in JIG.
2) After checking 5V DC Power Outlet, change the setting
: Yes -> No.
3) Please check 12V DC Power Outlet in the same
procedure.
3) Check the LED for IR-Out inspection.
* Please refer to the criteria of Judgement.
* In using Mini check Jig
(1) Connect JIG for inspection to RS-232C port on TV as below.
(2) Enter the Configuration Setup mode in pressing remote
(2) Enter the Configuration Setup mode in pressing remote
control keys. The method to enter Configuration Setup
mode: IN-START -> MENU -> Configuration Setup -> OK
mode: IN-START -> MENU -> Configuration Setup -> OK
1) Select 5V DC Power Outlet and change the setting :
No -> Yes. After that, check LED color in JIG.
2) After checking 5V DC Power Outlet, change the setting
: Yes -> No.
3) Please check 12V DC Power Outlet in the same
procedure.
3) Check the LED for IR-Out inspection.
* Please refer to the criteria of Judgement.
4.1.3. LED Clock
Check front LED Clock in Power on mode.
4.2. Adjustment Preparation
· W/B Equipment condition
CA210 : CH 9, Test signal : Inner pattern (85IRE)
· Above 5 minutes H/run in the inner pattern. (“power on” key
of adjustment remote control)
* Connecting picture of the measuring instrument
(On Automatic control)
Inside Pattern is used when W/B is controlled. Connect to auto
controller or push Adjustment remote control POWER ON ->
Enter the mode of White-Balance, the pattern will come out.
Inside Pattern is used when W/B is controlled. Connect to auto
controller or push Adjustment remote control POWER ON ->
Enter the mode of White-Balance, the pattern will come out.
Button of Vol. control
Waveform of Oscilloscope
UP(+)
DOWN(-)
Recommended Input Signal
: RF, 1 KHz, Sine wave
: RF, 1 KHz, Sine wave
Cool 13,000
K
X=0.269(±0.002)
Y=0.273(±0.002)
<Test Signal>
Medium
9,300
K
X=0.285(±0.002)
Inner pattern
Y=0.293(±0.002)
(216 gray,85 IRE)
Warm
6,500
K
X=0.313(±0.002)
Y=0.329(±0.002)
Full White Pattern
COLOR
ANALYZER
TYPE: CA-210
ANALYZER
TYPE: CA-210
RS-232C Communication
CA-210
* Auto-control interface and directions
1) Adjust in the place where the influx of light like floodlight
around is blocked. (Illumination is less than 10 lux).
2) Adhere closely the Color Analyzer (CA210) to the module
less than 10 cm distance, keep it with the surface of the
Module and Color Analyzer’s prove vertically.(80° ~ 100°).
Module and Color Analyzer’s prove vertically.(80° ~ 100°).
3) Aging time
- After aging start, keep the power on (no suspension of
power supply) and heat-run over 5 minutes.
- Using ‘no signal’ or ‘full white pattern’ or the others,
check the back light on.
• Auto adjustment Map(RS-232C)
RS-232C COMMAND
[CMD
[CMD
ID DATA]
Wb
00
00
White Balance Start
Wb
00
ff
White Balance End
** Caution **
Color Temperature : COOL, Medium, Warm.
One of R Gain/G Gain/ B Gain should be kept on 0xC0, and
adjust other two lower than C0.
(when R/G/B Gain are all C0, it is the FULL Dynamic Range
of Module)
One of R Gain/G Gain/ B Gain should be kept on 0xC0, and
adjust other two lower than C0.
(when R/G/B Gain are all C0, it is the FULL Dynamic Range
of Module)
* Manual W/B process using adjusts Remote control.
• After enter Service Mode by pushing “ADJ” key,
• Enter White Balance by pushing “
• Enter White Balance by pushing “
G
” key at “6. White
Balance”.
* After done all adjustments, press “In-start” key and compare
Tool option and Area option value with its BOM, if it is
correctly same then unplug the AC cable. If it is not same,
then correct it same with BOM and unplug AC cable.
For correct it to the model’s module from factory Jig model.
correctly same then unplug the AC cable. If it is not same,
then correct it same with BOM and unplug AC cable.
For correct it to the model’s module from factory Jig model.
* Push the “IN STOP” key after completing the function
inspection. And Mechanical Power Switch must be set
“ON”.
“ON”.
4.3. DPM operation confirmation
(Only for MNT Model)
Check if Power LED Color and Power Consumption operate
as standard.
• Set Input to RGB and connect D-sub cable to set.
• Measurement condition : 100 - 240 V, 50 / 60 Hz
• Confirm DPM operation at the state of screen without Signal.
Check if Power LED Color and Power Consumption operate
as standard.
• Set Input to RGB and connect D-sub cable to set.
• Measurement condition : 100 - 240 V, 50 / 60 Hz
• Confirm DPM operation at the state of screen without Signal.
4.4. DDC EDID Write (RGB 128Byte )
• Connect D-sub Signal Cable to D-sub Jack.
• Write EDID Data to EEPROM(24C02) by using DDC2B
• Write EDID Data to EEPROM(24C02) by using DDC2B
protocol.
• Check whether written EDID data is correct or not.
* For Service main Assembly, EDID have to be downloaded to
* For Service main Assembly, EDID have to be downloaded to
Insert Process in advance.
4.5. DDC EDID Write (HDMI 256Byte)
• Connect HDMI Signal Cable to HDMI Jack.
• Write EDID Data to EEPROM(24C02) by using DDC2B protocol.
• Check whether written EDID data is correct or not.
* For Service main Assembly, EDID have to be downloaded to
• Write EDID Data to EEPROM(24C02) by using DDC2B protocol.
• Check whether written EDID data is correct or not.
* For Service main Assembly, EDID have to be downloaded to
Insert Process in advance.
4.6. EDID DATA
1) All Data : HEXA Value
2) Changeable Data :
*: Serial No : Controlled / Data:01
**: Month : Controlled / Data:00
***: Year : Controlled
****: Check sum
2) Changeable Data :
*: Serial No : Controlled / Data:01
**: Month : Controlled / Data:00
***: Year : Controlled
****: Check sum
- Auto Download
• After enter Service Mode by pushing “ADJ” key,
• Enter EDID D/L mode.
• Enter “START” by pushing “OK” key.
• Enter EDID D/L mode.
• Enter “START” by pushing “OK” key.
[Caution]
Never connect HDMI & D-sub Cable when EDID downloaded.
Never connect HDMI & D-sub Cable when EDID downloaded.
* Edid data and Model option download (RS232)
- 12 -
RS-232C COMMAND MIN
CENTER
MAX
[CMD ID DATA]
(DEFAULT)
Cool
Mid
Warm
Cool
Mid
Warm
R Gain
jg
Ja
jd
00
172
192
192
192
G Gain
jh
Jb
je
00
172
192
192
192
B Gain
ji
Jc
jf
00
192
192
172
192
R Cut
64
64
64
128
G Cut
64
64
64
128
B Cut
64
64
64
128
EZ ADJUST
0. Tool Option1
1. Tool Option2
2. Tool Option3
3. Tool Option4
4. Country Group
5. ADC Calibration
1. Tool Option2
2. Tool Option3
3. Tool Option4
4. Country Group
5. ADC Calibration
6. White Balance
7. Test Pattern
8. EDID D/L
9. Sub B/C
10. V-Com
11. P-Gamma
8. EDID D/L
9. Sub B/C
10. V-Com
11. P-Gamma
White Balance
Color Temp.
R-Gain
G-Gain
B-Gain
R-Cut
G-Cut
B-Cut
Test-Pattern.
Reset
Cool
172
172
192
64
64
64
ON
To set
EZ ADJUT
0. Tool Option1
1. Tool Option2
2. Tool Option3
3. Tool Option4
4. Country Group
5. ADC Calibration
6. White Balance
7. Test Pattern
1. Tool Option2
2. Tool Option3
3. Tool Option4
4. Country Group
5. ADC Calibration
6. White Balance
7. Test Pattern
8. EDID D/L
9. Sub B/C
10. V-Com
11. P-Gamma
10. V-Com
11. P-Gamma
EDID D/L
HDMI1
HDMI2
HDMI3
RGB
HDMI2
HDMI3
RGB
NG
NG
NG
NG
NG
NG
NG
Reset
Start
EDID D/L
Reset
Start
HDMI1
HDMI2
HDMI3
RGB
HDMI2
HDMI3
RGB
OK
OK
OK
OK
OK
OK
OK
Item CMD1 CMD2 Data0
Download
A
A
0
0
When transfer the ‘Mode In’,
‘Mode In’
Carry the command.
Download
A
E
00 10 Automatically Download
(The use of a internal pattern)
- 13 -
- Manual Download
* Caution
1) Use the proper signal cable for EDID Download.
- Analog EDID : Pin3 exists
- Digital EDID : Pin3 exists
- Digital EDID : Pin3 exists
2) Never connect HDMI & D-sub Cable at the same time.
3) Use the proper cables below for EDID Writing.
4) Download HDMI1, HDMI2, separately because HDMI1 is
3) Use the proper cables below for EDID Writing.
4) Download HDMI1, HDMI2, separately because HDMI1 is
different from HDMI2.
1) HD RGB EDID data
2) HD HDMI EDID data
* Detail EDID Options are below
ⓐ Product ID
ⓑ Serial No: Controlled on production line.
ⓒ Month, Year: Controlled on production line:
ex) Monthly : ‘02’ -> ‘02’
Year : ‘2009’ -> ‘13’
ⓓ Model Name(Hex):
ⓔ Checksum: Changeable by total EDID data.
ⓕ Vendor Specific(HDMI)
4.6. V-COM Adjust(Only LGD(M+S) Module)
- Why need Vcom adjustment?
A
The Vcom (Common Voltage) is a Reference Voltage of
Liquid Crystal Driving.
-> Liquid Crystal need for Polarity Change with every frame.
Liquid Crystal Driving.
-> Liquid Crystal need for Polarity Change with every frame.
Item
Manufacturer ID
Version
Revision
Condition
GSM
Digital : 1
Digital : 3
Data(Hex)
1E6D
01
03
D-sub to D-sub
DVI-D to HDMI or HDMI to HDMI
For HDMI EDID
For Analog EDID
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
a
b
10
c
01
03
68
73
41
78
0A
CF
74
A3
57
4C
B0
23
20
09
48
4C
A1
08
00
81
C0
61
40
45
40
31
40
01
01
30
01
01
01
01
01
01
66
21
50
B0
51
00
1B
30
40
70
40
36
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
3A
60
3E
1F
46
10
00
0A
20
20
20
20
20
20
d
70
d
00
e
80
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
90
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
A0
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
B0
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
C0
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
D0
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
E0
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
F0
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
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
a
b
10
c
01
03
80
73
41
78
0A
CF
74
A3
57
4C
B0
23
20
09
48
4C
A1
08
00
81
C0
61
40
45
40
31
40
01
01
30
01
01
01
01
01
01
66
21
50
B0
51
00
1B
30
40
70
40
36
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
3A
60
3E
1F
46
10
00
0A
20
20
20
20
20
20
d
70
d
01
e
80
02
03
20
F1
4E
10
1F
84
13
05
14
03
02
12
20
21
90
22
15
01
26
15
07
50
09
57
07
f
A0
f
80
18
71
1C
16
20
58
2C
25
00
7E
8A
42
00
B0
00
9E
01
1D
00
80
51
D0
0C
20
40
80
35
00
7E
8A
C0
42
00
00
1E
8C
0A
D0
8A
20
E0
2D
10
10
3E
96
00
D0
7E
8A
42
00
00
18
02
3A
80
18
71
38
2D
40
58
2C
E0
45
00
7E
8A
42
00
00
1E
01
1D
80
D0
72
1C
16
20
F0
10
2C
25
80
7E
8A
42
00
00
9E
00
00
00
00
00
D5
Model Name
HEX
EDID Table
DDC Function
HD Model
0000
00 00
Analog/Digital
MODEL
MODEL NAME(HEX)
LG TV
00 00 00 FC 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20
INPUT
MODEL NAME(HEX)
HDMI1 65030C001000011D
HDMI2 65030C002000011D
EDID C/S data
FHD
HD
HDMI
RGB
HDMI
RGB
Check sum Block 0
D7
1D
7A
93
(Hex)
Block 1
39(HDMI1)
D5(HDMI1)
29(HDMI2)
C5(HDMI2)
Row Li ne
Column Line
C
LC
C
ST
Pane l
S
Y
S
T
E
M
Gat
e
Driv
e
IC
So urce D r i v e I C
Circuit Block
Ti m i n g
Co nt r o ll e r
Co nt r o ll e r
Po w e r
Blo ck
Blo ck
V
COM
Ga mma
Re f e r e nce V o ltage
Re f e r e nce V o ltage
Gamm a R eference
Volta ge
Volta ge
Da ta (R ,G,B ) & C ont ro l s ignal
Con t rol si gnal
Data (R ,G,B ) &
Con t rol si gnal
Con t rol si gnal
In
te
te
r
fa
c
e
TFT
Po w e r I n p u t
Power Input
Da t a I n p u t
Da t a I n p u t
V
COM
Liquid
Crys tal
Crys tal
V
COM
Click on the first or last page to see other 26LD320H (CHASSIS:LB0AW) service manuals if exist.