LG 47LM6700 (CHASSIS:LC22E) Service Manual ▷ View online
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ADJUSTMENT INSTRUCTION
1. Application Range
This specification sheet is applied to all of the LED LCD TV
with LC22E chassis.
2. Designation
(1)
ecause 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.
(2) Adjustment must be done in the correct order.
(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
(5) The receiver must be operated for about 5 minutes prior to
the adjustment when module is in the circumstance of over 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.
(3) The adjustment must be performed in the circumstance of
25 ±5 C of temperature and 65±10% of relative humidity if
there is no specific designation.
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.
3.1 Main PCB check process
3. Adjustment items
4.Automatic Adjustment
■ Enter Service Mode by pushing “ADJ” key,
■ Enter ADC mode by pushing “► key at “8. ADC Calibration”
■ There are 2 ways for ADC Calibration. ( OTP, External )
*. OTP mode
manufacture line, OTP is used for ADC Calibration automatically.
*. External mode
: Manual ADC Calibration. When OTP mode is failed, ADC
calibration should be “OK” by using External mode.
3.2. Final assembly adjustment
▪White Balance adjustment
▪RS-232C functionality check
▪ PING Test
▪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)
▪ISP Download(Option)
▪MAC Address Download
▪Wide-Vine Key Download
▪Adjust 1920*1080 Comp1
▪Adjust 1920*1080 RGB
▪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.
4.1. Final assembly adjustment
1. Change the ADC type “OTP” by using “►”key.
2. Enter “Start” key.
3. Check the sign “OK” below ADC type.
4.1.2 External ADC Adjustment
Overview
ADC adjustment is needed to find the optimum black level and gain
in Analog-to-Digital device and to compensate RGB deviation.
Equipment & Condition
1) USB to RS-232C Jig
2) MSPG-925 Series Pattern Generator(MSPG-925FA, pattern -65)
- Resolution: 1080P Comp1
1920*1080P RGB
- Pattern : Horizontal 100% Color Bar Pattern
- Pattern level : 0.7±0.1 Vp-p
- Image
Adjustment method
▪ Using USB, adjust items listed in 3.1 in the other shown in “4.1.3.3”
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Adj. protocol
Ref.) ADC Adj. RS232C Protocol_Ver1.0
. WIDEVINE Key Inspection
- Confirm Key input Data at the “IN START” MENU Mode
4.3 LAN PORT INSPECTION(PING TEST)
4.4.1. Equipment setting
1) Play the LAN Port Test PROGRAM.
2) Input IP set up for an inspection to Test
Program.
*IP Number : 12.12.2.2
4.4.2. LAN PORT inspection (PING TEST)
1) Play the LAN Port Test Program.
2) connect each other LAN Port Jack.
3) Play Test (F9) button and confirm OK Message.
4) remove LAN CABLE
Adj. order
▪aa 00 00 [Enter ADC adj. mode]
▪xb 00 04 [Change input source to Component1(480i&1080p)]
▪ad 00 10 [Adjust 480i&1080p Comp1]
▪xb 00 06 [Change input source to RGB(1024*768)]
▪ad 00 10 [Adjust 1920*1080 RGB]
▪aa 00 90 End adj.
Ref) ADC adj. RS232C Protocol_Ver1.0
4.2 LAN Inspection
4.2.1 Equipment & Condition
▪ Each other connection to LAN Port of IP Hub and Jig。
4.2.2 LAN inspection solution
LAN Port connection with PCB
▪ Network setting at MENU Mode of TV
▪ setting automatic IP
▪ Setting state confirmation
If automatic setting is finished, you confirm IP and MAC Address.
Protocol
Command
Set ACK
Enter adj. mode
aa 00 00
a 00 OK00x
Source change
xb 00 04
xb 00 06
b 00 OK04x (Adjust 480i, 1080p Comp1 )
b 00 OK06x (Adjust 1920*1080 RGB)
Begin adj.
ad 00 10
Return adj. result
OKx (Case of Success)
NGx (Case of Fail)
Read adj. data
(main)
ad 00 20
(sub )
ad 00 21
(main)
000000000000000000000000007c007b006dx
(Sub)
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
4.2.3 WIDEVINE Key Inspection
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4.3 Model name & Serial number
Download
4.3.1 Model name & Serial number D/L
b. check the menu on in-start
5. Manual Adjustment
5.1. ADC adjustment is not needed because\
of OTP(Auto ADC adjustment)
5.2. EDID (The Extended Display Identific-
ation Data) / DDC (Display Data Channel)
download
5.2.1 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”.
5.2.2 Equipment
▪ Since embedded EDID data is used, EDID download JIG,
HDMI cable and D-sub cable are not need.
▪ Adjust remocon
5.2.3 Download method
1) Press Adj. key on the Adj. R/C, then select “12.EDID D/L”.
By pressing Enter key, enter EDID D/L menu.
2) Select [Start] button by pressing Enter key, HDMI1 / HDMI2 / HDMI3
/ HDMI4 / RGB are Writing and display OK or NG.
■ Press “Power on” key of service remocon.(Baud rate :
115200 bps)
■ Connect RS-232C Signal to USB Cable to USB.
■ Write Serial number by use USB port.
■ Must check the serial number at Instart menu.
4.3.2 Method & notice
A. Serial number D/L is using of scan equipment.
B. Setting of scan equipment operated by Manufacturing
Technology Group.
C. Serial number D/L must be conformed when it is produced in
production line, because serial number D/L is mandatory by
D-book 4.0
* Manual Download (Model Name and Serial Number)
If the TV set is downloaded By OTA or Service man,
Sometimes model name or serial number is initialized.( Not always)
There is impossible to download by bar code scan, so It need
Manual download.
a. Press the ‘instart’ key of ADJ remote controller.
b. Go to the menu ‘5.Model Number D/L’ like below photo.
c. Input the Factory model name(ex 47LM6200-CC) or Serial
number like photo.
d. Check the model name Instart menu -->Factory name displayed
(ex 47LM62000-CA)
e. Check the Diagnostics (DTV country only) --> Buyer model
displayed (ex 47LM6200-CC)
4.4 WIFI MAC ADDRESS CHECK
a. Using RS232 Command
Command
Set ACK
T ransmission
[A][l][][Set ID][][20][Cr]
[O][K][x] or [N][G]
For Analog EDID
For HDMI EDID
D-sub to D-sub
DVI-D to HDMI or HDMI to HDMI
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RGB_EDID DATA
*Vendor Specific(HDMI)DATA
5.3 White Balance Adjustment
5.3.1 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 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.
-Adj. condition : normal temperature
2) Warm-up time: About 5 Min
3) Surrounding Humidity: 20% ~ 80%
5.3.2 Equipment
1) Color Analyzer: CA-210 (LED Module : CH 14)
2) Adj. Computer(During auto adj., RS-232C protocol is needed)
3) Adjust Remocon
4) Video Signal Generator MSPG-925F 720p/204-Gray(Model:217,
Pattern:49)
→ Only when internal pattern is not available
▪Color Analyzer Matrix should be calibrated using CS-100。
5.3.3 Equipment connection MAP
5.3.4 Adj. Command (Protocol)
<Command Format>
START 6E A 50 A LEN A 03 A CMD A 00 A VAL A CS A STOP
- LEN: Number of Data Byte to be sent
- CMD: Command
- VAL: FOS Data value
- CS: Checksum of sent data
- A: Acknowledge
Ex) [Send: JA_00_DD] / [Ack: A_00_okDDX]
▪RS-232C Command used during auto-adj.
5.2.4 EDID DATA
▪Reference
- HDMI1 ~ HDMI4 / RGB
- In the data of EDID, bellows may be different by S/W or Input mode.
*Product ID
Serial No: Controlled on production line.
*Month, Year: Controlled on production line: ex)
Monthly : ‘01’ -〉 ‘01’
*Model Name(Hex): LGTV
*Checksum(LG TV): Changeable by total EDID data.
3D FHD RGB EDID data
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
a
b
0x01
c
01
03
68
A0
5A
78
0A
EE
91
A3
54
4C
99
26
0x02 0F
50
54
A1
08
00
31
40
45
40
61
40
71
40
81
80
0x03 01
01
01
01
01
01
02
3A
80
18
71
38
2D
40
58
2C
0x04 45
00
A0
5A
00
00
00
1E
66
21
50
B0
51
00
1B
30
0x05 40
70
36
00
A0
5A
00
00
00
1E
00
00
00
FD
00
3A
0x06 3E
1E
53
10
00
0A
20
20
20
20
20
20
d
0x07
d
00
e3
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
a
b
0x01
c
01
03
80
A0
5A
78
0A
EE
91
A3
54
4C
99
26
0x02 0F
50
54
A1
08
00
31
40
45
40
61
40
71
40
81
80
0x03 01
01
01
01
01
01
02
3A
80
18
71
38
2D
40
58
2C
0x04 45
00
A0
5A
00
00
00
1E
66
21
50
B0
51
00
1B
30
0x05 40
70
36
00
A0
5A
00
00
00
1E
00
00
00
FD
00
3A
0x06 3E
1E
53
10
00
0A
20
20
20
20
20
20
d
0x07
d
01
e1
0x00 02
03
37
F1
4E
10
9F
04
13
05
14
03
02
12
20
21
0x01 22
15
01
26
15
07
50
09
57
07
f
0x02
f
0x03
f
E3
05
03
01
02
3A
80
18
71
38
2D
40
58
0x04 2C
45
00
A0
5A
00
00
00
1E
01
1D
80
18
71
1C
16
0x05 20
58
2C
25
00
A0
5A
00
00
00
9E
01
1D
00
72
51
0x06 D0
1E
20
6E
28
55
00
A0
5A
00
00
00
1E
00
00
00
0x07 00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
e2
HEX
EDID Table
DDC
Function
0001
0100
Analog
0001
0100
Digital
Chassis
MODEL NAME(HEX)
LD22E
00 00 00 FC 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 20
ⓔ
1
ⓔ
2
ⓔ
3
HDMI1
9D
49
X
HDMI2
9D
39
X
HDMI3
9D
29
X
HDMI4
9D
19
X
RGB
X
X
80
INPUT
MODEL NAME(HEX)
HDMI1
78 03 0C 00 10 00 B8 2D 20 C0 0E 01 40 0A 3C 08 10 18 10 98 10 58 10 38 10
HDMI2
78 03 0C 00 20 00 B8 2D 20 C0 0E 01 40 0A 3C 08 10 18 10 98 10 58 10 38 10
HDMI3
78 03 0C 00 30 00 B8 2D 20 C0 0E 01 40 0A 3C 08 10 18 10 98 10 58 10 38 10
HDMI4
78 03 0C 00 40 00 B8 2D 20 C0 0E 01 40 0A 3C 08 10 18 10 98 10 58 10 38 10
Color Analyzer
Computer
Pattern Generator
※
※If TV internal pattern is used, not needed
Signal Source
Probe
RS-232C
RS-232C
USB to RS-232C
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