LG 42LM6200 (CHASSIS:LA22E) Service Manual ▷ View online
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ADJUSTMENT INSTRUCTION
1. Application Range
This spec. sheet applies to LA22E Chassis applied LCD TV all
models manufactured in TV factory.
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.
(2) Adjustment must be done in the correct order.
(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.
(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 °C
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.
[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. Adjustment items
3.1. Main PCBA Adjustments
(1) ADC adjustment: Component 480i, 1080p / RGB-PC 1080p
(2) EDID downloads for HDMI and RGB-PC
3.2. Final assembly adjustment
(1) White Balance adjustment
(2) RS-232C functionality check
(3) Factory Option setting per destination
(4) Shipment mode setting (IN-STOP)
(5) GND and HI-POT test
3.3. Appendix
(1) Tool option menu, USB Download (S/W Update, Option and
Service only)
(2) Manual adjustment for ADC calibration and White balance.
(3) Shipment conditions, Channel pre-set
4. MAIN PCBA Adjustments
4.1. ADC Calibration
- An ADC calibration is not necessary because MAIN SoC
(LGE35230) is already calibrated from IC Maker
- If it needs to adjust manually, refer to appendix.
4.2. MAC Address, ESN Key and Widevine
Key download
4.2.1. Equipment & Condition
1) Play file: keydownload.exe
4.2.2. Communication Port connection
1) Key Write: Com 1,2,3,4 and 115200 (Baudrate)
2) Barcode: Com 1,2,3,4 and 9600 (Baudrate)
4.2.3. Download process
1) Select the download items.
2) Mode check: Online Only
3) Check the test process
- US, Canada models: DETECT -> MAC_WRITE ->
WIDEVINE_WRITE
- Korea, Mexico models: DETECT -> MAC_WRITE ->
WIDEVINE_WRITE
4) Play : START
5) Check of result: Ready, Test, OK or NG
4.2.4. Communication Port connection
1) Connect: PCBA Jig -> RS-232C Port == PC -> RS-232C
Port
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4.2.5. Download
1) US, Canada, Mexico models (11Y LCD TV + MAC +
Widevine + ESN Key)
2) Korea and Philippine models (11Y LCD TV + MAC +
Widevine Only)
4.2.6. Inspection
- In INSTART menu, check these keys.
4.3. LAN PORT INSPECTION(PING TEST)
4.3.1. 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.
*IP Number : 12.12.2.2.
4.3.2. 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
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4.4. EDID Download
4.4.1. 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”.
4.4.2. Equipment
(1) Since EDID data is embedded, EDID download JIG, HDMI
cable and D-sub cable are not need.
(2) Adjust by using remote controller.
4.4.3. Download method
(1) Press Adj. key on the Adj. R/C,
(2) Select EDID D/L menu.
(3) By pressing Enter key, EDID download will begin
(4) If Download is successful, OK is display, but If Download is
failure, NG is displayed.
(5) If Download is failure, Re-try downloads.
※
Caution: When EDID Download, must remove RGB/HDMI
Cable.
4.4.4. EDID DATA
4.4.4.1. 2D PCM(US) _ XvYcc : 0n
▪Reference
- HDMI1 ~ HDMI4 / RGB
- In the data of EDID, bellows may be different by S/W or Input
mode.
ⓐ
Product ID
HEX
EDID Table
DDC Function
0001
0100
Analog
0001
0100
Digital
ⓑ
Serial No: Controlled on production line.
ⓒ
Month, Year: Controlled on production line:
ex) Monthly : ‘01’ -> ‘01’
Year : ‘2012’ -> ‘16’
ⓓ
Model Name(Hex): LGTV
Chassis
MODEL NAME(HEX)
LA22E
00 00 00 FC 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20
ⓔ
Checksum(LG TV): Changeable by total EDID data.
ⓔ
1
ⓔ
2
ⓔ
3
HDMI1
43
F2
X
HDMI2
43
E2
X
HDMI3
43
D2
X
HDMI4
43
C2
X
RGB
X
X
5C
ⓕ
Vendor Specific(HDMI)
INPUT
MODEL NAME(HEX)
HDMI1
67 03 0C 00 10 00 80 2D
HDMI2
67 03 0C 00 20 00 80 2D
HDMI3
67 03 0C 00 30 00 80 2D
HDMI4
67 03 0C 00 40 00 80 2D
4.4.4.2. 3D PCM(US) _ XvYcc : 0n
ⓐ
Product ID
HEX
EDID Table
DDC Function
0001
0100
Analog
0001
0100
Digital
ⓑ
Serial No: Controlled on production line.
ⓒ
Month, Year: Controlled on production line:
ex) Monthly : ‘01’ -> ‘01’
Year : ‘2012’ -> ‘16’
ⓓ
Model Name(Hex): LGTV
Chassis
MODEL NAME(HEX)
LA22E
00 00 00 FC 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20
ⓔ
Checksum(LG TV): Changeable by total EDID data.
ⓔ
1
ⓔ
2
ⓔ
3
HDMI1
43
64
X
HDMI2
43
54
X
HDMI3
43
44
X
HDMI4
43
34
X
RGB
X
X
5C
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ⓕ
Vendor Specific(HDMI)
INPUT
MODEL NAME(HEX)
HDMI1 78 03 0C 00 10 00 80 2D 20 C0 0E 01 4F 00 FE
08 10 06 10 18 10 28 10 38 10
HDMI2 78 03 0C 00 20 00 80 2D 20 C0 0E 01 4F 00 FE
08 10 06 10 18 10 28 10 38 10
HDMI3 78 03 0C 00 30 00 80 2D 20 C0 0E 01 4F 00 FE
08 10 06 10 18 10 28 10 38 10
HDMI4 78 03 0C 00 40 00 80 2D 20 C0 0E 01 4F 00 FE
08 10 06 10 18 10 28 10 38 10
4.4.4.3. 3D PCM(US) _ XvYcc : 0ff
▪Reference
- HDMI1 ~ HDMI4 / RGB
- In the data of EDID, bellows may be different by S/W or Input
mode.
ⓐ
Product ID
HEX
EDID Table
DDC Function
0001
0100
Analog
0001
0100
Digital
ⓑ
Serial No: Controlled on production line.
ⓒ
Month, Year: Controlled on production line:
ex) Monthly : ‘01’ -> ‘01’
Year : ‘2012’ -> ‘16’
ⓓ
Model Name(Hex): LGTV
Chassis
MODEL NAME(HEX)
LA22E
00 00 00 FC 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20
ⓔ
Checksum(LG TV): Changeable by total EDID data.
ⓔ
1
ⓔ
2
ⓔ
3
HDMI1
43
B5
X
HDMI2
43
A5
X
HDMI3
43
95
X
HDMI4
43
85
X
RGB
X
X
5C
ⓕ
Vendor Specific(HDMI)
INPUT
MODEL NAME(HEX)
HDMI1
67 03 0C 00 10 00 80 2D
HDMI2
67 03 0C 00 20 00 80 2D
HDMI3
67 03 0C 00 30 00 80 2D
HDMI4
67 03 0C 00 40 00 80 2D
4.4.4.4. 3D PCM(US) _XvYcc : off
ⓐ
Product ID
HEX
EDID Table
DDC Function
0001
0100
Analog
0001
0100
Digital
ⓑ
Serial No: Controlled on production line.
ⓒ
Month, Year: Controlled on production line:
ex) Monthly : ‘01’ -> ‘01’
Year : ‘2012’ -> ‘16’
ⓓ
Model Name(Hex): LGTV
Chassis
MODEL NAME(HEX)
LA22E
00 00 00 FC 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20
ⓔ
Checksum(LG TV): Changeable by total EDID data.
ⓔ
1
ⓔ
2
ⓔ
3
HDMI1
43
68
X
HDMI2
43
58
X
HDMI3
43
48
X
HDMI4
43
38
X
RGB
X
X
5C
ⓕ
Vendor Specific(HDMI)
INPUT
MODEL NAME(HEX)
HDMI1 78 03 0C 00 10 00 80 2D 20 C0 0E 01 4F 00 FE
08 10 06 10 18 10 28 10 38 10
HDMI2 78 03 0C 00 20 00 80 2D 20 C0 0E 01 4F 00 FE
08 10 06 10 18 10 28 10 38 10
HDMI3 78 03 0C 00 30 00 80 2D 20 C0 0E 01 4F 00 FE
08 10 06 10 18 10 28 10 38 10
HDMI4 78 03 0C 00 40 00 80 2D 20 C0 0E 01 4F 00 FE
08 10 06 10 18 10 28 10 38 10
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