LG 42LW5500-ZE / 42LW550T-ZE / 42LW550W-ZE / 42LW551C-ZE / 42LW5590-ZE (CHASSIS:LD12C) Service Manual ▷ View online
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(7) 3D Input mode
(5) RGB-PC Input
No.
Resolution
H-freq(kHz)
V-freq.(Hz)
Pixel clock(MHz)
Proposed
3D input proposed mode
1
1920*1080
67.5
60
148.5
HDTV 1080P
Side by Side, Top & Bottom
(6) DLNA
No.
Resolution
H-freq(kHz)
V-freq.(Hz)
Pixel clock(MHz)
Proposed
3D input proposed mode
1
1920*1080
33.75
30
HDTV 1080P
Side by Side, Top & Bottom,
Checkerboard
No.
Side by Side
Top & Bottom
Checkerboard
Single Frame Sequential
Frame Packing
1.
R
L
L
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ADJUSTMENT INSTRUCTION
1. Application Range
This specification sheet is applied to all of the LED LCD TV
with LD12C chassis.
with LD12C chassis.
2. Designation
(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 ºC ± 5 ºC of temperature and 65 % ± 10 % of relative
humidity if there is no specific designation.
humidity if there is no specific designation.
(4) The input voltage of the receiver must keep AC 100-240
V~ 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
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.
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.
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. Automatic Adjustment
3.1. 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.
* If Adjust ADC is “OTP”, It doesn’t need ADC adjustment.
and gain in Analog-to-Digital device and to compensate
RGB deviation.
* If Adjust ADC is “OTP”, It doesn’t need ADC adjustment.
(GP3-BCM)
(2) Equipment & Condition
1) Jig (RS-232C protocol)
2) MSPG-925 Series Pattern Generator(MSPG-925FA,
2) MSPG-925 Series Pattern Generator(MSPG-925FA,
pattern - 65)
- Resolution : 480i Comp1
1080P Comp1
1920*1080 RGB
1920*1080 RGB
- Pattern : Horizontal 100% Color Bar Pattern
- Pattern level : 0.7±0.1 Vp-p
- Image
- Pattern level : 0.7±0.1 Vp-p
- Image
(3) Adjustment
1) Adjustment method
- Using RS-232, adjust items in the other shown in
“3.1.(3).3)”
2) Adj. protocol
Ref.) ADC Adj. RS232C Protocol_Ver1.0
3) Adj. order
- aa 00 00 [Enter ADC adj. mode]
- xb 00 04 [Change input source to Component1(480i&1080p)]
- ad 00 10 [Adjust 480i Comp1]
- xb 00 06 [Change input source to RGB(1024*768)]
- ad 00 10 [Adjust 1024*768 RGB]
- ad 00 90 End adj.
- xb 00 04 [Change input source to Component1(480i&1080p)]
- ad 00 10 [Adjust 480i Comp1]
- xb 00 06 [Change input source to RGB(1024*768)]
- ad 00 10 [Adjust 1024*768 RGB]
- ad 00 90 End adj.
3.2. MAC Address
(1) Equipment & Condition
- Play file: Serial.exe
- MAC Address edit
- Input Start / End MAC address
- MAC Address edit
- Input Start / End MAC address
(2) Download method
1) Communication Prot connection
Connect: PCBA Jig-> RS-232C Port== PC-> RS-232C Port
Protocol
Command
Set ACK
Enter adj. mode
aa 00 00
a 00 OK00x
Source change
xb 00 40
b 00 OK40x (Adjust 480i, 1080p Comp1 )
xb 00 60
b 00 OK60x (Adjust 1920*1080 RGB)
Begin adj.
ad 00 10
Return adj. result
OKx (Case of Success)
NGx (Case of Fail)
Read adj. data
(main)
(main)
ad 00 20
000000000000000000000000007c007b006dx
(sub)
(Sub)
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.
aa 00 90
a 00 OK90x
PCBA
PC(RS-232C)
RS-232C Po rt
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2) MAC Address Download
- Com 1,2,3,4 and 115200(Baud rate)
- Port connection button click(1)
- Port connection button click(1)
- Load button click(2) for MAC Address write.
- Start MAC Address write button(3)
- Check the OK Or NG
- Start MAC Address write button(3)
- Check the OK Or NG
3.3. LAN Inspection
(1) Equipment & Condition
A
Each other connection to LAN Port of IP Hub and Jig
(2) LAN inspection solution
A
LAN Port connection with PCB
A
Network setting at MENU Mode of TV
A
setting automatic IP
A
Setting state confirmation
-> If automatic setting is finished, you confirm IP and
MAC Address.
3.4. LAN PORT INSPECTION(PING TEST)
Connect SET -> LAN port == PC -> LAN Port
(1) Equipment setting
1) Play the LAN Port Test PROGRAM.
2) Input IP set up for an inspection to Test
2) Input IP set up for an inspection to Test
Program.
*IP Number : 12.12.2.2
*IP Number : 12.12.2.2
(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
2) Connect each other LAN Port Jack.
3) Play Test (F9) button and confirm OK Message.
4) Remove LAN CABLE
3.5. Model name & Serial number Download
(1) Model name & Serial number D/L
A
Press “Power on” key of service remote control.(Baud
rate : 115200 bps)
rate : 115200 bps)
A
Connect RS232 Signal Cable to RS-232 Jack.
A
Write Serial number by use RS-232.
A
Must check the serial number at Instart menu.
(2) Method & notice
A. Serial number D/L is using of scan equipment.
B. Setting of scan equipment operated by Manufacturing
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
is mandatory by D-book 4.0
SET
PC
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* 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 control.
b. Go to the menu ‘5.Model Number D/L’ like below photo.
c. Input the Factory model name(ex 42LW950-ZA) or Serial
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 control.
b. Go to the menu ‘5.Model Number D/L’ like below photo.
c. Input the Factory model name(ex 42LW950-ZA) or Serial
number like photo.
d. Check the model name Instart menu -> Factory name
displayed (ex 42LW750S-ZA)
e. Check the Diagnostics (DTV country only) -> Buyer model
displayed (ex 42LW750S-ZA)
3.6. CI+ Key Download method
3.6.1. Download Procedure
(1) Press "Power on" button of a Service Remote control.
(Baud rate : 115200 bps)
(2) Connect RS232-C Signal Cable.
(3) Write CI+ Key through RS-232-C.
(4) Check whether the key was downloaded or not at ‘In Start’
(3) Write CI+ Key through RS-232-C.
(4) Check whether the key was downloaded or not at ‘In Start’
menu. (Refer to below).
=> Check the Download to CI+ Key value in LGset.
3.6.2. Check the method of CI+ Key value
(1) check the method on Instart menu
(2) check the method of RS232C Command
(2) check the method of RS232C Command
1) into the main ass’y mode (RS232 : aa 00 00)
2) check the key download for transmitted command
(RS232 : ci 00 10)
3) result value
- normally status for download : OKx
- abnormally status for download : NGx
- abnormally status for download : NGx
3.6.3. Check the method of CI+ Key value (RS232)
1) into the main ass’y mode (RS232 : aa 00 00)
2) Check the method of CI+ key by command (RS232 : ci
00 20)
3) Result value
i 01 OK 1d1852d21c1ed5dcx
3.7. Widevine Key Download method
3.7.1. Widevine key Download
(1) Press "Power on" button of a Service Remote control
(Baud rate : 115200 bps)
(2) Connect RS232-C Signal Cable.
(3) Write Widevine Key through RS-232-C.
(4) Check whether the key was downloaded or not at ‘In Start’
(3) Write Widevine Key through RS-232-C.
(4) Check whether the key was downloaded or not at ‘In Start’
menu. (Refer to below).
=> Check the Download to Widevine Key value in LGset.
3.7.2. check the method of Widevine Key value.
(1) Check the method on Instart menu.
(2) Check the method of RS232C Command.
(2) Check the method of RS232C Command.
1) into the main ass’y mode (RS232 : aa 00 00)
2) Check the key download for transmitted command
(RS232 : ci 00 10)
3) result value
- normally status for download : OKx
- abnormally status for download : NGx
-
- abnormally status for download : NGx
-
3.7.3 check the method of Widevine Key value (RS232)
1) into the main ass’y mode (RS232 : aa 00 00)
2) Check the method of Widevine key by command
(RS232 : ci 00 20)
3) result value
i 01 OK 1d1852d21c1ed5dcx
CMD 1
CMD 2
Data 0
A
A
0
0
CMD 1
CMD 2
Data 0
C
I
1
0
CMD 1
CMD 2
Data 0
A
A
0
0
CMD 1
CMD 2
Data 0
C
I
2
0
CMD 1
CMD 2
Data 0
C
I
2
0
CI+ key Value
CMD 1
CMD 2
Data 0
A
A
0
0
CMD 1
CMD 2
Data 0
C
I
1
0
CMD 1
CMD 2
Data 0
A
A
0
0
Widevine key Value
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