LG 72LW9900 Schematic

LED LCD TV
SERVICE MANUAL
CAUTION
BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
CHASSIS : LB12N
MODEL : 72LW9900 72LW9900-TA
Internal Use Only
Printed in KoreaP/NO : MFL67007029 (1111-REV00)
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LGE Internal Use OnlyCopyright © 2011 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
CONTENTS
CONTENTS .............................................................................................. 2
PRODUCT SAFETY ................................................................................. 3
SPECIFICATION ....................................................................................... 4
ADJUSTMENT INSTRUCTION ................................................................ 8
BLOCK DIAGRAM.................................................................................. 16
EXPLODED VIEW .................................................................................. 17
SCHEMATIC CIRCUIT DIAGRAM ..............................................................
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LGE Internal Use OnlyCopyright © 2011 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
SAFETY PRECAUTIONS
Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by in the Schematic Diagram and Exploded View. It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer.
General Guidance
An isolation Transformer should always be used during the servicing of a receiver whose chassis is not isolated from the AC power line. Use a transformer of adequate power rating as this protects the technician from accidents resulting in personal injury from electrical shocks.
It will also protect the receiver and it's components from being damaged by accidental shorts of the circuitry that may be inadvertently introduced during the service operation.
If any fuse (or Fusible Resistor) in this TV receiver is blown, replace it with the specified.
When replacing a high wattage resistor (Oxide Metal Film Resistor, over 1 W), keep the resistor 10 mm away from PCB.
Keep wires away from high voltage or high temperature parts.
Before returning the receiver to the customer,
always perform an AC leakage current check on the exposed metallic parts of the cabinet, such as antennas, terminals, etc., to be sure the set is safe to operate without damage of electrical shock.
Leakage Current Cold Check(Antenna Cold Check)
With the instrument AC plug removed from AC source, connect an electrical jumper across the two AC plug prongs. Place the AC switch in the on position, connect one lead of ohm-meter to the AC plug prongs tied together and touch other ohm-meter lead in turn to each exposed metallic parts such as antenna terminals, phone jacks, etc. If the exposed metallic part has a return path to the chassis, the measured resistance should be between 1 Mand 5.2 M. When the exposed metal has no return path to the chassis the reading must be infinite. An other abnormality exists that must be corrected before the receiver is returned to the customer.
Leakage Current Hot Check (See below Figure)
Plug the AC cord directly into the AC outlet.
Do not use a line Isolation Transformer during this check.
Connect 1.5 K / 10 watt resistor in parallel with a 0.15 uF capacitor between a known good earth ground (Water Pipe, Conduit, etc.) and the exposed metallic parts. Measure the AC voltage across the resistor using AC voltmeter with 1000 ohms/volt or more sensitivity. Reverse plug the AC cord into the AC outlet and repeat AC voltage measurements for each exposed metallic part. Any voltage measured must not exceed 0.75 volt RMS which is corresponds to
0.5 mA. In case any measurement is out of the limits specified, there is possibility of shock hazard and the set must be checked and repaired before it is returned to the customer.
Leakage Current Hot Check circuit
1.5 Kohm/10W
To Instrument’s exposed METALLIC PARTS
Good Earth Ground such as WATER PIPE, CONDUIT etc.
AC Volt-meter
When 25A is impressed between Earth and 2nd Ground for 1 second, Resistance must be less than 0.1
*Base on Adjustment standard
IMPORTANT SAFETY NOTICE
0.15 uF
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LGE Internal Use OnlyCopyright © 2011 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
SPECIFICATION
NOTE : Specifications and others are subject to change without notice for improvement
.
1. Application range
This specification is applied to the LCD TV used LB12N chassis.
2. Requirement for Test
Each part is tested as below without special appointment.
1) Temperature: 25 ºC ± 5 ºC(77 ºF ± 9 ºF), CST: 40 ºC ± 5 ºC
2) Relative Humidity: 65 % ± 10 %
3) Power Voltage : Standard input voltage (AC 100-240 V~, 50/60 Hz) * Standard Voltage of each products is marked by models.
4) Specification and performance of each parts are followed
each drawing and specification by part number in accordance with BOM.
5) The receiver must be operated for about 5 minutes prior to
the adjustment.
3. Test method
1) Performance: LGE TV test method followed
2) Demanded other specification
- Safety : CE, IEC specification
- EMC : CE, IEC
4. Model General Specification
No. Item Specification Remarks
1. Market ASIA, Oceania, Africa, DTV & Analog
Middle East(PAL/DVB Market) * DTV Region : Australia/New Zealand(AU), Singapore(SG), Indonesia(ID),
Malaysia(MY), Vietnam(VN), South Africa(ZA), Iran(IR)
2. Broadcasting system 1) PAL-B/G * Australia/India : only PAL
2) PAL-D/K
3) PAL-I/I’
3) SECAM-DK, BG, I
4) DVB-T
3. Receiving system Analog : Upper Heterodyne G DVB-T
Digital : COFDM, QAM - Guard Interval(Bitrate_Mbit/s)
1/4, 1/8, 1/16, 1/32
- Modulation : Code Rate
QPSK : 1/2, 2/3, 3/4, 5/6, 7/8
16-QAM : 1/2, 2/3, 3/4, 5/6, 7/8
64-QAM : 1/2, 2/3, 3/4, 5/6, 7/8
4. Video Input RCA (2EA) PAL, SECAM, NTSC 4 System : PAL, SECAM, NTSC, PAL60
Rear 1EA, AV gender jack 1EA
5. Head phone out Antena, AV1, AV2, Component1,
Component2, RGB, HDMI1, HDMI2,
HDMI3, HDMI4, USB1, USB2
6. Component Input (2EA) Y/Cb/Cr, Y/Pb/Pr Rear 1EA, Gender 1EA
7. RGB Input (1EA) RGB-PC Analog(D-SUB 15PIN)
8. HDMI Input (4EA) HDMI1-ARC PC(HDMI version 1.3) Support HDCP
HDMI2
HDMI3
HDMI4
9. Audio Input (5EA) RGB/DVI Audio L/R Input
Component1,2
AV1,2
10. SDPIF out (1EA) SPDIF out
11. USB (2EA) EMF, DivX HD, For SVC(download) JPEG, MP3, DivX HD Plus
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LGE Internal Use OnlyCopyright © 2011 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
5. Component Video Input (Y, CB/PB, CR/PR)
No.
Specification
Remark
Resolution H-freq(kHz) V-freq(Hz)
1. 720x480 15.73 60.00 SDTV,DVD 480i
2. 720x480 15.63 59.94 SDTV,DVD 480i
3. 720x480 31.47 59.94 480p
4. 720x480 31.50 60.00 480p
5. 720x576 15.625 50.00 SDTV,DVD 625 Line
6. 720x576 31.25 50.00 HDTV 576p
7. 1280x720 45.00 50.00 HDTV 720p
8. 1280x720 44.96 59.94 HDTV 720p
9. 1280x720 45.00 60.00 HDTV 720p
10. 1920x1080 31.25 50.00 HDTV 1080i
11. 1920x1080 33.75 60.00 HDTV 1080i
12. 1920x1080 33.72 59.94 HDTV 1080i
13. 1920x1080 56.250 50 HDTV 1080p
14. 1920x1080 67.5 60 HDTV 1080p
No.
Specification
Proposed Remarks
Resolution H-freq(kHz) V-freq(Hz) Pixel Clock(MHz)
1. 720*400 31.468 70.08 28.321 For only DOS mode
2. 640*480 31.469 59.94 25.17 VESA Input 848*480 60 Hz, 852*480 60 Hz
-> 640*480 60 Hz Display
3. 800*600 37.879 60.31 40.00 VESA
4. 1024*768 48.363 60.00 65.00 VESA(XGA)
5. 1360*768 47.72 59.8 84.75 WXGA
6. 1920*1080 66.587 59.93 138.625 WUXGA FHD model
6. RGB (PC)
7. HDMI Input
(1) DTV Mode
No. Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) Proposed Remark
1. 720*480 31.469 / 31.5 59.94 / 60 27.00 / 27.03 SDTV 480P
2. 720*576 31.25 50 54 SDTV 576P
3. 1280*720 37.500 50 74.25 HDTV 720P
4. 1280*720 44.96 / 45 59.94 / 60 74.17 / 74.25 HDTV 720P
5. 1920*1080 33.72 / 33.75 59.94 / 60 74.17 / 74.25 HDTV 1080I
6. 1920*1080 28.125 50.00 74.25 HDTV 1080I
7. 1920*1080 26.97 / 27 23.97 / 24 74.17 / 74.25 HDTV 1080P
8. 1920*1080 33.716 / 33.75 29.976 / 30.00 74.25 HDTV 1080P
9. 1920*1080 56.250 50 148.5 HDTV 1080P
10. 1920*1080 67.43 / 67.5 59.94 / 60 148.35 / 148.50 HDTV 1080P
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LGE Internal Use OnlyCopyright © 2011 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
No. Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) Proposed Remark
1 720*400 31.468 70.08 28.321 HDCP
2 640*480 31.469 59.94 25.17 VESA HDCP
3 800*600 37.879 60.31 40.00 VESA HDCP
4 1024*768 48.363 60.00 65.00 VESA(XGA) HDCP
5 1360*768 47.72 59.8 84.75 WXGA HDCP
6 1280*1024 63.981 60.02 108 SXGA HDCP
7 1920*1080 67.5 60.00 138.625 WUXGA HDCP / FHD model
(2) PC Mode
8. 3D Mode - HDMI & USB
(1) HDMI Input (V1.4a)
No. Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) Proposed 3D input proposed mode
1 1920*1080 53.95 / 54 23.98 / 24 148.35/148.5 HDTV 1080P Frame packing
2 1280*720 89.9 / 90 59.94/60 148.35/148.5 HDTV 720P Frame packing
3 1280*720 75 50 148.5 HDTV 720P Frame packing
4 1920*1080 67.5 60 148.5 HDTV 1080P Side by Side(half), Top and bottom
5 1920*1080 56.3 50 148.5 HDTV 1080P Side by Side(half), Top and bottom
6 1280*720 45 60 74.25 HDTV 720P Side by Side(half), Top and Bottom
7 1280*720 37.5 50 74.25 HDTV 720P Side by Side(half), Top and Bottom
8 1920*1080 33.7 60 74.25 HDTV 1080i Side by Side(half), Top and Bottom
9 1920*1080 28.1 50 74.25 HDTV 1080i Side by Side(half), Top and Bottom
10 1920*1080 27 24 74.25 HDTV 1080P Side by Side(half), Top and Bottom
11 1920*1080 33.7 30 89.1 HDTV 1080P Side by Side(half), Top and Bottom
(2) HDMI Input(1.3)
No Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) Proposed 3D input proposed mode
1 1280*720 45.00 60.00 74.25 HDTV 720P Side by Side, Top & Bottom
2 1280*720 37.500 50 74.25 HDTV 720P Side by Side, Top & Bottom
3 1920*1080 33.75 60.00 74.25 HDTV 1080I Side by Side, Top & Bottom
4 1920*1080 28.125 50.00 74.25 HDTV 1080I Side by Side, Top & Bottom
5 1920*1080 27.00 24.00 74.25 HDTV 1080P Side by Side, Top & Bottom, Checkerboard
6 1920*1080 33.75 30.00 74.25 HDTV 1080P Side by Side, Top & Bottom, Checkerboard
7 1920*1080 67.50 60.00 148.5 HDTV 1080P Side by Side, Top & Bottom, Checkerboard
Single Frame Sequential
8 1920*1080 56.250 50 148.5 HDTV 1080P Side by Side, Top & Bottom, Checkerboard
Single Frame Sequential
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LGE Internal Use OnlyCopyright © 2011 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
No. Side by Side Top & Bottom Checkerboard Single Frame Sequential Frame Packing 2D to 3D
1
(6) USB Input
(3) RF 3D Input(DTV)
(8) 3D Input mode
RL
L
2D to 3D
No. Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) Proposed 3D input proposed mode
1 1280*720 37.500 50 74.25 HDTV 720P Side by Side, Top & Bottom
2 1920*1080 28.125 50 74.25 HDTV 1080I Side by Side, Top & Bottom
(4) 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
(5) DLNA
No. Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) Proposed 3D input proposed mode
1 1920*1080 33.75 30 74.25 HDTV 1080P Side by Side, Top & Bottom,
Checkerboard
No. Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) 3D input proposed mode Proposed
1 1920*1080 33.75 30.000 74.25 Side by Side HDTV 1080P
Top & Bottom
Checkerboard
(7) DVR
No. Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) 3D input proposed mode Proposed
1 ALL - - - Side by Side
Top & Bottom
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LGE Internal Use OnlyCopyright © 2011 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
ADJUSTMENT INSTRUCTION
1. Application Range
This specification sheet is applied to all of the LED LCD TV with LB12N 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.
2) Adjustment must be done in the correct order.
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.
4) The input voltage of the receiver must keep AC 100-240
V~, 50/60 Hz.
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.
[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. 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.
(2) Equipment & Condition
1) Jig (RS-232C protocol)
2) MSPG-925 Series Pattern Generator(MSPG-925FA,
pattern - 65)
- Resolution : 480i Comp1 1080P Comp1 1920*1080 RGB
- Pattern : Horizontal 100% Color Bar Pattern
- 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&1080p Comp1]
- xb 00 06 [Change input source to RGB(1024*768)]
- ad 00 10 [Adjust 1920*1080 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
(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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LGE Internal Use OnlyCopyright © 2011 LG Electronics. Inc. All rights reserved.
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2) MAC Address Download, Whidevine Download
- Com 1,2,3,4 and 115200(Baud rate)
3.3. LAN
(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) WIDEVINE key Inspection
- Confirm key input data at the “IN START” MENU Mode.
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 Program. *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.
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)
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
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
SET PC
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LGE Internal Use OnlyCopyright © 2011 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
* 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) It 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 ‘6.Model Number D/L’ like below photo. c. Input the Factory model name(ex 42LD450-TA) or Serial
number like photo.
d. Check the model name Instart menu. -> Factory name
displayed. (ex 42LE7500-TA)
e. Check the Diagnostics.(DTV country only) -> Buyer model
displayed. (ex 42LE7500-TA)
3.6. WIFI MAC ADDRESS CHECK
a. Using RS232
b. Check the menu on in-start
4. Manual Adjustment
4.1. ADC Adjustment
4.1.1. Overview
ADC adjustment is needed to find the optimum black level and gain in Analog-to-Digital device and to compensate RGB deviation.
4.1.2. Equipment & Condition
(1) Adjustment Remote control (2) 801GF(802B, 802F, 802R) or MSPG925FA Pattern Generator
- Resolution :
480i, 720*480(MSPG-925FA -> Model: 209, Pattern: 65) ­480i 1080p, 1920*1080(MSPG-925FA -> Model: 225, Pattern:
65) - 1080p
- Pattern : Horizontal 100 % Color Bar Pattern
- Pattern level: 0.7 ± 0.1 Vp-p
- Image
(3) Must use standard cable.
4.1.3. Adjust method
(1) ADC 480i, 1080p Comp1
1) Check connected condition of Component 1 cable to the
equipment.
2) Give a 480i, 1080p Mode, Horizontal 100% Color Bar
Pattern to Component 1.
(MSPG-925FA -> Model: 209, Pattern: 65) - 480i (MSPG-925FA -> Model: 225, Pattern: 65) - 1080p
3) Change input mode as Component1 and picture mode
as “Standard”.
4) Press the “In-start” key on the Adjustment remote control
after at least 1 min of signal reception. Then, select 7. External ADC -> 1. COMP 1080p on the menu. Press “Enter” key. The adjustment will start automatically.
5) If ADC calibration is successful, “ADC RGB Success” is
displayed. If ADC calibration is failure, “ADC RGB Fail” is displayed.
6) If ADC calibration is failure, after recheck ADC pattern or
condition retry calibration. Error message refer to 5).
(2) ADC 1920*1080 RGB
1) Check connected condition of Component & RGB cable
to the equipment
2) Give a 1920*1080 Mode, 100 % Horizontal Color Bar
Pattern to RGB port.
(MSPG-925 Series -> model: 225, pattern: 65 )
3) Change input mode as RGB and picture mode as “Standard”.
4) Press the In-start key on the ADJ remote control after at
least 1 min of signal reception. Then, select 7. External ADC -> 1. COMP 1080p on the menu. Press enter key. The adjustment will start automatically.
5) If ADC calibration is successful, “ADC RGB Success” is
displayed. If ADC calibration is failure, “ADC RGB Fail” is displayed.
6) If ADC calibration is failure, after recheck ADC pattern or
condition retry calibration. Error message refer to 5).
H-freq(kHz) V-freq.(Hz)
Transmission [A][I][][Set ID][][20][Cr] [O][K][X] or [NG]
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LGE Internal Use OnlyCopyright © 2011 LG Electronics. Inc. All rights reserved.
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4.2. EDID(The Extended Display Identification Data)/DDC(Display Data Channel) download
(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”.
(2) Equipment
- Adjustment remote control
- Since embedded EDID data is used, EDID download JIG, HDMI cable and D-sub cable are not need.
(3)Download method
1) Press “ADJ” key on the Adjustment remote control then
select “10.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.
(4) EDID DATA
A RGB
A HDMI(FHD 3D, HDMI 1.4a, 3D)
* Physical Add & Checksum(HDMI1/2/3/4)
4.3. White Balance Adjustment
4.3.1. Overview
A W/B adj. Objective & How-it-works
(1) Objective: To reduce each Panel’s W/B deviation (2) 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.
(3) Adjustment condition : normal temperature
1) Surrounding Temperature : 25 ºC ± 5 ºC
2) Warm-up time: About 5 Min
3) Surrounding Humidity : 20 % ~ 80 %
4.3.2. Equipment
1) Color Analyzer: CA-210 (LED Module : CH 14)
2) Adjustment Computer(During auto adj., RS-232C protocol is needed)
3) Adjustment Remote control
4) Video Signal Generator MSPG-925F 720p/216-Gray
(Model: 217, Pattern: 78)
-> Only when internal pattern is not available
A Color Analyzer Matrix should be calibrated using CS-1000.
4.3.3. Equipment connection MAP
4.3.4. Adj. Command (Protocol)
<Command Format>
- 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]
D-sub to D-sub DVI-D to HDMI or HDMI to HDMI
For HDMI EDIDFor Analog EDID
0123456789ABCDEF
0 00FFFFFFFFFFFF001E6D01 00 010101 01
10 01 15 01 03 80 10 09 78 0A EE 91 A3 54 4C 99 26
20 0F 50 54 A1 08 00 71 40 81 C0 81 00 81 80 95 00
30 90 40 A9 C0 B3 00 02 3A 80 18 71 38 2D 40 58 2C
40 45 00 A0 5A 00 00 00 1E 66 21 50 B0 51 00 1B 30
50 40 70 36 00 A0 5A 00 00 00 1E 00 00 00 FD 00 39
60 3F 1F 52 10 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 7F
80 02 03 37 F1 4E 10 1F 84 13 05 14 03 02 12 20 21
90 22 15 01 26 15 07 50 09 57 07 78 03 0C 00 XX XX
A0 B8 2D 20 C0 0E 01 40 0A 3C 08 10 18 10 98 10 58
B0 10 38 10 E3 05 03 01 01 1D 80 18 71 1C 16 20 58
C0 2C 25 00 A0 5A 00 00 00 9E 01 1D 00 80 51 D0 1A
D0 20 6E 88 55 00 A0 5A 00 00 00 1A 02 3A 80 18 71
E0 38 2D 40 58 2C 45 00 A0 5A 00 00 00 1E 00 00 00
F0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 XX
0123456789ABCDEF
0 00FFFFFFFFFFFF001E6D01 00 010101 01
10 01 15 01 03 68 10 09 78 0A EE 91 A3 54 4C 99 26
20 0F 50 54 A1 08 00 71 40 81 C0 81 00 81 80 95 00
30 90 40 A9 C0 B3 00 02 3A 80 18 71 38 2D 40 58 2C
40 45 00 A0 5A 00 00 00 1E 66 21 50 B0 51 00 1B 30
50 40 70 36 00 A0 5A 00 00 00 1E 00 00 00 FD 00 3A
60 3E 1E 53 10 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 00 98
INPUT 9Eh/9Fh(Physical Add) FFh(Checksum)
HDMI 1 10 00 CB
HDMI 2 20 00 BB
HDMI 3 30 00 AB
HDMI 4 40 00 9B
Color Analyzer
Comp uter
Pattern Generator
RS- 232C
RS-232C
RS-232C
Probe
Signal Source
* If TV internal pattern is used, not needed
LEN CMD VAL
CS
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LGE Internal Use OnlyCopyright © 2011 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
A RS-232C Command used during auto-adjustment.
Ex) wb 00 00 -> Begin white balance auto-adj.
wb 00 10 -> Gain adj. ja 00 ff -> Adj. data jb 00 c0 ... ... wb 00 1f -> Gain adj. completed
*(wb 00 20(Start), wb 00 2f(end)) -> Off-set adj.
wb 00 ff -> End white balance auto-adj.
A Adj. Map
4.3.5. Adjustment method
(1) Auto adjustment method
1) Set TV in adjustment mode using POWER ON key.
2) Zero calibrate probe then place it on the center of the Display.
3) Connect Cable (RS-232C)
4) Select mode in adj. Program and begin adjustment.
5) When adjustment is complete(OK sign), check adj. status pre mode. (Warm, Medium, Cool)
6) Remove probe and RS-232C cable to complete adjustment.
A W/B Adj. must begin as start command “wb 00 00” , and
finish as end command “wb 00 ff”, and Adj. offset if need.
(2) Manual adjustment. method
1) Set TV in Adj. mode using POWER ON.
2) Zero Calibrate the probe of Color Analyzer, then place it on the center of LCD module within 10 cm of the surface.
3) Press ADJ key -> EZ adjust using adj. R/C -> 7. White­Balance then press the cursor to the right(key
G).
(When right key(G) is pressed 216 Gray internal pattern
will be displayed)
4) One of R Gain / G Gain / B Gain should be fixed at 192, and the rest will be lowered to meet the desired value.
5) Adjustment is performed in COOL, MEDIUM, WARM 3 modes of color temperature.
A If internal pattern is not available, use RF input. In EZ
Adj. menu 7.White Balance, you can select one of 2 Test-pattern: ON, OFF. Default is inner(ON). By selecting OFF, you can adjust using RF signal in 216 Gray pattern.
A Adjustment condition and cautionary items
1) Lighting condition in surrounding area Surrounding lighting should be lower 10 lux. Try to isolate adj. area into dark surrounding.
2) Probe location : Color Analyzer(CA-210) probe should be within 10 cm
and perpendicular of the module surface (80º ~ 100º)
3) Aging time
- After Aging Start, Keep the Power ON status during
5 Minutes.
- In case of LCD, Back-light on should be checked
using no signal or Full-white pattern.
4.3.6. Reference(White balance adjusmtment coordinate and color temperature)
A Luminance : 204 Gray A Standard color coordinate and temperature using CS-1000
(over 26 inch)
A
Standard color coordinate and temperature using CA-210(CH 9)
ITEM Command Data Range(Hex.) Default
Cmd 1 Cmd 2 Min Max (Decimal)
Cool R-Gain j g 00 C0
G-Gain j h 00 C0
B-Gain j i 00 C0
R-Cut
G-Cut
B-Cut
Medium R-Gain j a 00 C0
G-Gain j b 00 C0
B-Gain j c 00 C0
R-Cut
G-Cut
B-Cut
Warm R-Gain j d 00 C0
G-Gain j e 00 C0
B-Gain j f 00 C0
R-Cut
G-Cut
RS-232C COMMAND
Explanation
[CMD ID DATA]
wb 00 00 Begin White Balance adj.
wb 00 10 Gain adj.(internal white pattern)
wb 00 1f Gain adj. completed
wb 00 20 Offset adj.(internal white pattern)
wb 00 2f Offset adj. completed
wb 00 ff End White Balance adj.(Internal pattern disappears)
Mode Color Coordination Temp ∆UV
xy
COOL 0.269 ± 0.002 0.273 ± 0.002 13000 K 0.0000
MEDIUM 0.285 ± 0.002 0.293 ± 0.002 9300 K 0.0000
WARM 0.313 ± 0.002 0.329 ± 0.002 6500 K 0.0000
Mode Color Coordination Temp ∆UV
xy
COOL 0.269 0.273 13000 K 0.0000
MEDIUM 0.285 0.293 9300 K 0.0000
WARM 0.313 0.329 6500 K 0.0000
- 13 -
LGE Internal Use OnlyCopyright © 2011 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
4.3.7. ALELF & EDGE LED White balance table
- ALELF&EDGE LED module change color coordinate because of aging time.
- Apply under the color coordinate table, for compensated aging time.
- IOL(LGD Only)
4.4. Wireless function check
1) Connect set and Dongle of Wireless to Cable of HDMI &
TTA 20Pin.
2) At OSD of SET, check the message like Fig 3.
3) Detach Cable of Wireless Dongle.
4.5. EYE-Q function check
1) Turn on TV.
2) Press EYE key of Adjustment remote control.
3) Cover the Eye Q II sensor on the front of the using your hand and wait for 6 seconds.
4) Confirm that R/G/B value is lower than 10 of the “Raw Data (Sensor data, Back light)”. If after 6 seconds, R/G/B value is not lower than 10, replace Eye Q II sensor.
5) Remove your hand from the Eye Q II sensor and wait for 6 seconds.
6) Confirm that “ok” pop up. If change is not seen, replace Eye Q II sensor.
4.6. Local Dimming Function Check
Step 1) Turn on TV. Step 2) At the Local Dimming mode, module Edge Backlight
moving right to left Back light of IOP module moving. Step 3) Confirm the Local Dimming mode. Step 4) Press “exit” key.
Aging Time Cool Medium Warm
GP3 (Min.) X Y X Y X Y
269 273 285 293 313 329
1 0-2 282 294 298 314 322 343
2 3-5 281 292 297 312 321 341
3 6-9 280 291 296 311 320 340
4 10-19 279 289 295 309 319 338
5 20-35 277 284 293 304 317 333
6 36-49 274 279 290 299 314 328
7 50-79 271 277 287 297 311 326
8 80-149 270 274 286 294 310 323
9 Over 150 269 273 285 293 309 322
Fig.1
Fig.3 Connect the Dongle
Fig.2
Connect
Local Dimming(IOL Model)
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