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LED TV
SERVICE MANUAL
CHASSIS : LA32B
MODEL : 32LN530B/536B 32LN530B/536B-UA/UB
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO : MFL67696501 (1304-REV01) Printed in Korea
CONTENTS
CONTENTS .............................................................................................. 2
PRODUCT SAFETY ................................................................................. 3
SPECIFICATION ....................................................................................... 4
ADJUSTMENT INSTRUCTION ................................................................ 9
TROUBLE SHOOTING ............................................................................ 16
BLOCK DIAGRAM.................................................................................. 22
EXPLODED VIEW .................................................................................. 24
SCHEMATIC CIRCUIT DIAGRAM ..............................................................
Copyright © LG Electronics. Inc. All rights reserved. -2- LGE Internal Use Only
Only for training and service purposes
SAFETY PRECAUTIONS
IMPORTANT SAFETY NOTICE
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 Leakage Current Hot Check (See below Figure)
Plug the AC cord directly into the AC outlet.
An isolation Transformer should always be used during the
servicing of a receiver whose chassis is not isolated from the AC Do not use a line Isolation Transformer during this check.
power line. Use a transformer of adequate power rating as this Connect 1.5 K / 10 watt resistor in parallel with a 0.15 uF capacitor
protects the technician from accidents resulting in personal injury between a known good earth ground (Water Pipe, Conduit, etc.)
from electrical shocks. and the exposed metallic parts.
Measure the AC voltage across the resistor using AC voltmeter
It will also protect the receiver and it's components from being with 1000 ohms/volt or more sensitivity.
damaged by accidental shorts of the circuitry that may be Reverse plug the AC cord into the AC outlet and repeat AC voltage
inadvertently introduced during the service operation. measurements for each exposed metallic part. Any voltage
measured must not exceed 0.75 volt RMS which is corresponds to
If any fuse (or Fusible Resistor) in this TV receiver is blown, 0.5 mA.
replace it with the specified. In case any measurement is out of the limits specified, there is
possibility of shock hazard and the set must be checked and
When replacing a high wattage resistor (Oxide Metal Film Resistor, repaired before it is returned to the customer.
over 1 W), keep the resistor 10 mm away from PCB.
Leakage Current Hot Check circuit
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 M and 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.
Copyright © LG Electronics. Inc. All rights reserved. -3- LGE Internal Use Only
Only for training and service purposes
SERVICING PRECAUTIONS
CAUTION: Before servicing receivers covered by this service 2. After removing an electrical assembly equipped with ES
manual and its supplements and addenda, read and follow the devices, place the assembly on a conductive surface such as
SAFETY PRECAUTIONS on page 3 of this publication. aluminum foil, to prevent electrostatic charge buildup or expo-
NOTE: If unforeseen circumstances create conflict between the sure of the assembly.
following servicing precautions and any of the safety precautions 3. Use only a grounded-tip soldering iron to solder or unsolder ES
on page 3 of this publication, always follow the safety precautions. devices.
Remember: Safety First. 4. Use only an anti-static type solder removal device. Some solder
removal devices not classified as "anti-static" can generate
General Servicing Precautions electrical charges sufficient to damage ES devices.
1. Always unplug the receiver AC power cord from the AC power 5. Do not use freon-propelled chemicals. These can generate
source before; electrical charges sufficient to damage ES devices.
a. Removing or reinstalling any component, circuit board mod- 6. Do not remove a replacement ES device from its protective
ule or any other receiver assembly. package until immediately before you are ready to install it.
b. Disconnecting or reconnecting any receiver electrical plug or (Most replacement ES devices are packaged with leads electri-
other electrical connection. cally shorted together by conductive foam, aluminum foil or
c. Connecting a test substitute in parallel with an electrolytic comparable conductive material).
capacitor in the receiver. 7. Immediately before removing the protective material from the
CAUTION: A wrong part substitution or incorrect polarity leads of a replacement ES device, touch the protective material
installation of electrolytic capacitors may result in an explo- to the chassis or circuit assembly into which the device will be
sion hazard. installed.
2. Test high voltage only by measuring it with an appropriate CAUTION: Be sure no power is applied to the chassis or circuit,
high voltage meter or other voltage measuring device (DVM, and observe all other safety precautions.
FETVOM, etc) equipped with a suitable high voltage probe. 8. Minimize bodily motions when handling unpackaged replace-
Do not test high voltage by "drawing an arc". ment ES devices. (Otherwise harmless motion such as the
3. Do not spray chemicals on or near this receiver or any of its brushing together of your clothes fabric or the lifting of your
assemblies. foot from a carpeted floor can generate static electricity suf-
4. Unless specified otherwise in this service manual, clean ficient to damage an ES device.)
electrical contacts only by applying the following mixture to the
contacts with a pipe cleaner, cotton-tipped stick or comparable General Soldering Guidelines
non-abrasive applicator; 10 % (by volume) Acetone and 90 % 1. Use a grounded-tip, low-wattage soldering iron and appropriate
(by volume) isopropyl alcohol (90 % - 99 % strength) tip size and shape that will maintain tip temperature within the
CAUTION: This is a flammable mixture. range or 500 °F to 600 °F.
Unless specified otherwise in this service manual, lubrication of 2. Use an appropriate gauge of RMA resin-core solder composed
contacts in not required. of 60 parts tin/40 parts lead.
5. Do not defeat any plug/socket B+ voltage interlocks with which 3. Keep the soldering iron tip clean and well tinned.
receivers covered by this service manual might be equipped. 4. Thoroughly clean the surfaces to be soldered. Use a mall wire-
6. Do not apply AC power to this instrument and/or any of its bristle (0.5 inch, or 1.25 cm) brush with a metal handle.
electrical assemblies unless all solid-state device heat sinks are Do not use freon-propelled spray-on cleaners.
correctly installed. 5. Use the following unsoldering technique
7. Always connect the test receiver ground lead to the receiver a. Allow the soldering iron tip to reach normal temperature.
chassis ground before connecting the test receiver positive (500 °F to 600 °F)
lead. b. Heat the component lead until the solder melts.
Always remove the test receiver ground lead last. c. Quickly draw the melted solder with an anti-static, suction-
8. Use with this receiver only the test fixtures specified in this type solder removal device or with solder braid.
service manual. CAUTION: Work quickly to avoid overheating the circuit
CAUTION: Do not connect the test fixture ground strap to any board printed foil.
heat sink in this receiver. 6. Use the following soldering technique.
a. Allow the soldering iron tip to reach a normal temperature
Electrostatically Sensitive (ES) Devices (500 °F to 600 °F)
Some semiconductor (solid-state) devices can be damaged eas- b. First, hold the soldering iron tip and solder the strand against
ily by static electricity. Such components commonly are called the component lead until the solder melts.
Electrostatically Sensitive (ES) Devices. Examples of typical ES c. Quickly move the soldering iron tip to the junction of the
devices are integrated circuits and some field-effect transistors component lead and the printed circuit foil, and hold it there
and semiconductor "chip" components. The following techniques only until the solder flows onto and around both the compo-
should be used to help reduce the incidence of component dam- nent lead and the foil.
age caused by static by static electricity. CAUTION: Work quickly to avoid overheating the circuit
1. Immediately before handling any semiconductor component or board printed foil.
semiconductor-equipped assembly, drain off any electrostatic d. Closely inspect the solder area and remove any excess or
charge on your body by touching a known earth ground. Alter- splashed solder with a small wire-bristle brush.
natively, obtain and wear a commercially available discharging
wrist strap device, which should be removed to prevent poten-
tial shock reasons prior to applying power to the unit under test.
Copyright © LG Electronics. Inc. All rights reserved. -4- LGE Internal Use Only
Only for training and service purposes
IC Remove/Replacement 3. Solder the connections.
Some chassis circuit boards have slotted holes (oblong) through CAUTION: Maintain original spacing between the replaced
which the IC leads are inserted and then bent flat against the cir- component and adjacent components and the circuit board to
cuit foil. When holes are the slotted type, the following technique prevent excessive component temperatures.
should be used to remove and replace the IC. When working with
boards using the familiar round hole, use the standard technique Circuit Board Foil Repair
as outlined in paragraphs 5 and 6 above. Excessive heat applied to the copper foil of any printed circuit
board will weaken the adhesive that bonds the foil to the circuit
Removal board causing the foil to separate from or "lift-off" the board. The
1. Desolder and straighten each IC lead in one operation by following guidelines and procedures should be followed whenever
gently prying up on the lead with the soldering iron tip as the this condition is encountered.
solder melts.
2. Draw away the melted solder with an anti-static suction-type At IC Connections
solder removal device (or with solder braid) before removing To repair a defective copper pattern at IC connections use the
the IC. following procedure to install a jumper wire on the copper pattern
Replacement side of the circuit board. (Use this technique only on IC connec-
1. Carefully insert the replacement IC in the circuit board. tions).
2. Carefully bend each IC lead against the circuit foil pad and
solder it. 1. Carefully remove the damaged copper pattern with a sharp
3. Clean the soldered areas with a small wire-bristle brush. knife. (Remove only as much copper as absolutely necessary).
(It is not necessary to reapply acrylic coating to the areas). 2. carefully scratch away the solder resist and acrylic coating (if
used) from the end of the remaining copper pattern.
"Small-Signal" Discrete Transistor 3. Bend a small "U" in one end of a small gauge jumper wire and
Removal/Replacement carefully crimp it around the IC pin. Solder the IC connection.
1. Remove the defective transistor by clipping its leads as close 4. Route the jumper wire along the path of the out-away copper
as possible to the component body. pattern and let it overlap the previously scraped end of the
2. Bend into a "U" shape the end of each of three leads remaining good copper pattern. Solder the overlapped area and clip off
on the circuit board. any excess jumper wire.
3. Bend into a "U" shape the replacement transistor leads.
4. Connect the replacement transistor leads to the corresponding At Other Connections
leads extending from the circuit board and crimp the "U" with Use the following technique to repair the defective copper pattern
long nose pliers to insure metal to metal contact then solder at connections other than IC Pins. This technique involves the
each connection. installation of a jumper wire on the component side of the circuit
board.
Power Output, Transistor Device
Removal/Replacement 1. Remove the defective copper pattern with a sharp knife.
1. Heat and remove all solder from around the transistor leads. Remove at least 1/4 inch of copper, to ensure that a hazardous
2. Remove the heat sink mounting screw (if so equipped). condition will not exist if the jumper wire opens.
3. Carefully remove the transistor from the heat sink of the circuit 2. Trace along the copper pattern from both sides of the pattern
board. break and locate the nearest component that is directly con-
4. Insert new transistor in the circuit board. nected to the affected copper pattern.
5. Solder each transistor lead, and clip off excess lead. 3. Connect insulated 20-gauge jumper wire from the lead of the
6. Replace heat sink. nearest component on one side of the pattern break to the lead
of the nearest component on the other side.
Diode Removal/Replacement Carefully crimp and solder the connections.
1. Remove defective diode by clipping its leads as close as pos- CAUTION: Be sure the insulated jumper wire is dressed so the
sible to diode body. it does not touch components or sharp edges.
2. Bend the two remaining leads perpendicular y to the circuit
board.
3. Observing diode polarity, wrap each lead of the new diode
around the corresponding lead on the circuit board.
4. Securely crimp each connection and solder it.
5. Inspect (on the circuit board copper side) the solder joints of
the two "original" leads. If they are not shiny, reheat them and if
necessary, apply additional solder.
Fuse and Conventional Resistor
Removal/Replacement
1. Clip each fuse or resistor lead at top of the circuit board hollow
stake.
2. Securely crimp the leads of replacement component around
notch at stake top.
Copyright © LG Electronics. Inc. All rights reserved. -5- LGE Internal Use Only
Only for training and service purposes
SPECIFICATION
NOTE : Specifications and others are subject to change without notice for improvement.
1. Application range 3. Test method
This spec sheet is applied LED TV with LA32Bchassis 1) Performance: LGE TV test method followed
2) Demanded other specification
- Safety : UL, CSA, IEC specification
- EMC: FCC, ICES, IEC specification
2. Test condition
Each part is tested as below without special notice.
1) Temperature : 25 ºC ± 5 ºC(77 ± 9 ºF) , CST : 40 ºC±5 ºC
2) Relative Humidity: 65 % ± 10 %
3) Power Voltage
Market Input voltage Frequency Remark
USA 110~240V 50/60Hz Standard Voltage of each
product 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 20 minutes prior to
the adjustment
4. General Specification
No Item Specification Result Remark
1. Receiving System 1) ATSC / NTSC-M / 64 QAM / 256 QAM
2. Available Channel 1) VHF : 02~13
2) UHF : 14~69
3) DTV : 02-69
4) CATV : 01~135
5) CADTV : 01~135
3. Input Voltage AC 100 ~ 240V 50/60Hz Mark : 110V, 60Hz (N.America)
4. Market NORTH AMERICA
5. Screen Size 32/39/42/47/50/55inch Wide 55LN5400-UA
(1920 × 1080) 50LN5400-UA
47LN5400-UA
42LN5400-UA
42LN5300-UB
39LN5300-UB
32LN5300-UB
55LN5200-UA
47LN5200-UA
42LN5200-UA
32/37inch Wide (1366 × 768) 37LN530B-UA
32LN530B-UA
32LN520B-UA
6. Aspect Ratio 16:9
7. Tuning System FS
Copyright © LG Electronics. Inc. All rights reserved. -6- LGE Internal Use Only
Only for training and service purposes
No Item Specification Result Remark
8. Module POLA LC550DUK-SEE1 LGD 55LN5400-UA
Direct LC500DUE-SFR1 LGD 50LN5400-UA
Direct LC470DUE-SFR1 LGD 47LN5400-UA
Direct LC420DUE-SFR1 LGD 42LN5400-UA
Direct LC420DUE-SFR1 LGD 42LN5300-UB
POLA TBD AUO 42LN5300-UB
POLA HC420DUN-SLFP1 LGD 42LN5300-UB
POLA HC390DUN-VCFP1 CMI 39LN5300-UB
POLA TBD AUO 39LN5300-UB
POLA HC320DXN-VSFP1 CSOT 32LN5300-UB
Direct LC320DUE-SFR1 LGD 32LN5300-UB
Direct LC370DXE-SFR1 LGD 37LN530B-UA
Direct LC320DXE-SFR1 LGD 32LN530B-UA
POLA HC320DXN-SLFP1 LGD 32LN530B-UA
Direct i-D LGD 55LN5200-UA
Direct i-D LGD 47LN5200-UA
Direct i-D LGD 42LN5200-UA
Direct i-D LGD 32LN520B-UA
9. Operating Environment 1) Temp : 0 ~ 40 deg
2) Humidity : ~ 80 %
10. Storage Environment 1) Temp : -20 ~ 60 deg
2) Humidity : ~ 85 %
Copyright © LG Electronics. Inc. All rights reserved. -7- LGE Internal Use Only
Only for training and service purposes
5. Supported video resolutions
5.1. Component input(Y, CB/PB, CR/PR)
No Resolution H-freq(kHz) V-freq.(kHz) Pixel clock Proposed
1. 720*480 15.73 60.00 13.5135 SDTV ,DVD 480I
2. 720*480 15.73 59.94 13.50 SDTV ,DVD 480I
3. 720*480 31.50 60.00 27.027 SDTV 480P
4. 720*480 31.47 59.94 27.00 SDTV 480P
5. 1280*720 45.00 60.00 74.25 HDTV 720P
6. 1280*720 44.96 59.94 74.176 HDTV 720P
7. 1920*1080 33.75 60.00 74.25 HDTV 1080I
8. 1920*1080 33.72 59.94 74.176 HDTV 1080I
9. 1920*1080 67.50 60.00 148.50 HDTV 1080P
10. 1920*1080 67.432 59.94 148.352 HDTV 1080P
11. 1920*1080 27.00 24.00 74.25 HDTV 1080P
12. 1920*1080 26.97 23.94 74.176 HDTV 1080P
13. 1920*1080 33.75 30.00 74.25 HDTV 1080P
14. 1920*1080 33.71 29.97 74.176 HDTV 1080P
5.2. HDMI Input (DTV)
No Resolution H-freq(kHz) V-freq.(kHz) Pixel clock Proposed
DTV
1. 720*480 31.47 60.00 27.027 SDTV 480P
2. 720*480 31.47 59.94 27.00 SDTV 480P
3. 1280*720 45.00 60.00 74.25 HDTV 720P
4. 1280*720 44.96 59.94 74.176 HDTV 720P
5. 1920*1080 33.75 60.00 74.25 HDTV 1080I
6. 1920*1080 33.72 59.94 74.176 HDTV 1080I
7. 1920*1080 67.50 60.00 148.50 HDTV 1080P
8. 1920*1080 67.432 59.94 148.352 HDTV 1080P
9. 1920*1080 27.00 24.00 74.25 HDTV 1080P
10. 1920*1080 26.97 23.976 74.176 HDTV 1080P
11. 1920*1080 33.75 30.00 74.25 HDTV 1080P
12. 1920*1080 33.71 29.97 74.176 HDTV 1080P
Copyright © LG Electronics. Inc. All rights reserved. -8- LGE Internal Use Only
Only for training and service purposes
ADJUSTMENT INSTRUCTION
1. Application 4. MAIN PCBA Adjustments
This spec. sheet applies to LA32B Chassis applied LED TV all
models manufactured in TV factory * Download
(1) Execute ISP program "Mstar ISP Utility" and then click
"Config" tab.
(2) Set as below, and then click "Auto Detect" and check "OK"
2. Specification message
(1) Because this is not a hot chassis, it is not necessary to use If display "Error", Check connect computer, jig, and set.
an isolation transformer. However, the use of isolation (3) Click "Connect" tab. If display "Can't ", Check connect
transformer will help protect test instrument. computer, jig, and set.
(2) Adjustment must be done in the correct order.
(3) The adjustment must be performed in the circumstance of
25 ±5 ºC of temperature and 65±10% of relative humidity if (1) (3)
there is no specific designation
(4) The input voltage of the receiver must keep 100~240V,
50/60Hz
(5) At first Worker must turn on the SET by using Power Only
key.
(6) The receiver must be operated for about 5 minutes prior to (2) OK
the adjustment when module is in the circumstance of over
15 ºC
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
Please Check the Speed :
In case of keeping module is in the circumstance of below To use speed between from 200KHz to 400KHz
-20°C, it should be placed in the circumstance of above
15°C for 3 hours. (4) Click "Read" tab, and then load download file(XXXX.bin) by
clicking "Read"
Caution
When still image is displayed for a period of 20 minutes or
longer (especially where W/B scale is strong. (4)
Digital pattern 13ch and/or Cross hatch pattern 09ch), there
can some afterimage in the black level area
filexxx.bin
3. Adjustment items
3.1. Main PCBA Adjustments
(1) ADC adjustment : ADC adjustment is OTP (Auto ADC)
(2) EDID download : HDMI
Above adjustment items can be also performed in Final
Assembly if needed. (5) Click "Auto" tab and set as below.
Both Board-level and Final assembly adjustment items can (6) Click "Run".
be check using In-Start Menu (1.Adjust Check). (7) After downloading, check "OK" message.
3.2. Final assembly adjustment
(1) White Balance adjustment (5)
(2) RS-232C functionality check
(3) Factory Option setting per destination
(4) Shipment mode setting (In-Stop)
(5) GND and HI-POT test (7) ..........OK
3.3. Appendix
(1) Shipment conditions (6)
(2) Tool option menu
(3) USB Download (S/W Update, Option and Service only)
(4) Preset CH Information
Copyright © LG Electronics. Inc. All rights reserved. -9- LGE Internal Use Only
Only for training and service purposes
4.1. ADC Adjustment 4.2.5. EDID DATA
4.1.1. Overview 4.2.5.1. North America (PCM)
ADC adjustment is needed to find the optimum black level 4.2.5.1.1. FHD Model
and gain in Analog-to-Digital device and to compensate RGB
deviation. HDMI 1-FHD-8BIT (C/S : E808)
ADC adjustment is OTP (Auto ADC) EDID Block 0, Bytes 0-127 [00H-7FH]
0 1 2 3 4 5 6 7 8 9 A B C D E F
4.2. EDID Download -----------------------------------------------------------------------------
4.2.1. Overview 0 | 00 FF FF FF FF FF FF 00 1E 6D 01 00 01 01 01 01
It is a VESA regulation. A PC or a MNT will display an 10 | 01 17 01 03 80 A0 5A 78 0A EE 91 A3 54 4C 99 26
optimal resolution through information sharing without any 20 | 0F 50 54 A1 08 00 31 40 45 40 61 40 71 40 81 80
necessity of user input. It is a realization of "Plug and Play". 30 | 01 01 01 01 01 01 02 3A 80 18 71 38 2D 40 58 2C
40 | 45 00 40 84 63 00 00 1E 66 21 50 B0 51 00 1B 30
4.2.2. Equipment 50 | 40 70 36 00 40 84 63 00 00 1E 00 00 00 FD 00 3A
(1) Since EDID data is embedded, EDID download JIG, HDMI 60 | 3E 1E 53 10 00 0A 20 20 20 20 20 20 00 00 00 FC
cable is not need. 70 | 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 01 E8
(2) Adjust by using remote controller
EDID Block 1, Bytes 128-255 [80H-FFH]
4.2.3. Download method (using DFT)
PC(for communication through RS-232C), UART baud rate: 0 1 2 3 4 5 6 7 8 9 A B C D E F
115200 bps -----------------------------------------------------------------------------
Command : aa 00 00 (Start Factory mode) 0 | 02 03 19 F1 48 90 22 20 05 04 03 02 01 23 09 57
Command : ae 00 10 (Download All EDID) 10 | 07 67 03 0C 00 10 00 80 1E 02 3A 80 18 71 38 2D
Command : aa 00 90 (End of Factory mode) 20 | 40 58 2C 04 05 40 84 63 00 00 1E 01 1D 80 18 71
30 | 1C 16 20 58 2C 25 00 40 84 63 00 00 9E 01 1D 00
40 | 72 51 D0 1E 20 6E 28 55 00 40 84 63 00 00 1E 8C
4.2.4. Download method (using Service Remocon)
50 | 0A D0 8A 20 E0 2D 10 10 3E 96 00 40 84 63 00 00
(1) Press Adj. key on the Adj. R/C.
60 | 18 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
(2) Select EDID D/L menu.
70 | 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 08
(3) By pressing Enter key, EDID download will begin
(4) If Download is successful, OK is display, but If Download is
HDMI 2-FHD-8BIT (C/S : E8F8)
failure, NG is displayed.
EDID Block 0, Bytes 0-127 [00H-7FH]
(5) If Download is failure, Re-try downloads.
Caution : When EDID Download, must remove HDMI
0 1 2 3 4 5 6 7 8 9 A B C D E F
Cable.
-----------------------------------------------------------------------------
(6) EDID Write confirmation
0 | 00 FF FF FF FF FF FF 00 1E 6D 01 00 01 01 01 01
EDID D/L (PCM) 10 | 01 17 01 03 80 A0 5A 78 0A EE 91 A3 54 4C 99 26
HDMI1 : OK 20 | 0F 50 54 A1 08 00 31 40 45 40 61 40 71 40 81 80
30 | 01 01 01 01 01 01 02 3A 80 18 71 38 2D 40 58 2C
HDMI2 : OK 40 | 45 00 40 84 63 00 00 1E 66 21 50 B0 51 00 1B 30
50 | 40 70 36 00 40 84 63 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 01 E8
EDID Block 1, Bytes 128-255 [80H-FFH]
0 1 2 3 4 5 6 7 8 9 A B C D E F
-----------------------------------------------------------------------------
0 | 02 03 19 F1 48 90 22 20 05 04 03 02 01 23 09 57
10 | 07 67 03 0C 00 20 00 80 1E 02 3A 80 18 71 38 2D
20 | 40 58 2C 04 05 40 84 63 00 00 1E 01 1D 80 18 71
30 | 1C 16 20 58 2C 25 00 40 84 63 00 00 9E 01 1D 00
40 | 72 51 D0 1E 20 6E 28 55 00 40 84 63 00 00 1E 8C
50 | 0A D0 8A 20 E0 2D 10 10 3E 96 00 40 84 63 00 00
60 | 18 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
70 | 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 F8
Copyright © LG Electronics. Inc. All rights reserved. - 10 - LGE Internal Use Only
Only for training and service purposes
4.2.5.1.2. HD Model 4.2.5.2. AC3 EDID Data
4.2.5.2.1. FHD Model
HDMI 1-HD (C/S : 7008)
EDID Block 0, Bytes 0-127 [00H-7FH] HDMI 1-FHD-8BIT (C/S : E896)
EDID Block 0, Bytes 0-127 [00H-7FH]
0 1 2 3 4 5 6 7 8 9 A B C D E F
----------------------------------------------------------------------------- 0 1 2 3 4 5 6 7 8 9 A B C D E F
0 | 00 FF FF FF FF FF FF 00 1E 6D 01 00 01 01 01 01 -----------------------------------------------------------------------------
10 | 01 17 01 03 80 A0 5A 78 0A EE 91 A3 54 4C 99 26 0 | 00 FF FF FF FF FF FF 00 1E 6D 01 00 01 01 01 01
20 | 0F 50 54 A1 08 00 31 40 45 40 61 40 71 40 01 01 10 | 01 17 01 03 80 A0 5A 78 0A EE 91 A3 54 4C 99 26
30 | 01 01 01 01 01 01 66 21 50 B0 51 00 1B 30 40 70 20 | 0F 50 54 A1 08 00 31 40 45 40 61 40 71 40 81 80
40 | 36 00 40 84 63 00 00 1E 64 19 00 40 41 00 26 30 30 | 01 01 01 01 01 01 02 3A 80 18 71 38 2D 40 58 2C
50 | 18 88 36 00 40 84 63 00 00 1E 00 00 00 FD 00 3A 40 | 45 00 40 84 63 00 00 1E 66 21 50 B0 51 00 1B 30
60 | 3E 1E 53 10 00 0A 20 20 20 20 20 20 00 00 00 FC 50 | 40 70 36 00 40 84 63 00 00 1E 00 00 00 FD 00 3A
70 | 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 01 70 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 01 E8
EDID Block 1, Bytes 128-255 [80H-FFH]
EDID Block 1, Bytes 128-255 [80H-FFH]
0 1 2 3 4 5 6 7 8 9 A B C D E F
----------------------------------------------------------------------------- 0 1 2 3 4 5 6 7 8 9 A B C D E F
0 | 02 03 19 F1 48 10 22 20 05 84 03 02 01 23 09 57 -----------------------------------------------------------------------------
10 | 07 67 03 0C 00 10 00 80 1E 02 3A 80 18 71 38 2D 0 | 02 03 1C F1 48 90 22 20 05 04 03 02 01 26 15 07
20 | 40 58 2C 04 05 40 84 63 00 00 1E 01 1D 80 18 71 10 | 50 09 57 07 67 03 0C 00 10 00 80 1E 02 3A 80 18
30 | 1C 16 20 58 2C 25 00 40 84 63 00 00 9E 01 1D 00 20 | 71 38 2D 40 58 2C 04 05 40 84 63 00 00 1E 01 1D
40 | 72 51 D0 1E 20 6E 28 55 00 40 84 63 00 00 1E 8C 30 | 80 18 71 1C 16 20 58 2C 25 00 40 84 63 00 00 9E
50 | 0A D0 8A 20 E0 2D 10 10 3E 96 00 40 84 63 00 00 40 | 01 1D 00 72 51 D0 1E 20 6E 28 55 00 40 84 63 00
60 | 18 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 50 | 00 1E 8C 0A D0 8A 20 E0 2D 10 10 3E 96 00 40 84
70 | 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 08 60 | 63 00 00 18 00 00 00 00 00 00 00 00 00 00 00 00
70 | 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 96
HDMI 2-HD (C/S : 70F8)
EDID Block 0, Bytes 0-127 [00H-7FH] HDMI 2-FHD-8BIT (C/S : E886)
EDID Block 0, Bytes 0-127 [00H-7FH]
0 1 2 3 4 5 6 7 8 9 A B C D E F
----------------------------------------------------------------------------- 0 1 2 3 4 5 6 7 8 9 A B C D E F
0 | 00 FF FF FF FF FF FF 00 1E 6D 01 00 01 01 01 01 -----------------------------------------------------------------------------
10 | 01 17 01 03 80 A0 5A 78 0A EE 91 A3 54 4C 99 26 0 | 00 FF FF FF FF FF FF 00 1E 6D 01 00 01 01 01 01
20 | 0F 50 54 A1 08 00 31 40 45 40 61 40 71 40 01 01 10 | 01 17 01 03 80 A0 5A 78 0A EE 91 A3 54 4C 99 26
30 | 01 01 01 01 01 01 66 21 50 B0 51 00 1B 30 40 70 20 | 0F 50 54 A1 08 00 31 40 45 40 61 40 71 40 81 80
40 | 36 00 40 84 63 00 00 1E 64 19 00 40 41 00 26 30 30 | 01 01 01 01 01 01 02 3A 80 18 71 38 2D 40 58 2C
50 | 18 88 36 00 40 84 63 00 00 1E 00 00 00 FD 00 3A 40 | 45 00 40 84 63 00 00 1E 66 21 50 B0 51 00 1B 30
60 | 3E 1E 53 10 00 0A 20 20 20 20 20 20 00 00 00 FC 50 | 40 70 36 00 40 84 63 00 00 1E 00 00 00 FD 00 3A
70 | 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 01 70 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 01 E8
EDID Block 1, Bytes 128-255 [80H-FFH]
EDID Block 1, Bytes 128-255 [80H-FFH]
0 1 2 3 4 5 6 7 8 9 A B C D E F
----------------------------------------------------------------------------- 0 1 2 3 4 5 6 7 8 9 A B C D E F
0 | 02 03 19 F1 48 10 22 20 05 84 03 02 01 23 09 57 -----------------------------------------------------------------------------
10 | 07 67 03 0C 00 20 00 80 1E 02 3A 80 18 71 38 2D 0 | 02 03 1C F1 48 90 22 20 05 04 03 02 01 26 15 07
20 | 40 58 2C 04 05 40 84 63 00 00 1E 01 1D 80 18 71 10 | 50 09 57 07 67 03 0C 00 20 00 80 1E 02 3A 80 18
30 | 1C 16 20 58 2C 25 00 40 84 63 00 00 9E 01 1D 00 20 | 71 38 2D 40 58 2C 04 05 40 84 63 00 00 1E 01 1D
40 | 72 51 D0 1E 20 6E 28 55 00 40 84 63 00 00 1E 8C 30 | 80 18 71 1C 16 20 58 2C 25 00 40 84 63 00 00 9E
50 | 0A D0 8A 20 E0 2D 10 10 3E 96 00 40 84 63 00 00 40 | 01 1D 00 72 51 D0 1E 20 6E 28 55 00 40 84 63 00
60 | 18 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 50 | 00 1E 8C 0A D0 8A 20 E0 2D 10 10 3E 96 00 40 84
70 | 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 F8 60 | 63 00 00 18 00 00 00 00 00 00 00 00 00 00 00 00
70 | 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 86
Copyright © LG Electronics. Inc. All rights reserved. - 11 - LGE Internal Use Only
Only for training and service purposes
4.2.5.2.2. HD Model 5. Final Assembly Adjustment
HDMI 1-HD (C/S : 7096) 5.1. White Balance Adjustment
EDID Block 0, Bytes 0-127 [00H-7FH] 5.1.1. Overview
5.1.1.1. W/B adj. Objective & How-it-works
0 1 2 3 4 5 6 7 8 9 A B C D E F (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
0 | 00 FF FF FF FF FF FF 00 1E 6D 01 00 01 01 01 01 means the panel is at its Full Dynamic Range. In order to
10 | 01 17 01 03 80 A0 5A 78 0A EE 91 A3 54 4C 99 26 prevent saturation of Full Dynamic range and data, one of
20 | 0F 50 54 A1 08 00 31 40 45 40 61 40 71 40 01 01 R/G/B is fixed at 192, and the other two is lowered to find
30 | 01 01 01 01 01 01 66 21 50 B0 51 00 1B 30 40 70 the desired value.
40 | 36 00 40 84 63 00 00 1E 64 19 00 40 41 00 26 30 (3) Adj. condition: normal temperature
50 | 18 88 36 00 40 84 63 00 00 1E 00 00 00 FD 00 3A - Surrounding Temperature: 25±5 ºC
60 | 3E 1E 53 10 00 0A 20 20 20 20 20 20 00 00 00 FC - Warm-up time: About 5 Min
70 | 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 01 70 - Surrounding Humidity: 20% ~ 80%
- Before White balance adjustment, Keep power on status,
EDID Block 1, Bytes 128-255 [80H-FFH] don't power off
0 1 2 3 4 5 6 7 8 9 A B C D E F 5.1.1.2. Adj. condition and cautionary items
----------------------------------------------------------------------------- (1) Lighting condition in surrounding area surrounding lighting
0 | 02 03 1C F1 48 10 22 20 05 84 03 02 01 26 15 07 should be lower 10 lux. Try to isolate adj. area into dark
10 | 50 09 57 07 67 03 0C 00 10 00 80 1E 02 3A 80 18 surrounding.
20 | 71 38 2D 40 58 2C 04 05 40 84 63 00 00 1E 01 1D (2) Probe location: Color Analyzer (CA-210) probe should be
30 | 80 18 71 1C 16 20 58 2C 25 00 40 84 63 00 00 9E within 10cm and perpendicular of the module surface
40 | 01 1D 00 72 51 D0 1E 20 6E 28 55 00 40 84 63 00 (80°~ 100°)
50 | 00 1E 8C 0A D0 8A 20 E0 2D 10 10 3E 96 00 40 84 (3) Aging time
60 | 63 00 00 18 00 00 00 00 00 00 00 00 00 00 00 00 - After Aging Start, Keep the Power ON status during 5
70 | 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 96 Minutes.
- In case of LCD, Back-light on should be checked using no
HDMI 2-HD (C/S : 7086) signal or Full-white pattern.
EDID Block 0, Bytes 0-127 [00H-7FH]
0 1 2 3 4 5 6 7 8 9 A B C D E F 5.1.2. Equipment
----------------------------------------------------------------------------- (1) Color Analyzer: CA-210 (NCG: CH 9 / WCG: CH12 / LED:
0 | 00 FF FF FF FF FF FF 00 1E 6D 01 00 01 01 01 01 CH14)
10 | 01 17 01 03 80 A0 5A 78 0A EE 91 A3 54 4C 99 26 (2) Adj. Computer(During auto adj., RS-232C protocol is
20 | 0F 50 54 A1 08 00 31 40 45 40 61 40 71 40 01 01 needed)
30 | 01 01 01 01 01 01 66 21 50 B0 51 00 1B 30 40 70 (3) Adjust Remocon
40 | 36 00 40 84 63 00 00 1E 64 19 00 40 41 00 26 30 (4) Video Signal Generator MSPG-925F 720p/204-Gray
50 | 18 88 36 00 40 84 63 00 00 1E 00 00 00 FD 00 3A (Model:217, Pattern:49)
60 | 3E 1E 53 10 00 0A 20 20 20 20 20 20 00 00 00 FC Only when internal pattern is not available
70 | 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 01 70 Color Analyzer Matrix should be calibrated using
CS-1000
EDID Block 1, Bytes 128-255 [80H-FFH]
0 1 2 3 4 5 6 7 8 9 A B C D E F
-----------------------------------------------------------------------------
0 | 02 03 1C F1 48 10 22 20 05 84 03 02 01 26 15 07
10 | 50 09 57 07 67 03 0C 00 20 00 80 1E 02 3A 80 18
20 | 71 38 2D 40 58 2C 04 05 40 84 63 00 00 1E 01 1D
30 | 80 18 71 1C 16 20 58 2C 25 00 40 84 63 00 00 9E
40 | 01 1D 00 72 51 D0 1E 20 6E 28 55 00 40 84 63 00
50 | 00 1E 8C 0A D0 8A 20 E0 2D 10 10 3E 96 00 40 84
60 | 63 00 00 18 00 00 00 00 00 00 00 00 00 00 00 00
70 | 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 86
4.3. Tool Option Input
- Input Model Tool Option according to BOM
Copyright © LG Electronics. Inc. All rights reserved. - 12 - LGE Internal Use Only
Only for training and service purposes
5.1.3. Equipment connection 5.1.5. Adjustment method
5.1.5.1. Auto WB calibration
(1) Set TV in ADJ mode using P-ONLY key (or POWER ON
Color Analyzer
key)
Probe RS-232C (2) Place optical probe on the center of the display
Computer - It need to check probe condition of zero calibration before
RS-232C adjustment.
RS-232C
(3) Connect RS-232C Cable
Pattern Generator (4) Select mode in ADJ Program and begin a adjustment.
Signal Source (5) When WB adjustment is completed with OK message,
If TV internal pattern is used, not needed check adjustment status of pre-set mode (Cool, Medium,
Warm)
(6) Remove probe and RS-232C cable.
W/B Adj. must begin as start command "wb 00 00" , and
finish as end command "wb 00 ff", and Adj. offset if need.
5.1.5.2. Manual adj. method
(1) Set TV in Adj. mode using POWER ON
(2) Zero Calibrate the probe of Color Analyzer, then place it on
5.1.4. Adjustment Command (Protocol) the center of LCD module within 10cm of the surface..
(1) RS-232C Command used during auto-adj (3) Press ADJ key -> EZ adjust using adj. R/C -> 6. White-
Balance then press the cursor to the right (KEY).
RS-232C COMMAND
Explanation (When KEY() is pressed 204 Gray(80IRE) internal
CMD DATA ID pattern will be displayed)
Wb 00 00 Begin White Balance adj. (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.
Wb 00 ff End White Balance adj.
(5) Adj. is performed in COOL, MEDIUM, WARM 3 modes of
(internal pattern disappears )
color temperature.
(2) Adjustment Map
CASE
Command Data Range Default First adjust the coordinate far away from the target value(x, y).
Adj. item (lower case ASCII) (Hex.) (Decimal) (1) x, y > target
CMD1 CMD2 MIN MAX i) Decrease the R, G.
(2) x, y < target
Cool R Gain j g 00 C0 172
i) First decrease the B gain,
G Gain j h 00 C0 172 ii) Decrease the one of the others.
B Gain j i 00 C0 192 (3) x >target , y < target
i) First decrease B, so make y a little more than the target.
R Cut 128
ii) Adjust x value by decreasing the R
G Cut 128 (4) x < target , y > target
B Cut 128 i) First decrease B, so make x a little more than the target.
ii) Adjust x value by decreasing the G
Medium R Gain j a 00 C0 192
G Gain j b 00 C0 192 How to adjust
B Gain j c 00 C0 192 (1) Fix G gain at least 172
Adjust R, B Gain (In Case of Mostly Blue Gain Saturation)
R Cut 128 (2) When R or B Gain > 255, Release Fixed G Gain and
G Cut 128 Readjust
B Cut 128
CASE Medium / Warm
Warm R Gain j d 00 C0 192 First adjust the coordinate far away from the target value(x, y).
G Gain j e 00 C0 192 (1) x, y > target
i) Decrease the R, G.
B Gain j f 00 C0 172
(2) x, y < target
R Cut 128 i) First decrease the B gain,
G Cut 128 ii) Decrease the one of the others.
(3) x > target , y < target
B Cut 128
i) First decrease B, so make y a little more than the target.
ii) Adjust x value by decreasing the R
(4) x < target , y > target
i) First decrease B, so make x a little more than the target.
ii) Adjust x value by decreasing the G
Copyright © LG Electronics. Inc. All rights reserved. - 13 - LGE Internal Use Only
Only for training and service purposes
5.1.6. Reference 5.2. Option selection per country
(White Balance Adj. coordinate and color 5.2.1. Overview
temperature) (1) Tool option selection is only done for models in Non-USA
Luminance: 204 Gray, 80IRE North America due to rating
Normal line (2) Applied model: LA32B Chassis applied to CANADA and
model: (normal line)LN5xxx, LA6xxx, LA7xxx, LA8xxx MEXICO
Cool Medium Warm
H/R Time(Min) x y x x y x 5.2.2. Country Group selection
(1) Press ADJ key on the Adj. R/C, and then select Country
269 273 285 293 313 329 Group Menu
1 0-2 281 290 297 310 322 342 (2) Depending on destination, select US, then on the lower
Country option, select US, CA, MX.
2 3-5 280 288 296 308 321 340
Selection is done using +, - KEY
3 6-9 279 287 295 307 320 339 (3) Using DFT(Auto)
4 10-19 277 284 293 304 318 336 PC (for communication through RS-232C) -> UART Baud
rate : 115200 bps
5 20-35 275 280 291 300 316 332
Command : ah 00 00 DATA(Area Number(hexadecimal))
6 36-49 273 277 289 297 314 329
ITEM