Text preview for : LG 37LV3500-ZA .pdf part of Lg 37LV3500-ZA Manual de servicio
Back to : LG 37LV3500-ZA .pdf | Home
Internal Use Only
North/Latin America http://aic.lgservice.com
Europe/Africa http://eic.lgservice.com
Asia/Oceania http://biz.lgservice.com
LED LCD TV
SERVICE MANUAL
CHASSIS : LD01U
MODEL: 37LV3500 37LV3500-ZA
MODEL: 37LV3550/355A/355C/355N/355U
MODEL: 37LV3550/355A/355C/355N/355U-ZB
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO : MFL62863057 (1103-REV00) Printed in Korea
CONTENTS
CONTENTS .............................................................................................. 2
PRODUCT SAFETY ................................................................................. 3
SPECIFICATION ....................................................................................... 6
ADJUSTMENT INSTRUCTION ................................................................ 9
BLOCK DIAGRAM...................................................................................15
EXPLODED VIEW .................................................................................. 16
SCHEMATIC CIRCUIT DIAGRAM ..............................................................
Copyright ©2011 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, AC Volt-meter
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 Good Earth Ground
shock. such as WATER PIPE,
To Instrument's CONDUIT etc.
0.15 uF
Leakage Current Cold Check(Antenna Cold Check) exposed
With the instrument AC plug removed from AC source, connect an METALLIC PARTS
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 1.5 Kohm/10W
plug prongs tied together and touch other ohm-meter lead in turn to
each exposed metallic parts such as antenna terminals, phone
jacks, etc. When 25A is impressed between Earth and 2nd Ground
If the exposed metallic part has a return path to the chassis, the for 1 second, Resistance must be less than 0.1
measured resistance should be between 1 M and 5.2 M.
*Base on Adjustment standard
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 ©2011 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
NOTE: If unforeseen circumstances create conflict between the exposure of the assembly.
following servicing precautions and any of the safety precautions on 3. Use only a grounded-tip soldering iron to solder or unsolder ES
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 6. Do not remove a replacement ES device from its protective
module 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
other electrical connection. electrically shorted together by conductive foam, aluminum foil
c. Connecting a test substitute in parallel with an electrolytic or 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 to the chassis or circuit assembly into which the device will be
explosion hazard. installed.
CAUTION: Be sure no power is applied to the chassis or circuit,
2. Test high voltage only by measuring it with an appropriate high and observe all other safety precautions.
voltage meter or other voltage measuring device (DVM, 8. Minimize bodily motions when handling unpackaged
FETVOM, etc) equipped with a suitable high voltage probe. replacement ES devices. (Otherwise harmless motion such as
Do not test high voltage by "drawing an arc". the brushing together of your clothes fabric or the lifting of your
3. Do not spray chemicals on or near this receiver or any of its foot from a carpeted floor can generate static electricity
assemblies. sufficient to damage an ES device.)
4. Unless specified otherwise in this service manual, clean
electrical contacts only by applying the following mixture to the General Soldering Guidelines
contacts with a pipe cleaner, cotton-tipped stick or comparable 1. Use a grounded-tip, low-wattage soldering iron and appropriate
non-abrasive applicator; 10 % (by volume) Acetone and 90 % tip size and shape that will maintain tip temperature within the
(by volume) isopropyl alcohol (90 % - 99 % strength) range or 500 °F to 600 °F.
CAUTION: This is a flammable mixture. 2. Use an appropriate gauge of RMA resin-core solder composed
Unless specified otherwise in this service manual, lubrication of of 60 parts tin/40 parts lead.
contacts in not required. 3. Keep the soldering iron tip clean and well tinned.
5. Do not defeat any plug/socket B+ voltage interlocks with which 4. Thoroughly clean the surfaces to be soldered. Use a mall wire-
receivers covered by this service manual might be equipped. bristle (0.5 inch, or 1.25 cm) brush with a metal handle.
6. Do not apply AC power to this instrument and/or any of its Do not use freon-propelled spray-on cleaners.
electrical assemblies unless all solid-state device heat sinks are 5. Use the following unsoldering technique
correctly installed. a. Allow the soldering iron tip to reach normal temperature.
7. Always connect the test receiver ground lead to the receiver (500 °F to 600 °F)
chassis ground before connecting the test receiver positive b. Heat the component lead until the solder melts.
lead. c. Quickly draw the melted solder with an anti-static, suction-
Always remove the test receiver ground lead last. type solder removal device or with solder braid.
8. Use with this receiver only the test fixtures specified in this CAUTION: Work quickly to avoid overheating the circuit
service manual. board printed foil.
CAUTION: Do not connect the test fixture ground strap to any 6. Use the following soldering technique.
heat sink in this receiver. a. Allow the soldering iron tip to reach a normal temperature
(500 °F to 600 °F)
Electrostatically Sensitive (ES) Devices b. First, hold the soldering iron tip and solder the strand against
Some semiconductor (solid-state) devices can be damaged easily the component lead until the solder melts.
by static electricity. Such components commonly are called c. Quickly move the soldering iron tip to the junction of the
Electrostatically Sensitive (ES) Devices. Examples of typical ES component lead and the printed circuit foil, and hold it there
devices are integrated circuits and some field-effect transistors and only until the solder flows onto and around both the
semiconductor "chip" components. The following techniques component lead and the foil.
should be used to help reduce the incidence of component CAUTION: Work quickly to avoid overheating the circuit
damage caused by static by static electricity. board printed foil.
1. Immediately before handling any semiconductor component or d. Closely inspect the solder area and remove any excess or
semiconductor-equipped assembly, drain off any electrostatic splashed solder with a small wire-bristle brush.
charge on your body by touching a known earth ground.
Alternatively, obtain and wear a commercially available
discharging wrist strap device, which should be removed to
prevent potential shock reasons prior to applying power to the
unit under test.
Copyright ©2011 LG Electronics. Inc. All rights reserved. -4- LGE Internal Use Only
Only for training and service purposes
IC Remove/Replacement Circuit Board Foil Repair
Some chassis circuit boards have slotted holes (oblong) through Excessive heat applied to the copper foil of any printed circuit
which the IC leads are inserted and then bent flat against the board will weaken the adhesive that bonds the foil to the circuit
circuit foil. When holes are the slotted type, the following technique board causing the foil to separate from or "lift-off" the board. The
should be used to remove and replace the IC. When working with following guidelines and procedures should be followed whenever
boards using the familiar round hole, use the standard technique this condition is encountered.
as outlined in paragraphs 5 and 6 above.
At IC Connections
Removal To repair a defective copper pattern at IC connections use the
1. Desolder and straighten each IC lead in one operation by gently following procedure to install a jumper wire on the copper pattern
prying up on the lead with the soldering iron tip as the solder side of the circuit board. (Use this technique only on IC
melts. connections).
2. Draw away the melted solder with an anti-static suction-type
solder removal device (or with solder braid) before removing the 1. Carefully remove the damaged copper pattern with a sharp
IC. knife. (Remove only as much copper as absolutely necessary).
Replacement 2. carefully scratch away the solder resist and acrylic coating (if
1. Carefully insert the replacement IC in the circuit board. used) from the end of the remaining copper pattern.
2. Carefully bend each IC lead against the circuit foil pad and 3. Bend a small "U" in one end of a small gauge jumper wire and
solder it. carefully crimp it around the IC pin. Solder the IC connection.
3. Clean the soldered areas with a small wire-bristle brush. 4. Route the jumper wire along the path of the out-away copper
(It is not necessary to reapply acrylic coating to the areas). pattern and let it overlap the previously scraped end of the good
copper pattern. Solder the overlapped area and clip off any
"Small-Signal" Discrete Transistor excess jumper wire.
Removal/Replacement
1. Remove the defective transistor by clipping its leads as close as At Other Connections
possible to the component body. Use the following technique to repair the defective copper pattern
2. Bend into a "U" shape the end of each of three leads remaining at connections other than IC Pins. This technique involves the
on the circuit board. installation of a jumper wire on the component side of the circuit
3. Bend into a "U" shape the replacement transistor leads. board.
4. Connect the replacement transistor leads to the corresponding
leads extending from the circuit board and crimp the "U" with 1. Remove the defective copper pattern with a sharp knife.
long nose pliers to insure metal to metal contact then solder Remove at least 1/4 inch of copper, to ensure that a hazardous
each connection. condition will not exist if the jumper wire opens.
2. Trace along the copper pattern from both sides of the pattern
Power Output, Transistor Device break and locate the nearest component that is directly
Removal/Replacement connected to the affected copper pattern.
1. Heat and remove all solder from around the transistor leads. 3. Connect insulated 20-gauge jumper wire from the lead of the
2. Remove the heat sink mounting screw (if so equipped). nearest component on one side of the pattern break to the lead
3. Carefully remove the transistor from the heat sink of the circuit of the nearest component on the other side.
board. Carefully crimp and solder the connections.
4. Insert new transistor in the circuit board. CAUTION: Be sure the insulated jumper wire is dressed so the
5. Solder each transistor lead, and clip off excess lead. it does not touch components or sharp edges.
6. Replace heat sink.
Diode Removal/Replacement
1. Remove defective diode by clipping its leads as close as
possible to diode body.
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.
3. Solder the connections.
CAUTION: Maintain original spacing between the replaced
component and adjacent components and the circuit board to
prevent excessive component temperatures.
Copyright ©2011 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 specification is applied to the LCD/ LED LCD TV used 1) Performance: LGE TV test method followed
LD01U chassis. 2) Demanded other specification
- Safety: CE, IEC specification
2. Requirement for Test - EMC:CE, IEC
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.
4. Model General Specification
No. Item Specification Remarks
1 Market EU(PAL Market-36Countries) DTV-T/C & Analog
(Germany, Netherlands, Switzerland, Hungary, Austria, Slovenia, Sweden, Denmark,
Finland, Norway, Bulgaria
DTV-T & Analog
UK, France, Spain, Italy, Belgium, Russia, Luxemburg, Greece, Czech, Croatia,Turkey,
Morocco, Ireland, Latvia, Estonia, Lithuania, Poland, Portugal, Romania, Ukraine
Analog Only
Kazakhstan, Albania, Bosnia, Serbia, Slovakia
2 Broadcasting system 1) PAL-BG
2) PAL-DK
3) PAL-I/I'
4) SECAM L/L'
5) DVB-T/C/S (ID TV)
3 Receiving system Analog : Upper Heterodyne
Digital : COFDM, QAM
4 Scart Jack (1EA) PAL, SECAM Scart Jack is Full scart and support RF-OUT(analog & DTV)
5 Video Input RCA(1EA) PAL, SECAM, NTSC 4System : PAL, SECAM, NTSC, PAL60
6 Component Input(1EA) Y/Cb/Cr, Y/Pb/Pr
7 RGB Input RGB-PC Analog(D-SUB 15PIN)
8 HDMI Input (3EA) HDMI1-DTV (DVI) PC(HDMI version 1.3)
HDMI2-DTV Support HDCP
HDMI3-DTV
9 Audio Input (3EA) RGB/DVI Audio, Component, AV L/R Input
10 SDPIF out (1EA) SPDIF out
11 Earphone out (1EA) Antenna, AV1, AV2, AV3, Component,
RGB, HDMI1, HDMI2, HDMI3, HDMI4
12 USB (1EA) For Service (download)
DivX
13 DVB DVB-T CI : UK, Finland, Denmark, Norway, Sweden, Russia, Spain, Ireland, Luxemburg, Belgium, Netherland
CI+ : France(Canal+), Italy(DGTVi)
DVB-C CI : Switzerland, Austria, Slovenia, Hungary, Bulgaria
CI+ : Switzerland(UPC,Cablecom), Netherland(Ziggo), Germany(KDG,CWB), Finland(labwise)
DVB-S CI+ : Germany(Astra HD+)
Copyright ©2011 LG Electronics. Inc. All rights reserved. -6- LGE Internal Use Only
Only for training and service purposes
5. Component Video Input (Y, CB/PB, CR/PR)
Specification
No. 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
6. RGB (PC)
Specification
No. Proposed Remark
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. 1280*768 47.78 59.87 79.5 WXGA
6. 1360*768 47.72 59.8 84.75 WXGA FHD Model
7. 1366*768 47.56 59.6 84.75 WXGA WXGA Model
8. 1200*1024 63.901 60.02 100.075 SXGA FHD model
9. 1280*720 45 60 74.25 720p DTV Standard
10. 1920*1080 67.5 60 148.5 WUXGA FHD model
Copyright ©2011 LG Electronics. Inc. All rights reserved. -7- LGE Internal Use Only
Only for training and service purposes
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
(2) PC Mode
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. 1280*768 47.78 59.87 79.5 WXGA HDCP
6. 1360*768 47.72 59.8 84.75 WXGA HDCP
7. 1280*720 45 60 74.25 HDCP
8. 1280*1024 63.981 60.02 108.875 SXGA HDCP/FHD model
9. 1920*1080 67.5 60 148.5 WUXGA HDCP/FHD model
Copyright ©2011 LG Electronics. Inc. All rights reserved. -8- LGE Internal Use Only
Only for training and service purposes
ADJUSTMENT INSTRUCTION
1. Application Range (2) (3)
This specification sheet is applied to all of the LCD/ LED LCD
TV with LD01U chassis.
2. Designation
1) The adjustment is according to the order which is
designated and which must be followed, according to the Please Check the Speed :
To use speed between
plan which can be changed only on agreeing. from 200KHz to 400KHz
2) Power Adjustment: Free Voltage
3) Magnetic Field Condition: Nil.
5) Click "Auto" tab and set as below.
4) Input signal Unit: Product Specification Standard
6) Click "Run".
5) Reserve after operation: Above 5 Minutes (Heat Run)
7) After downloading, check "OK" message.
Temperature : at 25 ºC ± 5 ºC
Relative humidity : 65 % ± 10 % (4)
Input voltage : 220 V, 60 Hz
filexxx.bin
6) Adjustment equipments: Color Analyzer(CA-210 or CA-110), (5)
DDC Adjustment Jig equipment, Service remote control.
(7) ..........OK
7) Push the "IN STOP" key - For memory initialization.
Case1 : Software version up (6)
1. After downloading S/W by USB, TV set will reboot
automatically
2. Push "In-stop" key
3. Push "Power on" key * USB DOWNLOAD
4. Function inspection 1) Put the USB Stick to the USB socket.
5. After function inspection, Push "In-stop" key. 2) Automatically detecting update file in USB Stick.
Case2 : Function check at the assembly line - If your downloaded program version in USB Stick is Low,
1. When TV set is entering on the assembly line, Push it didn't work. But your downloaded version is High, USB
"In-stop" key at first. data is automatically detecting.
2. Push "Power on" key for turning it on. 3) Show the message "Copying files from memory".
-> If you push "Power on" key, TV set will recover
channel information by itself.
3. After function inspection, Push "In-stop" key.
3. Main PCB check process
* APC - After Manual-Insult, executing APC
* Boot file Download
1) Execute ISP program "Mstar ISP Utility" and then click
"Config" tab.
(1)
fi lexxx.bin
2) Set as below, and then click "Auto Detect" and check "OK"
message.
If "Error" is displayed, check connection between computer,
jig, and set.
3) Click "Read" tab, and then load download file(XXXX.bin) by
clicking "Read"
4) Click "Connect" tab. If "Can't" is displayed, check connection
between computer, jig, and set.
Copyright ©2011 LG Electronics. Inc. All rights reserved. -9- LGE Internal Use Only
Only for training and service purposes
4) Updating is starting. 3.1. ADC Process
(1) ADC
- Enter Service Mode by pushing "ADJ" key,
- Enter Internal ADC mode by pushing "G" key at "5. ADC
Calibration"
EZ ADJUT
0. Tool Option1 ADC Calibration
1. Tool Option2
2. Tool Option3
3. Tool Option4 ADC Comp 480i NG
4. Country Group
5. ADC Calibration ADC Comp 1080p NG
6. White Balance
7. Test Pattern ADC RGB NG
8. EDID D/L
9. Sub B/C
10. V-Com Start Reset
11. P-Gamma
Using `power on' key of the Adjustment remote
control, power on TV.
* ADC Calibration Protocol (RS232)
Adjust Sequence
· aa 00 00 [Enter Adjust Mode]
Item CMD1 CMD2 Data0
Adjust `Mode In' A A 0 0 When transfer the `Mode In',
Carry the command.
ADC Adjust A D 1 0 Automatically adjustment
(The use of a internal pattern)
· xb 00 40 [Component1 Input (480i)]
· ad 00 10 [Adjust 480i Comp1]
· xb 00 60 [RGB Input (1024*768)]
· ad 00 10 [Adjust 1024*768 RGB]
5) Uploading completed, the TV will restart automatically.
· aa 00 90 End Adjust mode
6) If your TV is turned on, check your updated version and
* Required equipment : Adjustment R/C.
Tool option.(explain the Tool option, next stage)
* If downloading version is more high than your TV have,
TV can lost all channel data. In this case, you have to 3.2. Function Check
channel recover. if all channel data is cleared, you didn't * Check display and sound.
have a DTV/ATV test on production line. - Check Input and Signal items. (cf. work instructions)
1) TV
* After downloading, have to adjust Tool Option again. 2) AV (SCART1/SCART2/CVBS)
1) Push "IN-START" key in service remote control. 3) COMPONENT (480i)
2) Select "Tool Option 1" and push "OK" key. 4) RGB (PC : 1024 x 768 @ 60 Hz)
3) Punch in the number. (Each model has their number) 5) HDMI
6) PC Audio In
Module Tool option1 Tool option2 Tool option3 Tool option4 Tool option5
* Display and Sound check is executed by Remote control.
AUO 22376 18986 55337 26904 352
LGD 22368 18986 55337 26904 288
4) Completed selecting Tool option.
Copyright ©2011 LG Electronics. Inc. All rights reserved. - 10 - LGE Internal Use Only
Only for training and service purposes
4. Total Assembly line process · Auto adjustment Map(RS-232C)
RS-232C COMMAND
4.1. Adjustment Preparation [CMD ID DATA]
· W/B Equipment condition Wb 00 00 White Balance Start
CA210 Wb 00 ff White Balance End
: CCFL/EEFL -> CH9, Test signal: Inner pattern(80IRE) RS-232C COMMAND MIN CENTER MAX
LED -> CH14, Test signal: Inner pattern(80IRE)
· Above 5 minutes H/run in the inner pattern. ("power on" key [CMD ID DATA] (DEFAULT)
of adjust remote control) Cool Mid Warm Cool Mid Warm
Cool 13,000 K X=0.269(±0.002) R Gain jg Ja jd 00 172 192 192 192
Y=0.273(±0.002) G Gain jh Jb je 00 172 192 192 192
Medium 9,300 K X=0.285(±0.002) Inner pattern B Gain ji Jc jf 00 192 192 172 192
Y=0.293(±0.002) (204 gray, 80 IRE) R Cut 64 64 64 128
Warm 6,500 K X=0.313(±0.002) G Cut 64 64 64 128
Y=0.329(±0.002) B Cut 64 64 64 128
· Edge LED W/B Table is process of time (Only LGD Module) ** Caution **
CA210: CH14, Test signal : Inner pattern(80IRE) Color Temperature : COOL, Medium, Warm.
Aging Time Cool Medium Warm
One of R Gain/G Gain/ B Gain should be kept on 0xC0, and
adjust other two lower than C0.
GP2R (Min.) X Y X Y X Y
(when R/G/B Gain are all C0, it is the FULL Dynamic Range
269 273 285 293 313 329 of Module)
1 0-2 279 288 295 308 319 338
2 3-5 278 286 294 306 318 336 * Manual W/B process using adjusts Remote control.
3 6-9 277 285 293 305 317 335 · After enter Service Mode by pushing "ADJ" key,
4 10-19 276 283 292 303 316 333 · Enter White Balance by pushing " G " key at "6. White
5 20-35 274 280 290 300 314 330
Balance".
6 36-49 272 277 288 297 312 327 EZ ADJUST
0. Tool Option1
7 50-79 271 275 287 295 311 325 1. Tool Option2
8 80-149 270 274 286 294 310 324 2. Tool Option3 White Balance
3. Tool Option4
Color Temp. Cool
4. Country Group
9 Over 150 269 273 285 293 309 323 5. ADC Calibration R-Gain 172
6. White Balance G-Gain 172
7. Test Pattern B-Gain 192
8. EDID D/L R-Cut 64
* Connecting picture of the measuring instrument 9. Sub B/C G-Cut
B-Cut
64
10. V-Com 64
(On Automatic control) 11. P-Gamma Test-Pattern. ON
Reset To set
Inside PATTERN is used when W/B is controlled. Connect to
auto controller or push Adjustment R/C POWER ON ->
Enter the mode of White-Balance, the pattern will come out. * After you finished all adjustments, Press "In-start" key and
compare Tool option and Area option value with its BOM, if
it is correctly same then unplug the AC cable. If it is not
same, then correct it same with BOM and unplug AC cable.
Full White Pattern CA-210
For correct it to the model's module from factory Jig model.
COLOR * Push the "IN STOP" key after completing the function
ANALYZER
TYPE: CA-210 inspection. And Mechanical Power Switch must be set "ON".
4.2. DDC EDID Write (RGB 128Byte )
RS-232C Communication · Connect D-sub Signal Cable to D-sub Jack.
· Write EDID Data to EEPROM(24C02) by using DDC2B
* Auto-control interface and directions protocol.
1) Adjust in the place where the influx of light like floodlight · Check whether written EDID data is correct or not.
around is blocked. (illumination is less than 10 lux). * For Service main Assembly, EDID have to be downloaded to
2) Adhere closely the Color Analyzer (CA210) to the module Insert Process in advance.
less than 10 cm distance, keep it with the surface of the
Module and Color Analyzer's prove vertically.(80° ~ 100°). 4.3. DDC EDID Write (HDMI 256Byte)
3) Aging time · Connect HDMI Signal Cable to HDMI Jack.
- After aging start, keep the power on (no suspension of · Write EDID Data to EEPROM(24C02) by using DDC2B
power supply) and heat-run over 5 minutes. protocol.
- Using `no signal' or `full white pattern' or the others, · Check whether written EDID data is correct or not.
check the back light on. * For Service main Assembly, EDID have to be downloaded to
Insert Process in advance.
Copyright ©2011 LG Electronics. Inc. All rights reserved. - 11 - LGE Internal Use Only
Only for training and service purposes
4.4. EDID DATA 1) FHD RGB EDID data
1) All Data : HEXA Value 0 1 2 3 4 5 6 7 8 9 A B C D E F
2) Changeable Data : 00 00 FF FF FF FF FF FF 00 1E 6D a b
*: Serial No : Controlled / Data:01 10 c 01 03 68 10 09 78 0A EE 91 A3 54 4C 99 26
**: Month : Controlled / Data:00 20 0F 50 54 A1 08 00 81 80 61 40 45 40 31 40 01 01
***:Year : Controlled 30 01 01 01 01 01 01 02 3A 80 18 71 38 2D 40 58 2C
****:Check sum 40 45 00 A0 5A 00 00 00 1E 01 1D 00 72 51 D0 1E 20
50 6E 28 55 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 d
- Auto Download 70 d 00 e
· After enter Service Mode by pushing "ADJ" key, 80 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
· Enter EDID D/L mode. 90 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
· Enter "START" by pushing "OK" key. A0 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
B0 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
EZ ADJUT EDID D/L
C0 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
0. Tool Option1 HDMI1 NG D0 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
1. Tool Option2 HDMI2 NG E0 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
2. Tool Option3 HDMI3 NG
F0 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
3. Tool Option4 RGB NG
4. Country Group
5. ADC Calibration Start Reset 2) FHD HDMI EDID data
6. White Balance
7. Test Pattern 0 1 2 3 4 5 6 7 8 9 A B C D E F
8. EDID D/L EDID D/L
00 FF FF FF FF FF FF 00 1E 6D a b
9. Sub B/C
HDMI1 OK 10 c 01 03 80 10 09 78 0A EE 91 A3 54 4C 99 26
10. V-Com
11. P-Gamma HDMI2 OK 20 0F 50 54 A1 08 00 71 4F 81 80 01 01 01 01 01 01
HDMI3 OK
30 01 01 01 01 01 01 02 3A 80 18 71 38 2D 40 58 2C
RGB OK
40 45 00 A0 5A 00 00 00 1E 1B 21 50 A0 51 00 1E 30
Start Reset 50 48 88 35 00 A0 5A 00 00 00 1C 00 00 00 FD 00 3A
60 3E 1E 53 10 00 0A 20 20 20 20 20 20 d
* Caution : Never connect HDMI & D-sub Cable when EDID 70 d 01 e
download 80 02 03 26 F1 4E 10 1F 84 13 05 14 03 02 12 20 21
90 22 15 01 26 15 07 50 09 57 07 f
A0 f E3 05 03 01 01 1D 80 18 71 1C 16 20 58 2C
* Edid data and Model option download (RS232) B0 25 00 A0 5A 00 00 00 9E 01 1D 00 72 51 D0 1E 20
C0 6E 28 55 00 A0 5A 00 00 00 1E 02 3A 80 18 71 38
Item CMD1 CMD2 Data0
D0 2D 40 58 2C 45 00 A0 5A 00 00 00 1E 01 1D 00 BC
Download A A 0 0 When transfer the `Mode In', E0 52 D0 1E 20 B8 28 55 40 A0 5A 00 00 00 1E 00 00
`Mode In' Carry the command. F0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 e
Download A E 00 10 Automatically Download
* Detail EDID Options are below
(The use of a internal pattern) Product ID
Model Name HEX EDID Table DDC Function
- Manual Download FHD Model 0001 01 00 Analog/Digital
* Caution
1) Use the proper signal cable for EDID Download. Serial No: Controlled on production line.
- Analog EDID : Pin3 exists
Month, Year: Week : `01' -> `01'
- Digital EDID : Pin3 exists
2) Never connect HDMI & D-sub Cable at the same time. Year : `2011' -> `15' fix
3) Use the proper cables below for EDID Writing. Model Name(Hex):
4) Download HDMI1, HDMI2, separately because HDMI1 is MODEL MODEL NAME(HEX)
different from HDMI2.
all 00 00 00 FC 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20
For Analog EDID For HDMI EDID
D-sub to D-sub DVI-D to HDMI or HDMI to HDMI Checksum: Changeable by total EDID data.
Vendor Specific(HDMI)
INPUT MODEL NAME(HEX)
HDMI1 67030C001000B82D
HDMI2 67030C002000B82D
HDMI3 67030C003000B82D
Item Condition Data(Hex) HDMI4 67030C004000B82D
Manufacturer ID GSM 1E6D
Version Digital : 1 01
Revision Digital : 3 03
Copyright ©2011 LG Electronics. Inc. All rights reserved. - 12 - LGE Internal Use Only
Only for training and service purposes
4.5. V-COM Adjust(Only LGD(M+S) Module) 5. Model name & Serial number D/L
- Why need Vcom adjustment? · Press "Power on" key of service remote control.
A The Vcom (Common Voltage) is a Reference Voltage of (Baud rate : 115200 bps)
Liquid Crystal Driving. · Connect RS232 Signal Cable to RS-232 Jack.
-> Liquid Crystal need for Polarity Change with every frame. · Write Serial number by use RS-232.
Circuit Block · Must check the serial number at the Diagnostics of SET UP
Data (R ,G,B ) & Ga mma menu. (Refer to below).
Cont rol si gnal Re f e r e nce V o ltage
Data (R ,G,B ) & C ont ro l s ignal
Ti m i n g
S Co nt r o ll e r
Gamm a Reference
In t e r f a ce
Cont rol si gnal Volta ge
Y Da t a I n p u t
So urce D r i v e I C
S
T Column Line
Pane l
Gat e Driv e IC
E Power r I n p u t
Po w e Input Po w e r V COM
Blo ck
M CLC CST
Liquid
Crys tal
V COM Row Li ne TFT
V COM
5.1. Signal TABLE
CMD LENGTH ADH ADL DATA_1 ... Data_n CS DELAY
- Adjust sequence CMD : A0h
· Press the PIP key of th ADJ remote control.(This PIP key is LENGTH : 85~94h (1~16 bytes)
hot key to enter the VCOM adjusting mode) ADH : EEPROM Sub Address high (00~1F)
(Or After enter Service Mode by pushing "ADJ" key, then ADL : EEPROM Sub Address low (00~FF)
Data : Write data
Enter V-Com Adjust mode by pushing "G" key at "10. V-
CS : CMD + LENGTH + ADH + ADL + Data_1 +...+ Data_n
Com".)