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LCD TV
SERVICE MANUAL
CHASSIS : LD91A
MODEL : 32LH2000 32LH2000-ZA
MODEL : 32LH2010 32LH2010-ZB
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO : MFL50326815 (0912-REV01) Printed in Korea
CONTENTS
CONTENTS .............................................................................................. 2
PRODUCT SAFETY ................................................................................. 3
SPECIFICATION ....................................................................................... 6
ADJUSTMENT INSTRUCTION ................................................................ 9
EXPLODED VIEW .................................................................................. 14
SVC. SHEET ...............................................................................................
Copyright ©2009 LG Electronics. Inc. All right 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 1.5K/10watt resistor in parallel with a 0.15uF 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, 0.5mA.
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 1W), keep the resistor 10mm 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.
0.15uF
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 1M and 5.2M.
*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 ©2009 LG Electronics. Inc. All right reserved. -3- LGE Internal Use Only
Only for training and service purposes
SERVICING PRECAUTIONS
CAUTION: Before servicing receivers covered by this service unit under test.
manual and its supplements and addenda, read and follow the 2. After removing an electrical assembly equipped with ES
SAFETY PRECAUTIONS on page 3 of this publication. devices, place the assembly on a conductive surface such as
NOTE: If unforeseen circumstances create conflict between the aluminum foil, to prevent electrostatic charge buildup or
following servicing precautions and any of the safety precautions on exposure of the assembly.
page 3 of this publication, always follow the safety precautions. 3. Use only a grounded-tip soldering iron to solder or unsolder ES
Remember: Safety First. devices.
4. Use only an anti-static type solder removal device. Some solder
General Servicing Precautions removal devices not classified as "anti-static" can generate
1. Always unplug the receiver AC power cord from the AC power electrical charges sufficient to damage ES devices.
source before; 5. Do not use freon-propelled chemicals. These can generate
a. Removing or reinstalling any component, circuit board electrical charges sufficient to damage ES devices.
module or any other receiver assembly. 6. Do not remove a replacement ES device from its protective
b. Disconnecting or reconnecting any receiver electrical plug or package until immediately before you are ready to install it.
other electrical connection. (Most replacement ES devices are packaged with leads
c. Connecting a test substitute in parallel with an electrolytic electrically shorted together by conductive foam, aluminum foil
capacitor in the receiver. or comparable conductive material).
CAUTION: A wrong part substitution or incorrect polarity 7. Immediately before removing the protective material from the
installation of electrolytic capacitors may result in an leads of a replacement ES device, touch the protective material
explosion hazard. to the chassis or circuit assembly into which the device will be
installed.
2. Test high voltage only by measuring it with an appropriate high CAUTION: Be sure no power is applied to the chassis or circuit,
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
Do not test high voltage by "drawing an arc". replacement ES devices. (Otherwise harmless motion such as
3. Do not spray chemicals on or near this receiver or any of its the brushing together of your clothes fabric or the lifting of your
assemblies. foot from a carpeted floor can generate static electricity
4. Unless specified otherwise in this service manual, clean sufficient 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% (by 1. Use a grounded-tip, low-wattage soldering iron and appropriate
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 1.25cm) 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 easily b. First, hold the soldering iron tip and solder the strand against
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 and component lead and the printed circuit foil, and hold it there
semiconductor "chip" components. The following techniques only until the solder flows onto and around both the
should be used to help reduce the incidence of component component lead and the foil.
damage 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. splashed solder with a small wire-bristle brush.
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
Copyright ©2009 LG Electronics. Inc. All right reserved. -4- LGE Internal Use Only
Only for training and service purposes
IC Remove/Replacement
Some chassis circuit boards have slotted holes (oblong) through Circuit Board Foil Repair
which the IC leads are inserted and then bent flat against the Excessive heat applied to the copper foil of any printed circuit
circuit foil. When holes are the slotted type, the following technique board will weaken the adhesive that bonds the foil to the circuit
should be used to remove and replace the IC. When working with board causing the foil to separate from or "lift-off" the board. The
boards using the familiar round hole, use the standard technique following guidelines and procedures should be followed whenever
as outlined in paragraphs 5 and 6 above. this condition is encountered.
Removal At IC Connections
1. Desolder and straighten each IC lead in one operation by gently To repair a defective copper pattern at IC connections use the
prying up on the lead with the soldering iron tip as the solder following procedure to install a jumper wire on the copper pattern
melts. side of the circuit board. (Use this technique only on IC
2. Draw away the melted solder with an anti-static suction-type connections).
solder removal device (or with solder braid) before removing the
IC. 1. Carefully remove the damaged copper pattern with a sharp
Replacement knife. (Remove only as much copper as absolutely necessary).
1. Carefully insert the replacement IC in the circuit board. 2. carefully scratch away the solder resist and acrylic coating (if
2. Carefully bend each IC lead against the circuit foil pad and used) from the end of the remaining copper pattern.
solder it. 3. Bend a small "U" in one end of a small gauge jumper wire and
3. Clean the soldered areas with a small wire-bristle brush. carefully crimp it around the IC pin. Solder the IC connection.
(It is not necessary to reapply acrylic coating to the areas). 4. Route the jumper wire along the path of the out-away copper
pattern and let it overlap the previously scraped end of the good
"Small-Signal" Discrete Transistor copper pattern. Solder the overlapped area and clip off any
Removal/Replacement excess jumper wire.
1. Remove the defective transistor by clipping its leads as close as
possible to the component body. At Other Connections
2. Bend into a "U" shape the end of each of three leads remaining Use the following technique to repair the defective copper pattern
on the circuit board. at connections other than IC Pins. This technique involves the
3. Bend into a "U" shape the replacement transistor leads. installation of a jumper wire on the component side of the circuit
4. Connect the replacement transistor leads to the corresponding board.
leads extending from the circuit board and crimp the "U" with
long nose pliers to insure metal to metal contact then solder 1. Remove the defective copper pattern with a sharp knife.
each connection. Remove at least 1/4 inch of copper, to ensure that a hazardous
condition will not exist if the jumper wire opens.
Power Output, Transistor Device 2. Trace along the copper pattern from both sides of the pattern
Removal/Replacement break and locate the nearest component that is directly
1. Heat and remove all solder from around the transistor leads. connected to the affected copper pattern.
2. Remove the heat sink mounting screw (if so equipped). 3. Connect insulated 20-gauge jumper wire from the lead of the
3. Carefully remove the transistor from the heat sink of the circuit nearest component on one side of the pattern break to the lead
board. of the nearest component on the other side.
4. Insert new transistor in the circuit board. Carefully crimp and solder the connections.
5. Solder each transistor lead, and clip off excess lead. CAUTION: Be sure the insulated jumper wire is dressed so the
6. Replace heat sink. it does not touch components or sharp edges.
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 ©2009 LG Electronics. Inc. All right 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 TV used LD91A 1) Performance: LGE TV test method followed
chassis. 2) Demanded other specification
- Safety: CE, IEC/EN60065
2. Requirement for Test - EMC:CE, IEC
Each part is tested as below without special appointment.
1) Temperature : 25±5ºC (77±9ºF), CST : 40±5ºC
2) Relative Humidity : 65±10%
3) Power Voltage : Standard input voltage (100-240V@50/60Hz)
* 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. Electrical specification
- Module General Specification
No Item Specification Remark
1 Screen Device 32" wide color display module LCD
2 Aspect Ratio 16:9
3 LCD Module 32" TFT LCD HD LGD
4 Storage Environment Temp. : -20 ~ 60 deg
Humidity : 10 ~ 90 %
5 Input Voltage AC100-240V~, 50/60Hz
6 Power Consumption Typ : 87.8 LCD(Module) + Backlight(Lamp)
7 Module Size 760.0 (H) x 450.0 (V) x 48.0 (D)
8 Pixel Pitch 0.17025(H) x 0.51175(V)
9 Back Light 12 EEFL
10 Display Colors 1.06Billion(FHD LGD),16.7M (others)
11 Coating 3H, AG
Copyright ©2009 LG Electronics. Inc. All right reserved. -6- LGE Internal Use Only
Only for training and service purposes
5. Chroma& Brightness
- Module optical specification
No. Item Specification Min. Typ. Max. Remark
1. Viewing Angle10> Right/Left/Up/Down 178 Degree
2. Luminance Luminance (cd/m2) 400 500
Variation - 1.3 MAX /MIN
3. Contrast Ratio CR 800 1200
4. CIE Color Coordinates White WX 0.279
WY 0.292 Typ
RED Xr 0.639 ±0.03
Yr 0.333
Green Xg 0.292
Yg 0.604
Blue Xb 0.145
Yb 0.064
1) Standard Test Condition (The unit has been `ON')
2) Stable for approximately 30 minutes in a dark environment at 25±2ºC.
3) The values specified are at approximate distance 50Cm from the LCD surface
4) Ta=25±2°C, VLCD=12.0V, fV=60Hz, Dclk=74.25MHz VBR_A=1.65V,ExtVBR_B=100%
6. 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
Copyright ©2009 LG Electronics. Inc. All right reserved. -7- LGE Internal Use Only
Only for training and service purposes
7. 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 60Hz, 852*480 60Hz
-> 640*480 60Hz 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
7. 1280*1024 63.595 60.0 108.875 SXGA FHD model
8. 1920*1080 66.587 59.93 138.625 WUXGA FHD model
8. HDMI Input (PC/DTV)
(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*1024 63.595 60.0 108.875 SXGA HDCP/FHD model
8. 1920*1080 67.5 60.00 138.625 WUXGA HDCP/FHD model
Copyright ©2009 LG Electronics. Inc. All right reserved. -8- LGE Internal Use Only
Only for training and service purposes
ADJUSTMENT INSTRUCTION
1. Application Range 4) Click "Connect" tab. If "Can't" is displayed, check
connection between computer, jig, and set.
This specification sheet is applied to all of the LCD TV with
LD91A chassis. (2) (3)
2. Designation
1) The adjustment is according to the order which is
designated and which must be followed, according to the
plan which can be changed only on agreeing.
2) Power Adjustment: Free Voltage Please Check the Speed :
To use speed between
3) Magnetic Field Condition: Nil. from 200KHz to 400KHz
4) Input signal Unit: Product Specification Standard
5) Reserve after operation: Above 5 Minutes (Heat Run)
Temperature : at 25±5ºC 5) Click "Auto" tab and set as below
Relative humidity : 65±10% 6) Click "Run".
Input voltage : 220V, 60Hz 7) After downloading, check "OK" message.
6) Adjustment equipments: Color Analyzer (CA-210 or CA- (4)
110), DDC Adjustment Jig equipment, SVC remote
filexxx.bin
controller (5)
7) Push The "IN STOP KEY" - For memory initialization.
(7) .OK
Case1 : Software version up
1. After downloading S/W by USB, TV set will reboot (6)
automatically
2. Push "In-stop" key
3. Push "Power on" key
4. Function inspection * USB DOWNLOAD
5. After function inspection, Push "I n-stop" key. 1) Put the USB Stick to the USB socket
Case2 : Function check at the assembly line 2) Automatically detecting update file in USB Stick
1. When TV set is entering on the assembly line, Push - If your downloaded program version in USB Stick is Low,
"In-stop" key at first. it didn't work. But your downloaded version is High, USB
2. Push "Power on" key for turning it on. data is automatically detecting
-> If you push "Power on" key, TV set will recover 3) Show the message "Copying files from memory"
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.
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"
(1)
fi lexxx.bin
Copyright ©2009 LG Electronics. Inc. All right reserved. -9- LGE Internal Use Only
Only for training and service purposes
4) Updating is staring. 3.1. ADC Process
(1) ADC
· Input signal : Component 480i
· Signal equipment displays.
Adjustment pattern
- Component 480I
MODEL: 209 in Pattern Generator(480i Mode)
PATTERN : 65 in Pattern Generator(MSPG-925 SERIES)
· After enter Service Mode by pushing "ADJ" key,
· Enter Internal ADC mode by pushing "G" key at "5. ADC
Calibration"
5) Fishing the version uploading, you have to put USB stick
and "AC Power" off.
6) After putting "AC Power" on and check updated version on
Using `power on' button of the Adjustment R/C ,
your TV.
power on TV.
* If downloading version is more high than your TV have,
* ADC Calibration Protocol (RS232)
TV can lost all channel data. In this case, you have to
channel recover. if all channel data is cleared, you didn't Item CMD1 CMD2 Data0
have a DTV/ATV test on production line. Adjust A A 0 0 When transfer the `Mode In',
`Mode In' Carry the command.
* After downloading, have to adjust Tool Option again. ADC Adjust A D 1 0 Automatically adjustment
1) Push "IN-START" key in service remote controller (The use of a internal pattern)
2) Select "Tool Option 1" and Push "OK" button.
3) Punch in the number. (Each model hax their number) Adjust Sequence
Module Tool option1 Tool option2 Tool option3 Tool option4 · aa 00 00 [Enter Adjust Mode]
· xb 00 40 [Component1 Input (480i)]
LGD V4 16449 1574 1956 3584 · ad 00 10 [Adjust 480i Comp1]
LGD V3.5 16450 1574 1956 3584 · xb 00 60 [RGB Input (1024*768)]
AUO 16464 1574 1444 3584
· ad 00 10 [Adjust 1024*768 RGB]
· aa 00 90 End Adjust mode
* Required equipment : Adjustment R/C.
4) Completed selecting Tool option.
3.2. Function Check
(1) Check display and sound
- Check Input and Signal items. (cf. work instructions)
1) TV
2) AV (SCART1/SCART2/ CVBS)
3) COMPONENT (480i)
4) RGB (PC : 1024 x 768 @ 60hz)
5) HDMI
6) PC Audio In
* Display and Sound check is executed by Remote controller.
Copyright ©2009 LG Electronics. Inc. All right reserved. - 10 - LGE Internal Use Only
Only for training and service purposes
4. Total Assembly line process ** Caution **
Color Temperature : COOL, Medium, Warm.
4.1. Adjustment Preparation One of R Gain/G Gain/ B Gain should be kept on 0xC0, and
· W/B Equipment condition adjust other two lower than C0.
CA210 : CH 9, Test signal : Inner pattern (85IRE) (when R/G/B Gain are all C0, it is the FULL Dynamic Range
· Above 5 minutes H/run in the inner pattern. ("power on" key of Module)
of adjust remote control)
Cool 11,000k ºK X=0.276(±0.002)
* Manual W/B process using adjusts Remote control.
· After enter Service Mode by pushing "ADJ" key,
Y=0.283(±0.002) · Enter White Balance by pushing " G " key at "6. White
Medium 9,300k ºK X=0.285(±0.002) Inner pattern Balance".
Y=0.293(±0.002) (216gray,85IRE)
Warm 6,500k ºK X=0.313(±0.002)
Y=0.329(±0.002)
* Connecting picture of the measuring instrument
(On Automatic control)
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 done all adjustments, Press "In-start" button and
Full White Pattern CA-210
compare Tool option and Area option value with its BOM, if
COLOR it is correctly same then unplug the AC cable. If it is not
ANALYZER
TYPE: CA-210 same, then correct it same with BOM and unplug AC cable.
For correct it to the model's module from factory JIG model.
* Push The "IN STOP KEY" after completing the function
RS-232C Communication
inspection.
* Auto-control interface and directions
4.2. DDC EDID Write (RGB 128Byte )
1) Adjust in the place where the influx of light like floodlight · Connect D-sub Signal Cable to D-sub Jack.
around is blocked. (illumination is less than 10ux). · Write EDID Data to EEPROM(24C02) by using DDC2B
2) Adhere closely the Color Analyzer (CA210) to the module protocol.
less than 10cm distance, keep it with the surface of the · Check whether written EDID data is correct or not.
Module and Color Analyzer's Prove vertically.(80~100°). * For SVC main Ass'y, EDID have to be downloaded to Insert
3) Aging time Process in advance.
- After aging start, keep the power on (no suspension of
power supply) and heat-run over 5minutes. 4.3. DDC EDID Write (HDMI 256Byte)
- Using `no signal' or `full white pattern' or the others, · Connect HDMI Signal Cable to HDMI Jack.
check the back light on. · Write EDID Data to EEPROM(24C02) by using DDC2B
protocol.
· Auto adjustment Map(RS-232C) · Check whether written EDID data is correct or not.
RS-232C COMMAND * For SVC main Ass'y, EDID have to be downloaded to Insert
[CMD ID DATA] Process in advance.
Wb 00 00 White Balance Start
Wb 00 ff White Balance End 4.4. EDID DATA
RS-232C COMMAND MIN CENTER MAX 1) All Data : HEXA Value
2) Changeable Data :
[CMD ID DATA] (DEFAULT)
*: Serial No : Controlled / Data:01
Cool Mid Warm Cool Mid Warm **: Month : Controlled / Data:00
R Gain jg Ja jd 00 172 192 192 255 ***:Year : Controlled
****:Check sum
G Gain jh Jb je 00 172 192 192 255
B Gain ji Jc jf 00 192 192 172 255
R Cut 64 64 64 128
G Cut 64 64 64 128
B Cut 64 64 64 128
Copyright ©2009 LG Electronics. Inc. All right reserved. - 11 - LGE Internal Use Only
Only for training and service purposes
- Auto Download 1) HD RGB EDID data
0 1 2 3 4 5 6 7 8 9 A B C D E F
· After enter Service Mode by pushing "ADJ" key, 00 00 FF FF FF FF FF FF 00 1E 6D a b
· Enter EDID D/L mode. 10 c 01 03 68 73 41 78 0A CF 74 A3 57 4C B0 23
· Enter "START" by pushing "OK" key. 20 09 48 4C A1 08 00 81 C0 61 40 45 40 31 40 01 01
30 01 01 01 01 01 01 66 21 50 B0 51 00 1B 30 40 70
40 36 00 7E 8A 42 00 00 1E 01 1D 00 72 51 D0 1E 20
50 6E 28 55 00 7E 8A 42 00 00 1E 00 00 00 FD 00 3A
60 3E 1F 46 10 00 0A 20 20 20 20 20 20 d
70 d 00 e
80 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
90 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
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
C0 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
D0 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
E0 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
F0 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
2) HD HDMI EDID data
0 1 2 3 4 5 6 7 8 9 A B C D E F
00 00 FF FF FF FF FF FF 00 1E 6D a b
10 c 01 03 80 73 41 78 0A CF 74 A3 57 4C B0 23
20 09 48 4C A1 08 00 81 C0 61 40 45 40 31 40 01 01
30 01 01 01 01 01 01 66 21 50 B0 51 00 1B 30 40 70
40 36 00 7E 8A 42 00 00 1E 01 1D 00 72 51 D0 1E 20
50 6E 28 55 00 7E 8A 42 00 00 1E 00 00 00 FD 00 3A
60 3E 1F 46 10 00 0A 20 20 20 20 20 20 d
70 d 01 e
* Edid data and Model option download (RS232) 80 02 03 20 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 80 18 71 1C 16 20 58 2C 25 00 7E 8A 42 00
Item CMD1 CMD2 Data0
B0 00 9E 01 1D 00 80 51 D0 0C 20 40 80 35 00 7E 8A
C0 42 00 00 1E 8C 0A D0 8A 20 E0 2D 10 10 3E 96 00
Download A A 0 0 When transfer the `Mode In', D0 7E 8A 42 00 00 18 02 3A 80 18 71 38 2D 40 58 2C
E0 45 00 7E 8A 42 00 00 1E 01 1D 80 D0 72 1C 16 20
`Mode In' Carry the command. F0 10 2C 25 80 7E 8A 42 00 00 9E 00 00 00 00 00 D5
Download A E 00 10 Automatically Download
(The use of a internal pattern)
* Detail EDID Options are below
Product ID
- Manual Download Model Name HEX EDID Table DDC Function
* Caution FHD Model 0001 01 00 Analog/Digital
1) Use the proper signal cable for EDID Download
HD Model 0000 00 00 Analog/Digital
- Analog EDID : Pin3 exists
- Digital EDID : Pin3 exists
2) Never connect HDMI & D-sub Cable at the same time.
3) Use the proper cables below for EDID Writing Serial No: Controlled on production line.
4) Download HDMI1, HDMI2, separately because HDMI1 is Month, Year: Controlled on production line:
different from HDMI3 ex) Monthly : `02' -> `02'
For Analog EDID For HDMI EDID Year : `2009' -> `13'
Model Name(Hex):
D-sub to D-sub DVI-D to HDMI or HDMI to HDMI
MODEL MODEL NAME(HEX)
all 00 00 00 FC 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20
Checksum: Changeable by total EDID data.
Vendor Specific(HDMI)
INPUT MODEL NAME(HEX)
Item Condition Data(Hex) HDMI1 67030C001000011D
Manufacturer ID GSM 1E6D HDMI2 67030C002000011D
Version Digital : 1 01 HDMI3 67030C003000011D
Revision Digital : 3 03
Copyright ©2009 LG Electronics. Inc. All right reserved. - 12 - LGE Internal Use Only
Only for training and service purposes
4.5. Outgoing condition Configuration * Manual Download (Model Name and Serial Number)
- When pressing IN-STOP key by SVC remocon, Red LED are If the TV set is downloaded by OTA or Service man, Sometimes
blinked alternatively. And then Automatically turn off. model name or serial number is initialized.(Not always)
(Must not AC power OFF during blinking) There is impossible to download by bar code scan, so It need
Manual download.
1) Press the `instart' key of ADJ remote controller.
4.6. Internal pressure 2) Go to the menu `5.Model Number D/L' like below photo.
Confirm whether is normal or not when between power 3) Input the Factory model name(ex 42LH4000-ZA) or Serial
board's ac block and GND is impacted on 1.5kV(dc) or number like photo.
2.2kV(dc) for one second
5. Model name & Serial number D/L
· press "Power on" key of service remocon.
(Baud rate : 115200 bps)
· Connect RS232 Signal Cable to RS-232 Jack.
· Write Serial number by use RS-232.
· Must check the serial number at the Diagnostics of SET UP
menu. (Refer to below).
4) Check the model name Instart menu -> Factory name
displayed (ex 42LH4000-ZA)
5) Check the Diagnostics (DTV country only) ->s Buyer model
displayed (ex 42LH4000)
5.1. Signal TABLE
CMD LENGTH ADH ADL DATA_1 ... Data_n CS DELAY
CMD : A0h
LENGTH : 85~94h (1~16 bytes)
ADH : EEPROM Sub Address high (00~1F)
ADL : EEPROM Sub Address low (00~FF)
Data : Write data
CS : CMD + LENGTH + ADH + ADL + Data_1 +...+ Data_n
Delay : 20ms
5.2. Command Set
No. Adjust mode CMD(hex) LENGTH(hex) Description
1 EEPROM WRITE A0h 84h+n n-bytes Write (n = 1~16)
* Description
FOS Default write : <7mode data> write
Vtotal, V_Frequency, Sync_Polarity, Htotal, Hstart, Vstart, 0,
Phase
Data write : Model Name and Serial Number write in
EEPROM,.
5.3. 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.
Copyright ©2009 LG Electronics. Inc. All right reserved. - 13 - LGE Internal Use Only
Only for training and service purposes
EXPLODED VIEW
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 X-RADIATION, Shock, Fire, or other Hazards.
Do not modify the original design without permission of manufacturer.
400
520
A10
805
540
A2
530
806
801
803
804
550
LV1
802
200T Only LGD Module
900
200
Only LGD Module
200N
120
500
310
300
510
320
Copyright LG Electronics. Inc. All right reserved. - 14 - LGE Internal Use Only
Only for training and service purposes
IC102
+3.3V HY27US08121B-TPCB +3.3V
NAND FLASH MEMORY VOLTAGE DETECTOR
C105
10uF 6.3V *Mstar reset:Active high reset
NC_1 NC_28
1 48
/PF_CE0
H : Serial Flash NC_2 NC_27
2 47
L : NAND Flash PCM_A[0-7]
/PF_CE1 NC_3