Text preview for : 47LG70-UG.pdf part of LG 47LG70 Service Manual for LG 47LG70 47LG70-UG
Chassis LA86D
Back to : 47LG70.part1.rar | Home
Internal Use Only
North/Latin America http://aic.lgservice.com
Europe/Africa http://eic.lgservice.com
Asia/Oceania http://biz.lgservice.com
LCD TV
SERVICE MANUAL
CHASSIS : LA86D
MODEL : 47LG70 47LG70-UG
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
CONTENTS
CONTENTS .............................................................................................. 2
PRODUCT SAFETY ..................................................................................3
SPECIFICATION ........................................................................................6
ADJUSTMENT INSTRUCTION................................................................11
TROUBLE SHOOTING ............................................................................18
BLOCK DIAGRAM...................................................................................32
EXPLODED VIEW .................................................................................. 33
SVC. SHEET ...............................................................................................
Copyright C 2008 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.
AC Volt-meter
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 Good Earth Ground
shock. such as WATER PIPE,
To Instrument's CONDUIT etc.
0.15uF
Leakage Current Cold Check(Antenna Cold Check) exposed
METALLIC PARTS
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 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.
If the exposed metallic part has a return path to the chassis, the
measured resistance should be between 1M and 5.2M.
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 C 2008 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
CAUTION: Do not connect the test fixture ground strap to any circuitboard 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 C 2008 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 C 2008 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 spec sheet is applied all of the 47", 52" LCD TV with LA86D
chassis. 3.1 Performance : LGE TV test method followed.
3.2 Demanded other specification
2. Specification Safety : UL, CSA, IEC specification
Each part is tested as below without special appointment EMC: FCC, ICES, IEC specification
2.1 Temperature : 25±5°C(77±9°F), CST : 40±5°C
2.2 Relative Humidity : 65±10%
2.3 Power Voltage : Standard input voltage
(100~240V@ 50/60Hz)
· Standard Voltage of each products is marked by models
2.4 Specification and performance of each parts are followed
each drawing and specification by part number in
accordance with BOM .
2.5 The receiver must be operated for about 20 minutes prior
to the adjustment.
4. General Specification(TV)
No Item Specification Remark
1. Receiving System 1) ATSC / NTSC-M
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 1) AC 100 ~ 240V 50/60Hz Mark : 110V, 60Hz
4. Market NORTH AMERICA
5. Screen Size 42 inch Wide(1920 108 0) FHD 42LG70-UG
47 inch Wide(1920 108 0) FHD 47LG70-UG
52 inch Wide(1920 108 0) FHD 52LG70-UG
6. Aspect Ratio 16:9
7. Tuning System FS
8. Module LC470WUD-SAA1 LPL 47LG70-UG
LC470WUL-SAA1 LPL 47LG90-UG
LC520WU2-SLA2 LPL(LED) 52LG70-UG (Multi)_PV1st
LK520D3LZ1X LPL 52LG70-UG (Multi)
1) Temp : 0 ~ 40 deg
2) Humidity : ~ 80 %
1) Temp : -20 ~ 60 deg
2) Humidity : ~ 85 %
9. Operating Environment
10. Storage Environment
Copyright C 2008 LG Electronics. Inc. All right reserved. -6- LGE Internal Use Only
Only for training and service purposes
5. Chrominance & Luminance Specification
No Item Min Typ Max Unit Remark
1. White peak brightness 400 500 cd/m2 47LG70-UG
(Center 1-point / Full White Pattern) 360 450 cd/m2 52LG70-UG
2. White average brightness cd/m2 N/A
3. Brightness uniformity 80 % Full white
4. Color RED X Typ. 0.640 Typ. 47/52LG70-UG
5. coordinate Y -0.03 0.330 +0.03 47/52LG70-UG
6. GREEN X 0.280 47/52LG70-UG
7. Y 0.600 47/52LG70-UG
8. BLUE X 0.150 47/52LG70-UG
9. Y 0.060 47/52LG70-UG
10. WHITE X 0.272 47/52LG70-UG
11. Y 0.277 47/52LG70-UG
12. Color coordinate uniformity N/A
13. Contrast ratio 900:1 1,300 47LG70-UG
1,200:1 1,800:1 52LG70-UG
14. Dynamic Contrast ratio 8000:1 10000:1
15. Color Cool 10000 11000 12000
Temperature Standard 8300 9300 10300 HDMI Input
Warm 5500 6500 7500 85% Full white pattern
Backlight : 100, contrast : 100,
bright : 50, color : 50
Fresh_contrast/color:off, gamma :
medium
16 Color Distortion, DG 10.0 %
17 Color Distortion, DP 10.0 deg
18 Color S/N, AM/FM 43.0 dB
19 Color Killer Sensitivity -80 dBm
Copyright C 2008 LG Electronics. Inc. All right reserved. -7- LGE Internal Use Only
Only for training and service purposes
Peak & average Brightness & Contrast measure standard specification
- White Peak brightness measure specification
1) In non-impressed condition, measure peak brightness displayable as much as possible LCD module.
2) Measuring instrument: CA-210 or a sort of Color Analyzer.
3) Pattern Generator : VG-828 or a sort of digital pattern generator (displayable Full White & 1/25 White Window pattern)
4) Measure condition
- Test pattern: in center, 1/5(H) * 1/5(V) of Window Pattern (white pattern in non-impressed condition)
- SET condition : Contrast & Brightness Level 100%
- Environment condition : Dark room in the non outside light
- Video menu option condition
Signal Picture Mode Fresh Contrast Fresh Color Black Level
RF NTSC-M Vivid Off Off Low
AV NTSC-J Vivid Off Off High
Component 720P Vivid Off Off High
RGB 1024x768 Vivid Off NA NA
HDMI DTV 720P Vivid Off Off Low
5) Measurement
- Do heat-run LCD module at 30minutes in normal temperature (25°C) by using full white pattern of 15% signal level(38 gray
level).
- Impress test pattern signal in 1/5(H) * 1/5(V) White Window of 100%(255Gray Level)
- measure 3 times brightness of central white window, and mark peak brightness in max brightness degree
- measure the same condition in video signal /RGB signal.
Average Brightness measure specification
1) Impress 100%(255Gray Level) full white pattern at the same peak brightness measurement.
2) Measure average brightness in 9 points.
1 4 7
2 5 8
3 6 9
Contrast ratio measure specification
1) Test display signal : 30*30 dots White Window signal & all Black Raster signal
2) Dark room measure condition : : Using touch type Color analyzer CA-100 Dark room in the non outside light
3) Bright room measure condition : In bright room of 150Lx illumination in the panel surface, locate a source of light on the above
45° of the panel surface.
4) Measure method
- In standard test condition, impress 30*30 dots White Window Pattern signal.
Measure center peak brightness degree Lw of white window
- Impress black Raster signal as contrast ratio measurement signal.
Measure black brightness degree Lb of PDP central
Calculate the following numerical formula.
Contrast ratio = Lw / Lb
* If it does not use Prior measurement, use generally simple test measurement.
The Correct measure specification is followed by IEC61988-2/CD, JAPAN EIAJ-2710
Copyright C 2008 LG Electronics. Inc. All right reserved. -8- LGE Internal Use Only
Only for training and service purposes
6. Component Video Input (Y, PB, PR)
No Resolution H-freq(kHz) V-freq.(kHz) Pixel clock Proposed
1. 720*480 15.73 60 13.5135 SDTV ,DVD 480I
2. 720*480 15.73 59.94 13.5 SDTV ,DVD 480I
3. 720*480 31.47 60 27.027 SDTV 480P
4. 720*480 31.47 59.94 27.0 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 67.500 60 148.50 HDTV 1080P
10. 1920*1080 67.432 59.939 148.352 HDTV 1080P
11. 1920*1080 27.000 24.000 74.25 HDTV 1080P
12. 1920*1080 26.97 23.94 74.176 HDTV 1080P
13. 1920*1080 33.75 30.000 74.25 HDTV 1080P
14. 1920*1080 33.71 29.97 74.176 HDTV 1080P
7. RGB PC
No Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) Proposed
PC DDC
1. 640*350 31.468 70.09 25.17 EGA X
2. 720*400 31.469 70.08 28.32 DOS O
3. 640*480 31.469 59.94 25.17 VESA(VGA) O
4. 640*480 37.861 72.80 31.50 VESA(VGA) O
5. 640*480 37.500 75.00 31.50 VESA(VGA) O
6. 800*600 35.156 56.25 36.00 VESA(SVGA) O
7. 800*600 37.879 60.31 40.00 VESA(SVGA) O
8. 800*600 48.077 72.18 50.00 VESA(SVGA) O
9. 800*600 46.875 75.00 49.50 VESA(SVGA) O
10. 1024*768 48.363 60.00 65.00 VESA(XGA) O
11. 1024*768 56.476 70.06 75.00 VESA(XGA) O
12. 1024*768 60.023 75.02 78.75 VESA(XGA) O
13. 1280*768 47.776 59.870 79.5 CVT(WXGA) O
14. 1280*768 60.289 74.893 102.25 CVT(WXGA) O
15. 1360*768 47.712 60.015 85.50 VESA (WXGA) O
16. 1280*1024 63.981 60.020 108.00 VESA (SXGA) O
17. 1280*1024 79.976 75.025 135 VESA (SXGA) O
18. 1600*1200 75.00 60.00 162 VESA (UXGA) O
19 1920*1080 66.587 59.934 148.5 HDTV 1080P O
Copyright C 2008 LG Electronics. Inc. All right reserved. -9- LGE Internal Use Only
Only for training and service purposes
8. HDMI Input (PC/DTV)
No Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) Proposed
PC DDC
1 640*350 31.468 70.09 25.17 EGA X
2 720*400 31.469 70.08 28.32 DOS O
3 640*480 31.469 59.94 25.17 VESA(VGA) O
4 640*480 37.861 72.80 31.50 VESA(VGA) O
5 640*480 37.500 75.00 31.50 VESA(VGA) O
6 800*600 35.156 56.25 36.00 VESA(SVGA) O
7 800*600 37.879 60.31 40.00 VESA(SVGA) O
8 800*600 48.077 72.18 50.00 VESA(SVGA) O
9 800*600 46.875 75.00 49.50 VESA(SVGA) O
10 1024*768 48.363 60.00 65.00 VESA(XGA) O
11 1024*768 56.476 70.06 75.00 VESA(XGA) O
12 1024*768 60.023 75.02 78.75 VESA(XGA) O
13 1280*768 47.776 59.870 79.5 CVT(WXGA)
14 1360*768 47.712 60.015 85.50 VESA (WXGA) O
15 1280*1024 63.981 60.020 108.00 VESA (SXGA) O
16 1280*1024 79.976 75.025 135 VESA (SXGA) O
17 1600*1200 75.00 60.00 162 VESA (UXGA) O
18 1920*1080 67.5 60 148.5 HDTV 1080P O
DTV
1 720*480 31.47 60 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 67.500 60 148.50 HDTV 1080P
8 1920*1080 67.432 59.939 148.352 HDTV 1080P
9 1920*1080 27.000 24.000 74.25 HDTV 1080P
10 1920*1080 26.97 23.94 74.176 HDTV 1080P
11 1920*1080 33.75 30.000 74.25 HDTV 1080P
12 1920*1080 33.71 29.97 74.176 HDTV 1080P
Copyright C 2008 LG Electronics. Inc. All right reserved. - 10 - LGE Internal Use Only
Only for training and service purposes
ADJUSTMENT INSTRUCTION
1. Application Range 3. Adjust ADC
These instructions are applied to all of the LCD TV, LA86D 3.1 Overview
Chassis. The ADC adjustment automatically sets the optimum black
level and the gain and compensates the RGB deviation at the
Analog-to-Digital converter
2. Notice 3.2 Devices and conditions to use
2.1 Because this is not a hot chassis, it is not necessary to 1) Jig(RS-232C)
use an isolation transformer. However, the use of 2) MSPG925FA Series Pattern Generator(MSPG925FA)
isolation transformer will help protect test instrument. - Resolution: 480i comp1
2.2 Adjustment must be done in the correct order. But it is (MSPG-925FA : model-209, pattern-65)
flexible when its factory local problem occurs. 1080p Comp1/RGB(MSPG-925FA:model-225, pattern-65)
2.3 The adjustment must be performed in the circumstance of - Pattern name: Horizontal 100% Color Bar Pattern
25±5°C of temperature and 65±10% of relative humidity if - Pattern level: 0.7±0.1 Vp-p
there is no specific designation. - Image
2.4 The input voltage of the receiver must keep 100~220V,
50/60Hz.
2.5 Before adjustment, execute Heat-Run for 30 minutes.
O After Receive 100% Full white pattern (06CH) then
process Heat-run
(Or 8. Test Pattern condition of Ez Adjust)
O How to make set white pattern
A. Press Power ON button of Service Remocon
B. Press ADJ button of Service remocon. Select "10.
Test pattern" and, after select "White" using
navigation button, and then you can see 100% Full
White pattern. 3.3 How to adjust
3.3.1 ADC 480i Comp1
* In this status you can maintain Heat-Run useless any 1) Check the Component1 connection condition from the
pattern generator used device.
2) Apply 480i Mode, Horizontal 100% Color Bar Pattern
Note) If you maintain one picture over 20 minutes (Especially to Comp1 port.
sharp distinction black with white pattern 13Ch, or (MSPG-925FA => Model: 209, Pattern: 65)
Cross hatch pattern 09Ch) then it can appear image 3) Set the input to Component1 and select `Normal' as
stick near black level video.
4) Wait for one second or longer after receiving the
signal, press the ADJ key of the R/C to enter into 'Ez-
Adjust', select '3. ADC 480i Comp1', and press the
Enter key to automatically adjust.
5) If it is normally adjusted, the message "ADC
Component1 Success" is displayed.
6) If it is not normally adjusted, the message 'ADC
Component1 480i Fail' is displayed. If the component
is not connected, the message Component1 Not
Connected, or if the input format is not 480i, the
message 'Not Valid Format', or if there is no input
signal, the message 'Check Signal Status' is displayed
for one second.
7) If the adjustment is failed, check the pattern or the
adjustment condition and then readjust
Copyright C 2008 LG Electronics. Inc. All right reserved. - 11 - LGE Internal Use Only
Only for training and service purposes
3.3.2 ADC 1080p Comp1/RGB 4.3 Adjustment wiring diagram (D/L device
1) Check the connection condition of Component1 and configuration diagram)
RGB from the device to use.
2) Apply 1080p Mode, 100% Horizontal Color Bar Pattern
to Comp1 and RGB port.
(MSPG-925 Series => model:225 , pattern:65 ) DVI to HDMI
USB
3) Set the input to Component1 and select `Normal' as LCD TV SET
video. (or VSC Board)
4) Wait for one second or longer after receiving the signal, D-SUB
press the ADJ key of the R/C to enter into 'Ez-Adjust',
select '4. ADC 1080p Comp1/RGB', and press the Device configuration diagram for HDMI EDID Data input
Enter key to automatically adjust the component1.
5) If it is normally adjusted, the message "ADC
Component1 Success" is displayed, or if not, the
4.4 How to download
message 'ADC Component1 1080p Fail' is displayed.
1) Configure the download environment as shown at the
6) When adjusting the Component1 is ended, it is
adjustment wiring diagram and turn on the PC.
automatically switched to the RGB-DTV Mode and the
2) Execute the DDC program. (EDID Data Write & Read)
RGT adjustment is started. If it is normally adjusted, the
3) Go to Model -> Open, and select the EDID data of the
message "ADC RGB 1080P Success" is displayed.
desired model.
7) If it is not normally adjusted, check the pattern or the
4) Check the item to download from the item
adjustment condition, and then readjust. The error
4-1) HDMI & RGB: Check Digital & Analog
message is same to 6).
4-2) (Only)HDMI: Check Digital only
8) If the adjustment is ended, press the ADJ key to exit
5) Press ESC(Cancel Mode) -> F8(Auto Mode). (Set Auto
from the adjustment mode. If the 7) adjustment is
Detecting)
ended, press the ADJ or the Exit of the adjustment R/C
6) Connect the desired signal cable to the set.
to exit from the adjustment mode.
7) Make sure that the popup "Proceed to write?" is displayed.
8) Press the Enter key or the space key to download.
4. EDID(The Extended Display Identification 9) After downloading, check the OK message and disconnect
Data) / DDC(Display Data Channel) download the connected cable.
4.1 Overview
VESA specification. Function to implement the "Plug and
Play" for automatically reconfiguring the user environment to
directly use by exchanging the information with no direct
command to the PC or the monitor from the user.
4.2 Device to use
- PC (S/W included: EDID Data Write & Read)
- EDID DOWNLOAD JIG
- HDMI Cable, D-sub Cable
Copyright C 2008 LG Electronics. Inc. All right reserved. - 12 - LGE Internal Use Only
Only for training and service purposes
4.5 EDID DATA EDID Block 1 table =
Note) Because downloading can be down at the power on
mode only, if it is not set, press the Power ON key of 0 1 2 3 4 5 6 7 8 9 A B C D E F
0 02 03 18 F1 47 84 05 03 02 20 22 10 23 15 07 50
the remote controller to proceed.
10 67 03 0C 00 30 00 B8 2D 01 1D 00 72 51 D0 1E 20
O HDMI1 EDID(C/S:8A27)
20 6E 28 55 00 C4 8E 21 00 00 1E 01 1D 80 18 71 1C
EDID Block 0 table =
30 16 20 58 2C 25 00 C4 8E 21 00 00 9E 8C 0A D0 8A
0 1 2 3 4 5 6 7 8 9 A B C D E F 40 20 E0 2D 10 10 3E 96 00 C4 8E 21 00 00 18 8C 0A
0 00 FF FF FF FF FF FF 00 1E 6D 01 00 01 01 01 01 50 D0 8A 20 E0 2D 10 10 3E 96 00 13 8E 21 00 00 18
10 00 11 01 03 80 73 41 96 0A CF 74 A3 57 4C B0 23 60 26 36 80 A0 70 38 1F 40 30 20 25 00 C4 8E 21 00
20 09 48 4C AF CF 00 31 40 45 40 61 40 81 80 A9 40 70 00 1A 00 00 00 00 00 00 00 00 00 00 00 00 00 07
30 01 01 01 01 01 01 02 3A 80 18 71 38 2D 40 58 2C
40 45 00 C4 8E 21 00 00 1E 66 21 50 B0 51 00 1B 30 O HDMI4 EDID(C/S:8AF7)
50 40 70 36 00 C4 8E 21 00 00 1E 00 00 00 FD 00 30 EDID Block 0 table =
60 58 1F 64 11 00 0A 20 20 20 20 20 20 00 00 00 FC 0 1 2 3 4 5 6 7 8 9 A B C D E F
70 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 01 8A 0 00 FF FF FF FF FF FF 00 1E 6D 01 00 01 01 01 01
EDID Block 1 table = 10 00 11 01 03 80 73 41 96 0A CF 74 A3 57 4C B0 23
20 09 48 4C AF CF 00 31 40 45 40 61 40 81 80 A9 40
0 1 2 3 4 5 6 7 8 9 A B C D E F
30 01 01 01 01 01 01 02 3A 80 18 71 38 2D 40 58 2C
0 02 03 18 F1 47 84 05 03 02 20 22 10 23 15 07 50
40 45 00 C4 8E 21 00 00 1E 66 21 50 B0 51 00 1B 30
10 67 03 0C 00 10 00 B8 2D 01 1D 00 72 51 D0 1E 20
50 40 70 36 00 C4 8E 21 00 00 1E 00 00 00 FD 00 30
20 6E 28 55 00 C4 8E 21 00 00 1E 01 1D 80 18 71 1C
60 58 1F 64 11 00 0A 20 20 20 20 20 20 00 00 00 FC
30 16 20 58 2C 25 00 C4 8E 21 00 00 9E 8C 0A D0 8A
70 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 01 8A
40 20 E0 2D 10 10 3E 96 00 C4 8E 21 00 00 18 8C 0A
50 D0 8A 20 E0 2D 10 10 3E 96 00 13 8E 21 00 00 18
60 26 36 80 A0 70 38 1F 40 30 20 25 00 C4 8E 21 00 EDID Block 1 table =
70 00 1A 00 00 00 00 00 00 00 00 00 00 00 00 00 27 0 1 2 3 4 5 6 7 8 9 A B C D E F
0 02 03 18 F1 47 84 05 03 02 20 22 10 23 15 07 50
O HDMI2 EDID(C/S:8A17) 10 67 03 0C 00 40 00 B8 2D 01 1D 00 72 51 D0 1E 20
EDID Block 0 table = 20 6E 28 55 00 C4 8E 21 00 00 1E 01 1D 80 18 71 1C
0 1 2 3 4 5 6 7 8 9 A B C D E F 30 16 20 58 2C 25 00 C4 8E 21 00 00 9E 8C 0A D0 8A
0 00 FF FF FF FF FF FF 00 1E 6D 01 00 01 01 01 01 40 20 E0 2D 10 10 3E 96 00 C4 8E 21 00 00 18 8C 0A
10 00 11 01 03 80 73 41 96 0A CF 74 A3 57 4C B0 23 50 D0 8A 20 E0 2D 10 10 3E 96 00 13 8E 21 00 00 18
20 09 48 4C AF CF 00 31 40 45 40 61 40 81 80 A9 40 60 26 36 80 A0 70 38 1F 40 30 20 25 00 C4 8E 21 00
30 01 01 01 01 01 01 02 3A 80 18 71 38 2D 40 58 2C 70 00 1A 00 00 00 00 00 00 00 00 00 00 00 00 00 F7
40 45 00 C4 8E 21 00 00 1E 66 21 50 B0 51 00 1B 30
50 40 70 36 00 C4 8E 21 00 00 1E 00 00 00 FD 00 30 O RGB EDID(C/S:F6BC)
60 58 1F 64 11 00 0A 20 20 20 20 20 20 00 00 00 FC EDID Block 0 table =
70 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 01 8A 0 1 2 3 4 5 6 7 8 9 A B C D E F
EDID Block 1 table = 0 00 FF FF FF FF FF FF 00 1E 6D 01 00 01 01 01 01
10 00 11 01 03 18 73 41 96 0A CF 74 A3 57 4C B0 23
0 1 2 3 4 5 6 7 8 9 A B C D E F
20 09 48 4C AF CF 00 31 40 45 40 61 40 81 80 A9 40
0 02 03 18 F1 47 84 05 03 02 20 22 10 23 15 07 50
30 01 01 01 01 01 01 66 21 50 B0 51 00 1B 30 40 70
10 67 03 0C 00 20 00 B8 2D 01 1D 00 72 51 D0 1E 20
40 36 00 C4 8E 21 00 00 1A 02 3A 80 18 71 38 2D 40
20 6E 28 55 00 C4 8E 21 00 00 1E 01 1D 80 18 71 1C
50 58 2C 45 00 C4 8E 21 00 00 1E 00 00 00 FD 00 30
30 16 20 58 2C 25 00 C4 8E 21 00 00 9E 8C 0A D0 8A
60 58 1F 64 11 00 0A 20 20 20 20 20 20 00 00 00 FC
40 20 E0 2D 10 10 3E 96 00 C4 8E 21 00 00 18 8C 0A
70 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 01 F6
50 D0 8A 20 E0 2D 10 10 3E 96 00 13 8E 21 00 00 18
60 26 36 80 A0 70 38 1F 40 30 20 25 00 C4 8E 21 00
70 00 1A 00 00 00 00 00 00 00 00 00 00 00 00 00 17 EDID Block 1 table =
0 1 2 3 4 5 6 7 8 9 A B C D E F
O HDMI2 EDID(C/S:8A07) 0 02 03 04 00 0E 1F 00 80 51 00 1E 30 40 80 37 00
EDID Block 0 table = 10 C4 8E 21 00 00 1C F1 27 00 A0 51 00 25 30 50 80
20 37 00 C4 8E 21 00 00 1C 26 36 80 A0 70 38 1F 40
0 1 2 3 4 5 6 7 8 9 A B C D E F
30 30 20 25 00 C4 8E 21 00 00 0A 00 00 00 00 00 00
0 00 FF FF FF FF FF FF 00 1E 6D 01 00 01 01 01 01
40 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
10 00 11 01 03 80 73 41 96 0A CF 74 A3 57 4C B0 23
50 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
20 09 48 4C AF CF 00 31 40 45 40 61 40 81 80 A9 40
60 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
30 01 01 01 01 01 01 02 3A 80 18 71 38 2D 40 58 2C
70 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 BC
40 45 00 C4 8E 21 00 00 1E 66 21 50 B0 51 00 1B 30
50 40 70 36 00 C4 8E 21 00 00 1E 00 00 00 FD 00 30
60 58 1F 64 11 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 8A
Copyright C 2008 LG Electronics. Inc. All right reserved. - 13 - LGE Internal Use Only
Only for training and service purposes
5. Adjusting the White Balance 6. How to adjust
5.1 Overview 6.1 How to adjust automatically
- Purpose and principle for adjusting the white balance 1) The adjustment condition should be set by the Power On
- Principle: The full dynamic range of the module when the key.
RGB gain on the OSD is 192. In order to adjust the white 2) Perform the zero calibration of the Color Analyzer and
balance with no saturation of the full dynamic range and the place the probe close to the display center.
data, fix one of the RGB gains to 192 and decrease the 3) Connect the communication cable (RS-232C).
remaining two gains to adjust 4) Select the desired model of the adjustment program and
perform the adjustment.
5.2 Device to use 5) After the adjustment is ended (check the OK sign), check
1) Color Analyzer : CA-210 the adjustment condition for each mode of the set.
(NCG: CH 9 / WCG: CH12 / LED Module : CH14) (Warm, Medium, Cool)
2) Computer to adjust (needed for the automatic adjustment, 6) Disconnect the probe and the communication cable to end
possible to communicate with the RS-232C) the adjustment.
3) Adjustment remote controller
4) Video Signal Generator MSPG-925F 720p/216Gray * The adjustment should be started with "wb 00 00" and ended
(Model:217, Pattern:78) with "wb 00 ff", and the offset should be adjusted when
=> Applied only when the inner pattern cannot be used necessary.
*Use the Color Analyzer with the matrix calibrated by the CS-
1000 6.2 How to adjust manually
1) The adjustment condition should be set by the Power On
5.3 Measuring instrument wiring diagram key.
2) Press the ADJ of the R/C to enter into 'EZ-ADJUST'.
3) Select '10.TEST PATTERN' with the CH +/- key and press
the Enter key for 30 minutes or longer to perform the heat
run.
4) Perform the zero calibration of the Color Analyzer and fix
the sensor with the 10cm or less distance at the center of
the LCD module surface when adjusting.
5) Press the ADJ of the R/C to select '7.White-Balance' of the
Ez-Adjust and press the right arrow key(G) to enter into
the adjustment mode.
(As soon as you press 'G', the screen is entered into the
full white inner pattern.)
5.4 RS-232C Command used for the automatic 6) Fix one of the R/G/B gains to 192 and decrease the
adjustment remaining two gains to adjust not to exceed 192.
7) The adjustment is done at three white balances of Cool,
RS-232C COMMAND Medium and Warm.
Meaning
[CMD ID DATA]
* The inner pattern is basically used, and if it is not possible, the
wb 00 00 White Balance adjustment start. adjustment can be done by selecting the HDMI input. NONE,
wb 00 ff End of White Balance adjust(Inner pattern disappeared INNER or HDMI can be selected by the bottom option at the Ez
Adjust Menu 7.White Balance menu and it is set to INNER as
- "wb 00 00": Start Auto-adjustment of white balance. default. If the adjustment cannot be done by the inner pattern,
- "wb 00 10": Start Gain Adjustment (Inner pattern) select the HDMI to adjust.
- "jb 00 c0" :
-...
- "wb 00 1f": End of Adjustment * Adjustment environment and reference
* If it needs, offset adjustment (wb 00 20-start, wb 00 2f- 1) Environment illuminance
end) Adjust it to 10 LUX or less at the place where the light
- "wb 00 ff": End of white balance adjustment (inner pattern source such as lamp should be blocked at maximum.
disappear) 2) Probe location
- LCD: Maintain the Color Analyzer (CA-210) close to the