LG 32LS3500 User manual

Printed in ChinaP/NO : MFL67360705(1204-REV00)
CHASSIS : LC21C
MODEL : 32LS3500
MODEL : 32LS3500-CA
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
LED LCD TV
SERVICE MANUAL
North/Latin America http://aic.lgservice.com
Europe/Africa http://eic.lgservice.com
Asia/Oceania http://biz.lgservice.com
Internal Use Only

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CONTENTS
CONTENTS .............................................................................................. 2
SAFETY PRECAUTIONS ........................................................................ 3
SERVICING PRECAUTIONS ................................................................... 4
SPECIFICATION ...................................................................................... 5
ADJUSTMENT INSTRUCTION ............................................................... 9
BLOCK DIAGRAM ................................................................................. 17
EXPLODED VIEW .................................................................................. 19
SCHEMATIC CIRCUIT DIAGRAM ..............................................................

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Only for training and service purposes
Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by in the
Schematic Diagram and Exploded View.
It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent
Shock, Fire, or other Hazards.
Do not modify the original design without permission of manufacturer.
General Guidance
An isolation Transformer should always be used during the
servicing of a receiver whose chassis is not isolated from the AC
power line. Use a transformer of adequate power rating as this
protects the technician from accidents resulting in personal injury
from electrical shocks.
It will also protect the receiver and it's components from being
damaged by accidental shorts of the circuitry that may be
inadvertently introduced during the service operation.
If any fuse (or Fusible Resistor) in this TV receiver is blown,
replace it with the specified.
When replacing a high wattage resistor (Oxide Metal Film Resistor,
over 1 W), keep the resistor 10 mm away from PCB.
Keep wires away from high voltage or high temperature parts.
Before returning the receiver to the customer,
always perform an AC leakage current check on the exposed
metallic parts of the cabinet, such as antennas, terminals, etc., to
be sure the set is safe to operate without damage of electrical
shock.
Leakage Current Cold Check(Antenna Cold Check)
With the instrument AC plug removed from AC source, connect an
electrical jumper across the two AC plug prongs. Place the AC
switch in the on position, connect one lead of ohm-meter to the AC
plug prongs tied together and touch other ohm-meter lead in turn to
each exposed metallic parts such as antenna terminals, phone
jacks, etc.
If the exposed metallic part has a return path to the chassis, the
measured resistance should be between 1 MΩ and 5.2 MΩ.
When the exposed metal has no return path to the chassis the
reading must be infinite.
An other abnormality exists that must be corrected before the
receiver is returned to the customer.
Leakage Current Hot Check (See below Figure)
Plug the AC cord directly into the AC outlet.
Do not use a line Isolation Transformer during this check.
Connect 1.5 K / 10 watt resistor in parallel with a 0.15 uF capacitor
between a known good earth ground (Water Pipe, Conduit, etc.)
and the exposed metallic parts.
Measure the AC voltage across the resistor using AC voltmeter
with 1000 ohms/volt or more sensitivity.
Reverse plug the AC cord into the AC outlet and repeat AC voltage
measurements for each exposed metallic part. Any voltage
measured must not exceed 0.75 volt RMS which is corresponds to
0.5 mA.
In case any measurement is out of the limits specified, there is
possibility of shock hazard and the set must be checked and
repaired before it is returned to the customer.
Leakage Current Hot Check circuit
IMPORTANT SAFETY NOTICE
SAFETY PRECAUTIONS

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SERVICING PRECAUTIONS
CAUTION: Before servicing receivers covered by this service
manual and its supplements and addenda, read and follow the
SAFETY PRECAUTIONS on page 3 of this publication.
NOTE: If unforeseen circumstances create conict between the
following servicing precautions and any of the safety precautions
on page 3 of this publication, always follow the safety precautions.
Remember: Safety First.
General Servicing Precautions
1. Always unplug the receiver AC power cord from the AC power
source before;
a. Removing or reinstalling any component, circuit board mod-
ule or any other receiver assembly.
b. Disconnecting or reconnecting any receiver electrical plug or
other electrical connection.
c. Connecting a test substitute in parallel with an electrolytic
capacitor in the receiver.
CAUTION: A wrong part substitution or incorrect polarity
installation of electrolytic capacitors may result in an explo-
sion hazard.
2. Test high voltage only by measuring it with an appropriate
high voltage meter or other voltage measuring device (DVM,
FETVOM, etc) equipped with a suitable high voltage probe.
Do not test high voltage by "drawing an arc".
3. Do not spray chemicals on or near this receiver or any of its
assemblies.
4. Unless specied otherwise in this service manual, clean
electrical contacts only by applying the following mixture to the
contacts with a pipe cleaner, cotton-tipped stick or comparable
non-abrasive applicator; 10 % (by volume) Acetone and 90 %
(by volume) isopropyl alcohol (90 % - 99 % strength)
CAUTION: This is a ammable mixture.
Unless specied otherwise in this service manual, lubrication of
contacts in not required.
5. Do not defeat any plug/socket B+ voltage interlocks with which
receivers covered by this service manual might be equipped.
6. Do not apply AC power to this instrument and/or any of its
electrical assemblies unless all solid-state device heat sinks are
correctly installed.
7. Always connect the test receiver ground lead to the receiver
chassis ground before connecting the test receiver positive
lead.
Always remove the test receiver ground lead last.
8. Use with this receiver only the test xtures specied in this
service manual.
CAUTION: Do not connect the test xture ground strap to any
heat sink in this receiver.
Electrostatically Sensitive (ES) Devices
Some semiconductor (solid-state) devices can be damaged eas-
ily by static electricity. Such components commonly are called
Electrostatically Sensitive (ES) Devices. Examples of typical ES
devices are integrated circuits and some eld-effect transistors
and semiconductor “chip” components. The following techniques
should be used to help reduce the incidence of component dam-
age caused by static by static electricity.
1. Immediately before handling any semiconductor component or
semiconductor-equipped assembly, drain off any electrostatic
charge on your body by touching a known earth ground. Alter-
natively, obtain and wear a commercially available discharging
wrist strap device, which should be removed to prevent poten-
tial shock reasons prior to applying power to the unit under test.
2. After removing an electrical assembly equipped with ES
devices, place the assembly on a conductive surface such as
aluminum foil, to prevent electrostatic charge buildup or expo-
sure of the assembly.
3. Use only a grounded-tip soldering iron to solder or unsolder ES
devices.
4. Use only an anti-static type solder removal device. Some solder
removal devices not classied as “anti-static” can generate
electrical charges sufcient to damage ES devices.
5. Do not use freon-propelled chemicals. These can generate
electrical charges sufcient to damage ES devices.
6. Do not remove a replacement ES device from its protective
package until immediately before you are ready to install it.
(Most replacement ES devices are packaged with leads electri-
cally shorted together by conductive foam, aluminum foil or
comparable conductive material).
7. Immediately before removing the protective material from the
leads of a replacement ES device, touch the protective material
to the chassis or circuit assembly into which the device will be
installed.
CAUTION: Be sure no power is applied to the chassis or circuit,
and observe all other safety precautions.
8. Minimize bodily motions when handling unpackaged replace-
ment ES devices. (Otherwise harmless motion such as the
brushing together of your clothes fabric or the lifting of your
foot from a carpeted oor can generate static electricity suf-
cient to damage an ES device.)
General Soldering Guidelines
1. Use a grounded-tip, low-wattage soldering iron and appropriate
tip size and shape that will maintain tip temperature within the
range or 500 °F to 600 °F.
2. Use an appropriate gauge of RMA resin-core solder composed
of 60 parts tin/40 parts lead.
3. Keep the soldering iron tip clean and well tinned.
4. Thoroughly clean the surfaces to be soldered. Use a mall wire-
bristle (0.5 inch, or 1.25 cm) brush with a metal handle.
Do not use freon-propelled spray-on cleaners.
5. Use the following unsoldering technique
a. Allow the soldering iron tip to reach normal temperature.
(500 °F to 600 °F)
b. Heat the component lead until the solder melts.
c. Quickly draw the melted solder with an anti-static, suction-
type solder removal device or with solder braid.
CAUTION: Work quickly to avoid overheating the circuit
board printed foil.
6. Use the following soldering technique.
a. Allow the soldering iron tip to reach a normal temperature
(500 °F to 600 °F)
b. First, hold the soldering iron tip and solder the strand against
the component lead until the solder melts.
c. Quickly move the soldering iron tip to the junction of the
component lead and the printed circuit foil, and hold it there
only until the solder ows onto and around both the compo-
nent lead and the foil.
CAUTION: Work quickly to avoid overheating the circuit
board printed foil.
d. Closely inspect the solder area and remove any excess or
splashed solder with a small wire-bristle brush.

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IC Remove/Replacement
Some chassis circuit boards have slotted holes (oblong) through
which the IC leads are inserted and then bent at against the cir-
cuit foil. When holes are the slotted type, the following technique
should be used to remove and replace the IC. When working with
boards using the familiar round hole, use the standard technique
as outlined in paragraphs 5 and 6 above.
Removal
1. Desolder and straighten each IC lead in one operation by
gently prying up on the lead with the soldering iron tip as the
solder melts.
2. Draw away the melted solder with an anti-static suction-type
solder removal device (or with solder braid) before removing
the IC.
Replacement
1. Carefully insert the replacement IC in the circuit board.
2. Carefully bend each IC lead against the circuit foil pad and
solder it.
3. Clean the soldered areas with a small wire-bristle brush.
(It is not necessary to reapply acrylic coating to the areas).
"Small-Signal" Discrete Transistor
Removal/Replacement
1. Remove the defective transistor by clipping its leads as close
as possible to the component body.
2. Bend into a "U" shape the end of each of three leads remaining
on the circuit board.
3. Bend into a "U" shape the replacement transistor leads.
4. Connect the replacement transistor leads to the corresponding
leads extending from the circuit board and crimp the "U" with
long nose pliers to insure metal to metal contact then solder
each connection.
Power Output, Transistor Device
Removal/Replacement
1. Heat and remove all solder from around the transistor leads.
2. Remove the heat sink mounting screw (if so equipped).
3. Carefully remove the transistor from the heat sink of the circuit
board.
4. Insert new transistor in the circuit board.
5. Solder each transistor lead, and clip off excess lead.
6. Replace heat sink.
Diode Removal/Replacement
1. Remove defective diode by clipping its leads as close as pos-
sible 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.
Circuit Board Foil Repair
Excessive heat applied to the copper foil of any printed circuit
board will weaken the adhesive that bonds the foil to the circuit
board causing the foil to separate from or "lift-off" the board. The
following guidelines and procedures should be followed whenever
this condition is encountered.
At IC Connections
To repair a defective copper pattern at IC connections use the
following procedure to install a jumper wire on the copper pattern
side of the circuit board. (Use this technique only on IC connec-
tions).
1. Carefully remove the damaged copper pattern with a sharp
knife. (Remove only as much copper as absolutely necessary).
2. carefully scratch away the solder resist and acrylic coating (if
used) from the end of the remaining copper pattern.
3. Bend a small "U" in one end of a small gauge jumper wire and
carefully crimp it around the IC pin. Solder the IC connection.
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 copper pattern. Solder the overlapped area and clip off
any excess jumper wire.
At Other Connections
Use the following technique to repair the defective copper pattern
at connections other than IC Pins. This technique involves the
installation of a jumper wire on the component side of the circuit
board.
1. Remove the defective copper pattern with a sharp knife.
Remove at least 1/4 inch of copper, to ensure that a hazardous
condition will not exist if the jumper wire opens.
2. Trace along the copper pattern from both sides of the pattern
break and locate the nearest component that is directly con-
nected to the affected copper pattern.
3. Connect insulated 20-gauge jumper wire from the lead of the
nearest component on one side of the pattern break to the lead
of the nearest component on the other side.
Carefully crimp and solder the connections.
CAUTION: Be sure the insulated jumper wire is dressed so the
it does not touch components or sharp edges.

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: 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 20 minutes prior to
the adjustment.
4. Model General Specification
No. Item Remarks
1. Market HONG KONG
(PAL/DTMB Market)
2. Broadcasting system
1) PAL-DK
2) PAL-I
3) NTSC-M
4) DVB-C 5)DTMB
3.
Receiving system Analog : Upper Heterodyne
Digital : COFDM,QAM
► DTMB
( Carrier , Code Rate , Constellation , Frame Header ,
Interleaving )*. China
- MODE1 : 3780 , 0.4 , 16QAM , PN945 , 720 , 9.626Mbps
- MODE2 : 1 , 0.8 , 4QAM , PN595 , 720 , 10.396Mbps
- MODE3 : 3780 , 0.6 , 16QAM , PN945 , 720 , 14.438Mbps
- MODE4 : 1 , 0.8 , 16QAM , PN595 , 720 , 20.791Mbps
- MODE5 : 3780 , 0.8 , 16QAM , PN420 , 720 , 21.658Mbps
- MODE6 : 3780 , 0.6 , 64QAM , PN420 , 720 , 24.365Mbps
- MODE7 : 1 , 0.8 , 32QAM , PN595 , 720 , 25.989Mbps
*. HONG KONG
- MODE : 3780 , 0.4/0.6 , 4/16/64QAM , PN945 , 720
QPSK : 1/2, 2/3, 3/4, 5/6, 7/8
16-QAM : 1/2, 2/3, 3/4, 5/6, 7/8
64-QAM : 1/2, 2/3, 3/4, 5/6, 7/8
► DVB-C
- Symbolrate :
4.0Msymbols/s to 7.2Msymbols/s
- Modulation :
16QAM, 64-QAM, 128-QAM and 256-QAM
4 Video Input RCA(1EA) PAL,NTSC REAR 1EA
5. Component Input Y/Cb/Cr, Y/Pb/Pr
6. RGB Input RGB-PC Analog(D-SUB 15PIN)
7. HDMI Input HDMI1-DTV/DVI,
HDMI3-DTV/DVI,
PC(HDMI version 1.3)
Support HDCP
8. Audio Input RGB/DVI Audio,Component
AV,
9. SPDIF out SPDIF out
10 USB Input FEMF, DivX HD, For SVC (download)
L/R Input
JPEG, MP3, DivX HD
11 Lan Jack
SPECIFICATION
NOTE : Specifications and others are subject to change without notice for improvement .
1. Application range
This specification is applied to the LCD TV used LC21C
chassis.
2. Requirement for Test
Each part is tested as below without special appointment.
1) Temperature: 25 °C ± 5 °C(77 °F ± 9 °F), CST: 40 °C ± 5 °C
2) Relative Humidity: 65 % ± 10 %
3) Power Voltage
3. Test method
1) Performance: LGE TV test method followed
2) Demanded other specification
- Safety : CE, IEC specification
- EMC : CE, IEC
- Wireless : Wireless HD Specification (Option)

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5. Component Video Input (Y,
Cb/Pb, Cr/Pr)
6. RGB input (PC)
No. Resolution H-freq(kHz) V-freq.(Hz) Proposed Remark
2
3
4
720*400 31.468 70.08 VESA(VGA)
5
640*480 31.469 59.94 VESA(SVGA)
7
800*600 37.879 60.31 VESA(XGA)
8
1024*768 48.363 60.00 VESA
1360*768 47.72 59.8 VESA(WXGA)
1920*1080 66.587 59.93 WUXGA(CEA 861D) FHD only
1640*350 31.47 70.09 EGA
1152*864 54.348 60.053 VESA
No. Resolution H-freq(kHz) V-freq(Hz) Porposed
1 720×480 15.73 60.00 SDTV, DVD 480i
2 720×480 15.63 59.94 SDTV, DVD 480i
3 720×480 31.47 59.94 480p
4 720×480 31.50 60.00 480p
5 720×576 15.625 50.00 SDTV, DVD 625 Line
6 720×576 31.25 50.00 HDTV 576p
7 1280×720 45.00 50.00 HDTV 720p
8 1280×720 44.96 59.94 HDTV 720p
9 1280×720 45.00 60.00 HDTV 720p
10 1920×1080 31.25 50.00 HDTV 1080i
11 1920×1080 33.75 60.00 HDTV 1080i
12 1920×1080 33.72 59.94 HDTV 1080i
13 1920×1080 56.250 50 HDTV 1080p
14 1920×1080 67.5 60 HDTV 1080p

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7. HDMI Input
7.1. DTV mode
No. Resolution H-freq(kHz) V-freq.(kHz) Proposed Proposed
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
7.2. PC mode
No. Resolution H-freq(kHz) V-freq.(Hz) Proposed Remark
2 31.468 70.08
3
720 x 400
31.469 59.94 VESA
4
640 x 480
37.879 60.31 VESA
5
800 x 600
6
1024 x 768 48.363 60.00 VESA(XGA)
7 63.595 60.0
60.0
8
1280 x 1024
WXGA
SXGA
FHD only(support to RGB-PC)
1360 x 768 47.712 59.8
1920 x 1080 67.5 WUXGA
1 640*350 31.47 70.09 EGA
DOS

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ADJUSTMENT INSTRUCTION
1. Application *
1.1 This spec sheet is applied all of the LCD TV with LB21A/B/C chassis.
1.2 Main manufacturing type
l SET ( O )
l SKD ( O )
l CKD ( O )
2. Designation
2.1 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.
2.2. Power adjustment : Free Voltage.
2.3. Magnetic Field Condition: Nil.
2.4. Input signal Unit: Product Specification Standard.
2.5. Reserve after operation : Above 5 Minutes (Heat Run)
Temperature : at 25℃±5°C
Relative humidity : 65 ±10%
Input voltage : 220V, 60Hz
2.6. Adjustment equipments : Color Analyzer(CA-210 or CA-110), DDC Adjustment Jig, SVC remote controller.
2.7 Push The “IN STOP KEY”–For memory initialization.
Case1 : Software version up
1. After downloading S/W by USB , TV set will reboot automatically
2. Push “In-stop”key
3. Push “Power on”key
4. Function inspection
5. After function inspection, Push “In-stop”key.
Case2 : Function check at the assembly line
1. When TV set is entering on the assembly line, Push “In-stop”key at first.
2. Push “Power on”key for turning it on.
èIf you push “Power on”key, TV set will recover channel information by itself.
3. After function inspection, Push “In-stop”key.

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3. Main PCB check process
* APC - After Manual-Insert, 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”
4. Click “Connect” tab.If “Can’t ” is displayed, Check connection between computer, jig, and set.
5. Click “Auto” tab and set as below.
6. Click “Run”.
7. After downloading, check “OK” message.
(1)
filexxx.bin
(2) (3)
Please Check the Speed :
To use speed between
from 200KHz to 400KHz
filexxx.bin
(4)
(7) ……….OK
(5)
(6)

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* USB download (*.epk file download)
1. Put the USB Stick to the USB socket
2. Automatically detecting update file in USB Stick.
- If version of update file in USB Stick is lower, it will not work.
But version of update file is higher, USB data will be detected
automatically.
3. Show the message “Copying files from memory”
4. Updating is staring.
5. Updating Completed, The TV will restart automatically.
6. If your TV is turned on, check your updated version and 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
channel recover. if all channel data is cleared, you didn’t have a DTV/ATV test on production line.
* After downloading, have to check and adjust TOOL OPTION again.
1. Push "IN-START" key in service remote controller.
2. Select "Tool Option 1" and Push “OK”button.
3. Punch in the number. (Each of models has their number)

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Model Module
Tool opt 1
Tool opt 2
Tool opt 3
Tool opt 4
Tool opt 5
47LS4100-CA LGD
33079 2498 9539 13240 2048
42LS4100-CA LGD
33078 2498 9539 13240 2048
42CS460-CB LGD
32790 450 9291 13232 2561
32CS460-CB LGD
32788 450 9291 13232 2592
32LS3500-CA LGD
33060 33218 9547 13232 2080
42LM3400-CC
LGD
33206 450 25803 46000 2080
42LM3100-CC
LGD
33286 450 25795 46008 2080
32LM3100-CC
LGD
33284 450 25795 46008 2080
55LM4600-CC
LGD
47LM4600-CC
LGD
4. Completed selecting Tool option.

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3.1 ADC Process
3.1.1. ADC
■Enter Service Mode by pushing “ADJ”key,
■Enter Internal ADC mode by pushing “►” key at “6. ADC Calibration”
☞Caution: Using ‘P-ONLY’button of the Adjustment R/C , power on TV.
※ADC Calibration Protocol (RS-232)
NO Item CMD 1 CMD 2 Data 0
Enter
Adjust MODE Adjust ‘Mode In’A A 0 0 When transfer the ‘Mode In’, Carry the command.
ADC adjust ADC Adjust A D 1 0 Automatically adjustment
(The use of a internal pattern)
Adjust Sequence
▪aa 00 00 [Enter Adjust Mode]
▪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]
▪aa 00 90 End Adjust mode
※Required equipment : Adjustment R/C.
ADC Calibration
ADC Comp 480i NG
ADC Comp 1080p NG
Start Reset
EZ ADJUST
0. Tool Option1
1. Tool Option2
2. Tool Option3
3. Tool Option4
4. Tool Option5
5. Country Group
6. ADC Calibration ▶
7. White Balance
8. 10 Point WB
9. Test Pattern
10. EDID D/L
11. Sub B/C
12. Touch Sensitivity Setting
13.Ext. Input Adjust

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3.2 Function Check
3.5.1 Check display and sound
■Check Input and Signal items. (cf. work instructions)
1. TV
2. AV
3. COMPONENT (480i)
4. HDMI
* Display and Sound check is executed by Remote controller.
☞Caution : Not to push the INSTOP KEY after completion if the function inspection.
4. Total Assembly line process
4.1 Adjustment Preparation
■W/B Equipment condition
CA210 : CCFL/EEFL èCH 9, Test signal : Inner pattern (80IRE)
LED èCH 14, Test signal : Inner pattern (80IRE)
■Above 5 minutes H/run in the inner pattern. (“power on”key of adjust remote control)
Cool 11,000k K
X=0.276 (±0.002)
Y=0.283 (±0.002)
Medium 9,300k K
X=0.285 (±0.002)
Y=0.293 (±0.002)
Warm 6,500k K
X=0.313 (±0.002)
Y=0.329 (±0.002)
O/S TN Edge LED/ Lamp
under 26”
Cool 11,000k K
X=0.276 (±0.002)
Y=0.283 (±0.002)
Medium 9,300k K
X=0.285 (±0.002)
Y=0.293 (±0.002)
Color
Temperature
Warm 6,500k K
X=0.313 (±0.002)
Y=0.329 (±0.002)
All LCD and O/S LED(except
LGD),lamp over 26”
<Test Signal>
Inner pattern
(204gray,
80IRE)
◈Edge LED W/B Table in process of aging time (Only LGD Edge LED Module)
CA210 : CH 14, Test signal : Inner pattern (80IRE)
Cool(13000K) Medium(9300K) Warm(6500K)
x y x y x y
S7LR2 Aging time
(Min)
269 273 285 293 313 329
1 0-2 280 287 296 307 320 337
2 3-5 279 285 295 305 319 335
3 6-9 277 284 293 304 317 334
4 10-19 276 283 292 303 316 333
5 20-35 274 280 290 300 314 330
6 36-49 272 277 288 297 312 327
7 50-79 271 275 287 295 311 325
8 80-149 270 274 286 294 310 324
9 Over 150 269 273 285 293 309 323

- 15 - LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
◈Direct LED W/B adjust target value (Only LGD direct LED, LM3100/LM3400 series)
Cool Medium Warm
x y x y x y
Target
(Direct LED)
271 276 287 296 315 332
◈Summary about W/B information
Model Information W/B Information
Model Maker
Type Cool
(C50)
Medium
(0)
Warm
(W50)
W/B table for
LGD edge LED
47LS4100-CA LGD Edge LED 13000K 9300K 6500K O
42LS4100-CA LGD Edge LED 13000K 9300K 6500K O
32LS3500-CA LGD Edge LED 13000K 9300K 6500K O
42CS460-CB LGD EEFL 11000K 9300K 6500K X
32CS460-CB LGD EEFL 11000K 9300K 6500K X
42LM3400-CC LGD Direct LED 13000K 9300K 6500K X
42LM3100-CC LGD Direct LED 13000K 9300K 6500K X
32LM3100-CC LGD Direct LED 13000K 9300K 6500K X
55LM4600-CC LGD Edge LED 13000K 9300K 6500K O
47LM4600-CC LGD Edge LED 13000K 9300K 6500K O
※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 P-ONLY à
Enter the mode of White-Balance, the pattern will come out.
Auto-control interface and directions
1. Adjust in the place where the influx of light like floodlight around is blocked. (Illumination is less than 10ux).
2. Adhere closely the Color Analyzer ( CA210 ) to the module less than 10cm distance, keep it with the surface of
the Module and Color Analyzer’s Prove vertically.(80~100°).
3. Aging time
-. After aging start, keep the power on (no suspension of power supply) and heat-run over 5 minutes.
-. Using ‘no signal’or ‘POWER ONLY’or the others, check the back light on.

- 16 - LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
◈Auto adjustment Map(RS-232C)
RS-232C COMMAND
[ CMD ID DATA ]
Wb 00 00 White Balance Start
Wb 00 ff White Balance End
** Caution **
Color Temperature : COOL, Medium, Warm.
One of R Gain/G Gain/ B Gain should be kept on 0xC0, and adjust other two lower than C0.
(when R/G/B Gain are all C0, it is the FULL Dynamic Range of Module)
RS-232C COMMAND
[CMD ID DATA]
CENTER
(DEFAULT)
Cool Mid Warm
MIN
Cool Mid Warm
MAX
R Gain jg Ja jd 00 172 192 192 192
G Gain jh Jb je 00 172 192 192 192
B Gain ji Jc jf 00 192 192 172 192
R Cut 64 64 64 128
G Cut 64 64 64 128
B Cut 64 64 64 128

- 17 - LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
* Manual W/B process using adjusts Remote control.
■After enter Service Mode by pushing “ADJ”key,
■Enter White Balance by pushing “►” key at “7. White Balance”.
※After You finish all adjustments, Press “In-start”button 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.
For correct it to the model’s module from factory JIG model.
※Push the “IN-STOP KEY”after completing the function inspection.
4.2 DDC EDID Write (RGB 128Byte )
■Connect D-sub Signal Cable to D-Sub Jack.
■Write EDID DATA to EEPROM (24C02) by using DDC2B protocol.
■Check whether written EDID data is correct or not.
* For SVC main Ass’y, EDID have to be downloaded to Insert Process in advance.
4.3 DDC EDID Write (HDMI 256Byte)
■Connect HDMI Signal Cable to HDMI Jack.
■Write EDID DATA to EEPROM(24C02) by using DDC2B protocol.
■Check whether written EDID data is correct or not.
* For SVC main Ass’y, EDID have to be downloaded to Insert Process in advance.
White Balance
Color Temp. ◀Cool ▶
R-Gain 172
G-Gain 172
B-Gain 192
R-Cut 64
G-Cut 64
B-Cut 64
Test-Pattern ON
Backlight 100
Reset To Set
EZ ADJUST
0. Tool Option1
1. Tool Option2
2. Tool Option3
3. Tool Option4
4. Tool Option5
5. Country Group
6. ADC Calibration
7. White Balance ▶
8. 10 Point WB
9. Test Pattern
10. EDID D/L
11. Sub B/C
12. Touch Sensitivity Setting
13. Ext. Input Adjust

- 18 - LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
4.5 EDID DATA
1) All Data : HEXA Value
2) Changeable Data :
*: Serial No : Controlled / Data:01
**: Month : Controlled / Data:00
***:Year : Controlled
****:Check sum
- Auto Download
■After enter Service Mode by pushing “ADJ”key,
■Enter EDID D/L mode.
■Enter “START”by pushing “OK”key.
☞Caution : Never connect HDMI & D-sub Cable
when EDID downloaded.
※LS4100, LS3500 and CS460 series have only two HDMI.
※EDID data and Model option download (RS232)
NO Item CMD 1
CMD 2 Data 0
Enter
download MODE
Download
‘Mode In’A A 0 0 When transfer the ‘Mode In’, Carry the command.
EDID data and
Model option
download
Download A E 00 10 Automatically download
(The use of a internal Data)
- Manual Download
※Caution
* Use the proper signal cable for EDID Download
- Analog EDID : Pin3 exists
- Digital EDID : Pin3 exists
- Never connect HDMI & D-sub Cable at the same time.
- Use the proper cables below for EDID Writing.
EZ ADJUST
0. Tool Option1
1. Tool Option2
2. Tool Option3
3. Tool Option4
4. Tool Option5
5. Country Group
6. ADC Calibration
7. White Balance
8. 10 Point WB
9. Test Pattern
10. EDID D/L ▶
11. Sub B/C
12. Touch Sensitivity setting
13. Ext. Input Adjust
EDID D/L
HDMI1 OK
HDMI2 OK
HDMI3 OK
RGB OK
Start Reset
EDID D/L
HDMI1 NG
HDMI2 NG
HDMI3 NG
RGB NG
Start Reset

- 19 - LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
- Download HDMI1/2/3 separately because each EDID data is different.
For Analog EDID
For HDMI EDID
D-sub to D-sub DVI-D to HDMI or HDMI to HDMI
No. Item Condition Hex Data
1 Manufacturer ID GSM 1E6D
2 Version Digital : 1 01
3 Revision Digital : 3 03

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Only for training and service purposes
※Model information
Model BLU Freq. Resolution
47LS4100-CA Edge LED 60Hz FHD (8bit)
42LS4100-CA Edge LED 60Hz FHD (8bit)
32LS3500-CA Edge LED 60Hz HD (8bit)
42CS460-CB EEFL 60Hz FHD (10bit)
32CS460-CB EEFL 60Hz HD (8bit)
42LM3400-CC Direct LED 60Hz FHD(10bit)
42LM3100-CC Direct LED 60Hz FHD(8bit)
32LM3100-CC Direct LED 60Hz HD(8bit)
55LM4600-CC Edge LED 60Hz FHD (8bit)
47LM4600-CC Edge LED 60Hz FHD (8bit)
4.5 Model name & Serial number Download
4.5.1 Model name & Serial number D/L
■Press “Power on”key of service remocon.(Baud rate : 115200 bps)
■Connect USB to RS232 cable at USB Jack.
■Write model name and serial number.
■Must check the model name and serial number at the Product/Service Info.
(menu keyàred key àselect Product/Service info)
4.5.2 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