LG 32LB3RS User manual

TELEVISOR A LCD
MANUAL DE SERVIÇO
ATENÇÃO
Antes de reparar este chassis, leia as PRECAUÇÕES DE SEGURANÇA
contidas neste manual.
CHASSIS : LP70A
MODELO : 32LB3RS 32LB3RS-MB
website:http://biz.LGservice.com
Internal Use Only

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CONTEÚDO
CONTEÚDO ............................................................................................. 2
PRECAUÇÕES DE SEGURANÇA ...........................................................3
ESPECIFICAÇÃO......................................................................................6
INSTRUÇÕES DE AJUSTE.....................................................................10
SOLUÇÃO DE PROBLEMAS..................................................................16
DIAGRAMA DE BLOCOS .......................................................................22
VISTAS EXPLODIDAS .......................................................................... 24
LISTA DAS VISTAS EXPLODIDAS.........................................................25
LISTA DE PEÇAS DE REPOSIÇÃO ...................................................... 26
DIAGRAMA ELÉTRICO...............................................................................

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SAFETY PRECAUTIONS
Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by in the
Schematic Diagram and Replacement Parts List.
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 1W), keep the resistor 10mm 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 1MΩ and 5.2MΩ.
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 1.5K/10watt resistor in parallel with a 0.15uF 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
0.5mA.
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
1.5 Kohm/10W
To Instrument's
exposed
METALLIC PARTS
Good Earth Ground
such as WATER PIPE,
CONDUIT etc.
AC Volt-meter
IMPORTANT SAFETY NOTICE
0.15uF

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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 conflict 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
module 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
explosion 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 specified 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 flammable mixture.
Unless specified 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 fixtures specified in this
service manual.
CAUTION: Do not connect the test fixture ground strap to any
heat sink in this receiver.
Electrostatically Sensitive (ES) Devices
Some semiconductor (solid-state) devices can be damaged easily
by static electricity. Such components commonly are called
Electrostatically Sensitive (ES) Devices. Examples of typical ES
devices are integrated circuits and some field-effect transistors and
semiconductor "chip" components. The following techniques
should be used to help reduce the incidence of component
damage 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.
Alternatively, obtain and wear a commercially available
discharging wrist strap device, which should be removed to
prevent potential shock reasons prior to applying power to the
unit under test.
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
exposure 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 classified as "anti-static" can generate
electrical charges sufficient to damage ES devices.
5. Do not use freon-propelled chemicals. These can generate
electrical charges sufficient 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
electrically 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
replacement ES devices. (Otherwise harmless motion such as
the brushing together of your clothes fabric or the lifting of your
foot from a carpeted floor can generate static electricity
sufficient 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 1.25cm) 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 flows onto and around both the
component 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.
SERVICING PRECAUTIONS

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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 flat against the
circuit 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
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.
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
connections).
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
connected 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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1. Application range
This specification is applied to LP70 chassis.
2. Requirement for Test
Each part is tested as below without special appointment.
(1) Temperature : 25±5°C(77±9°F), CST : 40±5
(2) Humidity : 65%±10%
(3) Power : 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 20 minutes prior
to the adjustment.
3. Test method
(1) Performance : LGE TV test method followed
(2) Demanded other specification
Safety : CE, IEC Specification
EMC : CE, IEC
SPECIFICATION
NOTE : Specifications and others are subject to change without notice for improvement .
4. General TV Specification
No Item Specification Remark
1. Video input applicable system NTSC M,PAL M/N 3-SYSTEM
2. Receivable Broadcasting System NTSC M,PAL M/N 3-SYSTEM
3. Available Channel VHF : 2~13 3-SYSTEM
UHF : 14~69
CATV : 1~125
4. Input Voltage 100-240V~ / 50Hz, 60Hz
5. Market Central and South America
6. Active Screen Size 800.4 mm(diagonal) 31.51 inches 32LB3RS-TB
940.3 mm(diagonal) 37.02 inches 37LB3RS-TB
1067.308 mm (diagonal) 42.02 inches 42LB3RS-TB
7. Tuning System FVS 100 program
FS
8. Operating Environment 1) Temp : 0 ~ 40 deg
2) Humidity : 10 ~ 90 %RH
9. Storage Environment 1) Temp : -20 ~ 50 deg
2) Humidity : 10 ~ 90 %RH
10. Display LCD Module 32”/37” : AUO
42” : LPL

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5. General Specification
No Item Specification Remark
1 Panel 32”, 37”, 42" TFT WXGA LCD for 120Hz
2 Frequency range H : 31 ~ 61Khz
V : 56 ~ 75Hz PC Input
3 Control Function Contrast/Brightness
H-Position / V-Position
Tracking : Clock / Phase
Auto Configure
Reset
4 Component Jack Y/Pb/Pr : 2EA
(480i/576i/480p/576p/720p/1080i)
5 Power ON LED Power consumption
White ≤ 170W(32”)
≤ 200W(37”)
≤ 270W(42”)
Stand by RED ≤ 1W
6 LCD Module Outline 32” 760.0 x 450.0 x 48.0 (H)mm x (V)mm x (D)mm
Dimension 37” 877.0 x 516.8 x 55.5
42” 1006 x 610 x 56
Pixel Pitch 32” 0.1702 x 0.5107 x RGB
37” 0.200 x 0.600 x RGB
42” 0.227 x 0.681 x RGB
Pixel Format 1366 x 768 Pixels RGB strip arrangement
Coating Hard coating(3H), Anti-glare treatment of the front polarizer
Back Light 32” 20EEFL
37” 20EEFL
42” 20CCFL
6. Model Specification
No Item Specification Remark
1. Market Central and South America
2. Broadcasting system NTSC M,PAL M/N
3. Available Channel BAND NTSC
VHF/UHF 2~69
CATV 1~125
4. Receiving system Upper Heterodyne
5. SCART Jack(0EA) PAL, SECAM, NTSC 4 System : PAL, SECAM, NTSC, PAL60
6. Video Input (2EA)/Video Output(1) NTSC, PAL M/N
7. S-Video Input (1EA) NTSC, PAL M/N
8. Component Input (2EA) Y/Cb/Cr, Y/ Pb/Pr
9. RGB Input (1EA) RGB-PC
10. HDMI Input (2EA) HDMI-PC
HDMI-DTV
11. Audio Input (5 EA) PC Audio(1EA), Component (2EA), AV (2EA) L/R Input
12. Audio variable out(2EA) AV(1EA) ,Variable Audio Out(1EA)

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7. Component Video Input (Y, PB, PR)
No Resolution H-freq(kHz) V-freq.(kHz) Pixel clock(MHz) Remarks
1. 720*480 15.73 59.94 13.500 SDTV, DVD 480i(525I)
2. 720*480 15.75 60.00 13.514 SDTV, DVD 480i(525I)
3. 720*576 15.625 50.00 13.500 SDTV, DVD 576i(625I)
4. 720*480 31.47 59.94 27.000 SDTV 480p
5. 720*480 31.50 60.00 27.027 SDTV 480p
6. 720*576 31.25 50.00 27.000 SDTV 576p
7. 1280*720 44.96 59.94 74.176 HDTV 720p
8. 1280*720 45.00 60.00 74.250 HDTV 720p
9. 1280*720 37.50 50.00 74.25 HDTV 720p 50Hz
10. 1920*1080 33.72 59.94 74.176 HDTV 1080i
11. 1920*1080 33.75 60.00 74.250 HDTV 1080i
12. 1920*1080 28.125 50.00 74.250 HDTV 1080i 50Hz,
13. 1920*1080 67.432 59.94 148.35 HDTV 1080p
14. 1920*1080 67.5 60.00 148.5 HDTV 1080p
15. 1920*1080 56.25 50.00 148.5 HDTV 1080p 50Hz,
8. RGB Input (PC)
No Resolution H-freq(kHz) V-freq.(kHz) Pixel clock(MHz) Remarks
1 720*400 31.469 70.08 28.32 DOS
2. 640*480 31.469 59.94 25.17 VESA(VGA)
3 640*480 37.500 75.00 31.50 VESA(VGA)
4 800*600 37.879 60.31 40.00 VESA(SVGA)
5 800*600 46.875 75.00 49.50 VESA(SVGA)
6 832*624 49.725 74.55 57.28 Macintosh
7 1024*768 48.363 60.00 65.00 VESA(XGA)
8 1024*768 56.476 70.06 75.00 VESA(XGA)
9 1024*768 60.023 75.02 78.75 VESA(XGA)
10 1280*768 47.693 59.99 80.125 WXGA(42XGA,50”,60”)
11 1360*768 47.700 60.00 84.62 WXGA(42XGA,50”,60”)
12 1366*768 47.700 60.00 84.62 WXGA(42XGA,50”,60”)

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9. HDMI Input (PC)
No Resolution H-freq(kHz) V-freq.(kHz) Pixel clock(MHz) Remarks
1 720*400 31.469 70.08 28.32 DOS
2 640*480 31.469 59.94 25.17 VESA(VGA)
3 640*480 37.500 75.00 31.50 VESA(VGA)
4 800*600 37.879 60.31 40.00 VESA(SVGA)
5 800*600 46.875 75.00 49.50 VESA(SVGA)
6. 832*624 49.725 74.55 57.28 Macintosh
7 1024*768 48.363 60.00 65.00 VESA(XGA)
8 1024*768 56.476 70.06 75.00 VESA(XGA)
9 1024*768 60.023 75.02 78.75 VESA(XGA)
10 1280*768 47.693 59.99 80.125 WXGA(42XGA,50”,60”)
11 1360*768 47.700 60.00 84.62 WXGA(42XGA,50”,60”)
12 1366*768 47.700 60.00 84.62 WXGA(42XGA,50”,60”)
No Resolution H-freq(kHz) V-freq.(kHz) Pixel clock(MHz) Remarks
1. 720*480 31.47 59.94 27.000 SDTV 480P
2. 720*480 31.50 60.00 27.027 SDTV 480P
3. 720*576 31.25 50.00 27.000 SDTV 576P
4. 1280*720 44.96 59.94 74.176 HDTV 720P
5. 1280*720 45.00 60.00 74.250 HDTV 720P
6. 1280*720 37.50 50.00 74.25 HDTV 720P 50Hz
7. 1920*1080 33.72 59.94 74.176 HDTV 1080I
8. 1920*1080 33.75 60.00 74.250 HDTV 1080I
9. 1920*1080 28.125 50.00 74.250 HDTV 1080I 50Hz
10. 1920*1080 67.432 59.94 148.35 HDTV 1080p
11. 1920*1080 67.5 60.00 148.5 HDTV 1080p
12. 1920*1080 56.25 50.00 148.5 HDTV 1080p 50Hz
10. HDMI2 input ( DTV )

1. Application Range
This spec. sheet is applied to all of the LP70A chassis(H3-
High) manufactured at LG TV Plant all over the world.
2. Specification
1) Because this is not a hot chassis, it is not necessary to use
an isolation transformer. However, the use of isolation
transformer will help to protect test instruments.
2) Adjustment must be done in the correct sequence.
3) The adjustment must be performed at 25±5°C temperature
and 65±10% relative humidity if there is no specified
designation.
4) The input voltage of the receiver must be kept between
100-220V, 50/60Hz.
5) Before adjustment, execute Heat-Run for 30 minutes at RF
no signal
3. Adjustment items
3.1. PCB assembly adjustment items
OChannel memory
- Download the channel data from BOM to EEPROM by
using LGIDS.
OOption adjustment following BOM
- Tool Option1
- Tool Option2
- Area Option
1) Push the ADJ key in the Adjust Remote control.
2) Input the Option Number that was specified in the BOM,
into the Shipping area.
3) Select "Tool Option1/ Tool Option2/ Area Option" by using
D/E(CH+/-) key, and press the number key(0~9)
consecutively
ex) If the value of Tool Option1 is 7, input the data using
number key "7" (Fig. 1)
3.2. SET assembly adjustment items
OAuto AV1 Color Balance
OAdjustment of White Balance
OAuto Component Color Balance adjustment
- Standard equipment : MSPG925FA
OAuto RGB Color Balance adjustment
- Standard equipment : MSPG925FA
4. EDID
∆ Caution
* Use the proper signal cable for EDID Download
- Analog EDID : Pin3 exists
- Digital EDID : Pin3 exists
* Caution : - Never connect HDMI & DVI-D & DVI-A Cable at
the same time.
- Use the proper cables below for EDID Writing.
4.1. EDID Data
(1) ANALOG(256 Bytes )
OBLOCK1 (128BYTE)
(2) HDMI(256 Bytes )
OBLOCK0 (128BYTE)
OBLOCK1 (128BYTE)
0123456789ABCDEF
00 00 FF FF FF FF FF FF FF 1E 6D a b
10 c 010301462778EAD9B0A357499C25
20 11 49 4B A5 6E 80 31 40 01 01 01 01 45 40 01 01
30 61 40 01 01 01 01 1B 21 50 A0 51 00 1E 30 48 88
40 35 00 BC 88 21 00 00 1C 4E 1F 00 80 51 00 1E 30
50 40 80 37 00 BC 88 21 00 00 18 00 00 00 FD 00 38
60 4B 1F 3D 09 00 0A 20 20 20 20 20 20
70 D 00 e
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ADJUSTMENT INSTRUCTION
(Fig. 1)
For Analog EDID
D-sub to DVI-I
For Digital EDID
DVI-D to DVI-D
For HDMI EDID
DV-D to HDMI or HDMI to HDMI
Condition
GSM
Digital : 1
Digital : 2
Item
Manufacturer ID
Version
Revision
Data
1E6D
01
03
LP7Ax AUO 32 120Hz
S/W Version X.XX
UTT XX
Tool Option1 7
Tool Option2 161
Area Option 16
:
:00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F
00 00 FF FF FF FF FF FF 00 1E 6D a b
10 c 010380462778EAD9B0A357499C25
20 11 49 4B 81 00 80 31 40 01 01 01 01 45 40 01 01
30 61 40 01 01 01 01 1B 21 50 A0 51 00 1E 30 48 88
40 35 00 BC 88 21 00 00 1C 4E 1F 00 80 51 00 1E 30
50 40 80 37 00 BC 88 21 00 00 18 00 00 00 FC 00 4C
60 47 20 54 56 0A 20 20 20 20 20 20 20 d
70 D 01 e
00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F
80 02 03 23 F1 50 01 07 16 02 03 11 12 13 04 14 85
90 20 21 22 1F 10 23 09 07 07 83 01 00 00 65 03 0C
A0 00 10 00 01 1D 00 80 51 D0 1C 20 40 80 35 00 BC
B0 88 21 00 00 1E 8C 0A D0 8A 20 E0 2D 10 10 3E 96
C0 00 13 8E 21 00 00 18 8C 0A A0 14 51 F0 16 00 26
D0 7C 43 00 C4 8E 21 00 00 98 01 1D 80 18 71 1C 16
E0 20 58 2C 25 00 C4 8E 21 00 00 9E 00 00 00 00 00
F0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 e

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(2) HDMI(256 Bytes )
OBLOCK0(128BYTE)
OBLOCK0(128BYTE)
=> Detail EDID Options are below (a, b, c, d, e)
a. Product ID
b. Serial No : Controlled on production line
c. Month, Year : Controlled on production line:
ex) Monthly : '03' => '03'
Year : '2005' => '0F'
d. Model Name/Monitor Name
e. Checksum: Changeable by total EDID data
5. ADC Calibration
* Caution : System control RS-232C Host should be “PC” for
adjustment
- Press the FRONT-AV KEY on R/C for converting input mode
(Change RS-232C Host : pc, Band Rate : 115200bps)
5.1. Adjustment of AV
* Required Equipments
ORemote controller for adjustment
O802F Pattern Generator, Master (MSPG-925FA), etc.
OMSPG-925FA Pattern Generator (Which has Video
Signal: 100% Color Bar Pattern shown in Fig. 2)
=> Model : 202 / Pattern : 65 (PAL : CH)
Model : 207 / Pattern : 65 (NTSC-J)
(1) Method of Auto AV Color Balance
1) Press the FRONT-AV KEY on R/C for converting input
mode.
2) Input the Video Signal: 100% Color Bar signal into
AV2(MA/TA)
3) Set the PSM to Standard mode in the Picture menu.
4) Press INSTART key on R/C for adjustment.
5) Press the G(Vol.+) key to operate the set, then it
becomes automatically.
6) Auto-RGB OK means the adjustment is completed.
(2) Requirement
OThis AV color balance adjustment should be performed
before White Balance Adjustment.
5.2. Adjustment of Component.
* Required Equipments
ORemote controller for adjustment
O802F Pattern Generator, Master (MSPG-925FA), etc.
OMSPG-925FA Pattern Generator
(Which has 720p@50Hz YPbPr signal : 100% Color Bar
Pattern shown in Fig. 2 )
=> Model: 215 / Pattern: 65
O It is very import to use correct adjustment pattern like Fig.2.
- If Minimum Black Level and/or Maximum White Level
is not correct, Select 100% Color Bar Pattern.
(1) Method of Auto Component Color Balance
1) Input the Component 720p 100% Color Bar(MSPG-
925FA model:215, pattern:65) signal into Component.
(ZA : component , TA/MA : component 1 or 2)
2) Set the PSM to Standard mode in the Picture menu.
3) Press the INSTART key on R/C for adjustment.
4) Press the G(Vol. +) key to operate the set , then it
becomes automatically.
5) Auto-RGB OK means the adjustment is completed.
Model Name Product ID Product ID
Dec Hex EDID table
32LB3RS-MB 30120(A) 30120 75A8 A875
30121(D) 30121 75A9 A975
MSPG-
925FA
AV ADC Condition
PAL NTSC
CH model:AV3 MA model:AV1
Model:202(PAL-BGDHI) Model:201(NTSC-J)
Pattern 65 * 100% Color Bar
Component
Model : 215
(720p@60Hz)
RGB
Model : 60
(1024x768
@60H)
Model Name
LGTV 00 00 00 FC 00 33 32 4C 42 33 52 53 2D 4D 41 0A 20 20
<Fig. 2>
00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F
00 00 FF FF FF FF FF FF 00 1E 6D a b
10 C 010380462778EAD9B0A357499C25
20 11 49 4B 81 00 80 31 40 01 01 01 01 45 40 01 01
30 61 40 01 01 01 01 1B 21 50 A0 51 00 1E 30 48 88
40 35 00 BC 88 21 00 00 1C 4E 1F 00 80 51 00 1E 30
50 40 80 37 00 BC 88 21 00 00 18 00 00 00 FC 00 4C
60 47 20 54 56 0A 20 20 20 20 20 20 20 d
70 D 01 e
00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F
80 02 03 23 F1 50 01 07 16 02 03 11 12 13 04 14 85
90 20 21 22 1F 10 23 09 07 07 83 01 00 00 65 03 0C
A0 00 20 00 01 1D 00 80 51 D0 1C 20 40 80 35 00 BC
B0 88 21 00 00 1E 8C 0A D0 8A 20 E0 2D 10 10 3E 96
C0 00 13 8E 21 00 00 18 8C 0A A0 14 51 F0 16 00 26
D0 7C 43 00 C4 8E 21 00 00 98 01 1D 80 18 71 1C 16
E0 20 58 2C 25 00 C4 8E 21 00 00 9E 00 00 00 00 00
F0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 e

5.3 Adjustment of RGB
* Required Equipments
O Remote controller for adjustment
O 802F Pattern Generator, Master (MSPG-925FA), etc.
O MSPG-925FA Pattern Generator
(Which has XGA [1024x768] 60Hz PC Format output
signal : 100% Color Bar Pattern shown in Fig. 2 )
O It is very import to use correct adjustment pattern like Fig.2.
- If Minimum Black Level and/or Maximum White Level
is not correct, Select 100% Color Bar Pattern.
(1) Method of Auto RGB Color Balance
1) Input the PC 1024x768 @ 60Hz with 100% color bar
pattern like Fig.2. into RGB.
(Ex. MSPG-925FA, model:60, pattern:65)
2) Set the PSM to Standard mode in Picture menu.
3) Press the INSTART key on R/C for adjustment.
4) Press the G(Vol. +) key operate To set , then it becomes
automatically.
5) Auto-RGB OK means adjustment is completed.
6. White Balance
<Notice>
- Before white balance,press the In-start key 2times and do
the reset like Fig1.
- Use the cortez inner pattern(216 gray pattern)
- To enter White-balance mode,press the IN-START key
2times.
* Caution: System control RS-232 Host should be “PC” for
adjustment.
* Test Equipment
Color Analyzer (CA-110)
PC(For communication through RS-232C)
=> UART Baud rate : 115200
Pattern Generator (MSPG-925FA etc.)
* Color Temperature & Color Coordinates Setting
When adjusting the Color Temperature of LCD, Color
Analyzer CA-210(Matrix should be corrected through CH9
of CS-1000) should be used.
Adjust the Color Temperature based below adjustment
color coordinates.
Even if CH9 of CA-210 is corrected with Matrix, there may
be many character of Module and Filter.
Therefore Refer to the below Color Coordinates Target.
OStandard Color Temperature & Color Coordinates Using
CS-1000
OLCD Color Temperature & Color Coordinates Target Using
CA-210(CH 9)
* Target Value of Brightness, Color Coordinates, Color
Temperature
- Brightness : High Light : MIN 240Cd/m2(32 WXGA, AUO)
- Color-Coordinate : High Light
: Cool : X ; 0.276 ±0.002 , Y ; 0.283 ±0.002
Warm : X ; 0.313 ±0.002, Y ; 0.329 ±0.002
- Color Temperature : 11,000∞K±500ºK(Cool), 6,500ºK
±500ºK(Warm)
6.1. Manual white Balance (Inner pattern)
1) Execute CA-210(9CH) Zero Calibration.
2) Execute the SET Heat Run for 30minutes
3) Use cortez inner pattern as below Fig. 4, Supply 216Level
(85 IRE) full screen pattern
4) Enter the White Balance adjustment mode by pressing the
INSTART key twice(White Balance) on R/C.
5) Stick sensor to center of the screen and select each items
(Red/Green/Blue Gain and Offset) using °„/°Â(CH £´/£≠)
key on R/C..
6) Adjust with R / G / B Gain using ¢∏/¢∫(VOL £´/£≠) key on
R/C.
7) Adjust it until color coordination becomes as below.
* Color Temperature : Cool, Medium, Warm
One of R/G.B Gain should be fixed at 80 and adjust two
Gain Value with decreasing the Default values from 80.
- When R Gain is Fixed at Default value(80)
Adjust G gain and B gain with decreasing Default values
from 80
- When B Gain is Fixed at Default value(80)
Adjust R gain and G gain with decreasing Default values
from 80
- When G Gain is Fixed at Default value(80)
Adjust R gain and B gain with decreasing Default values
from 80
R/G/B Gain and R/G/B Offset Default Value
Red Gain : 80, Green Gain : 80, Blue Gain : 80
- 12 -
(Fig. 1)
White Balance(Hex)
Color Temp. Cool
Red Gain. 80
Green Gain. 80
Blue Gain. 80
Red Offset 80
Green Offset 80
Blue Offset 80
Reset GGTo set
216 Level (85 IRE)
Color Temperature Temp x y
Cool 11,000k 0.276 0.283
Warm 6,500k 0.313 0.329
Mode Color Coordinates Temp ∆uv
XY
Cool 0.276±0.002 0.283±0.002 11,000K 0.000
Warm 0.313±0.002 0.329±0.002 6,500K 0.003

6.2 Auto white Balance
* Input Select Data
RF(10), AV1~4(20,21,22,23), SAV(30), COMP(40),
DVI(50 or 60), HDMI(90)
* Command Set (SET ID : 0-> ALL , 1~99 -> each SET)
- 13 -
Contents CMD SET ID VAL Remark
POWER ON/OFF KA(ka) 0~99 0~1 0: OFF, 1:ON
MAIN INPUT XB(xb) 0~99 10~90 RF(10), AV1~4 (20,21,22,23)
SAV(30), COMP(40),
RGB(50 or 60), HDMI(90)
ARC KC(kc) 0~99 1~8 4:3; 16:9; SPECTACLE; ZOOM;
ORIGINAL; 14:9; FULL
SCREEN MUTE KD(kd) 0~99 0~1 1: MUTE, 0: MUTE OFF
AUDIO MUTE KE(ke) 0~99 0~1 1: MUTE, 0: MUTE OFF
VOLUME KF(kf) 0~99 0~64 0: 0, 64 : 100 (Hexadecimal)
CONTRAST KG(kg) 0~99 0~64 0: 0, 64 : 100 (Hexadecimal)
BRIGHTNESS KH(kh) 0~99 0~64 0: 0, 64 : 100 (Hexadecimal)
COLOR KI(ki) 0~99 0~64 0: 0, 64 : 100 (Hexadecimal)
TINT KJ(kj) 0~99 0~64 0: R50, 64:G50(Hexadecimal)
SHARPNESS KK(kk) 0~99 0~64 0: 0, 64 : 100 (Hexadecimal)
OSD ON/OFF KL(kl) 0~99 0~1 0: OFF, 1: ON
CHILD LOCK KM(km) 0~99 0~1 1: LOCK, 0: OFF
PIP MODE KN(kn) 0~99 0~3 PIP_OFF, PIP, DW1, DW2
PIP ARC KO(ko) NOT USED
PIP POSITION KQ(kq) NOT USED
TREBLE KR(kr) 0~99 0~64 0:0, 64:100
BASS KS(ks) 0~99 0~64 0:0, 64:100
BALANCE KT(kt) 0~99 0~64 0:L50, 64:R50
COLOR TEMP. KU(ku) 0~99 0~3 COOL, NORMAL, WARM, USER
RED LEVEL KV(kv) 0~99 0~50 0 : -40, 50 : 40
GREEN LEVEL KW(kw) 0~99 0~50 0 : -40, 50 : 40
BLUE LEVEL K$(k$) 0~99 0~50 0 : -40, 50 : 40
PIP INPUT XY(xy) 0~99 10~90 RF(10), AV1~4(20,21,22,23)
SAV(30), COMP(40),
DVI(50 or 60), HDMI(90)
CURRENT STATE KZ(kz) 0~99 FF ACK is 0, there is Signal
ACK is 1, there is No Signal
ACK is 2, power Off Status
WHITE BALANCE “J”(A~F)
RED GAIN JA 0~99 0~3F 0:0, 3F:3F , FF: Current State
GREEN GAIN JB 0~99 0~3F 0:0, 3F:3F , FF: Current State
BLUE GAIN JC 0~99 0~3F 0:0, 3F:3F , FF: Current State
RED OFFSET JD 0~99 0~3F 0:0, 3F:3F , FF: Current State
GREEN OFFSET JE 0~99 0~3F 0:0, 3F:3F , FF: Current State
BLUE OFFSET JF 0~99 0~3F 0:0, 3F:3F , FF: Current State
AUTO CONFIG. JU 0~99 01 The state is not Auto Adjust
Condition Send NACK
TUNER CONTROL
SELECT PR. MA 0~99 0~C7 0: Pr. 0, C7: Pr.199
SELECT SUB PR. MB 0~99 0~C7 0: Pr. 0, C7: Pr.199
FACTORY IR
IR CODE MC 0~99 F0 -IR CODE 0, BITMASK = 0X01
ADC Calibration
Red,Blue,Green Ja,Jb,Jc 00<E0
Min:00 Initial Value:
Gain
Max:fe red -0x79
blue -0x6f
green -0x80
Red,Blue,Green Jd,Je,Jf 00<90
Min:00 Initial Value
offset
Max:fe red -0x80
blue -0x82
green -0x80
command command Set ID Data
1 2 MODE
Input Select x b 00 00h DTV-Air
01h Cable
10h RF-Air
11h Cable
20h AV1
21h AV2
40h COMP1
41h COMP1
60h RGB-PC
90h HDMI
Min Max INIT
R-Gain_Normal j a 00 00h 80h 80h
G-Gain_Normal j b 00 00h 80h 80h
B-Gain_Normal j c 00 00h 80h 80h
R-Gain_Warm j d 00 00h 80h 80h
G-Gain_Warm j e 00 00h 80h 80h
B-Gain_Warm j f 00 00h 80h 80h
R-Gain_Cool j g 00 00h 80h 80h
G-Gain_Cool j h 00 00h 80h 80h
B-Gain_Cool j i 00 00h 80h 80h
R-Offset_Normal l j 00 00h 80h
G-Offset_Normal l k 00 00h 80h
B-Offset_Normal l l 00 00h 80h
R-Offset_Warm l m 00 00h 80h
G-Offset_Warm l n 00 00h 80h
B-Offset_Warm l o 00 00h 80h
R-Offset_Cool l p 00 00h 80h
G-Offset_Cool l q 00 00h 80h
B-Offset_Cool l r 00 00h 80h
COLOR TEMP. k u 00 00h 03h (Cool, Normal,
Warm, User)
Inner pattern w b 00 00 W/B Adjustment start
signal 10 Using Internal Pattern
ff
W/B Adjustment Completion

7. Detail list of SVC option data
- 14 -
Tool Option1 Maker LPL/AUO/CMO/CPT
Inch 32/37/42/47/
Tool LB3R/LB5R/LB7R/LC7R/LY3R
Tuner Num. 1 Tuner/2 Tuner
EYE 0/1
INDEX 0/1
VFD 0/1
HDMI Type(A) 1-HDMI/2HDMI
Side AV 0/1
BOOST 0/1
Tool Option2 Reserved 0/1
Reserved 0/1
Reserved 0/1
Area Option1 LANG CSA/North/Taiwan
Option Default Lang. CSA (English, Spanish, Portugal)
North (English, Spanish, French)
Taiwan (English, Taiwan)
Option2 SYS 3-SYS/4-SYS/7-SYS/NTSC
System Control1
System Control2
System Control3
Power-off History
Module Control
Fan Control
Option Detail list Data

- 15 -
8. Shipping Conditions
No Item Condition Remark
1 Power Off
2 Volume Level 30
3 Main Picture Input TV
4 Main Last Channel Pr 01
5 Mute Off
6 ARC 16 : 9
7 SET UP Auto Tuning
Manual Tuning
Favorite Programme
8 Picture Picture Mode Dynamic
Dynamic Contrast 100
Brightness 50
Colour 50
Sharpness 50
Color Temperature Normal
XD Auto
Advanced Cinema Off / Black level Auto
Aspect Ratio 16 : 9
Picture Reset To set
Screen Variable by each mode
XD Demo To Start
9 AUDIO Sound Mode Standard
Off
Auto Volume Off
Balance 0
TV Speaker On
10 Time Clock --:-- User control
Off time Off
On time Off
Sleep time Off
Auto sleep Off
11 OPTION Language English Area management
Input Label To Set
SIMPLINK On
Key lock Off
Set ID 1
Caption/Text Off

1. Power Board
- The whole flowchart which it follows in voltage output stat
- 16 -
TROUBLESHOOTING
2. Check the interface signal condition.1. Check the Power off condition.
No
Yes No
Yes Yes
4. Check the 5V Monitor signal circuit.
3. Check the St_by 5V signal circuit.
Yes Yes
5. Check the VSC RL_ON signal.
Yes
Doesn’t
the screen whole
come out?
Is it with
power off condition
identical?
Is the interface
signal operated?
No
No
No
Yes No
No
No
Yes
Yes
Doesn’t the
low pressure output
come out?
Doesn’t the
St-by 5V signal
come out?
Doesn’t the
5V monitor signal
come out?
Doesn’t the
VSC signal RL_ON
come out?
6. Check the VSC low pressure output.
Yes
Doesn’t the
VSC Low pressure Output
come out?
8. Check the Vs, Va voltage output circuit.
Yes
No Doesn’t the
Va, Va voltage output
come out?
7. Check the VSC Vs_ON signal.
Manufacture enterprise
meaning of a passage
No
9. Check the power board
output high tension circuit.
No
10. Check the Z B/D
Module output circuit.
No
11. Check the Y B/D
Module output circuit.
Yes
Doesn’t the
VSC signal Vs-ON
come out?
Doesn’t the
high tension output
come out?
High tension
output voltage drop
it occurs?
When
remove the Y,Z B/D
Module input connector, power
Board high tension output
voltage drop it
occurs?
No When
remove the Y B/D
Module input connector,
output voltage drop
it occurs?
No When
remove the Z B/D
Module input connector,
output voltage drop
it occurs?
Start check

- 17 -
2. VSC Board
2-1. No power
(1) Symptom
1) Minute discharge doesn’t occur at module.
2) Front LED doesn’t come into action.
(2) Check following
Yes
No
Is the plug in power
cord inserted? Plug a power cord.
Yes
No
Is the Line Filter and
PSU connected? Connect a cable.(SC101)
Yes
No
Is the fuse(F101)
of PSU normal? Replace the fuse.
Yes
No
Is it
that PSU and 13pin
cable in VSC board
connected?
Connect the 13pin cable.
After the cable connect is removed to PSU (except the
CN101 connection cable), authorizes the AC voltage
marking on manual.
When ST-by 5V doesn’t operate, replace Power Board.

- 18 -
2-2. No Raster
(1) Symptom
1) Doesn’t minute discharge at module.
2) It maintains the condition where the front LED is normal.
(2) Check following
1. Check the Power board.
1. Check the Main board.
Reconnect the link cable in P1300 or P1301.
1. Check the inverter connector.
2. Check the LCD module.
On
Off No
No
1. Check the Main board.
1. Check the Main board.
Yes
Yes
Yes
1. Change the Power board.
Is the inverter
On or Off?
Is the inverter
24V on power board
normal?
No No
Is the VSC
Board normal?
Is the
P1300/1301’s output
normal?
‘Inverter_On’
Signal is High of 5th pin
in P1000 on Main
board?
Yes
Yes
No
No
Is the link cable
normal?
Is the Power
Board normal?
No
Is output
the normality Low
/High voltage except
stand-by 5V?

- 19 -
2-3. In case of occur strange screen into specific model
(1) In case of doesn’t display the OSD
1) Symptom
- LED is White.
- The minute discharge work continuously
2) Check following
1. Cable insert well.
Yes
Yes
No
1. Replace FIL8668/8662 IC(IC800).
No
1. Replace VSC B/D.
1. Replace cable.
1. Replace LCD module.
Is the LVDS
cable normal? Is the LVDS cable
connected well?
Yes
No
No
Is the VSC
Board normal?
Is the LCD
module normal?
No
Is IC800’s
operation
normal?
Yes
(2) In case of doen’t work normally at specific input mode.
1) Symptom
-> The screen doen’t work normally at specific input mode.
(RF, AV, Component, RGB, HDMI)
2) Check following
- Check the all input mode of all input display normally.
- Check the PIP and Double Window if it display normally.(Re-Check it Swap)
3) In case of unusual situation from RF mode
1. Cable insert well.
Yes
Yes
No
1. Replace Tuner.
No
1. Replace the IC611.
1. Replace the IC800.
Is the Tuner
cable normal? Is the Tuner cable
connected well?
Is the
input voltage, IIC
communication and CVBS
output normal?
Is the
input voltage, IIC
communication and HV
sync normal?
Is the
input voltage, IIC
communication and HV
sync normal?
Yes
No
No No
Is the IC611
normal?
Is the IC800
normal?
Yes
Yes

- 20 -
4) When set doesn’t display normally at RF, AV mode.
1. Replace IC611.
No
Yes
Is the IC611
normal?
No
No
Is the IC800
normal?
5) When set doesn’t display normally at Component, RGB mode.
6) When set doesn’t display normally at HDMI mode.
Is the
input voltage, IIC
communication and HV
sync normal?
1. Replace IC800.
No
Is the
input voltage, IIC
communication and HV
sync normal?
1. Replace IC1200.
No
Yes
Is the IC1200
normal?
No
No
Is the IC800
normal?
Is the
input voltage, IIC
communication and HV
sync normal?
1. Replace IC800.
No
Is the
input voltage, IIC
communication and HV
sync normal?
No
Is the IC800
normal? 1. Replace IC800.
No
Is the
input voltage, IIC
communication and HV
sync normal?