LG 42LP1R-ME User manual

LCD TV
SERVICE MANUAL
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
CHASSIS : ML-051A
MODEL : 42LP1R-ME
website:http://biz.LGservice.com
e-mail:http://www.LGEservice.com/techsup.html

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CONTENTS
CONTENTS .............................................................................................. 2
PRODUCT SAFETY ..................................................................................3
SPECIFICATION........................................................................................6
ADJUSTMENT INSTRUCTION................................................................11
TROUBLE SHOOTING............................................................................16
BLOCK DIAGRAM...................................................................................19
WIRING DIAGRAM..................................................................................20
EXPLODED VIEW .................................................................................. 21
EXPLODED VIEW PARTS LIST..............................................................22
REPLACEMENT PARTS LIST ............................................................... 23
SVC. SHEET ...............................................................................................

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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 1MΩand 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
circuitboard 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 ML-051A chassis.
2. Requirement for Test
Testing for standard of each part must be followed in below
condition.
(1) Temperature: 25°C ± 2°C
(2) Humidity: 65% ± 10%
(3) Power: Standard input voltage (AC 100-240V, 50/60Hz)
(4) Measurement must be performed after heat-run more than
30min.
(5) Adjusting standard for this chassis is followed a special
standard.
SPECIFICATION
NOTE : Specifications and others are subject to change without notice for improvement .
3.General Specification(TV)
No Item Specification Remark
1. Video input applicable system PAL-D/K, B/G, I, NTSC-M, SECAM
NTSC 4.43
2. Receivable Broadcasting System 1) PAL/SECAM BG (ZE/TE)
2) PAL/SECAM DK EU/Non-EU
3) PAL I/I (PAL Market)
4) SECAM L/L' 4) Only ZE
5) PAL-N/M 5),6) South America Market
6) NTSC M
7) Except South America NTSC Market (ME)
3. RF Input Channel VHF : E2 ~ E12 PAL
UHF : E21 ~ E69
CATV : S1 ~ S20
HYPER : S21~ S47
L/L' : B, C, D FRANCE
VHF : 2~13 NTSC
UHF : 14~69
CATV : 1~125
VHF Low : 1 ~ M10 JAPAN
VHF High : 4~S22
UHF : S23~62
4. Input Voltage AC 100 ~ 240 V/50Hz, 60Hz
5. Market Worldwide
6. Picture Size 1067.308mm 42.02 inch
7. Tuning System FVS 100 program PAL,200 PR.(Option)
FS NTSC
8. Operating Environment 1) Temp : 0 ~ 40 deg
2) Humidity : 10~90 %RH
9. Storage Environment 3) Temp : -20 ~ 50 deg
4) Humidity : 10~90 %RH
10. Display LCD Module LPL

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4. General Specification
No Item Specification Unit Remark
1 Panel 42" TFT WXGA LCD
2 Frequency range H : 31 ~ 61Khz PC Input
V : 56 ~ 75Hz
3 Control Function 1) Contrast/Brightness
2) H-Position / V-Position
3) Tracking : Clock / Phase
4) Auto Configure
5) Reset
4 Component Jack 1 : Y ZE(SIDE)
3 : Pb TE/ME(REAR, SIDE)
5 : Pr
7 : Line1 Ready 480i, 480p
9 : LINE2 720p, 1080i
11: LINE3
13: Line3 Ready
D4 Jack 2 : Y GND JAPAN Only
(525i,525p,750p,1125i) 4 : Pb GND
6 : Pr GND
8 : LINE1
10:Line2 Ready
12:SWITCH GND
14: SWITCH
5 H/V-Sync Video Power consumption LED
Power ON - -
≤ max 230W W Green
Stand by - -
≤ 3.0W W Red
DPMS Mode ON/OFF OFF
≤ 30W W Green
Power off - - - W *
6 LCD Module Type Size LPL 1006 x 610 x 56 mm (H) x (V) x (D)
Pixel Pitch LPL 0.227 x 0.681 x RGB
Pixel Format 1366 horiz. By 768 vert. Pixels
RGB strip arrangement
Coating Hard coating(3H), Anti-glare
treatment of the front polarizer,
Back Light LPL 20CCFL

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5.Optical Feature(LCD Module)
6.Component Video Input (Y, PB, PR)
No Specification Proposed
Resolution H-freq(kHz) V-freq(Hz)
1. 640x480 15.73 60 SDTV, DVD 480i TE, ME
2. 640x480 15.63 59.94 SDTV, DVD 480i TE, ME
3. 720x480 31.47 59.94 480p TE, ME
4. 720x576 15.625 50.00 SDTV, DVD 625 Line TE, ME
5. 720x576 31.25 50.00 HDTV 576p TE, ME
6. 1280x720 45.00 60.00 HDTV 720p TE, ME
7. 1280x720 44.96 59.94 HDTV 720p TE, ME
8. 1920x1080 31.25 50.00 HDTV 1080i TE, ME
9. 1920x1080 33.75 60.00 HDTV 1080i TE, ME
10. 1920x1080 33.72 59.94 HDTV 1080i TE, ME
7. PC INPUT Mode Table
No Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) Proposed
Analog RGB, Digital RGB
1 720x400 31.468 70.8 28.321
2 640x480 31.469 59.94 25.17 VESA
37.684 75.00 31.5 VESA
3 800x600 37.879 60.31 40.00 VESA
46.875 75 49.5 VESA
4 832x624 49.725 74.55 57.283
5 1024x768 48.363 60.00 65.00 VESA(XGA)
56.47 70.00 75.00 VESA(XGA)
60.123 75.029 78.75 VESA(XGA)
6 1280x768 47.776 59.870 79.50 VESA(WXGA)
7 1360x768 47.720 59.799 84.75 VESA(WXGA)
8 1366x768 47.720 59.799 84.75 Supported
9 720x576 31.25 50.00 HDTV 576p ZE, TE
10 1280x720 45.00 50.00 HDTV 720p ZE, TE
11 1280x720 44.96 59.94 HDTV 720p TE, ME
12 1920x1080 31.25 50.00 HDTV 1080i ZE, TE
13 1920x1080 33.75 60.00 HDTV 1080i TE, ME
14 1920x1080 33.72 59.94 HDTV 1080i TE, ME
No Item Specification Remark
Min Typ Max
1 Viewing Angle R/L, U/D 178,178
<CR
≥ 10>
2 Luminance Luminance (cd/m2) 500 Typical
Variation 1.3 MAX / MIN
3 Contrast Ratio CR 300 400 All white / All black
(All white/All Black) CRD (With Al) 700 1000
4 CIE Color Coordinates White Wx 0.285 LPL
Wy 0.293
RED Xr 0.640
Yr Typ. 0.341 Typ.
Green Xg -0.03 0.287 +0.03
Yg 0.610
Blue Xb 0.146
Yb 0.069

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8. HDMI INPUT Mode Table
9. Mechanical specification
<Table 1> Scart Arrangement 1.(Full Scart)
Pin Signal Signal Level Impedance
1 Audio Output B (right) 0.5 Vrms < 1
2 Audio Input B (right) 0.5 Vrms > 10
3 Audio Output A (left) 0.5 Vrms < 1
4 Ground (audio) - -
5 Ground (blue) - -
6 Audio input A (left) 0.5 Vrms > 10
7 Blue input 0.7 V 75
8 Function Select (AV control) High (9.5 - 12V) - AV Mode
Mid (5 - 8V) - Wide Screen
Low (0 - 2V) - TV Mode > 10
9 Ground (Green) - -
10 Comms Data 2
11 Green input 0.7 V 75
12 Comms Data 1
13 Ground (Red) - -
14 Ground (Blanking) - -
15 Red input 0.7 V 75
16 RGB Switching Control High (1 - 3V) - RGB
Low (0 - 0.4V) - Composite 75
17 Ground (Video input & Output) - -
18 Ground (RGB Switching Control) - -
19 Video output (Composite) 1V including sync 75
20 Video input (Composite) 1V including sync 75
21 Common ground (Shield) - -
No Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) Proposed
Analog RGB, Digital RGB
1 720x400 31.468 70.8 28.321
2 640x480 31.469 59.94 25.17 VESA
37.684 75.00 31.5 VESA
3 800x600 37.879 60.31 40.00 VESA
46.875 75 49.5 VESA
4 832x624 49.725 74.55 57.283
5 1024x768 48.363 60.00 65.00 VESA(XGA)
56.47 70.00 75.00 VESA(XGA)
60.123 75.029 78.75 VESA(XGA)
6 1280x768 47.776 59.870 79.50 VESA(WXGA)
7 1360x768 47.720 59.799 84.75 VESA(WXGA)
8 1366x768 47.720 59.799 84.75 Supported
9 720x576 31.25 50.00 HDTV 576p(HDCP) ZE, TE
10 1280x720 45.00 50.00 HDTV 720p(HDCP) ZE, TE
11 1280x720 44.96 59.94 HDTV 720p(HDCP) TE, ME
12 1920x1080 31.25 50.00 HDTV 1080i(HDCP) ZE, TE
13 1920x1080 33.75 60.00 HDTV 1080i(HDCP) TE, ME
14 1920x1080 33.72 59.94 HDTV 1080i(HDCP) TE, ME

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<Table 2> Scart Arrangement 2.(Half Scart)
Pin Signal Signal Level Impedance
1 Audio Output B (right) 0.5 Vrms < 1
2 Audio Input B (right) 0.5 Vrms > 10
3 Audio Output A (left) 0.5 Vrms < 1
4 Ground (audio) - -
5 Ground (blue) - -
6 Audio input A (left) 0.5 Vrms > 10
7- - -
8 Function Select (AV control) High (9.5 - 12V) - AV Mode
Mid (5 - 8V) - Wide Screen
Low (0 - 2V) - TV Mode > 10
9 Ground (Green) - -
10 Comms Data 2
11 - - -
12 Comms Data 1
13 Ground (Red) - -
14 Ground (Blanking) - -
15 Red input
16 - - -
17 Ground (Video input & Output) - -
18 - - -
19 Video output (Composite) 1V including sync 75
20 Video input (Composite) 1V including sync 75
21 Common ground (Shield) - -

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ADJUSTMENT INSTRUCTION
1. Application Range
This spec. sheet is applied to all of the ML-051A chassis
(TORNADO) manufactured at LG TV Plant
2. Specification.
2.1 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.
2.2 Adjustment must be done in the correct sequence.
2.3 The adjustment must be performed at 25±5°C
temperature and 65±10% relative humidity if there is no
specified designation.
2.4 The input voltage of the receiver must be kept between
100~220V, 50/60Hz.
2.5 Before adjustment, execute Heat-Run for 30 minutes at
RF no signal.
3. 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
3.1 Data
3.1.1 ANALOG(128Bytes)
3.2.2 DIGITAL(128Bytes)
3.2.3 EDID FOR HDMI(256Bytes)
3.2.4 Detail EDID Options are below(a, b, c, d, e)
a. Product ID
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
10 01 03 80 46 27 78 EA D9 B0 A3 57 49 9C 25
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 FC 00 33
60 0A 20 20 20 00 00 00 FD
70 00 38 4B 1F 3D 09 00 0A 20 20 20 20 20 20 00
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
10 01 03 80 46 27 78 EA D9 B0 A3 57 49 9C 25
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 FC 00 33
60 0A 20 20 20 00 00 00 FD
70 00 38 4B 1F 3D 09 00 0A 20 20 20 20 20 20 01
00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F
00 02 03 21 D1 46 85 04 02 01 03 00 23 09 07 07 23
10 09 07 07 23 09 07 07 83 01 00 00 65 03 0C 00 10
20 00 01 1D 00 80 51 D0 1C 20 40 80 35 00 BC 88 21
30 00 00 1E 8C 0A D0 8A 20 E0 2D 10 10 3E 96 00 13
40 8E 21 00 00 18 2A 12 00 10 41 43 17 20 28 60 35
50 00 00 00 32 00 00 1C 01 1D 80 18 71 1C 16 20 58
60 2C 25 00 C4 8E 21 00 00 9E 00 00 00 00 00 00 00
70 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 DB
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
10 01 03 01 46 27 78 EA D9 B0 A3 57 49 9C 25
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 00 00 00 FC
70 0A 20 20 20 00
No Item Content Hexadecimal
1 Manufacturer ID GSM 1E6D
2 Version Digital 1 01
3 Revision Digital 3 03
a
e
e
c
c
c
d
d
e
d
b
ab
a b
Model name Product ID Product ID
Dec Hex
EDID Table
26LX2R 22039(A) 22039(A) 5617 1756
22040(A) 22040(D) 5618 1856
26LX1R 22043(A) 22043(A) 561B 1B56
22044(A) 22044(D) 561C 1c56
32LX2R 30041(A) 30041(A) 7559 5975
30042(D) 30055(D) 755A 5A75
32LX1R 30055(A) 30056(A) 7567 5975
30056(D) 30042(D) 7568 5875
32LP1R 30039(A) 30039(A) 7557 5775
30040(D) 30040(D) 7558 5875
37LP1R 30043(A) 30043(A) 755B 5B75
30044(D) 30044(D) 755C 5C75
42LP1R 40013(A) 40013(A) 9C4D 4D9C
40014(D) 40014(D) 9C4E 4E9C

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b. Serial No : Controlled on production line
c. Month, Year : Controlled on production line
d. Model Name(Hex) :
e. Checksum: ChangeSable by total EDID data
4. ADC Calibration
#Caution : System control RS-232 Host should be "PC" for
adjustment.
Before AV ADC Calibration, execute the "Panel
size selection"
For DVI ADC calibration, Have to use the cable D-
Sub to DVI-I shown in FIG.A
4.1 Adjustment of RF/AV/S-VIDEO
* Required Equipments
- Remote controller for adjustment
- MSPG-925F Pattern Generator(Which has Video Signal :
75% Color Bar Pattern shown in Fig.1)
=> Model:202 / Pattern:32(PAL:ZE, TE)
Model:207 / Pattern :32(NTSC-J:ME)
4.1.1 Method of Auto RF/AV/S-Video Color Balance
1) Input the Video Signal : 75% Color Bar signal into
AV3(ZE), AV1(TE), VIDEO1(ME)
2) Set the PSM to Standard mode in the Picture menu.
3) Press ADJ key on R/C for adjustment.
4) Press the (Vol. +) key to operate the set, then it
becomes automatically.
5) Auto-RGB OK means the adjustment is completed.
4-2 Adjustment of Component.
* Required Equipments
- Remote controller for adjustment
-MSPG-925F Pattern Generator => Model:215 /
Pattern:33
(Which has 720p YPbPr output Pattern shown in Fig.2)
4.2.1 Method of Auto Component Color Balance
1) Input the Component 720p 100% Color Bar(MSPG-925F
model:215 pattern:33) signal into Component.
(ZE:Component, TE/ME:Component 1or 2)
2) Set the PSM to Standard mode in the Picture menu.
3) Press the ADJ key on R/C for adjustment.
4)Press the (Vol. +) key to operate the set, then it
becomes automatically.
5)Auto-RGB OK means the adjustment is completed.
Model Name Model Name(HEX)
26LX2R-ZE 32364C5832522D5A45
26LX2R-TE 32364C5832522D5445
26LX2R-ME 32364C5832522D4D45
26LX1R-ZE 32364C5831522D5A45
26LX1R-TE 32364C5831522D5445
26LX1R-ME 32364C5831522D4D45
32LX2R-ZE 33324C5832522D5A45
32LX2R-TE 33324C5832522D5445
32LX2R-ME 33324C5832522D4D45
32LX1R-ZE 33324C5831522D5A45
32LX1R-TE 33324C5831522D5445
32LP1R-ZE 33324C5031522D5A45
32LP1R-TE 33324C5031522D5445
37LP1R-ZE 33374C5031522D5A45
37LP1R-TE 33374C5031522D5445
37LP1R-ME 33374C5031522D4D45
42LP1R-ZE 34324C5031522D5A45
42LP1R-TE 34324C5031522D5445
42LP1R-ME 34324C5031522D4D45
ADC RF/AV/S-VIDEO Component DVI(RGB)
MSPG925F PAL NTSC Model:215(720p) Model:39
Input AV3-ZE VIDEO-ME Pattern:33 (1024x768 75Hz)
Select AV1-TE
*720p 100% Color Bar Pattern:18
Model:202(Pal-BGDHI)
Model:207(NTSC-J) *1/2 W, B
Pattern:32 Pattern:32 Horizontal
*Pal 75% Color Bar *NTSC 75% Color Bar
Fig. 1
Fig. 2

4-3 Adjustment of RGB.
* Required Equipments
- Remote controller for adjustment
- MSPG-925F Pattern Generator
(Which has XGA [1024x768] 75Hz PC Format output with
1/2 W,B Horizontal Pattern shown in Fig. 3)
4.3.1 Method of Auto RGB Color Balance
1) Input the PC 1024x768@75Hz 1/2 Black&White Pattern
(MSPG-925F model:39, pattern:18) into RGB.
(using D-sub to DVI-I cable)
2) Set the PSM to Standard mode in Picture menu.
3) Press the ADJ key on R/C for adjustment.
4) Press the (Vol. +) key operate to set, then it becomes
automatically.
5) Auto-RGB OK means adjustment is completed.
Before White-balance, the AV ADC should be done.
(ZE: AV3, TE : AV, ME: VIDEO)
Notice : Before White-balance, change input mode
- Move to AV3(ZE) or AV(TE) or VIDEO(ME) by using
Remote controller.
5. White Balance.
Caution : - System control RS-232 Host should be "PC" for
adjustment.
- AV ADC(ZE: AV3, TE : AV1, ME: VIDEO1) should
be done before White-balance.
* Required Equipments
Color Analyzer ( CA-110)
PC (for communication through RS-232C) ->
UART Baud rate : 115200
Pattern Generator (MSPG-925F)
* Target Value [PSM: Standard(ZE/TE), Optimum(ME),
CSM: Normal]
-Normal(9300K) - x:283±0.003, y: 298±0.003
-Luminance(Y) - AV/COMP: Less then 250 Cd/m2
(Typ: 300 Cd/m2)
- PC : Less then300 Cd/m2
(Typ: 350 Cd/m2)
=> Reference Value(Automatically fixed)
- Cool(11000K): x:0.274±0.003, y: 0.286±0.003
- Warm(7200K) : x:0.303±0.003, y: 0.319±0.003
5-1. Manual white Balance (AV)
1) Execute CA-110 Zero Calibration.
2) Execute the SET Heat Run for 30minutes
3) Push the ADJ Button then you can see the OSD
4) Push the ADJ Button again for White Balance mode
5)
Adjust High light with R/B Gain/Offset(G Gain fix, G Offset fix)
# If B is max, adjust R/G additionally.
- 13 -
Fig. 3
White Balance ZE(AV3). TE(AV1) ME(VIDEO1)
MSPG925F Model:202 Model:207
High Pattern:47 Pattern:47
*239Gray *Pal Video *NTSC Video

- 14 -
6. Shipping Conditions
No Item Condition Remark
1 Power Off
2 Volume Level 30
3 Main Picture Input TV
4 Main Last Channel 2ch
5 Mute Off
6 ARC Wide
7 Station Auto Program
Manual Program
Favorite Program None
8 Picture EZ Picture Clear
Clear Contrast 100
Brightness 45
Colour 50
Sharpness 50
Tint 0
Activate depend on Color sys.
ACC Cool
XD On
ACM Fleshtone : 1
Greentone : 1
Bluetone : 1
9 Sound EZ Sound Flat
SRS WOW Off
AVL Off
Balance 0
Treble 50
Bass 50
TV Speaker On
10 Timer Clock Off
Off time Off
On time Off
Auto sleep Off
11 Special Input TV
Language English
Key Lock Off
Set ID 1
Caption/Text Off
XD Demo To Start
Logo light On
Index On
12 Screen Auto config
Manual config
XGA Mode
ARC
Zoom +/- Variable by each mode
Position
Cinema
NR
Reset
13 PIP/DW Input TV
DW Off
PIP Off
PIP Input
Win. Size Active when pip On
Win. Position
Win. Transparency

- 15 -
SVC REMOCON
1 POWER
2 POWER ON
3 MUTE
4 P-CHECK
5 S-CHECK
6 ARC
7 CAPTION
8 TXT
9 TV/AV
10 TURBO SOUND
11 TURBO PICTURE
12 IN-START
13 ADJ
14 MPX
15 EXIT
16 APC(PSM)
17 ASC(SSM)
18 MULTIMIDIA
19 FRONT-AV
20 CH
21 VOL
22 ENTER
23 PIP CH-(OP1)
24 PIP CH+(OP2)
25 PIP SWAP(OP3)
26 PIP INPUT(OP4)
27 EYE
28 MENU
29 IN-STOP
30 STILL
31 TIME
32 SIZE
33 MULTI PIP
34 POSITION
35 MODE
36 PIP
37 TILT
38 0~9
To turn the TV on or off
To turn the TV on automatically if the power is supplied to the TV. (Use the
POWER key to deactivate): It should be deactivated when delivered.
To activate the mute function.
To check TV screen image easily.
To check TV screen sound easily
To select size of the main screen (Normal, Spectacle, Wide or Zoom)
Switch to closed caption broadcasting
To toggle on/off the teletext mode
To select an external input for the TV screen
To start turbo sound
To start turbo picture
To enter adjustment mode when manufacturing the TV sets.
To adjust the screen voltage (automatic):
In-start mute Adjust AV(Enter into W/B adjustment mode)
W/B adjustment (automatic):
After adjusting the screen W/B adjustment Exit two times (Adjustment completed)
To enter into the adjustment mode. To adjust horizontal line and sub-brightness.
To select the multiple sound mode (Mono, Stereo or Foreign language)
To release the adjustment mode
To easily adjust the screen according to surrounding brightness
To easily adjust sound according to the program type
To check component input
To check the front AV
To move channel up/down or to select a function displayed on the screen.
To adjust the volume or accurately control a specific function.
To set a specific function or complete setting.
To move the channel down in the PIP screen.
To use as a red key in the teletext mode
To move the channel in the PIP screen
To use as a green key in the teletext mode
To switch between the main and sub screens
To use as a yellow key in the teletext mode
To select the input status in the PIP screen
To use as a blue key in the teletext mode
To set a function that will automatically adjust screen status to match
the surrounding brightness so natural color can be displayed.
To select the functions such as video, voice, function or channel.
To set the delivery condition status after manufacturing the TV set.
To halt the main screen in the normal mode, or the sub screen at the PIP screen.
Used as a hold key in the teletext mode (Page updating is stopped.)
Displays the teletext time in the normal mode
Enables to select the sub code in the teletext mode
Used as the size key in the PIP screen in the normal mode
Used as the size key in the teletext mode
Used as the index key in the teletext mode (Top index will be
displayed if it is the top text.)
To select the position of the PIP screen in the normal mode
Used as the update key in the teletext mode (Text will be
displayed if the current page is updated.)
Used as Mode in the teletext mode
To select the simultaneous screen
To adjust screen tilt
To manually select the channel.
Shortcut keys
Shortcut keys
Shortcut keys
Use the AV
key to enter
the screen
W/B
adjustment
mode.
Shortcut keys
Shortcut keys
Shortcut keys

- 16 -
TROUBLESHOOTING
NO POWER
(POWER INDICATOR OFF)
REPLACE POWER BOARD
CHECK POWER BOARD
CHECK CN804
VOLTAGE (P-ST_5V) No
CHECK CRYSTAL X800
CHECK CRYCTAL
X800(19.6608MHZ) No
Yes
CHECK IC806
CHECK IC806 VOLTAGE (5V) No
Yes
CHECK Q1001
CHECK Power on/off
(5V) No
Yes
Yes

- 17 -
NO VIDEO
REPLACE LCD MODULE
CHECK THE PERIPHERAL
IC800
CHECK LVDS Output
P3(PIN 21, PIN 22) No
CHECK THE PERIPHERAL
IC1
DOWN LOAD ISP DATA
or REPLACE MAIN BOARD
Check L2
(12V) No
Yes
CHECK L1022
(24V) CHECK R898 (3.3V)
No
Yes
Yes Yes No

- 18 -
NO SOUND
REPLACE JACK BOARD
INSERT CABLES WELL
IS THE SPK CABLE
CONNECTED WELL? No
CHECK IC302 OR CHANGE
DOES IC302 OPERATE? No
Yes
CHECK IC301 OR CHANGE
DOES IC301 OPERATE? No
Yes
CHECK X300 OR CHANGE
DOES IC300 OPERATE?
DOES IC400 OPERATE?
No
Yes
Yes
Yes
CHECK X400 OR CHANGE
No

BLOCK DIAGRAM
- 19 -

- 20 -
1 1
3
12
11
2
4
5
8
9
7
6
10
13
14
WIRING DIAGRAM
NO. PART NO.
1 2 3 4 5
6631V10004A
6631T12006Q
6631T20028V
6631T20036G
6631T20039B
6 7 8 9
10
6631T20032H 6631T20032N 6631T25026D
6631T25026E
6631T25023G
11 12 13 14
6631T20033D 6631T20034U
6631T11020Z
6631T11023D
NO. PART NO. NO. PART NO.