LG 32LX2D-AA Service manual

LCD TV

SERVICE MANUAL

CAUTION

BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

CHASSIS : AL-05PA

MODEL : 32LX2D-AA

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

SVC REMOCON ......................................................................................14

TROUBLE SHOOTING............................................................................15

BLOCK DIAGRAM...................................................................................24

WIRING DIAGRAM..................................................................................26

EXPLODED VIEW .................................................................................. 27

REPLACEMENT PARTS LIST ............................................................... 29

SVC. SHEET ...........................................................................................47

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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

IMPORTANT SAFETY NOTICE

0.15uF

To Instrument's
exposed
METALLIC PARTS

AC Volt-meter

Good Earth Ground
such as WATER PIPE,
CONDUIT etc.

1.5 Kohm/10W

- 4 -

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

o

F to 600oF.

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 wire­bristle (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

o

F to 600oF)
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

o

F to 600oF)

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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SPECIFICATION

NOTE : Specifications and others are subject to change without notice for improvement

.

1. Application range

1.1 This spec sheet is applied all of the 32" LCD TV with
AL-05PA chassis.

1.2 Not included spec and each product spec in this spec
sheet apply correspondingly to the following each country
standard and requirement of Buye

2. Specification

Each part is tested as below without special appointment.
A. Temperature : 20 ± 5°C

B. Relative Humidity : 65 ± 10%
C. Power Voltage : Standard input voltage

(110~240V@ 50/60Hz)

* Standard Voltage of each product is marked by models

D. Specification and performance of each parts are followed

each drawing and specification by part number in
accordance with BOM.

E. The receiver must be operated for about 20 minutes prior

to the adjustment.

3. Test method

3.1 Performance : LGE TV test method followed.

3.2 Demanded other specification.
EMC : CISPR 13 specification
SAFETY : CB Specification

4. General Specification

No Item Specification Remark

1. Broadcasting System PAL-B/G, DTV : DVB-T

2. Available Channel 1) VHF : 02~13

2) UHF : 14~69

3) CATV : 01~125

4) DTV : 06~12, 27~69

3 Tuner IF 1) PAL : 38.90MHz

2) DVB-T : 36.167MHz

4. Input Voltage 1) AC 240V, 50Hz

5. Aspect Ratio 16:9(Wide)

6. LCD Module LC320W01-A6K6 (1366 x 768) LPL

7. Operating Environment 1) Temp : 0 ~ 40 deg

2) Humidity : 10 ~ 80 %

8. Storage Environment 1)Temp : -20 ~ 50 deg

2) Humidity : 10 ~ 90 %

- 7 -

5. Chroma & Brightness

6. Power

No Item Min Typ Max Unit Remark

1. AC Power Operating Voltage 90 264 V

2. DC Voltage, LCD Panel Drive 11.4 12.0 12.6 V

3. DC Voltage, Inverter 22.8 24.0 25.2 V

4. DC Voltage, Sound AMP 17.4 18.0 18.6 V

5. DC Voltage, Stand By 5.6 6.0 6.4 V

6. DC Voltage, Scaler(HD2) 3.1 3.3 3.5 V

7. DC Voltage, Scaler(HD2) 1.6 1.8 1.9

8. DC Voltage, ADC 3.1 3.3 3.5 V AD9883

9. DC Voltage, VCD 5 V 4.7 5 5.3 V

10. DC Voltage, VCD 3.3V 3.1 3.3 3.5 V

11. DC Voltage, Micom 4.7 5 5.3 V

12. DC Voltage, Tuner 4.75 5.00 5.25 V
DC Voltage, Tuner 31.5 33.0 34.5 V

13. DC Voltage,Video decoder IO 3.00 3.30 3.60 V

14. DC Voltage,Video decoder Core 1.35 1.50 1.65 V

15. DC Voltage, CPLD 3.00 3.30 3.60 V XC95288

16. Audio Amp, PVDD 16.20 18.00 19.80 V TAS5122

17. Audio Amp, DVDD 3.00 3.30 3.60 V TAS5122

18 PWM Modulator IO 3.00 3.30 3.60 V NSP-6241B
19 PWM Modulator Core 2.30 2.50 2.70 V NSP-6241B

No Item Min Typ Max Unit Remark

1. Brightness 300 450 cd/m

2

2. Contrast Ratio 500:1 600:1

3. Luminance Variation 1.3 %

4. Viewing Angle(Left, Right, Up, Down) 85 88 Degree
5 Color coordinate RED X Typ 0.640 Typ

Y -0.03 0.343 +0.03

GREEN X 0.280

Y 0.605

BLUE X 0.145

Y 0.065

WHITE X 0.285

(Standard) Y 0.293

6 Color Temperature Medium 8,800 9,300 9,800 OK <Test Signal>

Cool 11,000 12,000 13,000 OK Video input, 85%
Warm 6,000 6,500 7,000 OK

Full white pattern, 5MOCD

- 8 -

7. Component Video Input (Y, PB, PR)

8. RGB, HDMI/DVI input (DTV / PC)

No Resolution H-freq(kHz) V-freq.(kHz) Pixel clock Proposed

1. 720x576 15.625 50

2. 720x576 31.25 50

3. 640x480 15.73 59.94/60

4. 704x480 31.47 59.94/60

5. 1280x720(50/60) 37.5/45.0 50/59.94/60

6. 1920x1080(50/60) 28.125/33.75 50/59.94/60.0

No Resolution H-freq(kHz) V-freq.(kHz) Pixel clock Proposed

DTV

1. 720x576 31.25 50 EDTV576p

2. 704x480 31.47 59.94 EDTV 480p

3. 1280x720(50/60) 37.5/45.0 50/59.94/60 HDTV 720p

4. 1920x1080(50/60) 28.125/33.75 50/59.94/60.0 HDTV 1080i

PC

1. 640x350 31.468 70.09 25.17 EGA

2. 640x480 31.469 59.94 25.17 VESA(VGA)

3. 640*480 37.861 72.80 31.50 VESA(VGA)

4. 640x480 37.500 75.00 31.50 VESA(VGA)

5. 800x600 35.156 56.25 36.00 VESA(SVGA)

6. 800x600 37.879 60.31 40.00 VESA(SVGA)

7. 800x600 48.077 72.18 50.00 VESA(SVGA)

8. 800x*600 46.875 75.00 49.50 VESA(SVGA)

9. 1024x768 48.363 60.00 65.00 VESA(XGA)

10. 1024x768 56.476 70.06 75.00 VESA(XGA)

11. 1024x768 60.023 75.02 78.75 VESA(XGA)

- 9 -

No Item Min Typ Max Unit Remark

1 Active Screen Size 800.4(diagonal) mm 31.51 inches
2 Outline Dimension 760(H) x 450(V) x 48(D) mm Typ.
3 Pixel Pitch 170.25 x 510.75 x RGB
4 Pixel Format 1366(H)x768(V) RGB stripe arrangement
5 Color Depth 8bit 16.7 Mbit
6 Luminance ,White 500 cd/m2 Center 1 point
7 Viewing Angle (CR>10) R/L 176(Typ),U/P 176(Typ) degree
8 Power Consumption 89.5 Watt Typ.
9 Weight 7.2 kg

10 Display Operating Mode Transmissive mode ,normally black
11 Surface Treatment Hard coating (3H), Anti-glare treatment
12 Altitude Operating 0 - 14,000 feet 4,267.2 m

Storage/Shipment 0 - 40,000 feet 12,192.0 m

13 Lamp Life Time 50,000 (min.) Hrs 25±2°C

9. General specifications(module)

9-1. Electro Optical Characteristic Specifications(module standard)

No Item Min Typ Max Unit Remark

1 Contrast Ratio 800 1,200 It measured at center point
2 Surface Luminance, White 400 600 Cd/m

2

Full white

3 Luminance Variation 1.3 (

white/5P)
4 Response Time Tr (Rising time) 12 msec
5 Color coordinate RED X 0.640 Full Pattern

Y 0.343

GREEN X Typ 0.280 Typ

Y -0.03 0.605 +0.03

BLUE X 0.145

Y 0.065

WHITE X 0.285

Y 0.293

6 Viewing Angle (CR>10) X axis right(

=0) 85 88

degree

X axis left(

=180) 85 88

Yaxis up (

=90) 85 88

Z axis down(

=270) 85 88

- 10 -

10. Set factoring Condition

No Item Value Remark

1 Power Off
2 CH Memory Analog C0,C5,C6,S11,S27,C35,C52,C68

Digital C43

3 Picture PSM Dynamic

Contrast 100
Brightness 55
Color 60
Sharpness 60
Tint (Not available)
Color temperature Medium

4 Audio SSM Standard

AVL Off
Balance 0
Treble 50
Bass 50
Front surround Off
TV speaker On
BBE Off

5 Time Auto clock On Manual Clock Enable

Off timer Off
On timer Off
Sleep timer Off
Auto sleep Off

6 Special Main input Digital

Sub input Analogue
Sub title Off
Child lock Off
ARC 16:9
Cinema Off

7 LOCK Lock System Off

Block Program All programs unblocked
Parental Guide All Grade unblocked

Aux.Block All Source unblocked
8 RGB Initial DTV
9 PIP Position Right Lower

10 Volume 30
11 Favorite No Program set

- 11 -

1. Application Object

This document is applied to 32" LCD TV which is
manufactured in Monitor Factory or is produced on the basis
of this data.

2. Notes

(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 protect test equipment.
(2) Adjustments must be done in the correct order.
(3) The adjustments must be performed in the circumstance of

25±5°C of temperature and 65±10% of relative humidity if

there is no specific designation.
(4) The input voltage of the receiver be must kept 220V, 60Hz

when adjusting.
(5) The receiver must be operational for about 15 minutes

prior to the adjustments.

After receiving 100% white pattern, the receiver must be

operate prior to adjustment.(Or white condition in HEAT­RUN mode)

Enter into HEAT-RUN MODE

- Press the POWER ON KEY on R/C for adjustment.
OSD display and screen display 100% full WHITE
PATTERN.

[ Set is activated HEAT-RUN without signal generator in

this mode.

If you turn on a still screen more than 20 minutes (Especially
Digital pattern, Cross Hatch Pattern), an afterimage may occur
in the black level part of the screen.

3. EDID

(The extended display Identification data)

/ DDC(Display Data Channel) Download

This is the function that enables “Plug and Play".

3-1. Required Test Equipment

1) PC, Jig for adjusting DDC (PC serial to D-sub.
Connection equipment)

2) DVI to HDMI Connector

3-2. Composition of Device

3-3. EDID DATA

- Download only EDID for HDMI.

- Download only EDID for RGB.

ADJUSTMENT INSTRUCTION

Each PCB Assy must be checked by Check JIG Set before
assembly. (Especially, be careful Power PCB Assy which can
cause Damage to the LCD Module.)

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 00 00 01 01 01 01
10 00 0F 01 03 80 46 27 78 0A 36 E9 A3 56 49 9B 25
20 11 48 4B 4F EE 80 31 4F 45 4F 61 4F 01 01 01 01
30 01 01 01 01 01 01 64 19 00 40 41 00 26 30 18 88
40 36 00 BA 88 21 00 00 18 00 00 00 FD 00 38 4B 1E
50 3D 08 00 0A 20 20 20 20 20 20 00 00 00 FC 00 33
60 32 4C 58 32 44 2D 41 41 20 20 20 20 00 00 00 00
70 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01 48
80 02 03 1A 72 23 15 07 50 47 85 01 04 14 13 12 00
90 83 0F 00 00 65 03 0C 00 10 00 01 1D 80 D0 72 1C
A0 16 20 10 2C 25 80 C4 8E 21 00 00 9E 01 1D 80 18
B0 71 1C 16 20 58 2C 25 00 C4 8E 21 00 00 9E 01 1D
C0 00 BC 52 D0 1E 20 B8 28 55 40 C4 8E 21 00 00 1E
D0 01 1D 00 72 51 D0 1E 20 6E 28 55 00 C4 8E 21 00
E0 00 1E 8C 0A D0 90 20 40 31 20 0C 40 55 00 C4 8E
F0 21 00 00 18 00 00 00 00 00 00 00 00 00 00 00

EB

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 5D 46 01 01 01 01
10 07 0F 01 03 68 46 27 96 0A FB 2C A3 57 47 9A 25
20 10 48 4B AF CE 00 31 4F 45 4F 61 4F 01 01 01 01
30 01 01 01 01 01 01 64 19 00 40 41 00 26 30 18 88
40 36 00 BC 88 21 00 00 18 00 00 00 FD 00 38 4B 1F
50 3D 08 00 0A 20 20 20 20 20 20 00 00 00 FC 00 33
60 32 4C 58 32 44 2D 41 41 0A 20 20 20 00 00 00 00
70 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 48

- 12 -

3-4. EDID S/W Execution and Setting

1) Connect the Set, EDID Download Jig, PC & Cable. And
Execute the S/W : EDID TESTER Ver,2.5

2) Set up S/W option

Repeat Number : 3
Device Address : A0
PageByte : 8

3-5. Sequence of Adjustment

1) Init the data

2) Load the EDID data.(Open File)
[Digital(HDMI) : Checksum(5750)]

3) Set the S/W as below.

4) Push the “Write Data & Verify”button. And input the data.

5) If the writing is finished, you will see the “OK” message.

4. AD9883A-Set Adjustment

4-1. Synopsis

AD9883A-Set adjustment to set the black level and the Gain
of optimum with an automatic movement from the analog =>
digital converter.

4-2. Test Equipment

Service R/C, MSPG925 Series Pattern Generator (720P 60Hz
Color Bar Pattern output will be possible and the output level
will accurately have to be revised with 0.7±0.1Vp-p)

4-3. Adjustment

(1) Input the color Bar Pattern of the 720P 60Hz Mode what is

supportable to Component2 or RGB-DTV INPUT and the
select the Input Mode as Component2.

(2) After receiving signal for at least 1 second, press the ADJ

Key on the Service R/C to enter the ‘Ez - Adjust’ and then
select the ‘1. AD9883A-Set’.
Pressing the Vol + Key to adjust with automatic movement.

(3) If Component adjustment is completed normality,

'Component Adjustment OK' is displayed and if RGB
adjustment is completed normality, 'RGB Adjustment OK' is
displayed. If the adjustment has errors, 'AD9883A-Failed!
Try Again' is displayed.

(4) Readjust after confirming the case Pattern or adjustment

condition where the adjustment errors.

(5) After adjustment is complete, exit the adjustment mode by

pressing the ADJ KEY.

<Fig. 2> Adjustment Pattern : 720P 60Hz Color Bar Pattern

- 13 -

5. Adjustment of White Balance

5-1. Required Equipment

(1) Color analyzer (CA-110 or similar product)
(2) Automatic adjustor (with automatic adjustment hour

necessity and the RS-232C communication being possible)

(3) AV Pattern Generator

5-2. Connection Diagram of Equipment

for Measuring (Automatic Adjustment)

RS-232C Command (Automatic Adjustment)

5-3. Adjustment of White Balance(manual)

Operate the Zero-calibration of the CA-110, then attach

sensor to PDP module surface when you adjust.

Manual adjustment is also possible by the following
sequence.

(1) Enter ‘3.White-Pattern’ by pressing ADJ KEY on the

Service Remote Control.

(2) Select "Test Pattern White" using Vol +/- Key and Execute

HEAT RUN at least 15 minutes.

(3) Receive the HDMI/DVI 720p 60Hz, Full size, 216 Gray

window pattern signal from AV Pattern Generator.
Input mode : HDMI/DVI

Baud rate = 115200bps
(4) Select the condition of screen Adjustment as ‘Dynamic’.
(5) After attaching sensor to center of screen, select ‘2. White-

Balance’ in ‘Ez - Adjust’ by pressing the ADJ KEY on the

Service R/C. Then enter adjustment mode by pressing the

Right KEY ( ) .

a. In case color temperature is Cool.

B Gain = 192(lock)
R-Offset:64, G-Offset:64, B-Offset:64
Adjust the High Light by using R Gain/ G Gain.

b. In case color temperature is Medium

R Gain = 64(lock)
R-Offset:64, G-Offset:64, B-Offset:64
Adjust the High Light by using G Gain/ R Gain-37"

c. In case color temperature is Warm

R Gain = 192 (lock)
R-Offset:64, G-Offset:64, B-Offset:64
Adjust the High Light by using G Gain/ B Gain.

(6) Adjust using Volume +/- KEY.

luminosity value : High Level : 216gray

a. Cool : X=0.274±0.002, Y=0.274±0.002

Color temperature : 12000°K±1000°K, dUV=-3dUV

b. Medium : X=0.287±0.002, Y=0.289±0.002

Color temperature : 9300°K±1000°K, dUV=-3dUV

c. Warm : X=0.315±0.002, Y=0.316±0.002

Color temperature : 6500°K±1000°K, dUV=-3dUV

(7) After adjustment is complete, move to Ez - Adjust screen

by pressing the ENTER(

) KEY. Then exit the adjustment

mode by press ADJ KEY.

R Gain

G Gain

B Gain

R Offset
G Offset
B Offset

00
00
00
00
00
00

ff
ff

ff
7f
7f
7f

Jg
Jh

Ji

Ja
Jb
Jc

Jd
Je

Jf

C0
C0
C0

C0
C0
C0

C0
C0
C0

RS-232C Command

[CMD ID DATA]

Cool

Mid

Warm

Cool Mid

Warm

MIN

CENTER

(DEFAULT)(Hex)

MAX

<Fig. 3> Connection Diagram of Automatic Adjustment

40
40
40
40
40
40

40
40
40
40
40
40

40
40
40
40
40
40

216 FULL WHITE

COLOR

ANALYZER

TYPE; CA-110

HDMI signal input

PDP MONITOR

MSPG-925 Series

- 14 -

SVC REMOCON

NO. KEY FUNTION REMARK

1 POWER To turn the TV on or off
2 POWER ON

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.
3 MUTE To activate the mute function.
4 P-CHECK To check TV screen image easily. Shortcut keys
5 S-CHECK To check TV screen sound easily Shortcut keys
6 ARC To select size of the main screen Shortcut keys

(Auto, 4:3, 16:9, 14:3, Zoom, Cinema Zoom)
7 TXT To toggle on/off the teletext mode
8 TV/AV To select an external input for the TV screen
9 IN-START To enter adjustment mode when manufacturing the TV sets.

Use the AV key to
enter the screen W/B

adjustment mode.

10 ADJ To enter into the adjustment mode.

To adjust horizontal To enter into the adjustment mode.

To adjust horizontal

11 MPX To select the multiple sound mode

(Mono, Stereo or MPEG, BOLBY, Digital)

12 EXIT To release the adjustment mode
13 APC(PSM)

To easily adjust the screen according to surrounding brightness

14 ASC(SSM) To easily adjust sound according to the program type
15 MULTIMIDIA To check component input(+RGB, HDMI/DVI) Shortcut keys
16 FRONT-AV To check the front HDMI Shortcut keys
17 CH±

To move channel up/down or to select a functiondisplayed on the screen.

18 VOL± To adjust the volume or accurately control a specific function.
19 ENTER To set a specific function or complete setting.
20 PIP CH-(OP1) To use as a red key in the teletext mode
21 PIP CH+(OP2) To use as a green key in the teletext mode
22 PIP SWAP(OP3) To use as a yellow key in the teletext mode
23 PIP INPUT(OP4) To use as a blue key in the teletext mode
24 MENU

To select the functions such as video, voice, function or channel.

25 IN-STOP

To set the delivery condition status after manufacturing the TV set.

26 STILL 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.)

27 TIME Displays the teletext time in the normal mode

Enables to select the sub code in the teletext mode

28 SIZE Used as the size key in the PIP screen in the normal mode

Used as the size key in the teletext mode

29 MULTI PIP Used as the index key in the teletext mode

(Top index will be displayed if it is the top text.)

30 POSITION 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.)

31 MODE Used as Mode in the teletext mode
32 PIP To select the simultaneous screen
33 0~9 To manually select the channel.

- 15 -

TROUBLESHOOTING

No image

Attach the input cable(s)

Push the POWER ON key

Is the Set ON?

Is the input cable

attached?

Component / S-Video

Replace SideAV boardCorrect them

What is

the input signal

mode?

Check the

Input Y, Cb, Cr

At the pin no.5,7,9 of

IC-AN15865 on

Jack board

Check the

Condition of all

Connectors, wafers, I2C

In component

Signal flow

Power Error

Replace IC1 AN15865

To sheet 20

To sheet 21

Yes

NO Yes

FAIL PASS

(component)

PASS

(S-Video)

FAIL

FAIL

PASS PASS

PASS

FAIL

NO

Check the

output YUV at

R 418, 415, 412

respectively

Check 9V

Across L401and

5V across L404

and L402

- 16 -

No image

Power Error

Attach the input cable(s)

RF/AV/IDTV input

Push the POWER ON key

Correct them

Replace IC1 AN15865

Check Tuner, SCART1/2

Front AV or Digital board

Accordingly w.r.t the Mode.

Is the

Set ON?

Power Error

Replace IC1 AN15865

Is the input cable

attached?

What is

the input signal

mode?

Check main

CVBS at R303

Check

Secondary CVBS

at R434 (for PiP)

Check 9V

Across L401and

at pin 3 of IC100

5V across

L404 , L402

Check 9V

Across L401and

at pin 3 of IC100

5V across

L404,L402

Check the

input video signal

at pin 48, 50, 52, 54, 60

of AN15865 For RF,

AV1/2/3, IDTV

Resp.

Check the

Condition of all

Connectors, wafers, I2C

In corresponding

Signal flow

Yes

NO

Yes

FAIL

PASS

FAIL

FAIL

PASS

PASS

PASS

FAIL

FAIL

FAIL

PASS

PASS

NO

To sheet 21

From sheet 22

- 17 -

No image

Attach the input cable(s)

Push the POWER ON key

Is theSet ON?

Is the input cable

attached?

HDMI / DVI DTV

Replace IC accordingly

Correct them

What is

the input signal

mode?

Check the

Corresponding EDID

Storage memory (I.e.,

IC202 for DVI and

IC203 for HDMI)

Check the

Condition of all

Connectors, wafers, I2C

In corresponding

Signal flow

Power

Error

Replace IC1 AN15865

To sheet 21

Yes

Yes Yes

FAIL

FAILFAIL

PASS

PASS

PASS

PASSPASS

FAIL

FAIL

Check the interfacing ckt

Of corresponding mode

On jack board

NO

Check the

input TMDS signal

at pins 39-52 for

DVI and 58-71 for

HDMI of IC601

SiI9021

Check 24

Bit RGB output

Across AR 601-606

Check 3.3V at

L601-605 and

1.8V at pin 2 of

IC602

- 18 -

No image

Attach input cable or

memory card

Push the POWER ON key

Is the Set ON?

Is the input cable

attached?

DVI PC / X-Studio

Check the interfacing

circuit At the jack

board or replace X-studio

Board accordingly

Correct them

What is

the input signal

mode?

Check the

i/p RGB/HV signal

At the pin no.72-76 for

X-studio and 1-2,78-80

For PC, of

AN15865

Check the

Condition of all

Connectors,wafers,I2C

and slots In corres

Ponding Signal

flow

Power Error

Replace IC1 AN15865

To sheet 20

Yes

NO Yes

FAIL PASS

FAIL FAIL

PASS

PASS

PASS

FAIL

NO

Check the

output YUV at

R 418, 415, 412

respectively

Check 9V

Across L401and

5V across L404

and L402

- 19 -

Check the

24 bit RGB signal

output of ADC(X98014)

across RA500-501

Check the

3.3V supply volt
across L503, L504

And clock frequency

at pin 39,40

of ADC

From sheet 19

From sheet 16

To sheet 21

(DVI PC / X-Studio)

To sheet 21

(component)

Power Error

Replace ADC

PASS

PASS

PASS

FAIL

FAIL

- 20 -

check the

output of VSP at.

10,15,16,18,20,21,22

30,31,32 pin

Check the

supply Vcc 3.3V

across L6,7 and 1.8V at pin 2

of IC11,12 and crystal

Frequency at

Pin 69,70

Check the

output of Froudja.

at pin 148-155,130-137 for

Y/C signal and clk,

VS,Hs at RF21-23

check the

RGB output of

PW181 across RAS

10-15 and sync and clk

Signal across RS

45-48

check the

supply 3.3V at LS

4, 2.5V at LS3 and 1.5V

at LS6 and LS9 and

Crystal freq

Check the

IEP output across

RAIP 1-6 and RIP

1,3,4,6

Check LVDS

output for PiP at pin

37,41,45,47 & for main image

at pin 48,46,42,38 of

IC902(LVDS IC).

check 3.3Vdd

and 2.5Vdd across

respectively

LIP2 and LIP1

check the

3.3Vdd across
CF12 and 1.8Vdd

across CF27,CF33 and 13.5

MHz at pin 191-192

of Froudja

Replace

Froudja

Replace

PW181

Power Error

Power Error

Replace LVDS

Replace IEP

Crystal or Power

Error

Replace VSP9437B

Crystal or Power Error

Crystal or Power Error

Check Power Levels and do

Power Troubleshooting

From sheet 20

(component)

From sheet 16

(S-Video)

From sheet 22

From shee 17

From sheet 18

From sheet 20

(DVI PC / X-Studio)

Check

Vcc_PLL 3.3V

Across L901

PASS

FAIL PASS

FAIL

FAIL

PASS

PASS

PASS

FAIL

FAIL

PASS

PASS

FAIL

PASSFAIL

FAILPASS

PASS

FAIL FAIL

- 21 -

Check in

owners manual

whether the input

given for PiP is

supported

or not

Check the

YUV ouput across

RA18,20,22 if PiP is

digital or CVBS at R434

if PiP is RF/AV at

AN15865

Is PiP mode ON?

What is the

PIP input

Push PiP key

Change the input for PiP

Follow the corresponding

Troubleshooting

Procedure for same mode

To sheet 21

To sheet 17

NO

Not Supported

PASSFAIL

Any otherDTV/RF/AV

Supported

Yes

- 22 -

1. RF/AV/Component/ X-Studio/PC-Audio

Check the

Condition of all

Connectors, wafers, I2C

In corresponding

Signal flow?

Check 18V

supply at pin 55and

pin 30 of

AMP

Check audio

output at MSP

across R655,656,657

And 605.

Check the

supply voltage 8V

across L601-602

Check the PC

R/L signal across

R621,630; Analog_SIF at

R602; Side R/L at R619,620;

Front R/L at R617,618 and X-Studio

R/L at R658-659 according to

The corresponding

mode

Is

Volume level

Of the set

0?

Check

3.3V supply across

L305 and 2.5V at

L304

Check the

PWM output of NSP

across R325-328

Is

Mute ON?

Is the Set ON?

Correct them

Replace NSP

Power Error

Replace

TAS5122 (amp)

Power Error

Check the

Amplifier output level

At L300-303

There may be some

error in Audio source.

Increase the VolumeTurn OFF the Mute

Push the POWER ON key

Check the interfacing ciruit

of PC audio, Analog Tuner,

Front AV board, Side AV

board or X-Studio board

accordingly w.r.t the mode.

No Audio

Replace the MSP

NO Yes Yes

NO

NO

Yes

FAIL

PASS

PASS

FAIL

FAIL

PASSPASS

PASS

FAIL

FAIL

PASS

PASS

FAIL

PASS

FAIL

FAIL