LG LA61A, 42LB1DRA-UA, 42LB1DR-UA Service Manual

LCD TV

SERVICE MANUAL

CAUTION

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

CHASSIS : LA61A

MODEL : 42LB1DR-UA / 42LB1DRA-UA

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 ......................................................................................17

VIDEO TROUBLE SHOOTING&BLOCK DIAGRAM ..............................18

AUDIO TROUBLE SHOOTING&BLOCK DIAGRAM..............................41

EXPLODED VIEW .................................................................................. 53

EXPLODED VIEW PARTS LIST..............................................................54

REPLACEMENT PARTS LIST ............................................................... 55

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 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

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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 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

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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SPECIFICATION

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

1.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'

5) NTSC M

6) PAL-N/M 6),7) South America Market

7) 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 42.02inch(42LB1R)

7. Tuning System FVS 100 program PAL, 200 PR.(Option) FS NTSC

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

2) Humidity : 10~90 %

9. Storage Environment 3) Temp : -20 ~ 50 deg

4) Humidity : 10~90 %

10. Display LCD Module LPL

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2. General Specification

No Item Specification 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 Middle east / NTSC Area

3 : Pb 5 : Pr 7 : Line1 Ready 9 : LINE2 11: LINE3 13: Line3 Ready

D4 Jack(525i, 525p, 750p,1125i) 2 : Y GND JAPAN Only

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 - -

≤ 240W

Stand by

≤ 3.0W

Red

DPMS Mode ON/OFF OFF

≤ 30W

Green

Power off - - - *

6 LCD Module Outline 42"

1006 x 610 x 56(mm)

(H)x(V)x(D) Dimension Pixel Pitch 42"

0.227 x 0.681 x RGB(mm)

Pixel Format 1366 horiz. By 768 vert.

Pixels RGB strip arrangement

Coating Hard coating(3H), Anti-glare

reatment of the front polarizer,

Back Light 42" 20EEFL

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3.Optical Feature(LCD Module)

Item RemarkSpecification

Viewing Angle<CR

10>

Luminance

Contrast Ratio

CIE Color Coordinates

Typical MAX/MIN ALL white/All back LPL

R/L, U/D Luminance(cd/

) Variation CR CR

D (With Al)

Typ

176, 176

500

400

1000

0.285

0.293

0.640

0.341

0.287

0.610

0.146

0.069

WHITE

RED

GREEN

BLUE

Typ. Typ. Typ. Typ. Typ. Typ. Typ. Typ.

No.

1 2

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

Specification

Proposed

Resolution H-freq(kHz) V-freq(Hz)

1. 640x480 15.73 60 SDTV, DVD 480i ZE, TE, ME

2. 640x480 15.63 59.94 SDTV, DVD 480i ZE, TE, ME

3. 720x480 31.47 59.94 EDTV 480p TE, ME

4. 720x576 15.625 50.00 SDTV, DVD 625 Line ZE, 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 50Hz (AU Ver.)

TE, ME

9. 1920x1080 33.75 60.00

HDTV 1080i 60Hz (ATSC)

TE, ME

10. 1920x1080 33.72 59.94 HDTV 1080i 59.94Hz TE, ME

5. RGB 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

Min

300 700

Typ.

-0.03

Max

1.3

Typ.

+0.03

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

1 720x576 31.25 50.00 SDTV 576p 50Hz 2 720x480 31.47 59.94 SDTV 480p 60Hz 3 1280x720 45.00 50.00 HDTV 720p 50Hz HDCP 4 1280x720 44.96 59.94 HDTV 720p 60Hz HDCP 5 1920x1080 28.13 50.00 HDTV 1080i 50Hz HDCP 6 1920x1080 33.72 59.94 HDTV 1080i 60Hz HDCP

6. RGB DTV INPUT Mode Table

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

8. HDMI DTV INPUT Mode Table

7. HDMI 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 1920x1080 33.75 60.00 86.375 HDCP DVI Digital 1080i

10 1280x720 45.00 60.00 74.375 HDCP DVI Digital 720p

9. Mechanical specification

No, Item Content Remark

1 Product Dimenson Width(W) Length(D) Height(H)

Before Packing 1175 300 768 With Stand After Packing 1282 386 920

2 Product Weight Only SET 43.4Kg With Stand

With Box 48.2kg

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10. 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 > 10 Low (0 - 2V) - TV Mode

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) - -

<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 > 10

Low (0 - 2V) - TV Mode

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 Object

These instructions are applied to all of the PDP TV, PA61A.

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 110V, 60Hz

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

prior to the adjustments.

O Preliminary action is applied to the test for afterimage

discharge detection, and 100% FULL WHITE PATTERN must be operated automatically.

O Test for afterimage discharge detection

1) After pressing Power Only key(only operating by pressing Power Only key), Full Test Pattern(2 min 30sec) --> Full Black Pattern(30sec) --> After this state, Full White Pattern is displayed. (but you must preset the program for Full White State when you press the Main Power Off/On)

2) Pattern Mode is deselected by pressing CH +/-, Exit Key.

[ Set is activated HEAT-RUN without signal generator in this

mode.

3. EPLD Download

(1) Test Equipment: PC, Jig for download (2) Connect the power of VSC B/D. (3) Execute download program(iMPACK) of PC. (4) After executing the hot key on the Programmer, click icon (5) End after confirming

4. Gemstar VBI Micom Download

4-1. Preparation for Adjustment

(1) As shown below, connect the MPLAB ICD2 equipment, PC

and Digital Connector.

(2) Turn on the MPLAB ICD2 POWER Supply.

(3) After turn on the PC and MONITOR, select the ‘MPLAB

IDE’ from the screen.

4-2. Adjustment Sequence

(1) When the program is executed, select the MPLAB ICD2

from Programmer -> Select Programmer .

If you turn on a still screen more than 20 minutes (Especially Digital pattern(13 CH), Cross Hatch Pattern), an afterimage may occur in the black level part of the screen.

VSC

B/D

+13V

GND Data

Test Pattern 2min 30sec

Test Pattern 30sec

Connect the RS-232 or USB Cable

Connect the MPLAB ICD2 and connector of Digital Board

- 12 -

(2) Select "Configure -> Select Device".

(3) When the "Select Device" window appears, select the

PIC18F1220 from "Device" and press OK.

(4) Select "Programmer -> Connect".

When connected with the Micom, the display message on the Output window appears as below.

(5) Select "File -> Import", select the Work HEX file and open.

(6) Select "Programmer -> Program".

(7) Download is executed and about 5 seconds later, the

"Programming succeeded" message is displayed on the Output window and the Download process is ended.

(8) The execution of process (6) is convenient when using the

short-cut icon.

5. POD Certificate Download

5-1. Preparation for Adjustment

(1) Connect the MEMORY JIG and PC. (2) Turn on the JIG MAIN POWER SWITCH. (3) After turn on the PC and MONITOR, execute the

‘Certificate Downloader v1.4’ from the screen.

5-2. Adjustment Sequence

(1) After open the ‘Certificate Downloader v1.4’, enter

Connection set and set the as same below. The port settings are determined by each PC's setup.

(2) Select ‘Connection’ and SET connected to RS-232C. (3) After clicking "Enter", confirm that "Enter Password:"

appears.

- 13 -

(4) Click the "OpenFile - Download" button from CP Data

Download, ‘select the Private Key’ appears and click ENTER.

(5) After clicking ENTER, the ‘opens Private key' window

appears and select the Private key applied to the SET. The Private Key file name is on the Label of the Digital Board.

(6) When the Dialog window appears, click OK and the write

work will begin.

(7) When completed, click ‘CP Data Download: OK’

[ When ‘CP Data Download: OK’ does not appear, certificate

has not Download correctly. SET is rebooted and certificate Download work must be repeated.

6. Gemstar Operation Confirmation

6-1. Required Test Equipment

(1) PC with Factory Test Program (2) VBI Inserter (Norpak TES3) - Guide Data Discharge

Equipment

[ In case of without the VBI Inserter(TES3), a VCR may be

used.

6-2. Preparation for Adjustments

(1) In case of with VBI Inserter(TES3): Signal uses Cable input

and set as below.

(2) In case of without VBI Inserter(TES3): VCR uses Cable

input and set as below.

[ Factory Test S/W must be set to "GlinkTo PC Card" ON.

6-3. Adjustment Confirmation Work

(1) Turn on the TV and run Factory Test Program of PC.

[ Program only needs to run once, regardless of set quantity.

(2) Enter the EZ adjust menu by pressing Adjust on the

Service Remote Control (S R/C). (3) Go to number 1 Gemstar and press Enter. (4) TV set screen will appear as shown.

(5) Confrim that VBI Test and Serial Test PASS from the

screen.

RS-232C

Input Signal

7. Cable Operation Confirmation

(1) Confirm that the Cable Card is inserted in the slot. (2) Enter the EZ adjust menu by pressing the Adjust key on

the Service Remote Control (S R/C).

(3) Go to number 2 Cable Check and press the Right key (

G ) .

(4) Confirm items below.

8. POWER PCB Assy Voltage Adjustment

(Va, Vs Voltage Adjustment)

8-1. Test Equipment :D.M.M 1EA 8-2. Connection Diagram for Measuring

Refer to Fig 1.

9. EDID(The Extended Display

Identification Data)/DDC (Display Data Channel) Download

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

9-1. HDMI EDID Data Input

(1) Required Test Equipment

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

2) S/W for writing DDC(EDID data write & read)

3) D-Sub cable

4) Jig for HDMI Cable connection

(2) Preparation for Adjustments &

Setting of Device

1) Set devices as below and turn on the PC and JIG.

2) Open S/W for writing DDC (EDID data write & read). (operated in DOS mode)

- 14 -

Name

Descrambler

Check

CableCARD

OOB Path

FDC_SNR

Video Signal

Normal

CableCARD

is inserted.

OK(Lock)

OK(20dB above)

Normal Screen

Defective

Not OK

CableCARD

is removed.

Not OK(Unlock)

Not OK(20dB under)

Black Screen

(No Picture)

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

<Fig. 1-1> Connection Diagram of Power Adjustment for

Measuring (Power Board): 50”

<Fig. 2>

<Fig. 1-2> Connection Diagram of Power Adjustment for

Measuring (Power Board): 60”

GND

DMM

P805

GND

P804

P800

VR95 VR90

P803

P802

PDP TV SET

(or Digital Board)

CN1

10. ADC-Set Adjustment

10-1. Synopsis

ADC-Set adjustment to set the black level and the Gain to optimum.

10-2. Test Equipment

Service R/C, 801GF(802B, 802F, 802R) or MSPG925FA Pattern Generator (720P The Horizontal 100% Color Bar Pattern output will be possible and the output level will accurately have to be revised with 0.7±0.1Vp-p)

10-3. Adjustment

(1) ADC 480i Component1 Adjustment

Check the connection Component1 to the Test Equipment

(1) Select Component1 as the input with 100% Horizontal

Color Bar Pattern(HozTV31Bar) in 480i Mode and select ‘Normal’ in screen.

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

ADJ Key on the Service R/C to enter the ‘Ez - Adjust’ and select the ‘4. ADC 480i Comp1’. Pressing the Enter Key to adjust with automatic movement.

(3) When the adjustment is over, 'ADC Component1

Success’ is displayed.

(4) If the adjustment has errors, 'ADC Configuration Error’

is displayed. And error massage(‘Component Not Connection’ or ‘Change Format to 480i’ or ‘Check Pattern of device’ ) is displayed for 1 second.

(2) ADC 1080i Component2/RGB Adjustment

Check the connection Component2, RGB to the Test Equipment

(1) Select Component2 as the input with 100% Horizontal

Color Bar Pattern(HozTV31Bar) in 1080i Mode and select ‘Normal’ in screen.

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

ADJ Key on the Service R/C to enter the ‘Ez - Adjust’ and select the ‘5. ADC 480p Comp2/RGB’. Pressing the Enter Key to adjust with automatic movement.

(3) When the adjustment is over, 'ADC Component2

Success’ is displayed. If the adjustment has errors, 'ADC Configuration Error’ is displayed.

(4) After the Component2 adjustment is over, convert the

RGB-DTV Mode and display Pattern.

When the adjustment is over, 'ADC RGB_DTV Success’ is displayed.

(5) Readjust after confirming the case Pattern or

adjustment condition where the adjustment errors. Error massage is ‘Component Not Connection’ or ‘Change Format to 480i’ or ‘Check Pattern of device’.

(6) After adjustment is complete, exit the adjustment mode

by pressing the ADJ KEY.

11. Adjustment of White Balance

11-1. Connection Diagram of Equipment

for Measuring (Automatic Adjustment)

[ RS-232C Command (Automatic Adjustment)

- 15 -

<Fig. 4> Connection Diagram of Automatic Adjustment

R Gain G Gain B Gain

R Cut G Cut B Cut

Jg Jh

Cool

Ja Jb Jc

Mid

RS-232C COMMAND

[CMD ID DATA]

CENTER

(DEFAULT)

Jd Je

00 00 00

255 255 255 127 127 127

Warm

Min Max

184 187 192

64 64 64

Cool

161 183 192

64 64 64

Mid

192 159

95 64 64 64

Warm

<Fig. 3> Adjustment Pattern : 480i/1080i 60Hz HozTV31

Bar Pattern

Full White Pattern

COLOR

ANALYZER

TYPE; CA-100

Digital RGB

PDP MONITOR

MSPG-925FA

11-2. Adjustment of White Balance

Operate the Zero-calibration of the CA-210, then attach sensor to PDP module surface when you adjust.

Manual adjustment is also possible by the following sequence.

(1) HEAT RUN at least 30 minutes by pressing the Power only

Key on the Service Remote Control and adjust.

(2) After attaching sensor to center of screen, select ‘White-

Balance’ of ‘Ez - Adjust’ by pressing the ADJ KEY on the Service R/C. Then enter adjustment mode by pressing the Right KEY (

). This time white pattern is displayed.

(3) Adjust the Hight Light using R Gain/G Gain(Cool).

Adjust the Hight Light using G Gain/R Gain(Medium). Adjust the Hight Light using G Gain/B Gain(Warm). (R Gain: 192, B Gain 192, R-Cut/G-Cut/B-Cut: 64 Fix.)

(4) Adjust using Volume +/- KEY. (5) After adjustment is complete, exit the adjustment mode by

pressing the ADJ KEY.

High Level: 216gray

[Cool]

X; 0.278±0.015 Y; 0.279±0.015 Color temperature: 11000°K±1000°K dUV: -3dUV

[Medium]

X; 0.287±0.015 Y; 0.289±0.015 Color temperature: 9300°K±1000°K dUV: -3dUV

[Warm]

X; 0.314±0.015 Y; 0.318±0.015 Color temperature: 6500°K±1000°K dUV: -3dUV

12. Video(uPD)-Set

Adjustment for reduce color difference Main/Sub screen of RF or Video signal.

12-1. Adjustment

(1) Connection the Video Signal Generator(Master) to the TV

AV Input terminal. After input pattern(Model: 201(NTSC-M), Pattern: 32(100% color Bar), pressing the ‘Rev’ button and appear as below figure

(2) After receive signal, confirm the signal receiving.

And Enter the ‘EZ-ADJUST’ by pressing the ADJ Key on the Service R/C. Select ‘5. Video(UPD)-Set’ and enter the adjustment mode by pressing the right key (

(3) When enter the adjustment mode, displayed the TV 2CH

SPLIT Screen automatic at picture and appear as below figure.

(4) When the automatic adjustment is over, 'RF Configuration

Success’ is displayed. If the adjustment has errors, 'Video Configuration Error’ is displayed.

(5) After the RF signal automatic adjustment is over, convert

the Video Mode as below figure and adjust with automatic movement the Video Mode. When the automatic adjustment is over, 'Video Configuration Success’ is displayed. If the adjustment has errors, 'Video Configuration Error’ is displayed.

- 16 -

- 17 -

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

- 18 -

VIDEO TROUBLESHOOTING & BLOCK DIAGRAM

• DCR DVR

LVDS Tx.

RGB

(THC63LVD103)

DOutClk

SPDIF

Control GPIO

Peripheral Bus

MST33611_HDMI

SPDIF_IN_BYPASS

CPLD

System

HD2_ICE958_OUT

HDMI_SPDIF

HD2_DAC_SCK/LRCK

) *2

IIC3

0x12

TX/RX P2,N2

TX/RX P1,N1

,TPB r

X-tal

(TPA r

(25M)

LGDPLL

(SiI3512)

SATA I/F

1394

Controll er

(TSB43DA42)

(LGDT1901B)

HD2_SYS_CLK

DPLL_R[1:3]

(74.25M)

HD2_VDPClk

CXA2069

XDR_DATA_R/G/B[0:9]

HD2_REC_CVBS

TX[0:4]±

TXC±

IEP3

IIC2

0x1E

HV,Hact

CY2305SC

(CS8415A)

VCXO

(8MB x4)

SDRAM

32MByte

(LGDT1303)

VPP1

VPP

0xB8

IIC 2

V/Q _TP

IIC 2

0xB2

X-tal

(25M)

Video In/Out

27Mh

64-Bit I/F

1.8V

656 Data[0:7]

SDRAM

X-tal

IN5 TV

IN1

V, LR

Rear AV_ 1

Reg.

TP/D1

HD2_TP[0:7]

(1Mx 16Bit)

(24.576M)

Rear S_1

HD2_MAIN_PWM

CP_656[0-7]

MUX

CPLD

Video Dec oder

Filter(opt)

(FMS6410)

(Sub)

OUT2

IN1

EPF_L/R

HD-2.4

Sub

MSP4458G

CP_656_CLK

SEL

PDR 656[0:7]

(UPD64015)

A/V SW

(CXA2069)

IN3

IN6

V,LR

Side AV_ 2

HD2_CVBS_OUT

HD-II

-TP De-Mux

- MPEG Decodi ng : MP@HL

-Format Converter

EXT_IN_CLK

SUB_656_CLK

CY2309

SYS

CPLD

656CLK

SDRAM

X-tal

IIC 2

0xBA

IIC 3

Filter(opt)

(FMS6410)

OUT1

(Main)

IN4

Side S_2

MNT_V_Out

-Host I/F, Memory I/F

YCbCr 30

OR1

YCbCr

(1Mx 16Bit)

(24.576M)

0x50

IIC 4

OUT3

-Digital I/F

-NTSC Encod er

H,V

CPLD

OR3

H,V

CLK

(UPD64015)

Video Dec oder

uCom

MTV416

0x90

OUT1

AV_L/R_OUT

4440

M_MSP

FID

-AC-3 Decod er/SPDIF In/out

OR2

FID

P_SW_2

YCbCr

Comp_1

-IEP2

OR1

YCbCr

IIC 4

IN4

0x84

AH_SPDIFCLK

VBI Slicer & IR (USA Only)

CPLD

OR2

OR3

H,V

FID

CLK

ADC

(MST3361)

LPF(OPT)

(FMS6403)

YCbCr

Video SW

IN1

(CXA2181)

IN2

IN3

YCbCr

RGBHV

Comp_2

RGB-PC

HD2_NT2CLK

PVR_SYS_CLK

EPLD_CLK

• Block Box-show the

IN/OUT connections

PCI Bus

1394_IN_TP[0:7]

1394_OUT_TP[0:7]

MUX

CPLD

VPP_SW

POD_TP[0:7]

VSB DATA

OOB/POD Controller (USA Only)

(6M) IF r

OOB IF+/-

IIC 1

0XC0

Flag

CLK,VALID,SOP

LGDT3502

IF_AGC

Add.

[0:13]

POD/OOB

Control ler

PI_CLKB

OOB_EN1_2

DRX / CRX

74LCX244

DRX / CRX

IIC 3

0x1C

Main

X-tal

(25M)

LGDT3703

4440

M_MSP

CP_TPN2[0:7]

CP_TPN1[0:7]

PC_TPOUT2

TI PC_TPOU

Voltage

PI_CLK

DRX / CRX

SIF

DDR

32Mb

PVRsoc

LTC1470

Contr oller

POD

MUX

CPLD

LGDT3703

IF_AGC

(6M) IF r

SIF

4458G

S_MSP

OOB Tuner

ATSC/NTSC/

U-Com

CableANT.

AT/NTSC Tuner

IIC 1

0XC2

H,V

SYNC

GS_Y_2069

IIC 2

H,V

EPF_RGB-PC RGBHV

SPDIF Receiver.

U-COM

GS_Y_1

H,V

(74HCT4053)

ANAL OG DE/

MULTIPLEXER

(MM1108XF)

SEPARATOR

GS_V_TU

0x9C

Comp.

Voltage

MAIN_CVBS

OR2

FID

System CPLD

74LCX14

IIC 4

AT/NT Tuner

I2S

0x88

Sub

Rear L/R

HV_pol

HV_PC

PVRSoc

MSP

Side L/R

IIC 4

AT/NT_M_Tuner

4458G

CPU_CLK

PCI_CLK_PVR

PCI_CLK_1394

VCXO

(PIC18F1220)

(LM311M)

PWM AMP

PWM_L/R

0x6C

PWM

LPF

I2S

AT/NT_S_Tune

CXA2069

RS-232C

PCI_CLK_SATA

CY2309SC

33.33Mhz

EEPROM

(AT24LC512)

CPU

UART1_RX/TX

PIC18F242

(TAS5122)

PWM AMP

(NSP2100A)

MODULATOR

ANALOG_L/R

I2S_MCLK

IIC 4

SIF

MNT_Out

Comp_1

(ST3232)

PCI Bus

0xA6

IIC 1

GEM_IR_OUT

I2S In

AUDIO ADC

BUFFER

0x80

Main

Comp_2

SDRAM

G_LINK_CONN

HD-2.4

(CS5331)

(MC33078)

I2S Out

(MSP4440)

Sound Proc

RGB(Phone)

64MB(32MBx2)

32Bit Bus I/F

CPU [PPC 405GPr]

EN[0:3(GPIO)]

IIC 1

Reset

RGB

RXD[0:2]±, RXCLK±

Flash Memory

KIA7029

- S DRAM Controller

- Peripheral Controller

IIC 2

OR1

HDMI Rx

DDC(I2C)

16MB(8MBx2)

74LCX244

- Local BUS I/F

IIC 3

HD2

MST3361

BSS83

EEPROM

Peripheral Bus

- Serial(2), GPIO, I2Cr

I2C Hub

(PCA9516)

IIC 4

SYS

CPLD

H,V,DE

IIC 2

RXD[0:2]±, RXCLK±

DDC(I2C)

CLK

0x9C

BSS83

EEPROM

CY2309

RESET

- 19 -

HD2.4

• Digital B/D MUX Interface

TP/D1

PVRSoc

TP_OUT

TP_IN1/2656

QAM_TPVSB_TP

MUX CPLD

VSB POD

656data

SUB UPD

- 20 -

Q802

• Digital B/D Power Block

IC401

SI4925DY

IC1001IC1003

IC1605 IC1606 IC1607

MC33078

KIA78R09

FAN4

KIA78R09

FAN2, 3

KIA78R09

FAN1

EPF Module

Ethernet BD

IC705

IC601

AZ1117-1.8

FMS6407

24LC02*2

CS5331A

DS1621

M62320

AZ1117-3.3

IC800

LGDP4411

IC403

63LVDM83R

THC63L103

IC805

AZ1117-3.3

+5.0V

TU1300

IC1102 IC1100

IC1103

IC1101

LGDT1102F

POD Mod.

AT/NT Tuner w/OOB

MM1108

LM311

PIC18F1220

4053

AZ1086-1.8

(1A)

AZ1117-1.8

LGDT3703

AZ1117-1.8

LGDT3703

24LC512

242LP

EPM570_144

HY57V561620*2

29DL640*2

29DL323*2

PPC405GPr

IC200

CY2305*2

LCX244*2

IC1201

CY2305*2

LCX244*2

LGDT3502

SC1565-2.5

PCA9516

LGDT1901B

HY57V641260*4

IC1007

IC904

IC203

Sil3512

AZ1117-1.8

AZ1117-3.3

MST3361

AZ1117-2.5

CY2309

TSB43DA42

IC707

AZ1117-1.5

AZ1117-3.3

AZ1117-1.5

AZ1117-3.3

IC708

IC802

82B715

uPD64015*2

AZ1117-3.3

EPM570_256

HY57161610*2

IC201

LCX14

IC600

HY5DU573222

DDR-RAM

IC906

AZ1117-1.8

LGDT1304

LCX244

LGDT3703

IC909

AT/NT Tuner

+5.0V

AT/NT Tuner

IC301

IC1802 TU1301

PQ05DZ1U

+6.0V

+12.0V

KIA78R09

HDD

IC1607

IC1806

PQ05DZ1U

+5V_L

Si3865

+5V_ST

IC304

LIVE_ON

ST3232

AZ1117-3.3

3.3V_L

IC1301

PWR_SW2

AZ1117-1.8

3.3V

Si3865

IC1401

AZ1117-1.5

IC101

SC1565-1.8

+3.3V_ST

Pow er Block Diagram

IC907

IC904

SC2595

AZ1117-2.5

Live Power

Dead Power

(Overall Digital B/D)

- 21 -

VFD

• Digital B/D Power Block

VFD

MSP4450

[28mA]

[1A]

[163mA]

[200mA]

RF_SW

Live Power

Dead Power

Power Block Diagram

(Detailed)

[24mA]

TAS5122

[5mA]

[+3.3V]

+9.0V

IC301

KA7809R

CXA2069

MSP4458G

[25mA]

[72mA]

[145mA]

+5.0V

IC301

+5VST_RFSW

Si3865

PWR_SW1

NSP2100A

[88mA]

CXA2181

PQ05DZ1U

IC502

[3mA]

AT24C16

SC1565-1.8

[24mA]

MTV416

BA033-3.3

IC504

Si3865

PWR_SW2

+20V

+12V

+6V

+5V_ST

+3.3V_ST

- 22 -

I2C_CH1(Live)

• DCR DVR I2C MAP

I2C_CH2(Dead)

I2C_CH3(Live)

1080P

De-Inter

Index

I2C_CH4(Dead)

Port Exp.

Sub MSP

Main MSP

(FLI8668)

0x76/0x78

0x70

(M62320)

0x88

(MSP4440K)

0x80

(MSP4440K)

0xC2

NT Tuner

(Korea only)

(TDVS-H901P)

0xC6

(VP-15R)

NT Tuner

0xC0

Tuner

AT/NT/OOB

(TDVM-H751P)

NT Decoder

ADC /w HDMI

IEP2

PDP Module

Sub

Main

(MST3361)

(LGDP4411)

0x1C

0xBA

(uPD64012)

0xB8

(uPD64012)

0x9C

0x1E

U-Com

Sub

VSB/QAM

Main

VSB/QAM

DPLL

EEPROM

0x50

(MTV412MF)

0xB2

(LGDT3703B)

0x1C

(LGDT3703B)

0x12

(LGDT1901B)

0xA6

(24LC512)

DASP

(NSP2100A)

AV Switch

(CXA2069Q)

AV Switch

(CXA2181Q)

Sensor

Temper.

Port Exp.

(M62320)

SPDIF

Receiver

0x6C

0x90

0x84

(DS1621)

0x74

(CS8415A)

0x94

0x20

CPU_I2C

CPU

I2C Hub

(PCA9516)

I2C_HUB

_EN[1:4]

CPLD

I2C Master

(PPC405GPr)

(EPM570)

- 23 -

1394 TP_In

• DCR DVR VIDEO PATH

LVDS

IEP3

LGDT1304(PVR SOC)

Audio

Encoder

Motion

Estimator

ROMMEM

PCI Bus

Video

Decoder

Pre-proc

NTSC/PAL

Video Enc

MPEG-2 SD

DMA

EISC

Int

Timer,

Bus Master

DDR-32MB

Peri Bus

PVR Up

PVR Down

VSB TP

1394 In

CCIR656

MPG656

TP Out1

VSB TP

QAM TP

TP Out2

V/Q TP

QAM TP

TP In1

I/F

SCI I/F

Ch Input

PLL/DLL

Controller

SC-AES DSC-AES

Controller

TP In2

656

MUX CPLD

Peri Bus

IEP2

14bit

TP Out12

/ARIB/DVB/OC)

System Decoder

& De-scramblers

(ATSC/DIRECTV

Video

Feature

Extractor

ATAPI I/F

SDRAM I/F

PCI Bus

TP Out11

TP In1

TP In2

PCI2.2

Ch Output I/F

656

VSB TP

QAM TP

1394 Out

CCIR656

QAM TP

V/Q TP

VSB TP

QAM TP

1394 Out

CCIR656

V/Q TP

Peri Bus

S-Card

LGDT3502

uPD64015

Y/C

uPD64015

TP/D1

MST3361

HD 2.4

-TP De-Mux

HD2_CVBS

- MPEG Decoding : MP@HL

-Format Converter

-Host I/F, Memory I/F

-Digital I/F

-NTSC Encoder

RGB/ YC

/YCbCr

Block

Gemstar

-AC-3 Decoder/SPDIF In/out

OOB Data

24MB

Flash Mem

24MB

PPC405GPr

SDRAM

LGDT3703

PCI Bus

LGDT3703

V_M

V_S

GEM_CVBS

SiI3512

OOB

AT/NT

64MB

HDD

EPF

AT/NT

CXA2069

AV1

AV2

Monitor Out

CXA2181

HDMI2

HDMI1

COMP1

RGB

COMP2

Cable

- 24 -

• DCR DVR NO OSD

- 25 -

3.3V

• DCR NO OSD

GND

Replace Power board

Check

Power connector

33.75KHz

_Check Power connect or.

1 : _Check the D1601, D1602, D1603, D1604 (Digital board)) ON.

#(DE) :

2 : _Check the LGDP4412(IC804) input signal

Check LG DT1102C (IC401)

80.1MHz

59.94Hz

33.75KHz

#(Clk) :

#(Hsync):

Check LGDP4411 (IC1305)

#(Vsync) :

Check LGDP4412 (IC804)

_Signal shape is same(above)

3 : _Check t he THC63LVD103 (IC1302) input sign al

#27(DISP_EN) :

4 : _Check the P80 1 input signal

80.1MHz

#9 (TXCC-) :

5 : _Check the LVDS Cable

6 : _Check the PDP Modul e control bo ard

Check

D1604(Digital board )

D1601, D1602,D1603,

Check LGDP4412(IC804)

(DE), (Clk), (Hsync), (Vsync)

#57(Vsync)

Check THC63LVD103 (IC803)

#58(DE), #12(Clk), #55(Hsync),

#10(TXCC+)

Check P801

#27(DISP_EN), #9(TXCC-),

Check LVDS Cable

Control bo ard

Check PDP Module

+ 56 hidden pages