LG DT-62SZ71DB Schematic

DLP Projection TV

SERVICE MANUAL

CAUTION

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

CHASSIS : MB-04EA

MODEL : DT-62SZ71DB

website:http://biz.LGservice.com

e-mail:http://www.LGEservice.com/techsup.html

- 2 -

CONTENTS

CONTENTS ..................................................................................................................... 2

SAFETY PRECAUTIONS ................................................................................................3

SERVICING PRECAUTIONS .......................................................................................... 4

CONTROL DESCRIPTIONS ............................................................................................6

SPECIFICATIONS ..........................................................................................................10

ADJUSTMENT INSTRUCTIONS ....................................................................................14

BLOCK DIAGRAM..........................................................................................................18

PRINTED CIRCIUT BOARD ...........................................................................................41

EXPLODED VIEW ......................................................................................................... 54

EXPLODED VIEW PARTS LIST .....................................................................................55

REPLACEMENT PARTS LIST .......................................................................................56

SVC. SHEET ......................................................................................................................

- 3 -

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 X-RADIATION, Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer.

General Guidance

An lsolation 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 circuitary 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.

Due to high vacuum and large surface area of picture tube, extreme care should be used in handling the Picture Tube. Do not lift the Picture tube by it's Neck.

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 positioin, 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 esposed 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 sepcified, 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

- 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.

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.

d. Discharging the picture tube anode.

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. Discharge the picture tube anode only by (a) first connecting one end of an insulated clip lead to the degaussing or kine aquadag grounding system shield at the point where the picture tube socket ground lead is connected, and then (b) touch the other end of the insulated clip lead to the picture tube anode button, using an insulating handle to avoid personal contact with high voltage.

4. Do not spray chemicals on or near this receiver or any of its assemblies.

5. 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 nonabrasive 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.

6. Do not defeat any plug/socket B+ voltage interlocks with which receivers covered by this service manual might be equipped.

7. 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.

8. 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.

9. Use with this receiver only the test fixtures specified in this

service manual.

CAUTION: Do not connect the test fixture ground strap to any heatsink 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 fieldeffect

transistors and semicounductor "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 electostatic 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 sufficent to demage ES devices.

5. Do not use freon-propelled chemicals. These can generate electrical charges sufficient to damage ES devices.

6. Do not remove a repalcement 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 ieads 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 bruching 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 maintan 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. Thorohly 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

circuiboard 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.

SERVICING PRECAUTIONS

- 5 -

c. Qulckly 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.

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 parapraphs 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 suctiontype solder removal device (or with solder braid) before removing the IC.

Replacement

1. Carefully insert the replacement IC in the circuit boare.

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 heatsink 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 heatsink.

Diode Removal/Replacement

1. Remove defective diode by clipping its leads as close as possible to diode body.

2. Bend the two remaining leads perpendicula 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 involoves 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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CONTROL DESCRIPTIONS

123

456

789

DVD

HDSTB

AUDIO

MODE

POWER

ARC

D/A TV

TV/AV

MULTIMEDIA

FAVOURITE

TEXT

MUTE

SLEEP

GUIDE

PIP PR-

TIME

PLAY

REW FF SKIP

PAUSE STOP

RECORD

MIX

INDEX

REVEAL

PIP INPUT

I/II

UPDATE

SIZE

STILL

PIP PR+

SWAP

EXIT

PSM SSM

INFO

PIP

VOL

CABLE

VCR

LIST

2 3

12 13

All the functions can be controlled with the remote control handset. Some functions can also be adjusted with the buttons on the front panel of the set.

Remote control handset

Before you use the remote control handset, please install the batteries. See the next page.

1. D/A TV

selects analog or digital mode.

2. TV/AV

selects the remote operating mode. switches the set on from standby.

3. MULTIMEDIA

selects Component 1/2, RGB-DTV, RGB-PC, DVI-DTV or DVI-PC modes.

4. NUMBER BUTTONS

switches the set on from standby or directly select a number.

5. SLEEP

sets the sleep timer.

6. MUTE

switches the sound on or off.

7. VOL +/- (Volume Up/Down)

Increases/decreases sound level.

PR +/- (Programme Up/Down)

selects a programme.

8. INFO

displays information on top of the screen during watching the TV.

9. GUIDE

shows a programme schedule.

10. LIST

displays the programme table.

11. OK

accepts your selection or displays the current mode.

D/E

or F / G

adjusts menu settings. selects menu item.

12. MENU

selects a menu.

13. PSM (Picture Status Memory)

recalls your preferred picture setting.

14. VCR BUTTONS

control a LG video cassette recorder.

15. MODE

selects another device.

16. POWER

switches the set on from standby or off to standby.

17. ARC (Aspect Ratio Control)

changes the picture format.

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1 2 3

4 5 6

7 8 9

DVD

HDSTB

AUDIO

MODE

POWER

ARC

D/A TV

TV/AV

MULTIMEDIA

FAVOURITE

TEXT

MUTE

SLEEP

GUIDE

PIP PR-

TIME

PLAY

REW FF SKIP

PAUSE STOP

RECORD

MIX

INDEX

REVEAL

PIP INPUT

I/II

UPDATE

SIZE

STILL

PIP PR+

SWAP

EXIT

PSM SSM

INFO

PIP

VOL

CABLE

VCR

LIST

18. TELETEXT BUTTONS

These buttons are used for teletext. For further details, see the ÔTeletextÕ section. switches the subtitle on or off in Digital mode.

19. FAVOURITE

selects a favourite programme.

20. PIP BUTTONS PIP

switches the sub picture on or off.

PR +/-

selects a programme for the sub picture.

SWAP

alternates between main and sub picture.

INPUT

selects the input mode for the sub picture.

21. EXIT

Clears all on-screen displays and returns to TV viewing from any menu.

22. SSM (Sound Status Memory)

recalls your preferred sound setting.

23. I/II

selects the language during dual language broadcast. selects the sound output. changes the audio mode (MPEG or AC3) in Digital mode.

24. STILL

freezes motion of the picture.

Note : In teletext mode, the PIP PR +/-, SWAP and PIP INPUT buttons are used for teletext function.

Battery installation

The remote control handset is powered by two AA type batteries. To load the batteries, turn the remote control handset over and open the battery compartment. Install two batteries as indicated by the polarity symbols ( and ) marked inside the compartment.

Note : To avoid damage from possible battery leakage, remove the batteries if you do not plan to use the remote control handset for an extended period of time.

21 22

23 24

- 8 -

switches the set on or off.

selects the remote operating mode. switches the set on from standby.

selects a menu.

accepts your selection or displays the current mode.

adjusts the volume. adjusts menu settings.

DD/EE

(Programme Up/Down)

selects a programme or a menu item. switches the set on from standby.

8. OPERATION INDICATOR (Refer to p.7)

9. LAMP INDICATOR (Refer to p.7)

10. TEMPERATURE INDICATOR (Refer to p.7)

Note : There might be a faint white trace on the center of the screen according to the position. This is normal and is a characteristic of the screen.

Front panel

TV/AV MENU

OK VOL VOL PR PR

Lamp indicator, temperature indicator, and operation indicator, located side the front panel controls reveal the operating status of the DLP (Digital Light Processing) projection TV.

3 4 5 8 9 106 7

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VIDEO3

S-VIDEO

VIDEO

(L)/

(R)

MONO

AUDIO

PC/DTV (XGA /480p /720p /1080i)

DVI INPUT

RGB/DVI INPUT

(L)

(R)

AUDIO

(L)

(R)

AUDIO

(L)

(R)

AUDIO

VIDEO

MONO

DTV/DVD INPUT

RGB INPUT

PC/DTV (XGA /480p /720p /1080i)

DIGITAL AUDIO

OPTICAL INPUT2

(DVI)

DIGITAL AUDIO

OPTICAL INPUT1

DIGITAL AUDIO

OPTICAL OUTPUT

UPGRADE PORT

(COMPONENT2)

COMPONENT

INPUT2 INPUT1

S-VIDEO

AUDIO

A/V 1 INPUT

A/V 2 INPUT

MONITOR OUT

CENTER MODE IN

VARIABLE

AUDIO OUT

DVI INPUT

RGB/DVI INPUT

(L)

(R)

AUDIO

(L)

(R)

AUDIO

(L)

(R)

AUDIO

(L)

(R)

AUDIO

VIDEO

MONO

DT V/D VD I NPUT

RGB INPUT

PC/DTV

(XGA

/480p /576p /720p /1080i)

DIGITAL AUDIO

OPTICAL INPUT2

(DVI)

DIGITAL AUDIO

OPTICAL INPUT1

DIGITAL AUDIO

OPTICAL OUTPUT

UPGRADE PORT

(COMPONENT2)

CO MPO NENT

IN PUT 2 I NPUT 1

S-VIDEO

AUDIO

VIDEO 1

INPUT

VIDEO 2

INPUT

MONITOR

OUT

CENTER MODE IN

VARIABLE

AUDIO OUT

PC/DTV

(XGA

/480p /576p /720p /1080i)

Rear panel

AERIAL SOCKET

RGB/DVI INPUT

Connect the monitor output connector from a PC to the appropriate input port.

VIDEO1/2 / MONITOR OUT(AUDIO/VIDEO), S-VIDEO INPUT SOCKETS

UPGRADE PORT

This port is used to

upgrade the software ver-

sion and debug without

changing the hardware.

Be careful not to use this

port. Just contact your

dealer or service centre.

DTV/DVD INPUT SOCKETS

DIGITAL AUDIO OPTI-

CAL OUTPUT/

DIGITAL AUDIO OPTI-

CAL INPUT1 (COMPO-

NENT2)/DIGITAL AUDIO

OPTICAL INPUT2 (DVI)

Connect digital audio from

various types of equipment.

Note: In standby mode,

these ports will not work.

RGB INPUT SOCKETS

S-VIDEO INPUT SOCKET

VIDEO3 INPUT SOCKET

VARIABLE AUDIO OUT SOCKETS

Off Power cord is not connected. Red Power Cord is connected, unit is on standby. Green On Orange (flashing) Preparing operation in standby. Orange Projection lamp is reaching the end of its life and

needs to be replaced with a new lamp. Green (flashing) The lamp cover is not closed. Orange The set is overheating. Red The set has shut down due to overheating. Red (flashing) The set has shut down, check the cooling fan.

Operation Indicator

Lamp Indicator

Temperature Indicator

¥Status Indicators

SPECIFICATIONS

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

V Scope

This specification can be applied to the DLP Projection(RT-62SZ71DB)

V Test and Inspection Method

1) performance:Follow the Standard of LG TV test

2) Standards of Extra requirement Safety: Follow the standard of CB EMC : Follow the standard of CE

V Test Condition

1) Temperature :25¡ 5¡C(But, CST must be tested 40¡C ± 2¡C)

2) Relative Humidity:65¡ 10%

3) Power Voltage:Standard input voltage(AC 240V¡ 10%, @50Hz)

But Standard input voltage mark value is marked by model.

4) Use the parts only designated in B.O.M.,PARTS SPEC.,or drawings.

5) Follow each drawing or spec for spec and performance of parts,based upon P/N of B.O.M

6) Warm up TV set for more than 30min. before the measurement.

Video input applicable

system

AV receiving system

Tuner IF

Input Voltage

Market

Screen size

Aspect ratio

Operating Temperature

Operating Humidity

Storage Temperature

Storage Humidity

Specification

PAL-B/B, DTV : DVB-T

1) VHF : 00~12

2) UHF : 28~69

3) CATV : 02~44

4) DTV : 06~12, 27~69

1) PAL : 38.90MHZ

2) DVB-T : 36.167MHZ

AC 240V, 50Hz

Austrailia

62 inch

16:9 (wide)

-20

- 10 -

V General Specification

Min

Typ Max Unit

Item Remark

deg

REMOCON

RGB Input

DVI Input

Optical Audio

RGB Audio(L,R) Input

Center Speaker Mode Input

Component Audio(L,R) input

Component input

AV Input

S-video Input

Monitor out

Varialbe Audio out

Serial Port

Local Key

Main Power Key

PIP/POP Mode

SSC(Split Screen) Mode

Favourite

Teletext

AVL

On/Off Timer

ARC

PSM

SSM

SETUP

PICTURE

Auto program

Manual program

Program edit

signal stregth

PSM

Contrast

Brightness

Colour

Sharpness

Tint

Colour temp

Video preset

V Feature and Function

- 11 -

D-Sub 15 pin

DVI-D

Input1 : Input DVI-D

Input2 : Input Componet2

DonÕt DTV signal Monitor out

Update

Analog : 2000Page

Digital : Sub Title

Signal strength -> DTV

Tint(60HZ AVinput only)

LG Code

1 analog RGB(separate)

1 digital RGB

3 (INPUT:2, OUTPUT: 1 )

2 L, R

2 Y, P

B, PR

3 (1 side / 2 rear)

4 (1 side / 1 rear)

1 Rear

1 L, R

TV/AV, MENU, OK, VOL(

F,G), PR(D,E)

AUTO/ 4:3/ 16:9/ 14:9/ Zoom/ Cinema Zoom

Dynamic/ Standard/ Mild/ Game/ User

Standard/ Music/ Movie/ Speech/ User

Analog/ DTV

Band/channel/dearch/ fine/Name/Storage/Booster

Analog/ Digtal

Bad/ Normal/ Good

Dynamic/ Standard/ Mild/ Game/ User

Left(0~50)/ Right(0~50)

0~100

Off/ ON

Normal/ Warm/ Cool

G/ OK

Typ

Item

Remark

Min

Max

Unit

Specification

- 12 -

Audio

TIME

SPECIAL

LOCK

Standard/ Music/ Movie/ Speech/ User

Off/ On

Left(0~50)/ Right(0~50)

0~100

Off/3D EchoSound System/ SRS TruSurround

Off/ Center/ On

Off/ On/ Time zone

Year/ Date/ Time

Off/ On/ Time

Off/ On/ Time/ Pr/ Vol

Off/ 10/ 20/ 60/ 90/ 120/ 180/ 240min

Off / On

Digital/ Analog/ Video 1/2/3 / Comp 1/2/

RGB-DTV/ PC DVI-DTV/ PC

Digital Analog/ Video 1/2/3

Off/ On

Auto/ 4:3/ 14:9/ 16:9/ Zoom/ Cinema Zoom

Auto Demo/ XD Demo

Off/ On

New/ Confirm

G/ OK

G/ PG/ M/ MA/ AV R

Video1/2/3 Comp1/2 RGB/ DVI

SSM

AVL

Balance

Treble

Bass

Front surround

TV speaker

Auto clock

Manual clock

Off timer

On timer

Sleep timer

Auto sleep

Main input

Sub input

Sub title

Child Lock

ARC

Demo

Lock system

Set Password

Block program

Parental guidance

Aux. Block

Typ

Item

Remark

Min

Max

Unit

Specification

SDTV 480i

EDTV 480p

SDTV 576i

EDTV 576p

HDTV 720p

HDTV 1080i

640x480

704x480

720x576

1280x720

1920x1080

15.73

31.47

15.625

31.250

37.5/ 45.0

28.125/33.75

59.94/ 60

59.94

50/ 59.94/ 60

50/ 59.94/ 60.0

V Component Video Input (Y, P

, PR)

Proposed

Specification

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

- 13 -

Video Input Level

Video Input Frequency Response

Video output S/N

S-Video Input Level (Y)

S-Video Input Level (C-Burst)

Component Video Input Level

(Y, C

/ PB, CR/ PR)

DVI Input Level

R/G/B Video Input Level

Audio Input S/N

Audio Input Distortion

Audio Input Level

Audio Input Frequencyl Range

0.85

0.256

0.6

0.4

0.6

0.47

0.05

0.286

0.7

0.5

0.7

0.63

1.15

0.316

0.8

0.6

0.8

0.79

Vpp

MHz

Vpp

Vrms

kHz

No Item

Specification

Min Typ Max Unit

Remark

V External Interface

Normal 240V

Power ON/OFF operation

Staring Voltage

Staring Voltage, -10 Degree

DC Voltage, Ballast

DC Voltage, 7V, stand-by

DC Voltage, Digital, 3.3V

DC Voltage, Digital, 2.5V

DC Voltage, Digital, 5V

DC Voltage,Tuning Voltage

DC Voltage, DLP Driver, 3.3V

DC Voltage, DLP Driver, 2.5V

DC Voltage, MICOM

DC Voltage, FAN

AUDIO Amp

10000

-20

-15

360

6.53

3.135

2.375

4.5

3.135

2.375

4.5

5.25

380

7.23

3.3

2.5

3.3

2.5

6.00

-20

400

7.93

3.465

2.625

5.5

3.465

2.625

5.5

6.15

times

No Item

Specification

Min Typ Max Unit

Remark

V Power

- 14 -

1. Application Object

This instruction is for the application to the DLP Projection

2. Notes

(1) The power source insulation of this DLP Projection is not

charging type and you may not use the transformer for insulation. But youÕd better adjust the set after operating it with insulation transformer between power supply cable and input part of the set for protecting the adjusting equipments.

(2) The adjustment must be performed under the correct

sequence.

(3) The adjustment must be performed in the circumstance of

¡ 5¡C of temperature and 65¡ 10% of relative humidity

if there is no specific designation.

(4) The input voltage of the receiver must keep 230V, 60Hz in

adjusting.

(5) The set must be operated for 5 minutes preliminarily

before adjustment if there is no specific designation. The preliminary operation must be performed after receiving 100% white pattern,but reception of the moving picture may also be possible in unavoidable case.

3. Composition of Adjustment Mode

(1) All adjustment mode are entered by pressing the ADJ key

on the remore control,after adjustment pess the ADJ key to come out.

(2) Below picture is screen composition when press the first

ADJ key.

(3) Select menu to adjust with using (CH+(

D),CH-(E)) key

above screen and press Enter key or Volume+(

G)key to

adjust on the wanting menu.

(4) Adjust the value of adjustment with using the volume

F),volume -(G) key.

(5) Press the ADJ key to come out after adjustment. (6) Preparation for Adjustment

1) Connect the power to TV Set and set the status of

ÒPower onÓ.

2) Heat-Run must operate over 5 minitues before adjustment.

4. Driver Board Bin Setting

See Bias Voltage Bin on the DMD as shown Fig 2 and adjust the switch on the lower Driver Board as shown Fig 3.

5. Adjustment the optical engine

(1) After placing the optical enging on the JIG, adjust

illuminator by adjuting the A, B, and C as shown Fig 4.

¤ The screen change when adjusting the A

When fasten the screw: Fall out the upper/right illuminator When loosen the screw: Fall out the lower/left illuminator

¤ŁThe screen change when adjusting the B

When fasten the screw: Fall out the lower illuminator When loosen the screw: Fall out the upper illuminator

¤Ø The screen change when adjusting the C

When fasten the screw: Fall out the upper/left illuminator When loosen the screw: Fall out the lower/right illuminator

Check the spot (phenomenon such as Light tunnel exit) on the edge of the white screen as shown Fig 5.

ADJUSTMENT INSTRUCTIONS

1. Patter n ¢”

2. Po s itio n

3. Whit e Bal anc e

4. AD988 3A- Set

5. CWI

<Fig 4>

(2) After adjustment the illuminator, adjust the focus using the

focus adjustment screw of projection lens. After fasten the nut tightenly, inject the resilock.

* Caution: The focus check position is not the center screen but

to be same proportion about upper/lower screen.

¤ The pattern when adjustment

¤ŁAdjust the 4 gold ellipse to focus as same level. ¤Ø If you canÕt check the DMD cell bourder at red center

position after adjustment, regard as NG.

¤ŒThe magnified pattern for checking the focus adjustment

6. Caution for DMD(Digital Micro-mirror Device)

(1) Caution for DMD ESD

¤ You connect the grounding to prevent ESD

(Electrostatic Discharge) when handing the DMD.

¤Ł The worker have to wear wrist strap that connect to

ground.

¤Ø Electric workshop and an electric conductor surface

connect to ground.

¤Œ Save the DMD after removement a static electricity.

Keep it at an exclusive case when moving it. When grounding, open the case.

¤ºPut on gloves that to prevent static electricity. If itÕs old,

replace it.

¤ The work is done at the electro static-free location.

Attach the tape or remove dust on the front or back pin of DMD glass.

(2) Caution

¤ Keep the procedure and caution to prevent the screen

strange phenomenon. DonÕt make a scratch.

¤Ł When DMD stains with dust, polish the front and back

DMD with soft wiper. Then, polish the front and back DMD after rotating 180 degree the DMD. If necessary, take a inspection.

¤Ø DonÕt clean the DMD with the high pressure. Because

the electric static and pollution influence to DMD.

7. EDID Data Input

(1) Required Test Equipment

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

2) S/W for writing DDC (EDID Data Write & Read).

D-sub Connection.

(2) Setting of Device

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<Fig 5>

JIG

DLP PJTV SET

(or digital board)

(3) Preparation for Adjustment

1) Set devices as above and turn the PC, jig on.

2) Put S/W for writing DDC (EDID data Write & Read) into operation. (operated in DOS mode.)

(4) Sequence of Adjustment

1). Put the set on the table and turn the power on.

2). Input the code(Product Code), production week/year, Serial number(If it is not input write Ò01Ó) to the S/W for writing DDC.

3. Operate EDID Write command.

8. CPLD Download Work

(1) Required Test Equipments & Preparation for Adjustment

1) Connect the PC and memory JIG as shown <fig8>.

2) Turn on JIG MAIN POWER SW.

3) After turn on the PC and moniter, operate the device

programming.

(2) Adjustment Sequence

1) After program running, displayed [OPTION MODE SELECTION] window.

Check the ÒLoad configuration File(.cdf, .pdr)Ó in this

window and click the finish button

2) When the screen displays the open window, select the suitable file(*.cdf) according to model.

3) IC figure is change to green by clicking it.

4) Select the [Program] of [Operations].

5) Check the [Erase before programming] and [Verify] menu as shown <Fig4> and press the OK button.

6) At this time, the download starts. The download finished after 10 seconds.

9. Screen Position Adjustment

(1) Required Test Equipments

A remote control of adjustment

(2) Horizontal Position Adjustment

1) Press ADJ key on the remote control to enter the adjustment mode

2) Select the POSITION of the adjustment menu.

3) Select the H_position of the Adjust Mode.

4) Adjust data with using the left/right key on the remote control in order to be left/right semmetry screen.

5) After adjustment over, recieve PAL-B/G Digital and chedk the adjusmen level.

(3). Vertical Position Adjustment

1) Select V-position with channel key.

2) Change the data to symmetrized upper and down of screen (refer to Fig12) and then press the Volume key on Remote control to get out of adjustment mode.

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<Fig.9>

<Fig 12> Pattern for screen adjustment

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10. Component Offset/Gain Adjustment

(1) Required Test Equipments :

A remote control for adjustment, 801GF or 802F

(2) Preparation for Adjustment

1) Connect a power source with TV Set and turn TV set on.

2) Do Heat-Run for 5 minutes and over before adjustment.

3) Receive the Component 2.

4) Receive the 720P TV30Bar Pattern of 801GF/802F(Fig11)

(3) Offset/ Gain Adjustment

1) Press Adjust key on the remote control to enter the adjustment mode after more than 10 seconds of receiving the signals.

2) Press ÒAD9883-setÓ to adjust.

3) When the OSD of ÒAdjust EndÓ appeared and disappears,The adjustment is completed

11. White Balance & Gamma Adjustment

(1) Required Test Equipments : CA110 or CA210

(2)

White basse balue(Medium):X = 0.283¡ 0.01, Y = 0.297¡ 0.01

(3) Adjustment Sequence

1) Install the equipment(CA110 or CA210) be 20cm away from screen center.

2) Select White balance by pressing ADJ Mode Key on Remote control.

3) Medium(9300

¡) : x=0.283, y=0.297

(Gain default : R=110, G=100, B=100)

- R Gain 110 on Fix

- G, B gain a variable adjust

- Offset on fix R/G/B -> -16, -16, -13

Cool(12000

¡) : x=0.275, y=0.274

- R Gain 110 on Fix

- G, B gain a variable adjust

- Offset on fix R/G/B -> -16, -16, -13

Warm(6500

¡) : x=0.313, y=0.329

- R Gain 110 on Fix

- G, B gain a variable adjust

- Offset on fix R/G/B -> -16, -16, -13

* reference : Gamma table -> 2

Brightness -> 200 Level Spoke Func. -> 0 R offset -> -39 G offset -> -38 B offset -> -36

12. CWI adjustment

(1) Required Test Equipments : remote control for adjustment

(2) Preparation for Adjustment

1) Connect the power at TV set to turn set on

2) Using the remote control, enter from ADJUST to CWI.

(3) Adjustment Sequence

1) Using the Volume key, adjust CWI to the left/right

2) As adjustment, check the appearance noise in the TEST Pattern. Setting the value reduced 3~4 step at a GREEN noise disappearing spot.<Fig 14>

3) Using CH UP/DOWN key of th remote control, enter the RED PATTERN.<Fig 15>

4) Check the RED Pattern to uniform. After checking unless abnormality do OK.

* As temperature is different sensitivity, change angle of the

color wheel. At this time, the adjustment is done because color may be changed.

<Fig 13> EU 05ch

(c ol or whe el ind ex )

CWI

16 0

<Fig 14> TEST PATTERN

<Fig 15> TEST Pattern(RED Pattern)

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BLOCK DIAGRAM

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