LG MB-03CA Service Manual

TV/AV MENU OK VOL PR

DOLBYDOLBY

VIRVIRTUALTUAL

LCD Projection TV

SERVICE MANUAL

CAUTION

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

CHASSIS : MB-03CA

MODEL : RT-48SZ40RB

website:http://biz.LGservice.com

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

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CONTENTS

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

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

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

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

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

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

BLOCK DIAGRAM..........................................................................................................19

PRINTED CIRCIUT BOARD...........................................................................................23

EXPLODED VIEW ......................................................................................................... 34

EXPLODED VIEW PARTS LIST.....................................................................................35

REPLACEMENT PARTS LIST .......................................................................................36

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 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.

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

STB

AUDIO

MODE

POWER

MUTE

TV/AV

MULTIMEDIA

ARC

PSM

SSM

EXIT

PIP PR-

LIST

I/II

PIP INPUT

PIP PR+

PLAY

PAUSE

STOP

RECORD

REW

SKIP

SWAP

PIP/DW TEXT

CABLE

VCR

POSITION

SIZE

STILL

MODE

SLEEP

Q.VIEW

VOL

INDEX

TIME

REVEAL

MIX

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.

Displays the selected device

2. MODE

selects a LG TV, VCR or DVD function.

3. TV/AV

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

4. MULTIMEDIA

selects

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

5. NUMBER BUTTONS

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

6. SLEEP

sets the sleep timer.

7. VOL +

- (Volume Up/Down)

Increases/decreases sound level.

PR +/ - (Programme Up/Down)

selects a programme.

PSM (Picture Status Memory)

recalls your preferred picture setting.

9. PIP BUTTONS (option) PIP/DW

switches the sub picture on or off. selects PIP, POP or DW modes.

PIP PR +/-

selects a programme for the sub picture.

SWAP

alternates between main and sub picture.

PIP INPUT

selects the input mode for the sub picture.

SIZE

adjusts the sub picture size.

STILL

freezes motion of the sub picture.

POSITION

relocates the sub picture in clockwise direction.

10. MENU

selects a menu.

11.

accepts your selection or displays the current mode.

D / E

F / G

Adjusts menu settings. Selects menu item.

12. DVD BUTTONS

control a LG DVD player.

13. VCR BUTTONS

control a LG video cassette recorder.

- 7 -

1 2 3 4 5 6

7 8 9

DVD

STB

AUDIO

MODE

POWER

MUTE

TV/AV

MULTIMEDIA

ARC

PSM

SSM

EXIT

PIP PR-

LIST

I/II

PIP INPUT

PIP PR+

PLAY

PAUSE

STOP

RECORD

REW

SKIP

SWAP

PIP/DW TEXT

CABLE

VCR

POSITION

SIZE

STILL

MODE

SLEEP

Q.VIEW

VOL

INDEX

TIME

REVEAL

MIX

14. POWER

switches the set on from standby or off to standby.

15. MUTE

switches the sound on or off.

16. ARC (Aspect Ratio Control)

changes the picture format.

17.

Q.VIEW

returns to the previously viewed programme.

18. SSM (Sound Status Memory)

recalls your preferred sound setting.

19. TELETEXT BUTTONS (option)

These buttons are used for teletext. For further details, see the ‘Teletext’ section.

20. EXIT

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

21. I/II

selects the language during dual language broadcast. selects the sound output (option).

22. LIST

displays the programme table.

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

14 15

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1. MAIN POWER (ON/OFF)

switches the set on or off.

2. LED (Light Emitting Diode) DISPLAY

3. OPERATION INDICATOR (Refer to p.7)

4. LAMP INDICATOR (Refer to p.7)

5. TEMPERATURE INDICATOR (Refer to p.7)

6. TV/AV

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

7. MENU

selects a menu.

8. OK

accepts your selection or displays the current mode.

FF/GG

(Volume Down/Up)

adjusts the volume. adjusts menu settings.

10.

DD/EE

(Programme Up/Down)

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

11. REMOTE CONTROL SENSOR

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 PR

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VIRVIRTUALTUAL

DOLBYDOLBY

VIRVIRTUALTUAL

2 3 4 5 6 7 8 9 10 11

Lamp indicator, operation indicator, and temperature indicator, located below the front panel controls reveal the operating status of the LCD projection TV.

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AV 3

S-VIDEO

VIDEO

SIDE A/V

(L)/

(R)

MONOAUDIO

INPUT

ANT IN 75‰

R L

P O R T

U P G R A D E

DTV/DVD INPUT

RGB (XGA/ 576p/ 480p/ 720p/ 1080i)

(L)

AUDIO

(R)

A U D I O O U T

A B L E

R I

(L) AUDIO (R)

MONO

A/V 1 INPUT

A/V 2 INPUT

MONITOR OUT

(L) AUDIO (R)

AUDIO CENTER MODE IN

PC/DTV INPUT

COMPONENT INPUT 1

576i/480i 576p/480p

720p/ 1080i

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

COMPONENT INPUT 2

S-VIDEO

R L

P O R T

U P G R A D E

DTV/DVD INPUT

RGB

(XGA/

576p/ 480p/ 720p/

1080i)

(L)

AUDIO

(R)

A U D

O O

U T

A B L E

(L)

AUDIO

(R)

MONO

A/V 1

INPUT

A/V 2

INPUT

MONITOR

OUT

(L)

AUDIO

(R)

(L)

AUDIO

(R)

AUDIO CENTER

MODE IN

PC/DTV INPUT

COMPONENT

INPUT 1

576i/480i

576p/480p

720p/ 1080i

576i/480i 576p/480p

720p/ 1080i

COMPONENT

INPUT 2

S-VIDEO

AV 3

S-VIDEO

VIDEO

SIDE A/V

(L)/

(R)

MONOAUDIO

INPUT

Rear panel

AERIAL SOCKET

UPGRADE PORT

This port is used to

upgrade the software

version and debug

without changing the

hardware.

Be careful not to use

this port. Just contact

your dealer or service

centre.

DTV/DVD INPUT SOCKETS

RGB INPUT

SOCKETS

S-VIDEO INPUT SOCKET

AV3 INPUT SOCKET

VARIABLE AUDIO OUT SOCKETS

EXTERNAL SPEAKER

OUTPUT (8 ohm)

Connect to optional

external speaker(s).

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

AV1/2 / MONITOR OUT(AUDIO/VIDE O), S-VIDEO INPUT SOCKETS

- 10 -

SPECIFICATIONS

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

V Scope

This specification can be applied to the LCD Projection(RT-48SZ40RB)

V Test and Inspection Method

1) performance:Follow the Standard of LG TV test

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

V Test Condition

1) Temperature :25¡ 5°C

2) Relative Humidity:65¡ 10%

3) PowerVoltage:Standard input voltage(AC 230V¡ 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.

Specification

PAL – B/G, D/K, I, M, N SECAM B/G, D/K, L/L’ PAL/SECAM NTSC 3.58/ 4.43 VHF : E2 ~ E12 UHF : E212 ~ E69 CATV : S1~ S20 HYPER : S21 ~ S41 L/L’ VHF : B,C,D (Option) AC 230V, 50HHz EU 48 inch 16:9 (wide)

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V General Specification

4 5 6 7 8

9 10 11

except PAL-M/N

Video input applicable system AV receiving system

Available Channel

Input Voltage Market Screen size Aspect ratio Operating Temperature Operating Humidity Storage Temperature Storage Humidity

Min

Typ Max Unit

Item Remark

deg

40 85 60 85

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V Feature and Function

LG Code 1 Separate 1 L/R 2 Y, P

, P

2 L/R

Bottom : Full Scart (AV1) 1

Half Scart 9AV2/S-video2)

4 Half Scart(AV3)

Top : S-Video (AV4)

A/V Input (AV4) 1 1Rear 1 1Rear 1 Left/Right Power, Menu, ok, Volume (F, G), Channel (D, E) Dynamic/ Standard/ Mild/ Game/ User Contrast/ Brightness/ Colour/ Sharpness/ Tint PC : 16:9/ 4:3/ User CVBS : 4:3/ 16:9/ Zoom/ Auto/ 14:9 Dolby Virtual/ Flat/ Music/ Movie/ Speech A2 : B/ G, D/ K, NICAM : B/ G, D/ K, I, L/ L’ O O Top/ Flop Sleep Timer/ Auto Sleep EU 17 Nation Off/ Dark/ Normal/ Bright

1 2 3 4 5 6

7 8

9 10 11 12 13 14

15 16 17 18 19 20 21 22

D-Sub 15 Pin

Scart1 Out Scart2 Out External out

Item

Specification

Remark

REMOCON RGB Input RGB Audio (L, R) Input Component Audio (R, L) Input Component Input AV Input

TV out Monitor out Serial Port Speak Out Local key Picture, EZ Video mode Picture, User Control Display mode

Sound, EZ Sound mode Sound Stereo/ Dual PIP/ POP Mode SSC (Split Screen) Mode Teletext Timer OSD Language Index

At Room Temperature At -10

°C

1 2 3 4 5 6 7 8

Power ON/OFF operation Staring Voltage (AC INPUT) Staring Voltage (AC INPUT) DC Voltage, Ballast DC Voltage, Audio AMP DC Voltage, 3.3V, stand-by DC Voltage, Analog 3.3V DC Voltage, Analog 2.5V

10000

-20

-15

360

3.15

2.438

380

3.3

2.5

400

3.45

2.600

times

% % V V V V V

No Item

Specification

Min Typ Max Unit

Remark

V Power

Min

Typ Max Unit

- 12 -

9 10 11 12 13 14 15

DC Voltage, Digital, 5V DC Voltage, Turning voltage DC Voltage, LCD Driver, 5V DC Voltage, LCD Driver, 17.5V DC Voltage 3.3, SUB MICOM DC Voltage 2.5V, SUB MICOM DC Voltage, FAN

4.875 29

4.5 17

3.15

2.438

11.5

5.0

17.5

3.3

2.5 12

5.125 33

5.5 18

3.45

2.600

12.5

V V V V V V V

No Item

Specification

Min Typ Max Unit

Remark

75 ohm (480I/P, 576I, 720P, 1080I) 75 ohm

10.

11.

12.

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) R/G/B Video Input Level Audio Input S/N Audio Input Distortion Audio Input Dynamic Range Audio Input Level Audio Input Frequencyl Response

0.85 3

0.85

0.256

0.6

0.6 40

0.47

0.05

0.286

0.7

0.63

1.15

0.316

0.8

0.79 10

Vpp

MHz

dB Vpp Vpp Vpp

Vpp

% V

Vrms

kHz

No Item

Specification

Min Typ Max Unit

Remark

V External Interface

SDTV, DVD 480I SDTV, DVD 480I EDTV 480P SDTV, DVD 576I EDRV 576P HDTV 720P (60Hz) HDTV 720P (50Hz) HDTV 1080I (60Hz) HDTV 1080I (50Hz)

640x480 640x480 704x480 720x576 720x576 1280x720 1280x720 1920x1080 1920x1080

15.75

15.73

31.47

15.625

31.250

45.00

37.50

33.75

28.125

59.94

59.94 50 50

60.00 50

V Component Video Input (Y, P

, PR)

Proposed

Specification

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

Volume Curve

Text Top

I_II SVC

Lamp_Type

C_Mute

system

Text Language

- 13 -

0 : Standard 1 : Non-Standard (Southeast Asia,Central America) 0 : Support FLOP 1 : Support All (FLOP + TOP) 0 : Do not save DUAL When converting Channel 1 : Save DUAL when Converting Channel 0 : OSRAM 1 : PHILIPS 0 : Not Ready to Over-Modulation in DK Mono 1 : Ready to Over-Modulation in DK Mono BG/i/DK/LL’ 0 : west EU 1 : East EU 1 2 : East EU 2 3 : Turkey EU 4 : Cyrillic 1 5 : Cyrillic 2 6 : Cyrillic 3 7 : Turk GRE 1 8 : Turk GRE 2 9 : Turk GRE 3 10 : Arab FRA 11 : Arab ENG 12 : Arab HEB 1 13 : Arab HEB 2 14 : FARS ENG 15 : FARS FRA 16 : FARS All

No Item

Specification

Min Typ Max Unit

Remark

V Option

- 14 -

1. Application Object

This instruction is for the application to the LCD Projection

2. Notes

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

charging type and you may not use the transformer for insulation. But you’d 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

25+/-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, 50Hz 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 remote control,after adjustment press 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 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) ex.) Composition of each adjustment mode.

1). RGB Alignment:This is the sub adjustment item by selected Adjust key.

F, G (Vol +/ -): This is the key to change the data.

D, E (CH +/ -):This is the key to change the sub menu.

4. LCD adjustment

4-1. NRS adjustment

[When the LCD panel load data on regular pixel using high speed charge/ discharge with sample & holder, the drain width of TFT gradually decreases and the non-resistance increases, and comes out regular noise on screen (shows vertical line by 12 pixel]

(1) Required Test Equipments

1) PC Pattern generator; 16 Gray Pattern

2) Fixation stand

3) Remote control for adjustment

4) Circuit thing Jig for adjustment (Except Driver Board Assy)

(2) Equipment composition : Refer to <Fig 2>

(3) Preparation for Adjustment

1) Connect PC PATTERN GENERATOR to JIG SET as shown <Fig 2>.(Except drive part of a circuit block)

2) Select 16 Gray pattern of PC PATTERN GENERATOR

(4) Adjustment Sequence

1) Turn on power supply in the JIG for adjustment.

2) Press the INPUT key to select RGB_PC mode.

3) Press the ADJ key on remote control for adjustment to enter the adjustment mode.

4) Select the ‘62352’ and press the

G key. Then select 6.

RNRSH, 9.GNRSH, 11.BNRSH of ADJUST MODE to adjust.

5) Let’s decrease vertical line Noise by using Volume button. (Input a R, G, B input signal, then adjust it individually)

6) When finishing the adjustment, get out of adjustment mode by pressing Adjust key.

4-2. VCOM ADJUSTMENT

(1) Required Test Equipments

1) PC PATTERN GENERATOR ; Pattern Generator which can generator each R, G, B signal and can observe the FLICKER best (ex : me Character Pattern)

2) <Fig.2> Equipment composition

3) Remote control

4) Circuit thing Jig for Adjustment (Except Driver Board Assy of adjustment model)

(2) Equipment Composition

(3)Preparation for Adjustment

1) Connect the PC PATTERN GENERATOR, circuit for adjustment and adjustment JIG as shown <Fig 2>.

2) Adjust output pattern of PC PATTERN GENERATOR to possible display and then turn on the power.

ADJUSTMENT INSTRUCTIONS

RT52SZ30RB [V*.*] RGB Alignment 62352 Uniformity Adj Gamma Adjust AD9883 Adjust

Sub Micom Ver. ** Main Micom Ver. **

RGB Alignment

9.DXOUTB

10.H_positon F 0 G

Optical measuring equipment

Screen

Adjustment Jig

Optical box

Set stand

Circuit for Adjustment

PC Pattern Generator

(4) Adjustment Sequence

1) Turn on the adjustment Jig

2) Select RGB_PC by pressing input Select Key on Remote control.

3) Enter to adjustment mode by pressing Adjust key on Remote control.

4) Select the ‘62352’, then ready to adjust 4. RVCOM, 7. GVCOM, 10.BVCOM

5) Let’s decrease flicker by using Volume key

(Input a R, G, B input signal, then adjust it individually)

6) When finishing the adjustment, get out of adjustment mode by pressing Adjust key.

5. CPLD Download Work

(1) Required Test Equipments & Preparation for Adjustment

1) Connect the PC and memory JIG as shown <fig3>.

2) Turn on JIG MAIN POWER SW.

3) After turn on the PC and monitor, operate the device programming.

(2) Adjustment Sequence

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

Check the “Load configuration File(.cdf, .pdr)” 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. f) At this time, the download starts. The download finished

after 10 seconds.

6. H/V Position Adjustment

(1) Required Test Equipments

A remote control of adjustment

(2) Preparation for Adjustment

1) Turn TVset on and press EYE key on the remote control.

2) 11th screen - Select the pattern that has 11th white small square/ diagonal, and the red big square.

(3)Adjustment Sequence

Adjust data with using the up/down/left/right key on the remote control

7. Screen position adjustment

(1) Required Test Equipments

A remote control of adjustment

(2) Preparation for Adjustment

1) Connect the power source with TV Set and turn TVset on

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

(3) Horizontal Position Adjustment

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

2) Select the RGB Alignment of the adjustment menu.

3) Select H-position with

G key.

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

(4). Vertical Position Adjustment

1) Select V-position with channel key.

2) Change the data to symmetrized upper and down of screen (refer to Fig6) and then press the Volume key on Remote control to get out of adjustment mode.

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Optical measuring equipment

TV Set

Connector for Adjustment

RS-232C Cable

PC Pattern Generator

Adjustment Jig

8. Component Offset Adjustment

(1) Required Test Equipments :

A remote control for adjustment, 801GF

(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 1 or 2.

4) Receive the 720P/60Hz, HozTVBar Pattern of 801GF

(3) Offset 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 “4.AD9883 Adjust” to adjust.

3) When the OSD of “AD9883 Adjust End” appeared and disappears,The adjustment is completed

(4) Component & RGB Mode White Balance passivity

adjustment

1) After inputting the 16 Gray pattern (RGB or Component), check the White Balance status of Low Level (2-6 Gray Level).

2) After Pressing the IN-START key of remote control, select the AD9883 and press the

G key. - Red Offset, Blue Offset

is able to adjust.

3) After selecting the adjustment mode with the channel key, adjust Red Offset, Blue Offset value with the volume key to adjust passively white Balance in Low Level.

adjustment limit : Red Offset - +/-2 step

Blue Offset - +/-4step

9. White Balance & Gamma Adjustment

(1) Required Test Equipments

1) CA100 : 1EA

-> Measure colour of projecting screen center [CA-110(name of model) is possible to measure White Balance and Gamma - leave it 20Cm from screen center

Follow a measurement machine manual to set CA-100and CA-110 measurement machine.]

2) pattern Generator : 1EA -> 16 step Gray Pattern, 64 step Gray Pattern

3) SET Fixation Stand : 1EA

4) Remote control : 1EA

5) Circuit thing Jig for adjustment (Except Drive Board Assy of adjustment model)

--- Programmed Digital Board so that the VDP Test Pattern

can output white signal by 1 level from 0 to 255 level.

(2) Equipment composition : Follow <Fig 2>

Adjust at same condition of equipment composition diagram.

(3) Preparation for Adjustment

Compose the equipment follow Fig.2 and place the set on the

fixation stand.

1) Select the VDP Test Pattern signal to R1, G1, B1.

2) Press the Adjust key to select 62352 and then select RVREF, GVREF, BVREF in adjust mode

3) Adjust the luminance of CA100 to be below 0.75Cd by volume key.(Range : 196~ 202)

4) Exit adjustment mode by pressing Adjust key.

5) Press the IN-START key on the remote control and select the 7050 RGB Set of adjustment mode and then press the

G key.

6) Check the data value of R contrast, Gconrast, B contrast is 515, Otherwise set the data 515 by using volume key.

(4) Adjustment Sequence

1) Output 255,255,255 signal of VDP TEST PATTERN, then display maximum WHITE PATTERN on screen.

2) Gamma Adjust Mode is display as below when select Gamma adjust by pressing ADJ key on remote control.

*First column : R adjustment data

display

*Second column : G adjustment

data display

*Third column : B adjustment data

display

3) Change the 16 Step RGB data to select white balance x:283, y:297(D9300K).[48inch - X:269, Y:294;11000K]

4) Measure the luminance with changed data.

5) Set the every Gamma data of 16 step to 2.2 on the basis of measured luminance data in 3)clause. (Max luminance *(n1/16)**2.2)

--- Max luminance : measured luminance data n1 : every step unit when separating signal level to 16 step

6) Output the 240, 240, 240 (15th data in max white output signal level) in the VDP Test Pattern, change the 15th RGB data value to come out white valance x=283, y=297(D9300K) and measured step luminance in 5)clause.

7) Output the 224, 224, 224 (14th data in max white output signal level) in the VDP Test Pattern, change the 14th RGB data value to come out white valance x=283, y=297 and measured step luminance in 5)clause.

8) As shown above, output the VDP Test Pattern signal (208/192/176/160/144/128/112/96/80/64/48/32/16) and change the RGB data value of each step to come out white balance x=283, y=294 and measured luminance in

3)clause.

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[EU 05 CH]

Gamma Adjust

R:1 G:2 B:3 80 100 100

234 216 216 453 411 387

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