LG 32LC56-ZC, 32LC56, 32LC55-ZA, 32LC55, 32LC7D-ZA Service Manual

...

LCD TV

SERVICE MANUAL

CAUTION

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

CHASSIS : LD73A

MODEL : 32LC7D 32LC7D-ZA

MODEL : 32LC55 32LC55-ZA MODEL : 32LC56 32LC56-ZC

website:http://biz.LGservice.com

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CONTENTS

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

PRODUCT SAFETY ..................................................................................3

SPECIFICATION ........................................................................................6

ADJUSTMENT INSTRUCTION .................................................................9

TROUBLE SHOOTING ............................................................................14

BLOCK DIAGRAM...................................................................................22

EXPLODED VIEW .................................................................................. 24

REPLACEMENT PARTS LIST ............................................................... 26

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

1.5 Kohm/10W

To Instrument’s exposed METALLIC PARTS

Good Earth Ground such as WATER PIPE, CONDUIT etc.

AC Volt-meter

IMPORTANT SAFETY NOTICE

0.15uF

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CAUTION: Before servicing receivers covered by this service manual and its supplements and addenda, read and follow the

SAFETY PRECAUTIONS on page 3 of this publication. NOTE: If unforeseen circumstances create conflict between the

following servicing precautions and any of the safety precautions on page 3 of this publication, always follow the safety precautions. Remember: Safety First.

General Servicing Precautions

1. Always unplug the receiver AC power cord from the AC power source before; a. Removing or reinstalling any component, circuit board

module or any other receiver assembly.

b. Disconnecting or reconnecting any receiver electrical plug or

other electrical connection.

c. Connecting a test substitute in parallel with an electrolytic

capacitor in the receiver. CAUTION: A wrong part substitution or incorrect polarity installation of electrolytic capacitors may result in an explosion hazard.

2. Test high voltage only by measuring it with an appropriate high voltage meter or other voltage measuring device (DVM, FETVOM, etc) equipped with a suitable high voltage probe. Do not test high voltage by "drawing an arc".

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

4. Unless specified otherwise in this service manual, clean electrical contacts only by applying the following mixture to the contacts with a pipe cleaner, cotton-tipped stick or comparable non-abrasive applicator; 10% (by volume) Acetone and 90% (by volume) isopropyl alcohol (90%-99% strength) CAUTION: This is a flammable mixture. Unless specified otherwise in this service manual, lubrication of contacts in not required.

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

6. Do not apply AC power to this instrument and/or any of its electrical assemblies unless all solid-state device heat sinks are correctly installed.

7. Always connect the test receiver ground lead to the receiver chassis ground before connecting the test receiver positive lead. Always remove the test receiver ground lead last.

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

service manual.

CAUTION: Do not connect the test fixture ground strap to any heat sink in this receiver.

Electrostatically Sensitive (ES) Devices

Some semiconductor (solid-state) devices can be damaged easily by static electricity. Such components commonly are called Electrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistors and semiconductor "chip" components. The following techniques should be used to help reduce the incidence of component damage caused by static by static electricity.

1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any electrostatic charge on your body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging wrist strap device, which should be removed to prevent potential shock reasons prior to applying power to the

unit under test.

2. After removing an electrical assembly equipped with ES devices, place the assembly on a conductive surface such as aluminum foil, to prevent electrostatic charge buildup or exposure of the assembly.

3. Use only a grounded-tip soldering iron to solder or unsolder ES devices.

4. Use only an anti-static type solder removal device. Some solder removal devices not classified as "anti-static" can generate electrical charges sufficient to damage ES devices.

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

6. Do not remove a replacement ES device from its protective package until immediately before you are ready to install it. (Most replacement ES devices are packaged with leads electrically shorted together by conductive foam, aluminum foil or comparable conductive material).

7. Immediately before removing the protective material from the leads of a replacement ES device, touch the protective material to the chassis or circuit assembly into which the device will be installed. CAUTION: Be sure no power is applied to the chassis or circuit, and observe all other safety precautions.

8. Minimize bodily motions when handling unpackaged replacement ES devices. (Otherwise harmless motion such as the brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity sufficient to damage an ES device.)

General Soldering Guidelines

1. Use a grounded-tip, low-wattage soldering iron and appropriate tip size and shape that will maintain tip temperature within the range or 500

°F to 600°F.

2. Use an appropriate gauge of RMA resin-core solder composed of 60 parts tin/40 parts lead.

3. Keep the soldering iron tip clean and well tinned.

4. Thoroughly clean the surfaces to be soldered. Use a mall 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, SECAM

2. Receivable Broadcasting System 1) PAL/SECAM BG EU(PAL Market)

2) PAL/SECAM DK

3) PAL I/I

4) SECAM L/L'

5) DVB-T

3. RF Input Channel VHF : E2 ~ E12 PAL

UHF : E21 ~ E69

CATV : S1 ~ S20

HYPER : S21~ S47

4. Input Voltage 100 - 240~ / 50Hz, 60Hz

5. Market EU

6. Picture Size 32 inch

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

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

2. General Specification

No Item Specification Remark

1 Panel 32" TFT WXGA LCD

2 Frequency range H : 45 ~ 50Khz PC Input

V : 47 ~ 63Hz

3 Power consumption 26inch

≤ 4.6

32inch

≤ 5.54 W

4 LCD Module- LPL(32inch) Type Size 32"

760.0 x 450.0 x 42.8(mm)

(H)x(V)x(D)

Pixel Pitch 32" 170.25 x 510.75 x RGB(µm)

Pixel Format 1366 horiz. By 768 vert. Pixels

RGB strip arrangement

Coating Hard coating (3H), Anti-glare

reatment of the front polarizer

Back Light 32" 18EEFL

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3. Optical Feature(LCD Module-LPL)

4. Component Video Input (Y, P

B, PR

)

Specification

Proposed

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

1. 720x480 15.73 60.00 SDTV, DVD 480i

2. 720x480 15.63 59.94 SDTV, DVD 480i

3. 720x480 31.47 59.94 480p

4. 720x576 15.625 50.00 SDTV, DVD 625 Line

5. 720x576 31.25 50.00 HDTV 576p

6. 1280x720 45.00 50.00 HDTV 720p

7. 1280x720 44.96 59.94 HDTV 720p

8. 1920x1080 31.25 50.00 HDTV 1080i

9. 1920x1080 33.75 60.00 HDTV 1080i

10. 1920x1080 33.72 59.94 HDTV 1080i

No Item Specification Min. Typ. Max. Remark

1 Viewing Angle [CR>10] R/L, U/D 178, 178

2 Luminance Luminance(cd/m

) 320 400 32”

Variation 1.3 MAX/MIN

3 Contrast Ratio CR(32") 600 800 All White/All Black

D (With)(32") 1200 1600 All White/All Black

4 CIE Color Coordinates White Wx Typ 0.285 Typ LPL(26”)

Wy -0.03 0.293 +0.03

Red Xr 0.640

Yr 0.343

Green Xg 0.280

Yg 0.605

Blue Xb 0.145

Yb 0.065

6. RGB PC INPUT Mode Table

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

1. 720X400 31.468 70.08 28.321

2. 640X480 31.469 59.94 25.17 VESA

37.684 75.00 31.50

3. 800X600 37.879 60.31 40.00 VESA

46.875 75.00 49.50

4. 832X624 49.725 74.55 57.283

5. 1024X768 48.363 60.00 65.00 VESA(XGA)

56.470 70.00 75.00

60.123 75.029 78.75

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 67.50 60.00 148.50

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7. HDMI DTV Mode Table

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

1. 640X480 31.50 59.94 25.175 SDTV 480p 60Hz

2. 640X480 31.50 60 25.20 SDTV 480p 60Hz

3. 720X480 31.47 59.94 27.00 SDTV 480p 60Hz

4. 720X480 31.47 60 27.027 SDTV 480p 60Hz

5. 720X576 31.25 50.00 27.000 SDTV 576p 50Hz

6. 1280X720 45.00 50.00 74.176 HDTV 720p 50Hz HDCP

7. 1280X720 44.96 59.94 74.176 HDTV 720p 60Hz HDCP

8. 1280X720 44.96 60 74.250 HDTV 720p 60Hz HDCP

9. 1920X1080 28.13 50.00 74.250 HDTV 1080i 50Hz HDCP

10. 1920X1080 33.72 59.94 74.176 HDTV 1080i 60Hz HDCP

11. 1920X1080 33.75 60 74.250 HDTV 1080i 60Hz HDCP

12. 1920X1080 27 24 74.250 HDTV 1080P 24Hz HDCP

13. 1920X1080 56.25 50.00 148.500 HDTV 1080P 50Hz HDCP

14. 1920X1080 67.43 59.94 148.352 HDTV 1080P 60Hz HDCP

15. 1920X1080 67.50 60 148.500 HDTV 1080P 60Hz HDCP

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

1. 720X400 31.468 70.08 28.321

2. 640X480 31.469 59.94 25.17 VESA

37.684 75.00 31.50

3. 800X600 37.879 60.31 40.00 VESA

46.875 75.00 49.50

4. 832X624 49.725 74.55 57.283

5. 1024X768 48.363 60.00 65.00 VESA(XGA)

56.470 70.00 75.00

60.123 75.029 78.75

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 67.50 60.00 148.50

8. HDMI INPUT Mode Table

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ADJUSTMENT INSTRUCTION

1. Application Range

This spec. sheet is applied to all of the LD73A chassis manufactured at LG TV Plant all over the world.

2. Specification.

1) Because this is not a hot chassis, it is not necessary to use an isolation transformer. However, the use of isolation transformer will help to protect test instruments

2) Adjustment must be done in the correct sequence.

3) The adjustment must be performed at 25±5°C temperature and 65±10% relative humidity if there is no specified designation.

4) The input voltage of the receiver must be kept between 100-220V~, 50/60Hz.

5) Before adjustment, execute Heat-Run for 30 minutes at RF no signal.

3. Channel Memory

3.1. Setting up the LGIDS

1) Install the LGIDS

2) After installation, restart your PC.

3) Extract [files.zip] to folder [c:\LGIDS\files]

4) Start LGIDS.

3.2 Channel memory method

1) Press TILT key in Adjust remocon(Automatic setting).

2) Setting up like bottom figure [Confirmation: Press ADJ Key in the Adjust remote control. Select "System Control2" by using

D/E (CH+/-) key, and

press

A (ENTER). RS-232 Host : Gprobe, Baud Rate :

115200bps, Download:Cortez]

3) Connect RS232 cable .(Use the general RS-232C Twisted Serial Cable).

4) Operate LGIDS

5) Select "Hurricane" and "ALL" on Model dialog and check your connection in Communication dialog. (If your connection is ‘NG’, then set your PORT(COM1,2,3,…) correctly. If your connection has completed, you can see “Ready”)

6) Select proper CH_memory file(*.nvm) for each model at [Channel Download] => [Write Batch]. Next, select proper binary file(*.bin) including the CH information for each model at [Channel Download] => [NVRAM File].

7) Click the [Download] button. It means the completion of the CH memory download if all items show 'OK' and Status is changed by 'PASS' at the lower right corner of the window.

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4. EDID

* Caution

1) Use the proper signal cable for EDID Download

- Analog EDID : Pin3 exists

- Digital EDID : Pin3 exists

2) Never connect HDMI & D-sub Cable at the same time.

3) Use the proper cables below for EDID Writing.

4) Download HDMI1, HDMI2 separately because HDMI1 is different from HDMI2.

4.1. EDID Data

4.2. Data

(1) ANALOG (128 bytes)

(2) HDMI 1 (256 bytes)=>

=> Detail EDID Options are below (a, b, c, d, e-1, e-2, f-1, f-2)

(3) HDMI 2 (256 bytes)

=> Detail EDID Options are below (a, b, c, d, e-1, e-2, f-1, f-2)

(a) Product ID (b) Serial No: Controlled on production line. (c) Month, Year: Controlled on production line:

ex) Monthly : ‘09’ -> ‘09’

Year : ‘2006’ -> ‘10’

(d) Model Name(Hex):

(e-1, e-2, f-1, f-2) Checksum: Changeable by total EDID data.

Item

Manufacurer ID

Version

Revision

Condition

GSM

Digital : 1

Digital : 3

Data(Hex)

1E6D

D-sub to D-sub DVI-D to HDMI or HDMI ro HDMI

For HDMI EDID

0x000x01 0x02 0x03 0x04 0x05 0x06 0x07 0x08 0x09 0x0A 0x0B0x0C 0x0D 0x0E 0x0F

0x00 0 FF FF FF FF FF FF 0 1E 6D

0x01 131462778EAD9B0A357499C25

0x02 11 49 4B A5 6E 0 31 40 45 40 61 40 D1 C0 1 1

0x03 1 1 1 1 1 1 1B 21 50 A0 51 0 1E 30 48 88

0x04 35 0 BC 86 21 0 0 1C 26 36 80 A0 70 38 1F 40

0x05 50 20 85 4 BC 86 21 0 0 18

0x06 000FD

0x07 0 3C 4B 1D 43 0E 0 0A 20 20 20 20 20 20 0

-1

For Analog EDID

Dait(Hex)

000000FC0032364C4334442D5A410A202020

000000FC0032364C4337442D5A410A202020

000000FC0033374C4334442D5A410A202020

000000FC0033324C4337442D5A410A202020

000000FC0033374C4334442D5A410A202020

000000FC0033374C4337442D5A410A202020

000000FC0034324C4334442D5A410A202020

000000FC0034324C4337442D5A410A202020

Nome di modello

26LC4D-ZA

26LC7D-ZA

32LC4D-ZA

32LC7D-ZA

37LC4D-ZA

37LC7D-ZA

42LC4D-ZA

42LC7D-ZA

Nome di modello -1(Hex) -2(Hex) -1(Hex) -2(Hex)

26LC4D 90 CF CC BC

26LC7D 8D CC CC BC

32LC4D 93 D2 CC BC

32LC7D 90 CF CC BC

37LC4D 8E CD CC BC

37LC7D 8B CA CC BC

42LC4D 92 D1 CC BC

42LC7D 8F CE CC BC

0x000x01 0x02 0x03 0x04 0x05 0x06 0x07 0x08 0x09 0x0A 0x0B0x0C 0x0D 0x0E 0x0F

0x00 0 FF FF FF FF FF FF 0 1E 6D

0x01 1 3 80 46 27 78 EA D9 B0 A3 57 49 9C 25

0x02 11 49 4B A5 6E 0 31 40 45 40 61 40 D1 C0 1 1

0x03 1 1 1 1 1 1 2 3A 80 18 71 38 2D 40 58 2C

0x04 45 0 C4 8E 21 0 0 1E 1B 21 50 A0 51 0 1E 30

0x05 48 88 35 0 BC 86 21 0 0 1C

0x06 000FD

0x07 0 32 4B 1C 43 0F 0 0A 20 20 20 20 20 20 1

-2

0x00 2 3 21 F1 4E 2 11 1 3 12 13 4 14 5 21 1F

0x01 20 22 10 23 9 7 7 83 1 0 0 65 3 0C 0 10

0x02 0 1 1D 0 BC 52 D0 1E 20 B8 28 55 40 C4 8E 21

0x03 0 0 1E 1 1D 0 72 51 D0 1E 20 6E 28 55 0 C4

0x04 8E 21 0 0 1E 1 1D 80 D0 72 1C 16 20 10 2C 25

0x05 80 C4 8E 21 0 0 9E 8C 0A D0 90 20 40 31 20 0C

0x06 40 55 0 C4 8E 21 0 0 18 4E 1F 0 80 51 0 1E

0x07 30 40 80 37 0 BC 88 21 0 0 18 0 0 0 0

-1

0x000x01 0x02 0x03 0x04 0x05 0x06 0x07 0x08 0x09 0x0A 0x0B 0x0C0x0D 0x0E 0x0F

0x00 0 FF FF FF FF FF FF 0 1E 6D

0x01 1 3 80 46 27 78 EA D9 B0 A3 57 49 9C 25

0x02 11 49 4B A5 6E 0 31 40 45 40 61 40 D1 C0 1 1

0x03 1 1 1 1 1 1 2 3A 80 18 71 38 2D 40 58 2C

0x04 45 0 C4 8E 21 0 0 1E 1B 21 50 A0 51 0 1E 30

0x05 48 88 35 0 BC 86 21 0 0 1C

0x06 000FD

0x07 0 32 4B 1C 43 0F 0 0A 20 20 20 20 20 20 1

-2

0x00 2 3 21 F1 4E 2 11 1 3 12 13 4 14 5 21 1F

0x01 20 22 10 23 9 7 7 83 1 0 0 65 3 0C 0 10

0x02 0 1 1D 0 BC 52 D0 1E 20 B8 28 55 40 C4 8E 21

0x03 0 0 1E 1 1D 0 72 51 D0 1E 20 6E 28 55 0 C4

0x04 8E 21 0 0 1E 1 1D 80 D0 72 1C 16 20 10 2C 25

0x05 80 C4 8E 21 0 0 9E 8C 0A D0 90 20 40 31 20 0C

0x06 40 55 0 C4 8E 21 0 0 18 4E 1F 0 80 51 0 1E

0x07 30 40 80 37 0 BC 88 21 0 0 18 0 0 0 0

-2

* Before AV ADC Calibration, should be executed the “Tool option 1”

5. Select method of Tool option 1

1) Press ADJ Key in the Adjust remote control.

2) Select “Tool option 1” by using

D/E (CH+/-) key, and press

A(ENTER).

3)Select “Maker” by using D/E (CH+/-) key, and change the

module maker and. applied module classification by using

F/G (VOL+/-).

4) Select “Inch” by using

D/E (CH+/-) key, and change the

module according to the inch of model.

5) Select “Tool” by using

D/E (CH+/-) key, and change the

tool name according to the model.

(Inch of model : 26”, 32”, 37”, 42”, Applied module under the classification)

6. ADC Calibration

- System control RS-232 Host should be “PC” for adjustment.

- Before AV ADC Calibration, execute the “Module selection”.

6.1. Adjustment of RF/AV/S-VIDEO

(1) Required Equipments

- Remote controller for adjustment

- MSPG-925FS Pattern Generator (Which has Video Signal: 7 Color Bar Pattern shown in Fig. 1) => Model: 202 / Pattern: 65

(2) Method of Auto RF/AV/S-VIDEO Color Balance.

1) Input the Video Signal: 7 Color Bar signal into AV3.

2) Set the PSM to Dynamic mode in the Picture menu.

3) Press IN-START key on R/C for adjustment.

4) Press the

G(Vol.+) key to operate the set, then it

becomes automatically.

5) Auto-RGB OK means the adjustment is completed.

6.2 Adjustment of Component.

(1) Required Equipments

- Remote controller for adjustment

- MSPG-925FS Pattern Generator (Which has 720p/60Hz YPbPr output Pattern shown in Fig. 1 ) => Model:215/Pattern: 65

(2) Method of Auto Component Color Balance

1) Input the Component 720p/50Hz 7 Color Bar(MSPG-

925FS model:215, pattern:65) signal into Component.

2) Set the PSM to Dynamic mode in the Picture menu

3) Press the IN-START key on R/C for adjustment.

4) Press the

G(Vol.+) key to operate the set , then it

becomes automatically.

5) Auto-RGB OK means the adjustment is completed.

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ADC RF/AV/S-VIDEO Component RGB-PC

MSPG925F PALJ Model:215 (720P) Model: 3

INPUT SELECT AV3 Pattern:65 (1024*768 60Hz)

Model: 202 (PAL-BGDHI) 720P/50Hz Pattern: 65

Pattern: 65 7 Color Bar

PAL 7 Color Bar

Creatore Pollice Attrezzo

0 LPL 26 LD4D

64 LD7D

2 CMO LD4D

66 LD7D

4 LPL 32 LD4D

68 LD7D

8 LPL 37 LD4D

72 LD7D

12 LPL 42 LD4D

76 LD7D

<Fig. 1>

- 12 -

6.3 Adjustment of RGB

(1) Required Equipments

- Remote controller for adjustment

- MSPG-925F Pattern Generator (Which has XGA [1024*768] 60Hz 8 Color Bar pattern shown in Fig. 1)

(2) Method of Auto RGB Color Balance

1) Input the PC 1024x768@60Hz 100% Color Bar pattern

(MSPG-925F model:37, pattern:33) into RGB. (Using D-sub to D-sub cable)

2) Set the PSM to Dynamic mode in Picture menu.

3) Press the IN-START key on R/C for adjustment

4) Press the

G(Vol.+) key operate To set , then it becomes

automatically.

5) Auto-RGB OK means adjustment is completed.

* Before White-balance, the AV ADC should be done.

7. White Balance

* Test Equipment

Color Analyzer (CA-210/CH.9)

-> When you adjust LCD color temperature, on Color analyzer (CA-210), you should use Channel 9 which is Matrix compensated (White, Red, Green, Blue revised) by CS-1000 and adjust in accordance with White balance adjustment coordinate which is specified on the next.

* Color temperature standards according to CSM and Module

Cool : 11,000k Medium : 9,300k Warm : 6,500k

* White balance adjustment coordinate and color temperature

- PC (for communication through RS-232C)

-> UART Baud rate : 115200 bps

- Luminance Y AV : upper 150 cd/ß≥ (Typ : 350 cd/ß≥)

-> Applying to Cool, Medium, Warm mode

* Connecting picture of the measuring instrument (On

Automatic control ) Inside PATTERN is used when W/B is controlled. Connect to auto controller or push control R/C IN-START

-> Enter the mode of White-Balance, the pattern will come out.

* Auto-control interface and directions

1) Adjust in the place where the influx of light like floodlight around is blocked. (illumination is less than 10ux).

2) Adhere closely the Color Analyzer ( CA-210 ) to the module less than 10cm distance, keep it with the surface of the Module and Color Analyzer’s Prove vertically.(80~100°).

3) Aging time

- After aging start, keep the power on (no suspension of

power supply) and heat-run over 15 minutes.

- Using ‘no signal’ or ‘full white pattern’ or the others,

check the back light on.

7.1 Manual white Balance

- One of R Gain / G Gain / B Gain should be kept on 80, and others are controlled lowering from 80

1) Press ‘power on’ of the control R/C, set heat run to white by

pressing

G, and heat run over 15 minutes. (Set : RS-233

Host : PC, Baud Rate : 115200bps, Download : Cortez)

2) Zero Calibrate CA-210, and when controlling, stick the

sensor to the center of LCD module surface.

3) Double click In-start key on Controlling R/C and get in ‘white

balance’.

4) Set test-pattern on and display inside pattern. Control is

carried out on three color temperature, COOL, MEDIUM, WARM. (Control is carried out three times,)

5) When the R/G/B GAIN is 80 on OSD, it is the FULL

DYNAMIC Range of the Module. In order to control white balance without the saturation of FULL DYNAMIC Range and DATA, one of R Gain / G Gain / B Gain should be kept on 80, and other two is controlled lowering from 80.

* Color Temperature: Cool, Medium, Warm

1) When R GAIN is set to 80

- Control G GAIN and B GAIN by lowering from 80.

2) When B GAIN is set to 80

- Control R GAIN and G GAIN by lowering from 80.

3) When G GAIN is set to 80

- Control R GAIN and B GAIN by lowering from 80. One of R Gain / G Gain / B Gain should be kept on 80, and adjust other two lower than 80. (When R/G/B GAIN are all 80, it is the FULL DYNAMIC Range of Module)

Cool CS-1000 CA-210(CH 9)

x 0.276 0.276±0.002

y 0.283 0.283±0.002

∆uv 0.000 0.000

Medium CS-1000 CA-210(CH 9)

x 0.285 0.285±0.002

y 0.293 0.293±0.002

∆uv 0.000 0.000

Warm CS-1000 CA-210(CH 9)

x 0.313 0.313±0.002

y 0.329 0.329±0.002

∆uv 0.004 0.004

<Fig. 2> Connecting picture (On Automatic Control)

8. Set information(Serial No & Model name)

(1) Setting up like bottom figure (After setting white balance,

this is set)

1) Press ADJ Key in the Adjust remocon.

2) Select “System Control 2” by using

D/E(CH+/-) key,

and press

A(ENTER).

3) Using Adjust remocon, RS-232 Host & Baud Rate & Download value change (RS-232 Host:Gprobe, Baud Rate:115200bps, Download:Cortez)

(2) Bar-code scanning

1) Push the menu button in DTV mode. Select the STATION -> Diagnostics -> To set

2) Check the Serial Number.

- 13 -

- 14 -

TROUBLESHOOTING

1. Power Board

1-1. The full flowchart for the voltage output

Start check

Manufacture’s model

passage

1. Check the Power Off status.

Does the whole

screen appear?

Is it

identical to when the

power is off?

Yes

2. Check the Interface signal status.

Is the Interface

signal operating?

Yes

3. Check the St-by 5V signal circuit.

Does the

low pressure output

appear?

Does the

St-by 5V signal

appear?

Yes

4. Check the 5V Monitor signal circuit.

Does the

5V Monitor signal

appear?

7. Check the VSC Vs-ON signal

Does the

high tension output

appear?

Does the

VSC signal Vs-ON

appear?

Does the

high tension

output voltage

occur?

When

removing the Y B/D

Module input connector,

does output voltage

drop?

When the

Y, Z B/D Module

input connector, does Power

Board high tension

output voltage drop?

No No No

9. Check the Power Board Output high

tension circuit

Yes

10. Check the Z B/D Module output circuit

Yes

When

removing the Z B/D

Module input connector,

does output voltage

drop?

11. Check the Y B/D

Module output circuit

Yes

8. Check the Vs, Va

voltage output circuit.

Does the

Vs, Va voltage output

appear?

Yes

5. Check the VSC RL-ON signal.

Does the

VSC signal RL-ON

appear?

6. Check the VSC low pressure output

Does the

VSC low pressure

output appear?

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