LG 55LH95QD Schematic

TV COM1 COM2AV1 AV2 RGB

WIRELESS

1 2 3 4

LCD TV

SERVICE MANUAL

CAUTION

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

CHASSIS : LC91E

MODEL : 55LH95QD

North/Latin America http://aic.lgservice.com Europe/Africa http://eic.lgservice.com Asia/Oceania http://biz.lgservice.com

Internal Use Only

Printed in KoreaP/NO : MFL60021630 (0909-REV00)

55LH95QD-AA

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LGE Internal Use Only

CONTENTS

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

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

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

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

MEDIA-BOX SETUP GUIDE .................................................................. 14

EXPLODED VIEW .................................................................................. 15

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

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LGE Internal Use Only

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 Exploded View. 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

LGE Internal Use Only

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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 circuit board 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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LGE Internal Use Only

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.

LGE Internal Use Only

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4. General Specification(TV)

No. Item Specification Remark

1. Receiving System Analog : Upper Heterodyne

Digital : COFDM, QAM

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

3. Market China

4. Screen Size 55 inch Wide (1920 x 1080) FHD

5. Aspect Ratio 16:9

6. Broadcasting systme 1) PAL-DK

2) PAL-I

3) NTSC-M

4) DTMB

5) DVB-C

7. LCD Module LC550WUL-SBT1 LGD

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

2) Humidity : ~ 80 %

9. Storage Environment 1) Temp : -20 ~ 60 deg

2) Humidity : 0 ~ 85 %

1. Application Range

This specification sheet is applied to the LCD TV used LC91E chassis.

2. Specification

Each part is tested as below without special appointment

1) Temperature : 25 ± 5°C (77 ± 9ºF), CST : 40 ± 5ºC

2) Relative Humidity : 65 ±10%

3) Power Voltage : Standard input voltage (100-240V@ 50/60Hz) * Standard Voltage of each products is marked by models

4) Specification and performance of each parts are followed each drawing and specification by part number in accordance with BOM.

5) The receiver must be operated for about 20 minutes prior to the adjustment.

3. Test method

1) Performance : LGE TV test method followed.

2) Demanded other specification

- Safety : CE, IEC specification

- EMC : CE, IEC specification

SPECIFICATION

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

LGE Internal Use Only

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5. Chroma & Brightness

No Item Min. Typ. Max. Unit Remark

1 Max Luminance 400 500 cd/m

(Center 1-point / Full White Pattern)

2 Luminance uniformity 77 % Full white

3 Response Time Gray-to-Gray 5 8 ms Picture mode : Cinema

MPRT 8 10 ms

4 Color coordinate RED X 0.645 Typ.

Y 0.330 ± 0.03

GREEN X 0.297

Y 0.629 Color Coordinate Measurement

BLUE X 0.146 Mode : PC

Y 0.054 PSM : Standard

WHITE X 0.279 CSM : Medium

Y 0.292

5 Contrast ratio 900:1 1300:1 Local Dimming ON

(Except RGB/HDMI-PC)

4,500,000 5,000,000 DCR(Except RGB/HDMI-PC)

6 Color Temperature Cool X 0.254 0.269 0.284 <Test Condition>

Y 0.258 0.273 0.288 85% Full white pattern

Medium X 0.270 0.285 0.300

Y 0.278 0.293 0.308

Warm X 0.298 0.313 0.328

Y 0.314 0.329 0.344

7 Color Distortion, DG 10 %

8 Color Distortion, DP 10 deg

9 Color S/N, AM/FM 43.0 dB

10 Color Killer Sensitivity -80 dBm

6. Component Video Input (Y, CB/PB, CR/PR)

No.

Specification

Remark

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

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 720x480 31.50 60.00 480p

5 720x576 15.625 50.00 SDTV, DVD 625 Line

6 720x576 31.25 50.00 HDTV 576p

7 1280x720 45.00 50.00 HDTV 720p

8 1280x720 44.96 59.94 HDTV 720p

9 1280x720 45.00 60.00 HDTV 720p

10. 1920x1080 31.25 50.00 HDTV 1080i

11. 1920x1080 33.75 60.00 HDTV 1080i

12. 1920x1080 33.72 59.94 HDTV 1080i

13. 1920x1080 56.250 50 HDTV 1080p

14. 1920x1080 67.43/67.5 59.94/60 HDTV 1080p

LGE Internal Use Only

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No. Specification

Proposed Remark

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

1. 720*400 31.468 70.08 28.321 HDCP

2. 640*480 31.469 59.94 25.17 VESA HDCP

3 800*600 37.879 60.31 40.00 VESA HDCP

4. 1024*768 48.363 60.00 65.00 VESA(XGA) HDCP

5. 1280*768 47.78 59.87 79.5 WXGA HDCP

6. 1360*768 47.72 59.8 84.75 WXGA HDCP

7. 1280*1024 63981 60.0 108.875 SXGA HDCP

8. 1920*1080 67.5 60 148.5 WUXGA HDCP

7. RGB input (PC)

8. HDMI input (PC/DTV)

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

DTV

1. 720*480 31.469 / 31.5 59.94 / 60 27.00/27.03 SDTV 480P

2. 720*576 31.25 50 54 SDTV 576P

3. 1280*720 37.500 50 74.25 HDTV 720P

4. 1280*720 44.96 / 45 59.94 / 60 74.17/74.25 HDTV 720P

5. 1920*1080 33.72 / 33.75 59.94 / 60 74.17/74.25 HDTV 1080I

6. 1920*1080 28.125 50.00 74.25 HDTV 1080I

7. 1920*1080 26.97 / 27 23.97 / 24 74.17/74.25 HDTV 1080P

8. 1920*1080 33.716 / 33.75 29.976 / 30.00 74.25 HDTV 1080P

9 1920*1080 56.250 50 148.5 HDTV 1080P

10. 1920*1080 67.43 / 67.5 59.94 / 60 148.35/148.50 HDTV 1080P

1. 720*400 31.468 70.08 28.321 HDCP

2. 640*480 31.469 59.94 25.17 VESA HDCP

3 800*600 37.879 60.31 40.00 VESA HDCP

4. 1024*768 48.363 60.00 65.00 VESA(XGA) HDCP

5. 1280*768 47.78 59.87 79.5 WXGA HDCP

6. 1360*768 47.72 59.8 84.75 WXGA HDCP

7. 1280*1024 63.981 60.0 108.875 SXGA HDCP

8. 1920*1080 67.5 60 148.5 WUXGA HDCP

1. Application Object

This specification sheet applied to LC91E Chassis applied LCD TV all models manufactured in TV factory.

2. Notes

(1) Because this is not a hot chassis, it is not necessary to use

an isolation transformer. However, the use of isolation

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

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

there is no specific designation. (4) The input voltage of the receiver be must kept 100V-240V,

50/60Hz when adjusting. (5) The receiver must be operated for about 5 minutes prior to

the adjustment when module is in the circumstance of over

15ºC.

In case of keeping module is in the circumstance of 0°C, it should be placed in the circumstance of above 15°C for 2 hours In case of keeping module is in the circumstance of below

-20°C, it should be placed in the circumstance of above 15°C for 3 hours,.

(6) The TV and the Media-box must be connected by Wireless

or Wire. : Even if there is only the TV set, it is possible to

adjust the White-balance

- Entry process of White Pattern

1) Press the POWER ON key on R/C for adjustment.

2) Press the ADJ key on R/C and enter EZ ADJUST.

3) Select ‘7. Test Pattern’ by using CH +/- key and select “White” by using VOL +/-.

* Set is activated HEAT RUN without signal generator in this

mode.

* Single color pattern (RED/BLUE/GREEN) of HEAT RUN

mode uses to check panel.

Caution : If the still image is displayed more than 20 minutes(Especially digital, cross hatch pattern), an afterimage in the black level area.

3. Adjustment items

- Check the TOOL OPTION prior to adjustment. If the TOOL OPTION is incorrect, correct it then execute the power off/on to apply the modification (refer to 7.3 TOOL OPTION)

- In case of this chassis, Set the Media-box option in connection with Wireless or Wire. Set the TV option in HDMI5 mode.(remove the wired HDMI cable)

3.1 Board-level adjustment

- ADC adjustment (Media-Box ONLY)

- EDID/DDC download

* Manual ADC Confirmation : [IN-START] -> [1.Adjust Check]

- After Board level adjustment, set volume setting value 0

3.2 Final assembly adjustment

- White Balance adjustment

- RS-232C functionality check

- EYE-Q TEST

- Wireless Pairing (it is worked in the Wired status)

- Shipment mode setting (In-Stop)

4. Board-level adjustment

4.1. ADC(LGE3369) adjustment

(1) Overview

ADC adjustment is needed to find the optimum black level and gain in Analog-to-Digital device and to compensate RGB deviation.

(2) Equipment & Condition

1) Jig (RS-232C protocol)

2) External/Internal PATTERN

- Adjustment : ADC Comp Comp 480i

-> Using a Pattern Generator(MSPG-925FA - Model: 209 ,Pattern:65 or etc), enter component signals like below image into the Media-box.

- Adjustment : ADC Comp 1080p / RGB

-> use the Internal Pattern

* External input Image

LGE Internal Use Only

- 9 -

ADJUSTMENT INSTRUCTION

(3) Adjustment

1) Method

- Using RS-232, adjust items listed in 3.1 in the other shown in “4.1.3.3”

2) Adj. protocol

Ref.) ADC Adj. RS232C Protocol_Ver1.0

3) Adj. order

- aa 00 00 [Enter ADC adj. mode]

- xb 00 40 [Change input source to Component1(480i)]

- ad 00 10 [Adjust 480i Comp1]

- xb 00 60 [Change input source to RGB(1024*768)]

- ad 00 10 [Adjust 1024*768 RGB]

- ad 00 90 End adj.

4.2. EDID(The Extended Display Identification Data)/DDC(Display Data Channel) download

(1) Overview

It is a VESA regulation. A PC or a MNT will display an optimal resolution through information sharing without any necessity of user input. It is a realization of “Plug and Play”.

(2) Equipment

- Adjust remote control

- Since embedded EDID data is used, EDID download JIG, HDMI cable and D-sub cable are not need.

(3)Download method

1) Press Adj. key on the Adj. R/C, then select “8.EDID

D/L”, By pressing Enter key, enter EDID D/L menu.

2) Select [Start] button by pressing Enter key, HDMI1 /

HDMI2 / HDMI3 / HDMI4 / RGB are Writing and display OK or NG.

* For HDMI5 EDID D/L, Change the TV input mode into

HDMI5 mode then using Adj. R/C, download the HDMI5 EDID.

* HDMI5 / RGB can be downloaded by JIG and cable.

(4) EDID DATA

1) RGB EDID data

2) HDMI EDID data

* Detail EDID Options are below

ⓐ Product ID

ⓑ Serial No: Controlled on production line. ⓒ Week, Year: Fixed as S/W released day

Week 0x02(2), Year : 0x13(2009)

ⓓ Model Name(Hex):

ⓔ Checksum: Changeable by total EDID data.

RGB 1D HDMI1 04 F9 HDMI2 04 E9 HDMI3 04 D9 HDMI4 04 C9

- 10 -

LGE Internal Use Only

Protocol Command Set ACK

Enter adj. mode aa 00 00 a 00 OK00x

Source change xb 00 40 b 00 OK40x (Adjust 480i Comp1 )

xb 00 60 b 00 OK60x (Adjust 1024*768 RGB)

Begin adj. ad 00 10

Return adj. result OKx (Case of Success)

NGx (Case of Fail)

Read adj. data (main) (main)

ad 00 20 000000000000000000000000007c007b006dx

(sub) (Sub)

ad 00 21 000000070000000000000000007c00830077x

Confirm adj. ad 00 99 NG 03 00x (Fail)

NG 03 01x (Fail)

NG 03 02x (Fail)

OK 03 03x (Success)

End adj. aa 00 90 a 00 OK90x

0123456789ABCDEF

00 00 FF FF FF FF FF FF 00 1E 6D ⓐⓑ 10 ⓒ 01 03 68 73 41 78 0A CF 74 A3 57 4C B0 23

20 09 48 4C A1 08 00 81 80 61 40 45 40 31 40 01 01

30 01 01 01 01 01 01 02 3A 80 18 71 38 2D 40 58 2C

40 45 00 7E 8A 42 00 00 1E 01 1D 00 72 51 D0 1E 20

50 6E 28 55 00 7E 8A 42 00 00 1E 00 00 00 FD 00 3A 60 3E 1E 53 10 00 0A 20 20 20 20 20 20 ⓓ 70 ⓓ 00 ⓔ

80 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF

90 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF

A0 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF

B0 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF

C0 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF

D0 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF

E0 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF

F0 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF

0123456789ABCDEF

00 00 FF FF FF FF FF FF 00 1E 6D ⓐⓑ 10 ⓒ 01 03 80 73 41 78 0A CF 74 A3 57 4C B0 23

20 09 48 4C A1 08 00 81 80 61 40 45 40 31 40 01 01

30 01 01 01 01 01 01 02 3A 80 18 71 38 2D 40 58 2C

40 45 00 7E 8A 42 00 00 1E 01 1D 00 72 51 D0 1E 20

50 6E 28 55 00 7E 8A 42 00 00 1E 00 00 00 FD 00 3A 60 3E 1E 53 10 00 0A 20 20 20 20 20 20 ⓓ 70 ⓓ 01 ⓔ

80 02 03 26 F1 4E 10 1F 84 13 05 14 03 02 12 20 21 90 22 15 01 26 15 07 50 09 57 07 ⓕ A0 ⓕ E3 05 03 01 01 1D 80 18 71 1C 16 20 58 2C

B0 25 00 7E 8A 42 00 00 9E 01 1D 00 80 51 D0 0C 20

C0 40 80 35 00 7E 8A 42 00 00 1E 02 3A 80 18 71 38

D0 2D 40 58 2C 45 00 7E 8A 42 00 00 1E 66 21 50 B0

E0 51 00 1B 30 40 70 36 00 7E 8A 42 00 00 1E 00 00 F0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ⓔ

Item

Manufacturer ID

Version

Revision

Condition

GSM

Digital : 1

Digital : 3

Data(Hex)

1E6D

Model Name HEX EDID Table DDC Function

FHD Model 0001 01 00 Analog/Digital

MODEL MODEL NAME(HEX)

all 00 00 00 FC 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20

ⓕ Vendor Specific(HDMI)

* Reference

- HDMI1 ~ HDMI4 / RGB: Media-Box, HDMI5: TV

- In the data of EDID, bellows may be different by S/W or Input mode.

G VV: Week Manufacture G WW: Year Manufacture G XX: C/S G YY: Physical address

(Generally, HDMI1 : 10 00, HDMI2 : 20 00 ¶)

5. Final assembly adjustment

5.1. White Balance Adjustment

5.1.1. Overview

• W/B adj. Objective & How-it-works

- Objective: To reduce each Panel’s W/B deviation

- How-it-works : When R/G/B gain in the OSD is at 192, it means the panel is at its Full Dynamic Range. In order to prevent saturation of Full Dynamic range and data, one of R/G/B is fixed at 192, and the other two is lowered to find the desired value.

5.1.2. Equipment

(1) Color Analyzer: CA-210 (NCG: CH 9 / WCG: CH12 / LED

Module : CH14)

(2) Adj. Computer(During auto adj., RS-232C protocol is

needed) (3) Adjust Remote control (4) Video Signal Generator MSPG-925F 720p/216-Gray

(Model:217, Pattern:78)

-> Only when internal pattern is not available

• Color Analyzer Matrix should be calibrated using CS-1000

5.1.3. Equipment connection map

5.1.4. Adj. Command (Protocol)

(1) Protocol

- LEN: Number of Data Byte to be sent

- CMD: Command

- VAL: FOS Data value

- CS: Checksum of sent data

- A: Acknowledge Ex) [Send: JA_00_DD] / [Ack: A_00_okDDX]

(2) RS-232C Command used during auto-adj.

Ex) wb 00 00 -> Begin white balance auto-adj.

wb 00 10 -> Gain adj. ja 00 ff -> Adj. data jb 00 c0 ... ... wb 00 1f -> Gain adj. completed

*(wb 00 20(Start), wb 00 2f(completed)) -> Off-set adj.

wb 00 ff -> End white balance auto-adj.

(3) Adjustment Map

- 11 -

LGE Internal Use Only

Color Analyzer

Comp uter

Pattern Generator

RS- 232C

RS-232C

Probe

Signal Source

* If TV internal pattern is used, not needed

Connection Diagram of Automatic Adjustment

RS-232C COMMAND

Meaning

[CMD ID DATA]

wb 00 00 Begin White Balance adj.

wb 00 10 Gain adj.(internal white pattern)

wb 00 1f Gain adj. completed

wb 00 20 Offset adj.(internal white pattern)

wb 00 2f Offset adj. completed

wb 00 ff End White Balance adj.(Internal pattern disappears)

INPUT MODEL NAME(HEX)

HDMI1 67 03 0C 00 10 00 B8 2D

HDMI2 67 03 0C 00 20 00 B8 2D

HDMI3 67 03 0C 00 30 00 B8 2D

HDMI4 67 03 0C 00 40 00 B8 2D

HDMI5 67 03 0C 00 50 00 B8 2D

LEN CMD VAL

ITEM Command Data Range Default

(Hex.) (Decimal)

Cmd 1 Cmd 2 Min Max

Cool R-Gain j g 00 C0

G-Gain j h 00 C0

B-Gain j i 00 C0

R-Cut

G-Cut

B-Cut

Medium R-Gain j a 00 C0

G-Gain j b 00 C0

B-Gain j c 00 C0

R-Cut

G-Cut

B-Cut

Warm R-Gain j d 00 C0

G-Gain j e 00 C0

B-Gain j f 00 C0

R-Cut

G-Cut

5.1.5. Adj. method

(1) Auto adj. method

1) Set TV in adj. mode using POWER ON key./

2) Zero calibrate probe then place it on the center of the Display.

3) Connect Cable(RS-232C)

4) Select mode in adj. Program and begin adjustment.

5) When adj. is complete (OK Sing), check adj. status pre mode. (Warm, Medium, Cool)

6) Remove probe and RS-232C cable to complete adj.

* Adjustment must be begun “wb 00 00”, and ended “wb 00

ff”. If it is needed, adjust the Offset value.

(2) Manual adj. method

1) Set TV in Adj. mode using POWER ON key.

2) Press ADJ key ‡ EZ ADJUST using adj. R/C.

3) Using CH +/- key, select [7.Test Pattern] then press ENTER to place in HEAT RUN mode and wait for 30 minutes.

4) Check a zero calibration for the probe of color analyzer, then place it on the center of LCD module within 10cm of the surface.

5) Press ADJ key -> [6.White Balance] then press the cursor to the right (

G) key.

(When

G is pressed, Full White internal pattern will be

displayed)

6) One of R Gain / G Gain / B Gain should be fixed at 192, and the rests will be lowered to meet the desired value.

7) Adj. is performed in COOL, MEDIUM, WARM 3 modes of color temperature.

* Adj. condition and cautionary items

1) Lighting condition in surrounding area

Surrounding lighting should be lower 10 lux. Try to isolate adj. area into dark surrounding.

2) Probe location

- LCD : Color Analyzer (CA-210) probe should be within 10cm and perpendicular of the module surface (80°~ 100°)

• In case of LCD, Back Light On should be checked using no signal or Full white pattern.

5.1.6. Reference (White Balance Adj. coordinate and color temperature)

• Luminance: 216 Gray

• Standard color coordinate and temperature using CS-1000

• Standard color coordinate and temperature using CA210(CH 9)

5.2. EYE-Q function check

Step 1) Turn on TV Step 2) Press EYE key of Adj. R/C Step 3) Cover the Eye Q II sensor on the front of the using

your hand and wait for 6 seconds

Step 4) Confirm that R/G/B value is lower than 10 of the “Raw

Data (Sensor data, Back light)”. If after 6 seconds, R/G/B value is not lower than 10, replace Eye Q II sensor.

Step 5) Remove your hand from the Eye Q II sensor and wait

for 6 seconds.

Step 6) Confirm that “ok” pop up. If change is not seen,

replace Eye Q II sensor.

5.3. Wireless Pairing

(1) Overview

For the wireless connection between TV and Media-Box, Select the communication channel and fix the Mac address.

* The adjustment should be executed with being Wired.

(HDMI cable connection)

(2) Method

1) Press IN-START key on adj. R/C then select [9.Wireless Check].

2) After Choosing the LRP Channel, Set OK in Paired Status.

3) Remove the HDMI cable and turn off/on TV and Mediabox.

4) Check the Wireless status.

5.4. Shipment mode check(In-stop)

After final inspection, press IN-STOP key of the Adj. R/C and check that the unit goes to Stand-by mode.

LGE Internal Use Only

- 12 -

Mode Color Coordination Temp ∆UV

COOL 0.269 0.273 13000K 0.0000

MEDIUM 0.285 0.293 9300K 0.0000

WARM 0.313 0.329 6500K 0.0000

H/R Cool Medium Warm

Time(Min) X Y X Y X Y

269 273 285 293 313 329

1 0-4 279 294 295 312 321 346

2 5-9 277 289 293 309 319 343

3 10-14 275 285 291 306 318 340

4 15-19 273 282 289 303 317 337

5 20-24 272 279 288 300 316 335

6 25-29 271 277 287 297 315 333

7 30-39 270 275 286 295 314 331

8 40- 269 273 285 293 313 329

LGE Internal Use Only

- 13 -

6. GND and Internal Pressure check

6.1. Inspection Mmthod

1) GND & Internal Pressure auto-check preparation

- Check that Power Cord is fully inserted to the SET. (If loose, re-insert)

2) Perform GND & Internal Pressure auto-check

- Unit fully inserted Power cord, Antenna cable and A/V arrive to the auto-check process.

- Connect D-terminal to AV JACK TESTER

- Auto CONTROLLER(GWS103-4) ON

- Perform GND TEST

- If NG, Buzzer will sound to inform the operator.

- If OK, changeover to I/P check automatically. (Remove CORD, A/V form AV JACK BOX)

- Perform I/P test

- If NG, Buzzer will sound to inform the operator.

- If OK, Good lamp will lit up and the stopper will allow the pallet to move on to next process.

6.2. Checkpoint

• TEST voltage

- GND: 1.5KV/min at 100mA

- SIGNAL: 3KV/min at 100mA

• TEST time: 1 second

• TEST POINT

- GND TEST = POWER CORD GND & SIGNAL CABLE METAL GND

- Internal Pressure TEST = POWER CORD GND & LIVE & NEUTRAL

• LEAKAGE CURRENT: At 0.5mArms

7. ETC.

7.1. USB S/W Download (option)

(1) Overview

USB download allows fast S/W upgrade in SVC areas or during Board-level production.

(2) Dowunload method

1) After Set on, confirm that image is displayed. (For

updating Monitor, first input change to HDMI5)

2) Insert USB memory stick that contains the S/W and after

a few seconds, Upgrade OSD is displayed.

(If the version of download file in USB is lower than the current version, Upgrade OSD is not displayed)

3) After download is finished, automatically Power off/on is

executed.

(If auto power on/off is not executed, perform the power off/on manually)

4) S/W upgrade is completed and eject USB Memory Stick

form USB jack.

5) By pressing IN-START key on the adj. R/C, check the

S/W version.

7.2. TOOL OPTION

(1) Overview

- The model name and spec. will be confirmed and modified by adj. menu.

- No Modification at discretion

(2) Confirm/Modify method

1) By Pressing ADJ key, [EZ ADJUST] -> [0.Tool Option1].

2) In the Tool Option1, It is possible to modify the Inch/

Tool/ Module maker/ Module revision.

3) Contents of Tool Option 1~4 are like the section 7.2.(3)

* Entering into IN-START mode, [1.Adjust Check] shows

Tool Options.

(3) Contents of Tool Option

1) Tool Option1

- Inch

- Tool

- Maker

- Module Rev.

2) Tool Option2

- HDMI Count

- HDMI Switch IC

- Component Count

- S-Video

- RCA AV Count

- Scart Count

3) Tool Option3

- EMF(JPEG,MP3)

- Divx

- Bluetooth

- Digital Eye.

- Headphone

- OPC

- EPA

- e-Manual

- Audio Amp

- LED Type

- New E-Con

4) Tool Option4

- Clear QAM

- Local Dimming

- THX

- Digital Demod

- Analog Demod

- THX Media Director

7.3. Tool Option Setting

Tool Option4 should be set to TV ‘51840’, Media-Box ‘51872’ as a manufacturing default. By ‘IN-STOP’ to make shipping condition, it will be set to TV ‘19072’, Media-Box ‘19104’ automatically.

MODEL Display Tool opt1 Tool opt2 Tool opt3 Tool opt4

55LH95QD-CB TV 45955 4184 38 51840

Media-Box 45955 4440 51366 51872

1. When setting up Media-Box at the cabinet and on th surface, etc

(1) If the surface distance becomes more than 20cm at [fig. 1],

wireless connection difficulty could be happened.

(2) Set up Media-Box making the surface distance as less than

20cm as possible.

(3) If the surface distance becomes more than 20cm unavoidably at

[fig. 2], a noise could be generated on the screen due to the drop of wireless connection sensitivity.

(4) Improve wireless connection sensitivity by raising a wireless

emission angle using rubber (providing accessory).

2. When setting up Media-Box and TV, facing each other

If the surface distance on which Media-Box is placed becomes more than 20cm, wireless connection sensitivity could be dropped, and it is recommended to use rubber.

3. In case setting up by using a reflection

The whole reflected distance shouldn’t be over 10m, and if using a rubber according to the condition how Media-Box is placed, wireless connection sensitivity improves. (a+b distance should be smaller than 10m.)

- 14 -

LGE Internal Use Only

MEDIA-BOX SETUP GUIDE

Surface Distance

More than 20cm

Sofa

[Fig. 3] Attach rubber to the lower part of Media-Box.

- 15 -

LGE Internal Use Only

300

200

200N

501

510

511

900

A10

531

530

400

800

801

802

541

540

542

803

550

500

310

120

121

590

532

700

710

770

780

790

720

730

750

740

760

804

543

A22

LV1

LV2

Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by in the Schematic Diagram and EXPLODED VIEW. 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.

IMPORTANT SAFETY NOTICE

EXPLODED VIEW

LGE Internal Use Only

+ 53 hidden pages