LG 47LY760H-UA Schematic

Internal Use Only

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LED TV

SERVICE MANUAL

CHASSIS : LA4BZ

MODEL : 47LY760H 47LY760H-UA

CAUTION

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

Printed in KoreaP/NO : MFL68080447(1411-REV00)

CONTENTS

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

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

SPECIFICATION ....................................................................................... 4

ADJUSTMENT INSTRUCTION ................................................................ 8

TROUBLE SHOOTING ............................................................................ 17

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

EXPLODED VIEW .................................................................................. 23

SCHEMATIC CIRCUIT DIAGRAM ..............................................................

Only for training and service purposes

- 2 -

SAFETY PRECAUTIONS

IMPORTANT SAFETY NOTICE

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 shor ts of the circuitr y tha t 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 1 W), keep the resistor 10 mm 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 1 MΩ and 5.2 MΩ. 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 1.5 K / 10 watt resistor in parallel with a 0.15 uF 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

0.5 mA. 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

Only for training and service purposes

- 3 -

SERVICING PRECAUTIONS

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 conict 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 mod-

ule 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 specied 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 ammable mixture. Unless specied 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 xtures specied in this

service manual.

CAUTION: Do not connect the test xture 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 eld-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 classied as “anti-static” can generate electrical charges sufcient to damage ES devices.

5. Do not use freon-propelled chemicals. These can generate

electrical charges sufcient 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 oor can generate static electricity sufcient 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 1.25 cm) 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 ows 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.

Only for training and service purposes

- 4 -

IC Remove/Replacement

Some chassis circuit boards have slotted holes (oblong) through which the IC leads are inserted and then bent at 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.

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.

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.

Only for training and service purposes

- 5 -

SPECIFICATION

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

1. Application range

This spec sheet is applied LED TV with LA4BZ chassis

2. Test condition

Each part is tested as below without special notice.

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

2) Relative Humidity: 65 % ± 10 %

3) Power Voltage

Market Input voltage Frequency Remark

USA 110~240V 50/60Hz Standard Voltage of each

product is marked by models

4) Specification and performance of each parts are followed ea ch drawing and sp ec ification by pa rt 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 : UL, CSA, IEC specification

- EMC: FCC, ICES, IEC specification

4. General Specification

No Item Specication Result Remark

1. Receiving System ATSC / NTSC-M / 64 & 256 QAM

2. Available Channel 1) VHF : 02~13

3. Input Voltage AC 100 ~ 240V 50/60Hz Mark : 110V, 60Hz (N.America)

4. Market NORTH AMERICA

5. Screen Size 32 inch Wide (1366 × 768) HD + 60Hz

6. Aspect Ratio 16:9

7. Tuning System FS

8. Module LC320DUE-FGA3 / LC320DUE-FGA7 LGD 32LY760H-UA(UZ)

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

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

2) UHF : 14~69

3) DTV : 02-69

4) CATV : 01~135

5) CADTV : 01~135

39, 42, 47, 55 inch Wide (1920 × 1080) FHD + 60Hz

NC390DUN-VXBP1 / HC390DUN-VCHS3

LC420DUE-FGA3 / LC420DUE-FGA7 LGD 42LY760H-UA(UZ)

LC470DUE-FGA3 / LC470DUE-FGA7 LGD 47LY760H-UA(UZ)

LC550DUE-FGA3 / LC550DUE-FGA7 LGD 55LY760H-UA(UZ)

2) Humidity : ~ 80 %

2) Humidity : ~ 85 %

INX / HEESUNG

39LY760H-UA(UZ)

Only for training and service purposes

- 6 -

5. Supported video resolutions

5.1. Component 2D input(Y, CB/PB, CR/PR)

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

1. 720*480 15.73 60 13.5135 SDTV ,DVD 480I

2. 720*480 15.73 59.94 13.5 SDTV ,DVD 480I

3. 720*480 31.50 60 27.027 SDTV 480P

4. 720*480 31.47 59.94 27.0 SDTV 480P

5. 1280*720 45.00 60.00 74.25 HDTV 720P

6. 1280*720 44.96 59.94 74.176 HDTV 720P

7. 1920*1080 33.75 60.00 74.25 HDTV 1080I

8. 1920*1080 33.72 59.94 74.176 HDTV 1080I

9. 1920*1080 67.50 60 148.50 HDTV 1080P

10. 1920*1080 67.432 59.94 148.352 HDTV 1080P

5.2. HDMI Input (PC/DTV)

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

PC DDC

1. 640*350 31.468 70.09 25.17 EGA X

2. 720*400 31.469 70.08 28.32 DOS O

3. 640*480 31.469 59.94 25.17 VESA(VGA) O

4. 800*600 37.879 60.31 40.00 VESA(SVGA) O

5. 1024*768 48.363 60.00 65.00 VESA(XGA) O

6. 1152*864 54.348 60.053 80.002 VESA O

7. 1360*768 47.712 60.015 85.50 VESA (WXGA) X

8. 1280*1024 63.981 60.020 108.00 VESA (SXGA) O

9. 1920*1080 67.5 60 148.5 HDTV 1080P O

DTV

1 640*480 31.469 59.94 25.175 SDTV 480P

2 640*480 31.5 60 25.200 SDTV 480P

3 720*480 31.50 60 27.027 SDTV 480P

4 720*480 31.469 59.94 27.00 SDTV 480P

5 1280*720 45.00 60.00 74.25 HDTV 720P

6 1280*720 44.96 59.94 74.176 HDTV 720P

7 1920*1080 33.75 60.00 74.25 HDTV 1080I

8 1920*1080 33.72 59.94 74.176 HDTV 1080I

9 1920*1080 67.500 60 148.50 HDTV 1080P

10 1920*1080 67.43 59.94 148.352 HDTV 1080P

11 1920*1080 27.000 24.000 74.25 HDTV 1080P

12 1920*1080 26.97 23.97 74.176 HDTV 1080P

13 1920*1080 33.75 30.000 74.25 HDTV 1080P

14 1920*1080 33.716 29.976 74.176 HDTV 1080P

Only for training and service purposes

- 7 -

ADJUSTMENT INSTRUCTION

1. Application

This spec. sheet applies to LA4BZ Chassis applied LED TV all models manufactured in TV factory

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 protect test instrument. (2) Adjustment must be done in the correct order. (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 100~240V,

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

the adjustment when module is in the circumstance of over

15.

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.

※ Caution When still image is displayed for a period of 20 minutes or longer (especially where W/B scale is strong. Digital pattern 13ch and/or Cross hatch pattern 09ch), there can some afterimage in the black level area

4. MAIN PCBA Adjustments

4.1. ADC Calibration

- An ADC calibration is not necessary because MAIN SoC (LGE35230) is already calibrated from IC Maker

- If it needs to adjust manually, refer to appendix.

4.2. MAC Address, ESN Key and Widevine Key download

4.2.1. Equipment & Condition

1) Play file: keydownload.exe

4.2.2. Communication Port connection

1) Key Write: Com 1,2,3,4 and 115200 (Baudrate)

2) Barcode: Com 1,2,3,4 and 9600 (Baudrate)

4.2.3. Download process

1) Select the download items.

2) Mode check: Online Only

3) Check the test process

- US, C anada m odels : D ETECT - > M AC_WR IT E -> WIDEVINE_WRITE

- Korea, Mexico m od els: DET EC T -> MA C_WRITE -> WIDEVINE_WRITE

4) Play : START

5) Check of result: Ready, Test, OK or NG

4.2.4. Communication Port connection

1) Connect: PCBA Jig -> RS-232C Port == PC -> RS-232C

Port

3. Adjustment items

3.1. Main PCBA Adjustments

(1) ADC adjustment: Component 480i, 1080p (2) EDID downloads for HDMI

* Remark Above adjustm ent items can be also performed in Final Assembly if needed. Adjustment items in both PCBA and final assembly stages can be checked by using the INSTART Menu

-> 1.ADJUST CHECK.

3.2. Final assembly adjustment

▪ White Balance adjustment ▪ RS-232C functionality check ▪ Factory Option setting per destination ▪ Ship-out mode setting (In-Stop) ▪ GND and HI-POT test

3.3. Appendix

▪ Tool option menu, USB Download (S/W Update, Option and

Service only)

▪ Manual adjustment for ADC calibration and White balance ▪ Shipment conditions, Channel pre-set

4.2.5. Download(**ESN Key : 14Y_CS_M14)

1) US, Canada models (14Y LCD TV + MAC + Widevine +

ESN Key + DTCP Key + HDCP1.4 and HDCP2.0)

4.2.6. Inspection

- In INSTART menu, check these keys.

Only for training and service purposes

- 8 -

4.3. LAN Inspection

4.3.1. Equipment & Condition

▪ Each other connection to LAN Port of IP Hub and Jig

4.3.2. LAN inspection solution

▪ LAN Port connection with PCB ▪ Network setting at MENU Mode of TV (Installer Menu -> 119

-> 253 -> Menu)

▪ setting automatic IP ▪ Setting state confirmation

- If automatic setting is finished, you confirm IP and MAC Address.

4.4. LAN PORT INSPECTION(PING TEST)

4.4.1. Equipment setting

1) Play the LAN Port Test PROGRAM.

2) Input IP set up for an inspection to Test

Program. *IP Number : 12.12.2.2.

4.4.2. LAN PORT inspection (PING TEST)

1) Play the LAN Port Test Program.

2) connect each other LAN Port Jack.

3) Play Test (F9) button and confirm OK Message.

4) remove LAN CABLE

4.5. Model name & Serial number Download

4.5.1. Model name & Serial number D/L

■ Press “Power on” key of service remocon.(Baud rate :

115200 bps)

■ Connect RS232 Signal Cable to RS-232 Jack.

■ Write Serial number by use RS-232.

■ Must check the serial number at Instart menu

4.5.2. Method & notice

A. Serial number D/L is using of scan equipment. B. Setting of scan equipment oper ated by Manufacturing

Technology Group.

C. Serial number D/L must be conformed when it is produced

in production line, because serial number D/L is mandatory by D-book 4.0

Only for training and service purposes

※ Manual Download (Model Name and Serial Number) If the TV set is do wnloa ded By OTA or Servic e man, Sometimes model name or serial number is initialized.( Not always) There is impossible to download by bar code scan, so It need Manual download. a. Press the ‘instart’ key of ADJ remote controller. b. Go to the menu ‘16.Model Number D/L’ like below photo. c. Input the Factory model name(ex 42LY760H-UA) or Serial

number.

d. Check the model name Instart menu -> Factory name

displayed (ex 42LY760H-UA)

e. Check the Diagnostics (DTV country only) -> Buyer model

displayed (ex 42LY760H-UA)

- 9 -

4.6. EDID Download

4.6.1. 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”.

4.6.2. Equipment

(1) Since EDID data is embedded, EDID download JIG, HDMI

cable and D-sub cable are not need.

(2) Adjust by using remote controller.

4.6.3. EDID DATA

4.6.3.1. 2D PCM(US) _ XvYcc : 0n

4.6.3.2. 2D_10bit_PCM(US) _ xvYCC : off

HDMI EDID 2D_10bit_PCM(US)_xvYCC : off

HDMI EDID 2D_8bit_PCM(US)_xvYCC : off

▪Reference

- HDMI1 ~ HDMI3

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

mode.

ⓐ Product ID

HEX EDID Table DDC Function

0001 0100 Analog

0001 0100 Digital

ⓑ Serial No: Controlled on production line. ⓒ Month, Year: Controlled on production line:

ex) Monthly : ‘01’ -> ‘01’ Year : ‘2014’ -> ‘18’ ⓓ Model Name(Hex): LGTV

Chassis MODEL NAME(HEX)

LA4BZ 00 00 00 FC 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20

ⓔ Checksum(LG TV): Changeable by total EDID data.

ⓔ1 ⓔ2 ⓔ3

HDMI1 E7 E0 X

HDMI2 E7 D0 X

HDMI3 E7 C0 X

▪Reference

- HDMI1 ~ HDMI3

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

ⓐ Product ID

HEX EDID Table DDC Function

0001 0100 Analog

0001 0100 Digital

ⓑ Serial No: Controlled on production line. ⓒ Month, Year: Controlled on production line:

ex) Monthly : ‘01’ -> ‘01’ Year : ‘2014’ -> ‘18’ ⓓ Model Name(Hex): LGTV

Chassis MODEL NAME(HEX)

LA4BZ 00 00 00 FC 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20

ⓔ Checksum(LG TV): Changeable by total EDID data.

ⓔ1 ⓔ2 ⓔ3

HDMI1 E7 02 X

HDMI2 E7 F2 X

HDMI3 E7 E2 X

ⓕ Vendor Specific(HDMI)

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

ⓕ Vendor Specific(HDMI)

INPUT MODEL NAME(HEX)

HDMI1 67 03 0C 00 10 00 80 1E

HDMI2 67 03 0C 00 20 00 80 1E

HDMI3 67 03 0C 00 30 00 80 1E

Only for training and service purposes

- 10 -

5. Final Assembly Adjustment

5.1. White Balance Adjustment

5.1.1. Overview

5.1.1.1. W/B adj. Objective & How-it-works (1) Objective: To reduce each Panel’s W/B deviation (2) 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.

(3) Adj. condition: normal temperature

- Surrounding Temperature: 25±5 °C

- Warm-up time: About 5 Min

- Surrounding Humidity: 20% ~ 80%

- Before White balance adjustment, Keep power on status, don’t power off

5.1.1.2. 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: Color Analyzer (CA-210) probe should be

within 10cm and perpendicular of the module surface (80°~ 100°) (3) Aging time

- After Aging Start, Keep the Power ON status during 5

Minutes.

- In case of LCD, Back-light on should be checked using no

signal or Full-white pattern.

5.1.2. Equipment

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

CH14) (2) Adj. Computer (During auto adj., RS-232C protocol is

needed) (3) Adjust Remocon (4) Vi deo Sig nal Gen erator MSPG-925 F 720p/ 204-Gray

(Model: 217, Pattern: 49) ※ Color Analyzer Matrix should be calibrated using CS-1000

5.1.3. Equipment connection

Co lor Ana ly ze r

Pro be

RS -23 2C

Patt er n G en erat or

Signal S ourc e

* If TV internal pattern is used, not needed

5.1.4. Adjustment Command (Protocol)

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

RS-232C COMMAND

CMD DATA ID

Wb 00 00 Begin White Balance adj.

Wb 00 ff End White Balance adj.

(internal pattern disappears )

Explanation

RS-23 2C

Co m pu ter

RS-23 2C

(2) Adjustment Map

Adj. item Command

(lower caseASCII)

CMD1 CMD2 MIN MAX

Cool R Gain j g 00 C0

G Gain j h 00 C0

B Gain j i 00 C0

Medium R Gain j a 00 C0

G Gain j b 00 C0

B Gain j c 00 C0

Warm R Gain j d 00 C0

G Gain j e 00 C0

B Gain j f 00 C0

Data Range (Hex.)

5.1.5. Adjustment method

5.1.5.1. Auto WB calibration (1) Set TV in ADJ mode using P-ONLY key (or POWER ON

key)

(2) Place optical probe on the center of the display

- It need to check probe condition of zero calibration before adjustment.

(3) Connect RS-232C Cable (4) Select mode in ADJ Program and begin a adjustment. (5) When WB adjustment is completed with OK message,

check adjustment status of pre-set mode (Cool, Medium, Warm)

(6) Remove probe and RS-232C cable.

▪ W/B Adj. must begin as start command “wb 00 00” , and

finish as end command “wb 00 ff”, and Adj. offset if need

5.1.5.2. Manual adjustment.

■ Manual adj. method

1) Set TV in Adj. mode using POWER ON

2) Zero Calibrate the probe of Color Analyzer, then place it on

the center of LCD module within 10cm of the surface..

3) Press ADJ key -> EZ adjust using adj. R/C -> 9. White-

Balance then press the cursor to the right (KEY►). When KEY(►) is pre sse d 206 Gray in ter nal patt ern will be

displayed.

4) Adjust Cool modes

(1) Fix the one of R/G/B gain to 192 (default data) and

decrease the others.

(If G gain is adjusted over 172 and R and B gain less

than 192 , Adjust is O.K.)

(2) If G gain is less than 172, Increase G gain by up to 172,

and then increase R gain and G gain same amount of increasing G gain.

(3) If R gain or B gain is over 255, Readjust G gain less than

172, Conform to R gain is 255 or B gain is 255

5) Adjust two modes (Medium / Warm) Fix the one of R/G/B

gain to 192 (default data) and decrease the others.

6) Adj. is completed, Exit adjust mode using “EXIT” key on

Remote controller.

▪ If internal pattern is not available, use RF input. In EZ Adj.

menu 6.White Balance, you can select one of 2 Test-pattern: ON, OFF. Default is inner (ON). By selecting OFF, you can adjust using RF signal in 206 Gray pattern.

Only for training and service purposes

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

(1) Luminance: 204 Gray, 80IRE (2) Standard color coordinate and temperature using CS-1000

(over 26 inch)

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

▪ Luminance: 204 Gray ▪ Standard color coordinate and temperature using CS-1000

(over 26 inch)

Mode

Cool 0.271 0.270 13000K 0.0000

Medium 0.286 0.289 9300K 0.0000

Warm 0.313 0.329 6500K 0.0000

▪ S ta nda rd col or c oo rdi nate a nd t emp er atu re usi ng

CA-210(CH-14) – by aging time

(1) Normal line in Korea (From January to February)

1 0-2 286 295 301 314 328 354

2 3-5 284 290 299 309 326 349

3 6-9 282 287 297 306 324 346

4 10-19 279 283 294 302 321 342

5 20-35 276 278 291 297 318 337

6 36-49 274 275 289 294 316 334

7 50-79 273 272 288 291 315 331

8 80-119 272 271 287 290 314 330

9 Over 120 271 270 286 289 313 329

Coordinate

X Y

Aging time

(Min)

Temp △uv

Cool Medium Warm

X Y X Y X Y

271 270 286 289 313 329

(3) O/S Module(AUO, INX, Sharp, CSOT, BOE)

cool med warm

x y x y x y

spec 271 270 286 289 313 329

target 278 280 293 299 320 339

5.2. Magic Motion remote controller Check

5.2.1. Test equipment

- RF-remote controller for check, IR-KEY-CO DE remot e controller.

- Check AA battery before test. A recommendation is that a tester change battery every lots

5.2.2. Test

(1) Make pairing with TV set by pressing “Start key(Wheel

key)” on RCU. (2) Check a cursor on screen by pressing ‘Wheel key” of RCU (3) Stop paring with TV set by pressing “Back+ Home” key of

RCU

5.3. Wi-Fi MAC Address Check

5.3.1. Using RS232 Command

Command Set ACK

Transmission [A][l][][Set ID][][20][Cr] [O][K][x] or [N][G]

5.3.2. Check the menu on in-start

▪ S ta nda rd col or c oo rdi nate a nd t emp er atu re usi ng

CA-210(CH-14) – by aging time

(2) Normal line in Korea (From March to December)

Aging time

(Min)

1 0-2 282 289 297 308 324 348

2 3-5 281 287 296 306 323 346

3 6-9 279 284 294 303 321 343

4 10-19 277 280 292 299 319 339

5 20-35 275 277 290 296 317 336

6 36-49 274 274 289 293 316 333

7 50-79 273 272 288 291 315 331

8 80-119 272 271 287 290 314 330

9 Over 120 271 270 286 289 313 329

Only for training and service purposes

Cool Medium Warm

X Y X Y X Y

271 270 286 289 313 329

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5.4. Wi-Fi Test

Step 1) Turn on TV Step 2) Select Network Connection option in Network Menu. Installer menu -> 119 -> 253 -> Menu

Step 3) Select Start Connection Button in Network Connection

-> Wireless.

6. Check Commercial features

Commercial Feature

IR Out DC

Power

Out

(12V)

O X O O O O X

6.1. External SPK Out

6.1.1. Equipment & Condition

▪ Jig (Speaker out JIG) or Oscilloscope ▪ Power only mode

Ext

SPK

Out

RJP

(RJ-45

interface)

Pro:Idiom Pro:Idiom b-LAN

Step 4) If the system finds any AP like blow PIC, it is working

well

6.1.2. Check the speaker out

1) Connect the External Speaker : check the sound Connect oscilloscope, you can see this waveform

6.2. IR Out and DC Power Outlet (12V)

6.2.1. Equipment & Condition

▪ Jig (commercial check JIG) ▪ Special 232C Cable for commercial check Jig ▪ Power only mode ▪ PCB Mode (installer menu -> 118 -> 9 )

Only for training and service purposes

- 13 -

6.2.2. Check the power out & IR out – commercial check jig

(1) Connect each other RS232c port on the Commercial Check

JIG

(2) Press RED Color Button on SVC Remote-controller in

power only mode (or PCB Mode)

(3) Check the LED of jig board

- +12V LED (OK condition: Turn On)

- IR LED (OK condition: blinking)

6.2.3. Check the power out & IR out – mini jig

(1) Connect mini jig on RS232c port (2) Press RED Color Button on SVC Remote-controller in

power only mode (or PCB Mode)

(3) Check the LED of mini jig

6.3. RJP Check

6.3.1. Initial setting

(1) Select Power switch ( up ) as the picture (2) Set the Switch No.5 to ON (up) as the picture Others should be set to OFF (down)

6.3.2. Checking Guide

(1) Press the P-ONLY key of R/C (2) Press the Exit key of R/C (3) Connect with the TV through RJP cable (wait for the JIG

on) (4) RJP Pin check is carried out automatically (5) The result is shown as below (6) If RJP Pin check finished or you check other function, must

remove the RJP cable from TV

6.2.4. Check the power out & IR out – New jig

(1) Of the DFT process performance tests showing Waite

Massage automatically scan pause

(2) Adjust the remote control Press any Key IR Out Make sure

that only Nomal LED blinks. (3) ETC Key -> red Pressing the Info Key i) 5V Out Output 3 seconds ii) 5V output OFF iii) 12V Out Output 3 seconds iv) 12V output OFF(Given the ST output time adjustable) (4) Nomal LED, 5V LED, 12V LED flicker worker using the

PASS. (5) After the check is complete automatic test is initiated.

When checking the RJP(<-->) be sure to use a direct cable.

S/W switch direction: RJP <--> MAIN ASSY make sure that the insertion direction is right.

Only for training and service purposes

- 14 -

6.4. Pro:Idiom Check

(1) Connect the RF Cable (2) Turn to the Pro:Idiom channel (No. 96-1) (3) Check the video & sound ** Only displayed at “POWER ONLY” mode

7. AUDIO output check

7.1. Audio input condition

(1) RF input: Mono, 1KHz sine wave signal, 100% Modulation (2) CVBS, Component: 1KHz sine wave signal (0.4Vrms) (3) RGB PC: 1KHz sine wave signal (0.7Vrms)

7.2. Specification

No Item Min Typ Max Unit Remark

1 Audio

practical max Output, L/R

9.0

8.5

10.0

8.9

12.0

9.9WVrms

(1) Measurement

condition

- EQ/AVL/Clear Voice: Off

(2) Speaker (8Ω

Impedance)

8.3. Checkpoint

(1) Test voltage

- GND: 1.5KV/min at 100mA

- SIGNAL: 3KV/min at 100mA (2) TEST time: 1 second (3) TEST POINT

- GND Test = POWER CORD GND and SIGNAL CABLE GND.

- Hi-pot Test = POWER CORD GND and LIVE & NEUTRAL. (4) LEAKAGE CURRENT: At 0.5mArms

9. USB S/W Download (optional, Service only)

(1) Put the USB Stick to the USB socket (2) Automatically detecting update file in USB Stick

- If your downloaded program version in USB Stick is lower than that of TV set, it didn’t work. Otherwise USB data is automatically detected.

(3) Show the message “Copying files from memory”

(4) Updating is staring.

8. GND and HI-POT Test

8.1. GND & HI-POT auto-check preparation

(1) Check the POWER CABLE and SIGNAL CABE insertion

condition

8.2. GND & HI-POT auto-check

(1) Pallet moves in the station. (POWER CORD / AV CORD is

tightly inserted) (2) Connect the AV JACK Tester. (3) Controller (GWS103-4) on. (4) GND Test (Auto)

- If Test is failed, Buzzer operates.

- If Test is passed, execute next process (Hi-pot test). (Remove A/V CORD from A/V JACK BOX) (5) HI-POT test (Auto)

- If Test is failed, Buzzer operates.

- If Test is passed, GOOD Lamp on and move to next process

automatically.

(5) Updating Completed, The TV will restart automatically (6) If your TV is turned on, check your updated version and

Tool option.

* If downloading version is more high than your TV have, TV

can lost all channel data. In this case, you have to channel recover. If all channel data is cleared, you didn’t have a DTV/ ATV test on production line.

* After downloading, TOOL OPTION setting is needed again. (1) Push "IN-START" key in service remote controller. (2) Select "Tool Option 1" and Push “OK” button. (3) Punch in the number. (Each model has their number.)

Only for training and service purposes

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