Руководство по эксплуатации LG Electronics LG - Life's Good Flat Panel Television 47LT760H-ZA

Руководство по эксплуатации для устройства LG Electronics LG - Life's Good Flat Panel Television 47LT760H-ZA

Устройство: LG Electronics LG - Life's Good Flat Panel Television 47LT760H-ZA
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Руководство по эксплуатации LG Electronics LG - Life's Good Flat Panel Television 47LT760H-ZA
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Краткое содержание страницы № 1

Internal Use Only
North/Latin America http://aic.lgservice.com
Europe/Africa http://eic.lgservice.com
Asia/Oceania http://biz.lgservice.com
LED LCD TV
SERVICE MANUAL
CHASSIS : LD2FF
MODEL : 47LT760H 47LT760H-ZA
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO : MFL67659804 (1210-REV00) Printed in Korea

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CONTENTS CONTENTS .............................................................................................. 2 SAFETY PRECAUTIONS ........................................................................ 3 SERVICING PRECAUTIONS .................................................................... 4 SPECIFICATION ....................................................................................... 6 ADJUSTMENT INSTRUCTION ................................................................ 9 TR

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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 Leakage Current Hot Check

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SERVICING PRECAUTIONS CAUTION: Before servicing receivers covered by this service 2. After removing an electrical assembly equipped with ES manual and its supplements and addenda, read and follow the devices, place the assembly on a conductive surface such as SAFETY PRECAUTIONS on page 3 of this publication. aluminum foil, to prevent electrostatic charge buildup or expo- NOTE: If unforeseen circumstances create conflict between the sure of the assembly. following servicing precautions and any

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IC Remove/Replacement 3. Solder the connections. Some chassis circuit boards have slotted holes (oblong) through CAUTION: Maintain original spacing between the replaced which the IC leads are inserted and then bent flat against the cir- component and adjacent components and the circuit board to cuit foil. When holes are the slotted type, the following technique prevent excessive component temperatures. should be used to remove and replace the IC. When working with boards using the familiar r

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SPECIFICATION NOTE : Specifications and others are subject to change without notice for improvement. 1. Application range 3. Test method This specification is applied to the LCD TV used LD23E 1) Performance: LGE TV test method followed chassis. 2) Demanded other specification - Safety : CE, IEC specification - EMC : CE, IEC 2. Requirement for Test - Wireless : Wireless HD Specification (Option) Each part is tested as below without special appointment. 1) Temperature: 25 °C ± 5 °C(77 °F ± 9 °F

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No. Item Specification Remarks Scart jack is Full scart and support 4 Scart Input (1EA) PAL, SECAM ATV/DTV-Out (not support MNT-Out) SVC, Control, Power outlet 5 RS-232C (Selectable 12V/1A or 5V/2A) 6 RGB Input (1EA) RGB-PC Analog (D-SUB 15PIN) HDMI1-DTV HDMI1 : ARC Support(HDMI Version 1.4) 7 HDMI Input (3EA) HDMI2-DTV Support HDCP HDMI3-DTV 8 Audio Input (1EA) RGB/DVI Audio L/R Input 9 SPDIF out (1EA) SPDIF out EMF, DivX HD, 10 USB (2EA) JPEG, MP3, DivX HD For SVC (download) 11 Ethernet Conne

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6. HDMI Input 6.1. DTV mode No. Resolution H-freq.(kHz) V-freq.(Hz) Pixel clock(MHz) Proposed Proposed 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 / 27 231.97 / 24 74.17/74.25 HDTV 1080P FHD model 8. 1920*1080 33.716 / 33.75 29.976 / 30

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ADJUSTMENT INSTRUCTION 3.1.3. Adjustment method 1. Application Range (1) Adjustment method This spec. sheet applies to LD2FF Chassis applied LCD TV - Don’t need to adjust ADC because there is data in OTP all models manufactured in TV factory. and adjusted initially. 3.2. MAC address D/L, CI+ D/L 2. Designation 3.2.1. Equipment & Condition (1) Because this is not a hot chassis, it is not necessary to 1) Play file: keydownload.exe use an isolation transformer. However, the use of isolation t

Краткое содержание страницы № 10

3.3. LAN Inspection 3.5. Model name & Serial number Download 3.3.1. Equipment & Condition 3.5.1. Model name & Serial number D/L ▪ Press "Power on" key of service remote control. ▪ Each other connection to LAN Port of IP Hub and Jig (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. 3.5.2. Method & notice (1) Serial number D/L is using of scan equipment. (2) Setting of scan equipment operated

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3.6.1. Check the method of CI+ Key value 4. Manual Adjustment (1) Check the method on Instart menu * ADC adjustment is not needed because of OTP(Auto ADC (2) Check the method of RS232C Command adjustment) 1) Into the main ass’y mode(RS232: aa 00 00) CMD 1 CMD 2 Data 0 4.1. E DID(The Extended Display Identification A A 0 0 Data)/DDC(Display Data Channel) download 4.1.1. Overview 2) Check the key download for transmitted command It is a VESA regulation. A PC or a MNT will display an optimal

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▪ Reference 4.2.3. Equipment connection MAP - HDMI1 ~ HDMI3 / RGB Color Analyze r - I n the data of EDID, bellows may be different by S/W or Input mode. RS-232C Probe Compute r ⓐ Product ID RS-232C RS-232C HEX EDID Table DDC Function Pattern Generat or Signal Source 0001 01 00 Analog * If TV internal pattern is used, not needed 0001 01 00 Digital ⓑ Serial No: Controlled on production line. 4.2.4. Adj. Command (Protocol) ⓒ Month, Year: Controlled on production line: ex) Mon

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▪ Adj. Map (2) O/S Module(AUO, CMI, Sharp,IPS…) Command Data Range Default Coordinate Adj. item (lower caseASCII) (Hex.) (Decimal) Mode Temp ∆uv x y CMD1 CMD2 MIN MAX Cool 0.271 ± 0.002 0.276 ± 0.002 13,000 K 0.0000 R Gain j g 00 C0 Medium 0.287 ± 0.002 0.296 ± 0.002 9,300 K 0.0000 G Gain j h 00 C0 B Gain j i 00 C0 Warm 0.315 ± 0.002 0.332 ± 0.002 6,500 K 0.0000 Cool R Cut G Cut ▪ Standard color coordinate and temperature using CA-210 B Cut (CH 14) - by aging time R Gain j a 00 C0 1) Edge L

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(2) Check the sound from the TV Set 4.4. Wi-Fi Test Step 1) Turn on TV Step 2) Select Network Connection option in Network Menu. Instart menu -> Menu -> Network Setup (3) C heck the Sound from the Speaker or using AV & Optic TEST program (It’s connected to MSHG-600) Step 3) Select Start Connection button in Network Connection. * Remark: Inspect in Power Only Mode and check SW version in a master equipment 5. Check Commercial features Mode info. Commercial Feature DC Ext RJP Step 4) If the

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5.2. IR Out and DC Power Outlet (12V) 6. AUDIO output check (1) Equipment & Condition 6.1. Audio input condition ▪ Jig (commercial check JIG) 1) RF input: Mono, 1 KHz sine wave signal, 100 % Modulation ▪ Special 232C Cable for commercial check Jig 2) CVBS, Component: 1 KHz sine wave signal 0.5 Vrms ▪ Power only mode 3) RGB PC: 1 KHz sine wave signal 0.7 Vrms ▪ PCB mode (instart menu -> menu -> Configuration Setup -> RS232 DC Power Outlet ) 6.2. Specification (2) Check the power out & IR out

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4) Press the In-start Key on the ADJ remote after at least 1 8. USB S/W Download(Service only) min of signal reception. Then, select 7.External ADC. (1) Put the USB Stick to the USB socket. And Press OK or Right Button for going to sub menu. (2) Automatically detecting update file in USB Stick. 5) Press OK in Comp 480i menu - If your downloaded program version in USB Stick is Low, 6) Give a 1080p Mode, Horizontal 100% Color Bar Pattern it didn't work. But your downloaded version is Hi

Краткое содержание страницы № 17

TROUBLESHOOTING GUIDE 1. Power-Up Boot Fail Trouble Shooting guide N N Check P2401 All Check power connector and Replace Power Board. Voltage Level (3.5V, 12V, 24V). RL_ON signal OK? Y N Check Q2407 output Check Q2407 application circuit Voltage(12V). Or replace Q2407. Y N Check LVDS Cable. Replace Cable. Y Check LCD Module Control board 2. No OSD Trouble Shooting guide N N Check P2401 All Check power connector and Replace Power Board. Voltage Level (3.5V, 12V, 24V). RL_ON signal OK? Y N Check

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3. Analog RF Video Trouble Shooting guide Check RF cable & signal. Y N Check TU6500 Pin8. Replace Tuner.. (Video output) Y N N Check tuner 5V power R6513. Check IC2404. Replace IC2404. Y N Check tuner 3.3V power L6502. Replace L6502 Y N Check tuner 1.8V power IC6501 Replace IC6501. 2pin : 1.8V Y N Check MTK LVDS output. Replace IC105. Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only - 18 - Only for training and service purposes

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4. Digital RF Trouble Shooting guide Check RF cable & signal. Y N N Check tuner 5V power R6513. Check tuner 5V power R6513. Replace IC2404. Y N Check IIC Signal Replace TU6500. TU6500 Pin#3,4. Y N Check DIF Signal Replace TU6500. TU6500 Pin#10,11. Y N Check X100 and application Replace X100. circuit. Y Replace IC105. Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only - 19 - Only for training and service purposes

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5. AV Video Trouble Shooting guide Check input signal format. Is it supported? Y Check AC cable for damage For damage or open conductor. Y N Check JK4600 Can you see the normal Replace JK4600. waveform? Y Check the input of MTK(IC105). Measure waveform at C616 because it’s more easy to check. Can you see the normal waveform? Y This board has big problem because Main chip (MTK) have some troubles. After checking thoroughly all path once again, You should decide to replace MTK or not. Copyright ©


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