Benutzeranleitung / Produktwartung 42LM625S-ZG des Produzenten LG Electronics
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Printed in Korea P/NO : MFL67360910 (1203-REV00) CHASSIS : LD22E MODEL : 42LM620S/620T/625S MODEL : 42LM620S/620T -ZE 42LM625S-ZG CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. LED LCD TV SER VICE MANUAL North/Latin America http://aic.
- 2 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes CONTENTS CONTENTS .............................................................................................. 2 SAFETY PRECAUTIONS .
- 3 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes 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 .
- 4 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes SER VICING 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.
- 5 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes IC Remove/Replacement Some chassis circuit boards have slotted holes (oblong) through which the IC leads are inserted and then bent at against the cir- cuit foil.
- 6 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes SPECIFICA TION NOTE : Specifications and others are subject to change without notice for improvement . 1. Application range This specification is applied to the LCD TV used LD22E chassis.
- 7 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes No. Item Specication Remarks 2 Broadcasting system 1) P AL-BG 2) P AL-DK 3).
- 8 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes 5. Component V ideo Input (Y , C b /P b , C r /P r ) 6. RGB input (PC) No. Resolution H-freq(kHz) V -freq(Hz) Porposed 1 720×480 15.
- 9 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes 7. HDMI Input 7.1. DTV mode No. Resolution H-freq(kHz) V -freq.(kHz) Proposed 1. 640*480 31.469 / 31.5 59.94/60 SDTV 480P 2. 720*480 31.
- 10 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes ADJUSTMENT INSTRUCTION 1. Application Range This specification sheet is applied to all of the LED LCD TV with LD22E chassis.
- 1 1 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes 3.2. MAC address D/L, CI+ key D/L, Widevine key D/L, ESN D/L Connect: USB po.
- 12 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes 3.5. Model name & Serial number Download 3.5.1. Model name & Serial number D/L ▪ Press "Power on" key of service remote control.
- 13 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes 4. Manual Adjustment * ADC adjustment is not needed because of OTP(Auto ADC adjustment) 4 .1 EDID(The Extended Display Identification Data)/DDC(Display Data Channel) download 4.
- 14 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes 4.2. White Balance Adjustment 4.
- 15 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes ▪ Adjustment condition and cautionary items 1) Lighting condition in surrounding area Surrounding lighting should be lower 10 lux.
- 16 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes 4.6. 3D function test (Pattern Generator MSHG-600, MSPG-6100[Support HDMI1.4]) * HDMI mode NO. 872 , pattern No.83 (1) Please input 3D test pattern like below .
- 17 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes 4.12. GND and Internal Pressure check 4.12.1. Method (1) GND & Internal Pressure auto-check preparation - Check that Power cord is fully inserted to the SET .
- 18 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes ■ Screw specification and application situation <W arning> Check Screw T ype When Screw is assembled at 'A' Part.
- 19 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes L/R In SPDIF OUT USB Audio AMP ( STA) I2S Out MTK jpG jpG.
- 20 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes A7 A2 A21 A5 A10 A G1 900 300 200 400 540 521 530 800 810 910 120 510 310 * S.
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
THERMAL THERMAL THERMAL THERMAL THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
Fiber Optic THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
USB DOWN STREAM USB DOWN STREAM USB DOWN STREAM THERMAL THERMAL THERMAL THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
THERMAL THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
THERMAL THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
THERMAL THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
THERMAL THERMAL THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
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2012 LED/LCD TV Engineering guide < Applicable Model > XXLM760S-ZB Copyright © 2012 LG Electronics. Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only.
◈ CONTENT ◈ New features Main PCBs Block Diagrams, IIC Map Structure of TV set and connection of sub ass’ys New sub ass’ys - Instruction of new sub ass’ys - How to use tool - Download Adjust way of new features (widevine…) Repair guide The latest issue and concerning issue Copyright © 2012 LG Electronics.
EPI Interface EPI(Embedded Point-Point Interface) Features • Point-Point topolo gy (support 2 Pair option ) • CDR (Clock Data Recovery) • Bandwidth up to 1.
EPI Interface (mini-LVDS vs. EPI) Comparison HF mini-LVDS What to change EPI (Embedded cloc k P-to-P Interface) - Difficult to upgrade bandwidth limit - Multiple number of wires needed for higher bandwidth HF mini- LVDS FHD (10bit) 60Hz 120Hz 240Hz No.
HF mini-LVDS EPI Topology Protocol Features @10bit, FHD120 • Multi Drop • Data rate: 660Mbps • External clock • Point to Point • Data rate : 1.
Main PCB for Broadband Main + TCON all in one To PSU 1 2 6 4 1 Main processor, DDR Memory eMMC Memory 2 3 4 Micom for Key/IR sensing PMIC Audio AMP (10W+10W) xxLM760S-ZB Soft touch +IR Front Spk To mo.
MTK5369 Block Diagram( LM76 ) L/R In SPDIF OUT USB Audio AM P (NTP7500 or STA) I2S Ou t MTK CI slot CI slot P_TS CVBS P_TS T/C Demod IF(+/-) USB1 RS-232 C PC-RGB PC-AUDIO OPTIC LA N SYSTEM DDR3 X 1600.
Jack Interface [PR0P ],[PB0P],[ Y0P] [OPCTRL8] [VDACX_OUT] [VDACY_OUT] [AUOUTL0] [ADIN0_SRV] [CVBS2P] [AIN0_L_ADDC] [AIN0_R_AADC] [SPDIF_OUT] [AUOUTR0] Main SoC MTK [SOY0] [Y1P],[ PB1P],[P R1P] [OPCTR.
GP4 Backend block diagram (EPI & T-con) IC7700 TPS65178 IC7701 TPS65198 50Pin EPI LEFT 50Pin EPI RIGHT VCOM, G IP _ RST R(0 옴 ) OPT DISCHG VGL_I VGL_I VGH_ODD, VGH_EVEN VGH_R, VGH_F, VST R (0 .
GP4 Backend block diagram (EPI & T-Con) Main SoC MTK IC7700 TPS65178 50Pin EPI LEFT 50Pin EPI RIGHT GMA[1][3][9][10][12 ][14][15][16][18] GMA[4][5][7][12][15] EPI_LOCK3 TXA1N/P, T XACLKN/P, TXA4 N.
GP4 Backend block diagram (LVDS Tx & Local Dimming) LVDS Tx Block Main SoC MTK LVDS_SEL BIT_SEL_LOW 51Pin LVDS Output PANEL_VC C (+12V) 41Pin LVDS Output 10-bit (R) Dual-link LVDS Output 24 10-bit.
Interconnection - 1 1 Main PCB 2 Power Board 3 Tact key PCB T-con Driver 1 2 3 4 5 Main / LPB 24Pin cable Main / Module EPI cable 50& 50PIN LED driver / PSU 10Pin (IR+Touch) Cable SPK Cable Local .
2012Y IR + Soft touch PCB Pinmap Circuit Block Diagram Pin Configuration KEY1, KEY2 Voltage (Tolerance of voltage ± 0.2V) Ass’y Picture Copyright © 2012 LG Electronics.
2012Y IR + Soft Touch LED Lighting Scenario 구분 Spec 내용 비고 Power Indicator UI - 12Y GP4 High(L9), GP4 Mid(MTK), GP4 Low(S7LR2) Æ “ Po wer Light” UI Delete compared with 11Y(GP3 model) - 11Y Carry Over Model : 12Y same Power LED scenario process Æ “ Po wer Light “ UI Delete, The way of 11Y Soft Touch Ass’y is us ed.
Introductions of GP4 Sensor (Touch IC) Touch Key Threshold Level (Ta = 25ºC ) 1. Verify the number of THR at first. 2. Once you correctly touch Touch b u tt on for more than 1 sec, yo u can see a Touch data w hile yo u keep touchi ng the button. 3. Keep in mind that you can onl y read the Touch data during touch status.
Introductions of GP4 Sensor (Touch IC) Touch EEPROM Register change with USB port 1. Write all of the address, value ( Hex ) as a below . capable of only Touch.txt file based on the left picture 2. Make the file [ Filename : ‘Touch.txt’ ] and move it to USB (T he outermost area, Don’t move it to any folder) 3.
Introductions of 12Y RF ass’y + Magic Remote control Copyright © 2012 LG Electronics. Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only.
1. System Remote RF Receiver TV UART or USB RF Pairing Information Transmission (Send to TV after Paired) • Static Calibration Da ta (Bypass only) • Remote FW ver.
2. Remote Buttons (M3 vs. M4) BUTTON RF Unpaired IR_CODE RF Paired RF_CODE IR continuous repeat ETC. Phsica l Buttons POWER 0x08 0x 08 Y IR only BACK 0x28 0x8028 Y HOME 0x7C 0x807C Y ← 0x07 0x8007 Y.
MPU-3050 (Gyro) (Invensense) LIS331DLH(Accel.) (STMicro) BCM20733M (BROAD COM) Bluetooth 3.0 Key Button ( 4 x 5 ) AA x 2 Battery DC-DC 2.8V LDO Power Management Bluetooth Remocon Blueto o th Receiver BCM20702M (BROAD COM) Bluetooth 4.0 Antenna Connector X-tal 20 MHz Antenna X-tal 24 MHz 3.
주요 Item IC Manufacturer Function Remocon Voice Voice Codec WM8950 Wolfs on 16KHz Sampling of Audio data MEMS Mic. SPU0414HR5H Know les Sensing Voice Motion Sensor Gyro Sensor ITG3050 Invensense Se.
5. RF Pairing / Un-pairing Method Method Description RF Pairing Method1 – If unpaired, just press "OK" button. – If paired, press "OK" button after unpairing. Method 2 (Repairing) – Press “BACK" button for 5 sec.
Introductions of 12Y WIFI built in ass’y Copyright © 2012 LG Electronics. Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only.
WIFI Built in ass’y feature(LGIT) WIFI built in feature PIN USB in terf ace 1 5V 2 DM 3 DP 4 GND -P i n m a p - Block diagram Copyright © 2012 LG Electronics.
WIFI Built in Block-diagram(Arcadyan) Copyright © 2012 LG Electronics. Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only.
WIFI Built in ass’y Specification Copyright © 2012 LG Electronics. Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only.
12Y Widevine & HDCP 2.0 & NETFLX 1. Widevine? 2. HDCP 2.0 & NETFLIX? 3. DTCP? 4. Changed BOM Copyright © 2012 LG Electronics. Inc. All rights reserved.
1. Widevine? [Widevine] Widevine is the Solution(Library) o ffering Adaptive Streaming and DRM. In BBTV, when special CP do servi ce, this module is required key. Currently CP which is requested to widevine , is typically Austra lian Bigpond Live and North American CinemaNow.
HDCP 9 High-bandwidth Digital Content Protection 9 Protect high-value digital motion pictures, television programs and au dio against unauthorized interception and co pying between a digital set top box or digital video recorder and a digital TV or PC.
3. DTCP? [DTCP] The Digital Transmission Content Protecti on Specification defines a cryptogrphic protocol for protecting audio/video entertai nment content from unauthorized copying, intercepting, and tampering as it traverses digital transmission mechanisms such as a high-performance serial bus that conforms to the IEEE 1394-1995 standard.
4. Changed BOM As-Was Current Æ 추가 Add Item 1.Marlin (Yes/No) 2 .CNTV (Yes/No) 3.HDCP Tx (Yes/No) 4.DTCP Rx (Yes/No) 5.HDCP Rx (Yes/No) 주 3 ) CNTV [Yes] : China Smart TV O nl y Copyright © 2012 LG Electronics.
4. Changed BOM Copyright © 2012 LG Electronics. Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only.
Contents of LCD TV Standard Repair Process No. Error symptom (High category) Error symptom (Mid cate gory) Page Remarks 1 A. Video error No video/Normal audio 1 2 No video/No audio 2 3 Video error, video lag/stop , fail tunning 3, 4 4 Color error 5 5 Vertical/Horizontal bar, residual image, light spot, external device color error 6 6 B.
Contents of LCD TV Standard Repair Process Detail Technical Manual No. Error symptom Content Page Remarks 1 A. Video error_ No video/Normal audio Check LCD back light with naked eye A1 2 LED driver B+ 24V measuring method A2 3 Check White Balance value A3 4 Power Board voltage measuring method A4 6 A.
Normal audio Y N Move to No video/No audio No video Normal audio Check Back Light On with naked ey e On Y N Check Power Board 12v,3.5v etc. Normal voltage Y N Replace T-con Board or module And Adjust .
Normal voltage? Check various voltages of Power Board ( 3.5V,12V,20V or 24V…) No Video/ No audio Check and replace MAIN B/D Y Replace Power Board and repair parts N End Standard Repair Process A. Video error No video/ No audio ☞ A4 Establis hed date Revised date 2/13 LCD TV Error symptom 2010.
A. Picture Problem Picture bro k en/ Freezing Y N ☞ A6 N Check R F Signal le vel Normal Signal? Check RF Cable Connection 1. Reconnec tion 2. Install Bo oste r Check S/W Version Booster menu On → Off: Che c k Off → On: Check S/W Upgrade Check w hether other e quipments have probl e m or not.
A. Picture Problem (DVB-S/S2) Tuning fail, Pictur e broken/ Freezing Y N ☞ A6 Check R F Signal le vel Normal Signal? Check S/W Version S/W Upgrade SVC Bulletin? Normal Picture? Y N Y Close Check RF signal cable (DVB satellite signal or not) Check whether other eq uipments have problem or not.
Color error? Y N ※ Check and replace Link Cable (LVDS) and contact condition Y N Replace Main B/D Color error? Check error color input mode Check color by input -External Input -COMPONENT - RGB - HD.
Screen normal? N Y Check external device connection condition Y N Check and replace Link Cable Normal? Y N Screen normal? Replace Main B/D (adjust VCOM) Replace module Check color condi tion by input -External Input -Component - RGB - HDMI/DVI End Vertical/Horizontal bar, r esidual image, light spot Request repair for external device A.
B. Power error No power Power LED On? Y N DC Power on by pressing Power Key On Remote control Y N Normal operation? Check Power On ‘”High” Check Power cord was inserted properly Check Power LED .
B. Power error Off when on, off w hile vi ewing, power auto on/off Error? N Y Check Power Off Mode Fix A/C cord & Outlet and check each 3 phase out Check A/C cord Check for all 3- phase power out .
No audio Screen normal Check user menu > Speaker off Off N Y Cancel OFF Check audio B+ 24V of Power Board Normal vol t ag e Y N Replace Power Board and repair parts Check Speaker disconnection N Y Replace Speaker Replace MAIN Board End C.
→ abnormal audio/di sconti nuation/n oise is same af ter “Check input signal” compared to No audio C. Audio error Wrecked audi o/ disco ntinu ation /noise Wrecked audio/ Discontinuation/ Noise f.
D. General Function Problem Remote co ntrol & Local sw itch checking Y N 1. Remote control(R/C) op erating error Check R/C itself Operation Norm al operating? Normal operating? Y Close Replace R/ C If R/C operate, Explain th e customer cause is inter ference from light in room.
Check technical informatio n - Fix information - S/W Version N Y Technical information? Check input signal Signal input? Y N External Input and Component Recognition error Check and fix externa l devic e/cable RGB,HDMI/ DVI, Optical Recognition error Replace Main B/D Replace Main B/D Fix in accordance with technical information D.
Check location of noise Identify nose type Circuit noise Replace PSU(wi th LED driver) Replace LED dr iver Mechanic al noise Check location of noise OR ※ When the nose is severe, rep lace the module.
Replace module Zoom par t with exter ior damage Module damage Cabinet damage Replace cabinet Replace remot e controller Remote controller damage Stand dent Replace stand F. Exterior defect Exterior defect Adjust VCOM Establis hed date Revised date 13/13 LCD TV Error symptom Standard Repair Process ☞ A28 2010.
Contents of LCD TV Standard Repair Process Detail Technical Manual No. Error symptom Content Page Remark s 21 B. Power error_No power Check front di splay LED A17 22 Check power input Voltage & ST-BY 5V A18 23 Checking method when power is ON A19 24 POWER BOAR D voltage measuring method A4 25 26 B.
Entry met hod 1. Press the ADJ button on the re mote controller fo r adjustment. 2. Enter into White Balance of item 6. 3. After recordin g the R, G, B (GAIN, Cut) value of Color Temp (C ool/Medium/Warm), re- enter the value after r eplacing the MAIN BOARD.
Standard Repair Process Detail Technical Manual Power Boar d v oltage measuring m ethod A. Video error_No video/ Audio A5 Established date Revised date Error symptom Content LCD TV Check the DC 24V, 12V, 3.5V. 24 Pin (Power Boar d ↔ Main B oard ) SMAW200-H24S (YEONHO) 1 Power on 2 24V 3 24V 4 24V 5 GND 6 GND 7 GND 8 GND 9 3.
MENU - Æ Set up Æ supp or t - Æ signal test - Æ select channel When the signal is strong, use the attenuator (-10dB, -15 dB, -20dB etc.) Standard Repair Process Detail Technical Manual TUNER input s ignal strengt h checking me thod A.
Standard Repair Process Detail Technical Manual LCD- TV Version c hecking metho d A. Video error_Video error, video lag/stop 1. Checking method for remote controller for adjustment Press the IN-START with the remote controller for adjustment Version <ALL MODELS> A7 Established date Revised date Error symptom Content LCD TV 2010.
Standard Repair Process Detail Technical Manual LCD TV connection di agram (1) A. Video error _Vertical/Horizontal bar, residual image, light spot As the part connecting to the external in p ut, check the screen condition b y signal A8 Established date Revised date Error symptom Content LCD TV <ALL MODELS> 2010.
Checking method: 1. Check the signal st rength or check whether the scr een is normal when the external device is connected. 2. After mea suring each voltage from power supply, finally replace the MAI N BOARD. Standard Repair Process Detail Technical Manual TUNER chec king part A.
Standard Repair Process Detail Technical Manual Adjustment Test p atte rn - ADJ Key A. Video error_Color error You can view 6 types of patterns using the ADJ Key Checking item : 1. Defective pixel 2. Resi dual image 3. MODUL E error (ADD-BAR,SCAN BAR.
Solder defe ct, CNT Broken T-Con Defect, CNT Broken T-Con Defect, CNT Broken T-Con Defect, CNT Broken Solder defe ct, CNT Broken Solder defe ct, CNT Broken Solder defe ct, CNT Broken Solder defe ct, C.
Abnormal Power Section Solder defe ct, Short/Crack Abnormal Power Section Solder defe ct, Short/Crack Fuse Open, Abnormal power section Noise GRADATION GRADAT ION Abnormal Display Appendix : Exchange T-Con Board (2) Copyright © 2012 LG Electronics. Inc.
Appendix : Exchange PSU(LED driver) No Light Dim Light Dim Light Dim Light No picture/Sound Ok Copyright © 2012 LG Electronics. Inc. All rights reserved.
Appendix : Exchange the Module (1) Panel Mura, Li ght leakage Press damage Crosstalk Crosstalk Press damage Panel Mura, Li ght leakage Press damage Un-repairable Cases In this case please exchange the module. Copyright © 2012 LG Electronics. Inc. All rights reserved.
Vertical Block Source TAB IC Defect Horizontal Block Gate TAB IC Defect Gate TAB IC Defect Gate TAB IC Defect Vertical Line Source TAB IC Defect Vertical Block Source TAB IC Defect Horizontal Block Ga.
Standard Repair Process Detail Technical Manual Check front displ ay LED B. Power error _No power A17 Established date Revised date Error symptom Content LCD TV ST-BY condition: Red Power ON condition: w hite Front LED control : Menu Æ Option Æ Power Indicator Æ Standby light ON 2010.
Standard Repair Process Detail Technical Manual Check power input voltage and ST-BY 5V B. Power error _No power A18 Established date Revised date Error symptom Content LCD TV For ’10 models, there is no voltage ou t for st-by purpose. When st-by, only 3.
Standard Repair Process Detail Technical Manual Checking method when po wer is ON B. Power error _No power A19 Established date Revised date Error symptom Content LCD TV Check “power on” pin is high 2010. 12 .14 24 Pin (Power Boar d ↔ Main B oard ) SMAW200-H24S (YEONHO) 1 Power on 2 24V 3 24V 4 24V 5 GND 6 GND 7 GND 8 GND 9 3.
Entry method 1. Press the IN-START button of the remote controller for adjustment 2. Check the entry into adjustment item 3 Standard Repair Process Detail Technical Manual POWER OFF MODE checking m ethod B. Power error _Off when on, off whil ing viewing <ALL MODELS> A22 Established date Revised date Error symptom Content LCD TV 2010.
Checking metho d 1. Press the MENU button on the remote controller 2. Select the AUDIO function of th e Menu 3. Select TV Speaker from Off to On Standard Repair Process Detail Technical Manual Checking method in menu w hen there is no audio C.
Checking order when t here is n o audi o ① Check the contact condition of or 24V connector of Main Board ② Measure the 24V input voltage suppli ed from Power Board (If there is no input voltage, r.
Checking order 1, 2. Check IR c able c ondition between IR & M ain board. 3. Check the st-by 3.3V on the terminal 6. 4. When checking the Pre-Am p when the power is in ON condition, it is normal when the Anal og Tester needle moves s l owly , and defective when it does not move at all.
Standard Repair Process Detail Technical Manual Sequence of the Vcom adjustment D. VCOM Adjustment 1. Case ■ LCD module change ■ T-Con board change 2.
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