LG Electronics 42LS679C-ZC manual

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53

Ir a la página of

Buen manual de instrucciones

Las leyes obligan al vendedor a entregarle al comprador, junto con el producto, el manual de instrucciones LG Electronics 42LS679C-ZC. La falta del manual o facilitar información incorrecta al consumidor constituyen una base de reclamación por no estar de acuerdo el producto con el contrato. Según la ley, está permitido adjuntar un manual de otra forma que no sea en papel, lo cual últimamente es bastante común y los fabricantes nos facilitan un manual gráfico, su versión electrónica LG Electronics 42LS679C-ZC o vídeos de instrucciones para usuarios. La condición es que tenga una forma legible y entendible.

¿Qué es un manual de instrucciones?

El nombre proviene de la palabra latina “instructio”, es decir, ordenar. Por lo tanto, en un manual LG Electronics 42LS679C-ZC se puede encontrar la descripción de las etapas de actuación. El propósito de un manual es enseñar, facilitar el encendido o el uso de un dispositivo o la realización de acciones concretas. Un manual de instrucciones también es una fuente de información acerca de un objeto o un servicio, es una pista.

Desafortunadamente pocos usuarios destinan su tiempo a leer manuales LG Electronics 42LS679C-ZC, sin embargo, un buen manual nos permite, no solo conocer una cantidad de funcionalidades adicionales del dispositivo comprado, sino también evitar la mayoría de fallos.

Entonces, ¿qué debe contener el manual de instrucciones perfecto?

Sobre todo, un manual de instrucciones LG Electronics 42LS679C-ZC debe contener:
- información acerca de las especificaciones técnicas del dispositivo LG Electronics 42LS679C-ZC
- nombre de fabricante y año de fabricación del dispositivo LG Electronics 42LS679C-ZC
- condiciones de uso, configuración y mantenimiento del dispositivo LG Electronics 42LS679C-ZC
- marcas de seguridad y certificados que confirmen su concordancia con determinadas normativas

¿Por qué no leemos los manuales de instrucciones?

Normalmente es por la falta de tiempo y seguridad acerca de las funcionalidades determinadas de los dispositivos comprados. Desafortunadamente la conexión y el encendido de LG Electronics 42LS679C-ZC no es suficiente. El manual de instrucciones siempre contiene una serie de indicaciones acerca de determinadas funcionalidades, normas de seguridad, consejos de mantenimiento (incluso qué productos usar), fallos eventuales de LG Electronics 42LS679C-ZC y maneras de solucionar los problemas que puedan ocurrir durante su uso. Al final, en un manual se pueden encontrar los detalles de servicio técnico LG Electronics en caso de que las soluciones propuestas no hayan funcionado. Actualmente gozan de éxito manuales de instrucciones en forma de animaciones interesantes o vídeo manuales que llegan al usuario mucho mejor que en forma de un folleto. Este tipo de manual ayuda a que el usuario vea el vídeo entero sin saltarse las especificaciones y las descripciones técnicas complicadas de LG Electronics 42LS679C-ZC, como se suele hacer teniendo una versión en papel.

¿Por qué vale la pena leer los manuales de instrucciones?

Sobre todo es en ellos donde encontraremos las respuestas acerca de la construcción, las posibilidades del dispositivo LG Electronics 42LS679C-ZC, el uso de determinados accesorios y una serie de informaciones que permiten aprovechar completamente sus funciones y comodidades.

Tras una compra exitosa de un equipo o un dispositivo, vale la pena dedicar un momento para familiarizarse con cada parte del manual LG Electronics 42LS679C-ZC. Actualmente se preparan y traducen con dedicación, para que no solo sean comprensibles para los usuarios, sino que también cumplan su función básica de información y ayuda.

Índice de manuales de instrucciones

  • Página 1

    Printed in Korea P/NO : MFL67360740 (1209-REV00) CHASSIS : LD21B MODEL : 42LS679C 42LS679C-ZC CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. LED LCD TV SER VICE MANUAL North/Latin America http://aic.lgservice.com Europe/Africa http://eic.lgservice.com Asia/Oceania http://biz.lgservice.com Internal Use Only[...]

  • Página 2

    - 2 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes CONTENTS CONTENTS .............................................................................................. 2 SAFETY PRECAUTIONS ........................................................................ 3 SERVICING PRECAUTIO[...]

  • Página 3

    - 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 . It is essential that these special safety parts should [...]

  • Página 4

    - 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. NOTE : If unforeseen circumstances [...]

  • Página 5

    - 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. When holes are the slotted type, the following technique shoul[...]

  • Página 6

    - 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 LD21B chassis. 2. Requirement for T est Each part is te[...]

  • Página 7

    - 7 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes No. Item Specication Remarks 2 Broadcasting system 1) P AL-BG 2) P AL-DK 3) P AL-I/I’ 4) SECAM L/L ’ 5) DVB-T/T2/C/S 3 Receiving system Analog : Upper Heterodyne Digital : COFDM, QAM ► DVB-T - Guard Interval(Bitrate_Mbi[...]

  • Página 8

    - 8 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes 5. V ideo resolutions (2D) 5.1. Component Input (Y , C B /P B , C R /P R ) 5.2. RGB Input (PC) No. Resolution H-freq(kHz) V -freq(Hz) Pixel clock(MHz) Proposed 1 720*576 15.625 50.00 13.5 SDTV ,DVD 576I 2 720*480 15.73 60.00 13.[...]

  • Página 9

    - 9 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes 5.3. HDMI Input(PC/DTV) No. Resolution H-freq(kHz) V -freq.(Hz) Pixel clock(MHz) Proposed Remark PC(DVI) 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*60[...]

  • Página 10

    - 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 LCD TV with LD21B chassis. 2. Designation (1) The adjustment is according to the order which is designated and which must be followed[...]

  • Página 11

    - 1 1 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes 3.1. ADC Process (1) ADC - Enter Service Mode by pushing "ADJ" key , - Enter Internal ADC mode by pushing "►" key at "7. ADC Calibration". <Caution> Us i ng " po w er o n" k e y [...]

  • Página 12

    - 12 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes 3.4. Function Check - Check display and sound ■ Check Input and Signal items. 1) TV 2) A V (SCART / CVBS) 3) COMPONENT (480i) 4) RGB (PC : 1024 x 768 @ 60hz) (* RGB input : LD21B only support) 5) HDMI 6) PC Audio In (* except[...]

  • Página 13

    - 13 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes * Manual W/B process using adjust Remote control. ▪ After enter Service Mode by pushing "ADJ" key , ▪ Enter White Balance by pushing " ► " key at "8. White Balance". * After you finished all [...]

  • Página 14

    - 14 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes 5. HI-POT T est 5.1. HI-POT auto-check preparation - Check the POWER cable and SIGNAL cable insertion condition 5.2. HI-POT auto-check (1) Pallet moves in the station. (POWER CORD / A V CORD is tightly inserted) (2) Connect the[...]

  • Página 15

    - 15 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes 7. MAC Address & CI+ key download 7.1. MAC Address 7.1.1. Equipment & Condition ▪ Play file : Serial.exe ▪ MAC Address edit ▪ Input Start / End MAC address 7.1.2. Download method (1) Communication Prot connection [...]

  • Página 16

    - 16 - 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. If 'C' Screw is used at the 'A' part, Module will get damaged. SCREW ASSEMB[...]

  • Página 17

    - 17 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes BLOCK DIAGRAM Ethernet RGB PC SPDIF Component1 HDMI1/2(DVI) TDSN TDSN - - G301D G301D (LGIT) (LGIT) PC/DVI Audi In TU_CVBS SIF L/R LG2111 A IC101 SERIAL FLASH IC1401 (8M b it) MX25L8005M2I LVDS (FHD/50Hz) USB1 DP/DM SPK L/R X-t[...]

  • Página 18

    - 18 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes A7 A2 A10 900 300 200 400 540 521 530 800 810 910 120 510 310 * Set + Stand * Stand Base + Body L V1 EXPLODED VIEW Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts ar[...]

  • Página 19

    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. PCM_D[0] PCM_A[3] CI_TS_DATA[0] CI_TS_DATA[4] PCM_A[5] PCM[...]

  • Página 20

    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. C265 0.1uF OPT C262 22pF COMP2_Pb+ C4031 0.1uF OPT HPD1 R4[...]

  • Página 21

    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. POWER_LARGE 2011/11/26 4 GP4L_S7LR[...]

  • Página 22

    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. IR/CONTROL 2011/11/16 6 GP4L_S7LR2 LED_R/BUZZ C2410 0.1uF [...]

  • Página 23

    USB DOWN STREAM USB DOWN STREAM USB DOWN STREAM USB DOWN STREAM 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 SCHEM[...]

  • Página 24

    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. 5V_HDMI_2 DDC_SDA_2 DDC_SCL_1 DDC_SDA_4 D0+_HDMI2 DDC_SDA_[...]

  • Página 25

    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. RGB-PC/SPDIF 2011/09/27 9 GP4L_S7LR2 R1102 470[...]

  • Página 26

    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. RS232C_PHONE 2011/08/13 10 GP4L_S7LR2 IR_OUT C1005 0.1uF C[...]

  • Página 27

    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. LVDS_LARGE 2011/11/14 11 GP4L_S7LR2 RXA4+ C701 10uF 16V OP[...]

  • Página 28

    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. DDR_256 2011/06/03 12 GP4L_S7LR2 A-MDMU B-MDQL2 B-MDQU2 B-[...]

  • Página 29

    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. SFLASH_1MB 2011/06/03 13 GP4L_S7LR2 SPI_SCK +3.5V_ST +3.5V[...]

  • Página 30

    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. 2011/10/04 HEADPHONE 15 GP4L_S7LR2 R1500 3.3K HEAD_PHONE_P[...]

  • Página 31

    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. PCMCI 11/08/13 19 GP4L_S7LR2 CI_DATA[6] CI_ADDR[11] CI_ADD[...]

  • Página 32

    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. ETHERNET 2011/06/14 21 GP4L_S7LR2 JK2100 XRJV-01V-0-D12-08[...]

  • Página 33

    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. 2011/12/23 TUNER_EU 26 GP4L_S7LR2 FE_TS_DATA[1] FE[...]

  • Página 34

    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. 2011/11/02 DVB_S 27 GP4L_S7LR2 R2704 4.7K LNB A_GN[...]

  • Página 35

    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. REAR_JACK_EU 2012/01/06 28 GP4L_S7LR2 R2801 0 EU_OPT R2821[...]

  • Página 36

    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. 2011/11/16 AMP_STA380BWE 34 GP4L_S7LR2 SPK_R- +3.3[...]

  • Página 37

    [...]

  • Página 38

    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 Tuning fail, Picture broken/ Freezing 3, 4 4 Color error 5 5 Vertical/Horizontal bar, residual image, light spot, external device color error 6 6 B. Power error No p[...]

  • Página 39

    Contents of LCD TV Standard Repair Process Detail Technical Manual No. Error symptom Content Page Remark s 1 A. Video error_ No video/Normal audio Check LCD back light with naked eye A1 2 LED driver B+ 24V me asuring method A2 3 Check White Balance value A3 4 Power Board voltage measuring method A4 6 A. Video error_ No video/Video lag/stop TUNER in[...]

  • Página 40

    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 Repair Power Board or parts Check Power Board 24v output Normal voltage Y Replace Inverter or module N Repair Power Board or parts End Always check & record [...]

  • Página 41

    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 2/14 LCD TV Error symptom 2012 . 01 .14 Copyright © 2012 LG Electronics. Inc. All [...]

  • Página 42

    A. Video error Picture bro k en/ Freezing Y N ☞ A5 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 S/W Upgrade Check w hether other e quipments have probl e m or not. (By connecting RF Cabl e at other equipment) → DVD Play er ,S et-Top-Box, Different maker TV etc` SVC Bu[...]

  • Página 43

    A. Video error Tuning fail, Pictur e broken/ Freezing Y N ☞ A5 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. (By connecting RF Cable at other equipment) → Set-Top-Box, Differen[...]

  • Página 44

    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 - HDMI/DVI Y External device /Cable normal External Input/ Component error Check external device and cable Y External device /Cable normal RGB/ HDMI/DVI e[...]

  • Página 45

    Screen normal? N Y Check external device connection condition Y N Check and replace Link Cable Normal? Y Screen normal? 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. Video error Vertica l / Horizontal bar, resi[...]

  • Página 46

    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 Replace Power B/D Measure voltage of each o u tpu t of Power B/D N Y Normal voltage? Replace Main B/D N Y OK? Replace Main B/D N Y Normal? Check ST-BY[...]

  • Página 47

    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 Check outlet Replace Main B/D CPU Abnormal (If Power Off mode is not display ed) Check Power B/D vol t ag e Y N Replace Main B/D Normal voltage? Repla[...]

  • Página 48

    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. Audio error No audio/ Normal v id eo ☞ A15 ☞ A16 Disconnection Establis hed date Revis e d date 9/14 LCD[...]

  • Página 49

    → 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 for all audio Check and replace speaker and connector Wrecked audio/ Discontinuation/ Noise only for D-TV Wrecked audio/ Discontinuation/ Noise only fo[...]

  • Página 50

    D. Function error 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 R/C Operat ing When turn off light in room Check & Replace Baterry [...]

  • Página 51

    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. Function error Ex[...]

  • Página 52

    Check location of noise Identify nose type Circuit noise Replace PSU (with LED drive r) Replac e L E D driv er Mechanic al noise Check location of noise OR ※ When the nose is severe, rep lace the module (For mode ls with fix infor mation, upgrade the S/W or provide th e d es cript ion) ※ If there is a “Tak Tak ” noise from the cabinet, refe[...]

  • Página 53

    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 Establis hed date Revis e d date 14/14 LCD TV Error symptom Standard Repair Process 2012. 01 .14 Copyright © 2012 LG Electronics. Inc. All right[...]