LG Electronics 42LM3450 manual
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Buen manual de instrucciones
Las leyes obligan al vendedor a entregarle al comprador, junto con el producto, el manual de instrucciones LG Electronics 42LM3450. 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 42LM3450 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 42LM3450 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 42LM3450, 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 42LM3450 debe contener:
- información acerca de las especificaciones técnicas del dispositivo LG Electronics 42LM3450
- nombre de fabricante y año de fabricación del dispositivo LG Electronics 42LM3450
- condiciones de uso, configuración y mantenimiento del dispositivo LG Electronics 42LM3450
- 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 42LM3450 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 42LM3450 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 42LM3450, 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 42LM3450, 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 42LM3450. 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
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Página 1
Printed in Korea P/NO : MFL67360737 (1209-REV00) CHASSIS : LD21B MODEL : 42LM3450/345S/345T MODEL : 42LM3450/345S/345T -ZA 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.[...]
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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[...]
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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 [...]
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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 [...]
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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[...]
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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[...]
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Página 7
- 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) 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[...]
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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) - HD Model 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 15.7[...]
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Página 9
- 9 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes 5.4. 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[...]
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Página 10
- 10 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes 6. V ideo resolutions (3D) 6.1. HDMI Input No. Resolution H-freq(kHz) V -freq(Hz) Pixel clock(MHz) Proposed 3D input proposed mode 1. 1920*1080 53.95 / 54 23.98 / 24 148.35/148.5 HDTV 1080P Frame packing 2. 1280*720 89.9 / 90 5[...]
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Página 11
- 1 1 - 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 followe[...]
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Página 12
- 12 - 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 o[...]
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Página 13
- 13 - 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 LD21[...]
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Página 14
- 14 - 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 [...]
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Página 15
- 15 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes 4.5. Outgoing condition Configuration ■ When pressing IN-STOP key by SVC remocon, Red LED are blinked alternatively . And then automatically turn off. (Must not AC power OFF during blinking) 5. HI-POT T est 5.1. HI-POT auto-c[...]
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Página 16
- 16 - 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 Con[...]
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Página 17
- 17 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes Ethernet RGB PC SPDIF Component1 HDMI1/2(DVI) PC/DVI Audi I IF +/ - TU_CVBS SIF L/R LG2111 A IC101 SERIAL FLASH IC1401 (8M b it) MX25L8005M2I LVDS (FHD/50Hz) Audio AMP STA380BWE USB1 DP/DM SPK L/R X-tal 24M FPC(51P) I2S SPDIF C[...]
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Página 18
- 18 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes 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-tal 24M FPC(51P[...]
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Página 19
- 19 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes Ethernet RGB P SPDIF Component1 HDMI1/2(DVI) TDSQ TDSQ - - G001D G001D (LGIT) (LGIT) PC/DVI Au TU_CVBS SIF L/R SERIAL FLASH IC1401 (8M b it) MX25L8005M2I LVDS (FHD/50Hz) USB1 DP/DM SPK L/R X-tal 24M FPC(51P) I2S SPDIF CVBS, Y/P[...]
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Página 20
- 20 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes A2 A10 A9 900 300 200 400 540 521 530 510 910 120 123 501 122 500 L V1 * Set + Stand * Stand Base + Body A G1 EXPLODED VIEW Many electrical and mechanical parts in this chassis have special safety-related characteristics. These[...]
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Página 21
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[...]
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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. C265 0.1uF OPT C262 22pF COMP2_Pb+ C4031 0.1uF OPT HPD1 R4[...]
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Página 23
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[...]
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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. IR/CONTROL 2011/11/16 6 GP4L_S7LR2 LED_R/BUZZ C2410 0.1uF [...]
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Página 25
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[...]
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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. 5V_HDMI_2 DDC_SDA_2 DDC_SCL_1 DDC_SDA_4 D0+_HDMI2 DDC_SDA_[...]
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Página 27
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[...]
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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. RS232C_PHONE 2011/08/13 10 GP4L_S7LR2 IR_OUT C1005 0.1uF C[...]
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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. LVDS_LARGE 2011/11/14 11 GP4L_S7LR2 RXA4+ C701 10uF 16V OP[...]
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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. DDR_256 2011/06/03 12 GP4L_S7LR2 A-MDMU B-MDQL2 B-MDQU2 B-[...]
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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. SFLASH_1MB 2011/06/03 13 GP4L_S7LR2 SPI_SCK +3.5V_ST +3.5V[...]
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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. 2011/10/04 HEADPHONE 15 GP4L_S7LR2 R1500 3.3K HEAD_PHONE_P[...]
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Página 33
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[...]
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Página 34
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[...]
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Página 35
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[...]
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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. 2011/11/02 DVB_S 27 GP4L_S7LR2 R2704 4.7K LNB A_GN[...]
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Página 37
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[...]
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Página 38
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[...]
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Página 39
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Página 40
Contents of LCD TV Standard Repair Process No. Error symptom (High category) Error symptom (Mid category) 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 po[...]
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Página 41
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[...]
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Página 42
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 [...]
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Página 43
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 [...]
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Página 44
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[...]
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Página 45
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[...]
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Página 46
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[...]
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Página 47
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[...]
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Página 48
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[...]
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Página 49
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[...]
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Página 50
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[...]
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Página 51
→ 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[...]
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Página 52
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 [...]
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Página 53
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[...]
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Página 54
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[...]
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Página 55
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[...]