LG 70LB6560 Service Manual

Hide thumbs

page of 86

/ 86
Bookmarks

Quick Links

Download this manual

LED TV

SERVICE MANUAL

CHASSIS : LB42B

MODEL : 70LB6560/656T/659Y

CAUTION

BEFORE SERVICING THE CHASSIS,

READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

P/NO : MFL67985128 (1403-REV00)

North/Latin America

Europe/Africa

Asia/Oceania

70LB6560/656T/659Y-TA

Internal Use Only

http://aic.lgservice.com

http://eic.lgservice.com

http://biz.lgservice.com

Printed in Korea

Need help?

Do you have a question about the 70LB6560 and is the answer not in the manual?

Questions and answers

Summary of Contents for LG 70LB6560

Page 1 Internal Use Only North/Latin America http://aic.lgservice.com Europe/Africa http://eic.lgservice.com Asia/Oceania http://biz.lgservice.com LED TV SERVICE MANUAL CHASSIS : LB42B MODEL : 70LB6560/656T/659Y 70LB6560/656T/659Y-TA CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. P/NO : MFL67985128 (1403-REV00) Printed in Korea...
Page 2 SPECIFICATION ..................6 ADJUSTMENT INSTRUCTION .............. 12 BLOCK DIAGRAM ................. 20 EXPLODED VIEW .................. 21 SCHEMATIC CIRCUIT DIAGRAM .............. - 2 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 3 An other abnormality exists that must be corrected before the receiver is returned to the customer. - 3 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 5 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. - 5 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 6 Audio Input (3EA) Component/AV2 L/R Input. SDPIF out (1EA) SPDIF out USB Input For My Media(Movie/Photo/Music List) or For SVC - 6 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 7 HDTV 1080i 1920×1080 33.75 60.00 HDTV 1080i 1920×1080 33.72 59.94 HDTV 1080i 1920×1080 56.250 HDTV 1080p 1920×1080 67.5 HDTV 1080p - 7 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 8 1280 x 1024 @60Hz 63.981 60.020 VESA(SXGA) 1360 x 768 @60Hz 47.712 60.015 VESA(WXGA) 1920 x 1080 @60Hz 67.5 60.00 WUXGA(Reduced Blanking) - 8 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 9 Primary(HDTV 1080P) 56.250 148.5 Side-by-side(half) Secondary(HDTV 1080P) Top-and-Bottom Primary(HDTV 1080P) 67.43 / 67.5 59.94 / 60 148.35/148.50 Side-by-side(half) Secondary(HDTV 1080P) - 9 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 10 3D input proposed mode Under 320x240 2D to 3D Over 320x240 2D to 3D, Side by Side(Half), Top & Bottom - 10 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 11 7.10. 3D Input mode Single Frame Frame Side by Side Top & Bottom Checker board 2D to 3D Sequential Packing iii. - 11 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 12 → ESN → HDCP14 → HDCP20 ▪ Play: Press Enter key ▪ Result: Ready, Test, OK or NG ▪ Printer Out (MAC Address Label) - 12 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 13 4) Check the model name Instart menu. → Factory name displayed. (ex 47LB650V-ZA) 5) Check the Diagnostics.(DTV country only) → Buyer model displayed. (ex 47LB650V-ZA) - 13 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 14 00 00 00 FC 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 ⓑ Serial No: Controlled on production line. ⓒ Month, Year: Controlled on production line: ⓔ Checksum(LG TV): Changeable by total EDID data. ex) Monthly : ‘01’ → ‘01’ ⓔ1 ⓔ2...
Page 15 00 1f → Gain adj. completed *(wb 00 20(Start), wb 00 2f(end)) → Off-set adj. wb 00 ff → End white balance auto-adj. - 15 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 16 Step 4) Confirm the Local Dimming mode 11-20 Step 5) Press “exit” Key 21-30 31-40 41-50 51-80 81-119 Over 120 - 16 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 17 Step 5) Select the AP you want to connect. (3) Don't wear a 3D Glasses, check the picture like below. - 17 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 18 (2) CVBS, Component: 1 KHz sine wave signal 0.5 Vrms (3) RGB PC: 1 KHz sine wave signal 0.7 Vrms - 18 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 19 (2) Select "Tool Option 1" and push "OK" key. (3) Punch in the number. (Each model has their number) - 19 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 21 X-RADIATION, Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer. - 21 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 22 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR M14 Symbol A THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. M14-Peripheral Copyright © 2014 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 23 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR M14 Symbol B THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. M14-Display In/Out Copyright © 2014 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 24 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR M14 Symbol C THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. M14-AV In/Out Copyright © 2014 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 25 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR M14 DDR3-M0 THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2014 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 26 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR M14 DDR3-M1 THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2014 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 27 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR VCC & GND THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. 11/05/31 Copyright © 2014 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 28 2013.03.22 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR POWER THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2014 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 29 2013.03.22 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. MICOM Copyright © 2014 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 30 2013.03.22 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. HDMI Copyright © 2014 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 31 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR AV JACK THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2014 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 32 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. IR / KEY Copyright © 2014 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 33 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR USB 2 & 3 THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2014 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 34 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR USB 1(DVR) THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2014 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 35 FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2014 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 36 2012-09-12 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR ETHERNET THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2014 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 37 FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR AUDIO[ST] THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2014 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 38 FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2014 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 39 TUNER 2012.03.08 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2014 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 40 TUNER 2012.07.10 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2014 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 41 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LVDS INTERFACE Copyright © 2014 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 42 LOCAL DIMMING 2012.09.14 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2014 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 43 2013.04.03 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. T-Con Copyright © 2014 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 44 11.09.29 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2014 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 45 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR IR Blaster/Boost THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2014 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 46 FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2014 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 48 M14 Trouble Shooting Guide...
Page 49 Contents of LCD TV Standard Repair Process Error symptom (High category) Error symptom (Mid category) Page Remarks No video/Normal audio No video/No audio Picture Broken / Freezing A. Video error Color error Vertical/Horizontal bar, residual image, light spot, external device color error No power B.
Page 50 Standard Repair Process Established A. Video error 2014.01.20 Error date LCD TV symptom No video/ Normal audio Revised date 1/13 First of all, Check whether all of cables between board is inserted properly or not. (Main B/D↔ Power B/D, EPI Cable, Speaker Cable, IR B/D Cable,,,) ☞A1 ☞A4 No video...
Page 51 Standard Repair Process Established A. Video error 2014.01.20 Error date LCD TV symptom No video/ No audio Revised date 2/13 ☞A4 Check various voltages Check and Normal of Power Board No Video/ replace voltage? No audio ( 3.5V,12V,20V or 24V…) MAIN B/D Replace Power Board and repair...
Page 52 Standard Repair Process Established A. Picture Problem 2014.01.20 Error date LCD TV symptom Picture broken/ Freezing Revised date 3/13 . By using Digital signal level meter ☞A6 . By using Diagnostics menu on OSD ( Setting→ Set up→ Manual Tuning → Check the Signal ) Check RF Signal level - Signal strength (Normal : over 50%) - Signal Quality (Normal: over 50%)
Page 53 Standard Repair Process Established A. Video error 2014.01.20 Error date LCD TV symptom Color error Revised date 4/13 ☞ A10 ☞A8 ※ Check and Check color by input replace Link -External Input Color Cable Color Color Replace Main B/D Replace module -COMPONENT error? (LVDS) and...
Page 54 Standard Repair Process Established A. Video error 2014.01.20 Error date LCD TV symptom Vertical / Horizontal bar, residual image, Revised date 5/13 light spot, external device color error Vertical/Horizontal bar, residual image, light spot Replace Module ☞A8 ☞ A10 Check color condition by input ☞...
Page 55 Standard Repair Process Established B. Power error 2014.01.20 Error date LCD TV symptom No power Revised date 6/13 ☞A17 ☞A19 DC Power on Replace Check Power LED Normal Check Power by pressing Power Key Power On ‘”High” Power LED operation? On Remote control .
Page 56 Standard Repair Process Established B. Power error 2014.01.20 Error date LCD TV symptom Off when on, off while viewing, power auto on/off Revised date 7/13 ☞A22 Check Power Off Check A/C cord Error? Replace Main B/D Normal? Mode Abnormal Replace Power B/D Abnormal ☞A19 Fix A/C cord...
Page 57 Standard Repair Process Established C. Audio error 2014.01.20 Error date LCD TV symptom Revised date No audio/ Normal video 8/13 ☞A24 ☞A25 Check user Check audio B+ 24V No audio Normal menu > of Power Board Screen normal voltage Speaker Out Cancel OFF Replace Power Board and repair parts Check Speaker...
Page 58 Standard Repair Process Established C. Audio error 2014.01.20 Error date LCD TV symptom Wrecked audio/ discontinuation/noise Revised date 9/13 → abnormal audio/discontinuation/noise is same after “Check input signal” compared to No audio ☞A25 Wrecked audio/ Check and replace Discontinuation/ Check audio speaker and Noise for B+ Voltage (24V)
Page 59 Standard Repair Process D. General Function Problem Established 2014.01.20 Error date LCD TV symptom Remote control & Local switch checking Revised date 10/13 Replace Main B/D ☞A27 ☞A27 ☞A27 Check & Repair Check B+ 3.5V Check IR Check R/C itself Normal Normal Normal...
Page 60 Standard Repair Process Established D. Function error 2014.01.20 Error date LCD TV symptom External device recognition error Revised date 11/13 Check technical Check External Input and Signal information Technical Replace Main B/D input Component input? information? - Fix information Recognition error signal - S/W Version RGB,HDMI/...
Page 61 Standard Repair Process Established E. Noise 2014.01.20 Error date LCD TV symptom Circuit noise, mechanical noise Revised date 12/13 Replace PSU(with LED driver) Identify Check Circuit noise location of noise Replace LED driver noise type Check location of Mechanical noise noise ※...
Page 62 Standard Repair Process Established F. Exterior defect 2014.01.20 Error date LCD TV symptom Exterior defect Revised date 13/13 Zoom part Module Replace module damage with exterior damage Cabinet Replace cabinet damage Remote controller Replace remote controller damage Stand Replace stand dent...
Page 63 Contents of LCD TV Standard Repair Process Detail Technical Manual Error symptom Content Page Remarks Check LCD back light with naked eye LED driver B+ 24V measuring method A. Video error_ No video/Normal audio Check White Balance value Power Board voltage measuring method TUNER input signal strength checking method A.
Page 64 Contents of LCD TV Standard Repair Process Detail Technical Manual Continued from previous page Error symptom Content Page Remarks Check front display LED B. Power error_No power Check power input Voltage & ST-BY 5V Checking method when power is ON B.
Page 65 Standard Repair Process Detail Technical Manual Error Established error_No 2014. 01 .20 A. Video video/Normal audio symptom date LCD TV Revised Content Check LCD back light with naked eye date After turning on the power and disassembling the case, check with the naked eye, whether you can see light from module holes.
Page 66 Standard Repair Process Detail Technical Manual Error Established A. Video error_No video/Normal audio 2014. 01 .20 symptom date LCD TV Revised Content LED driver B+ 24V measuring method date Check the DC 24V 24 Pin 9, 10, 16...
Page 67 Standard Repair Process Detail Technical Manual Error Established A. Video error_No video/Normal audio 2014. 01 .20 symptom date LCD TV Revised Content Check White Balance value date <ALL MODELS> Entry method Entry method 1. Press the ADJ button on the remote controller for adjustment. 1.
Page 68 Standard Repair Process Detail Technical Manual Error Established A. Video error_No video/ Audio 2014. 01 .20 symptom date LCD TV Revised Content Power Board voltage measuring method date Check the 12V, 3.5V. 24 Pin (Power Board ↔ Main Board) SMAW200-H24S5 Power on Inverter On 3.5V...
Page 69 Standard Repair Process Detail Technical Manual Error Established A. Video error_Video error, video lag/stop 2014. 01 .20 symptom date LCD TV Revised Content TUNER input signal strength checking method date <ALL MODELS>  Settings Quick Programmes  Programme Tuning When the signal is strong, use the attenuator (-10dB, -15dB, -20dB etc.)
Page 70 Standard Repair Process Detail Technical Manual Error Established A. Video error_Video error, video lag/stop 2014. 01 .20 symptom date LCD TV Revised LCD-TV Version checking method Content date <ALL MODELS> 1. Checking method for remote controller for adjustment Version Press the IN-START with the remote controller for adjustment...
Page 71 Standard Repair Process Detail Technical Manual Error A. Video error _Vertical/Horizontal bar, residual Established 2014. 01 .20 symptom date image, light spot LCD TV Revised Content LCD TV connection diagram date [LB42B models] [LB42A models] As the part connecting to the external input, check the screen condition by signal...
Page 72 Standard Repair Process Detail Technical Manual Error Established A. Video error_Color error 2011. 12 .14 symptom date LCD TV Revised Content Check Link Cable (EPI) reconnection condition date Check the contact condition of the Link Cable, especially dust or mis insertion.
Page 73 Standard Repair Process Detail Technical Manual Error Established A. Video error_Color error 2014. 01 .20 symptom date LCD TV Revised Adjustment Test pattern - ADJ Key Content date You can view 6 types of patterns using the ADJ Key Checking item : 1. Defective pixel 2.
Page 74 Appendix : Exchange EPI Cable or Main B/D (1) Solder defect, CNT Broken Solder defect, CNT Broken Solder defect, CNT Broken T-Con Defect, CNT Broken T-Con Defect, CNT Broken Abnormal Power Section Solder defect, CNT Broken Solder defect, CNT Broken T-Con Defect, CNT Broken Abnormal Power Section Solder defect, Short/Crack...
Page 75 Appendix : Exchange EPI Cable or Main B/D (2) Abnormal Power Section Abnormal Power Section Solder defect, Short/Crack Abnormal Display Fuse Open, Abnormal power section Solder defect, Short/Crack GRADATION Noise GRADATION...
Page 76 Appendix : Exchange Power Board No Light Dim Light Dim Light Dim Light No picture/Sound Ok A - 3/5...
Page 77 Appendix : Exchange the Module (1) Panel Mura, Light leakage Panel Mura, Light leakage Press damage Crosstalk Press damage Crosstalk Un-repairable Cases In this case please exchange the module. Press damage A - 4/5...
Page 78 Appendix : Exchange the Module (2) Vertical Line Vertical Block Vertical Block Source TAB IC Defect Source TAB IC Defect Source TAB IC Defect Horizontal Block Horizontal line Horizontal Block Gate TAB IC Defect Gate TAB IC Defect Gate TAB IC Defect Gate TAB IC Defect Gate TAB IC Defect Un-repairable Cases...
Page 79 Standard Repair Process Detail Technical Manual Error Established B. Power error _No power 2014. 01 .20 symptom date LCD TV Revised Content Check front display LED date Front LED control : Menu  General  Standby Light  ON/ Off ST-BY condition: Red Power ON condition: Turn Off...
Page 80 Standard Repair Process Detail Technical Manual Error Established B. Power error _No power 2014. 01 .20 symptom date LCD TV Revised Content Check power input voltage and ST-BY 3.5V date Check the 3.5V (3, 5, 6 Pin) 24 Pin (Power Board ↔ Main Board) SMAW200-H24S5 Power on Inverter On...
Page 81 Standard Repair Process Detail Technical Manual Error Established B. Power error _No power 2014. 01 .20 symptom date LCD TV Revised Content Checking method when power is ON date Check “power on” pin is high 24 Pin (Power Board ↔ Main Board) SMAW200-H24S5 Power on Inverter On...
Page 82 Standard Repair Process Detail Technical Manual Error Established B. Power error _Off when on, off whiling viewing 2014. 01 .20 symptom date LCD TV Revised Content POWER OFF MODE checking method date <ALL MODELS> Entry method 1. Press the IN-START button of the remote controller for adjustment 2.
Page 83 Standard Repair Process Detail Technical Manual Error Established C. Audio error_No audio/Normal video 2014. 01 .20 symptom date LCD TV Revised Content Checking method in menu when there is no audio date <ALL MODELS> Checking method 1. Press the Setting button on the remote controller 2.
Page 84 Standard Repair Process Detail Technical Manual Error Established C. Audio error_No audio/Normal video 2014. 01 .20 symptom date LCD TV Revised Voltage and speaker checking method Content date when there is no audio [LB42A models] 24 Pin (Power Board ↔ Main Board) ①...
Page 85 Standard Repair Process Detail Technical Manual Error D. Function error_ No response in remote controller, Established 2014. 01 .20 symptom date key error LCD TV Revised Content Remote controller operation checking method date [LB42B models] [LB42A models] P4000 +3.5V_WOL BT_RESET WIFI_DM WIFI_DP WIFI_POWER_ON...
Page 86 Standard Repair Process Detail Technical Manual Error Established Display has error especially color 2014. 01 .20 symptom date LCD TV Revised Content V-Com checking and adjust method date Entry method 1. Press the ADJ button on the remote controller for adjustment. 2.

This manual is also suitable for:

70lb656t 70lb659y 70lb6560-ta 70lb656t-ta 70lb659y-ta