LG 43LW540S Service Manual
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Also See for 43LW540S:
- Owner's manual (29 pages) ,
- Easy setup manual (8 pages) ,
- Owner's manual (53 pages)
Table of Contents
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Summary of Contents for LG 43LW540S
- Page 1 Internal Use Only LED TV SERVICE MANUAL CHASSIS : LA6ES MODEL : 43LW540S 43LW540S-UA MODEL : 43LW540S 43LW540S-UF CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. P/NO : MFL69569605 (1612-REV01)
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Page 2: Table Of Contents
ADJUSTMENT INSTRUCTION ............... 9 TROUBLE SHOOTING GUIDE ............... 15 BLOCK DIAGRAM .................. 23 EXPLODED VIEW .................. 24 DISASSEMBLY ..................25 - 2 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes... -
Page 3: Safety Precautions
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 4: Servicing Precautions
- 4 - 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...
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Page 6: Specification
2) Humidity : ~ 80 % Storage Environment 1) Temp : -20 ~ 60 deg 2) Humidity : ~ 85 % - 6 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes... - Page 7 HDTV 1080P 1920*1080 26.97 23.976 74.176 HDTV 1080P 1920*1080 33.75 30.00 74.250 HDTV 1080P 1920*1080 33.71 29.97 74.176 HDTV 1080P - 7 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
- Page 8 UDTV 2160P UHD only 4096*2160 135.00 59.94 593.41 UDTV 2160P UHD only 4096*2160 135.00 60.00 594.00 UDTV 2160P UHD only - 8 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
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Page 9: Adjustment Instruction
(1) Shipment conditions (2) Tool option menu (3) USB Download (S/W Update, Option and Service only) (4) Preset CH Information - 9 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes... - Page 10 → Only when internal pattern is not available ※ Color Analyzer Matrix should be calibrated using HDMI1 6D08 E508 CS-1000 HDMI2 6DF8 E5F8 - 10 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
- Page 11 First decrease B, so make x a little more than the target. ii) Adjust x value by decreasing the G - 11 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
- Page 12 - After final inspection, press In-Stop key of the Adj. R/C and check that the unit goes to Stand-by mode. 10-19 20-35 36-49 50-79 80-119 Over 120 - 12 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
- Page 13 Output, L/R - EQ/AVL/Clear (Distor- Voice: Off tion=10% (2) Speaker (6Ω max Output) Impedance) (3) 32LW300C ONLY - 13 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
- Page 14 (Power only mode -> Fived 1W Default) -> Check the input signal(1KHZ, Sine wave) and the wave of output by utilizing oscilloscope - 14 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
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Page 15: Trouble Shooting Guide
Make sure the Inverter control Exchange the circuit or and error check P401 11pin : High The LCD module Exchange the LCD Module - 15 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes... - Page 16 Exchange the Tuner : TU3703 3,4,5,6,7 pin Check the LVDS output signal of Exchange the SoC(IC101) SoC(IC101) Or Main board - 16 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
- Page 17 Exchange the SoC(IC101) Check the HDMI signal Or Main board Exchange the SoC(IC101) Check the LVDS signal output Or Main board - 17 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
- Page 18 Check the DSUB_DET signal Exchange the resistor R3308 R3308 Check the LVDS output signal of Exchange the SoC(IC101) SoC(IC101) Or Main board - 18 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
- Page 19 Exchange the Component Jack Or R1712 signal R1712 Make sure the LVDS output signal of Exchange the SoC(IC101) SoC(IC101) Or Main board - 19 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
- Page 20 Exchange the connector If Check the connector P5600 the connector is defect Check the Speaker resistor or connector Exchange the speaker - 20 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
- Page 21 Check the signal of JK1702 Exchange the Jack R1714, R1715 Implement the “8. Audio of all input” Of Malfunction guide - 21 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
- Page 22 Replace Phone Jack(JK3400) 4,5 pin. Replace Phone Jack Check JK3400 if found to be damaged Check External Speaker Replace External speaker. - 22 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
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Page 23: Block Diagram
BLOCK DIAGRAM - 23 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes... -
Page 24: Exploded View
Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer. - 24 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes... -
Page 25: Disassembly
- Disassemble Total Screw No. : 42ea Screw : 13 ea 10 10 Screw : 4 ea Screw :9EA “A” Screw : 4EA - 25 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes... - Page 26 BOTTOM - 26 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...