LG 24LF454B Service Manual
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Also See for 24LF454B:
- Owner's manual (48 pages) ,
- Easy setup manual (48 pages) ,
- Easy setup manual (52 pages)
Related Manuals for LG 24LF454B
Summary of Contents for LG 24LF454B
- Page 1 Internal Use Only LED TV SERVICE MANUAL CHASSIS : LU72A MODEL : 24LF454B 24LF454B-PU 24LJ4540 24LJ4540-PU 24LJ4540-WU CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. P/NO : MFL69169575 (1612-REV00)
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Page 2: Table Of Contents
SPECIFICATION ..................6 SOFTWARE UPGRADE ................8 TROUBLE SHOOTING GUIDE ..............9 BLOCK DIAGRAM .................. 13 EXPLODED VIEW .................. 14 Copyright © LG Electronics. Inc. All right reserved. - 2 - 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. Copyright © LG Electronics. Inc. All right reserved. - 3 - LGE Internal Use Only Only for training and service purposes... -
Page 4: Servicing Precautions
Copyright © LG Electronics. Inc. All right reserved. - 4 - 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. 3. Solder the connections. Copyright © LG Electronics. Inc. All right reserved. - 5 - LGE Internal Use Only Only for training and service purposes...
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Page 6: Specification
VHF 2-13, UHF 14-69, CATV 1-135, DTV 2-69, CADTV 1-135 Interface RF / Composite(CVBS) / Component / HDMI / D-Sub / USB 22,24 LJ4540, 24LF454B serise : RF/ HDMI/USB(SVC only) 28 LJ4540 : RF/ HDMI/USB MT49x serise : RF, Component/ CVBS/ HDMI/ DSUB/ USB 5. - Page 7 1920x1080p 56.250 50.000 67.432 59.940 67.500 60.000 - Video Color Format : YcbCr 444, 422 (xvYcc is not supported) Copyright © LG Electronics. Inc. All right reserved. - 7 - LGE Internal Use Only Only for training and service purposes...
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Page 8: Software Upgrade
5) Updating is starting. 6) Updating Completed, The TV will restart automatically. * After downloading, have to adjust TOOL OPTION again. Copyright © LG Electronics. Inc. All right reserved. - 8 - LGE Internal Use Only Only for training and service purposes... -
Page 9: Trouble Shooting Guide
Replace IC503 & Check IC503 Output Recheck Voltage Level (5V) Check X300 Clock Replace X300 24MHz Replace IC405 Flash Memory Copyright © LG Electronics. Inc. All right reserved. - 9 - LGE Internal Use Only Only for training and service purposes... - Page 10 P401 (#9, #10 ) Check FFC Cable for Damage or Replace Cable Open Conductors Replace T-Con Board or Module Copyright © LG Electronics. Inc. All right reserved. - 10 - LGE Internal Use Only Only for training and service purposes...
- Page 11 1. Check RF IC(L200) Power (3.3V) Recheck 2. Check IC1001 Output voltage(3.3V) Replace TU200 or Check SCL/SDA Line(TU200 #1, #2) IC300(=> Main Scaler) Copyright © LG Electronics. Inc. All right reserved. - 11 - LGE Internal Use Only Only for training and service purposes...
- Page 12 Check JK100 for proper Replace Connector connection or Damage Check I2C Signal Re Download EDID Data (JK100) Replace Main Scaler (IC300) Copyright © LG Electronics. Inc. All right reserved. - 12 - LGE Internal Use Only Only for training and service purposes...
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Page 13: Block Diagram
BLOCK DIAGRAM Copyright © LG Electronics. Inc. All right reserved. - 13 - LGE Internal Use Only Only for training and service purposes... -
Page 14: Exploded View
Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer. Copyright © LG Electronics. Inc. All right reserved. - 14 - LGE Internal Use Only Only for training and service purposes...