LG 55LH575A Service Manual
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Also See for 55LH575A:
- Safety and reference (41 pages) ,
- Owner's manual (37 pages) ,
- Easy setup manual (24 pages)
Related Manuals for LG 55LH575A
Summary of Contents for LG 55LH575A
- Page 1 Internal Use Only LED TV SERVICE MANUAL CHASSIS : LA66L MODEL : 55LH575A 55LH575A-UE MODEL : 55LH5750 55LH5750-UB CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. P/NO : MFL69442204 (1610-REV01)
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Page 2: Table Of Contents
SPECIFICATION ..................6 USB DOWNLOAD ................... 9 TROUBLE SHOOTING GUIDE ............... 10 BLOCK DIAGRAM .................. 16 EXPLODED VIEW .................. 17 - 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
Temp : 0 ~ 40 deg Humidity : ~ 80 % Storage Environment Temp : -20 ~ 60 deg 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 26.970 23.976 74.176 HDTV 1080P 1920*1080 33.750 30.000 74.250 HDTV 1080P 1920*1080 33.710 29.970 74.176 HDTV 1080P - 7 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
- Page 8 HDTV 1080P 1920*1080 33.75 30.00 79.20 HDTV 1080P 1920*1080 67.43 59.94 148.350 HDTV 1080P 1920*1080 67.5 60.00 148.50 HDTV 1080P - 8 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
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Page 9: Usb Download
(2) Select "Tool Option 1" and Push “OK” button. (3) Punch in the number. (Each model has their number.) - 9 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes... -
Page 10: Trouble Shooting Guide
Check Power Board Replace Main Board P2300 INV_CTL 11 pin High Check LVDS cable Check LVDS cable Check LCD Module - 10 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes... - Page 11 Check AV Jack CVBS signal Replace AV Jack JK3401 R3407 Check CVBS signal VA3415,R3421,C3411,R3407 Replace VA3415,R3421,C3411,R3407R340,C321 R340, C321 Replace IC101 or Main Board - 11 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
- Page 12 HDMI2 : VA3201, R3201, Q3200, HDMI1 : JK3201 R3204, R3203, R3200 HDMI2 : JK3202 Replace Main IC (IC101) or Main Board - 12 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
- Page 13 P5600 1, 2, 3, 4 pin P5600 or Main Board C5622, C5623, C5627, C5628 Check speaker connector Replace speaker connector Check speaker Replace speaker - 13 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
- Page 14 L : VA3411,R3418,C3405 R3423,R3425 R3423,R3425 R : VA3410,R3417,C3404 R : VA3410,R3417,C3404 R3422,R3424 R3422,R3424 Follow procedure “9. All source audio” - 14 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
- Page 15 HDMI2 : JK3202 Check HDMI pattern JK3201,JK2301 ↔ IC101 HDMI Replace Main Board pattern Replace Main IC (IC101) or Main Board - 15 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
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Page 16: Block Diagram
BLOCK DIAGRAM - 16 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes... -
Page 17: Exploded View
Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer. - 17 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...