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LCD TV
SERVICE MANUAL
CHASSIS : LD01R
MODEL: 22LK330/330A/330N/330U/335C
MODEL:
MODEL:
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO : MFL67002116 (1110-REV00)
22LK330/330A/330N/330U/335C-ZH
22LK331
North/Latin America
Europe/Africa
Asia/Oceania
22LK331-ZG
Internal Use Only
http://aic.lgservice.com
http://eic.lgservice.com
http://biz.lgservice.com
Printed in Korea
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Summary of Contents for LG 22LK330
- Page 1 Internal Use Only North/Latin America http://aic.lgservice.com Europe/Africa http://eic.lgservice.com Asia/Oceania http://biz.lgservice.com LCD TV SERVICE MANUAL CHASSIS : LD01R MODEL: 22LK330/330A/330N/330U/335C MODEL: 22LK330/330A/330N/330U/335C-ZH MODEL: 22LK331 22LK331-ZG CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. P/NO : MFL67002116 (1110-REV00)
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Page 2: Table Of Contents
PRODUCT SAFETY ..................3 SPECIFICATION ..................6 ADJUSTMENT INSTRUCTION ..............9 TROUBLE SHOOTING ................14 BLOCK DIAGRAM...................22 EXPLODED VIEW .................. 23 SCHEMATIC CIRCUIT DIAGRAM .............. Copyright ©2011 LG Electronics. Inc. All right reserved. - 2 - LGE Internal Use Only Only for training and service purposes... -
Page 3: Product Safety
An other abnormality exists that must be corrected before the receiver is returned to the customer. Copyright ©2011 LG Electronics. Inc. All right reserved. - 3 - LGE Internal Use Only Only for training and service purposes... - Page 4 Copyright ©2011 LG Electronics. Inc. All right reserved. - 4 - LGE Internal Use Only Only for training and service purposes...
- Page 5 CAUTION: Maintain original spacing between the replaced component and adjacent components and the circuit board to prevent excessive component temperatures. Copyright ©2011 LG Electronics. Inc. All right reserved. - 5 - LGE Internal Use Only Only for training and service purposes...
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Page 6: Specification
DVB-C CI : Switzerland, Austria, Slovenia, Hungary, Bulgaria CI+ : Switzerland(UPC,Cablecom), Netherland(Ziggo), Germany(KDG,CWB), Finland(labwise) DVB-S CI+ : Germany(Astra HD+) Copyright ©2011 LG Electronics. Inc. All right reserved. - 6 - LGE Internal Use Only Only for training and service purposes... - Page 7 47.72 59.8 84.75 WXGA FHD model 1280*1024 63.981 60.02 108.875 SXGA FHD model 1920*1080 67.5 148.5 WUXGA FHD model Copyright ©2011 LG Electronics. Inc. All right reserved. - 7 - LGE Internal Use Only Only for training and service purposes...
- Page 8 47.72 59.8 84.75 WXGA HDCP 1280*720 74.25 HDCP 1280*1024 63.595 60.02 108.875 SXGA HDCP 1920*1080 67.5 148.5 WUXGA HDCP Copyright ©2011 LG Electronics. Inc. All right reserved. - 8 - LGE Internal Use Only Only for training and service purposes...
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Page 9: Adjustment Instruction
In this case, you have to channel recover. If all channel data is cleared, you didn’t have a DTV/ATV test on production line. Copyright ©2011 LG Electronics. Inc. All right reserved. - 9 - LGE Internal Use Only... - Page 10 13. Touch Sensitivity Setting HDMI1 6503C001000 <Caution> Never connect HDMI & D-sub cable when EDID HDMI2 6503C002000 download. HDMI3 6503C003000 Copyright ©2011 LG Electronics. Inc. All right reserved. - 10 - LGE Internal Use Only Only for training and service purposes...
- Page 11 And Mechanical Power Switch must be set “ON”. Full White Pattern CA-210 COLOR ANALYZER TYPE: CA-210 RS-232C Communication Copyright ©2011 LG Electronics. Inc. All right reserved. - 11 - LGE Internal Use Only Only for training and service purposes...
- Page 12 - GND Test = Power cord GND and Signal cord GND. - Hi-pot Test = Power cord GND and LIVE & NEUTRAL. (4) LEAKAGE CURRENT: At 0.5 mArms Copyright ©2011 LG Electronics. Inc. All right reserved. - 12 - LGE Internal Use Only...
- Page 13 4) Check whether the key was downloaded or not at ‘In Start’ menu. (Refer to below.) 3) Result value i 01 OK 1d1852d21c1ed5dcx CI+ key Value Copyright ©2011 LG Electronics. Inc. All right reserved. - 13 - LGE Internal Use Only Only for training and service purposes...
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Page 14: Troubleshooting
P10000, P10001 3 Pin : 24 V P10000, P10001 4 Pin : 24 V Check Mstar LVDS Output. Replace Mstar(IC101) or Main Board. Change Module. Copyright ©2011 LG Electronics. Inc. All right reserved. - 14 - LGE Internal Use Only Only for training and service purposes... - Page 15 Check CVBS Signal. Bad Tuner. Replace Tuner. TU3700 8 Pin Check Mstar LVDS Output. Replace Mstar(IC101) or Main Board. Copyright ©2011 LG Electronics. Inc. All right reserved. - 15 - LGE Internal Use Only Only for training and service purposes...
- Page 16 Y/PB/ PR signal Line. Check COMP_DET Signal. Replace R1615. Check Mstar LVDS Output. Replace Mstar(IC101) o r Main Board. Copyright ©2011 LG Electronics. Inc. All right reserved. - 16 - LGE Internal Use Only Only for training and service purposes...
- Page 17 H/V_Sync/R/G/B Signal Line. Check DSUB_DET. Replac e R1146 or R1147. Check Mstar LVDS Output. Replace Mstar(IC101) or Main board. Copyright ©2011 LG Electronics. Inc. All right reserved. - 17 - LGE Internal Use Only Only for training and service purposes...
- Page 18 Replace Main Board. If no problem, check signal line. Check Mstar LVDS Output. Replace Mstar(IC101) o r Main Board. Copyright ©2011 LG Electronics. Inc. All right reserved. - 18 - LGE Internal Use Only Only for training and service purposes...
- Page 19 Replace connector. Check Connector & P501. if found to be damaged. Check speaker resistance Replace speaker. and connector damage. Copyright ©2011 LG Electronics. Inc. All right reserved. - 19 - LGE Internal Use Only Only for training and service purposes...
- Page 20 Check CVBS Signal Bad Tubner. Replace Tuner. TU3700 8 Pin. Follow procedure ’9. All source audio’ trouble shooting guide. Copyright ©2011 LG Electronics. Inc. All right reserved. - 20 - LGE Internal Use Only Only for training and service purposes...
- Page 21 Check JK1102 & Signal Line. Replace Jack. Follow procedure ’9. All source audio’ trouble shooting guide. Copyright ©2011 LG Electronics. Inc. All right reserved. - 21 - LGE Internal Use Only Only for training and service purposes...
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Page 22: Block Diagram
BLOCK DIAGRAM CI Slot Copyright ©2011 LG Electronics. Inc. All right reserved. - 22 - LGE Internal Use Only Only for training and service purposes... -
Page 23: Exploded View
X-RADIATION, Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer. Copyright LG Electronics. Inc. All right reserved. - 23 - LGE Internal Use Only Only for training and service purposes... - Page 24 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR MASTER FRC THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
- Page 25 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR SLAVE FRC THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
- Page 26 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. DDR3 4Mbit Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
- Page 27 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. T-Con Power/P-Gamma/GPM Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
- Page 28 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR URSA5 Power Block THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
- Page 29 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. XTR T-Con block Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
- Page 30 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LVDS/mini-LVDS wafer Copyright © 2011 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...