LG 42PM4700 Service Manual

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Owner's manual (232 pages)

User manual (178 pages)

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Summary of Contents for LG 42PM4700

Page 1 Internal Use Only North/Latin America http://aic.lgservice.com Europe/Africa http://eic.lgservice.com Asia/Oceania http://biz.lgservice.com PLASMA TV SERVICE MANUAL CHASSIS : PD22B MODEL : 42PM4700 42PM4700-ZA CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. P/NO : MFL67461706 (1202-REV00) Printed in Korea...
Page 2 SPECIFICATION ..................4 ADJUSTMENT INSTRUCTION ..............6 BLOCK DIAGRAM .................. 11 EXPLODED VIEW .................. 12 SCHEMATIC CIRCUIT DIAGRAM .............. - 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 1) Temp. : -20 ~ 60 deg 2) Humidity : 10 ~ 90 % Input Voltage AC100 ~ 240V, 50/60Hz Maker LG - 4 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 5 SPDIF Out (1 EA) SPDIF Out USB (1EA) For SVC, S/W Download, X-Studio, DivX Ethernet LAN(1EA) PCMCI (1EA) Common Interface - 5 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 6: Adjustment Instruction
1561 1561 Tool option 7 8239 9263 8239 8239 8239 In case of France, Tool Option 5 is 47959/47959/47959/47957/15189. - 6 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 7 HDMI1 HDMI2 HDMI3 HDMI4 MEDIUM 0.285 0.293 9300K 0.002 CheckSum 3FA6 3F96 3F86 3F76 WARM 0.313 0.329 6500K 0.002 - 7 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 8 Nigeria Cool R,G,B 00~FF U.A.E Medium 00~FF Saudi Arabia Barhrain Warm 00~FF Egypt, Iran, Jordan Lebanon Pakistan 16642 Israel(H.Y.E) - 8 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 9 (2) connect each other LAN Port Jack. (3) Play Test (F9) button and confirm OK Message. (4) remove LAN CABLE - 9 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 10 (6) When TV turns on, check the Updated version on Product/ Service Info. MENU. * After downloading, have to adjust TOOL OPTION again. - 10 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 12: Exploded View
X-RADIATION, Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer. Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only - 12 - Only for training and service purposes...
Page 13 FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2012 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 14 FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2012 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 15 FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2012 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 16 FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2012 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 17 FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2012 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 18 FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2012 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 19 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. PCMCI Slot/WiFi/PEN Copyright © 2012 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 20 FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2012 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 21 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. MICOM,SUB ASSY Copyright © 2012 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 22 FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2012 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 23 FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2012 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 24 FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2012 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 26 Training manual (PD22A/B) Contents 1. System Design 2. Trouble Shooting Guide Copyright © 2012 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 27 Main Board for GP4 PDP Power 18pin LVDS 80P Main processor Micom DDR3 Speaker 4pin EMMC IR/ RF Emitter 16pin Audio Amp Wifi 4pin Copyright © 2012 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 28 X board Emitter 50PM970S-ZA Model block diagram 50PM970S-ZA Model Image Z Board Power Board Y Board ASIC Main Wifi X board Emitter Copyright © 2012 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 29 ■ no dongle PM680,PM670 assessory function ready other models Emitter PM690 ■ built in pen (Pen Touch dongle WiFi Model) Dongle Dongle Copyright © 2012 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 31 ⑤ Adjusting Voltage (Set up/-Vy/Vsc/Ve/Vzb) ⑭ Max. Amps ⑥ The trade name of LG Electronics ⑦ Manufactured date(Year & Month) ⑧ Warning Copyright © 2012 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 33 Digital TV Audio Trouble Shooting while recording (Watch & Record) Analog TV Video Trouble Shooting while recording (Watch & Record) Analog TV Audio Trouble Shooting while recording (Watch & Record) Copyright © 2012 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 34 Replace one of IC1102 & Recheck at C1130 Replace one of IC400 ~ 403 Replace IC103 EMMC Memory Replace IC100 & Recheck & Recheck Copyright © 2012 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 35 Measure point Measure point L1100 : 17V L1101 : 5V P1100 Measure point PSU_ERR L1102 : 5V _ST 5V_ST RL_ON AC_DET MOD_ON Copyright © 2012 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 36 Measure point Typ. 3.3V Measure point Typ. 1.5V C110 C112 C113 Measure point Typ. 1.2V Copyright © 2012 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 37 RGB_LR I2S Out CVBS CVBS/COMP X-TAL Micom COMP (32.768kHz) (Renesas SCART SCART RF Emitter OPTIC SPDIF OUT Module(Bluetooth) UART RS-232C Ethernet Copyright © 2012 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 38 & Recheck Check all multi voltage Check power up boot sequence (12v, 3.3v, 1.2v) Check LVDS Cable Replace Cable Check PDP Module Copyright © 2012 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 39 RGB_LR I2S Out CVBS CVBS/COMP X-TAL Micom COMP (32.768kHz) (Renesas SCART SCART RF Emitter OPTIC SPDIF OUT Module(Bluetooth) UART RS-232C Ethernet Copyright © 2012 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 40 4. Check Ts level (Pin #20, #21, #22, #23, S2_F22_OUTPUT S2_SCL #24, #25, #26, #27) S2_SDA 5. Check Ts Signal GND_4 Copyright © 2012 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 41 RGB_LR I2S Out CVBS CVBS/COMP X-TAL Micom COMP (32.768kHz) (Renesas SCART SCART RF Emitter OPTIC SPDIF OUT Module(Bluetooth) UART RS-232C Ethernet Copyright © 2012 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 42 1. Check Tuner power (Pin #5, #7) S2_RESET 3.3V 2. Check Tuner I2C level (Pin #3, #4) S2_F22_OUTPUT 3. Check Video signal (Pin #8) S2_SCL S2_SDA GND_4 Copyright © 2012 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 43 RGB_LR I2S Out CVBS CVBS/COMP X-TAL Micom COMP (32.768kHz) (Renesas SCART SCART RF Emitter OPTIC SPDIF OUT Module(Bluetooth) UART RS-232C Ethernet Copyright © 2012 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 44 Replace one of Check Component Signal R507/R520/R523 R507/R520/R523/R532/R534/R550 & Recheck Check Component Signal Replace it C224/C223/C219 Maybe MTK5369(IC100) has problems C257/C216/C212/ R532/R534/R550 Copyright © 2012 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 45 1920 X 1080 (i) Dot Freq : 74.25 MHz H - Freq : 33.75 kHz V – Freq : 60 Hz Copyright © 2012 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 46 RGB_LR I2S Out CVBS CVBS/COMP X-TAL Micom COMP (32.768kHz) (Renesas SCART SCART RF Emitter OPTIC SPDIF OUT Module(Bluetooth) UART RS-232C Ethernet Copyright © 2012 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 47 Check RGB Signal Replace It & Recheck R510/R511/R512 Check Sync Signal Replace one of R514/R515 R514/R515 & Recheck` Maybe MTK5369(IC100) has problems Copyright © 2012 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 48 800 X 600 (p) Dot Freq : 40 MHz H - Freq : 37.879 kHz V – Freq : 60.317 Hz Copyright © 2012 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 49 RGB_LR I2S Out CVBS CVBS/COMP X-TAL Micom COMP (32.768kHz) (Renesas SCART SCART RF Emitter OPTIC SPDIF OUT Module(Bluetooth) UART RS-232C Ethernet Copyright © 2012 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 50 720 X 480 (i) Dot Freq : 13.5 MHz H - Freq : 15.734 kHz V – Freq : 59.939 Hz Copyright © 2012 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 51 RGB_LR I2S Out CVBS CVBS/COMP X-TAL Micom COMP (32.768kHz) (Renesas SCART SCART RF Emitter OPTIC SPDIF OUT Module(Bluetooth) UART RS-232C Ethernet Copyright © 2012 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 52 Check HDMI Cable Check EDID D/L Re-Download EDID Check HDMI Jack Replace Jack JK600, JK601, JK602, JK603 Maybe MTK5369 (IC100) has problems Copyright © 2012 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 53 RGB_LR I2S Out CVBS CVBS/COMP X-TAL Micom COMP (32.768kHz) (Renesas SCART SCART RF Emitter OPTIC SPDIF OUT Module(Bluetooth) UART RS-232C Ethernet Copyright © 2012 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 54 Check IC800 Power Replace It & Recheck 17V, 3.3V Check BCM2112 I2S Output Replace It & Recheck AR800 Maybe MTK5369 (IC100) has problems Copyright © 2012 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 55 RGB_LR I2S Out CVBS CVBS/COMP X-TAL Micom COMP (32.768kHz) (Renesas SCART SCART RF Emitter OPTIC SPDIF OUT Module(Bluetooth) UART RS-232C Ethernet Copyright © 2012 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 56 Check video output trouble shooting Follow procedure All source audio Maybe MTK5369(IC100) internal trouble shooting audio DSP has problems. Replace It Copyright © 2012 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 57 RGB_LR I2S Out CVBS CVBS/COMP X-TAL Micom COMP (32.768kHz) (Renesas SCART SCART RF Emitter OPTIC SPDIF OUT Module(Bluetooth) UART RS-232C Ethernet Copyright © 2012 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 58 Q1001, C1000, R1006, R1012, R1013 C241 & Recheck Follow procedure All source audio Maybe MTK5369(IC100) audio trouble shooting block has problems. Replace It Copyright © 2012 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 59 RGB_LR I2S Out CVBS CVBS/COMP X-TAL Micom COMP (32.768kHz) (Renesas SCART SCART RF Emitter OPTIC SPDIF OUT Module(Bluetooth) UART RS-232C Ethernet Copyright © 2012 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 60 Check Signal C537/C538/C539/540/C541/C542 & C537/C538/C539/540/C541/C542 Recheck Follow procedure All source audio Maybe MTK5369(IC100) audio trouble shooting block has problems. Replace It Copyright © 2012 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 61 RGB_LR I2S Out CVBS CVBS/COMP X-TAL Micom COMP (32.768kHz) (Renesas SCART SCART RF Emitter OPTIC SPDIF OUT Module(Bluetooth) UART RS-232C Ethernet Copyright © 2012 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 62 Check EDID Pull-Up Voltage 605/R607 & Recheck Follow procedure All source audio Maybe MTK5369(IC100) audio trouble shooting block has problems. Replace it Copyright © 2012 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 63 RGB_LR I2S Out CVBS CVBS/COMP X-TAL Micom COMP (32.768kHz) (Renesas SCART SCART RF Emitter OPTIC SPDIF OUT Module(Bluetooth) UART RS-232C Ethernet Copyright © 2012 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 64 - USB power could be disabled by inrushing current - In this case, remove the device and try to reboot the TV (AC power off/on) Copyright © 2012 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 65 RGB_LR I2S Out CVBS CVBS/COMP X-TAL Micom COMP (32.768kHz) (Renesas SCART SCART RF Emitter OPTIC SPDIF OUT Module(Bluetooth) UART RS-232C Ethernet Copyright © 2012 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 66 Check HDD Replace HDD Check USB block Use USB Trouble shooting guide Maybe MTK5369(IC100) USB block has problems. Replace It. Copyright © 2012 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 67 RGB_LR I2S Out CVBS CVBS/COMP X-TAL Micom COMP (32.768kHz) (Renesas SCART SCART RF Emitter OPTIC SPDIF OUT Module(Bluetooth) UART RS-232C Ethernet Copyright © 2012 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 68 16. OPTIC Audio Out Trouble Shooting Check SPDIF signal (R506) Replace MTK5369 Check Signal (JK505 #3) Maybe MTK5369 (IC100) has problems. Replace It. Copyright © 2012 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 69 RGB_LR I2S Out CVBS CVBS/COMP X-TAL Micom COMP (32.768kHz) (Renesas SCART SCART RF Emitter OPTIC SPDIF OUT Module(Bluetooth) UART RS-232C Ethernet Copyright © 2012 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 70 Check Wifi Cable Check 5V voltage level at Replace one of L700 L700& Recheck Maybe MTK5369 (IC100) has problems. Replace It. Copyright © 2012 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 71 2 x 2 [Tx, Rx] 2 stream spatial Multi Speed 300Mbps ODM Company Arcadyan, LGIT Supply Type Dongle Type & Built In Copyright © 2012 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 72 RGB_LR I2S Out CVBS CVBS/COMP X-TAL Micom COMP (32.768kHz) (Renesas SCART SCART RF Emitter OPTIC SPDIF OUT Module(Bluetooth) UART RS-232C Ethernet Copyright © 2012 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 73 Check 3D Emitter Cable Check 5V voltage level at Replace one of L900 L900& Recheck Maybe MTK5369 (IC100) has problems. Replace It. Copyright © 2012 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 74 DTV • F/W update (Not Use) • 3D left/right frame sync signal 3D_SYNC_RF from DTV ( 60Hz, 59.94Hz,50Hz, 48Hz, 47.95Hz) Copyright © 2012 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...

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Summary of Contents for LG 42PM4700

Page 3: Safety Precautions

Page 6: Adjustment Instruction

Page 11: Block Diagram

Page 12: Exploded View

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