LG 50PM4700 Service Manual

Chassis: pa22a

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User manual (178 pages)

Service manual (74 pages)

Specifications (2 pages)

Table Of Contents

PLASMA TV

SERVICE MANUAL

CHASSIS : PA22A

MODEL : 50PM4700

CAUTION

BEFORE SERVICING THE CHASSIS,

READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

P/NO : MFL67341704 (1201-REV00)

North/Latin America

Europe/Africa

Asia/Oceania

50PM4700-TA

Internal Use Only

http://aic.lgservice.com

http://eic.lgservice.com

http://biz.lgservice.com

Printed in Korea

Table of Contents

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Summary of Contents for LG 50PM4700

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 : PA22A MODEL : 50PM4700 50PM4700-TA CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. P/NO : MFL67341704 (1201-REV00) Printed in Korea...
Page 2: Table Of Contents
SPECIFICATION ..................4 ADJUSTMENT INSTRUCTION ..............6 BLOCK DIAGRAM .................. 10 EXPLODED VIEW .................. 11 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: Specification
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 RGB/DVI Audio, Component L/R Input SPDIF Out (1 EA) SPDIF Out USB (2EA) For SVC, S/W Download, X-Studio, DivX Ethernet LAN(1EA) - 5 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 6: Adjustment Instruction
Tool option 5 47703 47703 47703 14933 Tool option 6 1561 1561 1561 1561 Tool option 7 8235 9259 8235 8235 - 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 Warm B 00~FF Cool R 00~FF Cool G 00~FF Cool B 00~FF Cool R,G,B 00~FF Medium 00~FF Warm 00~FF - 8 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 9 (6) When TV turns on, check the Updated version on Product/ ‘Mute Key’ on the controller. Service Info. MENU. - 9 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 11: 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 - 11 - Only for training and service purposes...
Page 12 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 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 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 19 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 20 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 21 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 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 25 NetCast 3.0 PA22A/B Training manual 목차 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 26 Power 18pin LVDS 51P LVDS 81P Main processor Micom DDR3 Speaker 4pin EMMC Audio Amp IR/ RF Emitter 16pin Wifi 4pin Copyright © 2012 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 27 X board Emitter 60PM9700-TA Model block diagram 60PM9700-TA 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 28 PM970,PM690 ⑤ ② ① ■ built in WiFi ,PM670 dongle WIFI function ready other models Emitter PM690 WiFi Dongle Dongle Dongle Copyright © 2012 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 29 IR & RF Cables 2012 Netcast 3.0 Ass’y & Cables 2012 Netcast 3.0 Cable Arrangement Copyright © 2012 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 30 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 32 HDMI Audio Trouble Shooting USB Trouble Shooting Digital TV Recording Fail Trouble Shooting OPTIC Audio Out Trouble Shooting WIFI-B/I 3D Emitter Copyright © 2012 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 33 Replace one of IC1102 & at C1130 Recheck 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 34 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 35 1. Power-Up Boot Fail Trouble Shooting 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 36 I2S Out CVBS CVBS/COMP X-TAL Sub Micom COMP (32.768kHz) (Renesas) COMP COMP 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 37 & 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 38 I2S Out CVBS CVBS/COMP X-TAL Sub Micom COMP (32.768kHz) (Renesas) COMP COMP 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 39 2. Check Tuner I2C level (Pin #3, #4) 1.23V 3. Check Tuner IF Signal (Pin #10, #11) S2_RESET 3.3V 5. Check Ts Signal S2_F22_OUTPUT 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 40 I2S Out CVBS CVBS/COMP X-TAL Sub Micom COMP (32.768kHz) (Renesas) COMP COMP 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 41 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 42 I2S Out CVBS CVBS/COMP X-TAL Sub Micom COMP (32.768kHz) (Renesas) COMP COMP 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 43 Check Component Signal R507/R520/R523 R507/R520/R523 or & Recheck R532/R534/R550 Check Component Signal C224/C223/C219 or Replace it C214/C212/C216 Maybe MTK5369(IC100) has problems Copyright © 2012 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 44 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 45 I2S Out CVBS CVBS/COMP X-TAL Sub Micom COMP (32.768kHz) (Renesas) COMP COMP 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 46 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 47 800 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 48 I2S Out CVBS CVBS/COMP X-TAL Sub Micom COMP (32.768kHz) (Renesas) COMP COMP 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 49 720 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 50 I2S Out CVBS CVBS/COMP X-TAL Sub Micom COMP (32.768kHz) (Renesas) COMP COMP 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 51 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 52 I2S Out CVBS CVBS/COMP X-TAL Sub Micom COMP (32.768kHz) (Renesas) COMP COMP 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 53 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 54 RGB_LR I2S Out CVBS CVBS/COMP X-TAL Sub Micom (32.768kHz) (Renesas) COMP COMP 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 55 Check video output video trouble shooting Maybe MTK5369(IC100) internal Follow procedure All source audio DSP has problems. audio trouble shooting Replace It Copyright © 2012 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
Page 56 I2S Out CVBS CVBS/COMP X-TAL Sub Micom COMP (32.768kHz) (Renesas) COMP COMP 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 57 Q1001, C1000, R1006, R1012, C241 R1013 & Recheck Follow procedure All source Maybe MTK5369(IC100) audio 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 58 I2S Out CVBS CVBS/COMP X-TAL Sub Micom COMP (32.768kHz) (Renesas) COMP COMP 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 59 Check Signal C537/C538/C539/540/C541/C542 C537/C538/C539/540/C541/C542 & Recheck Follow procedure All source Maybe MTK5369(IC100) audio 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 60 I2S Out CVBS CVBS/COMP X-TAL Sub Micom COMP (32.768kHz) (Renesas) COMP COMP 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 61 Check EDID Pull-Up Voltage /R605/R607 & Recheck Follow procedure All source Maybe MTK5369(IC100) audio 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 62 I2S Out CVBS CVBS/COMP X-TAL Sub Micom COMP (32.768kHz) (Renesas) COMP COMP 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 63 - 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 64 I2S Out CVBS CVBS/COMP X-TAL Sub Micom COMP (32.768kHz) (Renesas) COMP COMP 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 65 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 66 I2S Out CVBS CVBS/COMP X-TAL Sub Micom COMP (32.768kHz) (Renesas) COMP COMP 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 67 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 68 I2S Out CVBS CVBS/COMP X-TAL Sub Micom COMP (32.768kHz) (Renesas) COMP COMP 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 69 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 70 2 x 2 [Tx, Rx] 2 stream spatial Multi Speed 300Mbps ODM Company Arcadyan 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 71 I2S Out CVBS CVBS/COMP X-TAL Sub Micom COMP (32.768kHz) (Renesas) COMP COMP 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 72 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 73 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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LG 50PM4700 Service Manual

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Summary of Contents for LG 50PM4700

Page 2: Table Of Contents

Page 3: Safety Precautions

Page 4: Specification

Page 6: Adjustment Instruction

Page 10: Block Diagram

Page 11: Exploded View

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Table of Contents