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LG 50PJ350 Service Manual
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LG 50PJ350 Service Manual

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See also: Owner's Manual , Training Manual
PLASMA TV
SERVICE MANUAL
CHASSIS : PB02A
MODEL : 50PJ350
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO : MFL63140202(1004-REV00)
North/Latin America
Europe/Africa
Asia/Oceania
50PJ350-SA
Internal Use Only
http://aic.lgservice.com
http://eic.lgservice.com
http://biz.lgservice.com
Printed in Korea

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  • 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 : PB02A MODEL : 50PJ350 50PJ350-SA CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. Printed in Korea P/NO : MFL63140202(1004-REV00)
  • Page 2 CONTENTS ..........................2 SAFETY PRECAUTIONS ......................3 SPECIFICATION.........................4 ADJUSTMENT INSTRUCTION ....................8 BLOCK DIAGRAM ........................15 EXPLODED VIEW ........................16 SVC. SHEET ..........................Copyright ©2010 LG Electronics Inc. All rights 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 ©2010 LG Electronics Inc. All rights reserved. - 3 - LGE Internal Use Only Only for training and service purposes...

  • Page 4: Specifications

    Safety : UL, CSA, IEC specification, CE EMC : FCC, ICES, IEC specification, CE Model Name Market Appliance 50PJ350-SA Brazil Safety : IEC/EN60065 Copyright ©2010 LG Electronics Inc. All rights reserved. - 4 - LGE Internal Use Only Only for training and service purposes...

  • Page 5: General Specification

    2) Humidity : ~ 80 % Storage Environment 1)Temp : -20 deg ~ 60 deg 2) Humidity : 0 ~ 90 % Copyright ©2010 LG Electronics Inc. All rights reserved. - 5 - LGE Internal Use Only Only for training and service purposes...
  • Page 6 85.50 VESA (WXGA) 1280*1024 63.981 60.020 108.00 VESA (SXGA) 1600*1200 75.00 60.00 VESA (UXGA) 1920*1080 67.5 148.5 HDTV 1080P Copyright ©2010 LG Electronics Inc. All rights reserved. - 6 - LGE Internal Use Only Only for training and service purposes...
  • Page 7 HDTV 1080P 1920*1080 26.97 23.976 74.176 HDTV 1080P 1920*1080 33.75 30.00 74.25 HDTV 1080P 1920*1080 33.71 29.97 74.176 HDTV 1080P Copyright ©2010 LG Electronics Inc. All rights reserved. - 7 - LGE Internal Use Only Only for training and service purposes...

  • Page 8: Adjustment Instruction

    (1) EDID (The Extended Display Identification Data ) (2) Color Temperature (White Balance) Adjustment (3) Make sure RS-232C control (4) Selection Factory output option Copyright ©2010 LG Electronics Inc. All rights reserved. - 8 - LGE Internal Use Only Only for training and service purposes...
  • Page 9 RGB 1080p adjustment in RGB input mode If you success RGB 1080p Adjust. You can see “ADC RGB-DTV Success” Copyright ©2010 LG Electronics Inc. All rights reserved. - 9 - LGE Internal Use Only Only for training and service purposes...
  • Page 10 - Operate DDC write S/W (EDID write & read) - It will operate in the DOS mode. < For write EDID data, setting Jig and another instruments > - EDID data (Model name = LG TV) - 2010 EDID DATA CHECK SUM. BLOCK(0)
  • Page 11 “wb 00 ff”: End of white balance adjustment (inner pattern disappear) < Connection Diagram for Adjustment White balance > Copyright ©2010 LG Electronics Inc. All rights reserved. - 11 - LGE Internal Use Only Only for training and service purposes...
  • Page 12 Caution : Don’t push The INSTOP KEY after completing the function inspection Caution : Inspection only PAL M Copyright ©2010 LG Electronics Inc. All rights reserved. - 12 - LGE Internal Use Only Only for training and service purposes...

  • Page 13: Adjustment Method

    Threshold Up Low Threshold Down High 70 Threshold Up High < fig.1 : 50HD Power PCB Assy Voltage adjustment > Copyright ©2010 LG Electronics Inc. All rights reserved. - 13 - LGE Internal Use Only Only for training and service purposes...
  • Page 14 WHEN YOU FIND BELOW DESCRIPTION - " Do not remove the memory card from the port! " Select download file (epk file) Copyright ©2010 LG Electronics Inc. All rights reserved. - 14 - LGE Internal Use Only Only for training and service purposes...

  • Page 15: Block Diagram

    BLOCK DIAGRAM Copyright ©2010 LG Electronics Inc. All rights reserved. - 15 - LGE Internal Use Only Only for training and service purposes...

  • Page 16: Exploded View

    X-RADIATION, Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer. - 16 - LGE Internal Use Only Copyright ©2010 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 17 0 9 / 0 4 / 0 2 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2010 LG Electronics Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 18 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR USB HUB THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2010 LG Electronics Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 19 EAX61373301 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. JACK Copyright © 2010 LG Electronics Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 20 EAX61141601 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LVDS/RS232//RGB Copyright © 2010 LG Electronics Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 21 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. HDMI HDMI Copyright © 2010 LG Electronics Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 22 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. AUDIO AMP Copyright © 2010 LG Electronics Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 23 EAX61373301 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. TUNER Copyright © 2010 LG Electronics Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 24 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. POWER S_POWER Copyright © 2010 LG Electronics Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 25 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Main IC Power ER_BLOCK Copyright © 2010 LG Electronics Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 26 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. AV IN_OUT/EXPANDER Copyright © 2010 LG Electronics Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 27 EAX61373301 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. S7/FLASH/NVRAM/GPIO Copyright © 2010 LG Electronics Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 28 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LGIT CAN TUNER AN TUNER Copyright © 2010 LG Electronics Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 30 Great Company Great People Brazil Basic DTV Training manual Brazil Basic DTV Training manual Contents - System Design - Trouble Shooting Guide ATSC  Group  Brazil Team Last updated 2009.11.19...
  • Page 31 1. Power-Up Boot Fail Trouble Shooting (Front-end) (System + Scalar) NANDFlash DDR3 Serial_Flash NANDFlash DDR3 Serial_Flash 256MB 256MB(128*2) 256MB 256MB(128*2) WXGA/XGA CVBS_LIVE LVDS ISDB-T/ SIF1 CVBS_LIVE PAL/NTSC SPDIF SIF_LIVE Demodulator I2S_BCM MN884433 EXT_IN HDMI_D Rear(0) USB2.0 HDMI_C Side(1) (External Input) (Audio Out) (Micom) AV1_LR...
  • Page 32 Reset Design TAS5709 Active Low (AMP) Active Low KIA7029AF Micom (Reset) GPIO Reset GPIO Reset Tuner Active Low Active High (Main Soc) GPIO Reset Demodulator Active Low Customer Oriented R&D Breakthrough...
  • Page 33 S7 Power Sequence Appendix Power Up Sequence Note: Power 3.3V_AVDD_MPLL (AVDD_DMPLL) XTAL 1.26V (VDDC) 3.3V AVDD_DMPLL 3.3V_VDDP (VDDP) Reset (HI Active) 1.5V/1.8V (AVDD_DDR0/1) 1.26V Other Power (AVDD_AU25, 3.3V AVDD_AU33, VDDP AVDD_MEMPLL, AVDD2P5_ADC…etc) 1.5V/1.8V with Other Power Time Customer Oriented R&D Breakthrough...
  • Page 34 S7 Power Sequence Appendix Power Up Timing Requirements Time Description Typ. Unit XTAL stable to Reset falling ― ― Reset pulse width ― ― 1.26V to Reset falling ― ― 3.3VDDP to Reset falling ― ― Customer Oriented R&D Breakthrough...
  • Page 35 S7 Power Sequence # t2 : Reset Pulse Width : 40ms Customer Oriented R&D Breakthrough...
  • Page 36 S7 Power Sequence a) AC On b) DC(Remocon) On 1 :X-tal 1 :X-tal 2 : 3.3V 2 : 3.3V 3 : 1.26V 3 : 1.26V 4 : Reset 4 : Reset # t1 : Reset Pulse Width : 400ms # t1 : Reset Pulse Width : 120ms # t3 : Reset Pulse Width : 400ms # t3 : Reset Pulse Width : 120ms # t4 : Reset Pulse Width : 400ms...
  • Page 37 GP2 I2C MAP CH 6 TGPIO2/I2C_CLK (R3) <TU_SCL> +3.3V_TU TGPIO3/I2C_SDA (T3) <TU_SDA> TUNER TUNER LGIT HN(LGT10) LGIT HN(LGT10) 0xC2(PLL)/0x10(Analog Demod) 0xC2(PLL)/0x10(Analog Demod) CH 2 DDCR_CK/GPIO72 (N22) <I2C-SCL> +3.3V DDCR_DA/GPIO71 (M22) <I2C-SDA> NVRAM HDCP EEPROM NVRAM HDCP EEPROM 0xA0 0xA8 0xA0 0xA8 CH 5 TGPIO0...
  • Page 38 GPIO Structure GPIO Signal Name Direction Description PWM0 Input Chip configuration PWM1 Input Chip configuration DSUB_DET Input D-Sub Auto link check Model_OPT_3 Input Model option 3 Model_OPT_0 Input Model option 0 Model_OPT_1 Input/Output Model option 1 /FE_BOOSTER_CTRL Model_OPT_2 Input/Output Model option 2/RF_SWITCH_CTL TCON2/GSP 5V_DET_HDMI_2 Input...
  • Page 39 GP2 BRAZIL LOW Power Map IC105 58mA IR PART L900 +3.3V_ST DEBUG S/W +5V_ST (ST_BY시) IC500 R508 +3.3V_NEC_ST L501 IC108 (3.3V Reg) 659mA L502 NEC MICOM AP2121/0.3A :$0.048 IC900 IC107 (RS232C DRV) Instant boot Ready MICOM EEPROM 601mA 355mA VCC_1.5V_DDR A-MVREFDQ IC502 L1201...
  • Page 40 Trouble Shooting Guide for LG Service Man Please check system, after power Off/On one time Power-Up Boot Fail Trouble Shooting No OSD Trouble Shooting Digital TV Video Trouble Shooting Analog TV Video Trouble Shooting Component Video Trouble Shooting RGB Video Trouble Shooting...
  • Page 41 1. Power-Up Boot Fail Trouble Shooting (Front-end) (System + Scalar) NANDFlash DDR3 Serial_Flash NANDFlash DDR3 Serial_Flash 256MB 256MB(128*2) 256MB 256MB(128*2) WXGA/XGA CVBS_LIVE LVDS ISDB-T/ SIF1 CVBS_LIVE PAL/NTSC SPDIF SIF_LIVE Demodulator I2S_BCM MN884433 EXT_IN HDMI_D Rear(0) USB2.0 HDMI_C Side(1) (External Input) (Audio Out) (Micom) AV1_LR...
  • Page 42 1. Power-Up Boot Fail Trouble Shooting Check P500 All Voltage Level Check Power connector Replace Power board (17V, 5V, 3.5/5V_ST) Check All Voltage Level Replace one of Bead, IC500 at Bead, RL_ON, IC500 output & Recheck If Q501 Output is normal, Check Voltage Level 3.3V at IC504, Replace of the IC504 R124(Micom)
  • Page 43 2. No OSD Trouble Shooting (Front-end) (System + Scalar) NANDFlash DDR3 Serial_Flash NANDFlash DDR3 Serial_Flash 256MB 256MB(128*2) 256MB 256MB(128*2) WXGA/XGA CVBS_LIVE LVDS ISDB-T/ SIF1 CVBS_LIVE PAL/NTSC SPDIF SIF_LIVE Demodulator I2S_BCM MN884433 EXT_IN HDMI_D Rear(0) USB2.0 HDMI_C Side(1) (External Input) (Audio Out) (Micom) AV1_LR AV2_LR...
  • Page 44 2. No OSD Trouble Shooting Check P500 Check GPIO Path of Micom 5V_ON Check 5V Voltage Level Check Power connector Replace Power board at P500 Check 5V Voltage Level Replace one of L507,501 at L507, L501 & Recheck Replace one of Q501 Check 5V Voltage Level at Q501 &...
  • Page 45 No OSD Trouble Shooting (Module Power Sequence) (5V) d_off d_on DISPEN Normal Display Symbol Description Min. Max. unit Time interval between 90% of Vcc and 10% of Vs 1250 msec when Power On Time interval between 10% of Vs and 90% of Vcc msec when Power Off Time interval between 10% of Vcc and 90% of Vcc...
  • Page 46 Module Control Trouble Shooting “TILT” on Adjust Remocon Check SMPS & cable PDP Module Power is OK? : PDP internal pattern displays? Replace PDP Module PDP Module is OK. Replace Control Check Signal Check SCL,SDA line output Board < Sample Signal > Start Command Address Write...
  • Page 47 3. Digital TV Video Trouble Shooting (Front-end) (System + Scalar) NANDFlash DDR3 Serial_Flash NANDFlash DDR3 Serial_Flash 256MB 256MB(128*2) 256MB 256MB(128*2) WXGA/XGA CVBS_LIVE LVDS ISDB-T/ SIF1 CVBS_LIVE PAL/NTSC SPDIF SIF_LIVE Demodulator I2S_BCM MN884433 EXT_IN HDMI_D Rear(0) USB2.0 HDMI_C Side(1) (External Input) (Audio Out) (Micom) AV1_LR...
  • Page 48 3. Digital TV Video Trouble Shooting Check RF Cable Check Tuner(TU1300) Power Replace one of Bead (5.0V, 3.3V, 1.2V) & Recheck Check IF Signal pin #17, 18 Maybe Tuner has problems Check Demodulator Power Replace L609 / IC600 (3.3V, 1.2V) L609, IC600 Check Demodulator X-TAL Replace X-TAL (X602)
  • Page 49 4. Analog TV Video Trouble Shooting (Front-end) (System + Scalar) NANDFlash DDR3 Serial_Flash NANDFlash DDR3 Serial_Flash 256MB 256MB(128*2) 256MB 256MB(128*2) WXGA/XGA CVBS_LIVE LVDS ISDB-T/ SIF1 CVBS_LIVE PAL/NTSC SPDIF SIF_LIVE Demodulator I2S_BCM MN884433 EXT_IN HDMI_D Rear(0) USB2.0 HDMI_C Side(1) (External Input) (Audio Out) (Micom) AV1_LR...
  • Page 50 4. Analog TV Video Trouble Shooting Check RF Cable Replace one of Check Tuner Power L1301/L1300/L1302 (5.0V, 3.3V, 1.2V) & Recheck Check CVBS Signal Maybe Tuner(TU1300) has problems TU1300 #11 Pin Replace one of Check CVBS Signal R1330/Q1305/R154/C213 R1334 & Recheck Maybe MstarS7(IC100) has problems Customer Oriented R&D...
  • Page 51 5. Component Video Trouble Shooting (Front-end) (System + Scalar) NANDFlash DDR3 Serial_Flash NANDFlash DDR3 Serial_Flash 256MB 256MB(128*2) 256MB 256MB(128*2) WXGA/XGA CVBS_LIVE LVDS ISDB-T/ SIF1 CVBS_LIVE PAL/NTSC SPDIF SIF_LIVE Demodulator I2S_BCM MN884433 EXT_IN HDMI_D Rear(0) USB2.0 HDMI_C Side(1) (External Input) (Audio Out) (Micom) AV1_LR AV2_LR...
  • Page 52 5. Component Video Trouble Shooting Check Signal Format Is it supported signal? Check Component Cable Check Component Jack JK1001 Replace Jack Replace one of Check Component Signal R1020/R1021/R1022 R1020/R1021/R1022 R1005/R1012/R1013 R1005/R1012/R1013 & Recheck Check Component Signal Replace it R175/R173/R177 R180/R182/R184 Maybe Mstar S7(IC100) has problems Customer Oriented R&D...
  • Page 53 6. RGB Video Trouble Shooting (Front-end) (System + Scalar) NANDFlash DDR3 Serial_Flash NANDFlash DDR3 Serial_Flash 256MB 256MB(128*2) 256MB 256MB(128*2) WXGA/XGA CVBS_LIVE LVDS ISDB-T/ SIF1 CVBS_LIVE PAL/NTSC SPDIF SIF_LIVE Demodulator I2S_BCM MN884433 EXT_IN HDMI_D Rear(0) USB2.0 HDMI_C Side(1) (External Input) (Audio Out) (Micom) AV1_LR AV2_LR...
  • Page 54 6. RGB Video Trouble Shooting Check Signal Format Is it supported signal? Check RGB Cable Check RGB Jack P901 Replace Jack Check RGB Signal Replace It & Recheck R907,R908,R909 Replace one of R915/R916 Check Sync Signal & Recheck Replace it or re-burn Check EEPROM (IC901) &...
  • Page 55 7. AV Video Trouble Shooting (Front-end) (System + Scalar) NANDFlash DDR3 Serial_Flash NANDFlash DDR3 Serial_Flash 256MB 256MB(128*2) 256MB 256MB(128*2) WXGA/XGA CVBS_LIVE LVDS ISDB-T/ SIF1 CVBS_LIVE PAL/NTSC SPDIF SIF_LIVE Demodulator I2S_BCM MN884433 EXT_IN HDMI_D Rear(0) USB2.0 HDMI_C Side(1) (External Input) (Audio Out) (Micom) AV1_LR AV2_LR...
  • Page 56 7. AV Video Trouble Shooting Check Signal Format Is it supported signal? Check AV Cable Check Jack JK1001/JK1002 Replace Jack Replace one of Check CVBS Signal C1016/C1018 C1016/C1018 & Recheck Replace one of Check CVBS Signal R187/R188/C226/C227 R187/R188/C226/C227 & Recheck Maybe Mstar S7(IC101) has problems Customer Oriented R&D...
  • Page 57 8. HDMI Video Trouble Shooting (Front-end) (System + Scalar) NANDFlash DDR3 Serial_Flash NANDFlash DDR3 Serial_Flash 256MB 256MB(128*2) 256MB 256MB(128*2) WXGA/XGA CVBS_LIVE LVDS ISDB-T/ SIF1 CVBS_LIVE PAL/NTSC SPDIF SIF_LIVE Demodulator I2S_BCM MN884433 EXT_IN HDMI_D Rear(0) USB2.0 HDMI_C Side(1) (External Input) (Audio Out) (Micom) AV1_LR AV2_LR...
  • Page 58 8. HDMI Video Trouble Shooting Check Signal Format Is it supported signal? Check HDMI Cable Check HDMI Jack Replace Jack JK803, JK804 Check I2C Signal Replace It & Recheck R844/R845 /R858/R859/R848/R849/R862/R863 Maybe Mstar S7(IC101) has problems Customer Oriented R&D Breakthrough...
  • Page 59 9. All Source Audio Trouble Shooting (Front-end) (System + Scalar) NANDFlash DDR3 Serial_Flash NANDFlash DDR3 Serial_Flash 256MB 256MB(128*2) 256MB 256MB(128*2) WXGA/XGA CVBS_LIVE LVDS ISDB-T/ SIF1 CVBS_LIVE PAL/NTSC SPDIF SIF_LIVE Demodulator I2S_S7 MN884433 EXT_IN HDMI_D Rear(0) USB2.0 HDMI_C Side(1) (External Input) (Audio Out) (Micom) AV1_LR...
  • Page 60 9. All Source Audio Trouble Shooting Make sure you can’t hear any audio Replace Speaker Check Speaker Check Connector P703 Replace Connector Replace one of Maybe TAS9709 has problems. Check Signal Capacitor, Register L700, L701 Replace It & Recheck Check IC700 Power 17V, 3.3V Replace It &...
  • Page 61 10. Digital TV Audio Trouble Shooting (Front-end) (System + Scalar) NANDFlash DDR3 Serial_Flash NANDFlash DDR3 Serial_Flash 256MB 256MB(128*2) 256MB 256MB(128*2) WXGA/XGA CVBS_LIVE LVDS ISDB-T/ SIF1 CVBS_LIVE PAL/NTSC SPDIF SIF_LIVE Demodulator I2S_BCM MN884433 EXT_IN HDMI_D Rear(0) USB2.0 HDMI_C Side(1) (External Input) (Audio Out) (Micom) AV1_LR...
  • Page 62 10. Digital TV Audio Trouble Shooting Follow procedure digital TV video Check video output trouble shooting Follow procedure All source audio Maybe Mster S7 internal audio DSP trouble shooting has problems. Replace It Customer Oriented R&D Breakthrough...
  • Page 63 11. Analog TV Audio Trouble Shooting (Front-end) (System + Scalar) NANDFlash DDR3 Serial_Flash NANDFlash DDR3 Serial_Flash 256MB 256MB(128*2) 256MB 256MB(128*2) WXGA/XGA CVBS_LIVE LVDS ISDB-T/ SIF1 CVBS_LIVE PAL/NTSC SPDIF SIF_LIVE Demodulator I2S_BCM MN884433 EXT_IN HDMI_D Rear(0) USB2.0 HDMI_C Side(1) (External Input) (Audio Out) (Micom) AV1_LR...
  • Page 64 11. Analog TV Audio Trouble Shooting Follow procedure analog TV video Check video output trouble shooting Check Tuner Power Replace one of L1300/L1301/L1302 (5.0V, 3.3V, 1.2V) & Recheck Check SIF Signal Maybe Tuner(TU1300) has problems TU1300 #9 Pin Replace one of Check SIF Signal C252/R246/R1332/Q1304/R1325 IC501 &...
  • Page 65 12. Component / RGB / AV Audio Trouble Shooting (Front-end) (System + Scalar) NANDFlash DDR3 Serial_Flash NANDFlash DDR3 Serial_Flash 256MB 256MB(128*2) 256MB 256MB(128*2) WXGA/XGA CVBS_LIVE LVDS ISDB-T/ SIF1 CVBS_LIVE PAL/NTSC SPDIF SIF_LIVE Demodulator I2S_BCM MN884433 EXT_IN HDMI_D Rear(0) USB2.0 HDMI_C Side(1) (External Input) (Audio Out)
  • Page 66 12. Component / RGB / AV Audio Trouble Shooting Follow procedure external input Check Video Output video trouble shooting Check Jack JK1001/JK1002/P900 Replace Jack Check Signal Replace one of C206/C207/C208/C209/C210/C211 C206/C207/C208/C209/C210/C211 C212/C220/C221/C222/C223/C224 C212/C220/C221/C222/C223/C224 C225/C205/R166/R167/R168/R169 C225/C205/R166/R167/R168/R169 R170/R171/R127/C215/C216/C203 R170/R171/R127/C215/C216/C203 C217/C218/C219/C204/R187/R188 C217/C218/C219/C204/R187/R188 C226/C227 C226/C227 &...
  • Page 67 13. HDMI Audio Trouble Shooting (Front-end) (System + Scalar) NANDFlash DDR3 Serial_Flash NANDFlash DDR3 Serial_Flash 256MB 256MB(128*2) 256MB 256MB(128*2) WXGA/XGA CVBS_LIVE LVDS ISDB-T/ SIF1 CVBS_LIVE PAL/NTSC SPDIF SIF_LIVE Demodulator I2S_BCM MN884433 EXT_IN HDMI_D Rear(0) USB2.0 HDMI_C Side(1) (External Input) (Audio Out) (Micom) AV1_LR AV2_LR...
  • Page 68 13. HDMI Audio Trouble Shooting Follow procedure HDMI video Check video output trouble shooting Re-download EDID data Replace IC802, IC804 Follow procedure All source audio Maybe Mstar S7 audio block has trouble shooting problems. Replace it Customer Oriented R&D Breakthrough...
  • Page 69 14. USB Trouble Shooting (Front-end) (System + Scalar) NANDFlash DDR3 Serial_Flash NANDFlash DDR3 Serial_Flash 256MB 256MB(128*2) 256MB 256MB(128*2) WXGA/XGA CVBS_LIVE LVDS ISDB-T/ SIF1 CVBS_LIVE PAL/NTSC SPDIF SIF_LIVE Demodulator I2S_BCM MN884433 EXT_IN HDMI_D Rear(0) USB2.0 HDMI_C Side(1) (External Input) (Audio Out) (Micom) AV1_LR AV2_LR...
  • Page 70 14. USB Trouble Shooting Check USB 2.0 Cable Check USB device If device is 2.5 inch HDD, Check power adaptor Check P1102 (250/350 tool) Replace Jack P1100 (230 tool) Check 5V voltage level Replace one of IC1101 #2 (250/350 tool) IC1101,L1100 &...

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