LG 50PJ350 Service Manual Download

Page: 1 / 70

PLASMA TV

SERVICE MANUAL

CAUTION

BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

CHASSIS : PB02A

MODEL : 50PJ350

50PJ350-SA

North/Latin America

http://aic.lgservice.com

Europe/Africa

http://eic.lgservice.com

Asia/Oceania

http://biz.lgservice.com

Internal Use Only

Printed in Korea

P/NO : MFL63140202(1004-REV00)

Summary of Contents for 50PJ350

Page 1: ...S READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS PB02A MODEL 50PJ350 50PJ350 SA North Latin America http aic lgservice com Europe Africa http eic lgservice com Asia Oceania http biz lgservice com Internal Use Only Printed in Korea P NO MFL63140202 1004 REV00 ...

Page 2: ...nly Copyright 2010 LG Electronics Inc All rights reserved Only for training and service purposes CONTENTS CONTENTS 2 SAFETY PRECAUTIONS 3 SPECIFICATION 4 ADJUSTMENT INSTRUCTION 8 BLOCK DIAGRAM 15 EXPLODED VIEW 16 SVC SHEET ...

Page 3: ...t s Neck Leakage Current Cold Check Antenna Cold Check With the instrument AC plug removed from AC source connect an electrical jumper across the two AC plug prongs Place the AC switch in the on position connect one lead of ohm meter to the AC plug prongs tied together and touch other ohm meter lead in turn to each exposed metallic parts such as antenna terminals phone jacks etc If the exposed met...

Page 4: ... 5 C 2 Relative Humidity 65 10 3 Power Voltage Standard input voltage 100 V 240 V 50 60 Hz Standard Voltage of each product is marked by models 4 Specification and performance of each parts are followed each drawing and specification by part number in accordance with BOM 5 The receiver must be operated for about 5 minutes prior to the adjustment 3 Test Method 1 Performance LGE TV test method follo...

Page 5: ... VHF high UHF 4 CATV 02 135 3 Input Voltage 1 AC 100 240V 50 60Hz 4 Market BRAZIL 5 Screen Size 127 cm 50 inch Wide 1365 X 768 50PJ350 SA 50PJ250 SA 106 cm 42 inch Wide 1024 X 768 42PJ350 SA 42PJ250 SA 42PJ230 SB 6 Aspect Ratio 16 9 7 Tuning System FS 8 Module PDP50T1 1365 X 768 50PJ350 SA 50PJ250 SA PDP42T1 1024 X 768 42PJ350 SA 42PJ250 SA 42PJ230 SB 9 Operating Environment 1 Temp 0 deg 40 deg 2 ...

Page 6: ...62 VESA UXGA 0 10 1920 1080 67 5 60 148 5 HDTV 1080P 0 6 RGB Input PC No Resolution H freq kHz V freq Hz Pixel clock MHz Proposed 1 720 480 15 73 60 13 5135 SDTV DVD 480I 2 720 480 15 73 59 94 13 5 SDTV DVD 480I 3 720 480 31 50 60 27 027 SDTV 480P 4 720 480 31 47 59 94 27 0 SDTV 480P 5 1280 720 45 00 60 00 74 25 HDTV 720P 6 1280 720 44 96 59 94 74 176 HDTV 720P 7 1920 1080 33 75 60 00 74 25 HDTV 1...

Page 7: ... VESA WXGA 0 8 1280 1024 63 981 60 020 108 00 VESA SXGA 0 9 1600 1200 75 00 60 00 162 VESA UXGA 0 10 1920 1080 67 5 60 148 5 HDTV 1080P 0 DTV 1 720 480 31 50 60 27 027 SDTV 480P 2 720 480 31 47 59 94 27 00 SDTV 480P 3 1280 720 45 00 60 00 74 25 HDTV 720P 4 1280 720 44 96 59 94 74 176 HDTV 720P 5 1920 1080 33 75 60 00 74 25 HDTV 1080I 6 1920 1080 33 72 59 94 74 176 HDTV 1080I 7 1920 1080 67 50 60 1...

Page 8: ...nerator Notice if you maintain one picture over 20 minutes Especially sharp distinction black with white pattern 13Ch or Cross hatch pattern 09Ch then it can appear image stick near black level 3 Adjustment items 3 1 PCB Assembly adjustment 1 Adjust 480i Comp1 2 Adjust 1080p Comp1 RGB If it is necessary it can adjustment at Manufacture Line You can see set adjustment status at 9 ADJUST CHECK of th...

Page 9: ...reen to NORMAL O After get each the signal wait more a second and enter the IN START with press IN START key of Service remocon After then select 7 External ADC with navigator button and press Enter O After Then Press key of Service remocon Right Arrow VOL O You can see ADC Component1 Success O Component1 1080p RGB 1080p Adjust is same method O Component 1080p Adjustment in Component1 input mode O...

Page 10: ... Set instruments and Jig Like pic 5 then turn on PC and Jig Operate DDC write S W EDID write read It will operate in the DOS mode EDID data Model name LG TV 2010 EDID DATA CHECK SUM 10 LGE Internal Use Only Copyright 2010 LG Electronics Inc All rights reserved Only for training and service purposes BLOCK 0 BLOCK 1 HD HDMI1 3B 2C HDMI2 3B 1C HDMI3 3B 0C RGB A3 25 FHD HDMI1 3B 2C HDMI2 3B 1C HDMI3 3...

Page 11: ... you press ADJ button of service remocon and enter Ez Adjust Menu 7 White Balance then automatically inner pattern operates In case of Inner originally Test Pattern On will be selected in The Test Pattern On Off O Connect all cables and equipments like Pic 5 O Set Baud Rate of RS 232C to 115200 It may set 115200 orignally O Connect RS 232C cable to set O Connect HDMI cable to set V RS 232C COMMAND...

Page 12: ...t mode Then with ADJ button exit from adjustment mode Attachment White Balance adjustment coordination and color temperature O Using CS 1000 Equipment COOL T 11000K _uv 0 000 x 0 276 y 0 283 MEDIUM T 9300K _uv 0 000 x 0 285 y 0 293 WARM T 6500K _uv 0 000 x 0 313 y 0 329 O Using CA 210 Equipment 10 CH Contras value 216 Gray Brighness spec 6 Test of RS 232C control Press In Start button of Service R...

Page 13: ...ig 1 1 Connect terminal of D M M to Vs pin of P812 42 P811 connect terminal to GND pin of P812 42 P811 2 After turning VR901 voltage of D M M adjustment as same as Vs voltage which on label of panel left top deviation 0 5V 2 Va adjustment refer fig 1 1 After receiving 100 Full White Pattern HEAT RUN 2 Connect terminal of D M M to Va pin of P812 42 P811 connect terminal to GND pin of P811 42 P812 3...

Page 14: ...e V After download is finished remove the USB stick V Press IN START key of ADJ remote control check the S W version CAUTION DO NOT REMOVE USB MEMORY CARD FROM USB PORT WHEN YOU FIND BELOW DESCRIPTION Do not remove the memory card from the port 14 LGE Internal Use Only Copyright 2010 LG Electronics Inc All rights reserved Only for training and service purposes ...

Page 16: ...electrical and mechanical parts in this chassis have special safety related characteristics These parts are identified by in the Schematic Diagram and EXPLODED VIEW It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent X RADIATION Shock Fire or other Hazards Do not modify the original design without permission of manufa...

Page 17: ...MA0 B TMA1 B MA3 B TMA5 A TMA9 A MDQSLB A MDQL3 B MCKB 0 1 u F C1221 B TMDQSU 0 1 u F C1242 A MA8 10 R1219 A MA9 B TMDQL2 B TMDQSL B TMA3 A TMDQU1 B TMDQL0 B TMDQL1 10 R1216 10 AR1216 A TMA8 B MA3 A TMCKE A TMDQU0 B MCKE 10K R1234 10K R1233 A MCKE H5TQ1G63BFR H9C IC1201 A0 N3 A1 P7 A2 P3 A3 N2 A4 P8 A5 P2 A6 R8 A7 R2 A8 T8 A9 R3 A10 AP L7 A11 R7 A12 BC N7 A13 T3 A15 M7 BA0 M2 BA1 N8 BA2 M3 CK J7 C...

Page 18: ...S3C05HDMI1 5 6V READY D1101 USB2_DM_to_MAIN 0 1uF 16V C1120 250_350 USB1_DM_to_MAIN USB1_OCD 3 3V 3 3V KJA UB 0 0037 JK1100 PJ230 1 2 3 4 5 MLB 201209 0120P N2 0LCML00003B L1100 M A E R T S N W O D B S U 4 0 0 0 4 B U A J K 2 0 1 1 P 250_350 1 2 3 4 5 P_ 5V 10uF 16V C1122 250_350 AP2191SG 13 IC1101 250_350 3 IN_2 2 IN_1 4 EN 1 GND 5 FLG 6 OUT_1 7 OUT_2 8 NC 100uF 16V C1116 250_350 22 R1124 250_350...

Page 19: ...G IC1000 3 GND 2 B 4 Y 1 A 5 VCC SPDIF_OUT 100 R1051 READY 0 1uF 50V C1023 100 R1055 10uF 16V C1024 SIDE_RIN 10K R1039 75 R1044 K 0 7 4 8 3 0 1 R 12K R1043 10K R1036 10K R1040 12K R1042 D1019 D1021 SIDE_LIN 0 1uF 16V C1013 READY 47pF 50V C1016 SIDE_CVBS_IN K 0 7 4 7 3 0 1 R 30V D1022 1K R1019 SIDE_CVBS_DET 30V D1020 820pF C1015 820pF C1014 PPJ235 01 JK1002 250_350 4A YL O SPRING 5A YL E LUG 3A YL ...

Page 20: ...905 DSUB_R 220pF 50V C903 READY 5 6V D910 D906 3 3V_AVDD DSUB_VSYNC 100 R904 0 1uF 50V C907 18pF 50V C919 L902 L904 820pF 50V C921 820pF 50V C920 4 7K R910 MLB 201209 0120P N2 L907 MLB 201209 0120P N2 L901 MLB 201209 0120P N2 L900 MLB 201209 0120P N2 L906 MLB 201209 0120P N2 L903 100K READY R920 2SC3052 READY Q900 E B C 100K READY R919 W 0 1 1 10K 5 READY R918 IR RXB4 RXB1 RXBCK RXB2 RXB4 RXB1 RXB...

Page 21: ...1A1R1NT READY D808 D1 _HDMI3 D1 _HDMI4 HPD3 2SC3875S ALY Q807 E B C 18K R867 5V_HDMI_4 DDC_SDA_3 AVRL161A1R1NT READY D807 AVRL161A1R1NT READY D806 5V GND 10K R833 READY 5V_HDMI_2 18K R831 READY HPD2 DDC_SDA_2 D1 _HDMI2 AT24C02BN 10SU 1 8 IC801 READY 3 A2 2 A1 4 GND 1 A0 5 SDA 6 SCL 7 WP 8 VCC D0 _HDMI2 22 R830 READY CK _HDMI2 18K R834 READY CK _HDMI2 1K R823 READY 18K R832 READY 0 1uF 16V C803 REA...

Page 22: ...2 0 033uF 50V C719 0 R705 AMP_SCL 2 Q20 33pF READY C707 0 01uF C704 AVSS 3 3V_AU_AVDD 33pF READY C706 22pF READY C745 2K R728 MS_LRCK 2 Q20 470 R712 3 3V_AU_AVDD 0 033uF 50V C730 P_17V 2K R744 AMP_RESET_N 1 T8 0 01uF C711 AVSS 120 ohm L703 P_17V 0 01uF C720 0 1uF C703 18K 1 R711 0 01uF C725 0 01uF C726 3 3V_DVDD 0 01uF C721 22K R714 0 1uF C715 1000pF 50V READY C700 0 0 4 7 u F C713 2K READY R706 3...

Page 23: ... 0 1uF 16V C672 0 1uF C682 2 2K R640 22 R631 0 1uF C668 3 3V_DE FE_TS_VLD 1 2V_DE 0 1uF 16V C670 0 1uF 16V C671 SDA1 SCL1 1uF C688 1uF C687 10uF 6 3V C697 30pF 50V C676 30pF 50V C675 MN884433 IC602 1 VSS_1 2 AVDD_S 3 AII_S 4 AIQ_S 5 AVSS_S 6 VRT_S 7 VRB_S 8 TCPO_S 9 VDDL_1 10 MSCL_S 11 MSDA_S 12 VSS_2 13 VSSH 14 PSEL 15 ZSEL 16 VDDL_2 17 ACKI 18 TCPO_T 19 IR_T 20 VRT_T 21 VRB_T 22 AVDD_T 23 AIN_T ...

Page 24: ...19 MP8706EN C247 LF Z IC501 3 SW_2 2 SW_1 4 BST 1 IN 5 EN SYNC 6 FB 7 VCC 8 GND 1uF 25V C520 1 2K R518 0 1uF C528 0 1uF C523 0 R527 39K R516 100uF 16V C527 100uF 16V C585 4 7uF 10V C565 0 R501 1 10W 10 1 R503 22uF 10V C535 1K R500 100pF 50V C536 1 10W 11K 5 R505 CIC21J501NE L503 0 1uF 50V C537 1uF 10V C538 10K 1 R509 0 1uF C539 NR8040T3R6N 3 6uH L504 22uF 10V C540 MP2212DN IC502 3 IN 2 GND 4 BS 1 ...

Page 25: ...K19 VDDC_12 L19 VDDC_13 M18 VDDC_14 M19 VDDC_15 N18 VDDC_16 N19 VDDC_17 N20 VDDC_18 P18 VDDC_19 P19 VDDC_20 P20 NC_13 Y12 AVDD1P2 J11 DVDD_NODIE L7 AVDD2P5_ADC_1 H7 AVDD2P5_ADC_2 J7 AVDD25_REF J8 AVDD_AU25 L8 PVDD_1 W15 PVDD_2 Y15 AVDD25_PGA U8 AVDD_NODIE M8 AVDD_DVI_1 N9 AVDD_DVI_2 P9 AVDD3P3_CVBS N8 AVDD_DMPLL P8 AVDD_AU33 T7 AVDD_EAR33 U7 AVDD33_T T9 VDDP_1 R8 VDDP_2 R9 VDDP_3 T8 NC_5 V20 NC_8 ...

Page 26: ...IN0M K2 BIN0P J3 BIN0M J2 SOGIN0 J1 HSYNC1 G4 VSYNC1 H6 RIN1P K5 RIN1M K4 GIN1P J4 GIN1M K6 BIN1P H4 BIN1M J6 SOGIN1 J5 HSYNC2 H5 RIN2P N3 RIN2M N2 GIN2P M2 GIN2M M1 BIN2P L2 BIN2M L1 SOGIN2 M3 CVBS0P N4 CVBS1P N6 CVBS2P L4 CVBS3P L5 CVBS4P L6 CVBS5P M4 CVBS6P M5 CVBS7P K7 CVBS_OUT1 M6 CVBS_OUT2 M7 VCOM0 N5 VIFP W2 VIFM W1 IP V2 IM V1 SSIF SIFP Y2 SSIF SIFM Y1 QP U3 QM V3 IFAGC Y5 RF_TAGC Y4 TGPIO...

Page 27: ...24 RLV3P RED 7 AD23 RLV3N RED 6 AE23 RLV0P LVSYNC AE26 RLV0N LHSYNC AE25 RLV1N LCK AF26 RLV2P RED 9 AF25 RLV1P LDE AE24 RLV2N RED 8 AF24 RLV4P RED 5 AF23 RLV4N RED 4 AD22 RLV5P RED 3 AE22 RLV5N RED 2 AF22 TCON3 OE GOE GCLK2 AD19 TCON15 SCAN_BLK1 AE19 TCON18 CS7 GCLK5 AD21 TCON19 CS8 GCLK6 AE21 TCON11 CS5 HCON AF21 TCON10 CS4 OPT_N AD20 TCON9 CS3 OPT_P AE20 TCON16 WPWM AF20 TCON12 DPM AF19 TCON1 ST...

Page 28: ...uF 25V C1311 47pF 50V C1313 ISA1530AC1 Q1306 E B C 100 R1309 0 R1324 READY TUNER_SIF ISA1530AC1 Q1305 E B C 10K R1343 3K R1320 1K R1322 2 2K R1321 4 7K R1325 TUNER_IF_P TUNER_IF_N L1302 0 1uF C1300 22uF 16V C1301 5V_TU 1200pF 50V C1309 1200pF 50V C1305 1200pF 50V C1314 3 3V 0 1uF C1306 L1301 L1300 0 1uF C1303 3 3V 3 3V 4 7uF 10V C1304 4 7uF 10V C1307 4 7uF 10V C1308 TDTR T035F TU1300 14 B3 3 3V 13...

Page 29: ......

Page 30: ...ATSC Group Brazil Team Great Company Great People Last updated 2009 11 19 Brazil Basic DTV Training manual Brazil Basic DTV Training manual Contents System Design Trouble Shooting Guide ...

Page 31: ...COMP2_LR RGB_LR EXT_IN AV2 AV2_LR NANDFlash 256MB NANDFlash 256MB Audio Out USB2 0 SPDIF SIF_LIVE I2S_BCM Comp1 2 RGB HDMI_Rear D port HDMI_Side C port SIDE HDMI_PORT UI_HW_PORT1 HDMI_C Demodulator MN884433 TP1 Serial_Flash 1MB Serial_Flash 1MB USB Rear USB SVC only PJ230 Side USB 1 Power Up Boot Fail Trouble Shooting Reset HDMI CEC Stand by IR I2C KIA7427AF KIA7427AF 24C16 24C16 Local Local KEY K...

Page 32: ...Customer Oriented R D Breakthrough Reset Design Active Low Micom TAS5709 AMP Demodulator KIA7029AF Reset GPIO Reset Active Low S7 Main Soc GPIO Reset Active High Tuner GPIO Reset Active Low Active Low ...

Page 33: ...x Power Up Sequence Time Power XTAL 3 3V AVDD_DMPLL Reset HI Active 1 5V 1 8V with Other Power 1 26V t1 t3 3 3V VDDP t4 t2 Note 3 3V_AVDD_MPLL AVDD_DMPLL 1 26V VDDC 3 3V_VDDP VDDP 1 5V 1 8V AVDD_DDR0 1 Other Power AVDD_AU25 AVDD_AU33 AVDD_MEMPLL AVDD2P5_ADC etc ...

Page 34: ...akthrough S7 Power Sequence Appendix Time Description Min Typ Max Unit t1 XTAL stable to Reset falling 5 ms t2 Reset pulse width 5 ms t3 1 26V to Reset falling 5 ms t4 3 3VDDP to Reset falling 5 ms Power Up Timing Requirements ...

Page 35: ...Customer Oriented R D Breakthrough S7 Power Sequence t2 Reset Pulse Width 40ms Æ OK ...

Page 36: ...al 2 3 3V 3 1 26V 4 Reset S7 Power Sequence 1 X tal 2 3 3V 3 1 26V 4 Reset t1 Reset Pulse Width 400ms Æ OK t3 Reset Pulse Width 400ms Æ OK t4 Reset Pulse Width 400ms Æ OK t1 Reset Pulse Width 120ms Æ OK t3 Reset Pulse Width 120ms Æ OK t4 Reset Pulse Width 120ms Æ OK ...

Page 37: ...84433 0xD8 CH 2 PDP MODULE 0x1C PDP MODULE 0x1C CH 5 MICOM UPD78F0513 0x52 MICOM UPD78F0513 0x52 DDCDA_DA GPIO24 DDCDB_CK GPIO25 DDCDB_DA GPIO26 EEPROM HDMI1 0XA0 EEPROM HDMI1 0XA0 DDCDD_CK GPIO29 B4 C4 DDC_SCL3 DDC_SDA3 5V_HDMI_1 5 0V DDCDD_DA GPIO30 CH 12 EEPROM HDMI1 0XA0 EEPROM HDMI1 0XA0 DDCDC_CK GPIO27 AA4 AB4 DDC_SCL4 DDC_SDA4 5V_HDMI_Side 5 0V DDCDC_DA GPIO28 CH 11 EEPROM M24C16 0x EEPROM ...

Page 38: ...utput MOD_ROM_TX 51 Compnent1 Auto link Input COMP1_DET 40 HDMI_1 5V Detect Input 5V_DET_HDMI_3 TCON6 FLK HDMI Side 5V Detect Input 5V_DET_HDMI_4 TCON4 CPV GSC_R G CLK3 HDMI3 Ready HDMI 5V Detect Input 5V_DET_HDMI_2 TCON2 GSP _R GCLK1 Model option 2 RF_SWITCH_CTL Input Output Model_OPT_2 14 Model option 1 FE_BOOSTER_CTRL Input Output Model_OPT_1 11 Model option 0 Input Model_OPT_0 42 Model option ...

Page 39: ...5709 IC102 9 EEPROM IC103 Serial Flash IC104 NAND Flash 3 3V IC505 REG 2 5V_AVDD L303 AVDD2P5_2 5 L304 L305 L306 AVDD25_PGA_2 5 AU25_2 5 ADC2P5_2 5 L102 L609 3 3V_DE IC602 MN884433 IC600 REG 1 2V_DE L1301 L321 1 26V_MIU1VDDC L324 1 26V_MIU0VDDC L323 VDDC TU1300 TUNER 7V P_17V 5V_TU IC507 DCDC IC506 LDO TUNER 5V TU700 TAS5709 P_17V Multi Power 19mA 5V_ST 58mA ST_BY시 Instant boot Ready 659mA 601mA 3...

Page 40: ...le Shooting 6 RGB Video Trouble Shooting 7 AV Video Trouble Shooting 8 HDMI Video Trouble Shooting 9 All Source Audio Trouble Shooting 10 Digital TV Audio Trouble Shooting 11 Analog TV Audio Trouble Shooting 12 Component RGB AV Audio Trouble Shooting 13 HDMI Audio Trouble Shooting 14 USB Trouble Shooting Trouble Shooting Guide for LG Service Man Please check system after power Off On one time ...

Page 41: ...COMP2_LR RGB_LR EXT_IN AV2 AV2_LR NANDFlash 256MB NANDFlash 256MB Audio Out USB2 0 SPDIF SIF_LIVE I2S_BCM Comp1 2 RGB HDMI_Rear D port HDMI_Side C port SIDE HDMI_PORT UI_HW_PORT1 HDMI_C Demodulator MN884433 TP1 Serial_Flash 1MB Serial_Flash 1MB USB Rear USB SVC only PJ230 Side USB 1 Power Up Boot Fail Trouble Shooting Reset HDMI CEC Stand by IR I2C KIA7427AF KIA7427AF 24C16 24C16 Local Local KEY K...

Page 42: ... IC501 Recheck N Y Check Voltage Level 1 5V at IC502 7 pin N Check R500 voltage level ON OFF Control Replace one of IC502 Recheck N Y Check Voltage Level 2 5V at C589 N Replace one of IC505 and application circuit Recheck N Y Check X200 Clock24MHz N Replace X200 Y Check signal transition at IC103 N Maybe Serial Flash Memory problem Check signal transition IC104 Y Check All Voltage Level at Bead RL...

Page 43: ...P1_LR COMP2_LR RGB_LR EXT_IN AV2 AV2_LR NANDFlash 256MB NANDFlash 256MB Audio Out USB2 0 SPDIF SIF_LIVE I2S_BCM Comp1 2 RGB HDMI_Rear D port HDMI_Side C port SIDE HDMI_PORT UI_HW_PORT1 HDMI_C Demodulator MN884433 TP1 Serial_Flash 1MB Serial_Flash 1MB USB Rear USB SVC only PJ230 Side USB Reset HDMI CEC Stand by IR I2C KIA7427AF KIA7427AF 24C16 24C16 Local Local KEY KEY NEC NEC Micom Micom Micom Rea...

Page 44: ...Check P903 TXAC TXAC TXBC TXBC Display Enable N Y Check LVDS Cable N Replace Cable Y Check PDP Module Check 5V Voltage Level at L507 L501 N Replace one of L507 501 Recheck Y Maybe S7 IC101 has troubles It should satisfy the Pixel Clock on CAS Electrical Specifications Power Supply Sequence Input Signal Timing Specification Control Signal Register Check CAS Check P500 5V_ON Check GPIO Path of Micom...

Page 45: ...1500 Time interval between DISPEN falling edge and 90 of Vs when Power Off Td_off Recommended 2sec msec 300 10 Rising Time of Va 10 to 90 TVaR msec 400 100 Rising Time of Vs 10 to 90 TVsR msec 500 50 Falling Time of Va 90 to 10 TVaF msec 20 Time interval between 10 of Vs and 90 of Vcc when Power Off TOff msec 1250 750 Time interval between 90 of Vcc and 10 of Vs when Power On TOn unit Max Min Desc...

Page 46: ... N Y SCL continue SDA continue ACK By Slave 9 1 D0 D7 9 ACK By Slave Command Data for Addr Stop By Master D6 SCL 8 SDA 0 0 1 1 1 A7 W Start By Master Chip ID Address Byte 0x1C ACK By Slave 0 1 9 1 A6 A1 A0 Command Address Addr A 7 0 0 Write only Master Image Board Slave PDP Module Sample Signal SCL SDA ACK signal Check Low OK High Error Replace Control Board N Check SMPS cable N Y Replace PDP Modu...

Page 47: ... COMP2_LR RGB_LR EXT_IN AV2 AV2_LR NANDFlash 256MB NANDFlash 256MB Audio Out USB2 0 SPDIF SIF_LIVE I2S_BCM Comp1 2 RGB HDMI_Rear D port HDMI_Side C port SIDE HDMI_PORT UI_HW_PORT1 HDMI_C Demodulator MN884433 TP1 Serial_Flash 1MB Serial_Flash 1MB USB Rear USB SVC only PJ230 Side USB Reset HDMI CEC Stand by IR I2C KIA7427AF KIA7427AF 24C16 24C16 Local Local KEY KEY NEC NEC Micom Micom Micom Rear 0 S...

Page 48: ...R631 R632 N Maybe Demodulator has problems Y Maybe MstarS7 IC100 has problems Check Tuner TU1300 Power 5 0V 3 3V 1 2V N Replace one of Bead Recheck Y Check IF Signal pin 17 18 N Maybe Tuner has problems Y Check Demodulator Power 3 3V 1 2V L609 IC600 N Replace L609 IC600 Y Check Demodulator X TAL X602 N Replace X TAL Y ...

Page 49: ... COMP2_LR RGB_LR EXT_IN AV2 AV2_LR NANDFlash 256MB NANDFlash 256MB Audio Out USB2 0 SPDIF SIF_LIVE I2S_BCM Comp1 2 RGB HDMI_Rear D port HDMI_Side C port SIDE HDMI_PORT UI_HW_PORT1 HDMI_C Demodulator MN884433 TP1 Serial_Flash 1MB Serial_Flash 1MB USB Rear USB SVC only PJ230 Side USB Reset HDMI CEC Stand by IR I2C KIA7427AF KIA7427AF 24C16 24C16 Local Local KEY KEY NEC NEC Micom Micom Micom Rear 0 S...

Page 50: ...g Check RF Cable Y Check CVBS Signal TU1300 11 Pin N Y Check CVBS Signal R1334 N Replace one of R1330 Q1305 R154 C213 Recheck Y N Y Check Tuner Power 5 0V 3 3V 1 2V Replace one of L1301 L1300 L1302 Recheck Maybe Tuner TU1300 has problems Maybe MstarS7 IC100 has problems ...

Page 51: ... COMP2_LR RGB_LR EXT_IN AV2 AV2_LR NANDFlash 256MB NANDFlash 256MB Audio Out USB2 0 SPDIF SIF_LIVE I2S_BCM Comp1 2 RGB HDMI_Rear D port HDMI_Side C port SIDE HDMI_PORT UI_HW_PORT1 HDMI_C Demodulator MN884433 TP1 Serial_Flash 1MB Serial_Flash 1MB USB Rear USB SVC only PJ230 Side USB Reset HDMI CEC Stand by IR I2C KIA7427AF KIA7427AF 24C16 24C16 Local Local KEY KEY NEC NEC Micom Micom Micom Rear 0 S...

Page 52: ...ed signal Y Check Component Jack JK1001 N Y Check Component Signal R1020 R1021 R1022 R1005 R1012 R1013 N Replace one of R1020 R1021 R1022 R1005 R1012 R1013 Recheck Y Check Component Signal R175 R173 R177 R180 R182 R184 N Replace it Y Y Check Component Cable Replace Jack Maybe Mstar S7 IC100 has problems ...

Page 53: ..._LR COMP2_LR RGB_LR EXT_IN AV2 AV2_LR NANDFlash 256MB NANDFlash 256MB Audio Out USB2 0 SPDIF SIF_LIVE I2S_BCM Comp1 2 RGB HDMI_Rear D port HDMI_Side C port SIDE HDMI_PORT UI_HW_PORT1 HDMI_C Demodulator MN884433 TP1 Serial_Flash 1MB Serial_Flash 1MB USB Rear USB SVC only PJ230 Side USB Reset HDMI CEC Stand by IR I2C KIA7427AF KIA7427AF 24C16 24C16 Local Local KEY KEY NEC NEC Micom Micom Micom Rear ...

Page 54: ...rmat Is it supported signal Y Check RGB Jack P901 N Y Y Check RGB Cable Replace Jack Check RGB Signal R907 R908 R909 N Replace It Recheck Y Check Sync Signal N Replace one of R915 R916 Recheck Y Check EEPROM IC901 N Replace it or re burn Recheck Y Maybe Mstar S7 IC101 has problems ...

Page 55: ...1_LR COMP2_LR RGB_LR EXT_IN AV2 AV2_LR NANDFlash 256MB NANDFlash 256MB Audio Out USB2 0 SPDIF SIF_LIVE I2S_BCM Comp1 2 RGB HDMI_Rear D port HDMI_Side C port SIDE HDMI_PORT UI_HW_PORT1 HDMI_C Demodulator MN884433 TP1 Serial_Flash 1MB Serial_Flash 1MB USB Rear USB SVC only PJ230 Side USB Reset HDMI CEC Stand by IR I2C KIA7427AF KIA7427AF 24C16 24C16 Local Local KEY KEY NEC NEC Micom Micom Micom Rear...

Page 56: ...JK1001 JK1002 N Y Check CVBS Signal C1016 C1018 N Y Check CVBS Signal R187 R188 C226 C227 N Replace one of R187 R188 C226 C227 Recheck Y Y Replace Jack Maybe Mstar S7 IC101 has problems Check Signal Format Is it supported signal Check AV Cable Replace one of C1016 C1018 Recheck ...

Page 57: ..._LR COMP2_LR RGB_LR EXT_IN AV2 AV2_LR NANDFlash 256MB NANDFlash 256MB Audio Out USB2 0 SPDIF SIF_LIVE I2S_BCM Comp1 2 RGB HDMI_Rear D port HDMI_Side C port SIDE HDMI_PORT UI_HW_PORT1 HDMI_C Demodulator MN884433 TP1 Serial_Flash 1MB Serial_Flash 1MB USB Rear USB SVC only PJ230 Side USB Reset HDMI CEC Stand by IR I2C KIA7427AF KIA7427AF 24C16 24C16 Local Local KEY KEY NEC NEC Micom Micom Micom Rear ...

Page 58: ...ideo Trouble Shooting Check Signal Format Is it supported signal Y Check HDMI Jack JK803 JK804 N Y Y Check HDMI Cable Replace Jack Check I2C Signal R844 R845 R858 R859 R848 R849 R862 R863 N Replace It Recheck Y Maybe Mstar S7 IC101 has problems ...

Page 59: ... COMP2_LR RGB_LR EXT_IN AV2 AV2_LR NANDFlash 256MB NANDFlash 256MB Audio Out USB2 0 SPDIF SIF_LIVE I2S_S7 Comp1 2 RGB HDMI_Rear D port HDMI_Side C port SIDE HDMI_PORT UI_HW_PORT1 HDMI_C Demodulator MN884433 TP1 Serial_Flash 1MB Serial_Flash 1MB USB Rear USB SVC only PJ230 Side USB Reset HDMI CEC Stand by IR I2C KIA7427AF KIA7427AF 24C16 24C16 Local Local KEY KEY NEC NEC Micom Micom Micom Rear 0 Si...

Page 60: ...703 N Y Y Check Speaker Replace Connector Check Signal L700 L701 N Replace one of Capacitor Register Recheck Y Check IC700 Power 17V 3 3V L702 L703 N Replace It Recheck Y Check Mstar S7 I2S Output R724 R725 R726 N Replace It Recheck Y Maybe Mstar S7 IC101 has problems Replace Speaker N N Maybe TAS9709 has problems Replace It ...

Page 61: ...COMP2_LR RGB_LR EXT_IN AV2 AV2_LR NANDFlash 256MB NANDFlash 256MB Audio Out USB2 0 SPDIF SIF_LIVE I2S_BCM Comp1 2 RGB HDMI_Rear D port HDMI_Side C port SIDE HDMI_PORT UI_HW_PORT1 HDMI_C Demodulator MN884433 TP1 Serial_Flash 1MB Serial_Flash 1MB USB Rear USB SVC only PJ230 Side USB Reset HDMI CEC Stand by IR I2C KIA7427AF KIA7427AF 24C16 24C16 Local Local KEY KEY NEC NEC Micom Micom Micom Rear 0 Si...

Page 62: ...through 10 Digital TV Audio Trouble Shooting Check video output Y Follow procedure All source audio trouble shooting Maybe Mster S7 internal audio DSP has problems Replace It N Follow procedure digital TV video trouble shooting N ...

Page 63: ... COMP2_LR RGB_LR EXT_IN AV2 AV2_LR NANDFlash 256MB NANDFlash 256MB Audio Out USB2 0 SPDIF SIF_LIVE I2S_BCM Comp1 2 RGB HDMI_Rear D port HDMI_Side C port SIDE HDMI_PORT UI_HW_PORT1 HDMI_C Demodulator MN884433 TP1 Serial_Flash 1MB Serial_Flash 1MB USB Rear USB SVC only PJ230 Side USB Reset HDMI CEC Stand by IR I2C KIA7427AF KIA7427AF 24C16 24C16 Local Local KEY KEY NEC NEC Micom Micom Micom Rear 0 S...

Page 64: ...nal TU1300 9 Pin N Y N Y Follow procedure All source audio trouble shooting N Maybe Mstar S7 audio block has problems Replace It N Y Check Tuner Power 5 0V 3 3V 1 2V Replace one of L1300 L1301 L1302 Recheck Maybe Tuner TU1300 has problems Replace one of C252 R246 R1332 Q1304 R1325 IC501 Recheck Check SIF Signal SIF waveform sample Defend on the input signal ...

Page 65: ...P2_LR RGB_LR EXT_IN AV2 AV2_LR NANDFlash 256MB NANDFlash 256MB Audio Out USB2 0 SPDIF SIF_LIVE I2S_BCM Comp1 2 RGB HDMI_Rear D port HDMI_Side C port SIDE HDMI_PORT UI_HW_PORT1 HDMI_C Demodulator MN884433 TP1 Serial_Flash 1MB Serial_Flash 1MB USB Rear USB SVC only PJ230 Side USB Reset HDMI CEC Stand by IR I2C KIA7427AF KIA7427AF 24C16 24C16 Local Local KEY KEY NEC NEC Micom Micom Micom Rear 0 Side ...

Page 66: ...C215 C216 C203 C217 C218 C219 C204 R187 R188 C226 C227 N Replace Jack Check Video Output Replace one of C206 C207 C208 C209 C210 C211 C212 C220 C221 C222 C223 C224 C225 C205 R166 R167 R168 R169 R170 R171 R127 C215 C216 C203 C217 C218 C219 C204 R187 R188 C226 C227 Recheck N Follow procedure external input video trouble shooting Y Follow procedure All source audio trouble shooting N Maybe Mstar S7 a...

Page 67: ...LR COMP2_LR RGB_LR EXT_IN AV2 AV2_LR NANDFlash 256MB NANDFlash 256MB Audio Out USB2 0 SPDIF SIF_LIVE I2S_BCM Comp1 2 RGB HDMI_Rear D port HDMI_Side C port SIDE HDMI_PORT UI_HW_PORT1 HDMI_C Demodulator MN884433 TP1 Serial_Flash 1MB Serial_Flash 1MB USB Rear USB SVC only PJ230 Side USB Reset HDMI CEC Stand by IR I2C KIA7427AF KIA7427AF 24C16 24C16 Local Local KEY KEY NEC NEC Micom Micom Micom Rear 0...

Page 68: ...I Audio Trouble Shooting Check video output Y Follow procedure All source audio trouble shooting N Y Re download EDID data Maybe Mstar S7 audio block has problems Replace it N Follow procedure HDMI video trouble shooting N Replace IC802 IC804 ...

Page 69: ...MP1_LR COMP2_LR RGB_LR EXT_IN AV2 AV2_LR NANDFlash 256MB NANDFlash 256MB Audio Out USB2 0 SPDIF SIF_LIVE I2S_BCM Comp1 2 RGB HDMI_Rear D port HDMI_Side C port SIDE HDMI_PORT UI_HW_PORT1 HDMI_C Demodulator MN884433 TP1 Serial_Flash 1MB Serial_Flash 1MB USB Rear USB SVC only PJ230 Side USB Reset HDMI CEC Stand by IR I2C KIA7427AF KIA7427AF 24C16 24C16 Local Local KEY KEY NEC NEC Micom Micom Micom Re...

Page 70: ...the device and try to reboot the TV AC power off on Check USB 2 0 Cable Y Check P1102 250 350 tool P1100 230 tool N Y Y Check USB device If device is 2 5 inch HDD Check power adaptor Replace Jack Check 5V voltage level IC1101 2 250 350 tool L1100 230 tool N Replace one of IC1101 L1100 Recheck Y MaybeMstar S7 IC101 has problems Replace It ...

Search results

Summary of Contents for 50PJ350

Reviews:

Related manuals for 50PJ350

Brands by name

Popular brands

LG 50PJ350, Service Manual

Search results

Summary of Contents for 50PJ350

Reviews:

Related manuals for 50PJ350

Brands by name

Popular brands