LG 50PB560B Service Manual Download Page 47

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LGE Internal Use Only

14. USB Trouble Shooting

•

Exception

- USB power could be disabled by inrushing current

- In this case, remove the device and try to reboot the TV (AC power off/on)

Check USB 2.0 Cable

Check JK209

Check USB device

If device is 2.5 inch HDD,

Check power adaptor

Replace Jack

Check 5V voltage level

Replace IC204 & Recheck

Maybe Mstar IC400

has problems. Replace It.

Summary of Contents for 50PB560B

Page 1: ... eic lgservice com Asia Oceania http biz lgservice com Internal Use Only Printed in Korea P NO MFL68001102 1310 REV00 CHASSIS PU41A MODEL 50PB560B 50PB560B UA CAUTION BEFORE SERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL PLASMA TV SERVICE MANUAL ...

Page 2: ...opyright LG Electronics Inc All rights reserved Only for training and service purposes CONTENTS CONTENTS 2 SAFETY PRECAUTIONS 3 SPECIFICATION 4 ADJUSTMENT INSTRUCTION 5 BLOCK DIAGRAM 12 EXPLODED VIEW 13 SCHEMATIC CIRCUIT DIAGRAM ...

Page 3: ...hout damage of electrical shock 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...

Page 4: ... 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 followed 2 Demanded other specification Safety CE IEC specification EMC CE IEC 4 Model General Specification No Item Specification Remark 1 Receiving System 1 ATSC NTSC M 64 256 QAM 2 Available Channel 1 VHF 02 13 2 UHF 14 69 3 DTV 02 69 4 CATV 01 135 5...

Page 5: ...Adjust 480i Comp Adjust 1080p Comp If it is necessary it can adjustment at Manufacture Line You can see set adjustment status at 9 ADJUST CHECK of the In start menu 3 2 Set Assembly Adjustment EDID The Extended Display Identification Data Color Temperature White Balance Adjustment Make sure RS 232C control Selection Factory output option 4 PCB Assembly Adjustment 4 1 Using RS 232C Adjust 3 items a...

Page 6: ...t MSPG 925FA Model 225 Pattern 65 Set Component 1080p mode and 100 Horizontal Color Bar Pattern HozTV31Bar then set TV set to Component mode and its screen to NORMAL 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 After Then Press key of Service remocon Right Arrow ...

Page 7: ...arry the command Automatically download The use of a internal Data For write EDID data setting Jig and another instruments Item Adjust Mode Out Adjustment Confirmation CMD 1 A A CMD 2 E E Data 0 9 9 0 9 To check Download on Assembly line 00 FF FF FF FF FF FF 00 1E 6D 01 00 01 01 01 01 01 18 01 03 80 A0 5A 78 0A EE 91 A3 54 4C 99 26 0F 50 54 A1 08 00 31 40 45 40 61 40 01 01 01 01 01 01 01 01 01 01 ...

Page 8: ...ion Diagram Auto Adjustment Using Inner Pattern Using HDMI input connection Diagram for Adjustment White balance 00 FF FF FF FF FF FF 00 1E 6D 01 00 01 01 01 01 01 18 01 03 80 A0 5A 78 0A EE 91 A3 54 4C 99 26 0F 50 54 A1 08 00 31 40 45 40 61 40 01 01 01 01 01 01 01 01 01 01 64 19 00 40 41 00 26 30 18 88 36 00 B0 84 43 00 00 18 A0 0F 20 00 31 58 1C 20 28 80 14 00 B0 84 43 00 00 1E 00 00 00 FD 00 3A...

Page 9: ...bellowed one Manual adjustment sequence is like bellowed one Turn to Ez Adjust mode with press ADJ button of service remocon Select 10 Test Pattern with CH button and press enter Then set will go on Heat run mode Over 30 minutes set let on Heat run mode Let CA 210 to zero calibration and must has gap more 10cm from center of PDP module when adjustment Press ADJ button of service remocon and select...

Page 10: ...its result is OK then automatically it turns to ESD Test Operate ESD test If its result is NG then notice with buzzer If its result is OK then process next steps Notice it with Good lamp and STOPER Down 6 3 Check Items Test Voltage GND 1 5KV min at 100mA Signal 3KV min at 100mA Test time just 1 second Test point GND test Test between Power cord GND and Signal cable metal GND ESD test Test between ...

Page 11: ... Threshold Down Low 20 Threshold Up Low 23 Threshold Down High 70 Threshold Up High 75 8 USB DOWNLOAD epk file download Put the USB Stick to the USB socket Press Menu key and move OPTION Press FAV Press 7 times Select download file epk file After download is finished remove the USB stick Press IN START key of ADJ remote control check the S W version 9 Tool option Center Default COOL Mid Warm R Gai...

Page 12: ...X tal 24MHz Serial Flash 8M x 8bit DDR2 64Mbit IF AV COMP Hybrid Y CVBS Cb Cr AV COMP DVI L R L R HDMI Side TMDS DDC Video Front End Audio Front End HDMI RX LVDS out HD FHD HD SD Video Encoder TAS5733 Digital AMP I2S MCLK Audio DSP SPDIF Out UART RX TX Air Cable NTSC ATSC Side USB USB2 0 LVDS Con HD FHD IF ATSC Analog Demod IF NTSC EEPROM 64K x 8bit MODULE UART BLOCK DIAGRAM ...

Page 13: ... 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 manuf...

Page 14: ... 10K C228 0 1uF 16V C213 10uF 10V VA210 JP241 R252 75 C226 0 1uF 16V IC206 MAX3232CDR 3 C1 2 V 4 C2 1 C1 6 V 5 C2 7 DOUT2 8 RIN2 9 ROUT2 10 DIN2 11 DIN1 12 ROUT1 13 RIN1 14 DOUT1 15 GND 16 VCC R270 10K READY VA216 R254 470K R217 100K R259 10K R283 22 R246 33 R232 10K C220 10pF 50V C227 0 1uF 16V R237 1K R258 33 R285 100 R262 12K C212 0 1uF 16V R267 1K R216 100K C219 0 1uF 16V C229 0 1uF 16V C204 1...

Page 15: ..._AGC_MAIN 3 3V_TU TU_SCL TU_SDA IF_N_MSTAR IF_P_MSTAR TU_GND JP655 JP656 JP653 JP654 C301 0 1uF 16V C303 10uF 16V C302 0 1uF 16V READY R303 22 R301 22 R304 1 5K C304 68pF 50V R305 1 5K C305 68pF 50V R302 22 R308 0 1 16W 5 READY TDJH H101F TU300 47 SHIELD 6 IF P 7 IF N 8 NC_2 9 NC_3 1 B1 3 3V 2 NC_1 3 IF_AGC 4 SCL 5 SDA A1 A1 B1 B1 Tuner block 3 7 L13 2012 06 01 TUNER GND Saparate 14Y TUNER Copyrig...

Page 16: ...0P 16 SOGIN0 17 GIN0P 18 GIN0M 19 RIN0P 20 VSYNC0 21 AVDD3P3_ADC 22 BIN1P 23 SOGIN1 24 GIN1P 25 GIN1M 26 RIN1P 27 VSYNC1 28 CVBS1 29 CVBS0 30 VCOM 31 CVBS_OUT1 32 VDDC_1 33 AVDD_AU33 34 AUR0 35 AUL0 36 AUR1 37 AUL1 38 AUR2 39 AUL2 40 AUR3 41 AUL3 42 VAG 43 VRM 44 LINEOUTL3 45 LINEOUTR3 46 LINEOUTL0 47 LINEOUTR0 48 IFAGC 49 VIFP 50 VIFM 51 AVDD3P3_DADC 52 AVDD3P3_DMPLL 53 XIN 54 XOUT 55 AVDD_MOD_2 ...

Page 17: ...7 WC 8 VCC R519 22 R569 4 7K READY C519 470pF READY IC505 MX25L6406EM2I 12G MX 3 WP 2 SO SIO1 4 GND 1 CS 5 SI SIO0 6 SCLK 7 HOLD 8 VCC R564 10K C552 0 1uF P500 104060 8017 FHD 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78...

Page 18: ...1 16W R628 33 C666 0 1uF 50V R633 470 C653 10uF 35V C645 2200pF 50V C671 2200pF 50V L612 NRS6045T100MMGK 10 0uH C660 330pF 50V C642 0 1uF 16V C649 0 033uF 50V R636 18 IC606 TAS5733 1 OUT_A 2 PVDD_AB_1 3 PVDD_AB_2 4 BST_A 5 NC_1 6 SSTIMER 7 NC_2 8 PBTL 9 AVSS 10 PLL_FLTM 11 PLL_FLTP 12 VR_ANA 13 AVDD 14 A_SEL_FAULT 15 MCLK 16 OSC_RES 17 DVSSO 18 VR_DIG 19 PDN 20 LRCLK 21 SCLK 22 SDIN 23 SDA 24 SCL ...

Page 19: ......

Page 20: ... Video Trouble Shooting 5 Component Video Trouble 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 Please check system after power Off On one time...

Page 21: ...xternal Input EXT_IN HDMI_D CVBS_LIVE TP1 CVBS_LIVE SIF1 Cable ISDB T PAL NTSC System Scalar IF I2S_S7LR TAS5733 AV1 AV1_LR COMP1_LR EXT_IN Audio Out USB2 0 SPDIF SIF_LIVE I2S_S7LR Comp1 HDMI_Rear D port SIDE HDMI_PORT HDMI_C Serial_Flash 1MB USB Side USB 1 Power Up Boot Fail Trouble Shooting Micom Rear 0 Side 1 Main IC inner PM DDR2 64MB 32 2 ...

Page 22: ...ck Y N Check Voltage Level 1 8V at R675 1 8V_DDR N Replace of the IC613 Recheck N Y Check Voltage Level 3 3V at L604 Main IC supply voltage N Replace of the IC600 Recheck N Y Check X400 Clock 24MHz N Replace X400 Y Check signal transition at IC505 N Maybe Serial Flash Memory problem Check signal transition IC504 Y Check All Voltage Level at Bead RL_ON IC400 output N Replace one of Bead IC400 Reche...

Page 23: ...LVDS Front end External Input EXT_IN HDMI_D CVBS_LIVE TP1 CVBS_LIVE SIF1 Cable ISDB T PAL NTSC System Scalar IF I2S_S7R TAS5733 AV1 AV1_LR COMP1_LR EXT_IN Audio Out USB2 0 SPDIF SIF_LIVE I2S_S7LR Comp1 HDMI_Rear D port SIDE HDMI_PORT HDMI_C Serial_Flash 1MB USB Side USB Rear 0 Side 1 2 No OSD Trouble Shooting TP1 DDR2 64MB 32 2 ...

Page 24: ...r connector Y Y Check P500 P503 RXAC RXAC RXBC RXBC Display Enable N Y Check LVDS Cable N Replace Cable Y Check PDP Module Check 5V Voltage Level at L600 N Replace one of L600 Recheck Maybe IC400 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 P600 5V_ON Check GPIO Path o...

Page 25: ...ine Check Signal output 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 cab...

Page 26: ...l Input CVBS_LIVE SIF1 Cable ISDB T PAL NTSC IF AV1 AV1_LR COMP1_LR EXT_IN Comp1 HDMI_Rear D port SIDE HDMI_PORT 3 Digital TV Video Trouble Shooting TP1 Main IC FHD LVDS EXT_IN HDMI_D CVBS_LIVE TP1 System Scalar I2S_S7R TAS5733 Audio Out USB2 0 SPDIF SIF_LIVE I2S_S7LR HDMI_C Serial_Flash 1MB USB Side USB Rear 0 Side 1 DDR2 64MB 32 2 ...

Page 27: ...nly for training and service purposes 3 Digital TV Video Trouble Shooting Check RF Cable Y Maybe Mstar IC400 has problems Check Tuner Power 3 3V 1 1V N Replace one of Bead Recheck Y Check IF Signal pin N Maybe Tuner has problems Y Tuner I2C check ChangeTuner type at adjust menu ...

Page 28: ...l Input CVBS_LIVE SIF1 Cable ISDB T PAL NTSC IF AV1 AV1_LR COMP1_LR EXT_IN Comp1 HDMI_Rear D port SIDE HDMI_PORT 4 Analog TV Video Trouble Shooting TP1 Main IC FHD LVDS EXT_IN HDMI_D CVBS_LIVE TP1 System Scalar I2S_S7R TAS5733 Audio Out USB2 0 SPDIF SIF_LIVE I2S_S7LR HDMI_C Serial_Flash 1MB USB Side USB Rear 0 Side 1 DDR2 64MB 32 2 ...

Page 29: ...c All rights reserved Only for training and service purposes 4 Analog TV Video Trouble Shooting Check RF Cable Y Check CVBS Signal N Y N Y Check Tuner Power 3 3V 1 1V Replace one of IC608 L606 Recheck Maybe Tuner has problems Maybe Mstar IC400 has problems ...

Page 30: ...nput CVBS_LIVE SIF1 Cable ISDB T PAL NTSC IF AV1 AV1_LR COMP1_LR EXT_IN Comp1 2 RGB HDMI_Rear D port SIDE HDMI_PORT 5 Component Video Trouble Shooting TP1 Main IC FHD LVDS EXT_IN HDMI_D CVBS_LIVE TP1 System Scalar I2S_S7R TAS5733 Audio Out USB2 0 SPDIF SIF_LIVE I2S_S7LR HDMI_C Serial_Flash 1MB USB Side USB Rear 0 Side 1 DDR2 64MB 32 2 ...

Page 31: ... Check Signal Format Is it supported signal Y Check Component Jack JK210 N Y Check Component Signal R251 R252 R253 R106 R107 R108 Termination resistor N Replace one of R251 R252 R253 R106 R107 R108 Recheck Y Check Component Signal R429 R436 R438 R446 R444 R434 Main IC Input N Replace it Y Y Check Component Cable Replace Jack Maybe Mstar IC400 has problems ...

Page 32: ...t AV1 AV1_LR COMP1_LR EXT_IN Comp1 HDMI_Rear D port SIDE HDMI_PORT 6 AV Video Trouble Shooting Front end CVBS_LIVE SIF1 Cable ISDB T PAL NTSC IF TP1 Main IC FHD LVDS EXT_IN HDMI_D CVBS_LIVE TP1 System Scalar I2S_S7R TAS5733 Audio Out USB2 0 SPDIF SIF_LIVE I2S_S7LR HDMI_C Serial_Flash 1MB USB Side USB Rear 0 Side 1 DDR2 64MB 32 2 ...

Page 33: ... service purposes 7 AV Video Trouble Shooting Y Check Jack JK211 JK208 N Y Check CVBS Signal R424 426 N Y Check CVBS Signal R4425 N Replace one of R4285 Recheck Y Y Replace Jack Maybe Mstar IC400 has problems Check Signal Format Is it supported signal Check AV Cable Replace one of R424 426 Recheck ...

Page 34: ... AV1 AV1_LR COMP1_LR EXT_IN Comp1 HDMI_Rear D port SIDE HDMI_PORT 8 HDMI Video Trouble Shooting Front end CVBS_LIVE SIF1 Cable ISDB T PAL NTSC IF TP1 Main IC FHD LVDS EXT_IN HDMI_D CVBS_LIVE TP1 System Scalar I2S_S7R TAS5733 Audio Out USB2 0 SPDIF SIF_LIVE I2S_S7LR HDMI_C Serial_Flash 1MB USB Side USB Rear 0 Side 1 DDR2 64MB 32 2 ...

Page 35: ...Only for training and service purposes 8 HDMI Video Trouble Shooting Check Signal Format Is it supported signal Y Check HDMI Jack JK200 JK201 N Y Y Check HDMI Cable Replace Jack Check I2C Signal EEPROM R231 R2246 R207 R2208 N Replace It Recheck Maybe Mstar IC400 has problems Y ...

Page 36: ...1 AV1_LR COMP1_LR EXT_IN Comp1 HDMI_Rear D port SIDE HDMI_PORT 9 All Source Audio Trouble Shooting Front end CVBS_LIVE SIF1 Cable ISDB T PAL NTSC IF TP1 Main IC FHD LVDS EXT_IN HDMI_D CVBS_LIVE TP1 System Scalar I2S_S7R TAS5733 Audio Out USB2 0 SPDIF SIF_LIVE I2S_S7LR HDMI_C Serial_Flash 1MB USB Side USB Rear 0 Side 1 DDR2 64MB 32 2 ...

Page 37: ...k Connector 601 N Y Y Check Speaker Replace Connector Check Signal L609 L602 L603 L610 N Replace one of Capacitor Register Recheck Y Check IC606 Power 17V 3 3V N Replace It Recheck Y Check Mstar S7R I2S Output AR600 N Replace It Recheck Y Maybe Mstar IC400 has problems Replace Speaker N N Maybe STA380 has problems Replace It Amp I2C check Check Reset signal R628 N Replace It Recheck IC101 Y ...

Page 38: ... AV1_LR COMP1_LR EXT_IN Comp1 HDMI_Rear D port SIDE HDMI_PORT 10 Digital TV Audio Trouble Shooting Front end CVBS_LIVE SIF1 Cable ISDB T PAL NTSC IF TP1 Main IC FHD LVDS EXT_IN HDMI_D CVBS_LIVE TP1 System Scalar I2S_S7R TAS5733 Audio Out USB2 0 SPDIF SIF_LIVE I2S_S7LR HDMI_C Serial_Flash 1MB USB Side USB Rear 0 Side 1 DDR2 64MB 32 2 ...

Page 39: ... reserved Only for training and service purposes 10 Digital TV Audio Trouble Shooting Check video output Y Follow procedure All source audio trouble shooting Maybe Mster internal audio DSP has problems Replace It N Follow procedure digital TV video trouble shooting N ...

Page 40: ...1 AV1_LR COMP1_LR EXT_IN Comp1 HDMI_Rear D port SIDE HDMI_PORT 11 Analog TV Audio Trouble Shooting Front end CVBS_LIVE SIF1 Cable ISDB T PAL NTSC IF TP1 Main IC FHD LVDS EXT_IN HDMI_D CVBS_LIVE TP1 System Scalar I2S_S7R TAS5733 Audio Out USB2 0 SPDIF SIF_LIVE I2S_S7LR HDMI_C Serial_Flash 1MB USB Side USB Rear 0 Side 1 DDR2 64MB 32 2 ...

Page 41: ...le Shooting Follow procedure analog TV video trouble shooting N Check video output Y Check SIF Signal N Y Follow procedure All source audio trouble shooting N Maybe Mstar audio block has problems Replace It N Y Check Tuner Power Replace one of IC608 IC604 IC602 Recheck Maybe Tuner has problems SIF waveform sample Defend on the input signal ...

Page 42: ...AV1_LR COMP1_LR EXT_IN Comp1 HDMI_Rear D port SIDE HDMI_PORT 12 Component AV Audio Trouble Shooting Front end CVBS_LIVE SIF1 Cable ISDB T PAL NTSC IF TP1 Main IC FHD LVDS EXT_IN HDMI_D CVBS_LIVE TP1 System Scalar I2S_S7R TAS5733 Audio Out USB2 0 SPDIF SIF_LIVE I2S_S7LR HDMI_C Serial_Flash 1MB USB Side USB Rear 0 Side 1 DDR2 64MB 32 2 ...

Page 43: ...ing and service purposes 12 Component RGB AV Audio Trouble Shooting Y Check Jack JK211 JK202 JK205 N Y Replace Jack Check Video Output N Follow procedure external input video trouble shooting Follow procedure All source audio trouble shooting N Maybe Mstar audio block has problems Replace It ...

Page 44: ...AV1 AV1_LR COMP1_LR EXT_IN Comp1 HDMI_Rear D port SIDE HDMI_PORT 13 HDMI Audio Trouble Shooting Front end CVBS_LIVE SIF1 Cable ISDB T PAL NTSC IF TP1 Main IC FHD LVDS EXT_IN HDMI_D CVBS_LIVE TP1 System Scalar I2S_S7R TAS5733 Audio Out USB2 0 SPDIF SIF_LIVE I2S_S7LR HDMI_C Serial_Flash 1MB USB Side USB Rear 0 Side 1 DDR2 64MB 32 2 ...

Page 45: ...All rights reserved Only for training and service purposes 13 HDMI Audio Trouble Shooting Check video output Y Follow procedure All source audio trouble shooting N Maybe Mstar audio block has problems Replace it N Follow procedure HDMI video trouble shooting ...

Page 46: ...put AV1 AV1_LR COMP1_LR EXT_IN Comp1 HDMI_Rear D port SIDE HDMI_PORT 14 USB Trouble Shooting Front end CVBS_LIVE SIF1 Cable ISDB T PAL NTSC IF TP1 Main IC FHD LVDS EXT_IN HDMI_D CVBS_LIVE TP1 System Scalar I2S_S7R TAS5733 Audio Out USB2 0 SPDIF SIF_LIVE I2S_S7LR HDMI_C Serial_Flash 1MB USB Side USB Rear 0 Side 1 DDR2 64MB 32 2 ...

Page 47: ...g Exception USB power could be disabled by inrushing current In this case remove the device and try to reboot the TV AC power off on Check USB 2 0 Cable Y Check JK209 N Y Y Check USB device If device is 2 5 inch HDD Check power adaptor Replace Jack Check 5V voltage level N Replace IC204 Recheck Y Maybe Mstar IC400 has problems Replace It ...

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