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Service Manual

LCD Television 

TX-L42WT50B

 

TX-L47WT50B 

TX-L47WT50Y 

TX-LR47WT50

 

 

 LA34 Chassis 

Specifications

 

Information in brackets [ ] refers to model 47” 

 Power 

Source:

 

220-240V AC, 50 / 60Hz 

 

Rated Power Consumption: 

119W  [132W] 

 
 

Stand-by Power Consumption:   

0.20W  

 

 Aerial 

Impedance:

 75

 unbalanced, Coaxial Type 

     
              
 Receiving 

System:

 

WT50B ( UK ) 

 

 

 

DVB-T / T2            Digital terrestrial services 

(MPEG2 and MPEG4-AVC(H.264))

 

 

 

 

DVB-S/S2            Freesat services via Satellite dish input 

 

 

                         Receiver frequency range – 950 MHz to 2,150MHz 

 

 

                         LNB Power and Polarisation – Vertical: +13V 

 

 

                                                                Horizontal: +18V 

 

 

                                                                Current: Max. 500mA (overload protection) 

 

 

                         22 kHz Tone – Frequency: 22kHz ± 2kHz 

 

 

                                             Amplitude: 0.6V ± 0.2V 

 

 

                         Symbol Rate – Max. 30MS/s 

 

 

                         FEC Mode – 1/2, 3/5, 2/3, 3/4, 4/5, 5/6, 8/9, 9/10 

 

 

                         Demodulation – QPSK, 8PSK 

 

 

                         

Not available for

 

DiSEqC control

 

 

 

 

 

 

PAL  I                  UHF E21-E68 

 

 

PAL 525/60           (AV only) 

 

 

M.NTSC               (AV only) 

 

 

NTSC                  (AV only)

 

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

©   Panasonic  Corporation 2012.

 

Unauthorized copying

 

and 

distribution is a violation of law. 

ORDER No. PCZ1204084CE 

REVISION 2 

Summary of Contents for Viera TX-L42WT50B

Page 1: ...d MPEG4 AVC H 264 DVB S S2 Freesat services via Satellite dish input Receiver frequency range 950 MHz to 2 150MHz LNB Power and Polarisation Vertical 13V Horizontal 18V Current Max 500mA overload prot...

Page 2: ...tion 22 kHz Tone Frequency 22kHz 2kHz Amplitude 0 6V 0 2V Symbol Rate Max 30MS s FEC Mode 1 2 3 5 2 3 3 4 4 5 5 6 8 9 9 10 Demodulation QPSK 8PSK DiSEqC Version 1 0 PAL I H B G SECAM B G L L VHF E2 E1...

Page 3: ...Complies with CI x1 Wireless LAN Standard Compliance IEEE802 11a n IEEE802 11b g n Frequency Range IEEE802 11a n 5 180 GHz 5 320 GHz 5 500 GHz 5 580 GHz 5 660 GHz 5 700 GHz IEEE802 11b g n 2 412 GHz 2...

Page 4: ...N61000 3 2 EN61000 3 3 EN55020 EN55022 EN55024 This service information is designed for experienced repair technicians only and is not designed for use by the general public It does not contain warnin...

Page 5: ...EVINE NETFLIX 12 GENERAL INFORMATION 12 REPLACEMENT OF ICS 12 MODEL AND KEYS 12 USB HDD RECORDING 12 SETTING INSPECTION 13 SELF CHECK 14 POWER LED BLINKING TIMING CHART 16 SERVICE MODE FUNCTION 17 SER...

Page 6: ...tallic part and measure the voltage at each point 5 Reserve the AC plug in the AC outlet and repeat each of the above measure 6 The potential at any point TOUCH CURRENT expressed as voltage U1 and U2...

Page 7: ...can generate electrical charge sufficient to damage ES devices 5 Do not use freon propelled chemicals These can generate electrical charges sufficient to damage ES devices 6 Do not remove a replaceme...

Page 8: ...a higher melting point than standard solder Typically the melting point is 50 70 F 30 40 C higher Please use a high temperature soldering iron and set it to 700 20 F 370 10 C Pb free solder will tend...

Page 9: ...timing Signal name Horizontal frequency kHz Vertical frequency Hz 640 480 60 Hz 31 47 60 00 1 280 720 60 Hz 45 00 60 00 1 920 1 080 60Hz 67 50 60 00 Note Signals other than above may not be displayed...

Page 10: ...l assembly Lay the main unit face down see Fig 7 Remove the 2 fixing screws and the cover of the stand see Fig 8 Remove the 4 fixing screws and the pedestal assembly see Fig 9 Fig 5 1 1 SCREWS 1 THEC1...

Page 11: ...put Power Supply Key control Power switch LD Board LED Driver LP Board Panabadge LED K Board Power and Timer LED C A T S RM Unit IR Receiver TC Unit on panel P Unit K Board A Board A02 SP_L A10 A20 K1...

Page 12: ...o SELF CHECK While pressing VOLUME button on the main unit press the STATUS button on the remote control for more than 3 seconds TV will be forced to the factory shipment setting after this SELF CHECK...

Page 13: ...V 1 22V SUB 1 5 V TP8101 1 435V 1 585V SUB1 8V TP8700 1 7V 1 9V SUB3 3V TP5400 3 17V 3 43V SUB5V TP5420 4 80V 5 25V USB5V TP5440 4 94V 5 40V FE1 2V TP5780 1 14V 1 26V FE1 2V 2 5V TP5720 2 375V 2 625V...

Page 14: ...0 00 ZWEI SOFT 07010008 SUM C1B5 MODEL ID 09 03002100 00000020 TX L47WT50B 47FHD Panasonic 2012LCD Self Check Complete TUN O K STBY O K MEM1 O K MEM2 O K AVSW O K LAN O K ZWEI O K FE O K SAT TU O K ID...

Page 15: ...IX A Board BT IC8458 N5HZZ0000110 USB HUB BT DONGLE A Board BT Dongle WiFi IC8458 N5HBZ0000061 USB HUB WIFI DONGLE A Board Wifi Dongle If the CCU ports have been checked and found to be incorrect or n...

Page 16: ...to the stand by mode At this time the defective block can be identified by number of blinking of the Power LED on the front panel of the unit Blinking times Blinking timing Contents Check point 1 BL_S...

Page 17: ...this chassis The following setting and adjustment can be adjusted by remote control in Service Menu How to enter SERVICE While pressing v button on the TV unit press on the remote control for 3 times...

Page 18: ...MENU SELECT VOL ADJUST OK WRITE 11101110 OPTION DYNAMIC OPT 3 1 2 MAIN SELECT 3 4 SUB SELECT 5 6 BIT SELECT 9 PICTURE MENU SELECT VOL ADJUST OK WRITE 00000001 SRV TOOL DYNAMIC 1 2 MAIN SELECT 9 PICTU...

Page 19: ...ill be cleared by Self check indication and forced to factory shipment setting Power ON Time On Off Note To display TIME COUNT menu highlight position then press MUTE for 3sec Time Cumulative power on...

Page 20: ...nitial VOL Level Adjust the volume when each time power is switched on Selection Range Off 0 to 100 Off give priority to the last memory Maximum VOL Level Adjust maximum volume Range 0 to 100 Button L...

Page 21: ...cument A new file is created by default New Text Document txt 3 Right click the new text document that you just created and select rename and then change the name and extension of the file to the foll...

Page 22: ...r the completion of copying to SD card remove SD card from TV set 5 Turn off the TV set Note Following new folder will be created in SD card for data from TV set a For Board replacement user_setup b F...

Page 23: ...will be deleted after copying Limited one copy b For Hotel Data will not be deleted and can be used for other TVs 5 Turn off the TV set Note 1 Depending on the failure of boards function of Data for b...

Page 24: ...nable 6 0MHz ON 1 OFF 0 b7 NICAM DK enable 6 5MHz ON 1 OFF 0 OPTION3 b0 NICAM priority ON 1 OFF 0 b1 Starhub scan enable Singapore ON 1 OFF 0 b2 Enable special edge smoother function CHINA ON 1 OFF 0...

Page 25: ...the letter of Contrast will change from red to black White Balance adjustment 1 Procedure basically performs checking using the production software and make automatic adjustment using external compute...

Page 26: ...V scart JK3003 JK8600 ETHERNET TU6702 A12 SPEAKERS WOOFER A10 K BOARD REMOTE UNIT K10 LP BOARD LP10 RM10 A02 D3006 DIGITAL AUDIO OUT LCD PANEL A16 HP JK3051 JK3001 YUV V IN AUDIO IN Side Terminal Bott...

Page 27: ...SUB9V STB1 1V 28 12 32 STB3 3V HP_MUTE 23 Q4971 Q4972 HP_MUTE HP_MUTE PEAKSRST PEAKSRST STB_XRST STB_XRST AC13 BL_PWMA 3 PWM_A_IN F5 3 7 9 10 12 A02 TO P2 4 6 9 13 1 3 5 16V TV_SUB_ON STB5 8V 2 BL_ON...

Page 28: ...1 LD2 3 5 7 2 4 6 8 10 12 14 16 1 TO PANEL 11 13 15 9 LD4 2 5 7 1 TO P4 10 9 VLED VLED 16V 2 3 FB BL ON BL SOS 61 1 60 LED K8 LED K7 LED K6 LED K5 LED K4 LED K3 LED K2 LD1 3 5 7 2 4 6 8 10 12 14 16 TO...

Page 29: ...view section of the Replacement Parts List 33 29 7 31 35 14 1 28 15 4 6 13 47 42 TEWF383 47 42 TEWF387 47 42 TEWF386 47 42 TEWF385 47 42 TEWB890 47 42 TMK0EG081 47 42 TMK0EG079 UK CONTINENTAL 8 11 47...

Page 30: ...arts Location NOTE The numbers on the exploded view below refer to the exploded view section of the Replacement Parts List 32 39 40 27 37 34 2 38 20 36 17 21 22 16 2 30 9 10 3 5 12 18 25 19 23 24 26 3...

Page 31: ...ACKET _BOTT 22 TKZ5ZF5007A K P C B 23 TNPA5605AC LD P C B 24 TNPA5615AA LP P C B 25 TNPA5645AA BOTTOM COVER L ASSY 26 TTP5ZA0007 MISCELLANEOUS COMPONENTS BATTERY R6DB 2P CI LABEL TBM0E00603 SIDE BUTTO...

Page 32: ...Z2J360M0L DIODE D9511 DZ2J360M0L DIODE D9512 DZ2J360M0L DIODE D9513 DZ2J360M0L DIODE D9514 DZ2J360M0L DIODE D9515 DZ2J360M0L DIODE D9516 DZ2J360M0L TRANSISTORS TRANSISTOR Q2001 B1ADCF000194 TRANSISTOR...

Page 33: ...23 063W 5 22 SMD R0925 D0GA220JA023 063W 5 22 SMD R0926 D0GA220JA023 063W 5 22 SMD R0927 D0GA220JA023 063W 5 22 SMD R0928 D0GA220JA023 063W 5 22 SMD R0929 D0GA220JA023 063W 5 22 SMD R0932 D0GA220JA023...

Page 34: ...9 D0GA680JA023 063W 5 68 SMD R4750 D0GA680JA023 063W 5 68 SMD R4751 D0GA680JA023 063W 5 68 SMD R4752 D1BA1600A023 063W 1 160 SMD R4753 D1BA82R0A014 063W 1 82 SMD R4763 D0GA473JA023 063W 5 47K SMD R476...

Page 35: ...SMD R8254 D1HY2208A012 063W 5 22 SMD R8255 D1HY2208A012 063W 5 22 SMD R8256 D1HY2204A012 063W 5 22 SMD R8257 D1HY4704A012 063W 5 47 SMD R8258 D0GA220JA023 063W 5 22 SMD R8259 D1HY2208A012 063W 5 22 SM...

Page 36: ...A023 063W 5 1K SMD R8853 D0GA182JA023 063W 5 1K8 SMD R8854 D0GA102JA023 063W 5 1K SMD R8858 D0GA473JA023 063W 5 47K SMD R8859 D0GA473JA023 063W 5 47K SMD R8862 D0GA473JA023 063W 5 47K SMD R8863 D0GA47...

Page 37: ...AP C4936 F1G1C104A077 16V 100nF S M CAP C4937 F1K1V106A010 35V 10 F S M CAP C4946 F1J1E474A272 25V 470nF S M CAP C4947 F1J1E474A272 25V 470nF ELECT C4971 F2G0G101A007 4V 100 F ELECT C4972 F2G0G101A007...

Page 38: ...22 F S M CAP C8128 F1J0G2260001 4V 22 F S M CAP C8203 F1G1C104A077 16V 100nF S M CAP C8204 F1G1C104A077 16V 100nF S M CAP C8205 F1G1C104A077 16V 100nF S M CAP C8206 F1G1C104A077 16V 100nF S M CAP C82...

Page 39: ...K1KA14A00248 SD SLOT CN8660 K1NA12E00016 OPTICAL LINK D3006 K7AAAY000014 CI SLOT JK1070 K1NA68E00114 YUV V AUDIO IN TERMIN JK3001 K2HE2YYB0001 AV SCART TERMINAL JK3003 K1FY120E0002 PC TERMINAL JK3005...

Page 40: ...UGUESE TQB0E2247J DANISH TQB0E2247K BULGARIAN TQB0E2247M ROMANIAN TQB0E2247N LATVIAN TQB0E2247O POLISH TQB0E2247P HUNGARIAN TQB0E2247Q CZECH TQB0E2247R GREEK TQB0E2247S TURKISH TQB0E2247T ENGLISH TQB0...

Page 41: ...o change without notice REMARKS a Do not touch the hot part or the hot and cold parts at the same time as you are liable to a shock hazard b Do not short circuit the hot and cold circuits as electrica...

Page 42: ...MDIIC_SDA0 DMDIIC_SCL0 P_SCL0 P_DMDSCL0 P_DMDSDA0 P_STMGPIO6 R0924 22 R0938 100 R0910 3 3k R0954 2 7k R0926 22 R0918 22 R0925 22 R0946 100 R0948 100 R0955 2 7k R0963 2 7k R0960 100 R0961 100 R0962 2 7...

Page 43: ...14 15 16 17 18 19 C C C C C C C C C HDMI5VA HDMI5VB HDMI5VA HDMI5VA STB5V L4704 VJUMP1608 S L4701 VJUMP1608 S L4702 VJUMP1608 S L4703 VJUMP1608 S L4700 VJUMP1608 S L4705 VJUMP1608 S R4757 TP4502 TP450...

Page 44: ...L4707 VJUMP1608 S L4717 VJUMP1608 S L4716 VJUMP1608 S L4706 VJUMP1608 S L4708 VJUMP1608 S L4715 VJUMP1608 S TP4720 P_RX1M1 P_RX0P1 P_RX2M0 P_RX3CM P_RX3P0 P_RX3M2 P_RX3M1 P_RX3P1 P_RX3P2 P_RX2CP P_RX...

Page 45: ...MT0 20 PLIMT1 21 CLK_MOD 22 ERROR 23 VCCP2 24 VCCP2 25 GNDP2 26 OUT2P 27 OUT2P 28 GNDP2 29 OUT2N 30 OUT2N 31 VCCA 32 MCLK 33 A12 K1KY06BA0387 1 2 3 4 5 6 L4903 G1C100MA0533 L4905 G1C150MA0533 L4904 G1...

Page 46: ...C C C C C C C C C C C C C C C C C C C SUB3 3V SUB9V SUB5V SUB3 3V VJ002 VJ001 VJ3001 L3006 TP3049 TP3035 TP3031 TP3050 TP3033 TP3034 TP3032 AVSW_R002PIN_CYIN2 E_AV1_LOUT _3PIN _TERMINAL AVSW_R045PIN_...

Page 47: ...R A_AV2C_PR__TERMINAL E_AV1_LIN _6PIN A_AV3_L__TERMINAL E_YPBPR_Y A_AV2C_Y__TERMINAL PC_G_TERMINAL AVSW_R031PIN_CVBSOUT3 E_AV1_FB 16P _TERMINAL E_AV1_RIN _2PIN A_AV3_R__TERMINAL E_PC_LIN A_AV2_LIN__TE...

Page 48: ...P8375 TP8342 TP8402 TP8403 TP8404 TP8378 TP8368 TP8369 TP8380 TP8379 TP8360 TP8355 TP8393 TP8334 TP8344 TP8372 TP8389 TP8335 CI_DATAINA3 CI_EAA12 P_HS0DOUT6 CI_DATAINA5 CI_DATAINA0 P_HS0DOUT2 CI_CE1 P...

Page 49: ...N_CN P_TB2P P_TC2N P_TC2P P_TCLK2N P_TCLK2P TD1N_CN P_TD2P TCLK2P_CN P_TD1P P_TCLK1P TCLK1N_CN P_STMSBT0 P_TE1N TE1N_CN TE1P_CN TD2N_CN TC1P_CN TC1N_CN TB1N_CN TCLK1P_CN TD1P_CN P_STMTIME3 P_TB2N P_TD...

Page 50: ...406 Q5302 B1CFRD000100 AON7406 R5309 100k R5308 3 9k R5307 1 3k R5422 910 R5306 3k R5403 2 87k 1 R5402 910 R5443 7 5k R5421 33k 1 R5442 1 3k R5303 1k R5401 22k 1 R5423 4 87k 1 R5304 47k R5302 19 6k 1...

Page 51: ...C STB5V P15V USB5V SUB3 3V STB3 3V SUB3 3V SUB3 3V STB5V SUB5V SUB3 3V SUB5V P15V SUB_AI_3 3V SUB9V TU_1 2V 2 5V STB1 1V SUB1 5V SUB1 1V STB3 3V STB3 3V VJ5150 VJ5151 VJ5101 R5173 R1955 VJ5016 VJ5018...

Page 52: ...ABCE000015 Q2013 B1ABCE000015 Q2011 B1ABCE000015 Q2001 B1ADCF000194 Q2015 B1ADCF000194 R2053 47k R2058 47k R2061 22k R2000 56k R2016 1 2k R2034 0 1 0 x 0 5 D0GAR00J0005 ERJ2GE0R00X R2054 100k R2019 10...

Page 53: ...40 NC 41 I O4 42 I O5 43 I O6 44 I O7 45 NC 46 NC 47 DNU 48 VSS C C C SUB3 3V SUB3 3V SUB3 3V SUB3 3V R8917 R8916 R8918 R8919 R8915 R8914 R8906 TP8902 TP8904 TP8900 TP8907 TP8908 TP8912 TP8909 TP8901...

Page 54: ...PMEB 25 LED1 PHYAD 1 26 CRS CRS_DV 27 COL 28 RXER FXEN 29 DVDD10OUT 30 AVDD33 31 CKXTAL1 32 CKXTAL2 33 Thermal_Pad JK8600 K2LC1YYE0003 1 2 3 4 5 6 7 8 T8600 G5BYC0000040 1 TD 2 CT 3 TD 4 NC 5 NC 6 RD...

Page 55: ...40 OVR 2 41 PWR 2 42 OVR 1 43 PWR 1 I2C_SDA 44 SEL27 45 GREEM 1 SPI_SK FIXED_PORT1 46 AMBER 1 SPI_CS 47 VCC 48 VREG JK8450 K1FY104B0081 1 2 3 4 JK8452 K1FY104B0081 2012 N 1 2 3 4 JK8451 K1FY104B0081 1...

Page 56: ...3 P_SDWP P_SDDAT1 P_SDDAT0 P_SDCMD P_SDCD R8667 D1HY5604A012 R8668 D1HY5604A012 R8666 D1HY1038A012 10k R8664 56 R8661 56 R8662 56 R8665 56 R8674 2 4k 1 1 R8673 7 5k R8663 56 R8669 100 R8660 56 C C R87...

Page 57: ...00 AL2 PHYRSTL IC8000 N22 VSS IC8000 Y2 TCLK2P IC8000 AC6 CH1CLK IC8000 AM31 STMGPIO5 IC8000 AL10 AGCI0 IC8000 B21 MMCDAT0 IC8000 AH11 VSS IC8000 G32 SDDAT1 IC8000 F32 HS0VALOUT IC8000 AC1 TD1N IC8000...

Page 58: ...C C C C C C C SUB1 1V SUB1 5V HDMI3 3V SUB1 8V SUB3 3V STB1 1V VDDSD18V33V STB3 3V WOL3 3V R8009 R8002 R8003 R8008 R8007 R8006 P_VDDSD18_33 SUB1 1V P_VDD33 P_VDD33 P_VDD33 P_VDDWOL33 HDMI3 3V SUB1 5V...

Page 59: ...35 L8101 G1C2R2ZA0311 PGND2 AGND1 PGND2 AGND2 PGND2 AGND1 AGND2 PGND2 PGND2 AGND1 PGND1 PGND1 PGND1 PGND1 DCDCIN SUB1 1V SUB1 5V TP8101 TP8100 DCDCEN Q8100 B1CFRD000100 Q8101 B1CFRD000100 R8117 1 05k...

Page 60: ...C8 DQU2 IC8201 C2 DQU3 IC8201 P8 A4 IC8201 K7 CK IC8201 T1 VSS IC8201 B7 DQSU IC8201 E2 VSSQ IC8201 K2 VDD IC8201 N7 A12 BC IC8201 L1 NC IC8201 A2 DQU5 IC8201 R8 A6 IC8201 D8 VSSQ IC8200 L9 NC IC8201...

Page 61: ...J0JHC0000116 L6707 J0JYC0000070 L6702 J0JGC0000020 L6721 J0JYC0000156 L6711 J0JYC0000070 L6851 G1C100MA0533 C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C SUB3 3V P15V P15V FE_1 2...

Page 62: ...9507 TP9508 TP9501 TP9571 TP9572 TP9570 TP9569 TP9513 TP9567 TP9566 TP9565 TP9564 TP9563 TP9562 TP9518 TP9560 TP9559 TP9558 TP9557 TP9556 TP9555 TP9554 TP9553 TP9552 TP9551 TP9550 TP9549 TP9548 TP9547...

Page 63: ...9 TP2802 TP2808 1 R2805 2 26k R2807 0 1 R2800 953 POWER_LED AI_SENSOR G_LED_ON SUB3 3V STBY 3 3 AI GND R_LED_ON REC_LED_R REC_LED_G I K BOARD TNPA5605 TO A10 A B C D E F G H 1 2 3 4 5 6 7 8 9 10 11 12...

Page 64: ...R4924 L6758 R4797 C8243 C8042 R4763 R5404 R1960 C6759 R0929 C3065 IC8100 VJ8450 C6855 C4929 R2011 C8009 A21 R0902 C8235 C8222 FL4005 R8864 R8434 CN8660 C5441 VJ6700 C4912 R4900 R4913 C4750 C8007 R479...

Page 65: ...R019 TP8663 TP8403 C036 TP8350 TP8904 TP8700 TP2301 TP8600 TP2001 TP8391 TP8378 TP5002 TP0904 C055 TP3033 C045 TP8349 TP2009 C017 TP8906 TP0909 TP8715 TD8407 TP2025 C070 C033 R013 TP8361 TP4068 TP670...

Page 66: ...515 Q9511 C9516 Q9512 C9517 Q9513 C9518 Q9514 C9519 Q9515 Q9516 C9520 C9521 D9501 D9502 D9503 D9504 R9500 D9505 R9501 D9506 R9502 D9507 R9503 D9508 R9504 D9509 R9505 R9506 R9507 R9508 IC9500 R9509 D95...

Page 67: ...LP BOARD TNPA5645 TOP LP BOARD TNPA5645 BOTTOM AB TNPA5645 1 LP AA S U F F I X D2880 D2881 D2882 D2883 D2884 R2884 R2885 C2880 3 1 LP10 67...

Page 68: ...FIX 1 1 1 SN2800 TP2800 TP2801 TP2802 TP2803 TP2806 TP2807 TP2808 TP2809 C2801 C2803 C2804 C2805 C2806 C2807 C2808 C2809 D2800 D2801 D2802 D2803 R2800 D2804 R2801 D2805 R2802 D2806 R2803 D2807 R2804 D...

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