Panasonic TH-43DX400K Service Manual Download | Manualshive

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TH-43DX400K/TH-43DX400S/TH-43DX400T

16

6 Troubleshooting Guide

These flow charts may not match every single defeat TV set, but they can give you useful advices when you meet the same defeats
described on the titles below.

Terms:

• IR: Infrared Receiver
• RC: Remote Control
• IR logic: IR blink with RC action
• LVDS: Low Voltage Differential Signal, output from processor and input for panel
• O/C: Open Cell, panel with source board
• BL: Back Light,light source for panel module g,g f p
• LB: LED (Light Emitting Diode) Bar, light source for BL module
• VBL: Voltage for Back Light (before Boost)
• VLED: Voltage for LED (after Boost)
• OVP: Over Voltage Protection
• OSD: On Screen Display
• AMP: Amplifier

6.1.

No Power.

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Summary of Contents for TH-43DX400K

Page 1: ... Panasonic Corporation 2016 ORDER NO MTV1609089CE LED TV Model No TH 43DX400K TH 43DX400S TH 43DX400T Destination K Malaysia S Singapore T Thailand ...

Page 2: ...13 5 2 1 Upgrade bin file 13 5 2 2 USB upgrade procedures for TV set 13 5 3 Hotel Mode 14 6 Troubleshooting Guide 16 6 1 No Power 16 6 2 No Display Black Panel 17 6 3 No Back Light 18 6 4 No Sound 19 6 5 Signal source no function 20 6 6 Abnormal Display 21 6 7 No Tuning Channels 22 7 Disassembly and Assembly Instructions 23 7 1 Panel and Sponges 23 7 2 Main Board and AV Brackets 24 7 3 Install PCB...

Page 3: ... an ohmmeter between the jumpered AC plug and each exposed metallic cabinet part on the equipment such as screwheads connectors control shafts etc When the exposed metallic part has a return path to the chassis the reading should be 8 5Mohm to 13Mohm When the exposed metal does not have a return path to the chassis the reading must be 1 1 2 Leakage Current Hot Check See Figure 1 1 Plug the AC cord...

Page 4: ...uildup or exposure of the assembly 3 Use only a grounded tip soldering iron to solder or unsolder ES devices 4 Use only an anti static solder removal device Some solder removal devices not classified as anti static ESD protected 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...

Page 5: ...ed PCBs manufactured using lead free solder will have the PbF within a leaf Symbol PbF stamped on the back of PCB Caution Pb free solder has 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 to splash when heated too high about 1100 F or 600 C If you...

Page 6: ...43DX400S TH 43DX400T 6 3 Service Navigation 3 1 Service Hint Board Name Main Device Remarks A BOARD Main Board All boards are non repairable and should be exchanged for service P BOARD Power Board IR BOARD Remote Key ...

Page 7: ... 20 80 Storage temperature 15 C 50 C Storage Humidity 10 90 Environment only for Moderate climates zone Working temperature 5 C 35 C Working Humidity 20 80 Storage temperature 15 C 45 C Storage Humidity 10 90 Channel Coverage 48 864 MHz full range of RF Input System TV PAL BG DK PAL I NTSC M AV PAL NTSC SECAM Preset programme ATV 100 DTV 1000 Status displaying method On screen display Function adj...

Page 8: ...TH 43DX400K TH 43DX400S TH 43DX400T 8 5 Test and Alignment 5 1 Factory Setting Press AV button and follow with key 3 1 9 5 one by one ...

Page 9: ... you want to adjust and input adjust signal YPBPR channel 576P and 720P with 100 color bar VGA channel 1366 768 with tessellated white and black Select ADC Tune press button to auto adjust the ADC value Note 1 The YPBPR and PC s Auto White Balance adjust AUTO ADC must be done on the product line 2 In YPBPR channel must adjust the SD and HD two modes ...

Page 10: ... you want to adjust R GAIN G GAIN B GAIN R OFFSET G OFFSET B OFFSET Press buttons can adjust the value to the best effect COPY ALL Copy the values to all source 2 Picture Mode No adjust 3 OverScan Select OverScan go to the input source item to select the channel which you want to adjust Then press button to go to the items you want to adjust Left Crop Right Crop Up Crop Down Crop Press buttons can...

Page 11: ...ff 2 AGING MODE Press button to switch aging mode on or off When aging mode is on press EXIT button to exit this mode 3 Default Country No adjust 4 POWER ON MODE Press button to switch AC power on status Memory is power on memorized Seconda is power on standby Direct On is power on always 5 Country Setup No adjust 6 PQ FILE update No adjust 7 HDCP Key Update No adjust 8 CI Plus Key Update No adjus...

Page 12: ...t Enable Press button to switch Uart Enable on or off 2 Uart BUS Press button to switch Uart BUS on or off 3 Uart Msg Setting No adjust 4 Restore to Default Press OK to execute factory reset 5 AVD PAPAMETER No adjust 6 WDT No adjust 7 Mount Config No adjust 8 Customer Info No adjust 9 Unique Key Reencrypt No adjust 10 PIP POP No adjust 11 PVR Record All No adjust 12 SECURE WRITE No adjust 13 RAM L...

Page 13: ...grade procedures for TV set 1 Copy the software to the root directory of a USB memory stick Plug the memory stick to USB port of target TV set 2 Select Software Update USB on OSD and press OK button to start software update TVwill reboot automatically when upgrade finishes 3 If the process stop at 19 and TV reboot it means the software of both TV set and USB memory stick is the same ...

Page 14: ...TH 43DX400K TH 43DX400S TH 43DX400T 14 5 3 Hotel Mode Enter Hotel Mode MENU 7906 Enter Hotel Mode State ...

Page 15: ...ss button to set power on status Last is power on memorized Off is power on standby On is power on always 9 RS232 Press button to switch RS232 on or off When RS232 switched to on TV system need to reboot and Uart BUS in factory menu should be switched to On For command Power ON which is only available when monitor is turned off Baud rate is 38400 for other commands Baud rate should be 115200 10 LO...

Page 16: ... Receiver RC Remote Control IR logic IR blink with RC action LVDS Low Voltage Differential Signal output from processor and input for panel O C Open Cell panel with source board BL Back Light light source for panel module g g f p LB LED Light Emitting Diode Bar light source for BL module VBL Voltage for Back Light before Boost VLED Voltage for LED after Boost OVP Over Voltage Protection OSD On Scr...

Page 17: ...TH 43DX400K TH 43DX400S TH 43DX400T 17 6 2 No Display Black Panel ...

Page 18: ...TH 43DX400K TH 43DX400S TH 43DX400T 18 6 3 No Back Light ...

Page 19: ...TH 43DX400K TH 43DX400S TH 43DX400T 19 6 4 No Sound ...

Page 20: ...TH 43DX400K TH 43DX400S TH 43DX400T 20 6 5 Signal source no function ...

Page 21: ...TH 43DX400K TH 43DX400S TH 43DX400T 21 6 6 Abnormal Display ...

Page 22: ...TH 43DX400K TH 43DX400S TH 43DX400T 22 6 7 No Tuning Channels ...

Page 23: ... components according to spec 2 Stick conductive sponges according to spec No Decription Qty Remark 01 43 SKY RGB LCD MNG001 W Panasonic RDL43 1 50 mm 02 SCREW HM6x19 M6 HARDEN 2 14 3 kgf cm 03 6M20T 43E560 HI MAIN BOARD ASSEMBLE 1 04 CONDUCTIVE SPONGE 2 10 x 10 x 12 mm 05 CONDUCTIVE SPONGE 3 10 x 12 x 10 mm ...

Page 24: ...DX400S TH 43DX400T 24 7 2 Main Board and AV Brackets 1 Assemble AV brackets to the main board as shown No Decription Qty Remark 01 BTM AV BKT HIPS 94 V0 DG001 HB200B30 PA 1 02 SIDE AV BKT HIPS 94 V0 DG001 HB200S30 PA 1 ...

Page 25: ...TH 43DX400K TH 43DX400S TH 43DX400T 25 7 3 Install PCB 1 Assemble P Board and A Board according to spec 2 Do not overtighten screw No Decription Qty Remark 01 HI POWER ASS Y 1 02 WM 3x10 9 3 2 kgf cm ...

Page 26: ...400S TH 43DX400T 26 7 4 LVDS Cable 1 Assemble Wire and FFC cable according to spec 2 Make sure all pins are inserted fully No Decription Qty Remark 01 HOUSING 14 2 5 HOUSING 14 205 300mm 1 02 FFC 51 PINS P 0 5mm L 530mm 1 ...

Page 27: ...tton Ass y 1 Assemble LED Panel according to spec 2 Make sure all parts are clipped fully No Decription Qty Remark 01 F LENS PC TRANSPARENT TEA543 QE20A000 PA 1 02 CTRL KEY BKT ABS HNB003 CE300000 PA 32E3 1 03 6M20T 43E560 HI RECEIVER BOARD ASSEMBLY 1 ...

Page 28: ...ding to spec 2 Make sure all parts are clipped fully 3 Make sure parts are not mix No Decription Qty Remark 01 HOUSING 02 2 0 W BUCKLE HOUSING 02 2 5 1 02 HOUSING 02 2 5 W BUCKLE HOUSING 02 2 5 1 03 SPEAKER BOX 6 OHM 10W MAX 12W 32 190 43 2 04 HOUSING 06 1 25 HOUSING 06 2 0 300mm 1 ...

Page 29: ...on 1 Install as follow No Decription Qty Remark 01 EVA CUSHION 150x10x0 5mm 3 02 ADHESIVED TAPE CUSHION 200x10x1mm 1 03 B CAB HIPS 94 V0 1 04 INSIDE WIFI MODULE NTUD B3 W RTL8188ETV 1 05 SCREW B3 3x10 BLACK 1 3 5 1 kgf cm 06 HOUSING 06 1 25 HOUSING 06 2 0 300mm 1 ...

Page 30: ...TH 43DX400K TH 43DX400S TH 43DX400T 30 7 8 Back Cover Screw 1 Install as follow No Decription Qty Remark 01 SCREW AM3 6 BLACK W O NYLOK 13 3 5 1 kgf cm ...

Page 31: ...X400S TH 43DX400T 31 7 9 Label 1 Install as follow No Decription Qty Remark 01 BACK COVER LABEL 1 02 INLAY SIDE AV 1 03 INLAY BTM AV 1 04 POLY BAG 1160x840x0 05mm WITH PRINTING 1 05 DIGITAL LICENSE LABEL 1 Thailand only ...

Page 32: ...ule warping Never handle the module with keeping horizontal position when moving the module in order to avoid internal damage and deformation Never drop or hit the module About the work table When tightening a screw retention structures are required not to deform the LCD module Moving the TV Case with a stand Hold the specified parts as shown to stand the TV up and move it with two people ...

Page 33: ...TH 43DX400K TH 43DX400S TH 43DX400T 33 8 Measurements and Adjustments 8 1 Key Check Points ...

Page 34: ...TH 43DX400K TH 43DX400S TH 43DX400T 34 8 2 Power Flow Diagram ...

Page 35: ...TH 43DX400K TH 43DX400S TH 43DX400T 35 9 Block Diagram 9 1 System Block Diagram ...

Page 36: ...NPUT YPBPR IN䣺1 OPTION VIDEO IN䣺1 USB3 0䣺1 USB2 0䣺1 LAN FILTER NETWORK INPUT RJ45 AUDIO IN䣺1 L R TUNER 4K䣺2K 60Hz ENGINE ISDB T DECODER HEVC H 265 DECODER ARM ANVANCED MULTI CORE CPU ARM ANVANCED MULTI CORE GPU MHL2 0 USB 3 0 HDCP 2 2 I2C VBY1 AUDIO I2S L OUT R OUT NAND FLASH EEPROM PANLE 4K䣺2K AUDIO AMP TAS5707PHPR DDR3䣺4 IR LED G R BOARD WIFI MODULE SPDIF OUT EARPHONE LINE OUT ...

Page 37: ...H 43DX400S TH 43DX400T 37 10 Wiring Connection Diagram 10 1 Wire Dressing Stick tape for wire dressing No Decription Qty Remark 01 3M FILAMENT TAPE 9 18 mm x 55 mm 02 DOUBLE FACED ELECTRIC FABRIC 1 0 14 mm x 0 06 mm ...

Page 38: ...TH 43DX400K TH 43DX400S TH 43DX400T 38 11 Schematic Diagram ...

Page 39: ...TH 43DX400K TH 43DX400S TH 43DX400T 39 ...

Page 40: ...TH 43DX400K TH 43DX400S TH 43DX400T 40 ...

Page 41: ...TH 43DX400K TH 43DX400S TH 43DX400T 41 ...

Page 42: ...TH 43DX400K TH 43DX400S TH 43DX400T 42 ...

Page 43: ...TH 43DX400K TH 43DX400S TH 43DX400T 43 ...

Page 44: ...TH 43DX400K TH 43DX400S TH 43DX400T 44 ...

Page 45: ...TH 43DX400K TH 43DX400S TH 43DX400T 45 ...

Page 46: ...AUR_IN MDI_ RP MDI_ RN MDI_ TN MDI_ TP USB_ D USB_ D USB_ SS RXN USB_ SS RXP USB_ SS TXN USB_ SS TXP USB3 _E N USB_ 1D USB_ 1D SP DIF_O UT R1J55 10 Q1 U1 KM BT 39 04 1 2 3 SG 1J5 SP ARK RIJ61 RIJ48 NC CN F CN1 J12 1 2 3 4 5 6 D1U6 NC ES D R1J56 22 TD RD TX RX TN1J1 TRANSFORM ER 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 R1J89 NC 20 0K U1J1 G5 24 A3 T11 U OUT 1 GND 2 OC 3 EN EN 4 IN 5 SPDIF1 1 R1J66 22...

Page 47: ...TH 43DX400K TH 43DX400S TH 43DX400T 47 ...

Page 48: ... G_ODD 7 AM31 B4M G_ODD 5 AK2 9 B4P G_ODD 4 AM29 VBL _CT RL AJ 12 GPIO_PM1 AG4 PWR ON OFF AG6 GPIO_PM5 AG5 GPIO_PM7 AF4 GPIO_PM8 AD5 GPIO_PM11 L5 VID0 R6 VID1 R7 LED0 AH5 LED1 AH4 WOL_INT _OUT N5 B1M R_ODD 5 AH30 B3P G_ODD 6 AL30 LCK AG31 LDE AF30 LHSY NC AF31 LVS YNC AF32 GPIO2 AH14 DDCR_CK P6 R250 C816 10uF R69 Q25 NC MMBT 2907A B 1 E 2 C 3 C836 100nF C899 47nF R1014 C71 22pF C857 100nF FB7 0 0M...

Page 49: ... DQ25 C DDR3 DQ24 C DDR3 DM2 C DDR3 DQS3 C DDR3 DQS3B C DDR3 DQ21 C DDR3 DQ29 C DDR3 DQ30 C DDR3 DQ28 C DDR3 DQ17 C DDR3 DQ16 C DDR3 DQ18 C DDR3 DQ26 C DDR3 DQ27 C DDR3 DQS2 C DDR3 DQS2B C DDR3 DQ22 C DDR3 DQ23 C DDR3 A9 T2 C DDR3 A10 T2 C DDR3 DQ19 C DDR3 DQ20 C DDR3 DM3 C DDR3 A12 T2 C DDR3 A0 T2 C DDR3 A8 T2 C DDR3 A1 T2 C DDR3 A2 T2 C DDR3 A3 T2 C DDR3 A4 T2 C DDR3 A11 T2 C DDR3 A5 T2 C DDR3 A...

Page 50: ...TH 43DX400K TH 43DX400S TH 43DX400T 50 12 Exploded View and Replacement Parts List 12 1 Parts Location ...

Page 51: ...TH 43DX400K TH 43DX400S TH 43DX400T 51 12 2 Packing Instruction ...

Page 52: ...04 11284105 11 12 TZZ00002138A POWER BUTTON 1023 CE300000 21 13 TZZ00002139A BOTTOM AV BRACKET 1005 HB200B30 21 14 TZZ00002140A SIDE AV BRACKET 1005 HB200S30 21 15 TZZ00002141A AL LEFT BASE 1539 QE200BL0 01 16 TZZ00002142A AL RIGHT BASE 1539 QE200BR0 01 17 TZZ00002143A BACK COVER LABEL 0601 QE560000 P9 For TH 43DX400K Only 17 TZZ00002179A BACK COVER LABEL 0601 QE560001 P9 For TH 43DX400S Only 17 T...

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