Panasonic LCD-2016 Technical Manual Download

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Board Layout -1 ( DX*** series )

T*-**

DX900

T*-

DX***,

TH/TC

DX***

T*-

DX***

T*-

49/50/58

DX***,

TX-55

DX***

LDP

GK board : depend on the model

BT : depend on the model and region

Summary of Contents for LCD-2016

Page 1: ...Model No LCD 2016 2016 LCD TV Circuit Operation and Troubleshoot c Panasonic Corporation 2016 Unauthorized copying and distribution is a violation of law 1 ...

Page 2: ...eo Signal Processing 3 Power Supply 3 1 Power Board Structure 3 2 Stand by Start up Operation 4 SOS Protection Circuit and Troubleshooting except 1 time blink 5 Difference of LED Drive Circuit Troubleshooting for 1 time blink 2 ...

Page 3: ...1 Board Layout 3 ...

Page 4: ...Board Layout 1 DX series T DX900 G P PB A K K T 65DX TH TC 55DX G P PB A K K T 40DX T 49 50 58DX TX 55DX LDP G P A G P A K K K K GK board depend on the model BT depend on the model and region 4 ...

Page 5: ...yout 2 D DS series T 49 43DS T 65 55DS T 49 43D LD LDP G P A G P A K K K K T 50 40 32DS T 40 32D P G A K TH 32D400 A P A GK K K WiFi only DS series BT only TC DS6 TX DS630 series GK board depend on the model 5 ...

Page 6: ... 8 DX900 4K 4K 32inch A P A P 40inch A P A P A P LDP 43inch A P LD A P LD 49inch A P LD A P LD A P 50inch A P A P 55inch A P LDP A P A P PB only TH 55DX640 TC 55DX700 58inch A P A P PB 65inch A P LDP A P PB A P PB Except K GK boards 6 ...

Page 7: ...rd Layout 1 A P P3 P A15 A10 AC input Speaker 32D400 A02 A A12 Speaker K10 K Board Name Function A Board Main Board P Board Power supply Backlight Drive Power key Control key K Board Remote Receiver LED 7 ...

Page 8: ...D A15 A10 A19 A12 T CON Not repairable One of the panel module 49DS630 A02 A Speaker K10 K Board Name Function Board Name Function A Board Main Board GK Board Key P Board Power supply for Signal Process K Board Remote Receiver Power LED LD Board Power supply for Backlight Drive 8 ...

Page 9: ...eaker P AC input T CON Not repairable One of the panel module K10 A17 A12 A10 Speaker K A Bluetooth Module Board Name Function Board Name Function A Board Main Board GK Board Key P Board Power supply for Signal Process K Board Remote Receiver Power LED PB Board Power supply for Backlight Drive 9 ...

Page 10: ...2 Video Signal Processing 10 ...

Page 11: ...ocess 1 D4 series OPT_out A USB1 Antenna terminal AV Component HDMI1 2 TU670 TUNER IC68 De Modulation IC8000 MTK5561 Resize IP conv OSD LVDS Data to LCD Panel The input terminals are different by the models or countries 11 ...

Page 12: ...tenna TU670 terminal TUNER AV Component LAN HDMI1 2 3 IC8601 USB HUB IC68 De Modulation IC8650 LAN OPT_out IC8000 Peaks LD6 sLD8A Resize IP conv OSD A LVDS Data to LCD Panel The input terminals are different by the models or countries 12 SCART Europe CI slot Europe ...

Page 13: ...TU670 IC68 TUNER De Modulation IC8000 MT5810 IC9000 Mstar NTK Resize IP conv Frame Rate OSD Convert 2D 3D A to LCD Panel V by One format HDMI1 2 3 4 except below models HDMI1 2 3 4 TX DX8 TH DX640 TC DX700C IC4500 HDMI SW 1 Bluetooth only DX9 7 except TC DX700C The input terminals are different by the models or countries 13 CI slot Europe ...

Page 14: ...nna TU670 OPT_out IC8705 USB HUB IC8000 MT5810 IC4300 IC68 Resize GCEX2 De Modulation IP conv IC9000 NTK A to LCD Panel terminal TUNER Component LAN HDMI1 2 3 4 OSD HDR 2D 3D Hexa chroma IC4500 HDMI SW Frame Rate Convert V by One format The input terminals are different by the models or countries 14 ...

Page 15: ...ls are converted to 1080p Digital television reception of the tuner is output in the form of an IF Intermediate Frequency signal The transport stream from the tuner enters the VSB I F Interface section of IC8000 where the video signal is extracted and converted to YUV data The output is provided to the Video Input I F for selection The JPEG data of the SD card enters the JPEG I F section of IC8000...

Page 16: ...se confirm the flat cable connection between A board and T CON board How to enter While pressing volume button of the TV unit press option yellow button of the remote control 3 times within 2 seconds How to exit Switch off the TV unit The test pattern is created by the circuit in LCD Panel Module T CON board A LCD Panel Module IC8000 LCD Panel Some patterns are automatically changed The patterns a...

Page 17: ...und are created by the main IC on the A board TV Self Test OK 1 During this indication Self Check of Service Mode is working at the background does not apply to D400 410 series 2 If NG indication is shown A board defective 3 If All OK it shifts to picture and sound test Yes 1 Antenna level low 2 Connection mistake 3 Input devices NG 4 Input select mistake No TV unit defective A board Panel or Spea...

Page 18: ...3 Power Supply 3 1 Power Board Structure 18 ...

Page 19: ...Power Board Structure 1 P Board only P VLED Anode Power IC PFC IC P HO Power IC LO 16V LED Drive IC PWM BL ON BL ON 16V REG STB5V Cathode Backlight A 19 ...

Page 20: ...Power Board Structure 2 P LDP LD board P LDP LD PFC IC HO Power IC LO P LDP LD VLED Power IC LED Drive IC PWM BL ON 16V BL ON 16V REG STB5V Anode Cathode Backlight A 20 ...

Page 21: ...ure 3 P PB board P PB only 65DX7 8 TNPA6249 HO Power ICLO PB VLED1 Anode Power IC Cathode LED Drive IC VLED2 Anode Power IC Cathode LED Drive Backlight IC PWM PFC IC P TNPA6060 16V HO Power ICLO BL ON 16V REG STB5V A 21 ...

Page 22: ...rd Structure 4 P PB board P PB TNPA6200 only DX9 VLED1 PB PFC IC PFC IC HO Power ICLO VLED2 HO Power ICLO 16V HO Power ICLO LED Drive IC REG Anode Cathode Backlight Sync control c BL ON A 16V STB5V P TNPA6199 22 ...

Page 23: ...3 2 Stand by Start up Operation The explanation is for the case of Power Board Structure 2 P LD LDP board 43 49DS630 but P P LD LDP P PB cases have similar start up operation 23 ...

Page 24: ...V 32V LCD Module LCD Panel 8 9 8 9 Output 6 6 3 3 16V 3 7 LED Drive 1 5 Ex TNPA5935 11 VLED1 2 P2 A02 BL_ON 10 T CON board PNL12V A19 1 2 3 4 F15V Output 1 2 3 9 12 STB5V 7 16V 1 3 5 TV_SUB_ON 2 POWER_ON 4 STB5V 11 12V PNL12V 5V A 3 3V 1 5V 1 1V 3 3V POWER Output STB3 3V GK Switch Ex TNPA5916 The DC level is different by the LCD panel 24 ...

Page 25: ...6V Output PB2 17 28 9 10 17 28 9 10 5 PB1 1 5 16V 16V P2 VLED2 LED Drive VLED1 BL_ON 16V TV_SUB_ON LCD Module LCD Panel T CON board PNL12V A16 A03 44 51 15 F15V 1 5 12V PNL12V 5V P POWER Switch TNPA6199 11 12 STB5V 9 Output POWER_ON 5VS 11 12 9 A02 A 3 3V 1 5V 1 1V 3 3V STB3 3V The DC level is different by the LCD panel 25 ...

Page 26: ...nel T CON board PNL12V 4 16V Output Q7403 DC DC IC7503 BL_ON 11 1 2 3 16V 1 7 STB5V 9 TV_SUB_ON 12 POWER_ON 10 1 3 5 11 2 2 4 A19 1 2 3 4 F15V STB5V KEY3 A When the TV is plugged in the power board outputs 5V for standby voltage POWER Switch When the power supply receives the TV_SUB_ON signal it outputs 2 different voltages 16V to the A board on pins 1 2 and 3 of connector P2 24 32V to the LED bac...

Page 27: ...01 AC100V 140V AC240V 330V D7401 02 C7422 Anode1 Q7402 05 OFF Anode2 7 PFC 7 Q7301 24V 32V Cathode1 IC7201 OFF HO 15 LO 11 VCC 10 IC7301 4 D7104 FB Q7302 D7408 09 C7423 VCC feedback PC7301 LD Q7403 16V OFF 2 Tr 1 LED Cathode2 Drive Tr 5 IC7800 LD2 11 13 1 3 7 P 7105 Start Vcc R7104 7105 VH 1 REF 6 PC7303 IC7503 6 IC7401 CE STB5V P2 27 ...

Page 28: ...he voltage on pin 1 rise up to predefined value IC7301 starts supplyinng of switching pulses for Q7301 Q7302 Due to this current starts to lead through winding of T7301 which starts to generate output voltages One of these voltages VCC is used for power supplying of the IC 7301 to its pin 10 When the power supply starts up the 16V is providing by D7408 09 C7423 This voltage leads to IC7503 which i...

Page 29: ...11 STB5V 3 3V 4 KEY3 PEAKS Signal Processing LED_on A11 K10 REMOTE 1 7 5 3 3 3V LED Each models are different pin allocation but operation is same OFF Standby It can receive only Power SW It can receive Power SW Remote Viera Link and so on North America Automatically Power LED OFF Except North America Power LED OFF Power SW on Power LED RED 29 ...

Page 30: ... 8 of connector A11 K10 When the Power Switch on the key3 signal is grounded 1 The IC8000 lights on the RED LED and is ready to power on the TV by receiving the Power switch on Remote on Viera Link and so on This is a standby state 1 Only North America model Standby after the TV is plugged in The RED LED is off When the power on command coming from the power switch or remote control is provided to...

Page 31: ...2 7 Cathode1 PFC IC7201 Q7201 8 VCC HO 15 Q7202 LO 11 VCC10 Q7301 24V 32V Q7302 D7408 09 C7423 16V Q7801 P4 LD1 LD Q7403 Tr 1 LED Cathode2 Drive Tr 5 IC7800 Vcc LD2 11 D7104 7105 Start Vcc R7104 7105 IC7301 VH 1 4 FB VCC feedback PC7301 IC7401 SRV 16V 2 IC7503 6 BL ON 13 PWM 1 3 16V 7 STB5V 5 REF CS 6 mode change PC7303 PC7302 Q7303 L ON Standby ON Switch Q7401 CE SRV 5 3V P2 TV_SUB ON 9 P The DC ...

Page 32: ...tate to working state and output voltages rise up Also the ON command is connected to the Q7202 which provides power supply VCC of PFC circuit The PFC starts to operate Output voltages from transformer T7301 start rising up until the moment when IC7401 starts to operate This IC measures the 16V line output in the secondary side The output of this IC is provided by PC7301 to pin 4 of IC7301 IC7301 ...

Page 33: ... T7202 IC7201 DC DC IC7301 P 24 32V Output ransformer T7301 16V Output Q7402 05 Q7403 9 2 DC DC IC7503 7 11 STB5V 1 1 F15V 2 3 16V 3 5 P2 A02 LCD_TV_SUB_ON IC5000 STB3 3V ANALOG ASIC IC8001 TNPA5916 IC5420 5V IC5400 3 3V 1 1V 1 5V 3 3V 1 8V IC8100 IC8101 HDMI3 3V SUB5V SUB3 3V IC5701 04 TU1 8V SUB1 1V SUB1 5V The DC level is different by the LCD panel 33 ...

Page 34: ... ASIC IC5000 and ICs Voltage regulators on the A board to generate the SUB Voltages used for signal processing operation SUB1 1V 1 5V 3 3V 5V and HDMI3 3V TU1 8V Each voltage regulators start up by high state of DCDCEN signal which is pull up to F15V So F15V is provided to A board each SUB voltage regulator ICs start output 34 ...

Page 35: ...12V Panel_VCC_ON2 IC8000 BL_SOS PEAKS PWM BL_ON T7202 IC7201 24 32V Output Q7402 05 9 2 DC DC IC7503 7 11 STB5V LCD_TV_SUB_ON IC5000 STB3 3V DC DC IC7301 P Transformer T7301 16V Output Q7403 1 1 2 3 16V 3 5 P2 A02 F15V ANALOG ASIC IC8001 TNPA5916 IC5420 5V IC5400 3 3V 1 1V 1 5V 3 3V 1 8V IC8100 IC8101 HDMI3 3V SUB5V SUB3 3V IC5701 04 TU1 8V SUB1 1V SUB1 5V The DC level is different by the LCD pane...

Page 36: ...he LCD Module 6 LD board backlight drive After that IC8000 outputs the BL_ON command to the LD board through P board The BL_ON command turns on the IC7800 for LED backlight drive Then the backlight starts lighting by PWM signals and LCD panel displays the picture If the backlight drive circuit does not work normally the BL_SOS signal is passed to IC8000 At that time IC8000 stops outputting the TV_...

Page 37: ... Anode2 7 Cathode1 PFC IC7201 Q7201 8 VCC HO 15 Q7202 LO 11 VCC10 Q7301 24V 32V Q7302 D7408 09 C7423 16V Q7801 P4 LD Q7403 Tr 1 LED Cathode2 Drive Tr 5 IC7800 Vcc LD2 11 D7104 7105 Start Vcc R7104 7105 IC7301 VH 1 4 FB VCC feedback PC7301 IC7401 SRV 16V 2 IC7503 6 BL ON 13 PWM 1 3 16V 7 STB5V 5 REF CS 6 mode change PC7303 PC7302 Q7303 L ON Standby ON Switch Q7401 CE SRV 5 3V SUB ON P2 9 P The DC l...

Page 38: ...o A 5V Standby Power on Power LED Power on SUB_ON from A to P Standby PFC circuit IC7201 T7201 start working 16V 32 V output PANEL_VCC_ON2 signal PNL12V output BL_ON_ON signal 16V 32 V up to VLED North America Power LED Green RED Power LED Red OFF 16V from P to A Panel_Vcc_ON from A to Panel TCON PNL12V from A to Panel T CON BL_ON from A to Panel Backlight VLED from P to Panel Backlight Ex 24V 16V...

Page 39: ...B_OFF Stop 16V 32 V Stop 16V 32 V Power LED Green STB5V form P to A SUB_ON from A to P 16V from P to A Power LED 5V Power on Standby Power on 16V Standby Standby Power on Power SW on Remote on PANEL_VCC_ON2 signal PNL12V output BL_ON_ON signal 16V 32 V up to VLED North America Power LED Green RED Power LED Red OFF Power on Panel_Vcc_ON from A to Panel TCON PNL12V from A to Panel T CON 12V BL_ON fr...

Page 40: ... Americas Pow SW Power Off LED OFF Plug Plug Out In The Americas Pow SW Stand by LED Red Plug Plug Out In AC Off Stand by LED OFF Plug Plug Out In Remote Pow SW Remote AC Off Power On LED Green Plug Plug Out In Power On LED Red Plug Plug Out In 40 ...

Page 41: ...4 SOS Protection Circuit and Troubleshooting Except 1 time blink 41 ...

Page 42: ...LD6 Peaks only sLD8A Euro DS6 DS D MT5810 DX Estimated Defect Board BL_SOS LED driver 1 Panel P 1 occurred several sec 1 1 later after power on IROM SOS Power on problem No F15V SUB3 3V voltage IROM SOS Power on problem No SUB5V SUB1 5V SUB1 1V voltage quick 1 occurred soon after power on quick 3 P A quick 3 P A Memory eMMC read problem quick 5 A No voltage SUB3 3V after wake up once 7 7 A 7 7 Aud...

Page 43: ...nk N SOS 11 10 BL_ON LCD_TV_SUB_ON T7202 IC7201 24 32V 9 Output Q7402 05 2 ON OFF OFF IC5000 OFF 7 Blink Low voltage DC DC IC7301 P Transformer T7301 16V Output Q7403 1 1 2 3 16V 3 5 P2 A02 detect N OFF OFF detect Over voltage protection IC8001 TNPA5916 Ex 43 49DS630 series IC5420 3 3V 5V IC5400 3 3V IC5702 HDMI3 3V SUB5V SUB3 3V 1 1V 1 8V IC8100 IC8101 IC5701 04 TU1 8V SUB1 1V 1 5V SUB1 5V A The ...

Page 44: ...pplied LED blinks 3 times quick blink Ex 43 49DS630 series Power on Check if voltage F15V at No pin 1 3 5 of A02 connector before LED blinks Yes 15V A board Remove P2 connector Check if short circuit at pin 1 3 5 of A02 connector Yes Shorted A board P 16V No P board SRV 16V 12V IC5500 IC4900 A02 AMP 1 3 5 C8716 5420 5V SUB5V P2 IC8705 5400 A IC8000 Q7403 3 3V 16V 1 2 IC8100 3 1 1V 1 5V IC8101 SUB3...

Page 45: ...rd If the amplifier work abnormally may due to short circuit or overload the SOUND_SOS signal will go low level and be detected by IC8001 LED blinks 9 times Ex 43 49DS630 series Remove A12 connecter 16V Power on Does LED blinks again Yes 9 time blinks No Power on L R speaker speaker wire A12 IC4900 1 F15V AMP 3 A board SOUND_SOS IC8000 N SOS 9 Blink From P BOARD 5 A02 A 45 ...

Page 46: ...t work Fan_SOS signal will go high level and be detected by IC8001 LED blinks 11 times only DX9 series Before shutdown are all fans stopped Yes all stopped No only one fan is stopped Stopped fan A08 Fan_Vcc 1 3 A board Fan x6 Low Normal Fan_SOS all fan output low signal Low IC8000 11 Blink 16V 5 From P BOARD IC5901 F15V DC DC Normal A A02 46 ...

Page 47: ...of IC9000 A only DX series 12 Back End SOS inside of Peaks A 13 Emergency SOS A 16 GCEX_SOS IC4300 A only DX9 series 5 blinks problem with memory access IC8000 or IC8903 7 blinks problem with power line of SUB3 3V 10 blinks problem with initialization of FRC IC IC9000 12 and 13 blinks problem with IC8000 and software item 16 blinks problem with initialization of GCEX IC IC4300 IN THIS CASE A BOARD...

Page 48: ... from back side Check if voltage 24V 32V at SRV LED in P board No Replace P board No change LED keep lit Replace A board If entering the test mode Lit Confirm Clean the flat cable connection between A board and T CON board of LCD Panel Disconnect A15 16 19 connecter FFC cable to Panel Check if voltage SRV 12V PNL12V in A board Yes No Yes 24V 32V Replace LCD Panel Backlight part A A02 LCD Module T ...

Page 49: ... No Power On Power LED is off No blinking DS D series Check if the output of STB5V NG Disconnect A02 connecter Short check of STB5V line in A board Shorted Replace A board Replace A board OK Replace P board No Shorted 49 ...

Page 50: ...o below Disconnect PB4 connecter Short check the SRV 16V In A board A P A P LDP T 40 49 50DX T 58DX7 DX8 TX 55DX T 55DX600 DX650 Disconnect A02 connecter Short check the SRV 16V In A board No shorted Replace PB board Replace A board Replace A board Shorted No shorted No LDP board go to right DX9 P P2 A02 16V Shorted A Disconnect A02 connecter Short check the SRV 16V In A board Disconnect LDP3 conn...

Page 51: ...5 SOS Protection Circuit and Troubleshooting 1 time blink 51 ...

Page 52: ...the IC7800 does not work No Vcc or No BL_ON PWM signal or defect itself the IC7800 output BL_SOS signal to IC8001 LED blink 1 time Ex 43 49DS630 series SRV VLED D7401 02 Q7402 05 C7422 L7814 Q7804 L7813 3 58V Anode1 SRV VLED1 SRV VLED2 Back Anode2 LCD Module LCD Panel T7301 24V 32V D7408 09 C7423 8 9 8 9 Q7801 P4 LD1 LD TNPA5935 Q7403 LED Drive IC7800 Vcc 88V 7 Cathode1 1 Q7802 Cathode2 5 Q7803 LD...

Page 53: ...hort check between pin8 9 of LD1 and GND pin1 5 of LD2 and GND NG LD board Both OK Check if the voltage ALL OK of SRV VLED1 VLED2 pin 3 7 58V of LD2 before LED 1 blink 88V NG Short check between SRV VLED1 VLED2 and GND OK Shorted Panel Module Panel Module Power on Check if the voltage of SRV VLED pin 9 of LD1 before LED 1 blink NG P board OK 32V LD board VLED The DC level is different by the LCD p...

Page 54: ... BL ON 9 10 PB2 PB1 17 28 5 9 10 Anode LED Drive IC Cathode 15 Back light LCD Panel T CON board BL ON IC9000 IC Photo coupler TNPA6200 TNPA6199 P Power IC Photo coupler SRV BL ON PB3 1 1 P3 16V Sync control 2 4 6 BL_SOS 1 A03 P2 A02 1 5 1 5 16V 11 11 SUB ON A FRC Tr BL_SOS Low Normal IC8000 MTK SUB ON VLED The DC level is different by the LCD panel 54 ...

Page 55: ...PB2 before LED 1 blink NG Power off Disconnect PB1 and PB2 connector Short check between SRV VLED1 VLED2 and GND Shorted PB Module Both OK 58V 88V OK Panel Module Check if the voltage of SRV BL ON pin 5 of PB1 before LED 1 blink NG Check if the voltage of BL_ON pin 15 of A03 before LED 1 blink NG A board OK 3 3V OK 3 3V Panel Module Panel Module VLED The DC level is different by the LCD panel 55 ...

Page 56: ...dule C7502 24 32V D7502 C7512 Q7502 L7801 Anode 70V 3 Q7801 Q7803 Cathode 1 LED Drive IC7800 Vcc P2 light LCD Panel T CON board A A02 Low Normal 16V TNP4G572 SRV 16V 16V Q7510 SUB ON Low Normal 11 8 PWM 13 12 12 10 BL ON 1 2 3 1 3 5 8 2 BL_SOS PWM BL ON SUB ON IC8000 PEAKS VLED The DC level is different by the LCD panel 56 ...

Page 57: ... P3 connector Power on Check if the voltage A P 2 OK Panel Module 70V Yes Euro DS6 model only Go to troubleshoot of quick 3 time blink page check with that procedure after pin1 3 of P3 and GND OK several sec Short P board of SRV VLED pin 3 of P3 before LED 1 blink NG Short check between SRV VLED and GND Shorted Panel Module P board OK VLED The DC level is different by the LCD panel 57 ...

Page 58: ... 32inch A P 1 A P 1 India 1 Board 4 40inch A P 1 A P 1 A P LDP 2 43inch A P LD 2 A P LD 2 49inch A P LD 2 A P LD 2 A P 1 50inch A P 1 A P 1 55inch A P LDP 2 A P A P PB only TH 55DX640 TC 55DX700 58inch A P A P PB 1 3 65inch A P LDP A P PB A P PB 2 3 3 Except K GK boards 58 ...

Page 59: ...4 32V Dr LCD Panel Dr T CON DX6 7 LCD Panel Module 16V STB5V A IC8000 PNL12V Peaks MTK Resize IP conv P PB Dr LCD Panel Dr T CON DX900 LCD Panel Module 390V VLED LED Drive BL_ON 16V STB5V A IC8000 PNL12V Peaks MTK Resize IP conv Backlight Dr LCD Panel Dr T CON 390V 16V STB5V A IC8000 Peaks MTK Resize IP conv VLED1 2 LED Drive BL_ON PNL12V Backlight Dr LCD Panel Dr T CON The DC level is different b...

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