Related Manuals for Panasonic LCD-201803
Summary of Contents for Panasonic LCD-201803
- Page 1 Order No. ITD1803902GE LCD-201803 Model No. 2018 - LCD TV Ver. 1.0 Circuit Operation and Troubleshoot Panasonic Corporation 2018 Unauthorized copying and distribution is a violation of law.
- Page 2 Revision History Version Issued/Revised Revised content date Ver. 1.0 29th. Mar. 2018 First version...
- Page 3 INDEX INDEX 1.Board Layout 2.Video Signal Processing 2-1. Picture signal flow 2-2. Troubleshoot of Picture Problem 3.Power Supply 3-1. Power Board Structure 3-2. Stand by / Start up Operation 3-3. SOS Protection Circuit and Troubleshoot of Power Problem 4.Rear Cover Disassemble and Assemble...
- Page 4 1. Board Layout...
- Page 5 Board Layout -1 49/43/32/24FS***/F4**, 40FS***/F4** (Europe and Oceania) 50FS*** 65FX6**, 75FX7** 55/49/43/40FX6**/FX7** The presence of GK board is depend on the model and region. 40FS***/F4** (Latin and Asia)
- Page 6 Board Layout -2 ( A+P ) ( 32F400 ) AC input Speaker Speaker (T-CON) Not repairable, One of the panel module Board Name Function A-Board Main Board P-Board Power supply, Backlight Drive, Power key, Control key K-Board Remote Receiver, Power LED...
- Page 7 Board Layout -3 ( A+P ) ( 55FX700 ) JK8705 Bluetooth Module AC input Speaker Speaker WiFi Module (T-CON) Not repairable, One of the panel module Board Name Function Board Name Function A-Board Main Board K-Board Remote Receiver, Power LED P-Board Power supply, Backlight Drive GK-Board...
- Page 8 Board Layout -4 ( A+LDP ) ( 40F400 ) DC input, Connect the AC adapter LDP1 Speaker Speaker (T-CON) Not repairable, One of the panel module Board Name Function A-Board Main Board P-Board Power supply, Backlight Drive, Power key, Control key K-Board Remote Receiver, LED...
- Page 9 Board Layout -5 ( A+P+LDP ) ( 75FX750 ) LDP3 LDP2 LDP5 LDP4 JK8705 AC input Speaker Not repairable, Speaker One of the panel module (T-CON) WiFi Module Not repairable, Bluetooth One of the panel module Module Board Name Function Board Name Function A-Board...
- Page 10 Board Structure F4** FS5** FX6** FX7** (4K) (4K) 24inch 32inch 40inch (Oceania) (Europe/Oceania) A+LDP A+LDP +DC adaptor +DC adaptor (Asia/Latin) (Asia/Latin) 43inch 49inch 50inch A+P+LDP 55inch 65inch A+P+LDP 75inch A+P+LDP Except K, GK boards...
- Page 11 2. Signal Processing 2-1. Signal Flow...
- Page 12 Video/Audio Signal Process - 1 F4## series OPT_out IC4900 Audio AMP USB1 IC8000 IC68** Antenna (MT5561) terminal De-Modulation Resize IP conv. LVDS Data Component to LCD Panel HDMI1/2 The input terminals are different by the models or countries.
- Page 13 Video/Audio Signal Process - 2 FS### series (*)Headphone OPT_out WiFi (*)Bluetooth IC3400 or 4900 Audio AMP USB1/2 IC8000 TU690* Antenna (Peaks LD11 IC68** terminal TUNER MT5581P) De-Modulation Resize IP conv. LVDS Data Component to LCD Panel CI-slot (only Europe) HDMI1/2/3 (*) The input terminals are different by the models or countries.
- Page 14 Video/Audio Signal Process - 3 FX6## / FX700-740 series (*)Headphone OPT_out WiFi (*)Bluetooth IC3400 (Only FX700) Audio AMP USB1 USB2 IC8701 USB3 (USB HUB) IC8000 to LCD Panel (Only FX700) (Only FX700) (MT5811Q) IC68** TU670* Resize Antenna De-Modulation TUNER terminal IP conv.
- Page 15 Video/Audio Signal Process - 4 FX750-780 series (*)Headphone OPT_out WiFi Bluetooth IC8705 IC3400 Audio AMP (USB HUB) USB2 USB1 USB3(3.0) IC9000 to LCD Panel IC8000 (MFC19) (MT5811P) Frame Rate IC68** TU670* Resize Color space Antenna De-Modulation TUNER IP conv. terminal Convert ( V by One format ) Component...
- Page 16 2-2. Troubleshoot of Picture Problem...
- Page 17 Troubleshoot for Picture Problem <LCD Panel Test Mode> :When abnormal picture is displayed, troubleshoot by the test pattern in LCD module. If the picture is no problem, A board must be defective. If the picture is also abnormal, LCD panel module must be defective. Just in case, confirm the flat cable connection between A board and T-CON board.
- Page 18 Troubleshoot for Picture/Sound Problem <TV Self Test> Customers also can check the picture and sound by internal data. If the picture and sound is no problem, the reason of trouble is mostly not a TV. How to display : Menu HELP TV Self Test #)The test pattern and test sound are created by the main IC on the A board.
- Page 19 System Information Software version = 3003 – 10000 - 00200a060019 You can check some information in Help menu. (Main – STBY – FRC MENU Help System information ver. 3.003 , 1.000, 0.200a06, 0.0019 * FRC version is only for high grade models Status1 : model ID Status2 : 0028-123-0012c8 0035-034-651g LSI (Package-Release-data ver), AQ (Package-Release-data ver)
- Page 20 3. Power Supply 3-1. Power Board Structure...
- Page 21 Power Board Structure -1 ( P Board only ) < P > This block diagram is 2ch drive for backlight. The number of channel is different by the models (LCD panels). ( Models are refer to P.10 ) The VLED voltage is also different by the LCD panels. VLED Anode Power...
- Page 22 Power Board Structure -2 ( LDP Board only ) < LDP > ( only TH/TC-40F4##/40FS### , except Europe/Oceania ) VLED Anode AC Adaptor 19.5V 4 ch DC19.5V (Backlight) Cathode DCDC Drive BL-ON DCDC TV_SUB-ON DCDC STB5V...
- Page 23 Power Board Structure -3 ( P+LDP Boards ) ( only 50FS500** ) < P + LDP > VLED Anode 4 ch Cathode DCDC Drive (Backlight) Power BL-ON DCDC STB5V...
- Page 24 Power Board Structure -4 ( P+LDP Boards ) ( only 65FX6**/75FX7** ) < P + LDP > This LDP block diagram is 2ch drive for backlight of 65inch model. VLED1 1 ch Anode 4ch drive is for 75 inch models. The number of channel and VLED voltage are different by the LCD panels.
- Page 25 3-2. Stand by / Start up Operation The explanation is for the case of “Power Board Structure -1 (P board only, )”, ex.55FX600 but “LDP, P+LDP, P+PB” cases are basically same start up operation.
- Page 26 Voltage Distribution ( A+P Boards ) <A+P> Ex. 55FX600** series LCD Module (Each models are different pin allocation but operation is same.) LCD Panel 64V(*) convert Output T-CON VLED1,2 110-140V(*) board Drive PNL12V 44 - 51 BL_ON F15V 1 - 4 1 - 4 Output PNL12V...
- Page 27 Start up Operation-1 <A+P> Ex. 55FX600** series (Each models are different pin allocation but operation is same.) LCD Module Transformer Q7402/04 T7301 VLED1,2 L7815/16/ (*110-140V) Power 64V(*) Q7804/01 LCD Panel 64V(*) Output T7202 (light) (light) (DC/DC) (Back T-CON IC7201 Light) board Drive IC7800...
- Page 28 Start up Operation-2 <A+P> Ex. 55FX600** series < from AC plug in to : P board > ( TNPA6376** ) Anode1 ( PFC = OFF Q7402/04 T7301 ( Through ) D7403 D7217 AC100V: 140V ( OFF ) C7422 T7202 C7213/15 D7106 AC240V: 330V) Anode2...
- Page 29 Start up Operation-3 <A+P> < from AC plug in to : P board > When the TV is plugged in, the rectifier start to produce DC voltage which leads through PFC circuit directly to the power switches Q7301, Q7302. (PFC circuit IC7201 does not operate at this moment.) Besides this DC voltage is provided also for D7104, D7105 which provide start voltage to pin 1 of power supply IC 7301.
- Page 30 Start up Operation-4 <A+P> < from : A board > Ex. 55FX600** series LCD_TV_SUB_ON IC8000 IC5000 STB3.3V IC7405 3.3V STB5V Signal REMOTE Processing 3.3V KEY3 POWER LED_on Switch (Each models are different pin allocation but operation is same.) Standby (It can receive only Power SW) (It can receive Power SW, Remote, Viera Link and so on) North America ( Automatically )
- Page 31 ( Reference ) Start up Operation-4 <A+P> < from : A board > To WiFi adaptor JK8600 JK8705/8605 The power line for LAN/WiFi is supplied from Standby power. IC8706 5V for *) If the setting of “Power on by WiFi Apps”, etc.
- Page 32 Start up Operation-5 <A+P> < from : A board > The STB5V from pin7 of connector P2 is applied to the Analog ASIC (IC5000) for supplying power to the Main CPU (IC8000) on the A board. The Analog ASIC (IC5000) converts the STB5V to STB3.3V.
- Page 33 Start up Operation-6 <A+P> < from : P/LD board > Ex. 55FX600** series L7816 Anode1 Q7801 SRV-VLED ( TNPA6376** ) SRV-VLED1 ( PFC = ON T7301 D7217 D7403 AC100V: 380V SRV-VLED2 Q7402/04 T7202 C7213/15 C7422 L7815 D7106 AC240V: 380V) Anode2 Rectifier Cathode1 Q7804...
- Page 34 Start up Operation-7 <A+P> < from : P board > When the power board receives the TV_SUB_ON signal from IC8000 via pin 9 of connector P2, it outputs 2 different voltages: 16V to the A board on pins 1, 2, 3 and 4 of connector P2. 64V(*) to the LED drive part.
- Page 35 Start up Operation-8 <A+P> < : A board (SUB voltage) > Ex. 55FX600** series 3, 7 VLED1/2(*)110-140V IC7800 DCDC Drive IC8000 64V(*) SRV-16V Q7402 LCD_TV_SUB_ON T7202 64V(*) DC/DC Output IC7201 STB3.3V IC5000 STB5V IC7503 Transformer ANALOG F15V DC/DC T7301 ASIC IC7301 Output Q7403/05...
- Page 36 Start up Operation-9 <A+P> < : A board (SUB voltage) > The 16V(F15V) from the P board via pin1-4 of connector A02 is applied to Analog ASIC IC5000 and ICs (Voltage regulators) on the A board to generate the SUB-Voltages used for signal processing operation.
- Page 37 Start up Operation-10 <A+P> < : A board (PNL voltage) > LCD Module T-CON Back Light 1, 5 3, 7 44 - 51 IC5260 VLED1/2(*)110-140V PNL12V IC7800 DCDC Panel_VCC_ON Drive IC8000 64V(*) BL_SOS BL_ON Q7402 LCD_TV_SUB_ON 64V(*) T7202 Output DC/DC IC7201 STB3.3V IC5000...
- Page 38 Start up Operation-11 <A+P> < : A board (PNL voltage) > The F15V is also used to generate the PNL-Voltage on A board. IC8000 outputs the Panel VCC On signal. IC5260 starts generating the PNL12V by this signal. The PNL12V is provided to T-con circuit of the LCD Module.
- Page 39 Start up Operation-12 <A+P> < : P board ( backlight drive ) > Ex. 55FX600** series L7816 Anode1 Q7801 SRV-VLED ( TNPA6376** ) SRV-VLED1 ( PFC = ON T7301 D7217 D7403 AC100V: 380V SRV-VLED2 Q7402/04 T7202 C7213/15 C7422 L7815 D7106 AC240V: 380V) Anode2 Rectifier...
- Page 40 Reference: Voltage Distribution ( A+P+LDP Boards ) <A+P+LDP> only TH-50FS500* series LCD Module (Ex. TNP4G631**) LCD Panel LDP1 LDP2 64V(*) 15,16 convert VLED(*) Output T-CON board Drive PNL12V LDP2 1 - 4 BL_ON F16V 1,3,5 Output PNL12V TV_SUB_ON 3.3V 1.5V POWER_ON 1.1V STB5V...
- Page 41 Reference: Voltage Distribution ( A+P+LDP Boards ) <A+P+LDP> only 65FX6**/75FX7** series LCD Module (Each models are different pin allocation but operation is same.) LCD Panel LDP5/LDP6 LDP3 64V(*) 19,20 convert VLED1/2(*) Output T-CON board Drive PNL12V (Ex. TNPA6375** for 65FX6**) LDP2 44 - 51 BL_ON...
- Page 42 Simple Power On Sequence (F Series) < F4 series > (*) The DC level is different by the LCD panel. ( Plug in ) AC Plug in STB5V output STB5V (form P to A) Power On Standby Power Off Standby / Power on Power LED Red Power LED off Power LED...
- Page 43 Simple Power On Sequence (FX/FS Series) < FX/FS series > Also 16V is necessary before Power LED. (*) The DC level is different by the LCD panel. AC Plug in ( Plug in ) STB5V (form P to A) STB5V output Power on TV_SUB_ON signal SUB_ON (from A to P)
- Page 44 3-3. SOS Protection Circuit and Troubleshoot of Power Problem...
- Page 45 LED Blinking Summary When an abnormality occurs in the unit, the “SOS Detect” circuit is triggered and the TV shuts down. Shut down means that the unit turns off the TV_SUB_ON signal. The power LED on the front panel will flash a pattern indicating the circuit area that has detected an abnormality.
- Page 46 Protection Circuit of A+P type <A+P> <Protection Circuit> Back Light LCD Module T-CON 1, 5 3, 7 44 - 51 IC5260 VLED1/2(*)110-140V PNL12V IC7800 IC8000 Panel_VCC_ON DC/DC Drive IC3800 N SOS SOUND_SOS 9 Blink 64V(*) BL_SOS 1 Blink N SOS BL_ON Q7402 LCD_TV_SUB_ON...
- Page 47 Troubleshooting for LED Blinking ( 1 time blink ) for A+P type -1 <A+P> LED blinks Detail error Board may defect BL_SOS (LED driver) Panel / P (*)VLED : The DC level is different by the LCD panel. If the IC7800 detects 1.abnormal current of backlight LEDs ( = Backlight LED broken or Low(No) VLED voltage ) 2.abnormal DC/DC power supply of IC7800 (does not rise up the VLED voltage ) or the IC7800 does not work (No Vcc or No BL_ON/PWM signal or defect itself),...
- Page 48 Troubleshooting for LED Blinking ( 1 time blink ) for A+P type -2 <A+P> Ex. 55FX600* series Connect P3 connector. (Power off) Power on. Disconnect P3 connectors. Check if the voltage Panel Module Short check between Both of SRV-VLED1/2(pin1,5 of P3) over100V( pin3,7 of P3 and GND.
- Page 49 Protection Circuit of A+P+LDP type <A+P+LDP> <Protection Circuit> Back Light LCD Module T-CON LDP5/LDP6 44 - 51 IC5260 VLED1/2(*) PNL12V IC7800 IC8000 (Ex. TNPA6375**) Panel_VCC_ON DC/DC Drive IC3400 N SOS SOUND_SOS 9 Blink LDP3 LDP2 DSP/AMP BL_SOS 1 Blink N SOS 19,20 BL_ON 64V(*)
- Page 50 Troubleshooting for LED Blinking ( 1 time blink ) for A+P+LDP type -1 <A+P+LDP> LED blinks Detail error Board may defect BL_SOS (LED driver) Panel / LDP / P (*)VLED : The DC level is different by the LCD panel. If the IC7800 detects 1.abnormal current of backlight LEDs ( = Backlight LED broken or Low(No) VLED voltage ) 2.abnormal DC/DC power supply of IC7800 (does not rise up the VLED voltage )
- Page 51 Troubleshooting for LED Blinking ( 1 time blink ) for A+P+LDP type -2 <A+P+LDP> Ex. 65FX600* series (Power off) Connect LDP5 and LDP6 Disconnect LDP5 and LDP6 connectors. Power on. connectors. Short check between Check if the voltage Panel Module Both OK pin3 of LDP5 and GND, of SRV-VLED1, VLED2 (pin 1 of...
- Page 52 Troubleshooting for LED Blinking ( Quick 1 / 3 time blink ) LED blinks Detail error Board may defect Quick 1 / 3 Power on problem (No F15V/SUB3.3V/SUB1.5V voltage) (only for Asia/Latin FS5**) F15V(16V) is supplied from P board. If the F15V /SUB voltage is not supplied LED blinks quickly 1 or 3 times.
- Page 53 Troubleshooting for LED Blinking ( 9 time blink ) LED blinks Detail error Board may defect Audio amplifier: SOUND_SOS A/Speaker Audio amplifier is sourced power F15V from P board. 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.
- Page 54 Troubleshooting for LED Blinking ( 2/4/7/10/13/16 time blink ) LED blinks Detail error Board may defect Quick 2 / 4 Memory (eMMC: IC8900) read problem A ( eMMC / Nand Flash ) (only Asia/Latin FS5**) No voltage SUB3.3V detected FRC_SOS (Initialization of IC9000) A (IC9000) (only FX750-780 series)
- Page 55 Troubleshooting for No Picture and No OSD (Power LED is lit = No blinking) < F4/FS/FX series > Refer to the block diagram of “Troubleshooting for LED Blinking (1 time blink )” page Patterns are displayed Try the “LCD Panel Replace A board Test Mode”...
- Page 56 Troubleshooting for No Power On (Power LED is off = No blinking) -1 < F4 series > Disconnect A10 connecter. Power on check few times. Replace K board (because we can’t check Power on the power LED) Check if the output of Replace A board STB5V.
- Page 57 Troubleshooting for No Power On (Power LED is off = No blinking) -2 Both of STB5V and 16V are necessary before lighting power LED. < FX/FS series > ( refer to page 43 of “Simple Power On Sequence (FX/FS Series)” ) Disconnect A10 connecter.
- Page 58 4. Rear Cover Disassemble and Assemble...
- Page 59 Rear Cover Disassemble / Assemble -1 From design concept, the rear cover structure for some model is changed. The screws are decreased and there are hooks on the rear cover. Target model : 65/55/49FX700-73# , 740 for Oceania ( 75/43 inch is same as previous model) <Disassemble>...
- Page 60 Rear Cover Disassemble / Assemble -2 How to remove the bottom screws Lay down on the table Bottom Screw Type Example1 Use ratchet type driver/wrench under Example2 50mm Shift to the edge of the table M3x8 (Head Hexagon) Example3 Shift Table Insert objects that become step between unit and the table *) The product pictures and...
- Page 61 Rear Cover Disassemble / Assemble -3 From design concept, the rear cover structure for some model is changed. The screws are decreased and there are hooks on the rear cover. Target model : 49/43FX6## ( other inch is same as previous model) <Disassemble>...