Panasonic TC-L19C30 Technical Manual Download Page 53

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SOUND_SOS

IC8000

Peaks

sLD2

uCOM

9 blinks

IC4900

Audio

AMP

AB22

BL ( Back Light )_SOS

IC5000

REG

(STB3.3V)

RESET

AA25

P15V

7 blinks

AB25

Y22

4 blinks

STB3.3V

A09

LCD Panel

SUB3.3V

1 blinks

< SOS signal >

A Board ( TNPH0926 )

Peaks sLD2

13 blinks: Emergency

(communication between standby and main CPU)

14 blinks: IROM_SOS (Peaks-ROM)

12 blinks : N/A (Not Applicable)

3,10 blinks : No use

Protection Circuit (TC-L42E3)

Summary of Contents for TC-L19C30

Page 1: ...sonic National Training Panasonic Service and Technology Company 2011 LCD TV Technical Guide 2011 LCD HD FHD TV TC L42D30 TC L37DT30 TC L32DT30 TC L42E30 TC L42E3 TC L37E3 TC L32E3 TC L19C30 Applies to models TTG110708JM ...

Page 2: ...vice a product Products powered by electricity should be serviced or repaired only by experienced professional technicians Any attempt to service or repair the product or products dealt with in this service information by anyone else could result in serious injury or death Copyright 2011 by Panasonic Service and Technology Company All rights reserved Unauthorized copying and distribution is a viol...

Page 3: ...river 17 Protection Circuit TC L42E3 53 TC L42D30 Board Layout 18 Protection Circuit TC L37E3 L32E3 and TC L32X30 54 TC L42D30 Connectors 19 Protection Circuit TC L42E30 55 TC L42D30 P Board 20 Nile T CON SOS Detection 56 TC L42D30 A Board 21 Protection Circuit TC L42U30 57 TC L42D30 LD Board LED Driver 22 Protection Circuit TC L37U3 58 TC L37DT30 Standby Power 1 23 IC4700 Block Diagram 60 TC L37D...

Page 4: ... Stand by Operation B Power On Operation C Voltage Distribution 3 Signal process Circuit A Video Signal B Audio Signal 4 SOS Detect 5 Service Notes A Service Mode B SRV TOOL C Self check 6 Troubleshooting 7 Data Copy Function SD card 7 Glossary ...

Page 5: ...5 New Panel for 2011 IPS LED LCD ...

Page 6: ...6 Highlights ...

Page 7: ...7 The New World of Smart VIERA ...

Page 8: ...8 Concept of the IPTV World ...

Page 9: ...9 Evolution of the IPTV World and Its Future Expansion ...

Page 10: ...10 2D 3D Conversion ...

Page 11: ... FHD 3D TC L37DT30 TC L32DT30 D Series FHD TC L42D30 E30 Series FHD TC L42E30 E3 Series FHD TC L42E3 TC L37E3 TC L32E3 U30 Series FHD TC L42U30 U3 Series FHD TC L37U3 TC L32U3 X30 Series HD TC L32X30 C30 Series HD TC L19C30 C3 Series HD TC L32C3 TC L24C3 ...

Page 12: ...LAN Adaptor Included 3D Image Viewer 2 DLNA VIERA Link 4 HDMI Terminals 3 USB Terminals Game Mode PC Input Terminal Link TC L37DT30 TC L32DT30 ECO Others Energy Star Eco Function Flush Design Swivel 3D Eyewear Included One pair of 3D eyewear included Wireless LAN Adaptor Image 1 ISF and IMAGING SCIENCE FOUNDATION are trademarks owned by Imaging Science Foundation Inc This function is exclusively f...

Page 13: ...el Yes IPS Alpha Panel Motion Picture Pro Technology 240Hz Motion Picture Pro5 120Hz Motion Picture Pro4 120Hz Motion Picture Pro4 120Hz Motion Picture Pro4 24p Smooth Film 3D 2D 24p Smooth Film 24p Smooth Film Yes Dynamic Contrast 5 000 000 1 5 000 000 1 4 000 000 1 3 000 000 1 20000 1 20000 1 20000 1 2000000 1 20000 1 Clear Panel Yes Yes Yes Fine Black Panel Fine Black Panel Fine Black Panel Fin...

Page 14: ... Yes DLNA Yes Yes Yes yes Yes Yes Wi Fi Ready Yes Yes Yes yes Yes Wireless LAN Adaptor Included Yes Wireless LAN Adaptor Capable Wireless LAN Adaptor Capable Wireless LAN Adaptor Capable Wireless LAN Adaptor Capable VIERA Link Yes Yes Yes Yes Yes Yes Yes Yes Yes HDMI Terminals 4 4 4 4 3 3 3 3 2 32C3 1 24C3 USB Terminals 3 3 2 2 1 1 Yes Game Mode Yes Yes yes Yes Yes Yes yes PC Input Terminal Yes Ye...

Page 15: ...n Board non serviceable exchanged for service KA Board Remote Receiver LED Cat s eye P Board Power supply non serviceable exchanged for service S Board Power switch V Board 3D IR Transmitter TC L37DT30 Board Layout P A LED DRIVER T CON ...

Page 16: ...16 TC L37DT30 Connectors ...

Page 17: ...Cable provides 10 blink of the power LED after power On CN 901 To P4 Pin Voltage 1 24V 2 24V 3 24V 4 24V 5 24V 6 GND 7 GND 8 GND 9 GND 10 GND 11 BL_SOS 12 BL_ON 13 GND 14 PWM CN 709 To A16 Pin Voltage 1 PANEL_12V 2 PANEL_12V 3 PANEL_12V 4 PANEL_12V 5 GND 6 GND 7 GND 8 GND CN 902 or CN903 To PANEL LEDs PIN 1 2 3 4 5 6 7 8 9 10 Volt 67V NC 10V 9V 8 3V 6 7V 8 3V 10V NC 67V CN 903 A disconnected conne...

Page 18: ... serviceable Exchanged for service KA Board Remote Receiver LED CAT s eye P Board Power Supply Non serviceable Exchanged for service LD Board LED Driver Non serviceable Exchanged for service S Board Power switch TC L42D30 Board Layout P A LD T CON ...

Page 19: ...onnectors P A P2 A15 A10 Key scan To Speakers STB5V F15V SUB ON Backlight ON BL_SOS PWM Key To LED Backlight KA KA10 Power LED Remote receiver LD P4 P1 A02 S S10 To Panel Drive A12 24V PWM BL_ON BL_SOS TIMING CONTROL ...

Page 20: ...P needed CN P2 CN P4 CN P2 P Board Pin Voltage 1 NC 2 GND 3 PWM 4 BL_ON 5 BL_SOS 6 MAIN_ON 7 KEY 8 RLY 9 SUB_ON 10 GND 11 16V 12 16V 13 16V 14 GND 15 5V CN P4 P Board Pin Voltage 1 PWM 2 GND 3 BL_ON 4 BL_SOS 5 GND 6 GND 7 GND 8 GND 9 GND 10 24V 11 24V 12 24V 13 24V 14 24V ...

Page 21: ...Voltage 1 5V 2 GND 3 16V 4 16V 5 16V 6 GND 7 SUB_ON 8 RLY 9 KEY1 10 MAIN_ON 11 BL_SOS 12 BL_ON 13 PWM 14 GND 15 NC CN A10 A Board Pin Voltage 1 RED_LED_ON 2 NC 3 STB3 3V 4 AI SENSOR 5 REMOTE 6 7 SUB3 3V 8 Key3 STB5V 9 NC 10 GND CN A02 CN A15 TP 12V CN A10 CN A12 CN S10 S Board Pin Voltage 1 Key 2 GND ...

Page 22: ...tage 1 24V 2 24V 3 24V 4 24V 5 24V 6 GND 7 GND 8 GND 9 GND 10 GND 11 BL_SOS 12 BL_ON 13 GND 14 PWM T CON LED DRIVER CN LD2 CN LD4 A disconnected connector LD2 provides 1 blink of the power LED after 9 seconds of power On A disconnected connector LD4 provides 1 blink of the power LED after 7 seconds of power On 12V Test Point L V D S C A B L E A disconnected LVDS Connector provides 10 blink of the ...

Page 23: ...he STB5 8V is regulated to STB5V and applied to the application specific integrated circuit ASIC IC5000 for conversion to STB3 3V The STB3 3V energizes IC8001 to prepare the internal microprocessor for program execution The 3 3V from the voltage regulator is also applied to the remote control receiver and power LED on the K board through Pin 3 of connector A10 KA10 If the STB5 8V is missing the TV...

Page 24: ...24 TC L37DT30 Standby Power 2 ...

Page 25: ...transistor that provides a ground connection to the photo coupler When the photo coupler turns on the switched mode supply goes in operation to create the 16V or and DC24V supplies On the A Board the 16V is regulated to numerous voltages to power the A Board The DC24V is applied to the Tcon LED drive board to power the circuit that controls the light output of the backlight LEDs However the backli...

Page 26: ...tch 4 5 13 12 RL101 RL102 9V SUB9V ANALOG VIDEO SW 5V IC5900 IC3001 IR for 3D IC5901 LEDDRV_5V 2 5 A30 5V IC5420 SD 1 8V 3 3V 3 3V IC5400 SUB_AI_3 3V 3 3V IC8706 HDMI3 3V 1 5V IC5440 USB SW USB 1 2V 1 5 IC8100 USB5V SUB1 2V SUB1 5V DCDCEN 16V KA board Remote Receiver Power LED V board 3D IR STB5V 16V 16V 16V 16V 5V IC5205 10 P4 14 24V LED Driver LCD Panel 11 6 ...

Page 27: ...SIC IC5000 besides being applied to the CPU is also applied to the remote control receiver and the power LED on the K board through connector A1 K1 pin 3 When the CPU receives 3 3V and 1 2V it outputs the SUB ON command that is provided to the P board This command triggers the switches on the P board and only lasts approximately 15 seconds The function of this command is to turn on the circuit tha...

Page 28: ...28 TC L37DT30 Power On Operation ...

Page 29: ...y to the power supply to turn on a transistor that provides a ground connection to the photo coupler When the photo coupler turns on the switched mode supply goes in operation to create the 16V or and DC24V supplies On the A Board the 16V is regulated to numerous voltages to power the A Board LCD Panel and T CON board The DC24V is applied to the LD Board to power the circuit that controls the ligh...

Page 30: ...30 TC L37DT30 Voltage Distribution ...

Page 31: ...n of the A Board KA Board and S board Some of these voltages are monitored by IC5000 and IC8000 for their presence If one of the monitored voltages is missing a shutdown is triggered and a blink code generated The 3D_LED_ON command of IC8000 turns on the LED_DRV5V DC DC converter to power the 3D IR Transmitter used to synchronize the 3D glasses A SUB9V source is also created by a DC DC converter l...

Page 32: ...32 TC L42E3 LED Backlight Control ...

Page 33: ... PWM is delivered to the LED drive circuit via pin 1 of connector P4 to control the brightness of the LEDs The PWM signal is dependent on user settings and picture content An artificial intelligence circuit is used to manipulate the PWM signal for picture quality and reduced power consumption The LED drive circuit is responsible for controlling the amount of current that passes through the LEDs To...

Page 34: ...34 TC L37E3 LED Backlight Power Circuit ...

Page 35: ...t on user settings and picture content An artificial intelligence circuit located inside IC8000 is used to manipulate the PWM signal for picture quality and reduced power consumption IC9500 is a boost regulator Using the PWM signal it controls the amount of voltage and current applied to the upper and lower Panel s backlight LEDs To avoid catastrophic failures when the LED backlight control circui...

Page 36: ...36 TC L42D30 LED Backlight Power Circuit Waveform to one of the LED backlight connections ...

Page 37: ...er settings and picture content An artificial intelligence circuit located inside IC8000 is used to manipulate the PWM signal for picture quality and reduced power consumption IC9500 and 9600 are boost regulators Using the PWM signal they control the amount of voltage and current applied to the upper and lower backlight LEDs of the panel To avoid catastrophic failures when the LED backlight contro...

Page 38: ... generates 16V or P15V and DC24V P15V is provided to the A board to generate the sub voltages used by the signal process circuit The sub voltages are confirmed by ASIC IC5000 Backlight ON After confirming the presence of the sub voltages the Backlight ON command is applied to the P board and subsequently the LCD panel to turn on the circuit that controls the backlight Panel STB ON VCC ON On the ot...

Page 39: ...39 TC L37DT30 Video Input and Process ...

Page 40: ...te or S Video signal is now the same as a digital 480i component signal If the incoming video is in the 480p 720P 1080i or 1080p format the Y Pb and Pr signals undergo A D analog to digital conversion only Digital television reception of the tuner is output in the form of an IF Intermediate Frequency signal also known as the transport stream The transport stream from the tuner enters the VSB I F I...

Page 41: ...1 TC L37DT30 Eyewear Control Signal Output waveform to IR Transmitter V Board 3D Mode Only Connector A30 Pin 1 2 30Vdc Pin 3 2 30Vdc Pin 5 2 30Vdc Pin 7 2 30Vdc Voltages are always present 2D or 3D mode ...

Page 42: ...eyewear sync signal developed inside the LCD panel is output to the A board via pin 42 of the LVDS connector A15 On the A Board it enters IC5901 where it is used as a reference to create the signal needed to synchronize the 3D glasses The output signal of IC5901 is provided to the LEDs of the V Board for infrared transmission to the eyewear To turn on the IR transmitter IC8000 outputs the 3D_LED_O...

Page 43: ...ssing are performed by the Main CPU Signal Processor IC IC8000 The digital audio signal from IC8000 is output to the optical audio output jack as PCM Dolby Digital Serial data is output to the audio amplifier IC IC4900 The output of IC4900 is connected to the speakers ...

Page 44: ...44 SOS Detect Shutdown ...

Page 45: ...he abnormality is detected Protection circuits are incorporated in the unit to prevent the failure of a single circuit or component from creating catastrophic damage A shutdown condition occurs when a there is an over voltage a short or a drop in any of the voltage lines Blinking times Contents Check Point 1 BACKLIGHT_SOS P BOARD LCD Panel 7 SUB 3 3V SOS A BOARD 9 SOUND SOS A BOARD SPEAKER 10 LP1 ...

Page 46: ...46 TC L37DT30 Shutdown Circuit Block Diagram ...

Page 47: ...ARD 7 SUB 3 3V_SOS A BOARD 9 SOUND SOS A Board SPEAKER 10 ZWEI2 SOS LCD PANEL 13 EMERGENCY_SOS A BOARD When an abnormality is detected the protection circuit resets the unit to the standby mode The A board microprocessor causes the power LED to blink a number of times The number of blinks points to the circuit where the abnormality is detected ...

Page 48: ... 3V LED_SOS No shutdown AC24 IC5901 LED Drive 1 20 19 13 blinks Emergency communication between standby and main CPU 14 blinks IROM_SOS Peaks ROM SOS signal A Board TNPH0958 Panel T CON_SCL SDA Communication error 10 blinks T CON_IC LP1 T CON_IC LP1 12 blinks N A Not Applicable ZWEI2_IC TC ZWEI2_IC TC 32 37DT30 42D30 3 blinks Not use inside of LCD module A15 46 47 Protection Circuit TC L32 37DT30 ...

Page 49: ...er ON yes Is there approx 3V at pin 10 of connector A15 after power ON yes Is there 24V at pin 10 14 of connector P4 after power On yes Panel Is there 16V at pin 4 5 and 6 of connector P2 after power ON yes Backlight On signal No No P board No A board No P board Without 16V the backlight does not work ...

Page 50: ...e SUB3 3V at pin 7 of connector A10 before shutdown yes yes Replace the A board Disconnect connector A10 and using a jumper wire momentarily connect pin 8 to pin 10 of the socket Does the unit power up Replace the KA board Replace A board No No Yes Jumper across pins 8 and 10 to simulate the power switch when connector A10 is disconnected ...

Page 51: ...51 Nine Blinks of the Power LED TC L37DT30 Start Replace the A board Disconnect each speaker one at a time and power the unit on Does the unit power up and stay on No Replace the bad speaker Yes ...

Page 52: ... Communication problem between IC 8000 Peaks LDA3 and IC5000 STB micom Replace the A board 14 Blinks IC8000 Peaks LDA3 and IC8902 Peaks EEPROM read error Replace the A board Is there 12V present on the TCON board Yes Replace the LCD Panel No Is there A short of the 12V line No Replace the A board Isolate the short to either the A board or TCON ...

Page 53: ...B3 3V RESET AA25 P15V 7 blinks AB25 Y22 4 blinks STB3 3V A09 5 LCD Panel SUB3 3V 1 blinks 20 19 SOS signal A Board TNPH0926 Peaks sLD2 13 blinks Emergency communication between standby and main CPU 14 blinks IROM_SOS Peaks ROM 12 blinks N A Not Applicable 3 10 blinks No use Protection Circuit TC L42E3 ...

Page 54: ...el SUB3 3V 1 blinks 20 19 SOS signal A Board TNPH0906 A Board TNPH0907 Peaks sLD2 13 blinks Emergency communication between standby and main CPU 14 blinks IROM_SOS Peaks ROM 12 blinks N A Not Applicable Fault 18 17 Y25 T CON_DCDC_SOS 3 blinks 10 blinks No use A14 AVDD12 6 DVDD2 5V 11 13 72 76 IC4150 DC DC Fault 14 TC board Protection Circuit TC L37E3 L32E3 and TC L32X30 ...

Page 55: ... STB3 3V A09 5 LCD Panel SUB3 3V 1 blinks 20 19 SOS signal A Board TNPH0906 Peaks sLD2 A15 46 Panel T CON_SCL SDA Communication error inside of LCD module ＺＷＥＩ2 ＺＷＥＩ2 13 blinks Emergency communication between standby and main CPU 14 blinks IROM_SOS Peaks ROM 12 blinks N A Not Applicable Y25 47 10 blinks 3 blinks Not use Protection Circuit TC L42E30 ...

Page 56: ...DVDD2 5V 9 T CON_SOS Communication error with T CON IC Double speed type 10 SUB3 3V_SENSE Abnormal SUB3 3V 11 T CON DCDC_SOS T CON DCDC error 12 SOUND_SOS Audio AMP error Nile T CON SOS Detection blinks SOS 19C30 24C3 3232C 32LX34 32C3 32U3 37U3 42U30 1 BL_SOS 2 SUB1 8V_SOS 3 SUB1 2V_SOS 4 POWER_SOS 9 T CON_SOS 10 SUB3 3V_SENSE 11 T CON DCDC_SOS 12 AOUND_SOS ...

Page 57: ...TNPH0904 SUB3 3V 10 blinks Inverter SOS Backlight SOS A21 TC board 24KEC_I2CCLK1 DATA1 Communication error U30 model only 9 blinks A03 5 P IC9006 ZWEI2 Signal process IC9006 ZWEI2 Signal process M5 Analog output 2 3 blinks 17 M22 STB3 3V SUB3 3V 46 47 U6 TC05 5 6 3 blinks 2 blinks 29 28 SUB1 8V STB3 3V 30 SUB1 2V STB3 3V 31 27 Protection Circuit TC L42U30 ...

Page 58: ... signal 1 Nile T CON IC2106 Audio AMP 12 blinks A Board TNPH0904 SUB3 3V 10 blinks Inverter SOS Backlight SOS A22 LCD module A03 5 P M5 Analog output 2 3 4 11 blinks 17 M22 STB3 3V SUB3 3V U6 AVDD12 6 DVDD2 5V 4 blinks 11 13 72 76 Normal all input L output L IC4150 DC DC Fault SUB1 8V STB3 3V 27 11 blinks 14 Protection Circuit TC L37U3 ...

Page 59: ...59 DVDD2 5V AVDD12 6V STB5V AVDD12 6 Q5614 Q5602 F16V VON13V D5674 D5673 D5672 To pin 29 of IC4700 4 blinks SOS signal 2 A Board TNPH0904 Protection Circuit TC L37U3 ...

Page 60: ...60 IC4700 INPUT OUTPUT Pin31 Pin27 Pin28 Pin29 Pin30 Pin4 L L L L L 0 1V H L L L L 3 3V X H L L L 2 55V X X H L L 1 95V X X X H L 1 35V X X X X H 0 75V IC4700 Block Diagram ...

Page 61: ...e control SERVICE ADJUST WB ADJ OPTION SRV TOOL Picture Adjustment White Balance Adjustment Option Setting Service Tool ADJUST CONTRAST 0000 YMAX Main Item Sub Item Data Key command 1 button Main items Selection in forward direction 2 button Main items Selection in reverse direction 3 button Sub items Selection in forward direction 4 button Sub items Selection in reverse direction VOL button Value...

Page 62: ... blinks indication From the left side Last SOS before Last two occurrences before last 2nd occurrence after shipment 1st occurrence after shipment This indication except the 2nd and 1st occurrence after shipment will be cleared by reset To exit Disconnect the AC cord from the wall outlet How to Enter the Service Mode s SRV TOOL S O S H I S T O R Y ...

Page 63: ...I SW OK Self Check XXXXXX XXXXXX Copyright Panasonic Corporation 2011 Panasonic ROM CHECK How to access 1 Self check display only While in TV reception mode press the VOLUME button on the main unit and simultaneously press the OK button on the remote control for 3 seconds or more 2 Self check display and forced to factory shipment setting While in TV reception mode press the VOLUME button on the m...

Page 64: ...64 Troubleshooting Picture Problem Troubleshooting Picture Problem ...

Page 65: ...65 Horizontal Area Picture Problem ...

Page 66: ...66 Vertical Area Picture Problem ...

Page 67: ...67 Vertical Line Bar Problem ...

Page 68: ...68 Horizontal Line Picture Problem ...

Page 69: ...69 Non uniform Color Picture Problem ...

Page 70: ...70 Many Vertical Lines Picture Problem ...

Page 71: ...71 OSD Problem ...

Page 72: ...72 Strange Color Problem ...

Page 73: ...pattern generator may be used to determine whether the symptom is the result of a defective A board or panel The test pattern is displayed as follows Start the Panel Free Run Feature Did the test patterns display correctly Panel A Board All video sources contain distortion No Yes ...

Page 74: ...he A board copy the EEPROM data to the A board User settings data including hotel mode settings data such as channel scan adjustment data and factory preset data can be copied to and from an SD card B Hotel Copy the data when installing a number of units in hotel or any facility When installing a number of units in a hotel or any facility the data in the master TV can be copied to a SD card and th...

Page 75: ...dow point to New and then click text document A new file is created by default New Text Document txt 3 Right click the new text document that you ve just created and select Rename 4 Change the name and extension of the file to the following file name for copying to the SD card and press ENTER File name a For Board replacement boardreplace pwd b For Hotel hotel pwd Note Please make only one file to...

Page 76: ... completion of copying to the SD card remove the SD card from the TV 5 Turn off the TV Note The following new folder will be created in the SD card from the TV a For Board replacement user_setup b For Hotel hotel Panasonic Data Copy Board Replacement Input Password Panasonic Data Copy Board Replacement Input Password Panasonic Data Copy Board Replacement Copy TV to SD Card Please for a while Pleas...

Page 77: ...deleted after copying Limited one copy b For Hotel The data will not be deleted and can be used for other TVs 5 Turn off the TV Note 1 Depending on the failure of the A board the data copy function for board replacement may not work 2 This function can be effective among the same model numbers Panasonic Data Copy Board Replacement Input Password Panasonic Data Copy Board Replacement Copy SD to TV ...

Page 78: ...st Ratio 2000000 1 Both high contrast and energy saving efficiency have been achieved in the IPS LED LCD TV by combining the IPS panel which is known for its wide viewing angle with a bright energy efficient LED backlight Even dark scenes like night skies are naturally rendered with delicate shades of black The Intelligent Scene Controller further boosts the image quality Energy Saving Mode The en...

Page 79: ...lot Watch and show your photos right after you take them Simply insert an SD card into VIERA to display photos on the large screen You can also choose the background music and display effects It s much more fun when you can view them on a large screen HDTV with family and friends in 1920 x 1080 pixel high definition and a wide 16 9 aspect ratio VIERA LinkTM VIERA Link allows the interlinked operat...

Page 80: ...dia Player 12 is required Media content that can be played back using DLNA SD card or USB memory Certain JPEG SD Video AVCHD MP4 files MKV files MPEG 2 files MP3 files AAC files and LPCM files can be shared using the DLNA feature Please see the Owner s Manual for the additional requirements USB Port You can connect flash memory wireless LAN adapter keyboard or mass storage devices to the USB ports...

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