Panasonic TC-L42D30 Technical Manual
Lcd hd/fhd tv
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Also See for TC-L42D30:
- Owner's manual (196 pages) ,
- Service manual (73 pages) ,
- Specifications (2 pages)
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Summary of Contents for Panasonic TC-L42D30
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Page 1: 2011 Lcd Tv Specifications
2011 LCD TV Technical Guide Title Page1 2011-LCD HD/FHD TV Applies to models: TC-L42D30 TC-L37DT30 TC-L32DT30 TC-L42E30 TC-L42E3 TC-L37E3 TC-L32E3 TC-L19C30 Panasonic National Training Panasonic Service and Technology Company TTG110708JM... -
Page 2: 2011 Lcd Tv Specifications
National Training "HDMI, the HDMI logo and High-Definition Multimedia Interface are trademarks or registered trademarks of HDMI Licensing LLC.“ Copyright © 2011 by Panasonic Service and Technology Company All rights reserved. Unauthorized copying and distribution is a violation of law. -
Page 3: Table Of Contents
TC-L42D30 Service Mode TC-L37DT30 Voltage Distribution How to Enter the Service Mode’s SRV-TOOL TC-L42E3 LED Backlight Control TC-L42D30 How to Enter the Self-check Mode TC-L37E3 LED Backlight Power Circuit Troubleshooting Picture Problem TC-L42D30 LED Backlight Power Circuit Panel Free Run Mode... -
Page 4: Topics
Topics Features Start-up Operation A) 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. -
Page 5: New Panel For 2011 - Ips Led Lcd
New Panel for 2011 - IPS LED LCD... -
Page 6: Highlights
Highlights... - Page 7 The New World of Smart VIERA...
- Page 8 Concept of the IPTV World...
- Page 9 Evolution of the IPTV World and Its Future Expansion...
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Page 10: 2D-3D Conversion
2D-3D Conversion... -
Page 11: 2011 Series/Models
2011 Series/Models 42” 37” 32” 24” 19” Series DT Series TC-L37DT30 TC-L32DT30 FHD-3D D Series TC-L42D30 E30 Series TC-L42E30 E3 Series TC-L42E3 TC-L37E3 TC-L32E3 U30 Series TC-L42U30 U3 Series TC-L37U3 TC-L32U3 X30 Series TC-L32X30 C30 Series TC-L19C30 C3 Series TC-L32C3... -
Page 12: 2011 Dt30 Series
2011 DT30 Series FULL HD 3D Eyewear bundled Flush Design Wireless IPS Alpha LED LCD Panel Adaptor 240Hz with Motion Picture Pro5 TC-L37DT30 One pair of 3D eyewear included TC-L32DT30 Image Link • FULL HD 3D • VIERA Connect with Wi-Fi •... - Page 13 2011 LCD TV Specifications (1) Features DT Series D Series E3 Series U3 Series C3 Series Series Series Series Series /Series Image 3D 1080P 1080P Resolution 1080P 1080P 1080P 1080P 720P 720P 720P IPS Alpha IPS Alpha IPS Alpha IPS Alpha LED LCD Alpha Panel...
- Page 14 2011 LCD TV Specifications (2) DT Series D Series Features/S U3 Series Series Series Series Series Series Series eries Link VIERA Connect EASY IPTV™ DLNA Wi-Fi Ready (Wireless (Wireless (Wireless (Wireless (Wireless Adaptor Adaptor Adaptor Adaptor Adaptor Included) Capable) Capable) Capable) Capable) VIERA...
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Page 15: Tc-L37Dt30 Board Layout
TC-L37DT30 Board Layout LED DRIVER & T-CON Board Name Function A-Board Main 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... -
Page 16: Tc-L37Dt30 Connectors
TC-L37DT30 Connectors... -
Page 17: Tc-L37Dt30 T-Con & Led Driver
TC-L37DT30 T-CON & LED Driver A disconnected connector CN901 provides 1 blink of the power LED after approximately 24 seconds of power On. CN 902 A disconnected connector CN902, or CN903 provides 1 blink of the power LED after 4 seconds of power On. CN 903 CN 709 A disconnected connector CN709 provides 10 blink of the power LED... -
Page 18: Tc-L42D30 Board Layout
TC-L42D30 Board Layout T-CON Board Name Function A-Board Main Board - Non-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... -
Page 19: Tc-L42D30 Connectors
TC-L42D30 Connectors STB5V To LED Backlight F15V SUB ON Backlight ON BL_SOS Key scan BL_ON BL_SOS TIMING CONTROL To Speakers To Panel Drive KA10 Power LED, Remote receiver... -
Page 20: Tc-L42D30 P Board
TC-L42D30 P Board Measure Voltages at the CN P2 connectors. No test point (TP) needed CN P4 CN P2 P-Board CN P4 P-Board Pin # Voltage Pin # Voltage BL_ON BL_ON BL_SOS BL_SOS MAIN_ON SUB_ON... -
Page 21: Tc-L42D30 A Board
TC-L42D30 A Board Measure Voltages at the connectors. No test point (TP) CN A02 needed CN A02 A-Board CN A10 A-Board Pin # Voltage Pin # Voltage RED_LED_ON TP 12V STB3.3V AI SENSOR CN S10 REMOTE S-Board Voltage SUB_ON SUB3.3V... -
Page 22: Tc-L42D30 Ld Board (Led Driver)
TC-L42D30 LD Board (LED Driver) Measure Voltages at the connectors. No test point (TP) CN LD2 needed CN LD4 LD-Board CN LD2 LD-Board Pin # Voltage Pin # Voltage 98.8V CN LD4 10.6V 10.4V LED DRIVER 10.6V 12V Test Point 10.5V... -
Page 23: Tc-L37Dt30 Standby Power
TC-L37DT30 Standby Power (1) When the TV is plugged in, AC voltage is applied to the standby circuit of the power supply circuit to produce STB5.8V. The STB5.8V is provided to the A board via pin 15 of connector A02. The STB5.8V is regulated to STB5V and applied to the application specific integrated circuit (ASIC), IC5000, for conversion to STB3.3V. - Page 24 TC-L37DT30 Standby Power (2)
- Page 25 TC-L37DT30 Standby Power (2) When the power button of the TV or remote control is pressed, The MPU (IC8000) of the A board outputs the TV_SUB_ON command to turn on the transistors Q2001 and Q2002 which provide STB5V to the photo-coupler located on the power supply board. The STB5V enters the power supply board via pin 9 of connector P2.
- Page 26 TC-L37DT30 Standby Power (3) KA board STB5V IC5000 IC8000 Remote ANALOG ASIC PEAKS LDA3 Receiver IC5205 STB5.8V STB3.3V Power LED 1.8V, 3.3V 3.3V Circuit STB1.2V 1.2V STBRST (XRSTSTM) RL101 IC5900 Switch RL102 IC5901 +16V LEDDRV_5V V board +16V IR for 3D 3D IR IC3001 ANALOG...
- Page 27 TC-L37DT30 Standby Power (3) When the TV is plugged in: AC is applied to the standby circuit in the power supply to produce STB5V. The STB5V is provided to the A board via pin 2 of connector P2. The STB5V from pin 2 of connector P2 is applied to the Analog ASIC (IC5000) to power the Main CPU/PEAKS LDA3 (IC8000) on the A board.
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Page 28: Tc-L37Dt30 Power On Operation
TC-L37DT30 Power On Operation... - Page 29 TC-L37DT30 Power On Operation When the power button of the TV or remote control is pressed, The MPU (IC8000) of the A board outputs the TV_SUB_ON command to turn on the transistors Q2001 and Q2002 which provide STB5V to the photo-coupler located on the power supply board. The STB5V enters the power supply board via pin 9 of connector P2.
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Page 30: Tc-L37Dt30 Voltage Distribution
TC-L37DT30 Voltage Distribution... - Page 31 TC-L37DT30 Voltage Distribution Explanation The TV SUB On command of IC8000 triggered the P-Board into supplying +16V to the A board. The +16V source, also known as the P15V, is supplied to numerous DC/DC converters to produce SUB and MAIN voltages. On the other hand, the DC/DC_EN command from IC5000 triggers several DC/DC converters to produce SUB5V, USB5V, SUB3.3V, SUB1.5V and SUB1.2V for the operation of the A-Board, KA-Board, and S-board.
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Page 32: Tc-L42E3 Led Backlight Control
TC-L42E3 LED Backlight Control... - Page 33 TC-L42E3 LED Backlight Control Explanation The LED Drive circuit receives 24V from the SMPS. When IC8000 is satisfied of the presence of all the monitored sub-voltages, it provides the Backlight_On command to turn on the LED drive circuit. This command enters the P-Board via pin 13 of connector P2 and travels to the LCD panel to turn on the LED drive circuit.
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Page 34: Tc-L37E3 Led Backlight Power Circuit
TC-L37E3 LED Backlight Power Circuit... - Page 35 TC-L37E3 LED Backlight Power Circuit This circuit diagram on the previous page is an example of the type of LED drive circuit that exists inside the LCD panel The LED Drive circuit receives 24V from the SMPS. IC8000 provides the Backlight_On command to turn on the LED drive circuit.
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Page 36: Tc-L42D30 Led Backlight Power Circuit
TC-L42D30 LED Backlight Power Circuit Waveform to one of the LED backlight connections... - Page 37 TC-L42D30 LED Backlight Power Circuit This circuit diagram on the previous page is an example of the type of LED drive circuit that exists inside the LCD panel The LED Drive circuit receives 24V from the SMPS. IC8000 provides the Backlight_On command to turn on the LED drive circuit.
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Page 38: Tc-L37Dt30 Cpu Commands Explanation
TC-L37DT30 CPU Commands Explanation ① TV SUB ON The SYSTEM MPU on the A board outputs the ① “TV SUB ON” command (3.2V) when the power TV SUB ON IC8000 ② is turned on. This command is used to turn on Backlight or Inverter ON the circuit in the power supply that generates System... -
Page 39: Tc-L37Dt30 Video Input And Process
TC-L37DT30 Video Input and Process... - Page 40 Signal Process Circuit Explanation The main function of the A board is to select and process one of the incoming video signals. All analog video inputs, including Composite Video, Component Video, PC, and the composite video output of the tuner are all connected to a video switch for selection and output to IC8000 for further selection.
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Page 41: Tc-L37Dt30 Eyewear Control Signal
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 TC-L37DT30 Eyewear Control Signal The circuit that handles 3D processing of the LCD TV is located inside the LCD panel. Neither a block diagram nor a schematic diagram is available for the basic understanding of the 3D operation. The one thing that is known is that the eyewear sync signal, developed inside the LCD panel, is output to the A board via pin 42 of the LVDS connector (A15).
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Page 43: Audio Process Circuit
Audio Process Circuit All the audio signals’ selection and processing 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: Sos Detect (Shutdown)
SOS Detect (Shutdown) -
Page 45: Tc-L37Dt30 Power Led Diagnostic Codes
TC-L37DT30 Power LED Diagnostic Codes 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. Blinking times Contents Check Point... -
Page 46: Tc-L37Dt30 Shutdown Circuit Block Diagram
TC-L37DT30 Shutdown Circuit Block Diagram... -
Page 47: Tc-L42D30 Power Led Diagnostic Codes
TC-L42D30 Power LED Diagnostic Codes 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: Protection Circuit (Tc-L32/37Dt30,Tc-L42D30)
Protection Circuit (TC-L32/37DT30,TC-L42D30) A Board ( TNPH0958) Peaks LDA3 < SOS signal > IC5000 (STB3.3V) P15V RESET IC4900 SOUND_SOS Audio 4 blinks AG22 AE17 9 blinks IC8000 Peaks STB3.3V LDA3 SUB3.3V BL ( Back Light )_SOS AH16 7 blinks LCD Panel... -
Page 49: One Blink Of The Power Led (Tc-L37Dt30)
One Blink of the power LED (TC-L37DT30) Start Backlight On signal Is there approx. 3V at Is there 16V at pin 4, 5 P board pin 4 of connector A02 and 6 of connector P2 after power ON? after power ON? Without 16V, the backlight does not work Is there approx. -
Page 50: Seven Blinks Of The Power Led (Tc-L37Dt30)
Seven Blinks of the power LED (TC-L37DT30) Start Jumper across pins 8 and 10 to simulate the power switch After power on, is Disconnect when connector there 16V(F15V) at pin connector A10 and 4, 5 and 6 of A10 is disconnected using a jumper wire, connector P2 before momentarily connect... -
Page 51: Nine Blinks Of The Power Led (Tc-L37Dt30)
Nine Blinks of the Power LED (TC-L37DT30) Start Disconnect each speaker one at a time and power the unit on. Does the unit Replace the A power up and board. stay on? Replace the bad speaker. -
Page 52: And 14 Blinks Of The Power Led (Tc-L37Dt30)
10, 13 and 14 Blinks of the Power LED (TC-L37DT30) 10 Blinks Communication problem between the TCON board (LCD panel) and system control Is there Is there 12V present on A short of the Replace the LCD Panel. Replace the A board. the TCON 12V line? board? -
Page 53: Protection Circuit (Tc-L42E3)
Protection Circuit (TC-L42E3) A Board ( TNPH0926 ) Peaks sLD2 < SOS signal > IC5000 (STB3.3V) P15V RESET IC4900 4 blinks AB25 SOUND_SOS Audio AA25 9 blinks IC8000 Peaks STB3.3V sLD2 SUB3.3V BL ( Back Light )_SOS AB22 LCD Panel 7 blinks 1 blinks uCOM... -
Page 54: Protection Circuit (Tc-L37E3/L32E3 And Tc-L32X30)
Protection Circuit (TC-L37E3/L32E3 and TC-L32X30) A Board ( TNPH0906 ) Peaks sLD2 A Board (TNPH0907) IC5000 < SOS signal > (STB3.3V) P15V RESET IC8000 IC4900 AB25 4 blinks SOUND_SOS Audio AA25 9 blinks Peaks sLD2 T-CON_DCDC_SOS Fault 3 blinks SUB3.3V uCOM 7 blinks STB3.3V... -
Page 55: Protection Circuit (Tc-L42E30)
Protection Circuit (TC-L42E30) A Board ( TNPH0906) Peaks sLD2 < SOS signal > IC5000 (STB3.3V) P15V RESET IC4900 AB25 4 blinks SOUND_SOS Audio AA25 9 blinks IC8000 Peaks sLD2 SUB3.3V 7 blinks STB3.3V uCOM (inside of BL ( Back Light )_SOS LCD module ) LCD Panel AB22... -
Page 56: Nile-T-Con Sos Detection
Nile-T-CON SOS Detection content blinks BL_SOS Back light problem SUB1.8V_SOS Abnormal SUB1.8V SUB1.2V_SOS Abnormal SUB1.2V POWER_SOS Power for PANEL abnormal(AVDD12.6V,DVDD2.5V) T-CON_SOS Communication error with T-CON-IC (Double-speed type) SUB3.3V_SENSE Abnormal SUB3.3V T-CON-DCDC_SOS T-CON-DCDC error SOUND_SOS Audio-AMP error 19C30 24C3 3232C 32LX34 32C3 32U3 37U3... -
Page 57: Protection Circuit (Tc-L42U30)
Protection Circuit (TC-L42U30) A Board ( TNPH0904** ) Nile-T-CON < SOS signal > IC2106 IC4700 Normal : all input = “L” Audio (output = “L” ) (STB3.3V) RESET STB3.3V 12 blinks SUB1.2V SUB3.3V 3 blinks SUB3.3V 10 blinks STB3.3V SUB1.8V IC8001 2 blinks STB3.3V... -
Page 58: Protection Circuit (Tc-L37U3)
Protection Circuit (TC-L37U3) A Board ( TNPH0904** ) < SOS signal-1 > Nile-T-CON IC2106 IC4700 Audio Normal : all input = “L” (output = “L” ) (STB3.3V) RESET 12 blinks STB3.3V SUB3.3V SUB1.2V 3 blinks SUB3.3V 10 blinks STB3.3V SUB1.8V STB3.3V IC8001 Inverter SOS... - Page 59 Protection Circuit TC-L37U3 A Board ( TNPH0904** ) < SOS signal-2 > AVDD12.6V DVDD2.5V VON13V STB5V D5673 4 blinks D5672 Q5602 To pin 29 of IC4700 AVDD12.6 F16V D5674 Q5614...
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Page 60: Ic4700 Block Diagram
IC4700 Block Diagram IC4700 INPUT OUTPUT Pin31 Pin27 Pin28 Pin29 Pin30 Pin4 0.1V 3.3V 2.55V 1.95V 1.35V 0.75V... -
Page 61: Tc-L42D30 Service Mode
TC-L42D30 Service Mode How to enter the Service Mode While pressing [VOLUME ( - )] button of the main unit, press [INFO] button of the remote control three times within 2 seconds. Software Version Main Item Sub Item Data SERVICE... -
Page 62: How To Enter The Service Mode's Srv-Tool
How to Enter the Service Mode’s SRV-TOOL How to access 1. Select [SRV-TOOL] in Service Mode. 2. Press [OK] button on the remote control. Display of SOS (Shutdown) History SOS History (Number of LED blinks ) indication. From the left side; Last SOS, before Last, two occurrences before last, 2nd occurrence after shipment, 1st occurrence after shipment. -
Page 63: Tc-L42D30 How To Enter The Self-Check Mode
TC-L42D30 How to Enter the Self-check Mode 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. -
Page 64: Troubleshooting Picture Problem
Troubleshooting Picture Problem Troubleshooting Picture Problem... - Page 65 Horizontal Area Picture Problem...
- Page 66 Vertical Area Picture Problem...
- Page 67 Vertical Line/Bar Problem...
- Page 68 Horizontal Line Picture Problem...
- Page 69 Non-uniform Color Picture Problem...
- Page 70 Many Vertical Lines Picture Problem...
- Page 71 OSD Problem...
- Page 72 Strange Color Problem...
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Page 73: Panel Free Run Mode
Panel Free Run Mode When a picture problem is encountered, the internal test 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: All video sources contain distortion Start the Panel... -
Page 74: Data Copy Using Sd Card
EEPROM data to the A board. Panasonic 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 then copied to other TVs. - Page 75 Data Copy Preparation The SD card requires a startup text file with a “.pwd” extension for copying to the SD card when replacing the A board or installing a number of units in a hotel. Insert an empty SD card to your PC. Right-click a blank area in the SD card window, point to New, and then click text document.
- Page 76 Hotel Input Password -------- An On-screen display associated with the startup file will appear automatically. Panasonic 3. Input the following password for (a) or (b) by using the remote control. Data Copy (Board Replacement) (a) For Board replacement : 2770...
- Page 77 Input Password ------- using the remote control. 4851 (a) For Board replacement : 2771 Panasonic (b) For Hotel : 4851 Data will be copied from the SD card to the TV. Performing Data Copy (Board Replacement) 4. After the completion of copying to SD card, Copy SD to TV Card remove SD card from the TV set.
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Page 78: Glossary
Glossary (1) 120Hz Motion Picture Pro4 Even fast-moving scenes are displayed sharply and clearly. With a 60Hz video signal input, 120Hz Motion Picture Pro4 makes 120 frames/second from 60 frames/second. This increases the frame count to allow natural frame-to- frame transitions, for smooth motion images with high resolution. Motion Focus Technology also reduces flicker and effectively suppresses blurring and afterimages. - Page 79 Glossary (2) IPS Liquid Crystal Panel IPS liquid crystal is an abbreviated expression for In-Plane-Switching type TFT crystal, and is a high quality crystal mode that "is beautiful even when viewed at an angle." With IPS, the liquid crystal molecules rotate on a plane parallel to the TFT board by a horizontal electrical field, and therefore in principle, it offers superior viewing angle, color reproduction, and halftone response speed, has little variation in color tone according to the viewing direction and is capable of displaying a natural image.
- Page 80 Glossary (3) Wide Viewing Angle The wide 178° viewing angle ensures clear images even when viewed from an angle. The backlight's wide transmission aperture enhances the contrast between light and dark, and improves motion-image response. HDMI ARC The HDMI Audio Return Channel (ARC) allows the TV to receive picture and audio signals over the HDMI cable, and then send the same audio out over the same HDMI cable.