Panasonic TC-P50VT20 Technical Manual
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Panasonic TC-P50VT20 Technical Manual

3d plasma tv
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Technical Guide
th
2010 Panasonic 3D Plasma TV (13
Generation)
Applies to models:
TC-P54VT20
TC-P50VT25
TC-P54VT25
TC-P58VT25
TC-P65VT25
Image
Panasonic Service and Technology Company
National Training
TTG090507CP\REV090717

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Summary of Contents for Panasonic TC-P50VT20

  • Page 1 Technical Guide 2010 Panasonic 3D Plasma TV (13 Generation) Applies to models: TC-P50VT20 TC-P54VT20 TC-P50VT25 TC-P54VT25 TC-P58VT25 TC-P65VT25 Image Panasonic Service and Technology Company National Training TTG090507CP\REV090717...
  • Page 2 National Training "HDMI, the HDMI logo and High-Definition Multimedia Interface are trademarks or registered trademarks of HDMI Licensing LLC.“ Copyright  2009 by Panasonic Service and Technology Company All rights reserved. Unauthorized copying and distribution is a violation of law.
  • Page 3 The PDP high-speed light emission technology utilized to display high-picture quality full HD video images for the left and right eyes in frame sequential is unique to Panasonic. The Panasonic 3D PDP utilizes new phosphor technology for “real deep black and unsaturated brightness,”...
  • Page 4 Features/Specifications Slide 4 Slide 4...
  • Page 5 TC-P50VT25 TC-P54VT25 TC-P58VT25 TC-P65VT25 (FHD Premium 3D) TC-P50VT20 Differences between the VT20 and VT25 models The VT25 Series models offer ISFccc (calibrated with an RS232C jack) and Studio reference mode, and Pro Setting. ISFccc is a protocol used to help professional (BB ISF) calibrators to adjust the TV for a perfect picture.

  • Page 6: New Features

    New Features VT20 VT25 High Picture Quality FHD 3D Dual Scan Short Stroke Phosphor THX Certified Moving Picture 1080 Lines 600Hz Sub-field Drive Infinite Black Plus (Native CR > 2 Mil:1) Smart Networking Viera Cast IPTV Wi-Fi Ready (USB)x2 VIERA Image Viewer (Movie & Photo) Viera Link 4 HDMI Ports RS232...
  • Page 7 Features Full HD 3D Technology For a true Full 1080p 3D image, Panasonic’s VT25 Series features new, faster screen phosphors (short-stroke) which, when coupled with the VIERA VT25’s 600Hz sub-field drive, outputs alternating imagery at 60 frames per second to each eye. Working in unison with the required Active Shutter Eyewear, the human brain then combines the images and interprets them as a Full HD 3D image for the highest possible realistic visual experience;...

  • Page 8: Specifications

    Specifications VT SERIES VT SERIES VT SERIES Sound Surround Main Resolution 1920X1080 Card I/F SD Card Slot Specification Sound Control Contrast Infinite:1 SD Card LED Color Blue (Native) SD Function Movie & Photo Gradation 6144 Balance Control Other I/F Filter Louver Lip Sync (Wi-Fi Ready)
  • Page 9 FHD 3D Panasonic Consumer Products 3D Plasma TV BD Player Home Theater TC-P40VT20 DMP-BDT300PP SC-ZT2 TC-P50VT25 DMP-BDT350PP TC-P54VT25 DMP-BDT100PP TC-P58VT25 TC-P65VT25 Slide 9...
  • Page 10 New Plasma Display Panel The new panel used on the 2010 3D plasma TVs has 3 areas of improvement: 1. Enlarge discharge area. 2. New filter. 3. Reduced pre-discharge. 1 - Enlarged Discharge Area (improves brightness and contrast with less power consumption) The new cell structure, materials, and phosphors made it possible to enlarge the discharge area of each cell.
  • Page 11 New Plasma Display Panel 2 - A New Filter (It blocks ambient light to increase contrast and brightness) A newly developed film minimizes reflection from ambient lighting and increases contrast. It also improves light transmittance, which boosts brightness. The result is reproduction of images that look breathtakingly beautiful in any viewing environment 3 - Reduced Pre-Discharge...
  • Page 12 To receive THX certification, TVs undergo stringent tests to determine: •If the exact same brightness and color are displayed at all screen locations. •If black levels satisfy standard criteria. Panasonic 3D Plasma TVs meets the high standards set by the THX Certified Display Program. Slide 12...
  • Page 13 For 2010 plasma television models, Panasonic measures Native Contrast in a Dynamic mode using a static white rectangular pattern with 4% area size. This...
  • Page 14 Precautions ■ View the screen at a distance at least 3 times the height of the screen. Recommended distance: For a 50-inch TV : 1.9 m (6.23359‘) or more For a 54-inch TV : 2.0 m (6.56167’)or more ■ When watching 3D movies, take an appropriate length break after watching a movie. ■...
  • Page 15 Can Everybody See 3D? No. There’s a small percentage of human (5%~10% of Americans) that lack the ability to properly see different images for each eye. This condition is called “Stereo Blindness”. 3D Technology Slide 15 Slide 15...
  • Page 16 Frame Sequential, Side by Side, Top and Bottom, Checker Pattern (Field Sequential), Line By Line Frame Sequential Supported By Panasonic 3D Plasma TV In the frame sequential method, images for each eye are alternately reproduced in its full resolution. This means a separate 1920 x 1080 Full HD image is sent to each of eye, enabling the viewers to fully immerse themselves in the 3D landscape presented.
  • Page 17 3D Display Formats (Methods) 4/12 3D Multiple Broadcasting Checker Pattern (FS) Item Top & Bottom Frame Sequential Side by Side Also Called Line by Line (T&B) Field Sequential HDMI Ver/1.4/ Under HDMI Digital signal Input HDMI Ver. 1.4 HDMI Ver.1.4 HDMI Ver.1.3 Ver.1.3 from PC etc.
  • Page 18 3D Display Formats (Methods) Line By Line, Checker Pattern (Field Sequential), Frame Sequential A sequential 3D TV can display sequential 3D, this means the TV converts it. Blu-ray outputs the video at 1080p 24 frames per second, per eye; or 48 frames per second. This signal goes to the TV but the glasses are what ensures each eye sees the correct image.
  • Page 19 Frame Sequential Method Frame Sequential Method Panasonic uses full-HD sequential playback to achieve a level of reality that far exceeds conventional 3D systems. Called the Frame Sequential Method, it's the same method that is used in Hollywood's 3D films. It reflects our commitment to 3D imaging detail.
  • Page 20 FULL HD 3D Video Picture Format FULL HD 2D Video Picture FULL HD Video = Video of 60 frames of about 2 million pixels 1920 lines Full HD ×60 frames/second 1080lines picture quality FULL HD 3D Video Picture FULL HD 3D Video = Video of 60 frames for right eye and left eye (total 120 frames) of FULL HD Video (1920 x 1080 ) are alternately transmitted per second.
  • Page 21 Eyewear (EW3D10U) EW3D10 Full HD 3D Eye-ware High Precision shutter control sends clear images to each eye. Highly precise control completely closes the shutters for both eyes at the instant that the images change for the left and right eyes. This masks unwanted afterimages to enable clear and comfortable 3D viewing.
  • Page 22 3D Eyewear Specification Specifications Lens Type Liquid Crystal Shutter; Frame sequential type Batteries/ Coin-shaped lithium battery CR2032 / (Approx. 75 hours in a row) (duration) Dimensions 177 x 46 x 174 mm (7.0" x 1.9" x 6.9") (W x H x D) Power DC 3 V Supply...
  • Page 23 Vision principle with 3D glasses Vision principle with 3D glasses Brain recognizes the 3D (stereopsis) vision according to parallaxes of right and left eyes. Image for Image for Composite left eye right eye image Slide 23...
  • Page 24 Difference Between the Passive Plastic Glasses With Polarized Lenses Used at the Movies and The Active Shutter System Glasses Used with 3D TVs With active shutter glasses, crosstalk is eliminated easier than passive glasses. Crosstalk is a phenomenon where an image intended for one eye is seen by the other, causing ghost images to appear.
  • Page 25 Procedures To Check The 3D Eyewear Determining if a the 3D eyewear is working or not can be easily done if another set of working eyewear is available. When another set of eyewear is not available, perform the following tests to determine if the glasses are OK: Battery voltage check Shutter operation check...
  • Page 26 Procedures To Check The 3D Eyewear 2 - Shutter operation check Check shutter open/close operation by changing 2D/3D select switch on the user menu. The liquid crystal shutter open/close timing is controlled by receiving IR signals from the TV, which provide 3D expression of the images. 3D Auto 1.
  • Page 27 How to check IR signal from TV set 10/12 Set the 3D/2D select switch on the user menu to 3D to confirm the IR output signal from the TV by using Mobile Phone’s Camera. Note: This will not work with cameras with IR filters 3D Auto 2D : IR Output OFF There are total six IR output LED.
  • Page 28 3D Source and 3D Format Settings Slide 28 Slide 28...
  • Page 29 Basic Components Source – 3D Eyewear – Display – High Speed HDMI Cable (1.4) HDMI Source Display Cable Glasses (1.4) Only the HDMI inputs are compatible with the 3D mode. Slide 29...
  • Page 30 3D Sources 3D Blu-ray Player, Satellite, Cable, and Over the Air Signal. Digital or HD service subscription and a direct cable connection or an HD STB (Set-Top-Box) are required. • If a STB is used, an HDMI connection between the cable box and the TV is required. •...
  • Page 31 Note: Both are actually same menu as next page. However, from VIERA Tools, the message below will be displayed except when TV(ANT In = Antenna) or HDMI input is selected instead of 3D settings. Enjoy an entirely new viewing experience with Panasonic 3D. Display 3D content via an HDMI-connected device or 3D DTV signals via the Antenna input.
  • Page 32 3D Settings Menu OSD images (Menu) Option Function 3D settings Default option. Select when Eyewear (Glasses) is used for watching 3D Eyewear Select when Eyewear (Glasses) is not used, including even when 3D signal is Side by side received. (Because customer cannot watch 3D images without the glasses) 3D input format For details, see next page.
  • Page 33 “3D input format” Matrix Between Menu and Actual ：Normal 2D image (non-color) ：Correct 3D image (blue) Menu “3D Eyewear” Menu “3D Side by Side by Top and Top and Native Native Auto Auto Input format” Actual side side bottom bottom Input format Frame Sequential (DIGA)
  • Page 34 How to change from 2D to 3D If you see something like this you need to change the TV’s “3D input format” to “Side by Side” Slide 34...
  • Page 35 How to change from 2D to 3D If you see something like this you need to change the TV’s “3D input format” to “Top and Bottom” Slide 35...
  • Page 36 How to change from 2D to 3D The best way to do this is on the remote press the “VIERA TOOLS” button on the remote Slide 36...
  • Page 37 How to change from 2D to 3D After you press the “VIERA TOOLS” button this screen will come up Press the “OK” when the “3D” option is highlighted Slide 37...
  • Page 38 How to change from 2D to 3D Scroll Down to the “3D input format” option Slide 38...
  • Page 39 How to change from 2D to 3D Change it from “Auto” to “Side by Side” Slide 39...
  • Page 40 How to change from 2D to 3D The picture should like the figure below Slide 40...
  • Page 41 How to change from 2D to 3D Change it from “Auto” to “Top and bottom” Slide 41...
  • Page 42 How to change from 2D to 3D The picture should like the figure below Slide 42...
  • Page 43 How to change from 2D to 3D Then press the “EXIT” button on the remote Slide 43...
  • Page 44 Connections Slide 44 Slide 44...
  • Page 45 Network Ethernet (C5ZZZ0000048) Card I/F SD Card Slot SD Card LED Color Blue SD Function Movie & Photo Other I/F (Wi-Fi Ready) RS-232C VT25 Only The Panasonic 3D plasma TVs also support DLNA. Function DLNA IPTV Viera Cast Slide 45...
  • Page 46 Dial-up Internet service cannot be used for VIERA CAST. Wireless LAN The DY-WL10PP-K Panasonic wireless LAN adaptor can connect with your TV. Connection with the following Access point has been confirmed for use of wireless LAN adaptor DY-WL10PP-K with your TV.
  • Page 47 Connection HDMI Cable There are two types of HDMI cables: "Standard HDMI Cable" and "High Speed HDMI Cable“. Use "High Speed HDMI Cable" corresponding to FULL HD 3D. Connecting a BD player, and a Home Theater to Connecting a BD player to a 3D Plasma TV a 3D Plasma TV Only a HDMI cable is needed.
  • Page 48 Boards Layout Slide 48 Slide 48...
  • Page 49 TC-P50VT20 Slide 49...
  • Page 50 3D Model TC-P50VT20 C Boards Sub Woofer D Board Slide 50 Slide 50...
  • Page 51 Connectors Location Slide 51...
  • Page 52 Start-up Operation Standby/Power On Slide 52 Slide 52...
  • Page 53 Start-up Process Upon connecting the Panasonic 3D Plasma Display Television to the AC line, the sound of relays being triggered can be heard from the Power Supply board. Also a red light from the Optical jack on the back of the TV can be observed.
  • Page 54 TV Start-Up Procedure The power supply generates the voltages necessary for signal process and panel drive operations. When the power is turned on, the power supply outputs F15V and P15V (Sound amp.) to the A board for signal processing. Then, Vsus, Vda, and P15V are output to the panel drive section.
  • Page 55 Standby Operation The STB5V from the Power Supply is connected to the A and the D boards. During standby, this voltage is not used by the D board. In the A board, the STB5V is applied to a 3.3V regulator (IC5480) to generate the STB3.3V to power the MAIN MICON Genx8 (IC1100).
  • Page 56 Temporary Turn On at Plug-in When the A board receives the STB5V at pin 1 of connector A7from the power supply, it outputs the “TV_SUB_ON” command for approximately 15 seconds. This command is applied to the power supply board to generate the F15V. The F_STB15V is applied to the A board.
  • Page 57 Illustration of The Boards Being Temporarily Energized At Plug-in. This is an illustration of the boards being temporarily energized when AC is applied to the TV. When the TV is plugged in for the first time, the P, A, and K boards are energized for approximately 15 seconds.

  • Page 58: Power On Operation

    Power On Operation Slide 58 Slide 58...
  • Page 59 Power On Operation (3D Model TC-P50VT20) The power command from the power switch on the A board or the remote control receiver on the K board is provided to the CPU (IC1100) in the A board. The CPU on the A board outputs 2 commands: 1.
  • Page 60 Power On Operation Slide 60 Slide 60...
  • Page 61 Power On Operation When IC9400 is turned on, it outputs the STB_D3.3V and the reset pulse to the Panel CPU (IC9003) on the D board. When the CPU on the D board is energized, it outputs 2 commands: • The “PANEL_MAIN_ON” •...
  • Page 62 Method To Turn On the Panel Drive Circuit Only (A Board is Isolated) Note: Before following the procedure on the next slide, make sure that connector P34 on the power supply has a jumper from pin 1 to pin 3. Some TVs may not have a jumper on P34, instead, they have a jumper between pins 12 and 14 of connector P7.
  • Page 63 Method To Turn On the Panel Drive Circuit Only (A Board is Isolated) It’s possible to have the “Panel Drive Section” running with the “Signal Processing Section” (A board) disconnected. By separating the 2 sections, it could be determined if the symptom on the TV is created by the A board or one of the boards on the Panel Drive Section.
  • Page 64 Relays Triggering Commands The AC relays in the power supply are triggered when the TV-SUB-ON command (3.2V) is output from the A board. Note: The PANEL-MAIN-ON command (3.2V) from the D board can also trigger the relays, but since it’s preceded by TV-SUB-ON, it has not effect on the relays because by the time this command is output, the relays are already energized.
  • Page 65 Method To Turn On the Panel Drive Circuit Only (A Board is Isolated) Slide 65 Slide 65...
  • Page 66 Signal Processing Slide 66 Slide 66...
  • Page 67 Signal Process Block Diagram Slide 67...
  • Page 68 Digital Signal Processor Explanation The main function of the A board is to select and process one of the incoming video signals. Analog signal from Video inputs 1 and 2, Component Inputs 1 and 2, PC input, and the composite video output of the tuner are all connected to IC3001 for selection.
  • Page 69 Symptom Created By a Defective A Board This symptom is an example of a problem created by a defective A board. The Right LVDS signal from the A board is missing. The A board on previous models never caused this type of problem. This is due to the right and left LVDS separation in the A board.
  • Page 70 Panel Drive Control Pulses R/L LVDS Data from the A board Slide 70...
  • Page 71 Supply voltages P15V, P5V, and STB5V from the power supply are used to drive the circuits on the D board. Other voltages (1.2V, 2.5V, and 3.3V) derived from the P15V are used by the Video/Panel Control IC (IC9300) and the Video/Panel Control/Discharge Control IC (IC9400). Panasonic ideas for life Slide 71...
  • Page 72 Troubleshooting Tips Slide 72 Slide 72...
  • Page 73 Caution When Reconnecting Ribbon Cables Between C boards It’s not save to reconnect any or all the ribbon cables between the C board if the TV has been energized while they’re disconnected. A residual voltage in the Vda line remains for a few minutes after the TV has been disconnected.
  • Page 74 SU and SD Boards Isolation Procedure The 2008, 2009, and 2010 plasma models are designed not to turn-on if either the SU or SD board is disconnected. Disconnecting either causes the unit to shutdown and the power LED to blink 7 times.
  • Page 75 SU and SD Boards Isolation Procedure This procedure is useful when troubleshooting 7 blinks problems. If the power LED continues to blink even after the TV is unplugged, press and hold the power switch on the TV for a few seconds until the LED turns off. To isolate the SM board is not necessary to remove any boards: ...
  • Page 76 SOS Detect (Shutdown) When an abnormality occurs in the unit, the “SOS Detect” circuit is triggered and the TV shuts down. The power LED on the front panel will flash a pattern indicating the circuit that has failed. Cautions: If the power LED continues to blink even after the TV is unplugged, press and hold the power switch on the TV for a few seconds until the LED turns off.
  • Page 77 SOS Detect Circuit 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.

  • Page 78: Power Led Error Codes

    Power LED Error Code Definition (1 of 2) The following table identifies the areas where a problem is suspected according to the number of times that the POWER LED blinks. POWER LED CONDITIONS TRIGGERING ERROR CIRCUIT MONITORED THE SHUTDOWN CODE Panel Information SOS Communication problem between the System CPU 1 BLINLK...
  • Page 79 Power LED Error Code Definition (2 of 2) POWER LED CONDITIONS TRIGGERING ERROR CIRCUIT MONITORED THE SHUTDOWN CODE Missing Vsus. Abnormality of the scan circuit output, the 15V_F, the scn_pro, and Vscn circuit. Scan Drive Circuit and Loose or open Connection between the SC board and the 7 BLINKS Connection between the SC SM board (SC41, SC42, SC46).
  • Page 80 SOS Detect Circuit 1 Blink SOS: Communication error between System CPU (IC1100) and Panel CPU (IC9003). 2 Blinks SOS: Pin 62 of the CPU IC9003 monitors the 15V line. During normal operation, the pin 62 is high. If the 15V line is missing or shorted, a low is provided to pin 62. As a result, the unit shuts down and the power LED blinks 2 times.
  • Page 81 D Board SOS Detect Block Diagram Slide 81 Slide 81...
  • Page 82 8 Blinks Error Code Slide 82...
  • Page 83 8 Blinks Error Code Slide 83...
  • Page 84 9 Blinks Error Code This condition can cause the TV to shutdown and the power LED to blink 9 times No communication between IC9300, IC9004 and IC9003 Since these ICs are located on the D board, only the D board can cause the TV to shutdown with 9 blinks of the power LED.
  • Page 85 D Board SOS Detect Circuit Explanation One of the multiple functions of IC701 (Power MICOM) is to detects abnormalities on the Power Supply. Abnormalities in the P board are reported to IC9003 via the SOS4 input: The SOS2_15V, SOS3_3V and SOS5_5V detect input lines of IC9003, monitor for missing voltage or short circuit of the 15V, 3.3V and 5V inputs to the D board.
  • Page 86 11 Blinks Error Code (Fans) Slide 86...
  • Page 87 11 Blinks Error Code Explanation The internal temperature of the unit is monitored by the digital temperature sensor (IC9002). Variations in temperature are sensed by the IC and reported to the D board MPU (IC9003) via the SDA02 bus line. IC9003 then conveys the information to the A board MPU (IC1100) via the SDA1 bus line.
  • Page 88 12 Blinks Error Code (Sound) The transistor Q2300 monitors the speaker amplifiers ICs (IC2301 and IC2302). Pin 3 of both ICs is normally high. If any of these ICs or one of the speakers develops a short circuit, pin 3 goes low causing Q2300 to go into conduction and output a low to the base of Q2300.
  • Page 89 Service Notes Slide 89 Slide 89...

  • Page 90: Service Mode

    Service Mode While pressing the “VOLUME -” button of the main unit, press the “INFO” button of the remote control three times within 2 seconds. Service Mode Screen 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 of sub items change in forward...
  • Page 91 Self Check/Reset 1. Checks the communication IIC bus lines 2. Provides a SOS History To Access the Self-Check Mode, turn the TV on and while pressing “VOLUME ( - )” button on the To Access the Self-Check Mode, turn the TV on and while pressing “VOLUME ( - )” button on the main unit, press the “OK”...
  • Page 92 Mirror Function This feature allows the picture to be rotated 180° horizontally or 180° vertically. When servicing plasma TVs with horizontal lines, this feature can help to determine if the A board is causing the problem or not. For vertical lines problems, this feature can help to determine if the problem is the A board or the panel.
  • Page 93 Mirror Function Picture flipped Horizontally Normal View (Defective A board) Normal View Picture flipped Vertically (Defective A board) Slide 93 Slide 93...
  • Page 94 TV’s Behavior After Connectors Removal TC-P50VT20 Slide 94...
  • Page 95 TV’s Behavior After Connectors Removal MODEL N0. TC-P50VT20 (Connectors Removal on the D Board) Connectors Result TV stays ON with black bottom right quadrant SOS 6 Blinks SOS 6 Blinks TV stays ON with black top right quadrant SOS 6 Blinks White screen when powered on.
  • Page 96 TV’s Behavior After Connectors Removal MODEL N0. TC-P50VT20 (Connectors Removal Combination on the P, A, and D Board) Connectors Result P6/A6 10 Blinks at plug-in P7/A7 No power (Relays click on and off continuously) P25/D25 SOS 1 Blink TV stays ON with black upper half of the screen...
  • Page 97 SOS 6 Blinks SOS 6 Blinks SC20 SOS 8 Blinks SC20 SOS 8 Blinks MODEL N0. TC-P50VT20 (Connectors Removal on the SS + combination of connectors removal on the SS board and SC board) Connector on Connector on Connector Connector...
  • Page 98 Glossary Resolution Resolution is a combination of values that express the quality of displayed images. A display's resolution is indicated by the number of dots in the horizontal and vertical directions of the screen, such as 1024 x 768 dots. Higher values indicate clearer, sharper image reproduction. The larger the screen size, the higher the required resolution.
  • Page 99 Glossary THX is a trade name of a high-fidelity sound reproduction standard for movie theaters, screening rooms, home theaters, computer speakers, gaming consoles, and car audio systems. THX stands for Tomlinson Holman's eXperiment. The THX system is not a recording technology, and it does not specify a sound recording format: all sound formats, whether digital (Dolby Digital, SDDS) or analog (Dolby Stereo, Ultra-Stereo), can be "shown in THX."...
  • Page 100 Glossary Is The color encoding system used for analog television worldwide (NTSC, PAL and SECAM). The YUV color space differs from RGB, which is what the camera captures and what humans view. Composite Video and S-video The original TV standard combined luma (Y) and both color signals (B-Y, R-Y) into one channel, which uses one cable and is known as "composite video."...
  • Page 101 The End Slide 101...

This manual is also suitable for:

Tc-p50vt25Tc-p54vt25Tc-p54vt20Tc-p58vt25Tc-p65vt25

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