Technical Guide 2010 Panasonic 3D Plasma TV (13th 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
Prepared by Cesar Perdomo Panasonic Service and Technology Company 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. Warning This service information is designed for experienced repair technicians only and is not designed for use by the general public.
Introduction The Panasonic 3D Plasma TV uses what’s called “Frame Sequential Method”. By using this method, the TV outputs alternating imagery at 60 frames per second to each eye. The brain then combines the images and interprets them as 3D. 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.
Features/Specifications Slide 4
Series Line up SERIES MODELS 42” VT SERIES (FHD Premium 3D) 46” 50” 54” 58” 65” TC-P50VT25 TC-P50VT20 TC-P54VT25 TC-P58VT25 TC-P65VT25 Differences between the VT20 and VT25 models 1. 2. 3. 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. RS232C Jack (VT25) for custom installations.
New Features VT20 High Picture Quality Smart Networking FHD 3D Dual Scan NEW Short Stroke Phosphor NEW THX Certified Moving Picture 1080 Lines 600Hz Sub-field Drive Infinite Black Plus (Native CR > 2 Mil:1) VT25 NEW Viera Cast IPTV Wi-Fi Ready (USB)x2 VIERA Image Viewer (Movie & Photo) Viera Link 4 HDMI Ports NEW RS232 NEW Stylish Design Metallic Environmentally Friendly Energy Saving (Louver Filter) Mercury & Lead Free + 100,000 hrs + Eco Mode Slide 6
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.
Specifications VT SERIES Sound Surround Y Sound Control Y BBE VT SERIES Resolution 1920X1080 Infinite:1 Y Contrast (Native) Balance Control Y Gradation 6144 Lip Sync Improvement Y Filter Louver (Direct filter) AV1 Type (Position) RCA/S (Rear) Remote w/ Viera Cast THX Y AV2 Type (Position) RCA (Side) Deep Color Y X.V.
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
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. This increases both brightness and contrast, so you enjoy a bright, vibrant picture while using less energy.
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.
THX THX reproduces film images exactly as the film's creators intended them. The aim is to recreate the audio and visual ambience that filmmakers intended. 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.
Contrast Ratio Note: Native Contrast is expressed as a ratio of the minimum of luminance levels of blacks and the maximum of luminance levels of whites that are displayed and measured at the same time on the same screen in a dark room on a plasma panel module. Panasonic's Native Contrast measurement expresses the maximum contrast ratio of the plasma panel measured at the time of manufacture and does not express a contrast ratio measured during ordinary viewing conditions by a consumer.
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. ■ When watching 3D content on interactive devices such as 3D games or computers, take an appropriate length break after using for 30 - 60 minutes. ■ As a guide, 3D Eyewear should not be used by children younger than 5 - 6 years old.
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 Display Formats (Methods) There are a few methods used to separate the left and right eye images on a 3D display: Frame Sequential, Side by Side, Top and Bottom, Checker Pattern (Field Sequential), Line By Line Supported By Panasonic 3D Plasma TV Frame Sequential In the frame sequential method, images for each eye are alternately reproduced in its full resolution.
3D Display Formats (Methods) 4/12 3D Multiple Broadcasting Item Input (FS) Frame Sequential Side by Side Top & Bottom (T&B) HDMI Ver. 1.4 HDMI Ver/1.4/ HDMI Ver.1.3 under Under HDMI Ver.1.3 Checker Pattern Also Called Field Sequential Digital signal from PC etc. R R … L HDMI Ver.1.4 L R … L L Line by Line Image L R R Support Situation Setting method Remarks ○ HDMI Ver1.4： Auto BD contents use this FS format. ○ HDMI Ver1.
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. The side by side systems, a single 1080p frame that holds both the right and left eye's images is sent at 24 frames per second.
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. Separate images recorded in 1920 x 1080-pixel resolution for both the left and right eyes are alternately displayed at the ultra-high speed of 120 frames per second.
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 1080lines Full HD picture quality ×60 frames/second 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.
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. Features: Adjustable, durable frame The Eyewear can be easily adjusted to fit various face shapes and sizes, from children to adults.
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 Materials Main body: Resin; Lens section: Liquid crystal glass Weight (including Approx. 63 g (2.2 ozs.) batteries) Transmitter for 3D Eyewear / Within 3.
Vision principle with 3D glasses Vision principle with 3D glasses Brain recognizes the 3D (stereopsis) vision according to parallaxes of right and left eyes.
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. With the active shutter glasses, both eyes can be closed off for a split second between each frame. This reduces ghosting or crosstalk.
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: 1. 2. Battery voltage check Shutter operation check 1 - Battery voltage check • Normal charge (2.5V to 3V) is indicated when the power switch is turned on and the Power LED turns on for approximately 2 seconds and then it goes off.
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 3D 2D 1. Change the switch to 3D and 2D, repeatedly. 2. Glass color is changed to dark and bright by detecting a Shutter On/Off signal from TV if they are working propely.
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 3D 2D 2D : IR Output OFF 3D : IR Output ON There are total six IR output LED. 2D → 3D Cell Phone’s camera 2D : IR Output OFF 3D : IR Output ON LED are indicated if TV is working propery.
3D Source and 3D Format Settings Slide 28
Basic Components Source – 3D Eyewear – Display – High Speed HDMI Cable (1.4) Source 3D Glasses Display HDMI Cable (1.4) Only the HDMI inputs are compatible with the 3D mode.
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. • The TV or STB needs to be tuned to the channel with the 3D broadcast. • Stereoscopic 3D glasses are required.
images (Menu) 3DOSDSettings Menu There are two ways to enter the 3D menu to adjust the 3D settings: 1) By pressing the “VIERA Tools” on the remote control Press remote “VIERA Tools” button, then select “3D” 2) By pressing the “Menu” button on the remote control Press remote “MENU” button, then select “Setup” > “3D settings” Note: Both are actually same menu as next page.
images (Menu) 3DOSDSettings Menu 3D settings On 3D Eyewear Option Function On Default option. Select when Eyewear (Glasses) is used for watching Off Select when Eyewear (Glasses) is not used, including even when 3D signal is received. (Because customer cannot watch 3D images without the glasses) Side by side 3D input format For details, see next page. Left/right swap Diagonal line filter Safety precautions Normal On Option Function Auto Default option.
“3D input format” Matrix Between Menu and Actual ：Correct 3D image (blue) On Menu “3D Eyewear” Actual Input format ：Normal 2D image (non-color) Menu “3D Input format” Auto Side by side Off Top and bottom Native Side by side Auto Top and bottom Native 3D Frame Sequential (DIGA) 3D Side by side (DirecTV) 3D Top and bottom *1 *1 *2 *2 *1 *2 2D *1 Displays 3D image only when “Side by Side” ID is detected in the signal （Devices compliant with HDMI v1.4).
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
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
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
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
How to change from 2D to 3D Scroll Down to the “3D input format” option Slide 38
How to change from 2D to 3D Change it from “Auto” to “Side by Side” Slide 39
How to change from 2D to 3D The picture should like the figure below Slide 40
How to change from 2D to 3D Change it from “Auto” to “Top and bottom” Slide 41
How to change from 2D to 3D The picture should like the figure below Slide 42
How to change from 2D to 3D Then press the “EXIT” button on the remote Slide 43
Connections Slide 44
USB Ports USB Ports (2) It is not warranted that all USB devices will work with this unit. It allows playback for photos, video clips, and music clips. It does not read hard drives. It reads thumb drives. It does not support USB device charging. FAT12, FAT16 and FAT32 file systems are supported. This unit supports USB 2.0 High Speed. Using the USB ports, the TV is also WiFi-ready, but you need to purchase a dongle separately.
Internet Connection/Wireless LAN Internet Connection Make sure that the connection speed exceeds the following: • At least 1.5 Mbps for SD (Standard Definition) • 6Mbps for HD picture quality. Note: 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.
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 to a 3D Plasma TV Only a HDMI cable is needed. 3D Plasma TV HDMI Video Audio BD Player Connecting a BD player, and a Home Theater to a 3D Plasma TV 2 HDMI cables are needed. Connection of optical digital cable is not necessary.
Boards Layout Slide 48
TC-P50VT20 Slide 49
3D Model TC-P50VT20 C Boards Sub Woofer D Board Slide 50
Connectors Location Slide 51
Start-up Operation Standby/Power On Slide 52
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. Approximately 15 seconds later, the click sound from the relays can be heard again and the red LED inside the Optical jack turns off.
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. This is an illustration of the actual signal processing section and the panel drive section.
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). The STB3.3V is also connected to the K board for remote control operation and to the power LED (Not shown here).
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. The A board has a DC-DC converter circuit that generates the SUB voltages used by signal processing circuit.
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.
Power On Operation Slide 58
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. The “TV_SUB_ON” command. 2. The “PANEL_STB_ON” command. The “TV_SUB_ON” (3.2V) command is provided to the power supply on pin 5 of connector P7. The power supply outputs F15V to the A board when it receives this command.
Power On Operation Slide 60
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” The “POWER ON/OFF. The PANEL MAIN ON command turns on the power supply circuit that outputs the Vsus, Vda, 15V, and 5V. The POWER ON/OFF command turns on the Video/Panel Control and the Discharge Control circuits in the D board.
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.
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. Note: Disconnecting D3/A32 and D5/A31 allows the TV to turn on by itself with a white screen after it is plugged in to the AC line.
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.
Method To Turn On the Panel Drive Circuit Only (A Board is Isolated) Slide 65
Signal Processing Slide 66
Signal Process Block Diagram Slide 67
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. The video output signal, (Y, Pb, Pr) enters the PEAKS LDA2 IC (IC8000) for processing. The digital signal from the 4 HDMI ports is also provided to IC8000. Only HDMI is ARC (Audio Return Channel) compatible.
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. The D board normally causes this type of problem.
Panel Drive Control Pulses R/L LVDS Data from the A board Slide 70
Circuit Explanation The D board consists of a Video/Panel Control circuit, a Discharge Control circuit, and a Microprocessor Control circuit. The right LVDS (Low Voltage Differential Signaling) signal from the A board is processed by the Video/Panel Control circuit (IC9400) and the left LVDS is control by IC9300. IC9400 output the video data to the data drive circuit boards C1, C2, C4, and C5. These boards output video data to the panel drive ICs that control the right side of the panel.
Troubleshooting Tips Slide 72
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. The panel can be damaged if there is a charge on the Vda line while the ribbon cables are been reconnected.
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. Unplugging any of the connectors SC41/SU41, SU11/SD11, and SC42/SD42, opens the interlocked connection between VF_GND and CHA on the SC board. This triggers the 7 blinks SOS detect circuit shutting down the TV and making the power LED blink 7 times.
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: Remove the 4 VF_GND screws on the SU and SD boards. Unplug connectors SC41, SC46, and SC42 on the SC board.
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. Some steps require removal of connectors and sometimes PC boards removal.
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. Also when the fans are drawing more current than normal the shutdown circuit is triggered. Normally the CPU of the D board and the CPU of the A board detect when a shutdown condition has been triggered.
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 ERROR CODE CIRCUIT MONITORED 1 BLINLK Panel Information SOS Panel Alarm SOS 2 BLINKS P15V form the P board 3 BLINKS P3.
Power LED Error Code Definition (2 of 2) POWER LED ERROR CODE CIRCUIT MONITORED 7 BLINKS Scan Drive Circuit and Connection between the SC board and the SM board. 8 BLINKS Sustain Drive Circuit and Connection between the SS board and the Panel. 9 BLINKS Discharge Control Circuit (IC9300) CONDITIONS TRIGGERING THE SHUTDOWN Missing Vsus. Abnormality of the scan circuit output, the 15V_F, the scn_pro, and Vscn circuit. Loose or open Connection between the SC board and the SM board (SC41, SC42, SC46).
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. 3 Blinks SOS: IC9802 is a 3.3V regulator located on the D board. Its output is monitored by IC9003. If the 3.
D Board SOS Detect Block Diagram Slide 81
8 Blinks Error Code Slide 82
8 Blinks Error Code Slide 83
9 Blinks Error Code This condition can cause the TV to shutdown and the power LED to blink 9 times 1. 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.
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. The remaining SOS6 and SOS 7 inputs, monitor for abnormal operation of the SC and SS boards.
11 Blinks Error Code (Fans) Slide 86
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. Fan speed is controlled by IC9003. The ventilation fans are monitored to be sure they are operating properly.
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. As a result, Q2300 comes on and outputs a high to pin 27 of the System CPU (IC1100) on the A board.
Service Notes Slide 89
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...
Self Check/Reset 1. Checks the communication IIC bus lines 2. Provides a SOS History To ToAccess Accessthe theSelf-Check Self-CheckMode, Mode,turn turnthe theTV TVon onand andwhile whilepressing pressing“VOLUME “VOLUME((--)”)”button buttonon onthe the main mainunit, unit,press pressthe the“OK” “OK”button buttonon onthe theremote remotecontrol controlfor formore morethan than33seconds. seconds. TV volume down & OK on remote only does a basic IC self check. It does NOT clear any unit settings.
Mirror Function New 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. The rear cover does not have to be removed to do this. If the position of the line/lines changes when performing this function, the A board is possibly defective.
Mirror Function Normal View Normal View Picture flipped Horizontally (Defective A board) Picture flipped Vertically (Defective A board) Slide 93
TV’s Behavior After Connectors Removal TC-P50VT20 Slide 94
TV’s Behavior After Connectors Removal MODEL N0. TC-P50VT20 (Connectors Removal on the D Board) Connectors Result D31 TV stays ON with black bottom right quadrant SOS 6 Blinks SOS 6 Blinks D32 D33 D34 TV stays ON with black top right quadrant SOS 6 Blinks D20 D5 White screen when powered on. D3 D25 D31 D31 D32 D32 D33 D33 D34 D34 D20 D5 D3 D5 D3 D25 TV turns on by itself at plug-in with black screen, No fans, SC & SS LEDs are ON.
TV’s Behavior After Connectors Removal MODEL N0.
TV’s Behavior After Connectors Removal MODEL N0. TC-P50VT20 (Connectors Removal on the SC Board) Connector Connector Connector on C1 Board Result SC2 SC2 SOS 7 Blinks SC20 SOS 6 Blinks SC20 SOS 6 Blinks SC2 SC2 C10 SOS 6 Blinks SC20 C10 SOS 8 Blinks SC20 C10 SOS 8 Blinks MODEL N0.
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. HD (high-definition) panel The HD panel has a resolution of 1,366 x 768 pixels and an aspect ratio of 16:9.
Glossary THX 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." THX is mainly a quality assurance system.
Glossary YUV 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.
The End Slide 101
