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Slide 71

Circuit Explanation

71

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. The Discharge Control circuit
outputs the Control Data, Sustain Data, and Scan Control Data. The Control Data is used by the Data
Drive Circuit boards (C3 and C6 boards) to control the left side of the panel.

The Sustain Control Pulses are used by the Sustain board and the Scan Control Pulses are used by
the Scan board.

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).

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Содержание Viera TC-P50VT20

Страница 1: ...ice and Technology Company National Training Technical Guide 2010 Panasonic 3D Plasma TV 13th Generation TC P50VT20 TC P54VT20 TC P50VT25 TC P54VT25 TC P58VT25 TC P65VT25 Applies to models TTG090507CP REV090717 Image ...

Страница 2: ... to service 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 2009 by Panasonic Service and Technology Company All rights reserved Unauthorized copying and distribution is...

Страница 3: ...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 The Panasonic 3D PDP utilizes new phosphor technology for real deep black and unsaturated brightness and employ proprietary 3D drive technology circuitry to minimize crosstalk between alter...

Страница 4: ...Slide 4 Slide 4 Features Specifications ...

Страница 5: ...s 1 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 2 RS232C Jack VT25 for custom installations 3 The bezel color of the VT20 is gunmetal silver grey while The bezel color of the VT25 Series models is a deep brown metallic ...

Страница 6: ...tallic Viera Cast IPTV Wi Fi Ready USB x2 VIERA Image Viewer Movie Photo Viera Link 4 HDMI Ports RS232 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 VT20 Stylish Design Smart Networking High Picture Quality VT25 NEW NEW NEW NEW NEW ...

Страница 7: ...y that produces deep blacks 5 000 000 1 native contrast 2 and vivid images with minimal reflection THX Certified Display Ensures that every Panasonic Full HD 3D TV displays motion pictures and television content with exactly the quality and color palette that the director intended VIERA CAST WiFi with Skype Capability Panasonic s innovative Internet programming package gives viewers the ability to...

Страница 8: ... HDMI4 Position 1 PC Input Y BBE Y Surround Sound Y Sound Control Y Balance Control Y Lip Sync Improvement VT SERIES Y THX w Viera Cast Remote Louver Direct filter Filter 1080 lines Motion Reality Game Mode X V Color Deep Color Gradation Contrast Native Resolution Y Picture Y Y 6144 Infinite 1 1920X1080 Main Specification VT SERIES VT25 Only RS 232C Viera Cast IPTV 2 USB Wi Fi Ready Other I F Y SD...

Страница 9: ...Slide 9 FHD 3D Panasonic Consumer Products TC P65VT25 TC P58VT25 DMP BDT100PP TC P54VT25 DMP BDT350PP TC P50VT25 SC ZT2 DMP BDT300PP TC P40VT20 Home Theater BD Player 3D Plasma TV ...

Страница 10: ...ucture 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 Slide 10 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 ...

Страница 11: ...ight transmittance which boosts brightness The result is reproduction of images that look breathtakingly beautiful in any viewing environment 3 Reduced Pre Discharge Reduces grey and enhances black gradation To minimize light leakage we found a way to reduce the level of pre discharge required for plasma light emission This helps achieve deeper richer blacks that give images exceptional depth and ...

Страница 12: ...d 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 ...

Страница 13: ...umers to compare more easily the Native Contrast ratios reported for Panasonic plasma televisions with the Dynamic Contrast ratios reported by many manufacturers of LCD televisions Depending on the model Native Contrast of the panel has been measured as either 5 000 000 1 or 2 000 000 1 Unlike measurements taken for previous models Pre Discharges do not occur for the images used in the 2010 model ...

Страница 14: ...for 30 60 minutes As a guide 3D Eyewear should not be used by children younger than 5 6 years old As it is difficult to judge younger children s reactions to fatigue or discomfort you may not prevent them from suddenly getting sick When this product is being used by a child the parent or guardian should check to ensure that the child s eyes are not becoming tired When using the 3D Eyewear do not p...

Страница 15: ...Slide 15 3D Technology 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 ...

Страница 16: ...se the images are laid out in a checkered pattern the image data that reaches each eye only has only half the number of pixels than that of a Full HD image thus resulting in a lower quality picture Line By Line In the line by line method the screen s lines are divided into even and odd lines by a polarizer filter This encodes the light in a plane that the odd lines can be only perceived by the lef...

Страница 17: ...DMI Ver 1 4 HDMI Ver 1 3 under HDMI Ver 1 4 Input Format used for PC etc BD contents use this FS format Remarks Line by Line Checker Pattern Also Called Field Sequential Side by Side Frame Sequential Image 3D Multiple Broadcasting Item R L R L Only HDMI Ver 1 4 can recognize 3D signal 3D signal is only for the digital input PC and an external analog input etc do not accept 3D signal L R L R L R 4 ...

Страница 18: ...d 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 The TV receives this signal splits it into two frames displays them sequentially and then stretches them out This is not as good as Blu ray but it uses way less bandwidth and makes...

Страница 19: ...itment 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 Viewing them with high precision 3D Eyewear produces 3D images in full HD quality Note The frame rate varies depending on the 3D image signal being reproduced For example 3D images are reproduced at 120 fps ...

Страница 20: ...D picture quality 1920 lines 1080lines For left eye For right eye 60 frames second 60 frames second FULL HD 3D Video Two times of information data of FULL HD video pictures must be transmitted so when connecting home theater system between VIERA and DIGA use 3D home theater system FULL HD Video Video of 60 frames of about 2 million pixels FULL HD 3D Video Video of 60 frames for right eye and left ...

Страница 21: ...mfortably worn right over ordinary prescription glasses Power on off switch An Auto Power Off function automatically turns the glasses off if they are placed in a location outside the viewing range or IR receiving distance 3 2m 10 5 for 5 minutes even if the TV remains turned on 3D Eyewear case included The 3D TV comes with 1 pair of 3D Eyewear necessary to view the 3D content Additional 3D Eyewea...

Страница 22: ...Viewing Range Transmitter for 3D Eyewear Within 3 2 m 10 5 from front surface Within 35 degree horizontal 20 degree vertical Usage Temperature Range 0 C 40 C 32 F 104 F NOTE The location of the 3D Eyewear transmitter differs depending on the model of television There are differences in the viewing range of the 3D Eyewear among individuals Infra red receiver Receives infra red signals from the tele...

Страница 23: ... Vision principle with 3D glasses Image for left eye Image for right eye Composite image Brain recognizes the 3D stereopsis vision according to parallaxes of right and left eyes Vision principle with 3D glasses ...

Страница 24: ...minated 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 Passive glasses are used with TVs where a polarized filter in the TV has to switch directions for each eye Slide 24 ...

Страница 25: ...tage 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 The Power LED blinks 3 times when the power is turned off A low charge is indicated when the Power LED blinks for 5 times instead of just once after the power is turned on The voltage at this point is between 2V to 2 5V Note The IR receivin...

Страница 26: ... IR signal is blocked the 3D eyewear will receive the other IR signal The liquid crystal shutter open close timing is controlled by receiving IR signals from the TV which provide 3D expression of the images Check shutter open close operation by changing 2D 3D select switch on the user menu 2D Shutter Off 3D Shutter On 2D Shutter Off 3D Auto 3D 2D After 5 sec IR Procedures To Check The 3D Eyewear 2...

Страница 27: ...ndicated if TV is working propery 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 2D IR Output OFF 3D IR Output ON Cell Phone s camera 10 12 Note This will not work with cameras with IR filters How to check IR signal from TV set ...

Страница 28: ...Slide 28 Slide 28 3D Source and 3D Format Settings ...

Страница 29: ...Slide 29 Basic Components Source 3D Eyewear Display High Speed HDMI Cable 1 4 HDMI Cable 1 4 Display 3D Glasses Source Only the HDMI inputs are compatible with the 3D mode ...

Страница 30: ...ey are subscribed to a service which provides 3D content or check their local listings for channels this will be carried on for off air broadcasts The issue is that there may not be a 3D Content Flag embedded in the signal which would cause the TV to automatically change to the correct 3D Input Format so customer may have to make this change in the TV s menu manually They may need to manually chan...

Страница 31: ... Menu button on the remote control Press remote MENU button then select Setup 3D settings 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...

Страница 32: ...cunx matrix signal only when Side By Side or Top And Bottom is received On Function Option For details see next page Select 3D manually when input format is Top and bottom Top and bottom Display the input signals as is on the screen For customers service Native Select 3D manually when input format is Side by side such as DirecTV Side by side Default option Select 3D 2D automatically regardless of ...

Страница 33: ...format Actual Input format Auto Side by side Top and bottom Native 1 2 1 Displays 3D image only when Side by Side ID is detected in the signal Devices compliant with HDMI v1 4 If ID is not detected image is displayed as Native image 2 Displays 3D image only when Top and Bottom ID is detected in signal Devices compliant with HDMI v1 4a If ID is not detected image is displayed as Native image Normal...

Страница 34: ...Slide 34 If you see something like this you need to change the TV s 3D input format to Side by Side How to change from 2D to 3D ...

Страница 35: ...Slide 35 If you see something like this you need to change the TV s 3D input format to Top and Bottom How to change from 2D to 3D ...

Страница 36: ...Slide 36 The best way to do this is on the remote press the VIERA TOOLS button on the remote How to change from 2D to 3D ...

Страница 37: ...Slide 37 After you press the VIERA TOOLS button this screen will come up Press the OK when the 3D option is highlighted How to change from 2D to 3D ...

Страница 38: ...Slide 38 Scroll Down to the 3D input format option How to change from 2D to 3D ...

Страница 39: ...Slide 39 Change it from Auto to Side by Side How to change from 2D to 3D ...

Страница 40: ...Slide 40 The picture should like the figure below How to change from 2D to 3D ...

Страница 41: ...Slide 41 Change it from Auto to Top and bottom How to change from 2D to 3D ...

Страница 42: ...Slide 42 How to change from 2D to 3D The picture should like the figure below ...

Страница 43: ...Slide 43 Then press the EXIT button on the remote How to change from 2D to 3D ...

Страница 44: ...Slide 44 Slide 44 Connections ...

Страница 45: ... 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 Wireless LAN Adaptor DY WL10 C5ZZZ0000048 VT25 Only RS 232C Vi...

Страница 46: ...tion 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 NETGEAR WNDR3300 WNR2000 Linksys WRT400N WRT120N D LINK DIR 655 ...

Страница 47: ...nding to FULL HD 3D 3D Plasma TV BD Player HDMI Video Audio HDMI TV Terminal 1 Video Video Sound 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 The TV Audio signal is transmitted from HDMI video audio input terminal to HDMI video audio output terminal of theater 3D Plasma TV BD Player Home Theater Home Theat...

Страница 48: ...Slide 48 Slide 48 Boards Layout ...

Страница 49: ...Slide 49 TC P50VT20 ...

Страница 50: ...Slide 50 3D Model TC P50VT20 C Boards D Board Sub Woofer Slide 50 ...

Страница 51: ...Slide 51 Connectors Location ...

Страница 52: ...Slide 52 Slide 52 Start up Operation Standby Power On ...

Страница 53: ...lso 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 This condition is normal and by paying attention to this sequence of events we can confirm the operation of several circuits inside the TV Start up Process ...

Страница 54: ...ess 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 ...

Страница 55: ... 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 ...

Страница 56: ...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 Slide 56 ...

Страница 57: ...ing 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 ...

Страница 58: ...Slide 58 Power On Operation Slide 58 ...

Страница 59: ... F15V from pins 6 8 of connector P6 on the P board is applied to pins 6 8 of connector A6 in the A board This voltage is applied to a regulator circuit that generates SUB1 2V SUB1 5V SUB3 3V SUB5V and SUB9V These SUB Voltages are used for signal processing The PANEL_STB_ON 3 2V is output from the Main CPU IC1100 after it has confirmed the presence of all the SUB voltages This command is used to tu...

Страница 60: ...Slide 60 Power On Operation Slide 60 ...

Страница 61: ...03 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 ...

Страница 62: ...ing 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 Power Supply P board with jumper on P34 P board with jumper on P7 Slide 62 ...

Страница 63: ...f with a white screen after it is plugged in to the AC line This procedure does not disable the A board To completely disable the A board 1 Unplug the TV 2 Remove connectors P6 and P7 from the power supply See note on previous slide 3 Plug in the TV Do not press the power button The TV partially turns on by itself The screen stays black No fan operation The LEDs on the SS board and SC board are on...

Страница 64: ... 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 ...

Страница 65: ...Slide 65 Method To Turn On the Panel Drive Circuit Only A Board is Isolated Slide 65 ...

Страница 66: ...Slide 66 Slide 66 Signal Processing ...

Страница 67: ...Slide 67 Signal Process Block Diagram ...

Страница 68: ...MI 1 and HDMI2 are connected to an Equalizer to allow for longer cables to be connected to these 2 ports USB data Ethernet data and JPEG data of the SD card are also connected to IC8000 All picture control operations such as brightness contrast color tint etc are performed by IC8000 On Screen Display data such as channel numbers Digital TV closed caption and picture adjustments are mixed with the ...

Страница 69: ...e 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 ...

Страница 70: ...Slide 70 Panel Drive Control Pulses R L LVDS Data from the A board ...

Страница 71: ...e ICs that control the right side of the panel The Discharge Control circuit outputs the Control Data Sustain Data and Scan Control Data The Control Data is used by the Data Drive Circuit boards C3 and C6 boards to control the left side of the panel The Sustain Control Pulses are used by the Sustain board and the Scan Control Pulses are used by the Scan board Supply voltages P15V P5V and STB5V fro...

Страница 72: ...Slide 72 Slide 72 Troubleshooting Tips ...

Страница 73: ...ove P65 Vda and P35 Vda from the power Supply 3 Reconnect the ribbon cables 4 Reconnect P65 and P35 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 ...

Страница 74: ...s 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 ...

Страница 75: ...SC jig cable TZSC09187 between pins 1 and 2 of connector SC50 on the SC board Note If the SC jig is not available install a jumper between pins 1 and 2 of connector SC50 on the SC board Remove the jig or the jumper after completing the isolation procedure When this is done the display is completely black No picture To isolate the SM board is not necessary to remove any boards The SC test fixture J...

Страница 76: ...for a few seconds until the LED turns off Some steps require removal of connectors and sometimes PC boards removal Do not allow the TV to run for more than 30 seconds while connectors or boards are disconnected Warning The Vsus line has large capacitors that hold the charge for some time even after the TV has been turned off and unplugged When disconnecting P2 SC2 or P11 SS1 bleed the remaining ch...

Страница 77: ...n 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 When an abnormality has occurred the unit protection circuit operates and the TV is reset to the stand by mode At this time the defective block can be identified by the number of blinks of the POWER LED on the front of the unit IC9003 of the D board detects conditio...

Страница 78: ...ostic by the D board 4 BLINKS Power Supply output voltages Regulation issues with any of the voltages output from the power supply Wrong diagnostic by the D board 5 BLINKS P5V from the A board Missing P5V Reasons The A board is not generating the 5V The 5V is been affected by the SC SS A or C2 board A short circuit of the P5V Wrong diagnostic by the D board 6 BLINKS SC Energy Recovery Circuit An i...

Страница 79: ...rd and the Panel Abnormality of the sustain drive circuit Open or loose connection between the SS bd and FPCs from the panel Open or loose connection between connectors C10 C20 Wrong diagnostic by the D board Defective panel 9 BLINKS Discharge Control Circuit IC9300 Failure of IC9300 Wrong diagnostic by the D board 10 BLINKS Abnormalities of the F 15V Reasons The P board is not generating the F 15...

Страница 80: ...rs the status of the SC board During normal operation a low is applied to pin 65 If the SC board becomes defective a high is provided to pin 65 As a result the unit shuts down and the power LED blinks 6 times 7 Blinks SOS Pin 68 of the CPU IC9003 monitors the status of the SC SU SD board During normal operation a low is applied to pin 68 If the SC SU or SD board becomes defective a high is provide...

Страница 81: ...Slide 81 Slide 81 D Board SOS Detect Block Diagram ...

Страница 82: ...Slide 82 8 Blinks Error Code ...

Страница 83: ...Slide 83 8 Blinks Error Code ...

Страница 84: ...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 This condition can cause the TV to shutdown and the power LED to blink 9 times ...

Страница 85: ...normal operation of the SC and SS boards A defective D board may also be responsible for the 2 3 4 5 6 7 8 or 9 blinks of the power LED A defective component on the D board may supply the MPU IC9003 an erroneous input that causes the unit to shut down with the power LED blinking a number of times Since the D board does not control the blinking pattern of the power LED any detected SOS condition mu...

Страница 86: ...Slide 86 11 Blinks Error Code Fans ...

Страница 87: ...n fans are monitored to be sure they are operating properly If one of the fans opens or increases resistance the resulting current change is applied to pin 61 of the main CPU IC1100 The fan drive circuit is located on the A board To control the speed of the fan a control voltage from the microprocessor IC1100 is applied to IC5740 If any of the fans is removed or becomes defective a high is output ...

Страница 88: ...1 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 ...

Страница 89: ...Slide 89 Slide 89 Service Notes ...

Страница 90: ...th the POWER button on the main unit or the POWER button on the remote control 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 direction in reverse direction Service Mode Screen ...

Страница 91: ...sic IC self check It does NOT clear any unit settings It does not clear channel programmed settings picture settings channel labels LOCK mode settings or password Using this method it shows the unit firmware version Peaks 1 050 and GenX 1 00 and it checks IC communications ONLY This is more useful to identify the firmware version without having to decode the info in the setup menu About Version sc...

Страница 92: ...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 If the line lines do not move For horizontal lines check between the panel and the SM board For vertical lines change the panel To enter the Mirror Function From the Service Mode Menu select OPTION Press 3 or 4 to select MIRROR Press the VOLUME up or down butt...

Страница 93: ...Slide 93 Slide 93 Mirror Function Normal View Picture flipped Vertically Defective A board Normal View Picture flipped Horizontally Defective A board ...

Страница 94: ...Slide 94 TV s Behavior After Connectors Removal TC P50VT20 ...

Страница 95: ... with black top right quadrant D20 SOS 6 Blinks D5 White screen when powered on D3 TV turns on by itself at plug in with black screen No fans SC SS LEDs are ON D25 SOS 1 Blink D5 D3 TV turns on by itself at plug in with white screen and no fan operation Note The A board is not completely isolated when these 2 connectors are unplugged D5 D3 D25 SOS 1 Blink D31 D32 D33 D34 SOS 6 Blinks D31 D32 D33 D...

Страница 96: ...n operation Note Unplug these connectors to isolate the A board P6 A6 D3 A32 TV turns on by itself at plug in with black screen No fans SC SS LEDs are ON P6 A6 D5 A31 10 Blinks at plug in P6 A6 P7 A7 D3 A32 TV turns on by itself at plug in with white screen and no fan operation P6 A6 P7 A7 D3 A32 D5 A31 TV turns on by itself at plug in with white screen and no fan operation P6 A6 D3 A32 D5 A31 TV ...

Страница 97: ... Blinks MODEL N0 TC P50VT20 Connectors Removal on the SS combination of connectors removal on the SS board and SC board Connector Connector Connector on SC Board Connector on SC Board Result SS11 TV Stays On SS33 or C33 TV Stays On SS11 SS33 or C33 TV Stays On SS11 SC2 SOS 7 Blinks SS33 or C33 SC2 SOS 7 Blinks SS11 SS33 or C33 SC2 SOS 7 Blinks SS11 SC20 SOS 6 Blinks SS33 or C33 SC20 SOS 6 Blinks S...

Страница 98: ...of pixels indicates the resolution of the Image The number of pixels of a digital image is expressed by the product of the number of pixels dots in the horizontal direction and the number of pixels dots in the vertical direction The higher the number of pixels the better the image quality For plasma TVs and LCD TVs the number of pixels is sometimes expressed by the following equation number of pix...

Страница 99: ...mcorders and digital cameras It is based on the H 264 MPEG 4 AVC video compression standard Audio is stored in compressed form Dolby AC 3 The container format for the audio and video is MPEG transport stream H 264 H 264 is a standard for video compression and is equivalent to MPEG 4 Part 10 or MPEG 4 AVC for Advanced Video Coding As of 2008 it is the latest block oriented motion compensation based...

Страница 100: ... video designated as YPbPr when in the analog domain and YCbCr when it is digital ASIC An Application Specific Integrated Circuit ASIC is an integrated circuit IC customized for a particular use rather than intended for general purpose use S PDIF Is a Data Link Layer protocol and a set of Physical Layer specifications for carrying digital audio signals between devices and stereo components over ei...

Страница 101: ...Slide 101 The End ...

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