Technical Guide 2009-Plasma HD and FHD TV (12th Generation) Applies to models: TC-P42X1 TC-P50X1 TC-P42S1 TC-P46S1 TC-P50S1 Model TC-P42PX1 Panasonic Service and Technology Company National Training TTG090306CP/090306 Slide #1
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.
Table of Content Subject Topics Introduction Series Line-up Z1 - V10 Series G10 –S1 Series Z Series New Features Comparison Power Consumption Comparison Viera Technology Moving Picture Resolution 1080 Lines with 600Hz Sub-field Drive Moving Picture Resolution Sub-field Over 2,000,000:1 High Contrast (Native 40,000:1) Air Filter Wireless HD Radio Frequency Remote Controller TC-P42PX1 (HD Model) Technical Changes S – Series Full-HD Connectors/Boards Location Boards Description Standby Operation Standby Circui
Topics Introduction Series Line-up Features Comparison Technical Changes Standby – Power On Operation Shutdown Circuit Explanation Troubleshooting Boards Isolation Service Notes Slide #4
Introduction Panasonic's 2009 line of VIERA HDTVs have improved their energy efficiency vs. last year's models, while also improving the overall picture performance of the HDTVs. This is list of features provided by Panasonic's 2009 line of VIERA HDTVs 1. Access to HD movie rental via Amazon Video-on-Demand. 2. Improved VIERA CAST interface by implementing quick keyword input (like a cell phone) to help retrieve favorite content faster and easier. 3.
Series Line up SERIES MODELS 42” 46” 50” Z1 SERIES (Full HD) 58” 65” TC-V58V10 TC-V65V10 TC-P58S1 TC-P65S1 TC-P54Z1 V10 SERIES (Full HD) TC-V50V10 G15 SERIES (Full HD) TC-P42G15 TC-P46G15 TC-P50G15 G10 SERIES (Full HD) TC-P42G10 TC-P46G10 TC-P50G10 S1 SERIES (Full HD) TC-P42S1 TC-P46S1 TC-P50S1 U1 SERIES (Full HD) TC-P42U1 TC-P46U1 TC-P50U1 X1 SERIES (HD) TC-P42X1 TC-P50X1 C1 SERIES (HD) TC-P42C1 TC-P50C1 DERIVATIVE MODELS 42” PS SERIES (Full HD) PX SERIES (HD) 54” TC
Z Series Z1/V10 Series The flagship VIERA plasma in 2009 is the Z1 series, with a revolutionary one inch thin panel design and Wireless HD connectivity to deliver the ultimate sleek, uncluttered HDTV viewing experience. VIERA CAST web menu with the new streaming HD movie rental capability via Amazon Video-onDemand. The Neo PDP design of the VIERA Z1 produces a brighter picture, deeper blacks, improved native contrast ratio (40,000:1) and Full-Time 1080 TV lines of motion resolution.
G10/S1 Series G10 Series The VIERA G10 features the VIERA CAST web menu. THX certified Display. 1080p resolution, deeper blacks, improved native contrast ratio of 40,000:1, Full-Time 1080 TV lines of motion resolution, an Infinite Black panel, 600Hz Sub-field Drive, as well as Game Mode and VIERA Link. Available in a 54-inch class, 50-inch class, 46-inch class, and 42-inch class screen size.
X Series X1 Series The X1 VIERA HDTVs offer a 600Hz Sub-field Drive that delivers razor-sharp motion focus. VIERA Image Viewer for photos playback. VIERA Link control of all compatible A/V home entertainment components via a single remote. Improved native contrast ratio of 30,000:1, an Infinite Black panel, and a Game Mode. Available in a 50-inch class and 42-inch class.
New Features Comparison Feature Z1 G15 G10 S1 Wireless HD X RF Remote Control X RS232 X X PC input X X X X X LAN Port X X X X X THX X X X X X Viera Cast X X X X X Viera Link With Network Camera X X X X X AVCHD/MPEG2/JPEG playback Thru SD Card X X X X X 1080 Lines Moving Picture Resolution X X X X X 900 Lines Moving Picture Resolution 720 Lines Moving Picture Resolution V10 U1 X1 C1 X PS PX X X X X X X Slide #10
Power Consumption Comparison HD FULL HD 2008 LCD 2008 Plasma 2009 Plasma TC-32LX85U Power Consumption Maximum 142 W Standby condition 0.6 W Weight 35.3 lb. TH-42PX80U (No Fans) Power Consumption Maximum 385 W Standby condition 0.3 W Weight 56.7 lb. TC-P42X1 (No Fans) Power Consumption Maximum 286 W Standby condition 0.3 W Weight 57.4 lb. TH-50PX80U (No Fans) Power Consumption Maximum 497 W Standby condition 0.3 W Weight 76.8 lb.
VIErA Technology Slide #12
New Moving Picture Resolution 1080 Lines with 600 Hz Sub-field Drive Sports and other fast-action scenes are stunningly clear. To improve the moving picture resolution, frames are generated at the sub-field level. With a frame generated each 1/60th of a second, images are created to match the motion.
Moving Picture Resolution A static image is represented in its entirety 1920x1080. When the image moves from frame to frame, resolution is lost by the drivers and electronics behind the screen. Moving Picture Resolution 900 lines or more The resolution can be different between static versus dynamic. As you are watching moving images - that is the resolution that Panasonic quotes. It might be 1300 for a JPEG (just showing a comparison) 480 Hz Sub-field Drive 480Hz refers to the subfield drive.
Sub-field A number of sub-fields overlap to depict the image in each frame. Panasonic technology detects movement in the image and reflects it in each individual subfield to achieve smooth playback with minimal blurring. What's Sub-field? Plasma TVs express a single frame of an image by using multiple images, each having a different gradation. These separate images are called sub-fields.
Over 2,000,000:1 High Contrast (Native 40,000:1) New Series Z1, V10, G15, G10, S1, The shading in dimly-lit night scenes is beautifully rendered. A high contrast is achieved by NeoPDP technology. This newly developed, highly efficient panel creates a larger difference between maximum brightness (white) and minimum brightness (black).
AR Filter Enjoy clearer images without bothersome reflections. Screen reflections are cut when viewing in bright rooms. This filter minimizes light reflections. Panasonic's unique low-reflection filter greatly reduces the reflected light intensity compared with the incident light intensity.
New Wireless HD™ View HD images with wireless operation. This function sends high-resolution, full-HD data over a wireless connection. It enables a flexible VIERA layout to match any room interior. *A special receiver is required to use WirelessHD™. The usage distance and installation environment for the Wireless HD™ System and the effect that other machines will have on it are presently being tested, and the system performance is being confirmed.
New Radio Frequency Remote Control The signals that propagate all around the room can be used to operate equipment without having to worry about the direction that the remote control is pointed. This allows easy operation of a Tuner that is placed inside an AV rack. Note: This remote control uses 2.4GHz frequency. Please do not place this control near any other device which may receive interference from the frequency.
Connection between the SC board and the SS board SS board (SC3-SS3) TC-P42X1 (HD Model) New No LED on the SS board New New No STB5V jumper on the SS board A board location New Slide #20
Technical Changes (TC-P42X1) New No D board No SD Card Slot board (GS) These circuits are now part of the A board No Fan Drive board (PB) The A board is now located below the SS board. SS11 besides providing Vsus to the SS board, now it also provides P15V Vda is now connected directly to the C board (P35 to C25). It is no longer routed thru the SS board. There is no STB5V switching jumper on the SS board (SS34). The jumper is now on the P board (P34) There is no relays click at plug in.
S – Series (Full-HD) Slide #22
Connectors/Boards Location (TC-P42S1) Slide #23
Boards Description Board Description Board Description A Speaker out, Sound Processor, AV Terminal, AV Switch, DC-DC Converter, Digital Signal Processor, Microcomputer, HDMI Interface, Peaks Lite 2, Full HD, (Newly Added SD Card Slot, Fan Control, Format Converter, Plasma AI, Sub-Field Processor) P Power Supply C1 Data Driver (Right) S Power Switch C2 Data Driver (Left) SC Scan Drive GK Key Switch (CH UP, CH DWN, VOL UP, VOL DWN, MENU, INPUT/OK SD Scan Out (Lower) K Remote Receiver, Po
Standby Operation Slide #25
Standby Circuit Operation 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 connectors P7 (Pin 5) and P25 (Pin 9). Connector P25 is connected to connector A25 on the A board and connectors P6 and P7 are both connected to connector A6 on the A board. The STB5V connected to A25 is not used during standby operation. The STB5V from pin 5 of connector P7 is connected to pin 13 of connector A6 and is applied to a 3.
Power On Slide #27
Power On Operation The power command from the power switch on the S board or the remote control receiver on the K board is provided to the Main CPU on the A board (IC1100) thru connector A1. The CPU on the A board outputs the “TV_SUB_ON” Command (3.2V) and the PANEL_STB_ON” command (3.2V). The “TV_SUB_ON” command is provided to pin 6 of connector P7 of the power supply through pin 14 of connector A6 of the A board to develop the F_STB+15V.
Sub-Voltages Slide #29
Sub-Voltages Distribution On previous generations these voltages were present for approximately 15 seconds after connecting the TV to the AC line. This does not apply to this year’s models. These voltages are called sub-voltages and they are only used by the A board. The sub-voltages are developed when the power is turned on. The F+15V from the P board is the source that supplies the DC-DC converter circuit (IC5401, IC5603 and IC5401) in the A board. The A board outputs 9V, 5V, 3.3V, 1.8V.
10 blinks Condition Troubleshooting Since the Sub voltages are only present after the power has been turned on, there will not be a 10 blinks condition at plug-in for the 2009 models. These 3 conditions can cause the TV to shutdown and the power LED to blink 10 times 1. Missing/Shorted F_STB_15V, SUB9V, SUB5V, and BT30V 2.
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. 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.
SOS Blinking Timing Chart Slide #33
SOS Detect Block Diagram (TC-P42S1) Slide #34
Panel Drive SOS Detect Block Diagram (TC-P42S1) Slide #35
Panel Drive SOS Detect Block Diagram (TC-P42X1) Slide #36
Panel MPU SOS Detect • • • • • • • 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 there is an over voltage, a short or a drop in any of the voltage lines. Also the shutdown circuit is triggered when the fans are drawing more current than normal. Normally the CPU of the D board and the CPU of the A board detect when a shutdown condition has been triggered.
Panel MPU SOS Detect (Continue) 4 Blinks SOS: When an over voltage condition of the voltage lines from the power supply occurs, pin 12 of connector P25 goes high. This high is provided to pin 67 of IC9003 of the A board triggering the “POWER SOS” circuit. When this happens, the TV shuts down and the power LED blinks 4 times. Primarily the P board causes 4 blinks, followed by the A board. 5 Blinks SOS: Pin 60 of the CPU IC9003 monitors the 5V line. During normal operation, pin 60 is kept high.
System MPU SOS Detect 10 Blinks SOS: IC5401 generates the SUB9V, IC5607 generates the SUB5V, and IC5480 generates the BT30V. The SUB9V, BT30V, and SUB5V from these ICs are monitored by IC1100. Any abnormality on these voltages (Including the F_STB15V), triggers the shutdown circuit and the MPU shuts down the unit. The power LED blinks 10 times. 11 Blinks SOS: The ventilation fans are monitored for proper operation.
2 Blinks Error Code These 3 conditions can cause the TV to shutdown and the power LED to blink 2 times 1. Missing P15V 2. A short of the P15V 3.
Troubleshooting 2 Blinks Error Code When troubleshooting a PDP TV that is shutting down and the power LED blinks 2 times: Find out if 15V is output at pin 1 of connector P6 of the P board. If 15V is present, it’s likely that the A board is defective. If no voltage is output, determine if this is caused by the P board or the boards using the P15V. The boards connected to the P15V can only affect the P15V if there is a short circuit drawing excessive current.
3 Blinks/4 Blinks Error Code 3 Blinks Error Code Since the IC (IC9805) that generates the monitored 3.3V for 3 blinks condition and the IC (IC9003) that detects this condition are both located on the A board, then the A board is the only suspect when the TV shuts down and the power LED blinks 3 times. Replace the A board. 4 Blinks Error Code Primarily the P board causes 4 blinks, followed by the A board. To troubleshoot a 4 blinks condition, measure the voltage at pin 12 of connector P25.
5 Blinks Error Code These 4 conditions can cause the TV to shut down and the power LED to blink 5 times 1. Missing P5V 2. A short of the P5V 3. A short of the Vda line (Note: missing Vda from the P board does not cause 5 blinks) 4.
Troubleshooting a 5 Blinks Error Code When troubleshooting a PDP TV that is shutting down and the power LED blinks 5 times: Find out if pins 1 or 2 of connector P35 are shorted to ground. If shorted, possibly the panel is bad. If there is no short circuit, proceed to check the P5V line. Find out if 5V is output at pin 5 of connector P25 of the P board. If no voltage is output, measure resistance between pin 5 of connector P25 and ground (Chassis).
6 Blinks Error Code (TC-P42S1) The Scan and Sustain voltages on the SC and SS boards are monitored by an SOS Detect circuit. The energy recovery circuit in the SC board is monitored by a comparator (Error detect IC16581). The output voltage is compared to 2 reference voltages derived from the P15V. If the output of this circuit drops below 5.2 or goes above 11.8V, the output of the comparator IC6581 goes high to trigger the “Energy Recovery” SOS line. This high is provided to the Panel CPU on the A board.
6 Blinks Error Code (TC-P42X1) Slide #46
6 Blinks Error Code Circuit Explanation The sustain drive circuit on the sustain board is not a complete circuit. There is a part of this circuit in the SC board. The cable between connector SS3 on the sustain board and SC3 on the scan board links these 2 circuits The section of the sustain drive circuit located on the scan board uses Vsus for complete operation of the sustain output circuit.
DRV RST Block Diagram (TC-P42S1) Slide #48
Driver Reset Circuit Operation The DRV RST circuit of the A board is used to monitor the physical connection of the A board to the C board. DRV RST input to IC9500 and IC9003 must be high for the unit to operate. The A board provides the 5V source needed to power the C boards. On the C1 board and the C2 board, the 5V is routed back to the D board via connector C11/A31, C21/A32 to activate the 5V SENSE circuit.
DRV RST Block Diagram (TC-P42X1) Slide #50
7 Blinks Error Code The SC board has 2 SOS detect circuits, energy recovery and floating ground section. When the energy recovery circuit is triggered, the TV shuts down and the power LED blinks 6 times. The floating ground circuit monitors the scan circuit output, the 15V_F, the scan_pro, Vscan, and the physical connection between the SC board and the SU/SD board (CHA). If any abnormality occurs on any of these lines or Vsus is missing, the TV shuts down and the power LED blinks 7 times.
8 Blinks Error Code (TC-P42S1) Slide #52
8 Blinks Error Code Circuit Explanation There is an extra SOS Detect circuit in the Sustain board. This circuit is used to monitor for physical connection between the panel and the SS board. Under normal condition, Q16280 is on. When Q16280 is on, a low is provided to the anode of D16280 (D280). If one of the FPC cables is open, Q16280 turns off and a high is provided to the anode of D16280 (D280). This high is provided to pin 66 of the CPU in the A board.
8 Blinks Error Code (TC-P42X1) SS_Flexible Printed Circuit (FPC)_Detect (SOS8_SS) (TC-P42X1) Slide #54
8 Blinks Error Code (TC-P42X1) Circuit Explanation On this model, only the circuit used to monitor for physical connection between the panel and the SS board is used to trigger an 8 blinks condition. The energy-recoverycircuit portion used to monitor the operation of the sustain drive circuit is located on the SC board. Under normal condition, Q16280 is on. When Q16280 is on, a low is provided to the anode of D16280 (D280).
11 Blinks Error Code Slide #56
11 Blinks Circuit Explanation The ventilation fans are monitored to be sure they are operating properly. If one of the fans stops or its resistance increases, the resulting current change is applied to pin 36 of the main CPU. The fan drive circuit is located in the A board. The Panel-Main-On command from pin 75 of the Panel MPU (IC9003) turns on the fan control IC (IC5740). An increase in temperature of the TV is detected by the temperature sensor (IC4800).
Boards Isolation Procedure Caution: Do not let the TV run for more than 30 seconds while connectors or boards are disconnected.
SC Board Isolation Procedure (TC-P42S1) When the SC board is suspected to be the cause of a 6 or 7 blinks condition, it can be isolated for confirmation. To isolate the Scan Drive Section (SC, SU, and SD board), remove connectors SC2 (Vsus) and SC20 (P+15V, P+5V, and scan pulses) from the SC board and connector SS33 from the sustain board.
SS Board Isolation Procedure (TC-P42S1) To determine if the Sustain board is causing a 8 blinks condition: Unplug connector SS11 and connector SS33. Press the power switch. If the TV no longer blinks 8 times, then the SS board is defective. Note 2: In order to get to SS33, the A board has to be removed. Remove the 3 screws holding the A board block assembly in place.
SS Board Isolation Procedure (TC-P42X1) To determine if the Sustain board is causing a 8 blinks condition: Unplug connector SS23. Press the power switch. If the TV no longer blinks 8 times, then the SS board is defective. Note 2: In order to get to SS23, the A board has to be removed. Remove the 3 screws holding the A board block assembly in place.
SU/SD Boards Isolation Slide #62
SU and SD Boards Isolation Procedure Beginning last year (2008), the new plasma models are now designed not to turnon 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 floats point “CHA” and Q16471 turns on. IC16561 outputs a high to pin 21 of connector SC20 triggering shutdown.
SU Board Isolation The 2008 and 2009 plasma models are now 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 SC41/SU41, SU11/SD11, and SC42/SD42, opens the interlocked connection between VF_GND and CHA on the SC board. This floats point “CHA” and a high is output to connector SC20 triggering shutdown. To isolate the SU board: • Remove the 2 VF_GND screws on the SU board only.
SD Board Isolation The 2008 and 2009 plasma models are now 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 SC41/SU41, SU11/SD11, and SC42/SD42, opens the interlocked connection between VF_GND and CHA on the SC board. This floats point “CHA” and a high is output to connector SC20 triggering shutdown. To isolate the SD board: • Remove the 2 VF_GND screws on the SD board only.
Signal Process Block Slide #66
Signal Process Block Diagram Slide #67
Signal Process Explanation The main function of the A board is to select and process one of the incoming video signals. Video inputs 1 and 2, Component Video Inputs 1 and 2, PC input, and the composite video output of the tuner are all are connected to IC3001 for selection. The video output signal of the switch can be in any of the three formats: Video, Y/C, or Y, Pb, Pr. The selected output enters IC8001.
Service Notes Slide #69
Service Mode While pressing [VOLUME ( - )] button of the main unit, press [INFO] button of the remote control three times within 2 seconds. 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 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 themain mainunit, unit,press pressthe the“OK” “OK”button buttonon onthe the remote 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.
Self Check Menu Slide #72
Reset Procedure Note: All customer programmed parameters will be erased. Reset forces the TV to factory shipment setting. To reset the TV: Press and hold the “VOLUME ( - )”button on the TV and press the “MENU” button on the remote control for more than 3 seconds. To Exit: Disconnect the AC cord from wall outlet.
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 #77
