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Technical Guide 2009 WiHD Plasma TV GPF12ZU Chassis, 12 Generation Applies to model: TC-P54Z1 Image Model TC-P54Z1 Panasonic Service and Technology Company National Training Slide #1 TTG090604CP/090604...
Table Of Contents Subject Slide Subject Slide Topics Sub-Voltages Applied to Signal Process Circuit Introduction Panel Drive Start-up Circuit Components Model Number Panel Drive Start-up Circuit Precautions Panel Drive Voltages Distribution Features Vsus Distribution Tuner Box Vda Distribution (RF) Radio Frequency Remote Control Display Unit Connectors Location Connection SOS Detect (Shutdown)
Wireless HD technology can transmit full HD video signals, and audio and control signals wirelessly. This wireless transmission system was developed by Panasonic in collaboration with SiBEAM Inc. It can transmit uncompressed 1080p full HD content wirelessly with no deterioration in quality by using 60GHz millimeter wave radio.
Components Model Number Ref# Model Number Description TC-P54Z1 As System TC-P54Z1M Display Unit TU-Z100U Tuner Box SP-54Z1U Speaker ST-54CF1WS Pedestal TU-WH1U Wireless Unit (3 – 7 – 8 – Remote Control) TU-WHT1U Wireless Unit (Transmitter) TU-WHR1U Wireless Unit (Receiver) Slide #6...
Precautions Radio waves from this TV may interfere with medical devices and automatic control devices. • Do not place this TV in any medical institutions or locations with medical devices. • Do not use this TV near any automatic control devices such as automatic doors or fire alarms. •...
Features High Picture Quality Smart Networking ® • THX Certified Display • Cable-free Design with WirelessHD™ • Moving Picture Resolution 1080 Lines • VIERA CAST • 600Hz Sub- field Drive • VIERA Image Viewer Photo and Video • Infinite Black with Over 2,000,000:1 (JPEG/AVCHD/MPEG2) Dynamic Contrast (Native 40,000:1) •...
Tuner Box The TV itself has no ports, it connects wirelessly to a separate box that handles all wired connections. FRONT The front side of the box has a plastic panel, under which are its ports. The front side has an SD card slot, HDMI port, S-Video port, composite cable ports, and a PC input.
(RF) 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. The TV comes with a RF Remote Control.
Connection This Unit is designed to be connected wirelessly with the Tuner Box, but it can also be connected to the Tuner Box via the HDMI cable. Slide #11...
Wired Connection The Display Unit can be connected directly to the Tuner Box using HDMI cable If the TV is not operating because the Wireless Unit is defective, connect the Display Unit to the Tuner Box directly using the HDMI cable. The TV can be operated while the Wireless unit is been replaced. Slide #13...
Display Unit Only (Tuner Box Disconnected) When the Display Unit is connected only to the WiHD Receiver, the power can be turned ON and Off only with the IR remote control when it’s pointed at the Display Unit. “No signal from tuner unit. Please check the connection between tuner unit and monitor” displayed 20 seconds after the power button is pressed.
Normal Wireless Connection The WiHD cable and the HDMI cable are used to connect the Display Unit to the wireless Receiver The special WiHD cable and the HDMI cable are used to connect the Tuner Box to the wireless Transmitter Note: Do not connect any other device than Wireless Unit to the HDMI terminal of the Display Unit/Tuner Box.
Reception Status LEDs Transmitter Unit and Receiver Unit. Off: Power off Red: Power on and no communication Receiver Green: Power on and good communication Red (blinking): Indicates malfunction Orange: Power on and communication problem (Transmitter Only) Transmitter Remote Control Transmission Range The RF remote control should be used within 22 feet from the Tuner Box.
Transmitter/Receiver Board Layout TZTWH01JSUU The initial security settings for copyright protection are done at the factory. For this reason, The WT and WH boards in the Transmitter and the WR board in the Receiver should be replaced at the same time. The part number for the “TRANSMISSION/RECEIVE UNIT”...
Wired Connection When the Display Unit is directly connected to the Tuner Box via the HDMI cable, the IR and RF remotes can operate all the functions of the TV. Note: The WiHD cable does not have to be connected when the Display and the Tuner are wired connected.
Digital Signal Processing (Tuner Box) Circuit 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 connected to IC3001 for selection.
Display Unit - Digital Signal Processing (Wired) Circuit Explanation When the Tuner is wired to the Display, TMDS Data Clock, DDC IIC, and HDMI CEC from the Tuner are connected to the Display Unit via the HDMI cable. The TMDS data and the DDC-IIC are provided to an Equalizer circuit in the GH board to equalize the signals encoded in the transition-minimized differential signaling (TMDS) format.
Tuner Box STB5V – STB3.3V Distribution The STB5V in the Tuner Box is generated when AC is applied to the P board. The STB5V enters the A board through pin 11 of connector A10. STB5V is provided to the RM board (RF Module) and the DH board (HDMI Out). STB5V is also connected to the 3.3V regulator IC5480.
Wired Connection (HDMI Only) Note: Turning on the Display’s Main power switch, turns on the Tuner Box. Turning it off does not turn off the Tuner Box. (This is true for wired or wireless connection). Slide #31...
Wired Connection (HDMI Only) The Unit can also be connected using the HDMI cable directly connected from the Tuner to the Display. Both, the RF and the IR remote controls can be used to operate the unit. The remote signal from the RF remote control is received by the Tuner Box and the IR signal from the IR remote control is received by the Display Unit.
Wireless Connection (Circuit Explanation) The signal is wirelessly transmitted in 2 different frequencies. The video and audio signal are converted to TMDS (Transition Minimized Differential Signaling) in the DH board of the Tuner Box. The TMDS data is converted to RF signal and is transmitted as a 60GHz RF signal from the WT circuit in the WiHD transmitter module.
Power Supply Voltages (Display Unit) The power supply outputs STB5V, F+15V, Vsus, Vda, P15V, and P5V. These voltages are necessary to drive the different circuits in the TV. In order to provide protection to the TV, these voltages are monitored. If any abnormality is detected, the power supply outputs a shutdown voltage (SOS4_PS) to the System CPU to disable the Unit.
Power Supply Voltages Distribution STB5V The STB5V is the first voltage generated by the (P-Multi) power supply. This voltage is used to activate the System and the Panel microprocessors in the DA board. STB5V is also used by the GH board (HDMI IN Board) and the KA board (IR Remote Receiver). F+15V The F+15V is the second voltage generated by the (P-Multi) power supply.
Microprocessors Commands TV SUB ON (F-STBY-ON), PANEL-STB-ON, and PANEL MAIN ON The STB5V is generated by the power supply when the TV is connected to the AC line. The STB5V is output from the power supply when the Main switch on the TV is set to the On position. •...
Standby (Display’s Main Switch Off) When the TV is plugged in, AC is provided to the “P-MULTI and P-VSUS” boards. AC is applied to the standby circuit in the “P-MULTI” power supply via connector P52 to produce STB5V. STB5V is connected to pin 1 of connector P55 on the “P-VSUS” power supply. When the Main power switch is off, there’s no STB5V provided to the DA board.
Signal Process Start-up Circuit F+15V is the only voltage needed from the power supply to activate the signal process circuit. F+15V is the source of a DC-DC converter circuit in the DA board which output supplies all the different circuits involved in the processing of the signal. Note: Turning on the Display’s Main power switch, turns on the Tuner Box.
Signal Process Start-up Circuit The power MPU IC701 on the P-Multi board receives STB5V when the unit is plugged in to the AC line. When the display’s main switch is turned on, the voltage at pin 25 of the power MPU (IC701) changes from 4.7V to 0V.
F+15V/SUB-Voltages Distribution The F+15V from the power supply is connected to pins 23, 25, and 27 of connector A6 on the A board The F+15V from the P board is the source that supplies the DC-DC converter circuit (IC25600, IC25601, IC25300, and IC25312). This circuit outputs SUB5V, SUB3.3V, SUB1.8V, SUB1.2V, GC6-3.3V, GC6-1.8V, GC6-1.2V respectively.
Sub-voltages Applied to Signal Process Circuit The signal processing circuit becomes energized when the sub-voltages are applied to IC24510, IC2800, and IC25100. Slide #47...
Panel Drive Start-up Circuit After the confirmation of the voltages generated as the result of the 3.2V “TV-SUB-ON” command from pin 52, the System MPU IC21100 outputs the “PANEL-STB-ON” command. The 3.2V “PANEL-STB-ON” command from pin 30 of IC21100 is applied to the control pin (27) of IC29004.
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. Slide #54...
Power LED Response to Shutdown Condition Number Blinking Time Items Blinking LED Suspected Board of Blinks Tuner Display Tuner Display Monitored Unit No particular check point Panel Status DA -Board STB 5V Sense Time out P-Board DA-Board 15 V SOS SC-Board SS-Board DA –Board...
Power LED Response to Shutdown Condition Number Blinking Time Items Blinking LED Suspected Board Tuner Display Tuner Box Display Monitored Blinks Unit A -Board 9V/5V/3.3V DA-Board GH–Board Tuner Power SG-Board PB-Board DA-Board Power SOS KA-Board A –Board B o a r d Fan SOS Fans P-Board...
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.
Panel MPU SOS Detect (Continue) 4 Blinks SOS: When an over voltage condition of the voltage lines from the power supply occurs, pin 18 of connector A6 goes high. This high is provided to pin 67 of IC29003 of the DA board triggering the “POWER SOS”...
System MPU SOS Detect 10 Blinks SOS: IC25600 generates the SUB5V and BUB3.3V, IC25601 generates the SUB1.8V and SUB1.2V, IC25300 generates GC6-3.3V, and IC25312 generates GC6-18V and GC6-1.2V. These voltages are monitored by a SOS detect circuit. Any abnormality on these voltages triggers the shutdown circuit and the MPU shuts down the unit.
Tuner Box SOS Detect Block Diagram Note: This block diagram is to be used for reference. Replace the Tuner Box for shutdown problems caused by the Tuner Box. (10 or 11 Blinks) Slide #61...
Troubleshooting 2 Blinks Error Code These 3 conditions can cause the TV to shutdown and the power LED to blink 2 times Missing P15V A short of the P15V Wrong diagnostic by the DA board When troubleshooting a PDP TV that is shutting down and the power LED blinks 2 times: Find out if 15V is output at pins 1~5 of connector P6 of the P board.
Troubleshooting 3 Blinks Error Code These 3 conditions can cause the TV to shutdown and the power LED to blink 3 times Missing P3.3V A short of the P3.3V Wrong diagnostic by the DA board When troubleshooting a PDP TV that is shutting down and the power LED blinks 3 times: Find out if 3.3V is output at R126 (R17126 on the service manual) .
Troubleshooting 4 Blinks Error Code The voltage generated by the power supply are monitored by IC701. If there is an increase in voltage, IC701 outputs a high to the DA board. Primarily the P board causes 4 blinks, followed by the DA board. To troubleshoot a 4 blinks condition, measure the voltage at pin 18 of connector DA6 in the DA board.
Troubleshooting 5 Blinks Error Code These 4 conditions can cause the TV to shut down and the power LED to blink 5 times Missing P5V A short of the P5V A short of the Vda line (Note: missing Vda from the P board does not cause 5 blinks) Wrong diagnostic by the DA board When troubleshooting a PDP TV that is shutting down and the power LED blinks 5 times: Vda short circuit check...
6 Blinks Error Code 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”...
Troubleshooting 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).
Troubleshooting 8 Blinks Error Code 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).
Troubleshooting 9 Blinks Error Code A 9 blinks error code is normally caused by a defective DA board. Check for metal object inside the SD card slot. Also double check for loose connection around the DA board. Slide #74...
Troubleshooting 10 Blinks Error Code These conditions can cause the TV to shutdown and the power LED to blink 10 times Missing/Shorted F_STB_15V, SUB5V, SUB3.3V, SUB1.8V SUB1.2V, GC6-3.3V, and GC6- 1.8V, and GC6-1.2V. Wrong diagnostic by the DA board Note: When taking voltage reading, place the voltmeter probe at the test point, component, or connector’s pin indicated before connecting the TV to the AC line.
Troubleshooting 11 Blinks Error Code 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 61 of the main CPU. The fan drive circuit is located in the A board.
12 Blinks Error Code Sound processing and adjustments are performed by IC24510. The 4 channels PWM audio output of the IC is applied to the 2 audio power amplifiers (IC22301 and IC22302). The PWM signals of the power amplifiers are output to the right and left channel speakers for sound reproduction. D22017 monitors the audio power amplifier ICs (IC22301 and IC22302) for excessive current drain.
Service Mode (Tuner) Tuner box Service Mode. How to enter: (Use the RF Remote Control) Press and hold the Volume [-] button of Tuner Box and while holding down this button, press the [Info] button on RF remote control 3 times within 2 seconds. Display screen (Blue background) Picture adjustment Option setting...
Service Mode (Display Unit) (Monitor Mode) Display Unit Service Mode. There are 2 ways to enter the Display Service Mode: • By selecting “MONITOR” from the Tuner Box Service Mode menu (Using the RF remote control) • By pressing the VOL – button on the Display Unit and the “INFO” button on the IR remote control 3 times within 2 seconds.
Display Unit Service Mode (Display Unit Unique Mode) Display Unit Service Mode. The Display Unit does not have to be connected to the Tuner Box to enter the Display Service Mode Use this procedure when performing white balance adjustment. How to enter: Use IR Remote control.
Self Check/Reset (Tuner Box) How to enter: Use RF Remote control. Self check indication only: Press volume [ - ] button of tuner box and [OK] button of RF remote control at the same time for more than 3 seconds. Reset: (This will cancel the RF remote control registration) Note: The RF remote control won’t work after resetting the Tuner Box.
Self Check (Display Unit) How to enter: Use RF Remote control. After setting to Monitor Mode, Self check indication only: Press volume [ - ] button of tuner box and [OK] button of RF remote control at the same time for more than 3 seconds. Reset: Press volume [ - ] button of tuner box and [MENU] button of RF remote control at the same time for more than 3 seconds.
Wireless Unit Replacement (TX/RX modules + RF remote control) The RF remote control is included when the TX module is ordered. Therefore when TX and RX are replaced, the RF remote control is also changed. The TX and the RX are automatically paired when they are connected to the Tuner and the Display Unit respectively.
RF Remote Control First Time Registration Registration of RF remote control to the tuner box is required before operating the TV How to register First registration after purchase Turn the power on and when the registration screen appears, press the Menu button on the Tuner Box. Press the “OK”...
How to Register Additional Remote Controls A new Remote Control has to be registered first before it can operate the unit. Press and hold the “MENU” button on the Tuner Box until the “Remote Control Registration” menu appears. Use the “VOL -” key of the tuner box to select “Yes” when the “Register additional remote control?” appears.
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.
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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."...
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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."...