To Next PageTo Next PageWhy won't my Panasonic SA-PT480PH Home Cinema speakers turn on?
If your Panasonic Home Cinema speakers won't turn on, it could be due to a faulty AC cord or loose connection. In this case, refer to SMPS P.C.B. Fig. 1. Other potential causes include a solder crack in P5701, an open F1 fuse, issues with PC5702/PC5799 (like solder cracks, dry joints, short circuits, or open circuits), or faulty IC5701 or IC5799.
Why do my Panasonic Home Cinema speakers turn on, work for a bit, then show F76?
If your Panasonic Home Cinema speakers turn on, work for a while, and then display F76, it could be due to improper contact between D5802 and the heatsink, or the set triggering temperature protection.
General| Total Power Output | 1000W |
|---|---|
| Speaker Configuration | 5.1 Channel |
| USB Playback | Yes |
| HDMI Output | 1 |
| Type | Home Theater System |
| Surround Sound Formats | Dolby Digital, DTS |
General guidelines for servicing, including lead dress, protective devices, and leakage current checks.
Instruction to disconnect mains cord before adjusting voltage selector.
Procedures and cautions before repair, including capacitor discharge.
Caution to replace fuses only with the same type.
Information about protection circuitry operation and troubleshooting.
List of critical safety parts and importance of using manufacturer-specified parts.
Techniques to reduce component damage from static electricity during handling.
Cautions regarding laser radiation exposure and handling of the laser diode pickup unit.
Description of lead-free solder (PbF) and service cautions for repair work.
Cautions for handling the traverse unit, especially the optical pickup and laser diode.
Specific precautions for handling the optical pickup unit to prevent ESD damage.
Importance of grounding and worktable grounding procedures.
Procedure using an anti-static wrist strap to discharge static electricity.
Information about the service manual's content and ordering parts.
General specifications like power supply, dimensions, mass, operating conditions.
Specifications for RMS Output Power and PMPO Output Power in Dolby Digital mode.
Specifications for FM tuner presets, frequency range, antenna terminals, digital audio input, and mic jack.
Information about playable discs, file format support, and picture resolution.
Explanation of key button functions on the remote control for various operations.
Explanation of key button functions on the main unit for various operations.
Guidance on connecting speakers, paying attention to color and polarity.
Features and operation of VIERA Link for connected AV equipment control via HDMI.
How to select audio output and control speaker behavior based on input and mode.
How TV speakers are activated and audio output is selected.
Instructions for connecting and using iPod/iPhone, including playback controls and charging.
Details on playable media formats and disc playability.
Information on commercial discs and recorded discs, including handling precautions.
Supported file extensions for WMA, MP3, JPEG, MPEG4, and DivX formats.
Procedure to initialize the unit to shipping mode by unplugging and pressing the power button.
Information on activating service modes via button combinations on the main unit and remote control.
Details on error code check, jitter check, and initial laser drive current setting.
Information on DVD laser drive current measurement, region display, and CPPM/CPRM keys check.
Details on DVD firmware version display, timer checks, and spindle motor operation timer reset.
Procedures for entering self-diagnostic mode and checking/clearing error codes.
Table listing mechanism error codes, diagnosis contents, and automatic FL display.
Table listing DVD module error codes related to HDMI communication and firmware.
Error codes F61 and F76 related to power supply and digital amplifier issues.
Function to prevent disc ejection and operation for sales demonstrations.
Procedure to prohibit disc removal and operation by locking the unit.
Procedure to cancel the sales demonstration lock function.
Information and process flow for updating the unit's firmware.
Steps for collecting ROM files, loading the disc, and initiating the update process.
Process flow for checking ROM file types and update necessity.
Checking procedures for error codes F61 and F76 related to SMPS P.C.B. faults.
Illustration showing the location of key components on the SMPS P.C.B.
Troubleshooting steps for common problems with the traverse unit and main P.C.B.
Troubleshooting steps for HDMI AV output issues like no display or audio.
Further troubleshooting steps for HDMI AV output problems like blank display or color issues.
General cautions regarding disassembly and assembly procedures, tools, and handling.
Visual flow chart illustrating the sequence of disassembly for various unit components.
Diagram showing the location of major components and printed circuit boards within the unit.
Step-by-step procedure for removing the top cabinet of the unit.
Procedure for removing the AC inlet printed circuit board.
Procedure for removing the voltage selector printed circuit board.
Procedure for removing the rear panel of the unit.
Procedure for removing the DVD mechanism unit from the main unit.
Procedure for installing the DVD mechanism unit back into the unit.
Step-by-step procedure for removing the front panel block assembly.
Procedure for removing the FL (Fluorescent Display) printed circuit board.
Procedure for installing the FL printed circuit board back into the unit.
Procedure for removing the power button printed circuit board.
Procedure for installing the power button printed circuit board.
Procedure for replacing the cradle lid, including disassembly steps.
Steps for disassembling the cradle lid.
Procedure for assembling the cradle lid onto the front panel.
Procedure for removing the iPod cradle assembly.
Procedure for fixing the iPod cradle assembly to the front panel.
Procedure for removing the iPod/iPhone printed circuit board.
Procedure for removing the USB printed circuit board.
Procedure for removing the microphone printed circuit board.
Procedure for replacing the DVD lid unit, including disassembly steps.
Steps for disassembling the DVD lid unit.
Procedure for assembling the DVD lid unit into the front panel.
Procedure for removing the front shield unit.
Step-by-step procedure for removing the main printed circuit board.
Steps for lifting and removing the main P.C.B. shield unit.
Procedure for removing the D-Amp (Digital Amplifier) printed circuit board.
Procedure for replacing the digital amplifier ICs, including disassembly steps.
Steps for disassembling the digital amplifier ICs.
Procedure for assembling the digital amplifier ICs onto the D-Amp P.C.B.
Procedure for removing the power printed circuit board.
Procedure for removing the SMPS (Switch Mode Power Supply) printed circuit board.
Detailed steps for removing the SMPS P.C.B., including releasing spacers and desoldering wires.
Procedure for replacing the switching regulator IC, including disassembly and assembly steps.
Steps for disassembling the switching regulator IC.
Procedure for replacing the rectifier diode, including disassembly and assembly steps.
Steps for disassembling the rectifier diode.
Procedure for assembling the rectifier diode onto the SMPS P.C.B.
Procedure for replacing the regulator diode, including disassembly and assembly steps.
Steps for disassembling the regulator diode.
Procedure for assembling the regulator diode onto the SMPS P.C.B.
Procedure for replacing the regulator diode, including disassembly and assembly steps.
Steps for disassembling the regulator diode.
Procedure for assembling the regulator diode onto the SMPS P.C.B.
Procedure for removing the cooling fan unit.
Steps for removing the fan unit from the rear panel.
Steps for removing the fan cover to access the fan.
Procedure for disassembling the traverse unit, referring to DVD mechanism unit instructions.
Procedure for assembling the traverse unit into the chassis.
Steps for slotting and placing the traverse unit into the mechanism chassis.
Steps for checking and repairing the main P.C.B., focusing on Side B.
Detailed steps for accessing and working on Side B of the main P.C.B.
Steps for accessing and working on Side A of the main P.C.B.
Procedures for checking and repairing the D-Amp P.C.B., focusing on Side B and Side A.
Steps for accessing and working on Side B of the D-Amp P.C.B.
Steps for accessing and working on Side A of the D-Amp P.C.B.
Procedures for checking and repairing the SMPS P.C.B.
Detailed steps for checking and repairing the SMPS P.C.B.
Procedures for checking and repairing the FL printed circuit board.
Table of voltage indication values for various points on the Main P.C.B.
Table of voltage indication values for various points on the Main P.C.B.
Table of voltage indication values for various points on the Main P.C.B.
Table of voltage indication values for various points on the Main P.C.B.
Table of voltage indication values for various points on the Main P.C.B.
Table of voltage indication values for various points on the Main P.C.B.
Table of voltage indication values for various points on the Main P.C.B.
Table of voltage indication values for points on the FL P.C.B.
Table of voltage indication values for points on the D-Amp P.C.B.
Table of voltage indication values for points on the D-Amp P.C.B.
Table of voltage indication values for points on the SMPS P.C.B.
Table of voltage indication values for points on the Power P.C.B.
Table of voltage indication values for points on the Mic P.C.B.
Visual representations of waveforms for various ICs, specifying voltage and time per division.
Visual representations of waveforms for various ICs, specifying voltage and time per division.
Visual representations of waveforms for various ICs, specifying voltage and time per division.
Block diagram illustrating the servo system of the main unit.
Block diagram of the main unit's system control, including micro-processor and peripheral circuits.
Block diagram of the main unit's up-conversion circuit, including HDMI transmitter.
Block diagram illustrating the audio signal path, including inputs and processing.
Continuation of the audio block diagram showing digital sound processor and echo circuit.
Block diagram showing the video signal path, including SDRAM and flash memory interfaces.
Block diagram detailing the digital audio signal processing and amplifier outputs.
Block diagram illustrating the analog video signal path, including input and output stages.
Block diagram of the power supply unit, showing AC input, transformers, and regulators.
Continuation of the power supply block diagram, showing voltage regulators and control circuits.
Schematic of the main circuit, showing DV5U LSI and connections.
Continuation of the main circuit schematic, showing SDRAM and flash memory interfaces.
Continuation of the main circuit schematic, showing video drivers and signal lines.
Continuation of the main circuit schematic, showing memory interfaces and address/data buses.
Continuation of the main circuit schematic, detailing signal lines and interface connections.
Continuation of the main circuit schematic, showing USB interface and other connections.
Schematic of the main HDMI circuit, showing HDMI transmitter and related components.
Schematic of the main MICON circuit, showing micro-controller and peripheral interfaces.
Continuation of the MICON schematic, showing A/D converter and DSP interfaces.
Further continuation of the MICON schematic, showing speaker output drivers.
Further continuation of the MICON schematic, showing power supply and regulator sections.
Further continuation of the MICON schematic, showing voltage regulators and DC detect circuits.
Further continuation of the MICON schematic, showing echo processor and headphone output circuits.
Schematic of the FL circuit, showing the display driver IC and associated components.
Schematic of the D-Amp circuit, showing digital amplifiers and PWM processors.
Continuation of the D-Amp schematic, showing output stages and DC detect circuits.
Further continuation of the D-Amp schematic, showing output stages and component connections.
Further continuation of the D-Amp schematic, showing output stages and thermal protection components.
Schematic of the SMPS circuit, showing switching power supply control and transformers.
Continuation of the SMPS schematic, showing voltage regulators and feedback circuits.
Schematics for the power supply, power button, and AC inlet circuits.
Schematics for the iPod/iPhone, USB, and voltage selector circuits.
Schematic of the microphone circuit, showing op-amps and echo processing.
Top-down view of the Main P.C.B. (Side A), showing component layout.
Top-down view of the Main P.C.B. (Side B), showing component layout.
Views of the FL, Power, Power Button, and AC Inlet PCBs.
Views of the D-Amp P.C.B. (Side A and Side B), showing component layout.
Top-down view of the SMPS P.C.B., showing component layout.
Views of the iPod/iPhone, USB, Voltage Selector, and Mic PCBs.
Terminal function description for the microprocessor IC, listing pins and their descriptions.
Terminal function description for the FL driver IC, listing pins and their functions.
Exploded view diagram and list of mechanical replacement parts for cabinet components.
Illustration showing the location of cabinet parts and their corresponding numbers.
Diagram showing the packaging of the unit and its accessories.
Detailed list of mechanical replacement parts with safety ref. numbers and descriptions.
