To Next PageTo Next PageWhy my Panasonic SA-AKX72PH Stereo System set cannot ON?
If your Panasonic Stereo System won't turn on, it might be due to a faulty AC cord or a loose connection. It can also be due to P5701 solder crack, dry joint or open fuse F1, PC5702/PC5799 solder crack, dry joint, short circuit, open circuit, or faulty IC5701 or IC5799. If the AC cord is faulty, please refer to section 7.2.1 Fig.1 SMPS P.C.B..
What to do if my Panasonic SA-AKX72PH Stereo System can ON then F61?
If your Panasonic Stereo System turns on but then displays F61, the cause may be a faulty speaker unit, loose connection, or a short. You can check PWM output at pin 10, 14 of D-Amp IC; check + VDD/SS supply at pin 4 & 20 of D-Amp IC; check pin 1 (OSC) & pin 23 (MODE) of D-Amp IC; check pattern crack and solderability; or the D-Amp IC5000, IC5200, IC5400 may be defective. If the speaker unit is faulty, please refer to section 7.2.3 Fig 3 D-Amp P.C.B..
What to do if my Panasonic SA-AKX72PH Stereo System can ON then F76?
If your Panasonic Stereo System turns on and then displays F76, it could be due to a short circuit between Pin 14 and Pin 15, Pin 15 and Pin 16, or Pin 16 and Pin 17. Also, check the cable wire connection between connector ZJ2007(At Main P.C.B) & connector CN5802(At SMPS P.C.B). The Voltage Regulator IC (IC2010) & Switching Regulator IC (IC2011) may be faulty, or there may be a PC5720 solder crack, dry joint, short circuit, or open circuit. If the short circuit is between Pin 14 and Pin 15 or PC5720 solder crack, refer to section 7.2.1 Fig.1 SMPS P.C.B..
General| Bluetooth | Yes |
|---|---|
| USB Playback | Yes |
| FM Radio | Yes |
| Number of Discs | 1 |
| USB port | Yes |
| Equalizer | Yes |
| Speaker Configuration | 2.0 |
| Input Sensitivity | 500 mV |
| Signal to Noise Ratio | 80 dB |
| Power Supply | AC 220-240V, 50/60Hz |
| Type | Mini System |
| Supported media types | CD, MP3 |
| Speaker Type | 2-way |
General guidelines for servicing the unit.
Pre-use check for specific models (PH only).
Precautions to be taken when replacing fuses.
Preparations and cautions before starting repair or adjustment.
Explanation of the unit's protection circuitry and its function.
List and description of safety-critical components.
Techniques to prevent ESD damage to sensitive electronic components.
Cautions regarding laser diode handling and potential exposure.
Service cautions related to lead-free solder and environmental regulations.
Specific handling precautions for the traverse unit, especially the optical pickup.
General information and guidance for service personnel.
Operation guide for the buttons on the main unit.
Operation guide for the buttons on the remote control.
Information regarding supported media formats like CDs and MP3s.
Procedure to carry out cold-start or initialize to shipping mode.
Table detailing doctor mode items, descriptions, and key operations.
Process flow charts for reliability testing of the CD mechanism unit.
Overview of self-diagnostic modes and how to check system versions and error codes.
Table listing error codes and their diagnostic contents for self-diagnosis.
Procedures for entering and cancelling the sales demonstration lock mode.
Guide for checking procedures when detecting F61 or F76 errors.
Illustrations showing the location of parts on PCBs.
Detailed description of the D-Amp IC's operation and control pins.
List of necessary service tools and equipment for preparation.
Visual flow chart illustrating the disassembly sequence of components.
Diagram showing the locations of main components and PCBs within the unit.
Step-by-step instructions for removing the top cabinet assembly.
Instructions for disassembling the Tuner Printed Circuit Board.
Instructions for disassembling the front panel unit.
Instructions for disassembling the Jupiter Printed Circuit Board.
Instructions for disassembling the Panel Printed Circuit Board.
Instructions for disassembling the Remote Sensor Printed Circuit Board.
Instructions for disassembling the USB Printed Circuit Board.
Instructions for disassembling the Music Port Printed Circuit Board.
Instructions for disassembling the CD lid mechanism.
Instructions for disassembling the Main Printed Circuit Board.
Procedure for replacing the Voltage Regulator IC (IC2010).
Instructions for disassembling the D-Amp Printed Circuit Board.
Procedure for replacing the Audio Digital Amp IC (IC5000).
Procedure for replacing the Audio Digital Amp IC (IC5400).
Procedure for replacing the Audio Digital Amp IC (IC5200).
Instructions for disassembling the SMPS Printed Circuit Board.
Procedure for replacing the Switching Regulator IC (IC5701).
Procedure for replacing the Rectifier Diode (D5702).
Procedure for replacing the Rectifier Diode (D5801).
Procedure for replacing the Rectifier Diode (D5802).
Procedure for replacing the Rectifier Diode (D5803).
Instructions for disassembling the CD Mechanism Unit (BRS1C).
Instructions for disassembling the rear panel.
Instructions for disassembling the Voltage Selector PCB.
Step-by-step instructions for disassembling the traverse unit.
Step-by-step instructions for assembling the traverse unit.
Instructions for disassembling the CD Servo Printed Circuit Board.
Procedures for checking and repairing the Main PCB.
Procedures for checking and repairing the D-Amp PCB.
Procedures for checking and repairing the Panel PCB.
Procedures for checking and repairing the Jupiter PCB.
Procedures for checking and repairing the SMPS PCB.
Procedures for checking and repairing the CD Servo PCB.
Voltage and waveform data for the CD Servo PCB.
Voltage and waveform data for the Main PCB (part 1).
Voltage and waveform data for the Main PCB (part 2).
Voltage and waveform data for the Main PCB (part 3).
Voltage and waveform data for the Panel PCB.
Voltage and waveform data for the Music Port PCB.
Voltage and waveform data for the Tuner PCB.
Voltage and waveform data for the Jupiter PCB (part 1).
Voltage and waveform data for the Jupiter PCB (part 2).
Voltage and waveform data for the Jupiter PCB (part 3).
Voltage and waveform data for the D-Amp PCB.
Voltage and waveform data for the SMPS PCB.
Table illustrating specific waveform measurements.
High-level block diagram illustrating the system's overall architecture.
Block diagram detailing the D-Amp circuit and its connections.
Block diagram illustrating the servo and system control functions.
Table listing terminal functions for key Integrated Circuits.
Block diagram illustrating the audio signal path and components.
Block diagram illustrating the power supply circuit and its outputs.
Notes, symbols, and conventions used in the schematic diagrams.
Schematic diagram detailing the CD Servo circuit.
Schematic diagram illustrating the main circuit board.
Schematic diagram of the Panel circuit.
Schematic diagram of the Music Port circuit.
Schematic diagrams for Remote Sensor, USB, Tuner, and Voltage Selector circuits.
Schematic diagram detailing the Jupiter circuit.
Schematic diagram detailing the D-Amp circuit.
Schematic diagram detailing the SMPS circuit.
Illustration of the CD Servo Printed Circuit Board layout.
Illustration of the Main Printed Circuit Board layout.
Illustration of the Panel Printed Circuit Board layout.
Illustrations of Music Port, Remote Sensor, USB, and Tuner PCBs.
Illustration of the Jupiter Printed Circuit Board layout.
Illustration of the D-Amp Printed Circuit Board layout.
Illustration of the SMPS and Voltage Selector PCB (PH only).
Illustration of the SMPS PCB (PN only).
Terminal functions and descriptions for the main microprocessor IC.
Terminal functions and descriptions for the FL Driver IC.
Visual exploded view and list of mechanical replacement parts.
Comprehensive list of electrical replacement parts with their details.
