Panasonic SA-AKX34LM-K

Questions and Answers

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Billy JohnsonAug 1, 2025
How to fix a Panasonic SA-AKX34LM-K that cannot turn on?
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  Rita CampbellAug 1, 2025
  If your Panasonic Stereo System cannot be turned on, it might be due to a faulty AC cord or a loose connection, you can refer to Section 9.1.1 Fig. 1. SMPS P.C.B. Other potential causes include a solder crack or dry joint at P5701, an open fuse (F1), a solder crack at PC5702/PC5799, a dry joint, short circuit, or open circuit. Additionally, IC5701, T5751, the Switching Mode Power Supply Control IC (IC5799), or D5798 could be faulty.
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Alicia MarshAug 9, 2025
What to do if my Panasonic Stereo System turns on then shows F61?
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  Crystal WilliamsAug 9, 2025
  If your Panasonic Stereo System turns on but then displays 'F61', it could be due to a faulty speaker unit, a loose connection, or a short. In this case you should refer to Section 9.1.2 Fig. 2. Main P.C.B. Another possible cause is a defective D-AMP IC (IC5800). Also, check the DC Voltage at Pin 1 if the DC Voltage is okay but there's no sound, or check the PWM waveform at Pin 10 and Pin 14 if 2a and 2b are okay but there's still no sound. If there's no PWM, four resistors (R5802, R5803, R5804, R5805) might be defective.
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Sandra ManningAug 16, 2025
Why does my Panasonic SA-AKX34LM-K work for a while then show F76?
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  Nicole WarrenAug 16, 2025
  If your Panasonic Stereo System turns on and works normally for a while before displaying 'F76', the issue might be due to improper contact between D5801 and the heatsink, which you can check referring to Section 9.1.1 Fig. 1. SMPS P.C.B. Alternatively, it could be due to improper contact between D5802 and the heatsink, or the set triggering temperature protection.
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Melissa BairdAug 23, 2025
What to do if my Panasonic SA-AKX34LM-K turns on then shows F76?
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  Robert LeeAug 23, 2025
  If your Panasonic Stereo System turns on but then displays 'F76', it could be due to a short circuit between Pin 11 and Pin 12, you can refer to Section 9.1.1 Fig. 1. SMPS P.C.B. Other potential causes include a short circuit between Pin 13 and Pin 14 or between Pin 16 and Pin 17. Additionally, IC2010 might be faulty (no +9V output), you can refer to Section 9.1.2 Fig. 2. and Fig.3. Main P.C.B., L2000 might be open, Q2022 might be faulty (no +5V output), IC2014 might be faulty (no +3.3V output), IC2011 might be faulty (no +5V output), L2001 might be open, PC5720 might have a solder crack, you can refer to Section 9.1.1 Fig. 1. SMPS P.C.B., or there might be a dry joint, short circuit, or open circuit.

Summary

Safety Precautions

General Guidelines

General guidelines for servicing, lead dress, protective devices, and leakage current checks.

Before Repair and Adjustment

Procedure to discharge AC capacitors and cautions for repairs to prevent damage.

Warning

Prevention of Electrostatic Discharge (ESD) to Electrostatic Sensitive (ES) Devices

Techniques to prevent damage to sensitive devices from static discharge.

Precaution of Laser Diode

Precautions for handling the laser diode to avoid exposure and damage.

Service caution based on Legal restrictions

Description of Lead Free Solder (PbF) and service cautions for its use.

Handling Precautions for Traverse Unit

Precautions for handling the traverse unit, especially the laser diode, to prevent ESD damage.

Service Navigation

Service Information

Overview of the service manual's content and ordering parts.

Specifications

General;Introduction

Media Information

Details on media compatibility, limitations, and supported formats for CD and USB.

Location of Controls and Components

Remote Control Key Button Operation

Explanation of the functions of each button on the remote control.

Main Unit Key Button Operation

Explanation of the functions of each button on the main unit.

Installation Instructions

Speaker and A;C Connection

Instructions for connecting speakers, AM/FM antennas, and the AC power cord.

Service Mode

Cold-Start

Procedure to initialize the unit to shipping mode or perform a cold-start.

Doctor Mode Table

Table detailing various service modes, their descriptions, FL display, and key operations.

Self-Diagnostic Mode

Instructions on how to enter the self-diagnostic mode for checking unit errors.

Self-Diagnostic Error Code Table

Table listing error codes, diagnostic contents, automatic FL display, and remarks.

CD Mechanism Error Code Table (CD Mechanism Unit (BRS1 C))

Table listing error codes specific to the CD mechanism unit.

Sales Demonstration Lock Function

Procedures for entering and cancelling the sales demonstration lock function.

Troubleshooting Guide

Part Location

Illustrations showing the location of parts on SMPS, Main (Front/Back), and other PCBs.

Troubleshooting Guide for F61 and;or F76

Troubleshooting procedures for F61 and F76 errors, focusing on SMPS & Main P.C.B.

D-Amp IC Operation & Control

Service Fixture & Tools

Disassembly and Assembly Instructions

Disassembly Flow Chart

Flow chart illustrating the sequence for disassembling unit components and PCBs.

Main Components and P.C.B. Locations

Diagram showing the locations of main components and PCBs within the unit.

Disassembly of Top Cabinet

Step-by-step instructions for disassembling the top cabinet of the unit.

Disassembly of Front Panel Unit

Step-by-step instructions for disassembling the front panel unit.

Disassembly of Panel P.C.B.

Step-by-step instructions for disassembling the panel P.C.B.

Disassembly of Memory LED P.C.B.

Instructions for disassembling the Memory LED P.C.B.

Disassembly of Remote Sensor P.C.B.

Instructions for disassembling the Remote Sensor P.C.B.

Disassembly of USB P.C.B.

Instructions for disassembling the USB P.C.B.

Disassembly of Music Port P.C.B.

Instructions for disassembling the Music Port P.C.B.

Disassembly of CD Lid

Instructions for disassembling the CD lid.

Disassembly of Main P.C.B.

Instructions for disassembling the Main P.C.B.

Replacement of Voltage Regulator IC (IC2010)

Procedure for replacing the Voltage Regulator IC (IC2010).

Replacement of Voltage Regulator IC (IC2011)

Procedure for replacing the Voltage Regulator IC (IC2011).

Replacement of Audio Digital Amp IC (IC5800)

Procedure for replacing the Audio Digital Amp IC (IC5800).

Disassembly of SMPS P.C.B.

Instructions for disassembling the SMPS P.C.B.

Replacement of Switching Regulator IC (IC5701)

Procedure for replacing the Switching Regulator IC (IC5701).

Replacement of Rectifier Diode (D5702)

Procedure for replacing the Rectifier Diode (D5702).

Replacement of Rectifier Diode (D5801)

Procedure for replacing the Rectifier Diode (D5801).

Replacement of Rectifier Diode (D5802)

Procedure for replacing the Rectifier Diode (D5802).

Replacement of Regulator Diode (D5803)

Procedure for replacing the Regulator Diode (D5803).

Disassembly of CD Mechanism Unit (BRS11 C)

Instructions for disassembling the CD Mechanism Unit (BRS11C).

Disassembly of CD Interface P.C.B.

Instructions for disassembling the CD Interface P.C.B.

Disassembly of CD Servo P.C.B.

Instructions for disassembling the CD Servo P.C.B.

Disassembly of Rear Panel

Instructions for disassembling the rear panel.

Service Position

Checking and Repairing of Main P.C.B.

Instructions for checking and repairing the Main P.C.B. in its original position.

Checking and Repairing of Panel P.C.B.

Instructions for checking and repairing the Panel P.C.B.

Checking and Repairing of SMPS P.C.B.

Instructions for checking and repairing the SMPS P.C.B.

Checking and Repairing of CD Servo P.C.B. (Side A)

Instructions for checking and repairing the CD Servo P.C.B. (Side A).

Simplified Block Diagram

Power Block Diagram

Simplified block diagram illustrating the power supply circuit.

Block Diagram

Servo & System Control

Block diagram for the servo and system control circuits.

IC Terminal Chart

Terminal chart for ICs used in the servo processor and SDRAM.

Audio

Block diagram illustrating the audio circuit, including inputs and outputs.

Power Supply

Block diagram of the power supply circuit.

Wiring Connection Diagram

Schematic Diagram

Schematic Diagram Notes

Notes and symbols used in the schematic diagrams, including safety notices.

CD Servo Circuit

Schematic diagram of the CD Servo circuit.

Main(MICON) Circuit

Schematic diagram of the Main (MICON) circuit.

Main(D-Amp) Circuit

Schematic diagram of the Main (D-Amp) circuit.

Panel Circuit

Schematic diagram of the Panel circuit.

Remote Sensor, USB, Music Port and Memory LED Circuit

Schematics for Remote Sensor, USB, Music Port, and Memory LED circuits.

CD Interface

Schematic diagram of the CD Interface circuit.

SMPS Circuit

Schematic diagram of the SMPS circuit.

Printed Circuit Board

CD Servo P.C.B.

Illustrations of the CD Servo P.C.B. (Side A and Side B).

Main P.C.B. (Side A)

Illustration of the Main P.C.B. (Side A) showing component layout.

Main P.C.B. (Side B)

Illustration of the Main P.C.B. (Side B) showing component layout.

Panel, Remote Sensor, USB and Music Port P.C.B.

Illustrations of Panel, Remote Sensor, USB, and Music Port P.C.B. layouts.

Memory LED and CD Interface P.C.B

Illustrations of Memory LED and CD Interface P.C.B. layouts.

SMPS P.C.B.

Illustration of the SMPS P.C.B. showing component layout.

Appendix Information of Schematic Diagram

Voltage & Waveform Chart

Chart detailing voltage measurements for CD Servo and Main PCBs in various modes.

CD Servo P.C.B. (2;3)

Voltage table for CD Servo P.C.B. (continued).

Main P.C.B. (1;3)

Voltage table for Main P.C.B. (part 1).

Main P.C.B. (2;3)

Voltage table for Main P.C.B. (part 2).

Panel P.C.B.

Voltage table for Panel P.C.B. in different modes.

SMPS P.C.B.

Voltage table for SMPS P.C.B. in different modes.

Waveform Table

Table showing waveforms for various ICs, including measurement details.

Illustration of ICs, Transistor and Diode

Terminal Function of ICs

IC2003 (*MN101 EF16 KXW): IC MICRO-PROCESSOR

Detailed terminal functions for the IC MICRO-PROCESSOR (IC2003).

Exploded View and Replacement Parts List

Exploded View and Mechanical replacement Part List

Exploded view showing cabinet parts location and mechanical replacement parts.

Cabinet Parts Location

Diagram showing the location of cabinet parts for exploded view.

Packaging

Diagram illustrating the packaging of the product and its accessories.

Mechanical Replacement Part List

List of mechanical replacement parts with part numbers, descriptions, and quantities.

Electrical Replacement Part List

Panasonic SA-AKX34LM-K Specifications

General

Model	SA-AKX34LM-K
Category	Stereo System
Speaker Type	2-way
Bluetooth	Yes
USB Playback	Yes
FM Radio	Yes
Type	Mini System
Number of Discs	1
USB Port	Yes
CD Player	Yes
FM Tuner	Yes
Remote Control	Yes
Playable Formats	CD, MP3