Panasonic sa akx56 gn service en

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PSG13040280E

Service Manual

SB-AKX76

SB-AKX76

Remote
Control

CD Stereo System
Model No. SA-AKX56GN

Product Color: (K)...Black Type

Please refer to the original service manual for:
0 CD Mechanism Unit, Order No. PSG1102001CE

0 Speaker system SB-AKX56PN-K, Order No. PSG1304049AE

A WARNING

This service information is designed for experienced repair technicians only and is not designed for use by the general public,

It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced professional technicians Any attempt to service
or repair the product or products dealt with in this service information by anyone else could result in serious injury or death.

IMPORTANT SAFETY NOTICE

There are special components used in this equipment which are important for safety. These parts are marked by A in the Schematic
Diagrams, Circuit Board Diagrams, Exploded Views and Replacement Parts List. It is essential that these critical parts should be replaced
with manufacturers specified parts to prevent shock, fire or other hazards Do not modify the original design without permission of

manufacturer.

TABLE OF CONTENTS

1 Safety Precautions --------
1.1. General Guidelines-
1.2. Before Repair and Adjustment
1.3. Protection Circuitry ---------------
1.4. Caution For Fuse Replacement--
1.5. Safety Parts Information -----------

2 Warning -------------------------------------------------------------- 6
2.1. Prevention of Electrostatic Discharge (ESD)

to Electrostatically Sensitive (ES) Devices--
2.2. Precaution of Laser Diode --------------------
2.3. Service caution based on Legal restrictions
2.4. Handling Precautions for Traverse Unit ------
2.5. Grounding for electrostatic breakdown

prevention

3 Service Navigation
3.1. Service Information

4 Specifications -----------------

5 General/Introduction ------------------------------------------- 14

Panasonic

5.1. Media Information ------------------------
6 Location of Controls and Components--
6.1. Remote Control Key Button Operation
6.2. Main Unit Key Button Operation ---------
7 Installation Instructions -----------
7.1. Speaker and NC Connection -
8 Service Mode--
8.1. Cold-Start -
8.2. Doctor Mode Table -------------------------------
8.3. Reliability Test Mode (CD Mechanism Unit)-
8.4. Self-Diagnostic Mode ----------------
8.5. Self-Diagnostic Error Code Table -
8.6. Sales Demonstration Lock Function
9 Troubleshooting Guide -----------------------
1D Disassembly and Assembly Instructions--
10.1. Screw Types -----------------
10.2. Disassembly Flow Chart -
10.3. Main Components and PCB. Locations ---------- 28

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29
so

10.4. Disassembly of Top Cabinet----
10.5. Disassembly of Front Panel Uni
10.6. Disassembly of Panel P.C.B., Memory LED
P.C.B. and Music Port P.C.B. ------------------------- 31
10.7. Disassembly of Remote Sensor P.C.B
10.8. Disassembly of USB P.C.B. -------------
10.9. Disassembly of CD Lid ------
10.10. Disassembly of Rear Panel
10.11. Disassembly of Main P.C.B. --
10.12. Disassembly of SMPS P.C.B.
10.13. Disassembly of CD Mechanism Unit --
10.14. Disassembly of CD Interface P.C.B.
10.15. Disassembly of Fan Unit --------------
11 Service Position ---------------------
11.1. Checking of Panel P.C.B.
11.2. Checking of Main P.C.B. (Side A)---
11.3. Checking of Main P.C.B. (Side B)---
11.4. Checking of SMPS PCB
12 Block Diagram -----------------
12.1. Servo & System Control-
12.2. Audio -----------
12.3. Power Supply
13 Wiring Connection Diagram --
14 Schematic Diagram --------------
14.1. Schematic Diagram Notes ---------------
14.2. MAIN (CD Servo/Micon/Damp) Circuit --
14.3. Panel Circuit ----------------------------------------------- 66
14.4. USB, Music Port. Memory LED & Remote
Sensor Circuit
14.5. SMPS Circuit-
14.6. CD Interface Circui
15 Printed Circuit Board
15.1. Main P.C.B. ------
15.2. Panel. USB. Music Port & Memory LED
P.C.B. -------------------------------------------------------- 74
15.3. SMPS P.C.B. --------------------------------
15.4. Remote Sensor & CD Interface P.C.B.
16 Appendix information of Schematic Diagram
16.1. Voltage & Waveform Chart --------------
17 Exploded View and Replacement Parts List --
17.1. Exploded View and Mechanical replacement
Part List ----------------------------------------------------- 85
17.2. Electrical Replacement Part List --------------------- 91