ORDER NO. MD0601012C2CD Stereo SystemSA-AK640E / SA-AK640EB / SA-AK640EGColour(S)... Silver TypeNotes: This model’s CD mechanism changer unit is CRS1. Please refer tothe original Service Manual (Order No. MD0509368C0) for this mechanism.SPECIFICATIONSSpecifications1

Panasonic SA-AK640E Service Manual

specifications

Safety Precautions

Caution for AC Mains Lead

Protection Circuitry

Handling Precautions For Traverse Deck

Precaution of Laser Diode

Handling the Lead-free Solder

New Features

Music Port

Accessories

Operating Instructions Procedures

Self diagnosis and special mode setting

Error code Table

Assembling and Disassembling

Disassembly flow chart

Main Parts Location

Disassembly of Top Cabinet

Disassembly of Main P.C.B

Disassembly of Power P.C.B

Disassembly of Front Panel Unit

Disassembly for Panel P.C.B

Disassembly of Deck mechanism unit

Disassembly of optical pickup unit (CD mechanism)

Disassembly of Deck Mechanism

Replacement for cassette lid

Rectification for tape jam problem

Service Fixture and Tools

Checking and Repairing of Transformer P.C.B

Checking and Repairing of Power P.C.B

Adjustment Procedures

Tuner Section

adjustment point

Voltage and Waveform Chart

power p.c.b. & transformer p.c.b

Waveform Chart

Wiring Connection Diagram

Block Diagram

Schematic Diagram

A) CD Servo Circuit

B) Main (Tuner) Circuit

B) Main Circuit

C) Panel Circuit

D) Transformer Circuit

H) Power Circuit

Printed Circuit Board

A) CD Servo P.C.B

B) Main P.C.B

C) Panel P.C.B

D) Transformer P.C.B

E) Power P.C.B

Illustration of ICs, Transistors and Diodes

Terminal Function of IC's

IC7002 (BA5948FPE2) IC 4CH Drive

Exploded Views

Cabinet Parts Location

Deck Mechanism Parts Location (RAA4502-S)

Packaging

Replacement Parts List

SA-AK640E

SA-AK640EB

SA-AK640EG

Panasonic SA-AK640E Service Manual

Product

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