Panasonic SA-AK78 User Manual

■ Amplifier Section
Front speaker power output
Power output
PMPO 3400 W
RMS power output
THD 10%, both channels driven
Total 200 W per channel (6Ω)
LOW 100 Hz 120 W per channel (6Ω)
MID 1 kHz 40 W per channel (6Ω)
HIGH 10 kHz 40 W per channel (6Ω)
Power output in
Dolby Pro Logic mode
PMPO Total 4000 W
RMS power output
THD 10%
Total 500 W
Front LOW 100 Hz 120 W per channel (6Ω)
Front HIGH 1 kHz 40 W per channel (6Ω)
Center 1 kHz 90 W per channel (8Ω)
Surround 1 kHz 45 W per channel (8Ω)
Input sensitivity
AUX 1, AUX 2 250 mV
MIC 0.7 mV
© 2000 Matsushita Electronics (S) Pte. Ltd. All rights
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violation of law.
SA-AK78
Colour
(S)... Silver Type
Area
(GC)... Asia, Latin America, Africa and Middle Near
East
TAPE SECTION
AR2 MECHANISM SERIES
CD SECTION
RAE0152Z-3 TRAVERSE DECK SERIES
Input impedance
AUX 1, AUX 2 10 kΩ
MIC 600 Ω
■ FM Tuner Section
Frequency range 87.50-108.00 MHz (50 kHz step)
Sensitivity 1.8µV (IHF)
S/N 26 dB 1.5µV
Antenna terminal(s) 75 Ω unbalanced
■ AM Tuner Section
Frequency range 522-1629 kHz (9kHz step)
520-1630 kHz (10kHz step)
Sensitivity
S/N 20 dB 500 µV/m
■ Cassette Deck Section
Track system 4 track, 2 channel
Heads
Record/playback Solid permalloy head
Erasure Double gap ferrite head
Motor DC servo motor
Recording system AC bias 100kHz
Erasing system AC erase 100kHz
Tape speed 4.8 cm/s
CD Stereo System
Specification
ORDER NO. MD0005090C3

Panasonic SA-AK78 Specifications

General

CD Player	Yes
Radio Tuner	FM/AM
Bluetooth	No
USB Port	No
MP3 Playback	Yes
WMA Playback	Yes
AAC Playback	No
Remote Control	Yes
Speaker Type	2-way speakers
Speaker Configuration	2 speakers

Summary

System Specifications

Before Use and Safety

Before Repair and Adjustment

Safety precautions and procedures for discharging capacitors before servicing.

Handling Precautions

Handling Precautions For Traverse Deck

Guidelines for preventing static damage to the traverse deck optical pickup.

Precaution of Laser Diode

Safety warnings and precautions related to the laser diode in the optical pickup.

Self-Diagnostic Function

Self-diagnostic display

Explanation of the self-diagnostic feature and error code display.

How to Enter Self-Diagnostic Function

Step-by-step guide to access the self-diagnostic mode.

Cassette Mechanism Test

Procedure for testing the cassette mechanism and relevant error codes.

CD Mechanism Test

Procedure for testing the CD mechanism and relevant error codes.

Clear All Error Codes

Instructions on how to clear all error codes from the diagnostic memory.

Exit Self-Diagnostic Function

Steps to exit the self-diagnostic mode and return to normal operation.

Power Amplifier Failure (F61)

Indication of power amplifier failure (F61) and its meaning.

Error Code Descriptions

Cassette Mechanism Error Detection

List of error codes and their corresponding problem conditions for the cassette mechanism.

CD/Changer Block Error Detection

List of error codes and their corresponding problem conditions for the CD/Changer block.

Power Supply Related Error Detection

CD Test Mode Functions

Measurements and Adjustments

Cassette Deck Section Measurements

Measurement conditions and procedures for the cassette deck section.

Alignment Points

Key points for alignment procedures in the cassette deck section.

IC Terminal Functions

Block Diagrams

Schematic Diagrams

Printed Circuit Board Layouts

Wiring Connection Diagram

Troubleshooting Guide

Parts Location and Replacement Parts List