Panasonic SA-VK725DEE

AMPLIFIER SECTION
RMS Output Power: Dolby Digital Mode
Main
70 W per channel (6 Ω), 1 kHz, 10% THD
Surround Ch
55 W per channel (6 Ω), 1 kHz, 10% THD
Center Ch
70 W per channel (6 Ω), 1 kHz, 10% THD
Total RMS Dolby Digital mode power
320 W
FM/AM TUNER, TERMINALS SECTION
Preset station FM 15 stations
AM 15 stations
Frequency Modulation (FM)
Frequency range 87.50 - 108.00 MHz (50 kHz step)
Sensitivity 2.5 µV (IHF)
S/N 26 dB 2.2 µV
A
ntenna terminals 75 Ω (unbalanced)
A
mplitude Modulation (AM)
Frequency range 522 - 1629 kHz (9 kHz step)
A
M Sensitivity S/N 20 dB at 999 kHz
560 µV/m
A
udio performance (Amplifier)
Input sensitivity/Input impedance
A
ux 250 mV, 20 kΩ
© 2005 Matsushita Electric Industrial Co. Ltd.. All
rights reserved. Unauthorized copying and
distribution is a violation of law.
SA-VK725DEE
Colour
(S)... Silver Type
Phone jack
Terminal Stereo, 3.5 mm jack
Mic jack
Sensitivity 0.7 mV, 600 Ω
Terminal Mono, 6.3 mm jack (2 system)
CASSETTE DECK SECTION
Type Auto-Reverse
Track system 4-Track, 2 Channel
Head Record/Playback Solid permalloy head
Erasure Double gap ferrite head
Motor DC servo moto
r
Recording System AC Bias 100 kHz
Erasing System AC Erase 100 kHz
Tape Speed 4.8 cm/s
Overall frequency response (+3, -6 dB) at DECK OUT
Normal 35 Hz - 14 kHz
S/N Ratio 50 dB (A weighted)
Wow and Flutter 0.18 % (WRMS)
Fast Forward and Rewind Time Approx. 120 seconds with
C-60 cassette tape
DISC SECTION
Disc played [8 cm or 12 cm]
(1) DVD (DVD-Video, DVD-Audio, DivX
*6
,
*7
)
(2) DVD-RAM (DVD-VR, JPEG
*4
,
*7
, MPEG4
*5
,
*7
,DivX
*6
,
*7
)
DVD Stereo System
Specifications
ORDER NO. MD0507277C3

Panasonic SA-VK725DEE Specifications

General

Brand	Panasonic
Model	SA-VK725DEE
Category	CD Player
Language	English

Summary

Before Repair and Adjustment

Safety Precautions

General Servicing Guidelines and Leakage Current Checks

Covers general safety practices and leakage current testing procedures.

ESD Prevention and Lead-free Solder Handling

ESD Prevention Techniques

Methods to prevent static discharge damage to components.

Laser Diode Precautions

Laser Safety Guidelines

Details safety measures for laser diode operation.

Optical Pickup Handling Cautions

Handling and Grounding Procedures

Covers safe handling and ESD protection for optical pickups.

Optical Pickup Diagnosis and Replacement

Optical Pickup Breakdown Diagnosis Procedure

Details the self-diagnosis process for the optical pickup.

Self-Diagnosis Function

Entering Self-Diagnostic Mode and Error Codes

Covers accessing the mode and understanding automatic error displays.

Service Mode Tables and Error Code Descriptions

Service Mode Tables

Lists button combinations for accessing service modes.

DVDCD Self-Diagnosis Error Code Descriptions

Provides detailed explanations of error codes.

Cautions and Recovery Procedures

Post-Repair Steps and Firmware Upgrade

Tasks after repair and firmware update process.

Using Recovery Disc and Module Replacement

Recovery Disc Usage and DVD Module Replacement

Steps for using the recovery disc and handling DVD module replacement.

Disassembly and Assembly of Main Component

Overview of Disassembly Steps

Lists all components for disassembly.

Disassembly Flow Chart

Internal Part Disassembly Sequence

Flowchart for disassembling internal parts.

Optical Pickup Unit Replacement

Optical Pickup Unit (DVD Mechanism) Replacement Steps

Detailed instructions for replacing the optical pickup.

Rectification for Tape Jam Problem

Tape Jam Troubleshooting Steps

Procedures for resolving tape jamming issues.

Checking Major P.C.Bs

Checking of Main P.C.B.

Procedure for inspecting the main P.C.B.

Measurements and Adjustments - Cassette Deck

Cassette Deck Section Measurement Conditions

Measurement settings and instruments for cassette deck.

Tuner Section Adjustments

AM-IF Alignment and AM RF Adjustment

Procedures for tuning adjustments.

Schematic Diagrams

General Notes and Safety Precautions

Important notes before viewing schematics.

Optical Pickup Unit Circuit Schematic

Optical Pickup Unit Circuit Diagram - 1

First part of the optical pickup circuit.

DVD Module Circuit Schematics

DVD Module Circuit Schematic Diagram - 2

Second part of the DVD module circuit.

Main Circuit Schematics

Main (Tuner) Circuit Schematic

Circuit diagram for the tuner section.

Main Circuit Diagram - 10

Circuit diagram for the main unit.

Main Circuit Diagram - 11

Continuation of main circuit diagrams.

Main Circuit Diagram - 12

Further main circuit diagrams.

Main Circuit Diagram - 13

More main circuit diagrams.

Main Circuit Diagram - 14

Main Circuit Diagram - 15

Main Circuit Diagram - 16

Main Circuit Diagram - 17

Main Circuit Diagram - 18

Printed Circuit Board Layouts

DVD Module P.C.B. (Side: A & B) Layout

Main P.C.B. Layout

Main P.C.B. Layout

Wiring Connection Diagram

Overall Wiring Diagram

Terminal Function of IC

IC2818 (System Microprocessor) Terminal Functions

Parts Location and Replacement Parts List

Notes on Parts List and Safety Precautions

Important safety and usage notes for the parts list.

Deck Mechanism Parts Location

Deck Mechanism Exploded View

Deck Mechanism Parts List

Cassette Deck Mechanism Component List

DVD Loading Mechanism Parts Location

DVD Loading Mechanism Exploded View

DVD Loading Mechanism Parts List

Traverse Deck Component List

Electrical Parts List

Integrated Circuits and Transistors List

Lists integrated circuits and transistors.