Panasonic SA-VK460GC User Manual

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Q AMPLIFIER SECTION
RMS Output Power Stereo mode:
Front Ch (both ch driven)
115 W per channel (3 Ω), 1 kHz, 10% THD
Total RMS Stereo mode power 230 W
PMPO output power 2500 W
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Q FM/AM TUNER, TERMINALS SECTION
Preset station FM 20 stations
AM 15 stations
Frequency Modulation (FM)
Frequency range 87.50 to 108.00 MHz (50 kHz
step)
Sensitivity 2.5 µV (IHF)
S/N 26dB 1.3 µV
Antenna terminals 75 Ω (unbalanced)
Amplitude Modulation (AM)
Frequency range 522 to 1629 kHz (9 kHz step)
520 to 1630 kHz (10 kHz step)
AM Sensitivity S/N 20dB at 999 kHz
505 µV/m
Digital audio output
Coaxial digital output Pin jack
Music Port Input Jack
Sensitivity 100 mV, 4.7 kΩ
© 2007 Matsushita Electric Industrial Co. Ltd.. All
rights reserved. Unauthorized copying and
distribution is a violation of law.
SA-VK460GC
SA-VK460GS
SA-VK460GCS
SA-VK460GCT
Colour
(S)... Silver Type
Terminal Stereo, 3.5 mm jack
Phone jack
Terminal Stereo, 3.5 mm jack
Mic jack
Sensitivity 0.7 mV, 600 Ω
Terminal Mono, 6.3 mm jack (1 system)
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Q CASSETTE DECK SECTION
Type 1way,Autoreverse
Track system 4 Track, 2 Channel
Heads
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 to 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
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Q VIDEO SECTION
DVD Stereo System
Notes: This model’s DVD/CD mechanism changer unit is CRS1D. Please refer to the original service
manual (Order No. MD0603065A3) for this mechanism.
Specifications
ORDER NO. MD0707001CE

Panasonic SA-VK460GC Specifications

General

CD Player	Yes
FM/AM Tuner	Yes
Bluetooth	No
USB Playback	Yes
Type	Mini Hi-Fi System
Number of Discs	1
Playable Media	CD, CD-R/RW, MP3
Tuner Bands	FM/AM
Power Output	330W RMS
RMS Output Power	330W
Speakers	2 speakers + subwoofer
Frequency Response	20Hz - 20kHz
Speaker Impedance	6Ω
Speaker Configuration	2.1 Channel

Summary

Safety Precautions

General Guidelines

General safety instructions for servicing, including lead dress and protective device installation.

Leakage Current Checks

Procedures for performing cold and hot leakage current tests to prevent shock hazards.

AC Power Cord Safety

Pre-Operation and Repair Precautions

Protection Circuitry Explanation

Explanation of protection circuitry operation and troubleshooting steps.

ESD Prevention

Safety Parts Information

Lists critical safety components identified with a triangle symbol.

Laser Diode Precautions

Lead-Free Solder Information

Lead-Free Solder Service Cautions

Important cautions for using lead-free solder during repair work.

Traverse Unit Handling Precautions

Optical Pickup Handling and Grounding

Instructions for handling optical pickup and grounding methods to prevent ESD.

DVD/CD Mechanism Changer Unit Overview

CRS1D Mechanism Details

Detailed overview of the CRS1D disc changer mechanism.

CRS1D Unit Specifics

Specific information and notes regarding the CRS1D DVD/CD mechanism changer unit.

Self-Diagnosis and Special Modes

Service Mode Summary Tables

Summaries of service modes for DVD functions and general inspection.

Service Mode Table 1 Details

Detailed service mode table for error code and jitter display.

Service Mode Table 2 Details

Detailed service mode table for laser current measurement and RAM data checks.

Service Mode Table 3 Details

Details service modes for firmware version, initialization, and region settings.

Service Mode Table 4 Details

Details service modes for DVD module firmware version and error checks.

Service Mode Table 5 Details

Details service modes for timer checks related to laser operation.

Special Mode Table 6 Details

Optical Pick-up Diagnosis Procedures

DVD Self-Diagnostic Error Codes

DVD Module Error Code Table

Table listing error codes for the DVD module self-diagnostic function.

Traverse Unit and Power Supply Error Codes

Error codes related to the traverse unit and power supply abnormalities.

ECC Error Code Table

Error codes indicating issues with ECC correction during disc reading.

Mechanism Changer Unit Error Codes

Error codes specific to the DVD/CD mechanism changer unit.

Deck Mechanism Error Codes

Error codes generated by the deck mechanism's internal operations.

Service Precautions and Procedures

Post-Repair Recovery and Firmware Update

Steps for recovery processing after repair and updating the firmware.

DVD Module P.C.B. Reset Procedure

Procedure to reset the DVD module PCB after component replacement.

Assembling and Disassembling Procedures

Disassembly Index and Cautions

Unit Disassembly Flow Chart

Main Parts Identification and Top Cabinet Removal

DVD/CD Changer Unit Disassembly

Rear Panel Disassembly

Main and SMPS P.C.B. Disassembly

D-AMP P.C.B. Disassembly

Front Panel and Mic P.C.B. Disassembly

Panel and Tact Switch P.C.B. Disassembly

Deck Mechanism Unit Disassembly

Deck P.C.B. and Pinch Roller/Head Block Replacement

Motor and Belt Replacement Procedures

Traverse Unit Disassembly Steps

Middle Chassis Disassembly Steps

DVD Module, Deck Mechanism PCBs, and Cassette Lid Replacement

Tape Jam Rectification Steps

Service Positions and Procedures

Main and SMPS P.C.B. Service

Panel P.C.B. Service Procedures

D-AMP, Deck, Mechanism PCB Service

Adjustment Procedures

Cassette Deck Adjustments

Tuner Alignment Procedures

Alignment Points for Cassette Deck

Voltage and Waveform Reference Charts

DVD Module P.C.B. Voltage Data

Reference voltage values for various points on the DVD module PCB.

Main P.C.B. Voltage Data

Reference voltage values for various points on the main circuit board.

Panel, DAMP, and SMPS P.C.B. Voltage Data

Reference voltage values for panel, DAMP, and SMPS PCBs.

Deck, Mechanism, Mic P.C.B. Voltage Data

Reference voltage values for deck, mechanism, and mic PCBs.

Waveform Chart Reference

Visual representations of waveforms at various test points for reference.

Wiring Connection Diagram

Block Diagrams

System Control Block Diagram

DVD Servo/Video Block Diagram

Audio Block Diagram

Digital Amp Block Diagram

Deck Block Diagram

SMPS Block Diagram

Schematic Diagrams

DVD Module Circuit Schematics

Main Circuit Schematic

Panel Circuit Schematic

Tact Switch, Mic, Deck Mechanism Schematics

Deck Circuit Schematic

D-AMP Circuit Schematic

SMPS Circuit Schematic (GC Only)

SMPS P.C.B. Schematic (GCS/GS/GCT Only)

Optical Pickup Unit Circuit Schematic

Troubleshooting Guide

Initialisation and Playability Issues Troubleshooting

Troubleshooting steps for problems related to unit initialisation and disc playability.

IC Terminal Functions

IC2801 System Microprocessor Terminal Functions

IC6601 FL Driver IC Terminal Functions

Replacement Parts List

Safety Notices for Parts Replacement

Component Parts List Details

Detailed list of all replaceable components with part numbers.