Panasonic SB-VK81 User Manual

n AMPLIFIER SECTION
RMS Output Power : Dolby Digital Mode
Front Ch
80 W per channel (6 Ω), 1 kHz, 10% THD
Surround Ch
35 W per channel (6 Ω), 1 kHz, 10% THD
Center Ch
85 W per channel (6 Ω), 1 kHz, 10% THD
Subwoofer
85 W per channel (6 Ω), 100 Hz, 10% THD
Total RMS Dolby Digital mode power
400 W
PMPO output power 4800 W
n FM/AM TUNER, TERMINALS SECTION
Preset station FM 15 stations
AM/MW 15 stations
Frequency Modulation (FM)
Frequency range 87.50 - 108.00 MHz (50 kHz step)
Sensitivity 2.5µV (IHF)
S/N 26dB 2.2µV
A
ntenna terminals 75Ω (unbalanced)
A
mplitude Modulation (AM/MW)
Frequency range 522 - 1629 kHz (9 kHz step)
520 - 1630 kHz (10 kHz step)
A
M sensitivity S/N 20 dB at 1000 kHz
560µV/m
A
udio performance (Amplifier)
© 2004 Panasonic AVC Networks Singapore Pte.
Ltd. (RCB Registration Number: 197701580H) All
rights reserved. Unauthorized copying and
distribution is a violation of law.
SA-VK81DGCS
SA-VK81DGCP
Colour
(S)... Silver Type
Input sensitivity/Input impedance
A
ux 250 mV, 20 kΩ
Phone jack
Terminal Stereo, 3.5 mm jack
Mic jack
Sensitivity 0.7 mV, 600 Ω
Terminal Mono, 6.3 mm jack (2 system)
n 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 Motor
Recording System AC Bias 100 kHz
Erase System AC Erase 100 kHz
Tape Speed 4.8 cm/s
Overall Frequency Response (+3, -6 dB) at DECK OUT
Normal (TYPE I) 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
n DISC SECTION
Disc played [8 cm or 12 cm]
(1) DVD-RAM (DVD-VR compatible, JPEG formatted disc)
(2) DVD-Audio
DVD Stereo System
Specifications
ORDER NO. MD0406163C3

Panasonic SB-VK81 Specifications

General

Brand	Panasonic
Model	SB-VK81
Category	Stereo System
Language	English

Summary

Before Use and Safety Precautions

Before Use

Before Repair and Adjustment

Procedures to follow before performing repairs or adjustments on the unit.

Protection Circuitry

General Safety Guidelines

General safety precautions to observe during servicing.

Leakage Current Checks

Procedures for performing cold and hot checks for leakage current.

Prevention of Electrostatic Discharge (ESD)

Techniques to prevent damage to sensitive electronic components from ESD.

Handling Specific Components and Materials

Handling the Lead-free Solder

Cautions for Handling Optical Pickup

Precautions for handling the optical pickup unit to prevent damage.

Precaution of Laser Diode

Warnings and precautions related to the laser diode used in the product.

Repair Procedures and Troubleshooting

Procedure for repairing the set

Step-by-step guide for diagnosing and repairing the audio system.

Optical Pickup Self-Diagnosis and Replacement

Procedures for self-diagnosis and replacement of the optical pickup unit.

Self-Diagnosis Function

Cautions To Be Taken During Servicing

Important cautions and procedures for servicing the DVD player after repair.

Disassembly and Assembly Procedures

Disassembly flow chart

Disassembly of Top Cabinet

Disassembly for Panel P.C.B., MIC P.C.B. & Tact Switch P.C.B.

Disassembly of Main P.C.B. and related boards

Replacement for traverse deck

Disassembly of Deck Mechanism Unit

Service Position and Measurements

Service Position

Checking Main P.C.B. and related boards

Measurements and Adjustments

Detailed steps for measurements and adjustments for cassette deck and tuner sections.

Schematic Diagrams and PCB Layouts

Schematic Diagram

Printed Circuit Board Layouts

Component Identification and Lists

Parts Location and Replacement Parts List

Comprehensive list of parts with their locations and part numbers.