Panasonic SB-WA935EE User Manual

n Active subwoofer
Type 1 way, 2 speaker system, Bass reflex
Speaker unit(s)
1. Woofer 15 cm Cone type
2. Woofer 15 cm Cone type
Output sound pressure 84 dB/W (1.0 m)
Frequency range 34 Hz-220 Hz (-16 dB)
38 Hz-190 Hz (-10 dB)
Dimensions (W x H x D) 202 x 410 x 500 mm
Mass 13.7 kg
n General
Power consumption 390 W
Power supply AC 230V, 50Hz
1 Safety Precautions
3
1.1. GENERAL GUIDELINES
3
2 Handling the Lead-free Solder
4
2.1. About lead free solder (PbF)
4
3 Before Repair and Adjustment
4
© 2005 Matsushita Electric Industrial Co. Ltd.. All
rights reserved. Unauthorized copying and
distribution is a violation of law.
SB-WA935EE
Colour
(S)... Silver Type
Note :
Specifications are subject to change without notice.
Mass and dimensions are approximate.
n System : SC-HT935(EE)
Music Center: SA-HT935(EE)
Satellite Speakers: SB-HT880(EB)
Active Subwoofer: SB-WA935(EE)
4 Protection Circuitry 4
5 Connection of the Speaker Cables
5
6 Disassembly Procedure
6
6.1. Disassembly flow chart
6
Active Subwoofer System
Specification
CONTENTS
Page Page
ORDER NO. MD0504115C3

Panasonic SB-WA935EE Specifications

General

Brand	Panasonic
Model	SB-WA935EE
Category	Subwoofer
Language	English

Summary

Safety Precautions and General Guidelines

Handling Solder, Protection, and Connection

Covers safety precautions, lead-free solder handling, protection circuitry, and speaker cable connection.

Disassembly Procedures

Disassembly Flow Chart

Outlines the sequential steps for disassembling the unit's casing and internal parts.

Detailed Disassembly and Troubleshooting

Speaker Unit Disassembly and Voltage Measurement

Details speaker unit disassembly and voltage measurement points for troubleshooting.

Waveform Chart and System Diagrams

Provides waveform data, block diagrams, and schematic notes for system analysis.

Advanced Safety Checks

Leakage Current Cold & Hot Checks

Details methods for performing cold and hot leakage current checks to ensure safety.

Measurement Data

Power, Amplifier, and AC Inlet Voltages

Provides standard DC voltage values for various points on the Power, Amplifier, and AC Inlet PCBs.

Waveform Analysis

Diagnostic Signal Waveforms

Illustrates reference AC waveforms at specific connector pins for diagnostic purposes.

System Block Diagram

Functional Block Overview

A schematic overview of the system's main functional blocks and their interconnections.

Schematic Diagram Notes

Safety and Component Handling Advice

Important notes regarding schematic interpretation, safety, and handling sensitive components.

Schematic Diagrams - Power Circuits

Power and Transformer Circuits

Detailed schematics of the power supply, transformer, and AC inlet circuits.

Schematic Diagrams - Amplifier Circuit

Amplifier Circuit Details

Detailed schematic of the audio amplification circuitry, showing components and signal paths.

Printed Circuit Board Layouts

Power PCB Layout

Visual layout of the Power Printed Circuit Board, showing component placement.

Wiring Connection Diagram

System Wiring Overview

Diagram illustrating how different units and components are interconnected via cables.

Component Illustrations

ICs, Transistors, and Diodes

Visual identification of common integrated circuits, transistors, and diodes used in the unit.

Cabinet Parts Location

Assembly Parts Diagram

Exploded view showing the location of various cabinet and chassis components.

Cabinet Parts List

Component Part Numbers

A list of part numbers for cabinet and chassis components.

Electrical Parts List

Component Part Numbers

A comprehensive list of electrical components with their part numbers.

Packing Materials and Packaging

Accessories and Shipping Details

Details on packing materials and final packaging for the product.