Panasonic SB-WA885EE User Manual

n Active subwoofer
Type 1 way, 2 speaker system, Bass reflex
Speaker unit(s)
1. Woofer 13 cm Cone type
2. Woofer 13 cm Cone type
Output sound pressure 80 dB/W (1.0 m)
Frequency range 40 Hz-220 Hz (-16 dB)
45 Hz-180 Hz (-10 dB)
Dimensions (W x H x D) 201.5 x 368.2 x 491.5 mm
Mass 11.3 kg
n General
Power consumption 340 W
Power supply AC 230 V, 50Hz
1 Safety Precautions
3
1.1. GENERAL GUIDELINES
3
2 Before Repair and Adjustment
4
3 Protection Circuitry
4
4 Handling the Lead-free Solder
4
4.1. About lead free solder (PbF)
4
© 2005 Matsushita Electric Industrial Co. Ltd.. All
rights reserved. Unauthorized copying and
distribution is a violation of law.
SB-WA885EE
Colour
(S)... Silver Type
Note :
Specifications are subject to change without notice.
Mass and dimensions are approximate.
n System : SC-HT885(EE)
Music Center: SA-HT885(EE)
Satellite Speakers: SB-HT880(GC)
Active Subwoofer: SB-WA885(EE)
5 Connection of the Speaker Cables 5
6 Disassembly Procedure
6
6.1. Disassembly flow chart
6
6.2. Disassembly of the Speaker Unit and Checking of the
P.C.B.
8
Active Subwoofer System
Specification
CONTENTS
Page Page
ORDER NO. MD0506273C3

Panasonic SB-WA885EE Specifications

General

Brand	Panasonic
Model	SB-WA885EE
Category	Subwoofer
Language	English

Summary

Active Subwoofer Specifications

Safety Precautions for Servicing

Leakage Current Cold Check Procedure

Procedure for measuring resistance between AC plug and exposed parts to detect short circuits.

Leakage Current Hot Check Procedure

Procedure for measuring voltage across a resistor connected to exposed parts to check for shock hazards.

Pre-Repair and Adjustment Procedures

Protection Circuitry Operation and Reset

Disassembly Procedure

PCB Disassembly and Checking

Steps for disassembling and checking AC Inlet, Power, and Transformer PCBs.

Power IC and Transistor Replacement

Voltage Measurement and Waveform Chart

Waveform Examples

System Block Diagram

Schematic Diagram

Power Circuit Schematic

Detailed schematic of the power circuit, including IC501 and various transistors.

Transformer and AC Inlet Circuit Schematics

Printed Circuit Board Layouts

Power PCB Layout

AC Inlet and Transformer PCB Layouts

Wiring Connection Diagram

Illustration of Electronic Components

Parts Location and Replacement List

Parts Location and Replacement List

Notes on component identification, safety, and units used in the parts list.

Cabinet Parts Location Diagram

Cabinet Parts List

List of cabinet parts with part numbers, descriptions, and remarks.

Electrical Parts List

Comprehensive list of electrical components, including part numbers and specifications.