Panasonic SB-WA870EB - User Manual

n Active subwoofer
Type 1 way, 1 speaker system (Bass
reflex)
Speaker unit Impedance 4 Ω
Woofer 20 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) 248 x 417 x 476.6 mm
Mass 16.4 kg
n General
Power consumption 390V
Power supply
Continental Europe and Russia AC 230V, 50Hz
The United Kingdom, Australia and
N.Z.
AC 230V-240V, 50Hz
Power consumption in standby
mode
0.7 W
1 Safety Precautions
3
1.1. GENERAL GUIDELINES
3
© 2004 Panasonic AVC Networks Singapore Pte.
Ltd. All rights reserved. Unauthorized copying and
distribution is a violation of law.
SB-WA870EB
SB-WA870EG
Colour
(S)...Silver Type
Notes :
1. Specifications are subject to change without notice.
2. Mass and dimensions are approximate.
SB-HT870P-S consists of :
SB-PF921P-S x 2, SB-PS921P-S x 2 and SB-PC920P-S x 1
n System : SC-HT870 (E)
Music Center: SA-HT870 (E)
Satellite Speakers: SB-HT870 (P)
Active Subwoofer: SB-WA870 (EG)
n System : SC-HT870 (EB) Music Center: SA-HT870 (EB)
Satellite Speakers: SB-HT870 (P)
Active Subwoofer: SB-WA870 (EB)
n System : SC-HT870 (EG)
Music Center: SA-HT870 (EG)
Satellite Speakers: SB-HT870 (P)
Active Subwoofer: SB-WA870 (EG)
2 Handling the Lead-free Solder
4
2.1. About lead free solder (PbF)
4
Active Subwoofer System
Specification
CONTENTS
Page Page
ORDER NO. MD0403127C2
http://www.Datasheet4U.com

Summary

Safety Warning

Repair and Adjustment Procedures

Protection Circuitry

Speaker Cable Connection

Disassembly Procedures

Disassembly Flow Chart

Visual flowchart detailing the sequence for disassembling the unit for inspection.

Speaker Unit and PCB Disassembly

Instructions for disassembling the speaker unit and checking its printed circuit board.

Main Component Replacement

Procedures for replacing key components like power ICs and transistors.

Schematic Diagrams

Power PCB Layout

Wiring Connection Diagram

Overall Wiring Interconnections

Component Illustrations

IC, Transistor, and Diode Pinouts

Parts Lists and Locations

Cabinet Parts Location and List

Diagrams and list identifying cabinet components and their part numbers.

Electrical Parts List

Comprehensive list of all electrical components with part numbers and specifications.

Panasonic SB-WA870EB Specifications

General

Brand	Panasonic
Model	SB-WA870EB
Category	Subwoofer
Language	English