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SB-WA870EG

Panasonic
Part Number SB-WA870EG
Manufacturer Panasonic
Description Active Subwoofer System Service Manual
Published May 23, 2014
Detailed Description ORDER NO. MD0403127C2 Active Subwoofer System SB-WA870EB SB-WA870EG Colour (S)...Silver Type Specification n Active s...
Datasheet PDF File SB-WA870EG PDF File

SB-WA870EG
SB-WA870EG


Overview
ORDER NO.
MD0403127C2 Active Subwoofer System SB-WA870EB SB-WA870EG Colour (S).
.
.
Silver Type Specification n Active subwoofer Type Speaker unit Woofer Output sound pressure Frequency range 1 way, 1 speaker system (Bass reflex) Impedance 4 Ω 20 cm Cone type 84 dB/W (1.
0 m) 34 Hz-220 Hz (-16 dB) 38 Hz-190 Hz (-10 dB) Dimensions (W x H x D) Mass 248 x 417 x 476.
6 mm 16.
4 kg n System : SC-HT870 (E) Music Center: SA-HT870 (E) Satellite Speakers: SB-HT870 (P) Active Subwoofer: SB-WA870 (EG) n General Power consumption Power supply Continental Europe and Russia The United Kingdom, Australia and N.
Z.
Power consumption in standby mode AC 230V, 50Hz AC 230V-240V, 50Hz n System : SC-HT870 (EG) 0.
7 W Music Center: SA-HT870 (EG) Satellite Speakers: SB-HT870 (P) Active Subwoofer: SB-WA870 (EG) 390V n System : SC-HT870 (EB) Music Center: SA-HT870 (EB) Satellite Speakers: SB-HT870 (P) Active Subwoofer: SB-WA870 (EB) SB-HT870P-S consists of : SB-PF921P-S x 2, SB-PS921P-S x 2 and SB-PC920P-S x 1 Notes : 1.
Specifications are subject to change without notice.
2.
Mass and dimensions are approximate.
CONTENTS Page 1 Safety Precautions 1.
1.
GENERAL GUIDELINES 3 3 2 Handling the Lead-free Solder 2.
1.
About lead free solder (PbF) © 2004 Panasonic AVC Networks Singapore Pte.
Ltd.
All rights reserved.
Unauthorized copying and distribution is a violation of law.
Page 4 4 http://www.
Datasheet4U.
com SB-WA870EB / SB-WA870EG 3 Before Repair and Adjustment 4 Protection Circuitry 5 Connection of the Speaker Cables 6 Disassembly Procedure 6.
1.
Disassembly flow chart 6.
2.
Disassembly of the Speaker Unit and Checking of the P.
C.
B.
6.
3.
Main Component Replacement Procedures 7 Connection of the Speaker Wiring 8 Block Diagram 4 4 5 6 6 9 Schematic Diagram 10 Printed Circuit Board 11 Wiring Connection Diagram 12 Illustration of IC , Transistors and Diodes 16 21 26 27 28 29 31 34 34 13 Parts Location and Replacement Parts List 13.
1.
Cabinet 7 12 14 15 13.
2.
Electrical Parts List 13.
3.
Packing...


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