Panasonic sb wa 530 eb service manual

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ORDER NO. MD0502044C2

Service Manual

-:II-'
SB-WA530
Spedficafion
n Active Subwoofer
Type 1 way, 2 speaker system, Bass

reflex
Speaker unit(s)
1. Woofer
2. Woofer

Output sound pressure level

13 cm Cone type, 49

13 cm Cone type, 411

so dB/W (1.0 m)

40 HZ-220 HZ (-16 dB)

45 HZ-180 HZ (-10 dB)
201.5 x 368.2 x 491.5 mm
11.3 kg

Frequency range

Dimensions (W x H x D)
Mass

II General

Power consumption 250 W

Active Subwoofer System

SB-WA530EB

Colour

(S)... Silver Type

Power supply AC 230-240V, 50Hz
Note :

Specifications are subject to change without notice.

Mass and dimensions are approximate.
n System : SC»HT530(EB) Music Center : SA»HT530(EB)
Satellite Speakers : SB-HT530(EB)
Active Subwoofer : SB»WA530(EB)

SB-HT53OEB-S
Front Speaker
Center Speaker
Surround Speaker

SB-FSSSOEB
SB-PC730P
SB-FS530EB

A WARNING

This service information is designed for experienced repair technicians only and is not designed for use by the general public.

It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced protessional technicians. Any attempt to service
or repair the product or products dealt with in this service information by anyone else could result in serious injury or death.

CONTENTS

Page

1 Safety Precautions ------------------------------------------------------------------ 3
1.1. GENERAL GUIDELINES ------------------------------------------------ 3

2 Caution for AC Mains Lead ----------------------------------------------------- 4
3 Handling the Lead-free Solder ------------------------------------------------ 5
3.1. About lead free solder (PbF) ------------------------------------------ 5

Panasonic

Page

4 Before Repair and Adjustment ----------------------------------------------- 5
5 Protection Circuitry ----------------------------------------------------------------- 5
6 Connection of the Speaker Cables ----------------------------------------- 6
7 Disassembly Procedure ---------------------------------------------------------- 7
7.1. Disassembly flow chart --------------------------------------------------- 7

© 2005 Matsushita Electric Industrial Co. Ltd.. All
rights reserved. Unauthorized copying and
distribution is a violation of law.

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SB-WA530EB

7.2. Disassembly of the Speaker Unit and Checking of the
PCB. --------------------------------------------------------------------------- 8
8 Voltage Measurement and Waveform Chart

8.1. Voltage Measurement-

8.2. Waveform -------------

9 Block Diagram ---------------------------------------------------------------------- 15
10 Notes of Schematic Diagram ................................................ 15
11 Schematic Diagram ............................................................... 17

11.1. Power Circuit-- ---------------------------------------------------------- 17
11.2. Transformer Circuit and AC Inlet Circuit ------------------------ 19

12 Printed Circuit Board ------------------------------------------------------------ 20
12.1. Power P.C.B. --------------------------------------------------------------- 20
12.2. AC Inlet PCB. and Transformer P.C.B

13 Wiring Connection Diagram

14 Illustration of ICs, Transistors and Diodes

15 Parts Location and Replacement Parts List ......................... 25
15.1. Cabinet ------------------------------------------------------------------------ 25
15.2. Electrical Parts List ....................................................... 29
15.3. PaCking Materials & Accessories Parts List ................... 31

15.4. Packaging -------------------------------------------------------------------- 31