Panasonic sb wa 17 e service manual

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ORDER NO. MDOSO418602

Service Manual

SB-WA1 7

Specmcafion
it Active Subwoofer
Type 1 Way, 2 Speaker, Bass ref
Speaker unit (Woofer) 15 cm Cone type, 4 Q
84 dB/W (1.0 m)
34 H2220 HZ (-16 dB)
38 H2490 HZ (-10 dB)
202 x 410 x 500 mm

13.7 kg

Output sound pressure level

Frequency range

Dimensions (W x H x D)

Mass

II General
Power supply AC 230240 v, 50Hz (EB)

AC 230 v, 5on (E)

Active Subwoofer System

SB-WA17E
SB-WA17EB

Colour
(8)... Silver Type

n System ; SC-HT17(EG) Music Center: SA»HT17(EG)
Satellite Speakers: SB-HT17(P)
Active Subwoofer: SB-WA17(E)
n System : SC-HT17(EP) Music Center: SA-HT17(EP)
Satellite Speakers: SB-HT17(P)
Active Subwoofer: SB-WAt7(E)
n System : SC-HT17(EB) Music Center: SA-HT17(EB)

Satellite Speakers: SB-HT17(P)
Active Subwoofer: SB-WA17(EB)

Power consumption 390 W
Power consumption (standby 1 W
mode) SB-HT17P-S
Front Speakers SB-FSQ30P

Note . Center Speaker SB-PCQSOP

' Surround Speakers SB-FSBBOEG
Specifications are subject to change without notice.
Mass and dimensions are approximate.

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 professional 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

Panasonic

Page
1.1. GENERAL GUIDELINES ------------------------------------------------ 3

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

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SB-WA17E I SB-WA17EB

2 Caution for AC Mains Lead ..................................................... 4
3 Handling the Lead-free Solder ................................................ 5

3.1. About lead free solder (PbF)-
4 Before Repair and Adjustment

5 Protection Circuitry --------------
6 Connection of the Speaker Cables ----------------------------------------- 6
7 Disassembly Procedure ---------------------------------------------------------- 7
7.1. Disassembly flow chart ------------------------ 7
7.2. Disassembly of the Speaker Unit and Checking of the
P.C.B. --------------------------------------------------------------------------- 9
8 Voltage Measurement and Waveform Chart ------------------------- 15
8.1. Voltage Measuremen -15
8.2. Waveform Chart- 6
9 Block Diagram ------ -17

10 Notes of Schematic Diagram ------------------------------------------------ 18

11 Schematic Diagram --------------------------------------------------------------- 19
-------------------------- 19
11.2. Transformer Circuit and AC inlet Circui
11.3. Amplifier Circuit-
12 Printed Circuit Board --

11.1. Power Circuit --

12.1. Power P.C.B. --------------------------------------------------------------- 23
12.2. AC Inlet PCB. and Transformer P,C_B_ ------------------------ 25
12.3. Amplifier P.C.B_ .........................

13 Wiring Connection Diagram .................................................. 2-,

14 Illustration of ICs, Transistors and Diodes ........................... 23

15 Parts Location and Replacement Parts List ......................... 29
15.1. Cabinet ----------------

15.2. Electrical Parts List--
15.3. Packing Materials & Accessories Parts List
15.4. Packaging -------------------------------------------------------------------- 36