Technics SBWA 330 GCS Service Manual
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Extracted text from Technics SBWA 330 GCS Service Manual (Ocr-read)
Page 1
ORDER NO. MD0306220C3
Service Manual
SB-WA330
Specification
I Active subwoofer
Type
Speaker unit
1 way, 1 speaker, bass-ref.
Woofer 17 cm cone type 4 Q
200 w (Music)
so dB/W (1.0 m)
40 Hz-220 HZ (-16 dB)
45 H2v180 H2 (-10 dB)
160 x 450 x 424 mm
11.5 kg
Input power
Oulput sound pressure level
Frequency range
Dimensions (W x H x D)
Mass
I General
Power supply AC 110 V/127 V/220-230 V/24-0 V,
50/60 Hz
Power consumption 210 W
Active Subwoofer System
SB-WA33OGCS
Colour
(S)...Silver Type
Note :
Specifications are subject to change without notice.
Mass and dimensions are approximate.
I System : SC-HT500 ((30) Music Center: SA-HTSOO (60)
Satellite speakers: SB-HTGQO (P)
Active Subwoofer: SB-WA330 (603)
Music Center: SA-HTTOO (GC)
Satellite speakers: SB-HT700 (P)
Active Subwoofer: SB-WA330 (GCS)
Music Center: SA-HT700 (GCS)
Satellite speakers: SB-HT700 (P)
Active Subwoofer: SB-WA330 (608)
I System : SC-H1700 (GO)
I System : SC-Hl700 (GCS)
AWARNING
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 prolessional 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 Handling the Lead-free Solder "-4
2.1. About lead free solder (PbF) '-
Panasonic
Page
3 Be'ore Use ------------------------------------------------------------------------------ 4
4 Before Repair and Adjustment ............................................... 4
5 Protection Circuitry -------------------- .4
6 Connection of the Speaker Cables 5
© 2003 PANASONIC AVC Networks Singapore Pte.
Ltd. All rights reserved. Unauthorized copying and
distribution is a violation of law.
Page 2
SB-WASSOGCS
7 Disassembly Procedure .......................................................... s
7.1. Disassembly of the Speaker Unil ---------- 6
7-2- Main Component Replacement Procedure 9
8 Connection oi the Speaker Wiring ................
9 Block Diagram ------------------------------------------------------------------- 1O
10 Schematic Diagram ............................................................... 11
11 Printed Circuit Board ------------------------------------------------------------ 15
12 Wiring Connection Diagram ---------
13 Illustration of lCs, Transistors and Diodes-
14 Parts Location and Replacement Paris List
14.1. Cabinet -------------------------------------------
14.2. Component Parts List --------------------------------------------------- 24
14.3. Packing Materials & Accessories Parts List ------------------- 27
14.4. Packaging -------------------------------------------------------------------- 27