Panasonic sb wa 340 gcs service manual
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Page 1
ORDER NO. MD0306217C3
Service Manual
Active Subwoofer System
SB-WA34OGCS
S B-WA34O
Specification
I Active subwoofer
Type
Speaker unit
Woofer
Input power
Output sound pressure level
Frequency range
Dimensions (W x H x D)
Mass
I General
Power supply
1 Way. 1 Speaker. Bass-ref.
17 cm cone type. 4 n
240 W (Music)
30 dB/W (1.0 m)
40 HZv220 HZ (-16 dB)
45 Hz-180 H2 (-10 dB)
160 X 450 X 424 mm
12 kg
AC 110 W127 V/220-230 V/24O V,
Colour
(S)...Silver Type
Mass and dimensions are approximate.
I System : sc
I System : SC-HT850 (GC)
I System : SC-HTSOO (SC)
I System : SC-HT900 (GCS)
Music Center: SA-HT700 (GCP)
)
)
50/60 1 Active Subwoofer: SB-WA34O (GCS)
POWer 0°"5umPi0n 25° W I System : SC-MT1 (ace) Music Center: SA-MT1 (GCS)
Satellite speakers: SB-MT1 (P)
Note : Active Subwoofer: SB-WA340 (GCS)
Specifications are subject to change without notice.
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.
CONTENTS
1 Safety Precautions -----------
Page
....................................................... 3
Panasonic
Page
© 2003 PANASONIC AVC Networks Singapore Pte,
Satellite speakers: SB-HT690 (P)
Active Subwoofer: SB-WA34O (GCS
Music Center: SA-HTSSO ((50
Satellite speakers: SB-HT900 (P
Active Subwoofer: SB-WA34O (GCS
Music Center: SA-HTQOO (60
Satellite speakers: SB-HTQOO (P
Active Subwoofer: SB-WA34O (GCS)
Music Center: SA-HTQOO (GCS
Satellite speakers: SB-HT900 (P
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.
Ltd. All rights reserved. Unauthorized copying and
distribution is a violation of law.
Page 2
SB-WAMOGCS
1.1. GENERAL GUIDELINES---
2 Handling the Lead-free Solder
2.1. About lead free solder (PbF)-
3 Before Use ------------------------------------------------------------------------------ 4
4 Before Repair and Adjustment ............................................... 4
5 Protection Circuitry ----------------------------------------------------------------- 4
6 Connection of the Speaker Cables ......................................... 5
7 Disassembly Procedure .......................................................... 6
7.1. Disassembly of the Speaker Unit .................................... 6
7.2. Main Component Replacement Procedures ..................... 9
8 Connection of the Speaker Wiring ......................................... 9
9 Block Diagram ------
10 Schematic Diagram-
11 Printed Circuit Board
12 Wiring Connection Diagram -------------------------------------------------- 19
13 Illustration of ICs, Transistors and Diodes .......................... 20
14 Parts Location and Replacement Parts List ......................... 21
14.1. Cabinet ------------------------------------------------------------------------ 22
14.2. Component Parts List ................................................... 24
14.3. Packing Materials 3. Accessories Parts List ................... 27
14.4. Packaging -------------------------------------------------------------------- 27