Panasonic SB-WA330E Manual de usuario
Table Of Contents
COVER
1 Safety Precautions
1.1 GENERAL GUIDELINES
1.1.1 LEAKAGE CURRENT COLD CHECK
1.1.2 LEAKAGE CURRENT HOT CHECK (See Figure 1.)
2 Handling the Lead-free Solder
2.1 About lead free solder (PbF)
3 Before Repair and Adjustment
4 Protection Circuitry
5 Connection of the Speaker Cables
6 Disassembly Procedure
6.1 Disassembly of the Speaker Unit
6.2 Main Component Replacement Procedures
6.2.1 Replacement of the Power IC
7 Connection of the Speaker Wiring
8 Block Diagram
9 Schematic Diagram
10 Printed Circuit Board
11 Wiring Connection Diagram
12 Illustration of IC ’ s, Transistors and Diodes
13 Parts Location and Replacement Parts List
13.1 Cabinet
13.1.1 Cabinet Parts Location
13.1.2 Cabinet Parts List
13.2 Component Parts List
13.3 Packing Materials & Accessories Parts List
13.4 Packaging
Service Manual
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ORDER NO. MD0305153C2
Active Subwoofer System
●SB-WA330E
SB-WA330EB
Colour
(S)...Silver Type
Specification
Active subwoofer
Type 1 way, 1 speaker, bass-ref.
Speaker unit
Woofer 17 cm cone type 4Ω
Input power 200 W (Music)
Output sound pressure level 80 dB/ W (1.0 m)
Frequency range 40 Hz-220 Hz (-16 dB)
45 Hz-180 Hz (-10 dB)
Dimensions (W x H x D) 160 x 450 x 424 mm
Mass 11.5 kg
General
Power supply AC 230 V, 50 Hz (E)
AC 230-240 V, 50 Hz (EB)
Power consumption 210 W
Note :
Specifications are subject to change without notice.
Mass and dimensions are approximate.
System : SC-HT500 (E) Music Center: SA-HT500 (E)
Satellite speakers: SB-HT500 (E)
Active Subwoofer: SB-WA330 (E)
System : SC-HT500 (EG) Music Center: SA-HT500 (EG)
Satellite speakers: SB-HT500 (E)
Active Subwoofer: SB-WA330 (E)
System : SC-HT500 (EB) Music Center: SA-HT500 (EB)
Satellite speakers: SB-HT500 (E)
Active Subwoofer: SB-WA330 (EB)
SB-STP1EG-S consists of SB-WA330E-S x1,
SB-FS900E-S x 4 and SB-PC52E-S x 1
SB-STP1EB-S consists of SB-WA330EB-S x1,
SB-FS900E-S x 4 and SB-PC52E-S x 1
© 2003 PANASONIC AVC Networks Singapore Pte. Ltd. All rights reserved. Unauthorized copying and distribution is a violation of law.
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1 Safety Precautions
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1.1 GENERAL GUIDELINES
1.1.1 LEAKAGE CURRENT COLD CHECK
1.1.2 LEAKAGE CURRENT HOT CHECK (See Figure 1.)
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1.1 GENERAL GUIDELINES
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1. When servicing, observe the original lead dress. If a short circuit is found, replace all parts
which have been overheated or damaged by the short circuit.
2. After servicing, see to it that all the protective devices such as insulation barriers, insulation
papers shields are properly installed.
3. After servicing, make the following leakage current checks to prevent the customer from
being exposed to shock hazards.
1.1.1 LEAKAGE CURRENT COLD CHECK
1.1.2 LEAKAGE CURRENT HOT CHECK (See Figure 1.)
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1.1.1 LEAKAGE CURRENT COLD CHECK
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1. Unplug the AC cord and connect a jumper between the two prongs on the plug.
2. Measure the resistance value, with an ohmmeter, between the jumpered AC plug and each
exposed metallic cabinet part on the equipment such as screwheads, connectors, control shafts,
etc. When the exposed metallic part has a return path to the chassis,the reading should be
between 1MΩand 5.2Ω.
When the exposed metal does not have a return path to the chassis, the reading must be
.
Fig. 1
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1.1.2 LEAKAGE CURRENT HOT CHECK (See
Figure 1.)
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1. Plug the AC cord directly into the AC outlet. Do not use an isolation transformer for this
check.
2. Connect a 1.5kΩ, 10 watts resistor, in parallel with a 0.15μF capacitors, between each
exposed metallic part on the set and a good earth ground such as a water pipe, as shown in
Figure 1.
3. Use an AC voltmeter, with 1000 ohms/volt or more sensitivity, to measure the potential across
the resistor.
4. Check each exposed metallic part, and measure the voltage at each point.
5. Reverse the AC plug in the AC outlet and repeat each of the above measurements.
6. The potential at any point should not exceed 0.75 volts RMS. A leakage current tester
(Simpson Model 229 or equivalent) may be used to make the hot checks, leakage current must
not exceed 1/2 milliamp. In case a measurement is outsideof the limits specified, there is a
possibility of a shock hazard, and the equipment should be repaired and rechecked before it is
returned to the customer.
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2 Handling the Lead-free Solder
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2.1 About lead free solder (PbF)
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2.1 About lead free solder (PbF)
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Distinction of PbF P.C.B. :
P.C.B.s (manufactured) using lead free solder will have a PbF stamp on the P.C.B.
Caution:
●Pb free solder has a higher melting point that standard solder; Typically the melting point is 50
- 70°F (30 - 40°C) higher.
Please use a high temperature soldering iron. In case of the soldering iron with
temperaturecontrol, please set it to 700 ± 20°F (370 ± 10°C).
●Pb free solder will tend to splash when heated too high (about 1100°F/600°C).
●When soldering or unsoldering, please completely remove all of the solder on the pins or
solder area, and be sure to heat the soldering points with the Pb free solder until it melts
enough.
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