Panasonic SB-WA15E Service Manual
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Panasonic SB-WA15E Service Manual

System, silver
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Specification
n Active subwoofer
Type
Speaker unit (Woofer)
Output sound pressure level
Frequency range
Dimensions (W x H x D)
Mass
n General
Power supply
Power consumption
Power consumption (Standby
mode)
n System: SC-HT15EG-S
CONTENTS
1 Safety Precautions
1 Way 2 Speaker, Bass-ref.
13 cm cone type, 4 Ω
80 dB/W (1.0 m)
40 Hz-220 Hz (-16 dB)
45 Hz-180 Hz (-10 dB)
200 x 367.5 x 492 mm
11.3 kg
AC 230-240 V, 50 Hz (EB)
AC 230 V, 50 Hz (E)
340 W
1 W
Music Center: SA-HT15EG-S
Satellite speakers: SB-HT15P-S
Active subwoofer: SB-WA15E-S
Page
Active Subwoofer System
SB-WA15E
SB-WA15EB
Colour
(S)...Silver Type
n System: SC-HT15EP-S
n System: SC-HT15EB-S
Note :
Specifications are subject to change without notice.
Mass and dimensions are approximate.
3
© 2005 Matsushita Electric Industrial Co. Ltd.. All
rights
distribution is a violation of law.
ORDER NO. MD0503091C2
Music Center: SA-HT15EP-S
Satellite speakers: SB-HT15P-S
Active subwoofer: SB-WA15E-S
Music Center: SA-HT15EB-S
Satellite speakers: SB-HT15P-S
Active subwoofer: SB-WA15EB-S
reserved.
Unauthorized
Page
copying
and

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Summary of Contents for Panasonic SB-WA15E

  • Page 1 Speaker unit (Woofer) 13 cm cone type, 4 Ω Satellite speakers: SB-HT15P-S Output sound pressure level 80 dB/W (1.0 m) Active subwoofer: SB-WA15E-S Frequency range 40 Hz-220 Hz (-16 dB) 45 Hz-180 Hz (-10 dB) n System: SC-HT15EB-S Music Center: SA-HT15EB-S Dimensions (W x H x D) 200 x 367.5 x 492 mm...

  • Page 2: Table Of Contents

    SB-WA15E / SB-WA15EB 1.1. GENERAL GUIDELINES 10 Notes of Schematic Diagram 2 Caution for AC Mains Lead 11 Schematic Diagram 3 Handling the Lead-free Solder 11.1. Power Circuit 3.1. About lead free solder (PbF) 11.2. AC Inlet Circuit and Transformer Circuit...

  • Page 3: General Guidelines

    SB-WA15E / SB-WA15EB 1 Safety Precautions 1.1. GENERAL GUIDELINES 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, ensure that all the protective devices such as insulation barriers, insulation papers shields are properly installed.

  • Page 4: Caution For Ac Mains Lead

    SB-WA15E / SB-WA15EB 2 Caution for AC Mains Lead...

  • Page 5: Handling The Lead-Free Solder

    SB-WA15E / SB-WA15EB 3 Handling the Lead-free Solder 3.1. About lead free solder (PbF) 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 than standard solder: Typically the melting point is 50 - 70°F (30 - 40°C) higher.

  • Page 6: Connection Of The Speaker Cables

    SB-WA15E / SB-WA15EB 6 Connection of the Speaker Cables · Be sure to connect speaker cables before connecting the AC power supply cord. · The load impedance of any speaker used with this unit must be 4Ω. · Be sure to connect the cable from the right speaker to the right terminal and the cable from the left speaker to the left terminal.

  • Page 7: Disassembly Procedure

    SB-WA15E / SB-WA15EB 7 Disassembly Procedure “ATTENTION SERVICER” Some chassis components may have sharp edges. Be careful when disassembling and servicing. 1. This section describes procedures for checking the operation of the major printed circuit boards and replacing the main components.
  • Page 8 SB-WA15E / SB-WA15EB 7.1.2. Disassembly of the Power Amp Unit...

  • Page 9: Disassembly Of The Speaker Unit And Checking Of The

    SB-WA15E / SB-WA15EB 7.2. Disassembly of the Speaker Unit and Checking of the P.C.B. 7.2.1. Disassembly of the Front Panel Unit Step 3: Use the screwdriver slightly lift up the Front Panel unit as arrow shown. Note: Step 1: Slot a steel ruler into the holes to give a gap between Be careful with the bosses which are glued to the unit.
  • Page 10 SB-WA15E / SB-WA15EB · Assembly of the Front Panel unit. Step 1: Remove 4 screws from the Woofer 1. Step 1: Clean up the remaining glue at the 6 boss points and replace with the normal glue. Step 2: Remove the Woofer 1 by detaching the (+) and (-) wires.
  • Page 11 SB-WA15E / SB-WA15EB Step 1: Remove 4 screws from the Woofer 2. Step 2: Remove 3 screws from the rear panel. Step 2: Remove the Woofer 2 by detaching the (+) and (-) wires. 7.2.4. Disassembly of the Power Amp Unit Step 3: Slightly pull out the Power Amp unit as arrow shown.
  • Page 12 SB-WA15E / SB-WA15EB Step 4: Remove 4 screws from the rear panel. Step 5: Pull out the entire Power Amp unit. 7.2.5. Disassembly of the Rear Panel and Fan Unit Follow Step (1) to Step (4) described in section 7.2.4.
  • Page 13 SB-WA15E / SB-WA15EB Step 1: Disconnect the connector CN502. Step 2: Remove the AC Inlet P.C.B. by pulling the P.C.B. support claw as arrow shown. Steps 1 and 2: Remove 4 screws. Step 3: Desolder the terminals of Power IC and Transistors.

  • Page 14: Voltage Measurement And Waveform Chart

    SB-WA15E / SB-WA15EB 8 Voltage Measurement and Waveform Chart Note: · Indicated voltage values are the standard values for the unit measured by the DC electronic circuit tester (high-impedance) with the chassis taken as standard. Therefore, there may exist some errors in the voltage values, depending on the internal impedance of the DC circuit tester.

  • Page 15: Waveform Chart

    SB-WA15E / SB-WA15EB 8.2. Waveform Chart CN501 PIN 1 CN501 PIN 3 CN501 PIN 8 CN501 PIN 21 CD PLAY CD PLAY CD PLAY CD PLAY 19.8Vp-p (10msec.div) 20.2Vp-p (10msec.div) 1.06Vp-p (10msec.div) 5.52Vp-p (10msec.div) CN501 PIN 22 CN501 PIN 24...

  • Page 16: Block Diagram

    SB-WA15E / SB-WA15EB 9 Block Diagram IC501 RSN311W64D-P POWER HIC POWER CONTROL CIRCUIT POWER CONTROL/PROTECTION CIRCUIT 12(11) (25) (19) D501 D502 Q506 INTERFACE SWITCH TO MAIN BLOCK Q505 (JK2000) OF SA-HT15EG/EB/EP-S, SWITCHING SL(R)/SURRL(R) FILTER JK501(JK502) SURROUND SPEAKER CCH/CENTRE FILTER JK502...

  • Page 17: Notes Of Schematic Diagram

    SB-WA15E / SB-WA15EB 10 Notes of Schematic Diagram (All schematic diagrams may be modified at any time with the development of the new technology) Note: · The voltage value and waveforms are the reference voltage of this unit measured by DC electronic voltmeter (high impedance) and oscilloscope on the basis of chassis.

  • Page 18: Schematic Diagram

    SB-WA15E / SB-WA15EB 11 Schematic Diagram 11.1. Power Circuit SCHEMATIC DIAGRAM-1 : -B SIGNAL LINE : MAIN SIGNAL LINE POWER CIRCUIT : +B SIGNAL LINE IC501 IC501 RSN311W64D-P POWER HIC C551 0.01 E501 R513 R501 K4CZ01000027 4.7K R502 C507 18P 4.7K...
  • Page 19 SB-WA15E / SB-WA15EB SCHEMATIC DIAGRAM-2 : MAIN SIGNAL LINE : -B SIGNAL LINE POWER CIRCUIT : +B SIGNAL LINE JK501 SRLch L501 G0AR76Y00001 FRch R621 FLch L502 G0AR76Y00001 C581 R622 0.001 E500 K4CZ01000027 L505 G0AR76Y00001 JK502 L503 G0AR76Y00001 R625 SRRch...

  • Page 20: Ac Inlet Circuit And Transformer Circuit

    SB-WA15E / SB-WA15EB 11.2. AC Inlet Circuit and Transformer Circuit SCHEMATIC DIAGRAM-3 : -B SIGNAL LINE : +B SIGNAL LINE C555 R589 35V4.7 Q516 R578 KRC102MTA SYNC SWITCH CN502 HELP D527~D530 R580 B0EAKM000122 PCONT D.GND Q517 POWER CIRCUIT R587 B1BACG000048 2.7K...

  • Page 21: Printed Circuit Board

    SB-WA15E / SB-WA15EB 12 Printed Circuit Board 12.1. Power P.C.B. POWER P.C.B (REPV0067B)...E (REPV0067C)...EB CN501 J539 J570 J528 CP502 C550 E500 TO MAIN UNIT D508 J567 R583 J504 J533 C576 D504 C577 R606 Q505 Q506 J512 D558 R521 R522 R581...
  • Page 22 SB-WA15E / SB-WA15EB Q557 Q556 D562 Q552 D508 J567 R583 C580 J504 CN503 J533 C576 J586 R606 R582 Q553 Q555 Q554 Q506 Q501 D560 Q502 R558 D555 D558 D557 J587 Q520 R564 R402 R581 J544 D599 J588 J503 J543 J578...

  • Page 23: Ac Inlet P.c.b. And Transformer P.c.b

    SB-WA15E / SB-WA15EB 12.2. AC Inlet P.C.B. and Transformer P.C.B. AC INLET P.C.B (REPV0067B)...E (REPV0067C)...EB (BLU) (BRW) 250V 2A FC501 FC502 T502 (SUB-TRANSFORMER) JK500 L500 Q516 Q517 J6001 RLY501 C555 J6002 R589 R578 Q519 AC IN C557 C558 J6003 230-240V...

  • Page 24: Wiring Connection Diagram

    SB-WA15E / SB-WA15EB 13 Wiring Connection Diagram POWER P.C.B. SOLDER SIDE CN501 TO MAIN UNIT 7..1 CP502 CN503 JK502 CENTRE SPEAKER SURROUND RIGHT SPEAKER SURROUND LEFT SPEAKER FRONT RIGHT SPEAKER CN506 FRONT LEFT CN507 SPEAKER...

  • Page 25: Illustration Of Ic 痴, Transistors And Diodes

    SB-WA15E / SB-WA15EB 14 Illustration of IC’s, Transistors and Diodes RSN311W64D-P KTC3199GRTA B1BACG000048 B1GCCFJJ0016 B1ACCF000094 KRC102MTA B1BCCG000023 2SD0592ARA MA2C700A0F B0FBAM000009 B0BA5R100013 B0EAKM000122 B0BA6R600008 Cathode Cathode Cathode Anode Anode Anode B0BA01900005 B0JAPG000019 B0AACK000004 B0BA01100004 B0EAKM000117 B0BA5R600016 Cathode Anode...

  • Page 26: Parts Location And Replacement Parts List

    SB-WA15E / SB-WA15EB 15 Parts Location and Replacement Parts List Notes: · Important safety notice: Components identified by mark have special characteristics important for safety. Furthermore, special parts which have purposes of fire-retardant (resistors), high-quality sound (capacitors), low noise (resistors), etc are used.

  • Page 27: Cabinet

    SB-WA15E / SB-WA15EB 15.1. Cabinet 15.1.1. Cabinet Parts Location...
  • Page 28 SB-WA15E / SB-WA15EB...
  • Page 29 SB-WA15E / SB-WA15EB 15.1.2. Cabinet Parts List Ref. Part No. Part Name & Description Remarks CABINET AND CHASSIS RFKHBWA830PP SUB WOOFER CAB ASS’Y XTB3+12JFJ SCREW (LIGHT. CHIP) B3AAA0000583 LED (RED) RGKX0284-HJ XTB4+12AFJ SCREW RKAX0019-KJ LEG CUSION RYQX0167A-SJ FRONT PANEL UNIT...

  • Page 30: Electrical Parts List

    SB-WA15E / SB-WA15EB 15.2. Electrical Parts List Ref. Part No. Part Name & Description Remarks CP502 K1KA07AA0297 CONNECTOR Ref. Part No. Part Name & Description Remarks COILS & TRANSFORMERS PRINTED CIRCUIT BOARD L500 ELF15N035AN LINE FILTER REPV0067B POWER P.C.B./ AC INLET...
  • Page 31 SB-WA15E / SB-WA15EB Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks R510 D0AE472JA048 4.7K 1/4W CAPACITORS R511 D0AE153JA048 15K 1/4W R512 D0AE153JA048 15K 1/4W C500 ECKWRS102MBC 1000P 400V R513 D0AE563JA048 56K 1/4W...

  • Page 32: Packing Materials & Accessories Parts List

    SB-WA15E / SB-WA15EB 15.3. Packing Materials & Accessories Parts List Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks PACKING MATERIALS RPNV0068 POLYFOAM RPFX0113 MIRAMAT 15.4. Packaging FLE0503 J/A/S/E/N...

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