Panasonic SB-WA330E Service Manual
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Panasonic SB-WA330E Service Manual

Active subwoofer system
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COVER
PV
6 Disassembly Procedure

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Summary of Contents for Panasonic SB-WA330E

  • Page 1: Table Of Contents

    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...
  • Page 2 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...
  • Page 3 Service Manual TOP NEXT 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)
  • Page 4 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. TOP NEXT...

  • Page 5: Safety Precautions

    1 Safety Precautions TOP PREVIOUS NEXT 1.1 GENERAL GUIDELINES 1.1.1 LEAKAGE CURRENT COLD CHECK 1.1.2 LEAKAGE CURRENT HOT CHECK (See Figure 1.) TOP PREVIOUS NEXT...

  • Page 6: General Guidelines

    1.1 GENERAL GUIDELINES TOP PREVIOUS NEXT 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.

  • Page 7: Leakage Current Cold Check

    1.1.1 LEAKAGE CURRENT COLD CHECK TOP PREVIOUS NEXT 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.

  • Page 8: Leakage Current Hot Check (See Figure 1.)

    1.1.2 LEAKAGE CURRENT HOT CHECK (See Figure 1.) TOP PREVIOUS NEXT 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.

  • Page 9: Handling The Lead-Free Solder

    2 Handling the Lead-free Solder TOP PREVIOUS NEXT 2.1 About lead free solder (PbF) TOP PREVIOUS NEXT...

  • Page 10: About Lead Free Solder (Pbf)

    2.1 About lead free solder (PbF) TOP PREVIOUS NEXT 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.

  • Page 11: Before Repair And Adjustment

    3 Before Repair and Adjustment TOP PREVIOUS NEXT Disconnect AC power, discharge Power Supply Capacitors C546, C547, C548, C549 through a 10 Ω, 1 W resistor to ground. DO NOT SHORT-CIRCUIT DIRECTLY (with a screwdriver blade, for instance), as this may destroy solid state devices.

  • Page 12: Protection Circuitry

    4 Protection Circuitry TOP PREVIOUS NEXT The protection circuitry may have operated if either of the following conditions are noticed: No sound is heard when the power is turned on. Sound stops during a performance. The function of this circuitry is to prevent circuitry damage if, for example, the positive and negative speaker connection wires are “shorted”, or if speaker systems with an impedance less than the indicated rated impedance of the amplifier are used.

  • Page 13: Connection Of The Speaker Cables

    5 Connection of the Speaker Cables TOP PREVIOUS NEXT 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 14 6 Disassembly Procedure TOP PREVIOUS NEXT “ATTENTION SERVICER” Some chassis components may have sharp edges. Be careful when disassembling and servicing. This section describes procedures for checking the operation of the major printed circuit boards and replacing the main components. For reassembly after operation checks or replacement, reverse the respective procedures.

  • Page 15: Disassembly Of The Speaker Unit

    6.1 Disassembly of the Speaker Unit TOP PREVIOUS NEXT Step 1: Remove 2 screws from the rear panel.
  • Page 16 Step 2: Remove all screws. Step 3: Remove the Stand Base. Step 4: Remove 5 screws from the speaker bottom. Step 5: Pull the Power/Amp Unit as shown.
  • Page 17 Step 6: Release the connector CN506 and pull out the Power/Amp Unit. Step 7: Push the Net Frame from two holes inside the unit. Step 8: Remove the Net Frame.
  • Page 18 Step 9: Remove all the screws. Step 10: Remove the Speaker.
  • Page 19 Step 11 & 12: Remove all the screws.
  • Page 20 Step 13: Release the connector CN507. Step 14: Remove the 2 screws. Step 15 & 16: Remove all the screws.
  • Page 21 Step 17: Place the Power PCB as shown for checking.
  • Page 22 Checking for AC Inlet PCB. TOP PREVIOUS NEXT...

  • Page 23: Main Component Replacement Procedures

    6.2 Main Component Replacement Procedures TOP PREVIOUS NEXT 6.2.1 Replacement of the Power IC TOP PREVIOUS NEXT...

  • Page 24: Replacement Of The Power Ic

    6.2.1 Replacement of the Power IC TOP PREVIOUS NEXT Step 1 & 2: Remove all the screws.
  • Page 25 Step 3: Desolder the Power IC terminal and replace the component. TOP PREVIOUS NEXT...

  • Page 26: Connection Of The Speaker Wiring

    7 Connection of the Speaker Wiring TOP PREVIOUS NEXT TOP PREVIOUS NEXT...

  • Page 27: Block Diagram

    8 Block Diagram TOP PREVIOUS NEXT TOP PREVIOUS NEXT...

  • Page 28: Schematic Diagram

    9 Schematic Diagram TOP PREVIOUS NEXT (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. Accordingly, there may arise some error in voltage values and waveformsdepending upon the internal impedance of the tester or the measuring unit.

  • Page 29: Printed Circuit Board

    10 Printed Circuit Board TOP PREVIOUS NEXT TOP PREVIOUS NEXT...

  • Page 30: Wiring Connection Diagram

    11 Wiring Connection Diagram TOP PREVIOUS NEXT TOP PREVIOUS NEXT...

  • Page 31: Illustration Of Ic' S, Transistors And Diodes

    12 Illustration of IC’ s, Transistors and Diodes TOP PREVIOUS NEXT TOP PREVIOUS NEXT...

  • Page 32: Parts Location And Replacement Parts List

    13 Parts Location and Replacement Parts List TOP PREVIOUS NEXT Notes: Important safety notice: Components identified by mark have special characteristics important for safety. Furthermore, special parts which have purposes of fire-retardent (resistors), high-quality sound (capacitors), low noise (resistors), etc are used. When replacing any of these components, be sure to use only manufacturer’s specified parts shown in the parts list.
  • Page 33 13.2 Component Parts List 13.3 Packing Materials & Accessories Parts List 13.4 Packaging TOP PREVIOUS NEXT...

  • Page 34: Cabinet

    13.1 Cabinet TOP PREVIOUS NEXT 13.1.1 Cabinet Parts Location 13.1.2 Cabinet Parts List TOP PREVIOUS NEXT...

  • Page 35: Cabinet Parts Location

    13.1.1 Cabinet Parts Location TOP PREVIOUS NEXT TOP PREVIOUS NEXT...

  • Page 36: Cabinet Parts List

    13.1.2 Cabinet Parts List TOP PREVIOUS NEXT Ref. No. Part No. Part Name & Description Remarks CABINET AND CHASSIS RFKHBWAMT1PS SPK CABINET ASS’Y RMG0520-K CATCH XTB4+12AFN SCREW RGK1601-S STAND ORNAMENT RMQ0705 EVA PACKING RKA0147-K FOOT RYB0298AJ NET FRAME ASS’Y XTB4+14AFN SCREW (WOOFER) RGNX0175A-S NAME PLATE LABEL...

  • Page 37: Component Parts List

    13.2 Component Parts List TOP PREVIOUS NEXT Ref. No. Part No. Part Name & Description Remarks PRINTED CIRCUIT BOARD REP3435F POWER P.C.B./ AC INLET P.C.B./ TRANSFORMER P.C.B./ LED P.C.B. [M]E (RTL) REP3435G POWER P.C.B./ AC INLET P.C.B./ TRANSFORMER P.C.B./ LED P.C.B. [M]EB (RTL) INTEGRATED CIRCUITS IC501 RSN311W64B-P...
  • Page 38 D500 B0AACK000004 DIODE D501 B0JAPG000019 DIODE D502 B0JAPG000019 DIODE D503 MA2C700A0F DIODE D504 B0AACK000004 DIODE D505 B0AACK000004 DIODE D506 B0AACK000004 DIODE D507 B0AACK000004 DIODE D508 B0AACK000004 DIODE D509 B0BA5R100013 DIODE D510 B0BA9R600002 DIODE D511 B0HARM000017 DIODE D512 B0HARM000017 DIODE D513 B0HARM000017 DIODE D514...
  • Page 39 CP502 K1KA07A00123 2P CONNECTOR COILS & TRANSFORMERS L500 RLQZ371 LINE FILTER L501 G0AR76Y00001 CHOKE COIL L502 G0AR76Y00001 CHOKE COIL L503 G0AR76Y00001 CHOKE COIL L504 G0AR76Y00001 CHOKE COIL L505 G0AR76Y00001 CHOKE COIL T501 ETP76VSU62CA POWER TRANSFORMER T502 G4C2AAJ00005 BACK-UP TRANSFORMER COMPONENT COMBINATION Z501 ERZV10V511CS ZENER...
  • Page 40 HOLDERS H500 K1YF12000002 12P WIRE HOLDER H505A RMR0312 3P CABLE HOLDER H505B RMR0312 3P CABLE HOLDER WIRES REE1205 WIRE UNIT REE1204 WIRE UNIT W500 REX1146 WIRE UNIT W505 RWJ1103320XX 3P STRAND WIRE JACKS JK500 K2AA2B000004 JK AC INLET JK501 K4BC06B00027 JK 6P SPEAKER JK502 K4BC04B00056...
  • Page 41 R509 ERDS2TJ472T 4.7K 1/4W R510 ERDS2TJ472T 4.7K 1/4W R511 ERDS2TJ153T 15K 1/4W R512 ERDS2TJ153T 15K 1/4W R513 ERDS2TJ563T 56K 1/4W R514 ERDS2TJ563T 56K 1/4W R515 ERDS2TJ563T 56K 1/4W R516 ERDS2TJ563T 56K 1/4W R517 ERDS2TJ563T 56K 1/4W R518 ERDS2TJ563T 56K 1/4W R519 ERDS2TJ824T 820K 1/4W...
  • Page 42 R546 ERDS2TJ102T 1K 1/4W R547 ERDS2TJ394T 390K 1/4W R548 ERDS2TJ334T 330K 1/4W R549 ERDS2TJ473T 47K 1/4W R550 ERDS2TJ103T 10K 1/4W R551 ERDS2TJ472T 4.7K 1/4W R552 ERDS2TJ562T 5.6K 1/4W R553 ERDS2TJ563T 56K 1/4W R554 ERDS2TJ824T 820K 1/4W R555 ERDS2TJ104T 100K 1/4W R556 ERDS2TJ103T 10K 1/4W...
  • Page 43 R589 ERDS2TJ103T 10K 1/4W R590 ERDS2TJ102T 1K 1/4W R591 ERDS2TJ682T 6.8K 1/4W R592 ERDS2TJ683T 68K 1/4W R593 ERDS2TJ474T 470K 1/4W R594 ERDS2TJ103T 10K 1/4W R595 ERDS2TJ101T 100 1/4W R596 ERDS2TJ473T 47K 1/4W R597 ERDS2TJ103T 10K 1/4W R598 ERDS1FVJ152T 1.5K 1/2W R599 ERDS2TJ223T 22K 1/4W...
  • Page 44 C523 F1D1H473A012 0.047 50V C524 F1D1H1040002 0.1 50V C525 F1D1H1040002 0.1 50V C526 F1D1H1040002 0.1 50V C527 F1D1H1040002 0.1 50V C528 F1D1H473A012 0.047 50V C529 F1D1H1040002 0.1 50V C530 ECBT1H102KB5 1000P 50V C531 ECBT1H102KB5 1000P 50V C532 ECBT1H102KB5 1000P 50V C533 ECBT1H102KB5 1000P 50V...
  • Page 45 C562 ECQB1H562JF3 5600P 50V C563 ECQV1H823JL3 0.082 50V C564 ECBT1C122KR5 1200P 16V C565 F1D1H1040002 0.1 50V C566 F1D1H1040002 0.1 50V C567 ECA1HM100B 10 50V C568 ECBT1C103NS5 0.01 16V C569 F1D1H473A012 0.047 50V TOP PREVIOUS NEXT...

  • Page 46: Packing Materials& Accessories Parts List

    13.3 Packing Materials& Accessories Parts List TOP PREVIOUS NEXT Ref. No. Part No. Part Name & Description Remarks PACKING MATERIALS RPF0357 MIRAMAT (STAND) RPNX0189 POLYFOAM RPFX0045 MIRAMAT (S.WOOFER) [M] TOP PREVIOUS NEXT...

  • Page 47: Packaging

    13.4 Packaging TOP PREVIOUS TOP PREVIOUS...
  • Page 50 C0AABB000055 KRA102MTA RSN311W64B-P KTA12710YTA KTC3199GRTA KRC102MTA B0AACK000004 KTC2026 MA2C700A0F B0HARM000017 B0BA9R600002 Cathode Cathode Anode Anode B0EAKM000085 B0BA6R600008 SLI325URCT31 B0JAPG000019 B0BA5R100013 Cathode Anode Cathode Cathode Anode Anode...
  • Page 51 CN501 7..1 CP502 JK502 LED P.C.B. CN507 SPEAKER JK501 WOOFER H505A/W505 SOLDER SIDE SOLDER SIDE POWER P.C.B. SOLDER SIDE T501(POWER TRANSFORMER) TRANSFORMER P.C.B. T502(POWER TRANSFORMER) AC INLET AC IN JK500 P.C.B. 230~240V 50HZ CN502 SOLDER SIDE 7.

  • Page 52: Risk Of Electric Shock

    POWER P.C.B. (REP3435F...E) (REP3435G...EB) CAUTION RISK OF ELECTRIC SHOCK AC VOLTAGE LINE. PLEASE DO NOT TOUCH THIS P.C.B J570 CN501 J581 J528 R543 CP502 R544 7 6 5 4 3 2 1 R540 R539 Q513 Q507 C537 R542 J504 R572 R554 R541 J533...
  • Page 53 Q507 C537 R554 J505 C541 J513 Q510 Q508 Q501 J544 Q520 R570 J402 D518 J403 J567 J586 J568 J404 J587 J569 J405 J588 J560 J406 J417 R527 J584 R502 R517 R504 Q503 R508 R598 C511 R507 R503 R528 R567 D533 R568 C517 C543...
  • Page 54 SCHEMATIC DIAGRAM-1 : MAIN SIGNAL LINE : -B SIGNAL LINE POWER CIRCUIT : +B SIGNAL LINE IC501 C551 IC501 0.01 RSN311W64B-P POWER HIC E501 K4CZ01000027 R501 R513 4.7K R502 C507 18P 4.7K R514 C508 18P R524 120K D501-D502 R506 B0JAPG000019 R516 R526 C510 22P...
  • Page 55 SCHEMATIC DIAGRAM-2 : MAIN SIGNAL LINE : -B SIGNAL LINE POWER CIRCUIT : +B SIGNAL LINE R597 R594 C564 1200P Q514 R592 R403 R599 Q513 100K C565 R593 R571 C568 R591 R572 3.3K 0.01 6.8K 470K C562 IC502 5600P C0AABB000055 C524 C525 DUAL LOW-NOISE OP AMP...
  • Page 56 SCHEMATIC DIAGRAM-3 : -B SIGNAL LINE : +B SIGNAL LINE C555 R589 35V4.7 Q516 R578 KRC102MTA SYNC SWITCH CN502 R580 PCONT Q517 POWER CIRCUIT KTC2026 (CP502) ON SYNC R587 VOLTAGE REGULATOR D530 D528 SCHEMATIC 2.7K SYS6V DIAGRAM-2 C559 HELP 0.01 C556 R588 0.01...
  • Page 57 IC501 RSN311W64B-P POWER HIC POWER CONTROL CIRCUIT POWER CONTROL/PROTECTION CIRCUIT 12(11) (25) (19) D501 D502 Q506 INTERFACE SWITCH TO MAIN BLOCK (JK700) OF Q505 SA-HT500E/EB/EG-S, SA-ST1EB/EG-S SWITCHING SL(R) FILTER FILTER JK501(JK502) SURROUND SPEAKER FILTER FILTER JK502 CENTRE SPEAKER FILTER SUBWOOFER FL(R) FILTER FILTER...
  • Page 58 AC INLET P.C.B. (REP3435F...E) (REP3435G...EB) CAUTION RISK OF ELECTRIC SHOCK AC VOLTAGE LINE. PLEASE DO NOT TOUCH THIS P.C.B FC502 FC501 F1 250V T2AL T502 (POWER TRANSFORMER) L500 JK500 Q516 AC IN J500 RLY501 C555 J501 230V-240V R589 50HZ C557 R578 C558 J502...

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Sb-wa330eb

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