Panasonic SB-WA880 Service Manual
  1. Manuals
  2. Brands
  3. Panasonic Manuals
  4. Subwoofer
  5. SB-WA880
  6. Service manual
Panasonic SB-WA880 Service Manual

Panasonic SB-WA880 Service Manual

Hide thumbs Also See for SB-WA880:
Table of Contents

Advertisement

Quick Links

Specification
n Active subwoofer
Type
Speaker unit(s)
1. Woofer
2. Woofer
Output sound pressure
Frequency range
Dimensions (W x H x D)
Mass
n General
Power consumption
Power supply
Note :
Specifications are subject to change without notice.
Mass and dimensions are approximate.
CONTENTS
1 Safety Precautions
1 way, 2 speaker system, Bass reflex
15 cm Cone type
15 cm Cone type
84 dB/W (1.0 m)
34 Hz-220 Hz (-16 dB)
38 Hz-190 Hz (-10 dB)
202 x 410 x 500 mm
AC 110 V/127 V/220-230 V/240V,
Active Subwoofer System
SB-WA880GC
SB-WA880GCT
Colour
(S)... Silver Type
n System : SC-HT880(GC)
n System : SC-HT880(GCS)
n System : SC-HT880(GS)
13.7 kg
n System : SC-HT880(GCT)
340 W
50/60Hz
Page
3
ORDER NO. MD0504180C3
Music Center: SA-HT880(GC)
Satellite Speakers: SB-HT880(GC)
Active Subwoofer: SB-WA880(GC)
Music Center: SA-HT880(GCS)
Satellite Speakers: SB-HT880(GC)
Active Subwoofer: SB-WA880(GC)
Music Center: SA-HT880(GS)
Satellite Speakers: SB-HT880(GC)
Active Subwoofer: SB-WA880(GC)
Music Center: SA-HT880(GCT)
Satellite Speakers: SB-HT880(GC)
Active Subwoofer: SB-WA880(GCT)
© 2005 Matsushita Electric Industrial Co. Ltd.. All
rights
reserved.
Unauthorized
distribution is a violation of law.
Page
copying
and

Advertisement

Table of Contents
loading

Related Manuals for Panasonic SB-WA880

Summary of Contents for Panasonic SB-WA880

  • Page 1 System : SC-HT880(GC) Music Center: SA-HT880(GC) Speaker unit(s) Satellite Speakers: SB-HT880(GC) 1. Woofer 15 cm Cone type Active Subwoofer: SB-WA880(GC) 2. Woofer 15 cm Cone type n System : SC-HT880(GCS) Music Center: SA-HT880(GCS) Output sound pressure 84 dB/W (1.0 m)

  • Page 2: Table Of Contents

    SB-WA880GC / SB-WA880GCT 1.1. GENERAL GUIDELINES 10.1. Power Circuit 2 Before Use 10.2. Transformer Circuit and AC Inlet Circuit 3 Before Repair and Adjustment 11 Printed Circuit Board 4 Protection Circuitry 11.1. Power P.C.B. 5 Handling the Lead-free Solder 11.2. AC Inlet P.C.B., Transformer P.C.B. and Voltage Selector 5.1.

  • Page 3: General Guidelines

    SB-WA880GC / SB-WA880GCT 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. 3.

  • Page 4: Before Use

    SB-WA880GC / SB-WA880GCT 2 Before Use Be sure to disconnect the mains cord before adjusting the voltage selector. Use a minus (-) screwdriver to set the voltage selector (on the rear panel) to the voltage setting for the area in which the unit will be used. (If the power supply in your area is 117V or 120V, set to the “127V”...

  • Page 5: Connection Of The Speaker Cables

    SB-WA880GC / SB-WA880GCT 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. 1.

  • Page 6: Disassembly Procedure

    SB-WA880GC / SB-WA880GCT 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. 2.
  • Page 7 SB-WA880GC / SB-WA880GCT 7.1.2. Disassembly of Rear Assembly...

  • Page 8: Disassembly Of The Speaker Unit And Checking Of The

    SB-WA880GC / SB-WA880GCT 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 to slightly lift up the Front Panel Step 1: Slot in a steel ruler to give a gap between the Front Unit as arrow shown.
  • Page 9 SB-WA880GC / SB-WA880GCT · Assembly of the Front Panel Unit. Step 1: Remove 4 screws. Step 1: Clean up the remaining glue at the 6 bosses points and replace with the normal glue. Step 2: Remove the Woofer 1 by detaching the (+) red and (-) Step 2: Replace the Front Panel Unit firmly back to the black wires.
  • Page 10 SB-WA880GC / SB-WA880GCT 7.2.4. Disassembly of the Power Amp Unit Step 1: Remove 4 screws. Step 1: Lay the speaker unit as shown. Remove 6 screws from the bottom of the woofer unit. Step 2: Remove the Woofer 2 by detaching the (+) red and (-) black wires.
  • Page 11 SB-WA880GC / SB-WA880GCT 7.2.5. Disassembly of the Rear Panel and Fan Unit Follow Step (1) to Step (5) described in section 7.2.4. Step 3: Pull out the Power Amp Unit slightly as arrow shown. Step 1 & 2: Remove 8 screws from the rear panel. Step 4: Disconnect connector (CN506).
  • Page 12 SB-WA880GC / SB-WA880GCT Step 4: Disconnect the connector (CN507) to detach the rear arrow shown. panel. Step 2: Disconnect the connector (CN502). Step 3: Lift up the AC Inlet P.C.B. as arrow shown. Step 5: Remove 4 screws from the rear panel. Step 4 &...
  • Page 13 SB-WA880GC / SB-WA880GCT Step 2: Remove 2 screws and Power IC501. Step 3: Remove the screw and Transistor holder. Step 7: Flip the Power P.C.B. as shown for checking both Power P.C.B. and Transformer P.C.B.. 7.2.7. Replacement of Power IC and Step 4: Detach the Power IC and Transistor from Heat sink.

  • Page 14: Block Diagram

    SB-WA880GC / SB-WA880GCT 8 Block Diagram IC501 RSN311W64D-P POWER HIC POWER CONTROL CIRCUIT POWER CONTROL/PROTECTION CIRCUIT 12(11) (25) (19) D501 D502 Q506 INTERFACE TO MAIN SWITCH BLOCK (JK2000) OF Q505 SA-HT880GC/GS/ GCT/GCS-S SWITCHING SL(R)/SURRL(R) FILTER JK501(JK502) SURROUND SPEAKER CCH/CENTRE FILTER JK502 CENTRE SPEAKER...

  • Page 15: Notes Of Schematic Diagram

    SB-WA880GC / SB-WA880GCT 9 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 16: Schematic Diagram

    SB-WA880GC / SB-WA880GCT 10 Schematic Diagram 10.1. Power Circuit SCHEMATIC DIAGRAM-1 : MAIN SIGNAL LINE : -B SIGNAL LINE POWER CIRCUIT : +B SIGNAL LINE C551 0.01 IC501 IC501 RSN311W64D-P POWER HIC E501 K4CZ01000027 R501 R513 4.7K R502 C507 18P 4.7K R514 C508 18P...
  • Page 17 SB-WA880GC / SB-WA880GCT SCHEMATIC DIAGRAM-2 : MAIN SIGNAL LINE : -B SIGNAL LINE POWER CIRCUIT : +B SIGNAL LINE JK501 SRLch FRch FLch C519 C518 0.047 0.047 R534 R533 JK502 SRRch CENTER C569 0.047 C520 C523 C521 C522 0.047 0.047 0.047 0.047 SUB WOOFFER...

  • Page 18: Transformer Circuit And Ac Inlet Circuit

    SB-WA880GC / SB-WA880GCT 10.2. Transformer Circuit and AC Inlet Circuit SCHEMATIC DIAGRAM-3 : -B SIGNAL LINE : +B SIGNAL LINE Q518 B1AAGC000007 VOLTAGE REGULATOR C581 R588 820K 1000P C555 R589 35V4.7 Q516 R578 B1GACFJJ0018 SYNC SWITCH CN502 HELP D530 R580 B0EAKM000122 D529 PCONT...

  • Page 19: Printed Circuit Board

    SB-WA880GC / SB-WA880GCT 11 Printed Circuit Board 11.1. Power P.C.B. POWER P.C.B (REPX0480A)...GC (REPX0480B)...GCT CN501 J539 J570 J528 CP502 C550 E500 TO MAIN UNIT D508 J567 R583 J504 J533 C576 D504 C577 R606 Q506 Q505 J512 D558 R521 R522 R581 J521 JK502 C532...
  • Page 20 SB-WA880GC / SB-WA880GCT D562 Q557 Q556 Q552 D508 J567 R583 C570 C580 J504 CN503 J533 C576 J586 R606 R582 Q555 Q554 Q505 Q506 Q501 D560 R558 Q502 D555 D558 Q553 D557 J587 Q520 R564 R402 R581 J544 D599 J588 J543 J578 J553 D598...

  • Page 21: Ac Inlet P.c.b., Transformer P.c.b. And Voltage Selector

    SB-WA880GC / SB-WA880GCT 11.2. AC Inlet P.C.B., Transformer P.C.B. and Voltage Selector P.C.B. AC INLET P.C.B (REPX0480A)...GC (REPX0480B)...GCT (BLU) (BRW) T3.15AL 250V FC501 FC502 T502 (SUB-TRANSFORMER) Q517 JK500 Q516 J6001 J900 AC IN RLY501 C555 R589 110V R578 J6002 Q519 C557 /127V /220-230V/...

  • Page 22: Wiring Connection Diagram

    SB-WA880GC / SB-WA880GCT 12 Wiring Connection Diagram CN501 POWER P.C.B. 7..1 TO MAIN UNIT CP502 CN503 CENTER SPEAKER JK502 SURROUND RIGHT SPEAKER SURROUND LEFT SPEAKER FRONT RIGHT JK501 SPEAKER FRONT LEFT CN506 CN507 SPEAKER SPEAKER WOOFER SOLDER SIDE H503/...

  • Page 23: Illustration Of Ics, Transistors And Diodes

    SB-WA880GC / SB-WA880GCT 13 Illustration of ICs, Transistors and Diodes RSN311W64D-P B1GCCFJJ0016 B1ACCF000094 B1AACF000117 B1BACG000048 B1BCCG000023 2SD0592ARA B1AAGC000007 B1GACFJJ0018 B0BA5R100013 B0BA5R600016 Cathode Anode B0JAPG000019 B0FBAM000009 B0BA01900005 B0AACK000004 MA2C700A0F B0BA01100004 B0EAKM000117 B0BA7R000005 Cathode Cathode Anode Anode B0EAKM000122 Cathode Anode...

  • Page 24: Parts Location And Replacement Parts List

    SB-WA880GC / SB-WA880GCT 14 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. When replacing any of these components, be sure to use only manufacturer’s specified parts shown in the parts list.

  • Page 25: Cabinet

    SB-WA880GC / SB-WA880GCT 14.1. Cabinet 14.1.1. Cabinet Parts Location...
  • Page 26 SB-WA880GC / SB-WA880GCT...
  • Page 27 SB-WA880GC / SB-WA880GCT 14.1.2. Cabinet Parts List Ref. Part No. Part Name & Description Remarks CABINET AND CHASSIS RFKHBWA730PP SUB WOOFER CAB ASS’Y XTB3+12GFJ SCREW B3AAA0000583 LED (RED) RGKX0284-H XTB4+12AFJ WOOD SCREW (TBZP) RKAX0019-KJ LEG CUSHION RYQX0167A-S FRONT PANEL UNIT RMQX0106 EVA PACKING FOR WOOFER RGNX0271D-S...

  • Page 28: Electrical Parts List

    SB-WA880GC / SB-WA880GCT 14.2. Electrical Parts List Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks CN501 K1FB125B0095 SYSTEM CONNECTOR CN502 K1KB07B00020 7P CONNECTOR PRINTED CIRCUIT BOARD CN503 K1KA15AA0319 15P PLUG IN CN506 K1KA04A00105 LEAF SW 4P POST REPX0480A...
  • Page 29 SB-WA880GC / SB-WA880GCT Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks R501 ERDS2TJ472T 4.7K 1/4W R606 ERG2SJ220E 22 2W R502 ERDS2TJ472T 4.7K 1/4W R609 ERDS1FVJ152T 1.5K 1/2W R503 ERDS2TJ153T 15K 1/4W R610 ERD2FCVJ4R7T 4.7 1/4W R504...

  • Page 30: Packing Materials & Accessories Parts List

    SB-WA880GC / SB-WA880GCT 14.3. Packing Materials & Accessories Parts List Ref. Part No. Part Name & Description Remarks PACKING MATERIALS RPNX0317 POLYFOAM RPFX0071 MIRAMAT BAG...

  • Page 31: Packaging

    SB-WA880GC / SB-WA880GCT 15 Packaging FLE0504/A/S/E/N/J/P...

This manual is also suitable for:

Sb-wa880gcSb-wa880gct

Table of Contents