Panasonic SB-WA730GCP, Service Manual

Page 1: ... 3 1 1 GENERAL GUIDELINES 3 2 Before Use 4 2005 Matsushita Electric Industrial Co Ltd All rights reserved Unauthorized copying and distribution is a violation of law SB WA730GCP Colour S Silver Type Note Specifications are subject to change without notice Mass and dimensions are approximate n System SC HT730 GCP Music Center SA HT730 GCP Satellite Speakers SB HT730 P Active Subwoofer SB WA730 GCP ...

Page 2: ...16 10 Notes of Schematic Diagram 17 11 Schematic Diagram 18 11 1 Power Circuit 18 11 2 Transformer Circuit AC Inlet Circuit and Voltage Selector Circuit 20 12 Printed Circuit Board 21 12 1 Power P C B 21 12 2 AC Inlet P C B Transformer P C B and Voltage Selector P C B 23 13 Wiring Connection Diagram 24 14 Illustration of IC 痴 Transistors and Diodes 25 15 Parts Location and Replacement Parts List 2...

Page 3: ...not have a return path to the chassis the reading must be Fig 1 1 1 2 LEAKAGE CURRENT HOT CHECK See Figure 1 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...

Page 4: ...he power is turned on 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 If this occurs follow the procedure outlines below 1 Turn off the power 2 Determine the cause of the prob...

Page 5: ... 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 Strip off the outer covering and twist the center conductor Make sure the bare ends of the wires are not unravelled If they are twist them tight again 2 Insert the wire to the rear panel of the unit and close the lever 5 SB WA730GCP ...

Page 6: ...hecks or replacement reverse the respective procedures Special reassembly procedures are described only when required 3 Select items from the following index when checks or replacement are required Disassembly of the Front Panel Unit Disassembly of the Woofer 1 Disassembly of the Woofer 2 Disassembly of the Power Amp Unit Disassembly of the Rear Panel and Fan Unit Disassembly and checking of the A...

Page 7: ...dure for disassembling the casing and inside parts for internal inspection when carrying out the servicing To assemble the unit reverse the steps shown in the chart below 7 1 1 Disassembly of Front Panel Assembly 7 1 2 Disassembly of Rear Assembly 7 SB WA730GCP ...

Page 8: ... wood chip in between the Front Panel Unit and the steel ruler as arrow shown Step 3 Use the screwdriver to slightly lift up the Front Panel Unit as arrow shown Note Be careful with the bosses which are glued to the Subwoofer Cabinet Assembly Step 4 Remove the Front Panel Unit from the Subwoofer Cabinet Assembly 7 2 Disassembly of the Speaker Unit and Checking of the P C B 8 SB WA730GCP ...

Page 9: ...e normal glue Step 2 Replace the Front Panel Unit firmly back to the cabinet 7 2 2 Disassembly of the Woofer 1 Follow Step 1 to Step 4 described in section 7 2 1 Step 1 Remove 4 screws from the Woofer 1 Step 2 Remove the Woofer 1 by detaching the and wires 7 2 3 Disassembly of the Woofer 2 9 SB WA730GCP ...

Page 10: ...e and wires 7 2 4 Disassembly of the Power Amp Unit Step 1 Lay the speaker unit as shown Remove 6 screws from the bottom of the woofer unit Step 2 Remove 3 screws from the rear panel Step 3 Pull out the Power Amp Unit slightly as shown Step 4 Disconnect connector CN506 10 SB WA730GCP ...

Page 11: ...described in section 7 2 4 Step 1 2 Remove 8 screws from the rear panel Step 3 Disconnect the Voltage Selector from the rear panel Step 4 Disconnect the connector CN507 to detach the rear panel Step 5 Remove 4 screws from the rear panel Step 6 Lay the rear panel and remove the Fan Unit as arrow shown 11 SB WA730GCP ...

Page 12: ...t by pushing the claws as arrow shown Step 2 Disconnect the connector CN502 Step 3 Lift up the AC Inlet P C B as arrow shown Step 4 5 Remove 8 screws Step 6 Remove 4 screws Step 7 Connect back the connector CP502 between Power and AC Inlet P C B for checking 7 2 7 Replacement of Power IC and Transistor Follow Step 1 to Step 5 described in section 7 2 4 Follow Step 1 to Step 4 described in section ...

Page 13: ... 1 Desolder the Power IC and Transistor terminal Step 2 Remove 2 screws and Power IC501 Step 3 Remove the screw and Transistor holder Step 4 Detach the Power IC and Transistor from Heat sink 13 SB WA730GCP ...

Page 14: ...DBY 0 6 0 0 0 2 9 1 1 6 0 11 6 6 6 0 0 0 Ref No MODE 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 CD PLAY 0 0 60 7 60 5 0 29 6 29 5 0 0 0 0 0 0 0 2 30 0 30 0 10 5 0 0 60 9 STANDBY 0 0 13 1 0 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 13 0 Ref No MODE 21 22 23 24 25 26 CD PLAY 60 8 0 0 0 0 0 STANDBY 0 3 0 0 0 0 0 Ref No MODE E C B E C B 1 2 3 E C B E C B CD PLAY 0 5 0 0 0 5 0 0 0 0 1 2 0 0 0 8 0 0 8 0 0...

Page 15: ... 5 32Vp p 10msec div CN501 PIN 22 CD PLAY 6 76Vp p 10msec div CN501 PIN 24 CD PLAY 6 60Vp p 10msec div CN503 PIN 1 CD PLAY 124Vp p 10msec div CN503 PIN 3 CD PLAY 62 4Vp p 10msec div CN503 PIN 7 CD PLAY 62 4Vp p 10msec div CN503 PIN 9 CD PLAY 123Vp p 10msec div CN501 PIN 8 CD PLAY 1 20Vp p 10msec div 15 SB WA730GCP ...

Page 16: ...1 Z501 Q501 Q502 SWITCH DC_DET Q520 INTERFACE SWITCH Q511 HP_CNT MUTE_H Q515 Q519 DCDET SWITCH VOLTAGE REGULATOR D597 D598 D599 T501 T502 D508 AC2 5 SUBAC2 AC1 4 SUBAC1 TO MAIN BLOCK JK2000 OF SA HT730GCP S FL1 FL2 B B B Q512 VOLTAGE REGULATOR D527 D530 Q518 VOLTAGE REGULATOR POWER HIC SIGNAL LINES IC501 RSN311W64D P JK500 AC INLET RLY501 POWER TRANSFORMER SUB TRANSFORMER JK502 CENTRE SPEAKER SUBW...

Page 17: ...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 components be sure to use only manufacturer s specified parts shown in the parts list Caution IC LSI and VLSI are sensitive to static electricity Secondary trouble can be prevented by...

Page 18: ... C534 50V33 R548 330K R545 220K Q506 B1GCCFJJ0015 INTERFACE SWITCH Q505 B1AACF000089 SWITCHING Q501 Q502 B1AACF000089 SWITCH Q503 B1AACF000089 SWITCH IC501 RSN311W64D P POWER HIC C551 0 01 R525 150K D558 D559 B0AACK000004 D555 B0AACK000004 D562 B0AACK000004 R504 15K 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 2 4 6 8 9 7 5 3 1 SCHEMATIC DIAGRAM 1 POWER CIRCUIT B SIGNAL LINE MAIN SIGNAL LINE B ...

Page 19: ...C520 0 047 C521 0 047 C522 0 047 C523 0 047 C569 0 047 R535 10 R536 10 R537 10 R538 10 FP1 K5G502AA0002 R609 1 5K D561 B0BA01100004 C572 50V100 R560 150 C573 1000P R561 3 9K D509 SRLch FRch FLch PCONT D GND SYNC SYS6V HELP R571 1 8K 3 1 2 4 2 4 6 7 5 3 1 3 1 2 4 TO AC INLET CIRCUIT CN502 ON SCHEMATIC DIAGRAM 3 SCHEMATIC DIAGRAM 2 POWER CIRCUIT B SIGNAL LINE MAIN SIGNAL LINE B SIGNAL LINE 1 2 3 4 5...

Page 20: ...525 B0BA7R000005 D530 T502 G4C2AAJ00005 C571 25V1000 D530 B0EAKM000122 D529 MA2C700ADF C581 1000P Q518 B1AAGC000007 VOLTAGE REGULATOR D534 B0AACK000004 WHT W9 ORG W10 GRY W3 YEL W4 RED W5 VIO W6 LBLU W7 BLK W8 W8 W7 W6 W5 W9 W10 W3 W4 PCONT D GND SYNC SYS6V HELP WHT ORG GRY YEL BLK LBLU VIO RED T501 G4C8AHK00005 F2 250V 2A FC503 FC504 2 4 6 7 5 3 1 1 2 3 4 5 6 7 8 110 220 240 127 110 220 127 240 S...

Page 21: ...J511 J537 J574 J575 J596 J595 J594 J593 J538 J577 J532 J598 J591 J592 J512 J568 J521 J534 J571 J572 J570 J528 J539 J573 J536 J597 J410 R535 R565 R583 R581 R536 C550 C522 C532 C531 C530 C533 C519 C520 C518 C521 C569 R606 R538 R530 R531 R533 R534 R537 Q55 D502 CN507 E500 CN501 IC501 C576 JK501 JK502 J626 J501 J502 D501 C513 C CP502 R577 J627 J581 CN506 C523 J623 J414 J621 J625 J622 1 2 1 3 25 24 23 ...

Page 22: ...66 D565 J543 J588 J506 J579 J565 J576 J511 J532 J564 J510 J598 7 J541 J559 J516 J585 J558 J583 J584 J586 J587 J544 J530 J520 J549 J552 J542 J578 J569 J566 J535 R565 R582 R583 R581 R584 R603 R402 R558 D562 D557 D560 D556 D555 D509 C554 Q555 Q557 C574 C579 C575 Q554 Q553 C578 Q511 Q512 C573 FP1 5A R563 R606 R561 R610 R609 R569 Q556 D510 D502 C546 D599 D598 D597 CN503 C580 C514 C560 C516 C515 C570 C6...

Page 23: ...G W5 RED W8 BLK Z501 RLY501 CN502 JK500 J6010 J6007 J6008 R401 J6006 J6005 D500 R579 J6009 R580 C559 D528 R590 Q519 Q515 Q516 D527 R589 R578 C555 C557 Q517 C571 D525 R587 C556 T502 SUB TRANSFORMER R588 J6001 J6002 J6003 J6004 FC502 FC501 W1 BRW W2 BLU Q518 C581 D530 D529 D534 J900 J901 W2 BLU W1 BRW W5 RED W9 WHT W10 ORG W3 GRY W4 YEL W6 VIO W7 LBLU W8 BLK FC504 FC503 H503 W503 T501 POWER TRANSFOR...

Page 24: ... FRONT LEFT SPEAKER SURROUND LEFT SPEAKER POWER P C B AC INLET P C B TRANSFORMER P C B SPEAKER WOOFER 25 1 24 2 CN501 JK502 JK501 2 1 1 2 3 CN506 CN507 7 1 CP502 CN503 4 2 3 1 6 2 5 1 4 FAN VOLTAGE SELECTOR P C B D W4 YEL W9 WHT W6 VIO W7 LBLU W3 GRY W10 ORG W5 RED W8 BLK PbF PbF SOLDER SIDE PbF PbF W2 BLU W1 BRW W2 BLU W1 BRW W9 WHT W5 RED W10 ORG W3 GRY W4 YEL W6 VIO W7 LBLU W8 BLK T501 S500 SB ...

Page 25: ...F A Ca Anode Cathode B0BA5R100013 B0BA6R600008 A Ca Cathode Anode B0JAPG000019 B0EAKM000117 Anode Cathode A Ca B0BA01900005 B0BA7R000005 B0AACK000004 2SD0592ARA E C B B1BCCG000021 B1BACG000036 B C E B0BA5R600016 B0BA01100004 RSN311W64D P 1 26 B0EAKM000122 Cathode A Ca Anode B0FBAM000009 E B C B1AAGC000007 25 SB WA730GCP ...

Page 26: ...olour Parts without these indications can be used for all areas Capacitor values are in microfarads µF unless specified otherwise P Pico farads pF F Farads Resistance values are in ohms unless specified otherwise 1K 1 000 OHM The marking RTL indicates that the Retention Time is limited for this items After the discontinuation of this assembly in production the item will continue to be available fo...

Page 27: ...15 1 Cabinet 15 1 1 Cabinet Parts Location 27 SB WA730GCP ...

Page 28: ...28 SB WA730GCP ...

Page 29: ...6 EVA PACKING FOR WOOFER M 5 RGNX0273B S SPEC LABEL M 6 XTS4 16JFJ SCREW TBZP M 7 REM0072 4 FAN M 8 RGRX0040B H REAR PANEL M 9 RHD30065 1S SCREW TBZP M 10 RHD30090 1 SCREW M 11 RHD30119 SCREW M 12 RMC0158 S2 TR FIXTURE M 13 RMG0606 K FAN INSULATOR M 14 RMN0203 PCB HOLDER M 15 XTB3 10JFJ SCREW M 16 XTB3 16AFJ SCREW TBZP M 17 XTB4 10GFJ SCREW TBZP M 18 XTW3 15TFJ SCREW TBZP M 19 RGPX0174 WOOFER SPAC...

Page 30: ... DIODE M D565 B0BA01900005 DIODE M D566 B0BA01900005 DIODE M D597 B0FBAM000009 DIODE M D598 B0FBAM000009 DIODE M D599 B0FBAM000009 DIODE M SWITCHE S500 K0AFZA000005 VOLTAGE SELECTOR M CONNECTORS CN501 K1FB125B0095 SYSTEM CONNECTOR M CN502 K1KB07B00020 7P CONNECTOR M Ref No Part No Part Name Description Remarks CN503 K1KA15A00159 15P CONNECTOR M CN506 K1KA04A00105 4P CONNECTOR M CN507 K1KA02A00008 ...

Page 31: ... ERDS2TJ103T 10K 1 4W M R604 ERDS2TJ225T 2 2M 1 4W M R606 ERG2SJ220E 22 2W M R609 ERDS1FVJ152T 1 5K 1 2W M R610 ERD2FCVJ4R7T 4 7 1 4W M CAPACITORS C501 ECBT1H102KB5 1000P 50V M C502 ECBT1H102KB5 1000P 50V M C503 ECBT1H102KB5 1000P 50V M C504 ECBT1H102KB5 1000P 50V M C505 ECBT1H102KB5 1000P 50V M C506 ECBT1H102KB5 1000P 50V M C507 ECBT1H180JC5 18P 50V M Ref No Part No Part Name Description Remarks ...

Page 32: ...scription Remarks PACKING MATERIALS Ref No Part No Part Name Description Remarks P1 RPNX0295 POLYFOAM ASW M P2 RPFX0071 MIRAMAT BAG M 15 3 Packing Materials Accessories Parts List 15 4 Packaging 32 SB WA730GCP FLE0503 P A S E N J ...