Panasonic SB-WA920PP, Service Manual

Page 1: ...ORDER NO MD0403057C1 A6 Active Subwoofer System SB WA920PP Colour S Silver Type SPECIFICATIONS Specification 1 ...

Page 2: ...ations are subject to change without notice Mass and dimensions are approximate SB HT920P S consists of SB PF920P S x 2 SB PS920P S x 2 and SB PC920P S x 1 System SC HT920 P Music Center SA HT920 P Satellite Speakers SB HT920 P Active Subwoofer SB WA920 PP System SC HT920 PC Music Center SA HT920 PC Satellite Speakers SB HT920 P Active Subwoofer SB WA920 PP 1 Safety Precautions 1 1 GENERAL GUIDELI...

Page 3: ... be sure to restore the lead dress insulation barriers insulation papers shields etc 5 Before returning the serviced equipment to the customer be sure to make the following insulation resistance test to prevent the customer from being exposed to a shock hazard 1 1 1 LEAKAGE CURRENT COLD CHECK 1 Unplug the AC cord and connect a jumper between the two prongs on the plug 2 Measure the resistance valu...

Page 4: ...case a measurement is outside of 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 2 Handling the Lead free Solder 2 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...

Page 5: ...e 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 problem and correct it 3 Turn on the power once again after one minute Note When the protection circuitry functions the unit will not operate unless the power is first turned off and then on again 5 Connection of the Speaker Cables Be sure to co...

Page 6: ...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 For reassembly after operation checks or replacement reverse the respective procedures Special reassembly procedures are described only when required 3 Select items from the followi...

Page 7: ...embly flow chart The following chart is the procedure 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 6 2 Disassembly of the Speaker Unit and Checking of the P C B 7 ...

Page 8: ... 1 Remove all the screws Step 2 Remove the stand base Steps 3 4 Remove all the screws from the bottom of the speaker unit Step 5 Use the Steel Ruler to slot into the hole of the bottom cabinet of speaker 8 ...

Page 9: ...Chip to slot between the Net Frame and the Steel Ruler as arrow shown Step 7 Use the Screwdriver slightly lift up the Net Frame as arrow shown Step 8 Take note of the bosses which glued to the unit Assembly of Net Frame 9 ...

Page 10: ...Clean up all the glue at the 4 Boss points and replace with the normal glue Replace the Net Frame firmly back into the cabinet Step 9 Remove the Net Frame from the cabinet of speaker 10 ...

Page 11: ...Step 10 Remove all the screws from the subwoofer Step 11 Remove the subwoofer by detaching the 2 wires Step 12 Remove the screws Step 13 Pull out the Power Amp unit slightly as shown 11 ...

Page 12: ...e the connector CN506 then pull out the entire Power Amp unit Step 15 Remove all the screws Step 16 Release the connector CN507 to remove the rear panel Step 17 Remove all the screws Step 18 Remove all the screws 12 ...

Page 13: ...crews Step 20 Detach the connector CN503 and remove the transformer Checking for the Transformer Amplifier and AC Inlet P C B Step 21 Place the Transformer P C B Amplifier P C B and the AC Inlet P C B as shown for checking 13 ...

Page 14: ...ng for the Power and CD Open P C B Step 23 Place the Power P C B and the CD Open P C B as shown for checking 6 3 Main Component Replacement Procedures 6 3 1 Replacement of the Power ICs and Transistors Step 1 Desolder the Power IC and Transistor terminals 14 ...

Page 15: ...Steps 2 3 Remove the screws Step 4 Replacement of the Power IC601 and Transistors Q601 Q602 Steps 5 Desolder the Power IC and Transistor terminals Steps 6 7 Remove the screws 15 ...

Page 16: ... voltage values and waveforms depending upon the internal impedance of the tester or the measuring unit Importance 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 components be sure to use only m...

Page 17: ...ve 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 The parenthesized indications in the Remarks columns specify the areas or colour Refer to the cover p...

Page 18: ...sembly in production the item will continue to be available for a specific period of time The retention period of a availability is dependent on the type of assembly and in accordance with the laws governing part and product retention After the end of this period the assembly will no longer be available M Markings in the Remarks columns indicates parts supplied by PAVCSG 13 1 Cabinet 13 1 1 Cabine...

Page 19: ...13 1 2 Cabinet Parts List 19 ...

Page 20: ... M 18 XTBS3 8JFZ1 SCREW M 19 XTS4 20JFZ SCREW M 20 XTW3 15T SCREW M 21 XYC26 CJ6FZ SCREW M 22 XTB4 16AFZ SCREW M 13 2 Electrical Parts List Ref No Part No Part Name Description Remarks PRINTED CIRCUIT BOARD REPX0436A POWER P C B AC INLET P C B TRANSFORMER P C B LED P C B M RTL REPX0435A AMPLIFIER P C B SPEAKER INTERFACE P C B M RTL INTEGRATED CIRCUITS IC501 RSN311W64B P IC HIC M IC502 C0AABB000055...

Page 21: ... DIODE M D510 B0BA5R700008 DIODE M D524 SLI325URCT31 DIODE M D525 B0BA6R600008 DIODE M D528 B0EAKM000122 DIODE M D533 B0BA5R100013 DIODE M D555 B0AACK000004 DIODE M D556 B0BA01100004 DIODE M D557 B0EAKM000117 DIODE M D558 B0AACK000004 DIODE M D559 B0AACK000004 DIODE M D560 B0AACK000004 DIODE M D561 B0BA01100004 DIODE M D562 B0AACK000004 DIODE M D563 B0BA01900005 DIODE M D564 B0BA01900005 DIODE M D...

Page 22: ...ECTOR M COILS TRANSFORMERS L500 RLQZ371 LINE FILTER M T501 G4C8AHD00001 POWER TRANSFORMER M T502 ETP28KBZA1PU BACK UP TRANSFORMER M COMPONENT COMBINATION Z501 ERZV10V511CS ZENER M SPEAKER SP1 L0AA20A00004 WOOFER M RELAY RLY501 RSY0040M 0 PRIMARY RELAY M FUSE F1 K5D602AQ0002 FUSE M FUSE HOLDERS FC501 EYF52BC FUSE HOLDER M FC502 EYF52BC FUSE HOLDER M FUSE PROTECTOR FP1 K5G502AA0002 5A FUSE PROTECTOR...

Page 23: ...H601 K1YF10000006 10P WIRE HOLDER M 23 ...

Page 24: ... STRAND TYPE WIRE M W605 REEX0424 3P STRAND TYPE WIRE M RESISTORS R401 ERDS2TJ224T 220K 1 4W M R402 ERDS2TJ102T 1K 1 4W M R403 ERDS2TJ104T 100K 1 4W M R500 ERC12UGK335D 3 3M 1 2W M R501 ERDS2TJ472T 4 7K 1 4W M R502 ERDS2TJ472T 4 7K 1 4W M R505 ERDS2TJ153T 15K 1 4W M R506 ERDS2TJ153T 15K 1 4W M R509 ERDS2TJ472T 4 7K 1 4W M R510 ERDS2TJ472T 4 7K 1 4W M R511 ERDS2TJ153T 15K 1 4W M R512 ERDS2TJ153T 15...

Page 25: ...R529 ERDS2TJ223T 22K 1 4W M 25 ...

Page 26: ...W M R561 ERDS1FVJ392T 3 9K 1 2W M R562 ERDS2TJ472T 4 7K 1 4W M R563 ERDS1FVJ102T 1K 1 2W M R564 ERDS2TJ224T 220K 1 4W M R565 ERDS1FVJ392T 3 9K 1 2W M R566 ERG2SJ220E 22 2W M R567 ERDS1FVJ152T 1 5K 1 2W M R568 ERDS2TJ151T 150 1 4W M R569 ERDS1FVJ392T 3 9K 1 2W M R570 ERDS2TJ103T 10K 1 4W M R571 ERDS2TJ332T 3 3K 1 4W M R572 ERDS2TJ223T 22K 1 4W M R573 D0XGR10JA005 0 1 1 10W M R575 ERDS2TJ682T 6 8K 1...

Page 27: ...K 1 4W M R617 ERDS2TJ822T 8 2K 1 4W M R618 ERDS2TJ473T 47K 1 4W M R619 ERDS2TJ563T 56K 1 4W M R620 ERDS2TJ563T 56K 1 4W M R621 ERDS2TJ273T 27K 1 4W M R622 ERDS2TJ103T 10K 1 4W M R623 ERDS2TJ392T 3 9K 1 4W M R624 ERDS2TJ392T 3 9K 1 4W M R625 ERDS2TJ153T 15K 1 4W M R626 ERDS2TJ153T 15K 1 4W M R627 ERDS2TJ124T 120K 1 4W M R628 ERDS2TJ154T 150K 1 4W M R631 ERDS1FVJ100T 10 1 2W M R632 ERDS1FVJ100T 10 1...

Page 28: ...04KF3 0 1 100V M C555 ECEA1VKA4R7B 4 7 35V M C556 ECBT1H103KB5 0 01 50V M C557 ECEA1AKA470B 47 10V M C559 ECBT1H103KB5 0 01 50V M C560 ECA1HM100B 10 50V M C561 ECEA1HKA2R2B 2 2 50V M C562 ECQB1H103JF3 0 01 50V M C563 ECQV1H154JL3 0 15 50V M C564 ECBT1C122KR5 1200P 16V M C565 F1D1H1040002 0 1 50V M C566 F1D1H1040002 0 1 50V M C567 ECA1HM100B 10 50V M C568 ECBT1C103NS5 0 01 16V M C569 F1D1H473A012 0...

Page 29: ...50V M C612 ECBT1H102KB5 1000P 50V M C613 ECKR1H103ZF5 0 01 50V M C614 ECKR1H103ZF5 0 01 50V M C615 F1D1H473A012 0 047 50V M C616 F1D1H473A012 0 047 50V M C619 F1D1H473A012 0 047 50V M C647 ECA0JM471B 470 6 3V M 13 3 Packing Materials Accessories Parts List Ref No Part No Part Name Description Remarks PACKING MATERIALS P1 RPNX0248 POLYFOAM M P2 RPFX0087 MIRAMAT BAG M 13 4 Packaging 29 ...

Page 30: ...FLE0403 P A S E N 30 ...

Page 31: ... C564 R592 R597 R573 R594 R595 R593 E500 J504 R591 C561 C566 C565 J550 C568 R599 R571 R572 Q513 Q514 J517 R596 IC502 JK501 J514 J552 J570 J409 R403 CN507 C529 R565 R519 R581 C576 R5 D558 D559 R583 Q556 D56 C647 C577 D55 J506 R566 R607 R605 R606 R521 R522 J606 J608 R611 J607 J60 J613 J539 C518 TO MAIN UNIT B C E B C E Q506 B C E B C E B C E A B C D E F G 1 2 3 4 5 6 7 8 9 POWER P C B REPX0436A SURR...

Page 32: ...84 R603 Q557 D560 C647 Q554 C574 D557 D556 R564 Q553 R563 R562 R602 D555 C570 R604 C579 Q552 R559 C578 D562 J559 Q512 C573 R560 R561 C572 D561 J555 R558 J520 J587 J588 R600 D563 D564 J549 J530 J556 J554 J553 J543 J557 J560 J578 J542 J580 J569 J558 R601 D565 D566 J584 J586 C580 FP1 5A R608 J566 J516 R609 R610 J509 CN601 J601 J602 J603 J605 CN602 D598 D597 D599 J609 C560 PbF B C E B C E B C E 1 2 3 ...

Page 33: ...577 H505A W505 PbF B C E B C E F1 125V 6A T502 SUB TRANSFORMER RLY501 1 2 4 3 3 4 1 5 2 4 3 2 1 120V 60HZ AC IN Z501 PbF A B C D E F G 1 2 3 4 5 6 7 8 9 CAUTION RISK OF ELECTRIC SHOCK TOUCH THIS P C B AC VOLTAGE LINE PLEASE DO NOT AC INLET P C B REPX0436A LED P C B REPX0436A TRANSFORMER P C B REPX0436A BRW W1 W2 BLU H503 W500 PbF T501 POWER TRANSFORMER SECONDARY PRIMARY 3 2 1 1 2 3 4 5 6 7 1 8 7 6...

Page 34: ...7 R580 C555 R589 Q516 R578 C557 R587 D525 Q517 C571 D528 C559 R579 Q515 D500 C500 J522 J523 Q519 R590 J529 C556 R588 J524 H505A W505 B C E B C E B C E B C E R RLY501 1 2 4 3 Z501 W2A BLU W1A BRW RIC SHOCK C B NE PLEASE DO NOT ED P C B REPX0436A 3 2 1 ...

Page 35: ...555 B0AACK000004 D562 B0AACK000004 CN602 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 2 1 1 2 3 4 6 8 7 5 TO AMPILIFER CIRCUIT H602 W602 ON SCHEMATIC DIAGRAM 4 FAN_DRV L_in GND R_in ACIN HMUTE DCDET GND IC501 FLin IN GND FRin SUBin Cin VD VD SLin SRin RELAY Di SENS Di SENS IH DET DISP HMUT SR_O SL_O GND AC IN C_O VCC LOW VCC LOW SUB_O VCC HI VCC HI FR_O FL_O 26 25 24 23 22 21 ...

Page 36: ...10 C567 50V10 R598 1 5K R567 1 5K C522 0 047 C523 0 047 C569 0 047 R537 10 R538 10 DGND SYNC SYS6V HELP Q514 H505A W505 D524 SLI325URCT31 R577 1 5K R608 1 5K R609 1 5K D561 B0BA01100004 C572 50V100 R560 150 C573 1000P R561 3 9K D509 CN601 2 4 6 7 5 3 1 2 1 3 2 1 3 IC502 C0AABB000055 DUAL LOW NOISE OP AMP 1 2 3 4 5 6 7 8 MAIN SIGNAL LINE B SIGNAL LINE LED CIRCUIT TO AC INLET CIRCUIT CN502 ON SCHEMA...

Page 37: ...TC3199GRTA DC DET SWITCH JK500 W1 W2 R401 220K R590 1K Q515 Q519 KTC3199GRTA DCDET SWITCH D528 B0EAKM000122 D525 B0BA6R600008 T501 G4C8AHD00001 R500 3 3M T502 ETP28KBZA1PU H503 W500 2 4 6 7 5 3 1 SCHEMATIC DIAGRAM 3 TRANSFORMER CIRCUIT B SIGNAL LINE B SIGNAL LINE TO POWER CIRCUIT CP502 ON SCHEMATIC DIAGRAM 2 AC INLET CIRCUIT R588 150 TO POWER CIRCUIT CN503 ON SCHEMATIC DIAGRAM 2 D528 RLY501 RSY004...

Page 38: ...0008 D608 D610 B0BA01400009 Q601 B1BACG000009 VOLTAGE REGULATOR C603 100V4700 C604 100V3300 R611 4 7 C601 100V3300 C602 100V4700 C605 0 1 C606 0 1 C613 0 01 C614 0 01 R614 2 7K VCCHI VCCLO GND VCCLO VCCHI Q603 2SD1859QRTV2 VOLTAGE REGULATOR D606 B0BA01200008 D607 B0BA02300017 D609 D611 B0BA01900005 TO POWER CIRCUIT CN601 ON SCHEMATIC DIAGRAM 2 Q602 B1BCCG000021 VOLTAGE REGULATOR R612 4 7 R634 47K ...

Page 39: ...1 H602 W602 H601 W601 CN606 1 3 H603A W603 H605 W605 SURROUND LEFT SPEAKER SURROUND RIGHT SPEAKER SPEAKER INTERFACE P C B F 1 3 4 2 4 1 H603B W603 JK601 PbF BRW BLU 120V 60HZ AC IN 7 1 JK500 T502 SUB TRANSFORMER W2 W1 CN502 BRW W1 W2 BLU TO MAIN UNIT SOLDER SIDE POWER P C B LED P C B AC INLET P C B TRANSFORMER P C B FAN SPEAKER WOOFER 1 2 3 25 1 24 2 CN501 1 2 1 2 3 CN506 CN507 7 1 CP502 CN503 3 2...

Page 40: ...8 SUBAC2 SUBAC1 TO MAIN BLOCK JK2000 OF SA HT920P PC S FL1 FL2 20 21 FLIN R 6 3 FLIN R Q512 VOLTAGE REGULATOR Q601 VOLTAGE REGULATOR D601 Q602 VOLTAGE REGULATOR Q603 VOLTAGE REGULATOR D602 4 VCC LOW VCC LOW 5 D603 D604 26 25 FLIN R 1 2 FL_O R 12 IH DET 11 DISP HMUT 7 AC IN DI SENS DI SENS 13 14 1 VCC HI 18 VD 2 VCC HI 19 VD POWER HIC DUAL LOW NOISE OP AMP RSN312H24 P POWER HIC IC501 RSN311W64B P J...

Page 41: ...900005 C0AABB000055 RSN311W64B P 1 26 1 4 8 5 E C B B1ACCF000063 2SD0592ARA C E B B C E A Ca Anode Cathode B0BA5R100013 B0BA01200008 B0BA5R700008 B0BA02300017 B0BA01100004 B0BA01400009 A Ca Anode Cathode A Ca Cathode Anode B0EAKM000117 Anode Cathode A Ca B0EAKM000122 Cathode A Ca Anode B0FBAM000009 2SD1859QRTV2 1 18 12 RSN312H24 P ...

Page 42: ...88 J678 J629 C615 J675 J616 C616 R632 H603A W603 R631 R627 R628 R633 C619 J689 J644 J696 D608 R634 D611 D610 R635 J620 H605 W605 CN606 J679 D609 J621 R625 R626 R611 J628 J700 J699 H601 W601 H603B W603 JK601 9 8 7 6 5 4 3 2 1 10 8 7 6 5 4 3 2 1 1 2 3 4 1 2 3 4 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 1 2 3 1 2 3 1 2 3 4 E C B B C E E C B 1 2 3 4 1 2 3 4 A B C D E F G 1 2 3 4 5 6 7 8...