Panasonic SB-WA530EB Service Manual

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Summary of Contents:

[Page 1] Panasonic SB-WA530EB

n Active subwoofer Type 1 way, 2 speaker system, Bass reflex Speaker unit(s) 1. Woofer 13 cm Cone type, 4Ω 2. Woofer 13 cm Cone type, 4Ω Output sound pressure level 80 dB/W (1.0 m) Frequency range 40 Hz-220 Hz (-16 dB) 45 Hz-180 Hz (-10 dB) Dimen...

[Page 2] Panasonic SB-WA530EB

7.2. Disassembly of the Speaker Unit and Checking of the P.C.B. 8 8 Voltage Measurement and Waveform Chart 14 8.1. Voltage Measurement 14 8.2. Waveform 14 9 Block Diagram 15 10 Notes of Schematic Diagram 16 11 Schematic Diagram 17 11.1...

[Page 3] Panasonic SB-WA530EB

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 prot...

[Page 4] Panasonic SB-WA530EB

2 Caution for AC Mains Lead 4 SB-WA530EB ...

[Page 5] Panasonic SB-WA530EB

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 sta...

[Page 6] Panasonic SB-WA530EB

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 c...

[Page 7] Panasonic SB-WA530EB

Some chassis components may have sharp edges. Be careful when disassembling and servicing. 7 Disassembly Procedure “ATTENTION SERVICER” 1. This section describes procedures for checking the operation of the major printed circuit boards and repla...

[Page 8] Panasonic SB-WA530EB

7.2.1. Disassembly of the Front Panel Unit Step 1: Slot in a steel ruler to give a gap between the Front Panel Unit and the Subwoofer Cabinet Assembly as arrow shown. Steps 2: Slot a piece of wood chip in between the Front Panel Unit and the steel ru...

[Page 9] Panasonic SB-WA530EB

· Assembly of the Front Panel Unit. Step 1: Clean up all the glue at the 6 Boss points and replace with the normal glue. Step 2: Replace the Front Panel Unit firmly back to the cabinet. 7.2.2. Disassembly of the Woofer Speaker 1 Follow S...

[Page 10] Panasonic SB-WA530EB

Step 1: Remove 4 screws from the Woofer 2. Step 2: Remove the Woofer 2 by detaching the (+) 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: Rem...

[Page 11] Panasonic SB-WA530EB

Step 3: Pull out the Power Amp Unit slightly as shown. Step 4: Disconnect connector CN506. 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 (5) described in section 7.2.4. Step 1 &a...

[Page 12] Panasonic SB-WA530EB

Step 5: Lay the rear panel and remove the Fan Unit as arrow shown. 7.2.6. Disassembly and checking of the AC Inlet P.C.B., Power P.C.B. and Transformer P.C.B. Follow Step (1) to Step (5) described in section 7.2.4. Follow Step (1) to Step (3) describ...

[Page 13] Panasonic SB-WA530EB

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 (3) described in section 7.2.5. Step 1: Desolder the Power IC and Transistor terminal. Step 2: Remove 2 screws and Power IC5...

[Page 14] Panasonic SB-WA530EB

8 Voltage Measurement and Waveform Chart 8.1. Voltage Measurement ERROR: E:\asa\DAND\手配分_A-24_L-6\A4\md0502044c2\wa530eb.pdf 8.2. Waveform CN501 PIN 1 CD PLAY 19.0Vp-p (10msec.div) CN501 PIN 3 CD PLAY 18.8Vp-p (10msec.div) CP501 PIN 21 CD PLAY ...

[Page 15] Panasonic SB-WA530EB

9 Block Diagram FILTER Q506 Q505 Q503 D502 D501 Q516 SYNC PCONT POWER CONTROL CIRCUIT POWER CONTROL/PROTECTION CIRCUIT 26 (25) 22 23 18 (19) 2015 3 6 1 (2) 9 13 14 7 4 21 16 8512(11) 24 SWITCH INTERFACE SWITCH SWITCH SYNC SWITCH - + - + - + - + SL(R)...

[Page 16] Panasonic SB-WA530EB

(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 oscil...

[Page 17] Panasonic SB-WA530EB

11 Schematic Diagram 11.1. Power Circuit R501 4.7K CN501 CN507 D502 D501 Q501 Q502 R546 1K R504 15K D501-D502 B0JAPG000019 E501 K4CZ01000027 Q520 B1GCCFJJ0015 INTERFACE SWITCH IC501 R502 4.7K R506 15K R505 15K R503 15K FLin IN GND FRin SUBin Cin -VD ...

[Page 18] Panasonic SB-WA530EB

CN506 JK501 JK502 CN503 CP502 D564 D566 D563 D565 D510 B0BA5R600016 D509 B0BA5R100013 D563-D566 B0BA01900005 E500 K4CZ01000027 Q511 B1BACG000036 VOLTAGE REGULATOR SUB WOOFFER SRRch CENTER C518 0.047 R533 10 R534 10 C519 0.047 R577 1.5K C533 1000P C53...

[Page 19] Panasonic SB-WA530EB

11.2. Transformer Circuit and AC Inlet Circuit F1 250V 2.0A C555 35V4.7 CN502 H500/W500 FC502 FC501 D500 R589 10K D500 B0AACK000004 Q516 B1GACFJJ0016 SYNC SWITCH PCONT D.GND SYNC SYS6V SUB+B R578 10K R580 22 R587 2.7K C556 0.01 C557 16V22 C558 16V10...

[Page 20] Panasonic SB-WA530EB

12 Printed Circuit Board 12.1. Power P.C.B. ABCDEFG 1 2 3 4 5 6 7 8 9 POWER P.C.B (REPX0473B) A R549 R547 D504 C529 R545 C547 C548 C549 Q506 Q505 D503 R548 C534 J567 J504 J533 J507 J508 D559 D558 D508 J599 J561 J562 J563 R529 R519 J579 J565 J576 J511...

[Page 21] Panasonic SB-WA530EB

GHI J K L M PbF Q502 C544 C547 Q506 Q505 R548 J567 J504 J533 J507 J508 R518 R515 R525 C509 C510 C512 R516 R526 R514 R524 C503 C506 C502 C501 C504 R510 R509 R511 R512 R502 R508 R507 R503 R504 R527 R517 R528 R505 R506 R501 R513 R523 R570 R532 J545 J546...

[Page 22] Panasonic SB-WA530EB

12.2. AC Inlet P.C.B. and Transformer P.C.B. ABCDEFG 1 2 3 4 5 6 7 8 9 AC INLET P.C.B (REPX0473B) B TRANSFORMER P.C.B (REPX0473B) C PbF PbF CAUTION RISK OF ELECTRIC SHOCK AC VOLTAGE LINE. PLEASE DO NOT TOUCH THIS P.C.B Z501 RLY501 CN502 L500 JK500 ...

[Page 23] Panasonic SB-WA530EB

13 Wiring Connection Diagram 12 . . . . . . . . . 1 1 . . . . . . . . . 12 H500/W500 T501(POWER TRANSFORMER) - + SOLDER SIDE PbF PbF SOLDER SIDE SOLDER SIDE PbF BRW BLU 230V-240V 50Hz AC IN 7. . . . . .1 JK500 W2 W1 CN502 W1 W2 TO MAIN UNIT CENTER SP...

[Page 24] Panasonic SB-WA530EB

14 Illustration of ICs, Transistors and Diodes B1GCCFJJ0015 B1GACFJJ0016 B1AACF000089 C E B B E C B1ACCF000063 MA2C700A0F A Ca Anode Cathode B0BA5R100013 B0BA6R600008 A Ca Cathode Anode B0JAPG000019 B0EAKM000117 B0HARM000017 Anode Cathode A Ca B0BA01...

[Page 25] Panasonic SB-WA530EB

Notes: 15 Parts Location and Replacement Parts List · Important safety notice: Components identified by mark have special characteristics important for safety. Furthermore, special parts which have purposes of fire-retardant (resistors),...

[Page 26] Panasonic SB-WA530EB

15.1. Cabinet 15.1.1. Cabinet Parts Location 26 SB-WA530EB ...

[Page 27] Panasonic SB-WA530EB

27 SB-WA530EB ...

[Page 28] Panasonic SB-WA530EB

15.1.2. Cabinet Parts List Ref. No. Part No. Part Name & Description Remarks CABINET AND CHASSIS 1 RFKHBWA730PP SUB WOOFER CAB ASS’Y [M] 1-1 XTB3+12GFJ SCREW [M] 1-2 B3AAA0000583 LED (RED) [M] 1-3 RGKX0284-H LEG [M] 1-4 XTB4+12AFJ WOOD SCREW (T...

[Page 29] Panasonic SB-WA530EB

15.2. Electrical Parts List Ref. No. Part No. Part Name & Description Remarks PRINTED CIRCUIT BOARD REPX0473B POWER P.C.B./ AC INLET P.C.B./ TRANSFORMER P.C.B. [M] RTL INTEGRATED CIRCUITS IC501 RSN311W64D-P IC HIC (PBF) [M] TRANSISTORS Q501 B1AAC...

[Page 30] Panasonic SB-WA530EB

Ref. No. Part No. Part Name & Description Remarks R508 ERDS2TJ392T 3.9K 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 15K 1/4W [M] R513 ERDS2TJ563T 56K 1/4W [M] R514 ERDS2TJ5...

[Page 31] Panasonic SB-WA530EB

Ref. No. Part No. Part Name & Description Remarks PACKING MATERIALS Ref. No. Part No. Part Name & Description Remarks P1 RPNX0292 POLYFOAM [M] P2 RPFX0071 MIRAMAT BAG [M] 15.3. Packing Materials & Accessories Parts List 15.4. Packaging 31...