Panasonic SB-WA05E User manual

ORDERNO. MD0402047C2
Active Subwoofer System
SB-WA05E / SB-WA05EB
Colour
(S)...Silver Type
SPECIFICATIONS
Specification
1

Activesubwoofer
Type 1way, 1speaker, Bass ref.
Speaker unit (Woofer) 17 cm conetype, 4
Input power (IEC) 220 W(Max)
Output sound pressure level 80 dB/W(1.0m)
Frequencyrange 32 Hz-220 Hz (-16 dB)
36 Hz-190 Hz (-10 dB)
Dimensions(WxH xD) 209 x361 x463 mm
Mass 11.5kg
General
Power supply AC 230-240V, 50 Hz
Power consumption 250 W
Power consumption instandby
mode 1W
Note:
Specificationsare subject tochangewithout notice.
Mass and dimensionsare approximate.
System : SC-HT05EB MusicCenter: SA-HT05EB
Satellitespeakers: SB-HT05P
ActiveSubwoofer: SB-WA05EB
System : SC-HT05EG MusicCenter: SA-HT05EG
Satellitespeakers: SB-HT05P
ActiveSubwoofer: SB-WA05E
System : SC-HT05EP MusicCenter: SA-HT05EP
Satellitespeakers: SB-HT05P
ActiveSubwoofer: SB-WA05E
System : SC-HT05EG1 MusicCenter: SA-HT05EG1
Satellitespeakers: SB-HT05P
ActiveSubwoofer: SB-WA05E
System : SC-HT05EP1 MusicCenter: SA-HT05EP1
Satellitespeakers: SB-HT05P
ActiveSubwoofer: SB-WA05E
System : SC-HT05EB1 MusicCenter: SA-HT05EB1
Satellitespeakers: SB-HT05P
ActiveSubwoofer: SB-WA05EB
SB-HT05P-S consistsof :
SB-PF725P-S x2, SB-FS725P-S x2and SB-PC725P-S x1
2004 PanasonicAVCNetworks Singapore Pte. Ltd. All rights
reserved. Unauthorized copying and distribution isaviolation of
law.
2

1. Safety Precautions
1.1. GENERALGUIDELINES
1. When servicing, observe the original lead dress. Ifashort circuit
isfound, replace all parts which have been overheated or
damaged bythe short circuit.
2. After servicing, see to itthat all the protective devices such as
insulation barriers, insulation papers shields are properly
installed.
3. After servicing, make the following leakage current checks to
prevent the customer from being exposed to shock hazards.
1.1.1. LEAKAGE CURRENTCOLD CHECK
1. Unplug the AC cord and connect ajumper between the two
prongs on the plug.
2. Measure the resistance value, with an ohmmeter, between the
jumpered AC plug and each exposed metalliccabinet part on the
equipment such as screwheads, connectors, control shafts, etc.
When the exposed metallicpart has areturn path to the chassis,
the reading shouldbe between 1M and 5.2 . / When the
exposed metal does not have areturn path to the chassis, the
reading must be . Fig. 1
1.1.2. LEAKAGE CURRENTHOTCHECK (See Figure1.)
3

1. Plug the AC cord directlyinto the AC outlet. Donot use an
isolation transformer for thischeck.
2. Connect a1.5k , 10 watts resistor, inparallel with a0.15 F
capacitors, between each exposed metallicpart on the set and a
good earth ground such as awater pipe, as showninFigure 1.
3. Use an AC voltmeter, with 1000 ohms/voltor more sensitivity, to
measure the potential across the resistor.
4. Check each exposed metallicpart, and measure the voltage at
each point.
5. Reverse the AC plug inthe AC outlet and repeat each of the above
measurements.
6. The potential at anypoint shouldnot exceed 0.75 volts RMS. A
leakage current tester (Simpson Model 229 or equivalent) maybe
used to make the hot checks, leakage current must not exceed 1/2
milliamp. Incase ameasurement isoutside of the limits specified,
there isapossibilityof ashock hazard, and the equipment should
be repaired and rechecked before itisreturned 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 leadfree solderwill have a PbF stampon the P.C.B.
Caution:
-Pb free solder has ahigher melting point that standard solder;
Typicallythe melting point is50 -70°F (30 -40°C)higher. / Please
use ahigh temperature soldering iron. Incase of the soldering
iron with temperature control, please set itto 700 ± 20°F (370 ±
10°C).
-Pb free solder will tend to splash when heated too high (about
1100°F/600°C).
-When soldering or unsoldering, please completelyremove all of
the solder on the pins or solder area, and be sure to heat the
soldering points with the Pb free solder until itmelts enough.
3. Before Repair and Adjustment
Disconnect AC power, discharge PowerSupplyCapacitors C546, C547, C548, C549 through a
10 , 1 W resistortoground.
4

DO NOTSHORT-CIRCUITDIRECTLY (witha screwdriverblade, forinstance), as this may
destroysolidstate devices.
Afterrepairs are completed, restore powergraduallyusing a variac, toavoidovercurrent.
Current consumption at AC 230V, 50Hz inNO SIGNALmode shouldbe ~1000 mA.
4. Protection Circuitry
The protection circuitrymayhave operatedif eitherof the following conditions are noticed:
-Nosound isheard when the power isturned on.
-Sound stops during aperformance.
The function of this circuitryis toprevent circuitrydamage if, forexample, the positive and
negative speakerconnection wires are
“shorted”, orif speakersystems withanimpedance less thanthe indicatedratedimpedance of
the amplifierare used.
If this occurs, followthe procedure outlines below:
1. Turn off the power.
2. Determine the cause of the problem and correct it.
3. Turn on the power once againafter one minute.
Note :
Whenthe protection circuitryfunctions, the unit will not operate unless the poweris first turned
off and thenon again.
5. Connection of the Speaker Cables
-Besure to connect speaker cables before connecting the AC
power supplycord.
-The load impedance of anyspeaker used with thisunitmust be 4 .
-Besure to connect the cablefrom the right speaker to the right
terminal and the cablefrom the left speaker to the left terminal.
1. Stripoff the outer covering, and twist the center conductor. Make
sure the bare ends of the wires are not unravelled. (Iftheyare,
twist them tight again.)
2. Insert the wire to the rear panel of the unitand close the lever.
5

Notes :
-To prevent damage to circuitry, never short-circuitpositive (+)and
negative (-) speaker wires.
-Besure to connect onlypositive (red) wires to positive (+)
terminalsand negative (black) wires to negative (-) terminals.
6. Disassembly Procedure
“ATTENTION SERVICER”
Some chassis components mayhave sharpedges.
Be careful whendisassembling and servicing.
1. Thissection describes procedures for checking the operation of
the major printed circuitboards and replacing the main
components.
2. For reassemblyafter operation checks or replacement, reverse
the respective procedures.
Special reassemblyprocedures are described onlywhen required.
3. Select items from the following index when checks or
replacement are required.
Contents
6

-Disassemblyof the Speaker Unit
-MainComponent Replacement Procedures
6.1. Disassemblyflow chart
The following chart is the procedure fordisassembling the casing and inside parts forinternal
inspection whencarrying out the servicing.
To assemble the unit, reverse the steps showninthe chart below.
6.2. Disassemblyof the Speaker Unitand Checking of the P.C.B.s.
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Step1: Remove all the screws.
Step2: Remove the stand base.
Step3: Remove all the screws fromthe bottomof the speakerunit.
Step4: Remove the screws fromthe rearpanel’s speakerunit guide.
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Step5: Remove the screws fromthe subwoofer.
-Disassemblyof Power Amp unit.
Step6: Remove 2 screws fromthe PowerAmpunit.
Step7: Pull out the PowerAmpunit slightlyas shown.
(Note: Be careful of attachwire at CN506).
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Step8: Release the connectorCN506 thenpull out the entire PowerAmpunit.
Steps 9 & 10: Remove all the screws.
Step11: Release the connectorCN507 toremove the rearpanel.
-Checking for the Power and AC Inlet P.C.B.
10

Step12: Remove the screws fromthe AC Inlet P.C.B.
Steps 13 & 14: Remove the screws.
Step15: Place the PowerP.C.B. and the AC Inlet P.C.B. as shownforchecking.
-Checking for the Transformer P.C.B.
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Step16: Remove the screws.
Step17: Place the P.C.B. as shownforchecking.
-Replacement of the Power ICand Transistor
Step 1: Desolder the Power ICand Transistor terminals.
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Step 2: Remove the screwsfrom the IC501.
Step 3: Remove the screw.
Step 4: Replacement of the Power ICand Transistor.
7. Connection of the Speaker Wiring
13

8. Block Diagram
9. Schematic Diagram
(All schematic diagrams maybe modifiedat anytime withthe development of the new
technology)
Note:
-The voltage value and waveforms are the reference voltage of this
unitmeasured byDC electronicvoltmeter (high impedance) and
oscilloscope on the basisof chassis. Accordingly, there mayarise
some error involtage values and waveforms depending upon the
internal impedance of the tester or the measuring unit.
-Importance safetynotice :
Components identified bymark have special characteristics
important for safety. Furthermore, special parts which have
purposes of fire-retardant (resistors), high-qualitysound
(capacitors), low-noise (resistors), etc. are used. When replacing
anyof components, be sure to use onlymanufacturer's specified
parts showninthe parts list.
Caution !
IC, LSI and VLSI are sensitive tostatic electricity.
Secondarytrouble canbe preventedbytaking care during repair.
-Cover the parts boxes made of plastics with aluminium foil.
-Put aconductive mat on the work table.
-Ground the soldering iron.
-Donot touch the pins of IC, LSI or VLSI with fingers directly.
10. Printed Circuit Board
11. Wiring Connection Diagram
12. Illustration of IC’s, Transistors and Diodes
13. Parts Location and Replacement Parts List
Notes:
-Important safetynotice:
Components identified bymark have special characteristics
important for safety.
Furthermore, special parts which have purposes of fire-retardent
(resistors), high-qualitysound (capacitors), low noise (resistors),
14

etc are used.
When replacing anyof these components, be sure to use only
manufacturer’sspecified parts showninthe parts list.
-The parenthesized indications inthe Remarks columns specifythe
areas or colour. (Refer to the cover page for area or colour)
Parts without these indications can be used for all areas.
-Capacitor values are inmicrofarads ( F) unless specified
otherwise, P= Pico-farads (pF), F= Farads.
-Resistance values are inohms, unless specified otherwise, 1K=
1,000 (OHM).
-The marking (RTL) indicates that the Retention Time islimited for
thisitems. After the discontinuation of thisassemblyin
production, the item will continue to be availablefor aspecific
period of time. The retention period of aavailabilityisdependent
on the type of assembly, and inaccordance with the laws
governing part and product retention. After the end of thisperiod,
the assemblywill no longer be available.
-[M] Markings inthe Remarks columns indicates parts supplied by
PAVCSG.
13.1. Cabinet
13.1.1. Cabinet PartsLocation
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13.1.2. Cabinet PartsList
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Ref. No. PartNo. PartName& Description Remarks
CABINETAND CHASSIS
1RFKHBWA05PPS ACT. SUBWOOFER ASS’Y [M]
2RMVX0077-H SPEAKER UNITGUIDE [M]
3RMQ0783 EVAPACKING [M]
4RGKX0255-S STAND ORNAMENT [M]
5RGRX0033C-F1 REAR PANEL [M]E
5RGRX0033C-H1 REAR PANEL [M]EB
6REM0072-3 FAN [M]
7RKQ0089A PCB SUPPORT [M]
8RMN0203 PCB SUPPORT [M]
9RMRX0047-W LED HOLDER [M]
10 RKA0147-K LEG RUBBER [M]
11 RMG0623-K TRANSHOLDER [M]
12 XTW3+15T SCREW [M]
13 RHD30092 SCREW [M]
14 XTB3+16AFZ SCREW [M]
15 XTB3+20JFZ SCREW [M]
16 XTB4+12AFZ SCREW [M]
17 XTBS3+8JFZ1 SCREW [M]
18 XTS4+20JFZ SCREW [M]
19 XYC26+CJ6FZ SCREW [M]
13.2. Electrical Parts List
Ref. No. PartNo. PartName& Description Remarks
PRINTED CIRCUITBOARD
REPV0025C POWER P.C.B./ AC INLETP.C.B./ TRANSFORMER P.C.B./ LED
P.C.B. [M] (RTL)(E)
REPV0025A POWER P.C.B./ AC INLETP.C.B./ TRANSFORMER P.C.B./ LED
P.C.B. [M] (RTL)(EB)
INTEGRATED CIRCUITS
IC501 RSN311W64B-P IC HIC [M]
IC502 C0AABB000055 IC BUFFER AMP [M]
TRANSISTORS
Q501 KTC3199GRTA TRANSISTOR [M]
Q502 KTC3199GRTA TRANSISTOR [M]
Q503 KTC3199GRTA TRANSISTOR [M]
Q505 KTC3199GRTA TRANSISTOR [M]
Q506 KRA102MTA TRANSISTOR [M]
Q511 KTC2026 TRANSISTOR [M]
Q512 KTA1046 TRANSISTOR [M]
Q513 KTC3199GRTA TRANSISTOR [M]
Q514 KTC3199GRTA TRANSISTOR [M]
Q515 KTC3199GRTA TRANSISTOR [M]
Q516 KRC102MTA TRANSISTOR [M]
Q517 KTC2026 TRANSISTOR [M]
Q519 KTC3199GRTA TRANSISTOR [M]
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Ref. No. PartNo. PartName& Description Remarks
Q520 KRA102MTA TRANSISTOR [M]
Q552 KTA1267GRTA TRANSISTOR [M]
Q553 2SD0592ARA TRANSISTOR [M]
Q554 KTA1267GRTA TRANSISTOR [M]
Q555 2SD0592ARA TRANSISTOR [M]
Q556 KTA1267GRTA TRANSISTOR [M]
Q557 2SD0592ARA TRANSISTOR [M]
DIODES
D500 B0AACK000004 DIODE [M]
D501 B0JAPG000019 DIODE [M]
D502 B0JAPG000019 DIODE [M]
D503 MA2C700A0F DIODE [M]
D504 B0AACK000004 DIODE [M]
D508 B0AACK000004 DIODE [M]
D509 B0BA5R100013 DIODE [M]
D510 B0BA5R100013 DIODE [M]
D511 B0HARM000017 DIODE [M]
D512 B0HARM000017 DIODE [M]
D513 B0HARM000017 DIODE [M]
D514 B0HARM000017 DIODE [M]
D515 B0HARM000017 DIODE [M]
D516 B0HARM000017 DIODE [M]
D517 B0HARM000017 DIODE [M]
D518 B0HARM000017 DIODE [M]
D524 SLI325URCT31 DIODE [M]
D525 B0BA6R600008 DIODE [M]
D527 B0EAKM000122 DIODE [M]
D528 B0EAKM000122 DIODE [M]
D529 B0EAKM000122 DIODE [M]
D530 B0EAKM000122 DIODE [M]
D533 B0BA5R100013 DIODE [M]
D555 B0AACK000004 DIODE [M]
D556 B0BA9R600002 DIODE [M]
D557 B0EAKM000117 DIODE [M]
D558 B0AACK000004 DIODE [M]
D559 B0AACK000004 DIODE [M]
D560 B0AACK000004 DIODE [M]
D561 B0BA8R700009 DIODE [M]
D562 B0AACK000004 DIODE [M]
D563 B0BA01900005 DIODE [M]
D564 B0BA01900005 DIODE [M]
D565 B0BA01900005 DIODE [M]
D566 B0BA01900005 DIODE [M]
CONNECTORS
CN501 K1FB125B0095 SYSTEMCONNECTOR [M]
CN502 K1KB07B00020 CONNECTOR [M]
CN503 RJT119W15V CONNECTOR [M]
CN506 K1KA03A00006 3PCONNECTOR [M]
CN507 K1KA02A00008 FAN CONNECTOR [M]
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Ref. No. PartNo. PartName& Description Remarks
CP502 K1KA07A00123 CONNECTOR [M]
COILS& TRANSFORMERS
L500 RLQZ371 CHOKECOIL [M]
L501 G0AR76Y00001 COIL [M]
L502 G0AR76Y00001 COIL [M]
L503 G0AR76Y00001 COIL [M]
L504 G0AR76Y00001 COIL [M]
L505 G0AR76Y00001 COIL [M]
T501 G4C7AGH00003 POWER TRANSFORMER [M]
T502 G4C2AAJ00005 BACK UPTRANSFORMER [M]
COMPONENTCOMBINATION
Z501 ERZV10V511CS ZENER [M]
RELAY
RLY501 K6B1AEA00003 PC POWER RELAY [M]
FUSES
F1 K5D202BK0005 FUSE [M]
FUSE HOLDERS
FC501 EYF52BC FUSE HOLDER [M]
FC502 EYF52BC FUSE HOLDER [M]
FUSE PROTECTOR
FP1 K5G502AA0002 FUSE PROTECTOR [M]
HOLDERS
H500 K1YF15000004 15PWIREHOLDER [M]
H505A RMR0312 3PCABLEHOLDER [M]
H505B RMR0312 3PCABLEHOLDER [M]
SPEAKER
SP1 EAST17PL21B6 17CMSPEAKER UNIT [M]
JACKS
JK500 K2AA2B000004 JK AC INLET [M]
JK501 K4BC06B00043 JK SPEAKER [M]
JK502 K4BC04B00075 JK SPEAKER [M]
EARTH TERMINAL
19

Ref. No. PartNo. PartName& Description Remarks
E500 K4CZ01000027 EARTH LUG [M]
E501 K4CZ01000027 EARTH LUG [M]
WIRES
W1 REE1205 WIREUNIT [M]
W2 REE1204 WIREUNIT [M]
W500 REXX0361 WIREUNIT [M]
W505 RWJ1103320XX WIREUNIT [M]
RESISTORS
R401 ERDS2TJ224T 220K 1/4W [M]
R402 ERDS2TJ102T 1K 1/4W [M]
R403 ERDS2TJ104T 100K 1/4W [M]
R501 D0AE472JA048 4.7K 1/4W [M]
R502 D0AE472JA048 4.7K 1/4W [M]
R503 ERDS2TJ153T 15K 1/4W [M]
R504 ERDS2TJ153T 15K 1/4W [M]
R505 ERDS2TJ153T 15K 1/4W [M]
R506 ERDS2TJ153T 15K 1/4W [M]
R507 ERDS2TJ392T 3.9K 1/4W [M]
R508 ERDS2TJ392T 3.9K 1/4W [M]
R509 D0AE472JA048 4.7K 1/4W [M]
R510 D0AE472JA048 4.7K 1/4W [M]
R511 ERDS2TJ153T 15K 1/4W [M]
R512 ERDS2TJ153T 15K 1/4W [M]
R513 D0AE563JA048 56K 1/4W [M]
R514 D0AE563JA048 56K 1/4W [M]
R515 D0AE563JA048 56K 1/4W [M]
R516 D0AE563JA048 56K 1/4W [M]
R517 D0AE563JA048 56K 1/4W [M]
R518 D0AE563JA048 56K 1/4W [M]
R519 ERDS2TJ824T 820K 1/4W [M]
R520 D0AE223JA048 22K 1/4W [M]
R521 ERDS2TJ103T 10K 1/4W [M]
R522 ERDS2TJ273T 27K 1/4W [M]
R523 ERDS2TJ124T 120K 1/4W [M]
R524 ERDS2TJ124T 120K 1/4W [M]
R525 ERDS2TJ154T 150K 1/4W [M]
R526 ERDS2TJ124T 120K 1/4W [M]
R527 ERDS2TJ124T 120K 1/4W [M]
R528 ERDS2TJ154T 150K 1/4W [M]
R529 D0AE223JA048 22K 1/4W [M]
R530 ERD25FVJ1R0T 1 1/4W [M]
R531 ERD25FVJ1R0T 1 1/4W [M]
R532 D0AE472JA048 4.7K 1/4W [M]
R533 ERDS1FVJ100T 10 1/2W [M]
R534 ERDS1FVJ100T 10 1/2W [M]
R535 ERDS1FVJ100T 10 1/2W [M]
R536 ERDS1FVJ100T 10 1/2W [M]
R537 ERDS1FVJ100T 10 1/2W [M]
R538 ERDS1FVJ100T 10 1/2W [M]
R539 ERDS2TJ101T 100 1/4W [M]
20