ORDER NO.

MD0503056C3

Active Subwoofer System

SB-WA730GCP
Colour
(S)...Silver Type

Specification
n Active subwoofer
Type 1 way, 2 speaker system (Bass reflex) Note :
Speaker unit(s) Impedance 4 Ω Specifications are subject to change without notice.
1. Woofer 13 cm Cone type Mass and dimensions are approximate.
2. Woofer 13 cm Cone type
Output sound pressure 80 dB/W (1.0 m) n System : SC-HT730(GCP) Music Center: SA-HT730(GCP)
Frequency range 40 Hz-220 Hz (-16 dB) Satellite Speakers: SB-HT730(P)
45 Hz-180 Hz (-10 dB) Active Subwoofer: SB-WA730(GCP)
Dimensions (W x H x D) 201.5 mm x 368.2 mm x 491.5 mm n System : SC-HT730(PX) Music Center: SA-HT730(PX)
Mass 11.3 kg Satellite Speakers: SB-HT730(P)
Active Subwoofer: SB-WA730(GCP)
n General
Power supply AC 110V/127V/220-230V/240V,
50/60Hz
Power consumption 340 W
Power consumption approx. 0.9 W
(Standby mode)

CONTENTS
Page Page
1 Safety Precautions 3 3 Before Repair and Adjustment 4
1.1. GENERAL GUIDELINES 3 4 Protection Circuitry 4
2 Before Use 4

© 2005 Matsushita Electric Industrial Co. Ltd.. All

rights reserved. Unauthorized copying and
distribution is a violation of law.

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5 Handling the Lead-free Solder 4 11.2. Transformer Circuit, AC Inlet Circuit and Voltage Selector
5.1. About lead free solder (PbF) 4 Circuit 20
6 Connection of the Speaker Cables 5 12 Printed Circuit Board 21
7 Disassembly Procedure 6 12.1. Power P.C.B. 21
7.1. Disassembly flow chart 7 12.2. AC Inlet P.C.B., Transformer P.C.B. and Voltage Selector
7.2. Disassembly of the Speaker Unit and Checking of the P.C.B. 23
P.C.B. 8 13 Wiring Connection Diagram 24
8 Voltage Measurement and Waveform Chart 14 14 Illustration of IC 痴, Transistors and Diodes 25
8.1. Voltage Measurement 14 15 Parts Location and Replacement Parts List 26
8.2. Waveform 15 15.1. Cabinet 27
9 Block Diagram 16 15.2. Electrical Parts List 30
10 Notes of Schematic Diagram 17 15.3. Packing Materials & Accessories Parts List 32
11 Schematic Diagram 18 15.4. Packaging 32
11.1. Power Circuit 18

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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. After servicing, check for leakage current to prevent from being exposed to shock hazards.

1.1.1. LEAKAGE CURRENT COLD CHECK

1. Unplug the AC cord and connect a jumper between the two prongs on the plug.
2. Using an ohmmeter measure the resistance value, between the jumpered AC plug and each exposed metallic cabinet part on
the equipment such as screwheads, connectors, control shafts, etc. When the exposed metallic part has a return path to the
chassis, the reading should be between 1MΩ and 5.2Ω.
When the exposed metal does 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 AC voltmeter, with 1000 ohms/volt or more sensitivity, to measure the potential across the resistor.
4. Check each exposed metallic part, and measure the voltage at each point.
5. Reverse the AC plug in the AC outlet and repeat each of the above measurements.
6. The potential at any point should not exceed 0.75 volts RMS. A leakage current tester (Simpson Model 229 or equivalent) may
be used to make the hot checks, leakage current must not exceed 1/2 milliamp. Should the 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.

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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” position.)
Note that this unit will be seriously damaged if this setting is not made correctly. (There is no voltage selector for some countries;
the correct voltage is already set.)

3 Before Repair and Adjustment

Disconnect AC power, discharge Power Supply Capacitors C546~C549 through a 10 Ω, 1 W resistor to ground.
DO NOT SHORT-CIRCUIT DIRECTLY (with a screwdriver blade, for instance), as this may destroy solid state devices.
After repairs are completed, restore power gradually using a variac, to avoid overcurrent.
Current consumption at AC 100/110 V, 50/60 Hz in NO SIGNAL mode should be ~1180 mA.
Current consumption at AC 230-240 V, 50 Hz in NO SIGNAL mode should be ~600 mA.

4 Protection Circuitry
The protection circuitry may have operated if either of the following conditions are noticed:
· No sound is heard when the 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 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 Handling the Lead-free Solder

5.1. 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 standard solder. Typically the melting point is 50 - 70°F (30 - 40°C) higher.
Please use a high temperature soldering iron. In case of the soldering iron with temperature control, please set it to 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 completely remove all of the solder on the pins or solder area, and be sure to heat the
soldering points with the Pb free solder until it melts enough.

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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. 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.

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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. For reassembly after operation checks 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 AC Inlet P.C.B., Power P.C.B. and Transformer P.C.B.
· Replacement of Power IC and Transistor

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7.1. Disassembly 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.

7.1.1. Disassembly of Front Panel Assembly

7.1.2. Disassembly of Rear Assembly

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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

Unit as arrow shown.
Step 1: Slot in a steel ruler to give a gap between the Front Note:
Panel Unit and the Subwoofer Cabinet Assembly as arrow Be careful with the bosses which are glued to the Subwoofer
shown. Cabinet Assembly.

Steps 2: Slot a piece of wood chip in between the Front Panel

Unit and the steel ruler as arrow shown.
Step 4: Remove the Front Panel Unit from the Subwoofer
Cabinet Assembly.

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· Assembly of the Front Panel Unit.

Step 1: Remove 4 screws from the Woofer 1.

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

Step 2: Remove the Woofer 1 by detaching the (+) and (-)
cabinet.
wires.

7.2.2. Disassembly of the Woofer 1 7.2.3. Disassembly of the Woofer 2

Follow Step (1) to Step (4) described in section 7.2.1.

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Step 1: Remove 4 screws from the Woofer 2.

Step 2: Remove 3 screws from the rear panel.

Step 2: Remove the Woofer 2 by detaching the (+) and (-)

wires.

7.2.4. Disassembly of the Power Amp

Unit

Step 3: Pull out the Power Amp Unit slightly as shown.

Step 1: Lay the speaker unit as shown. Remove 6 screws from

the bottom of the woofer unit.

Step 4: Disconnect connector CN506.

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Step 3: Disconnect the Voltage Selector from the rear panel.

Step 5: Pull out the entire Power Amp Unit.

Step 4: Disconnect the connector (CN507) to detach the rear
7.2.5. Disassembly of the Rear Panel and
panel.
Fan Unit
Follow Step (1) to Step (5) described in section 7.2.4.

Step 5: Remove 4 screws from the rear panel.

Step 1 & 2: Remove 8 screws from the rear panel.

Step 6: Lay the rear panel and remove the Fan Unit as arrow
shown.

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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 (4) described in section 7.2.5.

Step 6: Remove 4 screws.

Step 1: Remove the P.C.B. support 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 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 7.2.5.

Step 4 & 5: Remove 8 screws.

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Step 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.

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8 Voltage Measurement and Waveform Chart

Note:
· Indicated voltage values are the standard values for the unit measured by the DC electronic circuit tester (high-impedance)
with the chassis taken as standard.
Therefore, there may exist some errors in the voltage values, depending on the internal impedance of the DC circuit tester.
· Circuit voltage and waveform described herein shall be regarded as reference information when probing defect point
because it may differ from actual measuring value due to difference of Measuring instrument and its measuring condition
and product itself.

8.1. Voltage Measurement

INLET P.C.B.
Ref No. Q515 Q516 Q517 Q519
MODE E C B E C B E C B E C B
CD PLAY 0 0.1 0.8 0 2.8 -1.1 6.0 12.2 6.6 0 0.8 0
STANDBY 0 6.0 0 0 2.9 -1.1 6.0 11.6 6.6 0 0 0
TRANSFORMER P.C.B.
Ref No. IC501
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. IC501
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. Q501 Q502 Q503 Q505 Q506
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 0.8
STANDBY 0 0.6 0 0 0.6 0 0 0 0.7 0 -0.1 0 -0.1 0 -0.1
Ref No. Q511 Q512 Q520 Q552 Q553
MODE E C B E C B E C B E C B E C B
CD PLAY 5.2 29.9 5.7 -11.4 -29.9 -11.9 0 -2.0 0 0 -11.3 0.2 -11.3 5.1 -11.3
STANDBY 0.3 -0.1 -0.1 0.1 0 0 3.7 3.7 0 0 0 0 0.1 0.3 0.1
Ref No. Q554 Q555 Q556 Q557
MODE E C B E C B E C B E C B
CD PLAY 5.2 - 4.7 4.7 5.2 - 0 0.4 -0.2 0.4 5.1 0
STANDBY 0.3 0 0.4 1.9 0.3 0 0 0.3 0 0.3 0.6 0

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8.2. Waveform

CN501 PIN 1 CN501 PIN 3 CN501 PIN 8 CN501 PIN 21

CD PLAY CD PLAY CD PLAY CD PLAY
17.8Vp-p (10msec.div) 17.6Vp-p (10msec.div) 1.20Vp-p (10msec.div) 5.32Vp-p (10msec.div)

CN501 PIN 22 CN501 PIN 24 CN503 PIN 1 CN503 PIN 3

CD PLAY CD PLAY CD PLAY CD PLAY
6.76Vp-p (10msec.div) 6.60Vp-p (10msec.div) 124Vp-p (10msec.div) 62.4Vp-p (10msec.div)

CN503 PIN 7 CN503 PIN 9

CD PLAY CD PLAY
62.4Vp-p (10msec.div) 123Vp-p (10msec.div)

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9 Block Diagram

IC501
RSN311W64D-P
POWER HIC

+
-

-
POWER CONTROL
CIRCUIT
POWER CONTROL/PROTECTION CIRCUIT

DISP HMUT
+VCC LOW

-VCC LOW
+DI SENS

-DI SENS
+VCC HI

SL_O(R)
FL_O(R)

-VCC HI
SLIN(R)
FLIN(R)

IN GND
SUB_O

IH DET
SUBIN

AC IN
C_O
+VD
CIN

-VD
26 22 23 18 15 20 3 6 1 8 12(11) 5 24 13 9 14 7 21 4 16
(25) (19) (2)
B B
D501
B B

B
D502
Q506
INTERFACE
SWITCH
TO MAIN
BLOCK
(JK2000) OF Q505
SA-HT730GCP-S
SWITCHING

SL(R)/SURRL(R)
FILTER
JK501(JK502)
SURROUND
SPEAKER

CCH/CENTRE
FILTER
JK502
CENTRE
SPEAKER

FILTER
SUBWOOFER

FL(R)/FRONTL(R)
FILTER
JK501
FRONT
Q512 SPEAKER
VOLTAGE
B REGULATOR
Q501, T501
Q502
DC_DET
SWITCH
D597

D508
B
Q552~Q557 B S500
FAN POWER TRANSFORMER
SUBWO/SUBWOOFER
MOTOR
DRIVE
D598,D599 VOLTAGE
M SELECTOR
Q520 Q503
B
HP_CNT/MUTE_H INTERFACE
SWITCH
SWITCH B
Q511
VOLTAGE F2
REGULATOR

AC1(4)/SUBAC1

AC2(5)/SUBAC2
FL1
FL2

B
RLY501
Q515,Q519
PCONT DCDET
SWITCH
B T502
D527~D530
Q517 B
VOLTAGE Z501 JK500
TRANSFORMER

REGULATOR AC INLET
Q518

VOLTAGE
SUB

REGULATOR
F1
Q516
SYNC SYNC
SWITCH E500

SIGNAL LINES

: MAIN SIGNAL LINE

( ) Indicates Pin No. of Right Channel Note : Signal Lines are applicable to the Left Channel only.

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10 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.
Accordingly, there may arise some error in 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 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 taking care during
repair.
· Cover the parts boxes made of plastics with aluminium foil.
· Put a conductive mat on the work table.
· Ground the soldering iron.
· Do not touch the pins of IC, LSI or VLSI with fingers directly.

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11 Schematic Diagram
11.1. Power Circuit
SCHEMATIC DIAGRAM-1
: -B SIGNAL LINE : MAIN SIGNAL LINE
POWER CIRCUIT : +B SIGNAL LINE

C551

DISP HMUT

+VCC LOW
0.01 IC501

-VCC LOW
IC501

+Di SENS
-Di SENS
RSN311W64D-P

+VCC HI
-VCC HI
IN GND

SUB_O
IH DET
RELAY
SUBin

SR_O

AC IN

FR_O
POWER HIC

SL_O

FL_O
E501

+VD
FRin

GND
SRin
FLin

C_O
SLin
-VD
Cin
K4CZ01000027
26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1

R501 R513
4.7K 56K

R502 C507 18P

4.7K
R514 56K

C505 1000P
C506 1000P

R523
C508 18P

120K
R524
120K
R506 D501-D502

D502

D501
15K B0JAPG000019
R516 56K
R526
C504 1000P
1000P
C502

C510 22P 120K

C501
R505 1000P
15K R525
150K
C503
1000P R515 56K
4.7K

R509 C509 22P

4.7K R527
120K
R510

R517 56K
R511
15K C511 22P
R507
3.9K
R503
15K R518 56K
CN501

R522
R528
150K R521

27K
C512 22P
AC1 R512 10K
1 15K
R504
R519
820K

DC_DET R508 C513

2 15K 3.9K 0.047 6.3V100
C516 R529
C514
R520

C515
22K

AC2 0.01 22K

3 0.01
C517
SYS6V 0.01
4
HP_CNT R530 1
5
D.GND R531 1
6
FL
7
SUB+B R402 R532
8
A.GND
1K Q520 4.7K Q503 Q503
9 B1GCCFJJ0015
A.GND INTERFACE SWITCH B1AACF000089
10 SWITCH
FR
11
TO SL
12
MAIN CIRCUIT A.GND
13
(JK2000) OF
SA-HT730GCP-S SR
14
C D504 R546
15 B0AACK000004 1K
A.GND D503
16 MA2C700A0F
17 SW R545
220K
Q506
A.GND
18 R547 B1GCCFJJ0015
0.1

D503
390K INTERFACE SWITCH
3.9K

PCONT
19 Q501-Q502
B0AACK000004
C529

20 Fan Control Q501 Q502 B1AACF000089

Q505 SWITCH
D508
R549

SYNC
21 B1AACF000089
FL C534 R548 SWITCHING
22 50V33 330K
AC2
23
FL
24
AC1
25
Q557
2SD0592ARA
FAN MOTOR DRIVE Q556
D562
R603 B1ACCF000063 B0AACK000004 C580
10K FAN MOTOR DRIVE 50V 2.2
B0AACK000004
D560

C647
50V 470

Q557 R581
D558 D559 Q554
B0AACK000004 6.8K R562 R558
B1ACCF000063 4.7K 100K
FAN MOTOR DRIVE
R559
D559
C574
R564 Q553 Q552 10K
0.01
220K
B0EAKM000117

Q554 R602
4.7K
C578
0.01
Q556 C575 D556 D555
D557

D558 R582 0.01 B0BA01100004 B0AACK000004

220K C579
C570 R563 0.01
R583 16V 330 1K
100 Q555
R584
47K
C576 Q555
16V 10 2SD0592ARA Q553 Q552
FAN MOTOR DRIVE
+ R606 22 2SD0592ARA B1ACCF000063
1 C577 FAN MOTOR DRIVE FAN MOTOR DRIVE R604
16V 10 2.2M
TO FAN -
2
CN507

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SCHEMATIC DIAGRAM-2
: -B SIGNAL LINE : MAIN SIGNAL LINE
POWER CIRCUIT : +B SIGNAL LINE

JK501

6 -
SRLch
5 +

4 -
FRch
3 +

2 -
FLch
1 +

C518 C519
0.047 0.047
R533 R534
10 10

JK502
1 +
SRRch
2 -

3 +
CENTER
4 -
C569
0.047
4
C520 C521 C522 C523
0.047 0.047 0.047 0.047 3
SUB WOOFFER
R535 R536 R537 R538 2
10 10 10 10
1

CN506

R577
C530 C531 C532 C533 1.5K CP502
1000P 1000P 1000P 1000P
1
PCONT 2
D.GND
TO
3 AC INLET
SYNC
4 CIRCUIT
SYS6V
(CN502) ON
5 SCHEMATIC
HELP
6 DIAGRAM-3
D509 7
B0BA5R100013 C550
0.01
R567 R609
C560 D509 1.5K 1.5K E500
50V10 K4CZ01000027

Q511 C546
42V3300
C547 C548
42V4700 42V4700
B1BACG000036 C545
VOLTAGE REGULATOR 0.1
C549
42V3300
R569 R570 R565 3.9K
C543 1.8K 10K
1000P
R571
R568 1.8K D599 B0FBAM000009 D598 B0FBAM000009
150
B0BA5R600016

CN503
D510

C544 1
50V100 C554
0.1
2

3
B0BA01100004

4
D561

C572 5
D597 B0FBAM000009
50V100 R560
150 6
TO
7
TRANSFORMER
C573
8 CIRCUIT
C553 (H503/W503) ON
1000P R561 0.1 9
3.9K FP1 SCHEMATIC
K5G502AA0002
10 DIAGRAM-3
R610
Q512 4.7
11
B1BCCG000021 FP1 5A
12
VOLTAGE REGULATOR
13
R600
47K D563 D564 14
15
R601 D563-D566
47K B0BA01900005

D565 D566

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11.2. Transformer Circuit, AC Inlet Circuit and Voltage Selector Circuit

SCHEMATIC DIAGRAM-3
: -B SIGNAL LINE
: +B SIGNAL LINE

Q518
B1AAGC000007
VOLTAGE REGULATOR

R588 C581
820K 1000P

R589 C555
10K 35V4.7

Q516 R578
B1GACFJJ0016 10K
SYNC SWITCH
CN502
D530
1 R580 B0EAKM000122 D529
PCONT 22 MA2C700ADF
2

25V1000
TO D.GND

C571
POWER CIRCUIT 3 Q517 R587
SYNC D527, D528
(CP502) ON 4 B1BACG000036 2.7K
B0EAKM000122
VOLTAGE REGULATOR D530 D528
SCHEMATIC SYS6V
DIAGRAM-2 5 C559
HELP 0.01
6 C556
0.01 D534
VOLTAGE SELECTOR CIRCUIT 7
B0AACK000004

16V1000
C558
D527
C557 D525
W4 YEL RED W5 16V100P B0BA7R000005

W3 GRY 5
6 VIO W6
240 R401
4 127 220 7 220K
110 110
W10 ORG LBLU W7
3 220 127 8
240 R590 R579
S500 2 1 1K 3.3K
K0AFZA000005
W9 WHT BLK W8

Q519 Q515 T502

B1AACF000089 G4C2AAJ00005
3 4
DCDET SWITCH
Q515 2
B1AACF000089 1 6
DC DET SWITCH
ORG(W10)

LBLU(W7)
WHT(W9)
GRY(W3)

RED(W5)
YEL(W4)

BLK(W8)

VIO(W6)

F2 W1
250V 2A (BRW)

FC503 FC504 W2
(BLU)

T501 4 2
G4C8AHK00005
H503/W503
17 D500 RLY501
1 7 B0AACK000004 D500 K6B1AEA00003
16 3 1
2
4
15
3 C500
14 1000P
4 5
13
5
12 3
6
11
TO 7
POWER CIRCUIT 2
10
8 F1
(CN503) ON 6 250V 3.15A JK500
SCHEMATIC 9 9
DIAGRAM-2 1
FC502 FC501
10
11

12 Z501
ERZV10V511CS AC IN
13 110V/127V/
220~230V/240V
14 50Hz/60Hz

15

TRANSFORMER CIRCUIT AC INLET CIRCUIT

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 SB-WA730GCP

12 Printed Circuit Board

12.1. Power P.C.B.

A B C D E F G

1
A POWER P.C.B (REPX0480A)

CN501 J539

2 J570

J581
25 J528
24
23
J501
22
21
20
19
18
C550
CP502
16
17
E500

J571
7 6 5 4 3 2 1
J591
15

J507
J508
14 3

J502
J592

13
TO MAIN UNIT 2
Q55
J534
12
11
J567 D508 R583

J627
10 1
E C

3
9
8
7 J504
6
5 J533 C576

J572
4 D504
3 C577 R606
2
Q505 Q506

J573
1
B B
J512 D558
R521

R545
C529

R549
R547
D503

R548
C534
C C
J568

R522 R581

J506
E E
J521

C533
JK502

D559
4

4
C532
CENTRE 3-C
SPEAKER
C531

J626
C549

2
R537
C530

J565
J579
SURROUND RIGHT
C522

1-SR
SPEAKER
J538
J625

C548
6
J622 J593

J577
SURROUND LEFT J594

R565
5-SL
SPEAKER

C547
J596
C519

5 4
J595
R534

FRONT RIGHT 3-FR J574

SPEAKER J575
R533

2 J537

J532
C518

R535
FRONT LEFT 1-FL R531 J511

D501
CN506

R529
SPEAKER

C545
R577

CN507
J621

JK501 R536
1
R530
J563
2
2
J562

R519
1

C513
3 J599
6
C520

R538
J410

4
J561
C
C521

J414

C523 J576
C569

D502
J623

J536
J597
J598
IC501
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17

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G H I J K L M

J515

J583
J584
J507
J508

D562

Q556 Q557
Q552 FP1

J535
J548
J547

J546
J545
D508 B
J567 R583
R584

5A
R603
C647

E C B
J520

C C570 B

R602
R562
J504 C580

R559
C578
CN503
R563

E C
J533
C579

C576 R604 J586

R606 R582
Q555 Q554 E 15
Q505 Q506 D560 R558 Q501
B B
B B
D555
E C B
B
Q502 14
C575

D558 Q553

C514
B
D557 C C 13

R546
J587
R548

R520
Q520

J589
C C R564 C
D556
C574
J549

J530

R581 E E R402 C 12
J506

E E E C B E
D559

E 11

C560

D509
J544 10
D599
J588 9

1+ 2~ 3~ 4- 8

7
J542

J543 J578 J553

C554
J565
J579

6
D598 J630
J554 5

1+ 2~ 3~ 4- 4
J555
J552

C553
J569 2
R565

D597
C546

J556
C547

J557
1+ 2~ 3~ 4-
J560
J566

J580
J558
J532

D566 D565
J585

J511 J417
R527
R570
J564
D501

R529

R601
C545

R517 R502 R567

J563 Q503
D561

R560
R504

R561
C511
R532

J562 R508 D510 J516

R519

E C B R503
R571

R528 R507
R523
C513

J590

C551
R501

R609

R600
R513
C507

J559
R524
R514

C544

C572
C508

R526

C517
R515
C509
R516
C510

R505
R506
R525

J576
R518
C512

D502 J510 R569 E501

C515

C503 1 2 3
R568
C505

R510
C516

7 C504 C506 C502 C543

J598
C573

R509 R610
IC501 C501
R512
R511

D564

J541
8 11 12 13 14 15 16 18 19 20 21 22 24 25 26 Q511 Q512 D563
6 7 9 10 17 23

B C E B C E
PbF

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12.2. AC Inlet P.C.B., Transformer P.C.B. and Voltage Selector P.C.B.

A B C D E F G

1
B AC INLET P.C.B (REPX0480A)

W2 W1
2 F1
(BLU) (BRW)

T3.15AL 250V

Z501
FC501 FC502

T502 (SUB-TRANSFORMER)
Q517
JK500 Q516
3
E
2 1
J6001
J900 RLY501 E C B
AC IN C
J6010

C555

D534
R589 B
2
110V J6002 Q519 R578
C557
/127V 1
B

R590
/220-230V/ C558

D525
J6003 C

240V

D527
J901

R579
E

R587
D530

D529
50/60Hz J6004
B

D500
C581

C559
C
3 4 5 E C571
Q515 Q518

J6009

D528
4 3 E C B

J6006
4
R588
J6007 R580 C556

R401
J6008 J6005

CN502
7 6 5 4 3 2 1
PbF

5 CAUTION
RISK OF ELECTRIC SHOCK

C TRANSFORMER P.C.B (REPX0480A) AC VOLTAGE LINE.

PLEASE DO NOT TOUCH THIS P.C.B

F2
W2 W1 W9 T2AL W5
6 (BLU) (BRW) (WHT) FC504 250V FC503 (RED)
T501
(POWER
TRANSFORMER)

H503
/W503 D VOLTAGE
SELECTOR
1 W10

7
2
3
(ORG)
P.C.B (REPX0480A)
4
W3
5 (GRY)
6
7
W4 W4
8 (YEL) W3
9 (YEL)
(GRY)
10
W6 7 6
W10
11 (VIO) (ORG)
12
W9 8 5
13
W7
8 14
15
(LBLU)
(WHT)
S500
(VOLTAGE SELECTOR)
W8 W6 1 4
W5
(BLK) (VIO) (RED)
2 3

W7
SEONDARY PRIMARY PbF (LBLU) W8
(BLK)
PbF
9

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13 Wiring Connection Diagram

CN501
24 25
. .
. . 7. . . . . .1
TO MAIN UNIT . .
. . CP502 CN503
. . 15
. . .
2 . .
1
.
CENTER .
SPEAKER 4 .
. 3 JK502
. . .
SURROUND 2 . .
RIGHT SPEAKER 1 FAN .
.
SURROUND
LEFT SPEAKER 6 1
. 5
FRONT RIGHT . .
2 .
SPEAKER 1 CN507
1 -
FRONT LEFT 2 2 SPEAKER
SPEAKER JK501 1 3
4 + WOOFER
CN506

PbF
SOLDER SIDE

POWER P.C.B.

VOLTAGE
W5
D SELECTOR P.C.B.
(RED)
W2 W1 W9
(BLU) (BRW) (WHT)

T501
W10
(ORG)
H503/W503

1 W3 W10 W5 W8
(GRY) (ORG) (RED) (BLK)
. W3
. W4 (GRY)
. (YEL) PbF
. SOLDER SIDE
. W6
(VIO)
.
. W7 S500
. (LBLU)
.
15 W8 W4 W9 W6 W7
(BLK) (YEL) (WHT) (LBLU)
(VIO)

SOLDER SIDE PbF

TRANSFORMER P.C.B.

W2 W1
(BLU) (BRW)

AC IN
110V
JK500
AC INLET
/127V
/220-230V
/240V
P.C.B.
50/60Hz

CN502
7. . . . . .1 SOLDER SIDE
PbF

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14 Illustration of IC’s, Transistors and Diodes

RSN311W64D-P B1AACF000089 B1BCCG000021 B1AAGC000007 B1ACCF000063

B1GCCFJJ0015 B1BACG000036
B1GACFJJ0016

1 BC
E E
C E
B B C
C B
E
26

2SD0592ARA B0AACK000004 B0JAPG000019 MA2C700A0F B0BA5R100013

B0EAKM000117 B0BA6R600008
Ca Ca
Cathode Ca
Cathode
A
E A A Cathode
C Anode
Anode
B
Anode

B0BA5R600016 B0EAKM000122 B0BA01900005 B0FBAM000009

B0BA01100004 Ca B0BA7R000005
Cathode
A

Anode

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15 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.
· The parenthesized indications in the Remarks columns specify the 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 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 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.

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 SB-WA730GCP

15.1. Cabinet
15.1.1. Cabinet Parts Location

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 SB-WA730GCP

15.1.2. Cabinet Parts List

Ref. No. Part No. Part Name & Description Remarks
CABINET AND CHASSIS

1 RFKHBWA730PP SUB WOOFER CAB. ASSY [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 (TBZP) [M]
1-5 RKAX0019-KJ LEG CUSHION [M]
2 RYQX0167A-S FRONT PANEL UNIT [M]
3 RMQX0106 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 SPACER [M]
20 RMQX0108 EVA PACKING FOR WOOFER [M]
21 XTN26+10JFJ SCREW [M]
23 XTB4+15AFJ SCREW (TBZP) [M]

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15.2. Electrical Parts List Ref. No.

CN503
Part No.
K1KA15A00159
Part Name & Description
15P CONNECTOR
Remarks
[M]
Ref. No. Part No. Part Name & Description Remarks CN506 K1KA04A00105 4P CONNECTOR [M]
PRINTED CIRCUIT BOARD CN507 K1KA02A00008 2P CONNECTOR [M]

REPX0480A POWER P.C.B./ AC INLET [M] RTL CP502 K1KA07A00123 7P CONNECTOR [M]
P.C.B./ TRANSFORMER P.C.B.
/VOLTAGE SELECTOR P.C.B. T501 G4C8AHK00005 POWER TRANSFORMER [M]
T502 G4C2AAJ00005 SUB-TRANSFORMER [M]
INTEGRATED CIRCUITS
COMPONENT COMBINATION
IC501 RSN311W64D-P IC HIC (PBF) [M]
Z501 ERZV10V511CS ZENER [M]
TRANSISTORS
SPEAKER
Q501 B1AACF000089 TRANSISTOR [M]
Q502 B1AACF000089 TRANSISTOR [M] SP1 EAS13PL21A SPEAKER UNIT [M]
Q503 B1AACF000089 TRANSISTOR [M]
Q505 B1AACF000089 TRANSISTOR [M] RELAY
Q506 B1GCCFJJ0015 TRANSISTOR [M]
Q511 B1BACG000036 TRANSISTOR [M] RLY501 K6B1AEA00003 POWER RELAY [M]
Q512 B1BCCG000021 TRANSISTOR [M]
Q515 B1AACF000089 TRANSISTOR [M] FUSES
Q516 B1GACFJJ0016 TRANSISTOR [M]
Q517 B1BACG000036 TRANSISTOR [M] F1 K5D312BK0010 3.15A FUSE [M]
Q518 B1AAGC000007 TRANSISTOR [M] F2 K5D202BK0005 250V 2A FUSE [M]
Q519 B1AACF000089 TRANSISTOR [M]
Q520 B1GCCFJJ0015 TRANSISTOR [M] FUSE HOLDERS
Q552 B1ACCF000063 TRANSISTOR [M]
Q553 2SD0592ARA TRANSISTOR [M] FC501 EYF52BCY FUSE HOLDER [M]
Q554 B1ACCF000063 TRANSISTOR [M] FC502 EYF52BCY FUSE HOLDER [M]
Q555 2SD0592ARA TRANSISTOR [M] FC503 EYF52BCY FUSE HOLDER [M]
Q556 B1ACCF000063 TRANSISTOR [M] FC504 EYF52BCY FUSE HOLDER [M]
Q557 2SD0592ARA TRANSISTOR [M]
FUSE PROTECTOR
DIODES
FP1 K5G502AA0002 5A FUSE PROTECTOR [M]
D500 B0AACK000004 DIODE [M]
D501 B0JAPG000019 DIODE [M] HOLDER
D502 B0JAPG000019 DIODE [M]
D503 MA2C700A0F DIODE [M] H503 K1YF15000004 15P WIRE HOLDER [M]
D504 B0AACK000004 DIODE [M]
D508 B0AACK000004 DIODE [M] JACKS
D509 B0BA5R100013 DIODE [M]
D510 B0BA5R600016 DIODE [M] JK500 K2AA2B000009 JK AC OUTLET [M]
D525 B0BA7R000005 DIODE [M] JK501 K4BC06B00055 JK SPEAKER TERMINAL [M]
D527 B0EAKM000122 DIODE [M] JK502 K4BC04B00107 JK SPEAKER [M]
D528 B0EAKM000122 DIODE [M]
D529 MA2C700A0F DIODE [M] EARTH TERMINALS
D530 B0EAKM000122 DIODE [M]
D534 B0AACK000004 DIODE [M] E500 K4CZ01000027 TERMINAL [M]
D555 B0AACK000004 DIODE [M] E501 K4CZ01000027 TERMINAL [M]
D556 B0BA01100004 DIODE [M]
D557 B0EAKM000117 DIODE [M] WIRES
D558 B0AACK000004 DIODE [M]
D559 B0AACK000004 DIODE [M] W1 REEX0459 PRIMARY WIRE (BROWN) [M]
D560 B0AACK000004 DIODE [M] W2 REEX0458 PRIMARY WIRE (BLUE) [M]
D561 B0BA01100004 DIODE [M] W503 REXX0456 15P WIRE [M]
D562 B0AACK000004 DIODE [M]
D563 B0BA01900005 DIODE [M] RESISTORS
D564 B0BA01900005 DIODE [M]
D565 B0BA01900005 DIODE [M] R401 ERDS2TJ224T 220K 1/4W [M]
D566 B0BA01900005 DIODE [M] R402 ERDS2TJ102T 1K 1/4W [M]
D597 B0FBAM000009 DIODE [M] R501 ERDS2TJ472T 4.7K 1/4W [M]
D598 B0FBAM000009 DIODE [M] R502 ERDS2TJ472T 4.7K 1/4W [M]
D599 B0FBAM000009 DIODE [M] R503 ERDS2TJ153T 15K 1/4W [M]
R504 ERDS2TJ153T 15K 1/4W [M]
SWITCHE R505 ERDS2TJ153T 15K 1/4W [M]
R506 ERDS2TJ153T 15K 1/4W [M]
S500 K0AFZA000005 VOLTAGE SELECTOR [M] R507 ERDS2TJ392T 3.9K 1/4W [M]
R508 ERDS2TJ392T 3.9K 1/4W [M]
CONNECTORS R509 ERDS2TJ472T 4.7K 1/4W [M]
R510 ERDS2TJ472T 4.7K 1/4W [M]
CN501 K1FB125B0095 SYSTEM CONNECTOR [M] R511 ERDS2TJ153T 15K 1/4W [M]
CN502 K1KB07B00020 7P CONNECTOR [M] R512 ERDS2TJ153T 15K 1/4W [M]

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Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks
R513 ERDS2TJ563T 56K 1/4W [M] C508 ECBT1H180JC5 18P 50V [M]
R514 ERDS2TJ563T 56K 1/4W [M] C509 ECBT1H220JC5 22P 50V [M]
R515 ERDS2TJ563T 56K 1/4W [M] C510 ECBT1H220JC5 22P 50V [M]
R516 ERDS2TJ563T 56K 1/4W [M] C511 ECBT1H220JC5 22P 50V [M]
R517 ERDS2TJ563T 56K 1/4W [M] C512 ECBT1H220JC5 22P 50V [M]
R518 ERDS2TJ563T 56K 1/4W [M] C513 F1D1H473A012 0.047 50V [M]
R519 ERDS2TJ824T 820K 1/4W [M] C514 ECEA0JKA101B 100 6.3V [M]
R520 ERDS2TJ223T 22K 1/4W [M] C515 F1B2H103A060 0.01 500V [M]
R521 ERDS2TJ103T 10K 1/4W [M] C516 F1B2H103A060 0.01 500V [M]
R522 ERDS2TJ273T 27K 1/4W [M] C517 ECBT1C103NS5 0.01 16V [M]
R523 ERDS2TJ124T 120K 1/4W [M] C518 F1D1H473A012 0.047 50V [M]
R524 ERDS2TJ124T 120K 1/4W [M] C519 F1D1H473A012 0.047 50V [M]
R525 ERDS2TJ154T 150K 1/4W [M] C520 F1D1H473A012 0.047 50V [M]
R526 ERDS2TJ124T 120K 1/4W [M] C521 F1D1H473A012 0.047 50V [M]
R527 ERDS2TJ124T 120K 1/4W [M] C522 F1D1H473A012 0.047 50V [M]
R528 ERDS2TJ154T 150K 1/4W [M] C523 F1D1H473A012 0.047 50V [M]
R529 ERDS2TJ223T 22K 1/4W [M] C529 F1D1H1040002 0.1 50V [M]
R530 ERD25FVJ1R0T 1 1/4W [M] C530 ECBT1H102KB5 1000P 50V [M]
R531 ERD25FVJ1R0T 1 1/4W [M] C531 ECBT1H102KB5 1000P 50V [M]
R532 ERDS2TJ472T 4.7K 1/4W [M] C532 ECBT1H102KB5 1000P 50V [M]
R533 ERDS1FVJ100T 10 1/2W [M] C533 ECBT1H102KB5 1000P 50V [M]
R534 ERDS1FVJ100T 10 1/2W [M] C534 ECA1HM330B 33 50V [M]
R535 ERDS1FVJ100T 10 1/2W [M] C543 ECBT1H102KB5 1000P 50V [M]
R536 ERDS1FVJ100T 10 1/2W [M] C544 ECA1HM101B 100 50V [M]
R537 ERDS1FVJ100T 10 1/2W [M] C545 F1D1H1040002 0.1 50V [M]
R538 ERDS1FVJ100T 10 1/2W [M] C546 ECA1SM332C5 3300 100V [M]
R545 ERDS2TJ224T 220K 1/4W [M] C547 ECA1SM472C5 4700 100V [M]
R546 ERDS2TJ102T 1K 1/4W [M] C548 ECA1SM472C5 4700 100V [M]
R547 ERDS2TJ394T 390K 1/4W [M] C549 ECA1SM332C5 3300 100V [M]
R548 ERDS2TJ334T 330K 1/4W [M] C550 ECBT1C103NS5 0.01 16V [M]
R549 ERDS2TJ392T 3.9K 1/4W [M] C551 ECBT1H103KB5 0.01 50V [M]
R558 ERDS2TJ104T 100K 1/4W [M] C553 ECQE2104KF3 0.1 250V [M]
R559 ERDS2TJ103T 10K 1/4W [M] C554 ECQE1104KF3 0.1 100V [M]
R560 ERDS2TJ151T 150 1/4W [M] C555 ECEA1VKA4R7B 4.7 35V [M]
R561 ERDS1FVJ392T 3.9K 1/2W [M] C556 ECBT1H103KB5 0.01 50V [M]
R562 ERDS2TJ472T 4.7K 1/4W [M] C557 ECEA1AKA101B 100 10V [M]
R563 ERDS1FVJ102T 1K 1/2W [M] C558 ECA1EM102B 1000 25V [M]
R564 ERDS2TJ224T 220K 1/4W [M] C559 ECBT1H103KB5 0.01 50V [M]
R565 ERDS1FVJ392T 3.9K 1/2W [M] C560 ECA1HM100B 10 50V [M]
R567 ERDS1FVJ152T 1.5K 1/2W [M] C569 F1D1H473A012 0.047 50V [M]
R568 ERDS2TJ151T 150 1/4W [M] C570 ECA1EM331B 330 25V [M]
R569 ERDS1FVJ182T 1.8K 1/2W [M] C571 ECA1EM102B 1000 25V [M]
R570 ERDS2TJ103T 10K 1/4W [M] C572 ECA1HM101B 100 50V [M]
R571 ERDS1FVJ182T 1.8K 1/2W [M] C573 ECBT1H102KB5 1000P 50V [M]
R577 ERDS2TJ152T 1.5K 1/4W [M] C574 ECBT1H103KB5 0.01 50V [M]
R578 ERDS2TJ103T 10K 1/4W [M] C575 ECBT1H103KB5 0.01 50V [M]
R579 ERDS2TJ332T 3.3K 1/4W [M] C576 F2J1H100A048 10P 50V [M]
R580 ERDS2TJ220T 22 1/4W [M] C577 ECEA1CKA100B 10 16V [M]
R581 ERDS2TJ682T 6.8K 1/4W [M] C578 ECBT1H103KB5 0.01 50V [M]
R582 ERDS2TJ224T 220K 1/4W [M] C579 ECBT1H103KB5 0.01 50V [M]
R583 ERDS2TJ101T 100 1/4W [M] C580 ECEA1HKA2R2B 2.2 50V [M]
R584 ERDS2TJ473T 47K 1/4W [M] C581 ECBT1H103KB5 0.01 50V [M]
R587 ERDS2TJ272T 2.7K 1/4W [M] C647 ECA0JM471B 470 6.3V [M]
R588 ERDS2TJ824T 820K 1/4W [M]
R589 ERDS2TJ103T 10K 1/4W [M]
R590 ERDS2TJ102T 1K 1/4W [M]
R600 ERDS2TJ473T 47K 1/4W [M]
R601 ERDS2TJ473T 47K 1/4W [M]
R602 ERDS2TJ472T 4.7K 1/4W [M]
R603 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]

31

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 SB-WA730GCP

15.3. Packing Materials & Accessories Parts List

Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks
No. No.
PACKING MATERIALS P1 RPNX0295 POLYFOAM (ASW) [M]
P2 RPFX0071 MIRAMAT BAG [M]

15.4. Packaging

32 FLE0503/P/A/S/E/N/J

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