Yamaha YST-RSW300 User manual
■CONTENTS
TO SERVICE PERSONNEL .......................................... 2
REAR PANELS .......................................................... 3–4
SPECIFICATIONS...................................................... 4–5
INTERNAL VIEW ........................................................... 5
DISASSEMBLY PROCEDURES ............................... 6–7
CHECKS AND ADJUSTMENTS................................ 8–9
BLOCK DIAGRAM ....................................................... 10
PRINTED CIRCUIT BOARDS................................ 11–12
SCHEMATIC DIAGRAM .............................................. 13
REPLACEMENT PARTS LIST .............................. 15–19
IMPORTANT NOTICE
This manual has been provided for the use of authorized YAMAHA Retailers and their service personnel.
It has been assumed that basic service procedures inherent to the industry, and more specifically YAMAHA Products, are already known and understood by the users,
and have therefore not been restated.
WARNING: Failure to follow appropriate service and safety procedures when servicing this product may result in personal injury, destruction of expensive
components, and failure of the product to perform as specified. For these reasons, we advise all YAMAHA product owners that any service required
should be performed by an authorized YAMAHA Retailer or the appointed service representative.
IMPORTANT: The presentation or sale of this manual to any individual or firm does not constitute authorization, certification or recognition of any applicable
technical capabilities, or establish a principle-agent relationship of any form.
The data provided is believed to be accurate and applicable to the unit(s) indicated on the cover. The research, engineering, and service departments of YAMAHA are
continually striving to improve YAMAHA products. Modifications are, therefore, inevitable and specifications are subject to change without notice or obligation to
retrofit. Should any discrepancy appear to exist, please contact the distributor's Service Division.
WARNING: Static discharges can destroy expensive components. Discharge any static electricity your body may have accumulated by grounding yourself to the
ground buss in the unit (heavy gauge black wires connect to this buss).
IMPORTANT: Turn the unit OFF during disassembly and part replacement. Recheck all work before you apply power to the unit.
P.O.Box 1, Hamamatsu, Japan
YST-RSW300
2007 All rights reserved.
This manual is copyrighted by YAMAHA and may not be copied or
redistributed either in print or electronically without permission.
Status indicator
101052
SERVICE MANUAL
SUBWOOFER SYSTEM
YST-RSW300
'07.04
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YST-RSW300
2
YST-RSW300
WALL
OUTLET EQUIPMENT
UNDER TEST
AC LEAKAGE
TESTER OR
EQUIVALENT
INSULATING
TABLE
1. Critical Components Information
Components having special characteristics are marked s
and must be replaced with parts having specifications equal
to those originally installed.
2. Leakage Current Measurement (For 120V Models Only)
When service has been completed, it is imperative to verify
that all exposed conductive surfaces are properly insulated
from supply circuits.
●Meter impedance should be equivalent to 1500 ohms shunted
by 0.15µF.
For U model
“CAUTION”
“F1: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 6A,
125V FUSE.”
For C model
CAUTION
F1: REPLACE WITH SAME TYPE 6A, 125V FUSE.
ATTENTION
F1: UTILISER UN FUSIBLE DE RECHANGE DE MÉME TYPE DE 6A, 125V.
●Leakage current must not exceed 0.5mA.
●Be sure to test for leakage with the AC plug in both polarities.
■TO SERVICE PERSONNEL
WARNING: CHEMICAL CONTENT NOTICE!
The solder used in the production of this product contains LEAD. In addition, other electrical/electronic and/or plastic (where
applicable) components may also contain traces of chemicals found by the California Health and Welfare Agency (and
possibly other entities) to cause cancer and/or birth defects or other reproductive harm.
DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REA-
SON WHATSOEVER!
Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumes or expose
eyes to solder/flux vapor!
If you come in contact with solder or components located inside the enclosure of this product, wash your hands before
handling food.
All of the P.C.B.s installed in this unit and solder joints are soldered using the lead free solder.
Among some types of lead free solder currently available, it is recommended to use one of the following types for the repair
work.
• Sn + Ag + Cu (tin + silver + copper)
• Sn + Cu (tin + copper)
• Sn + Zn + Bi (tin + zinc + bismuth)
Caution:
As the melting point temperature of the lead free solder is about 30°C to 40°C (50°F to 70°F) higher than that of the lead solder, be sure
to use a soldering iron suitable to each solder.
About lead free solder
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YST-RSW300
4
YST-RSW300
B, G models L model
■SPECIFICATIONS
Type ....... Advanced Yamaha Active Servo Technology II
Output Power (100 Hz, 5 ohms, 10% T.H.D.) ...... 250 W
Dynamic Power (5 ohms)...................................... 270 W
Input Sensitivity (50 Hz, 250 W/5 ohms, L+R)
INPUT1 (SP) .......................................................... 1.0 V
INPUT2 (PJ)......................................................... 50 mV
Input Impedance
INPUT1 (SP) ................................................ 2.2 k-ohms
INPUT2 (PJ).................................................. 12 k-ohms
Frequency Response ........................... 20 Hz to 160 Hz
Driver........................................ 25 cm (10") cone woofer,
Magnetic shielding type
Input Section
INPUT1 ............................................... Speaker terminal
INPUT2 ..................................................... RCA pin jack
Operation Section
Front panel ....................................... STANDBY/ON key
VOLUME control
HIGH CUT control
Status indicator
Rear panel .................................. POWER ON/OFF key
AUTO STANDBY (HIGH / LOW / OFF) key
PHASE (NORM / REV) key
VOLTAGE SELECTOR key (R, L models)
Power Supply
U, C models ........................................ AC 120 V, 60 Hz
R, L models ........AC 110/120/220/230-240 V, 50/60 Hz
K model ............................................... AC 220 V, 60 Hz
A model ............................................... AC 240 V, 50 Hz
B, G models ........................................ AC 230 V, 50 Hz
Power Consumption ............................................... 80 W
Standby Power Consumption
................................................. 0.5 W (Reference data)
Dimensions (W x H x D)
..... 372 x 400 x 428.2 mm (14-5/8" x 15-3/4" x 16-7/8")
Weight ............................................... 20 kg (44 lbs. 1oz.)
Finish
Cherry color .................... U, C, R, K, A, B, G, L models
Black color ...................... U, C, R, K, A, B, G, L models
Accessories ........................................... Nonskid pad x 4
* Specifications are subject to change without notice due to prod-
uct improvements.
U ........... U.S.A. model C ........... Canadian model
R ........... General model K ........... Korean model
A ........... Australian model B ........... British model
G ........... European model L ........... Singapore model
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YST-RSW300
5
YST-RSW300
•DIMENSIONS
400 (15-314")
372 (14-5/8") 428.2 (16-7/8")
372 (14-5/8")
26.6
(1-1/16")
29.6
(1-3/16")
Unit: mm (inch)
■INTERNAL VIEW
12 3
7
8A0 9
654
1
2
3
4
5
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9
0
A
MAIN (8) P.C.B.
MAIN (4) P.C.B.
MAIN (2) P.C.B.
MAIN (1) P.C.B.
MAIN (10) P.C.B.
MAIN (3) P.C.B.
MAIN (6) P.C.B.
POWER TRANSFORMER
MAIN (11) P.C.B.
(U, C, K, A, B, G models)
MAIN (7) P.C.B.
(R, L models)
MAIN (9) P.C.B.
(R, L models)
MAIN (5) P.C.B.
Advanced YST II
Advanced Yamaha Active Servo Technology II is a
unique system to let the speaker unit have a perfectly
linear motion by the speaker and amplifier combination.
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YST-RSW300
6
YST-RSW300
■DISASSEMBLY PROCEDURES
Fig. 1
1. Removal of Front Grille Ass’y
* The front grille ass’y is fixed to the cabinet with dow-
els at 5 locations.
As a flatblade screwdriver is used for removal, use
special care not to cause damage to the cabinet
ass’y.
a. Using the flatblade screwdriver inserted in the gap be-
tween the front grille ass’y and the cabinet ass’y (bot-
tom side first), push up the front grille ass’y. (Fig. 1)
b. Remove the front grille ass’y by lifting a metalblade up.
(Fig. 1)
* When installing the front grille ass’y, apply quick-dry-
ing bond or the like to dowels and then fit them into
dowel holes for secure installation. (The front grille
ass’y will come off easily if its dowels are fitted into
dowel holes without applying quickdrying bond or
the like.)
2. Removal of Driver
a. Remove 4 screws (1)and then remove the driver.
(Fig. 1)
b. Disconnect the connector connected to the terminal of
the driver. (Fig. 1)
Rubber sheet and cloth
Cabinet ass'y
Bottom side
Bottom side
Terminal
Terminal
1
Driver
Front grille ass'y
Connector
Dowels
Dowels
Metalblade
Flatblade screwdriver
(Remove parts in the order as numbered.)
Disconnect the power cable from the AC outlet.
Spread a rubber sheet and cloth, then place the main unit upside down on it.
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YST-RSW300
7
4
Knob
Front panel
Front panel
CB9
Switch cover ass'y
Knob hole
L-shaped metal part
or the like
5
Cable
Bush
When Checking the P.C.B.:
• Connect all the connectors removed during disassem-
bly back to the original positions.
• Spread cloth first and place the rear panel ass'y and
switch cover ass’y on it. (Fig. 4)
Fig. 4
4. Removal of Front Panel Ass’y
* The front panel once removed cannot be reused.
Be sure to use a new front panel for replacement.
Before installing the new front panel, be sure to remove
the double sided adhesive tape remaining from the old
front panel completely.
a. Remove 2 knobs (4). (Fig. 3)
b. Insert L-shaped metal parts or the like into the volume
knob hole and high-cut knob hole in the front panel and
pull the panel gradually away from the cabinet to re-
move it.
Fig. 3
c. Remove 2 screws (5). (Fig. 3)
d. Pull out the switch cover ass’y. (Fig. 3)
e. Remove bush. (Fig. 3)
* The bush once removed cannot be reused. Be sure
to use a new bush for replacement.
f. Remove the switch cover ass’y together with the cable/
CB9. (Fig. 3)
3. Removal of Rear Panel Ass'y
a. Remove 8 screws (2). (Fig. 2)
* Screws (2) are identified with arrow marks ( ).
b. Pull out the rear panel ass'y together with the cover.
(Fig. 2)
c. Remove bush. (Fig. 2)
* The bush once removed cannot be reused. Be sure
to use a new bush for replacement.
Fig. 2
d. Remove 2 screws (3). (Fig. 2)
* Screws (3) are identified with arrow marks ( ).
e. Remove the cover. (Fig. 2)
f. Disconnect the connectors (CB9 and CB10). (Fig. 2)
Rearpanelass'y
2
3
3
2
to CB4
Bush
Cover
to CB10
to CB9
Bottom side
Rubber sheet and cloth
Rubber sheet and cloth
Rear panel ass'y
Switch cover ass'y
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YST-RSW300
8
■CHECKS AND ADJUSTMENTS
Devices required
Signal generator
8-ohm or 6-ohm load resistor
Oscilloscope (dual trace type)
Connection
1) Connect the output signal from the signal genera-
tor to the input terminal of the main unit.
2) Disconnect the connector terminal connected to
the speaker unit and reconnect it to the load resis-
tor.
3) Connect the HOT side of the oscilloscope CH1
probe to the point A or B indicated in the figure and
the GND side to the GND of the main unit. (Fig. 1)
4) Connect the oscilloscope CH2 input to the red side
of the connector cable, which is connected with the
load resistor.
At this time, the GND terminal of CH2 must be left
unconnected.
V: 20 V/div H: 2 msec/div
DC range 1 : 1 probe
●Confirmation of power amplifier operation
For the power amplifier which has been repaired, it is absolutely necessary to confirm that a correct waveform is obtained
at points indicated by A and B in the schematic diagram according to the following procedure.
Setting
1) Set the signal generator to the sine wave, 100 Hz
and minimum output level settings.
2) Set the volume of the main unit to the minimum po-
sition.
3) Turn on the power to the main unit.
4) Adjust the output level of the signal generator and
the volume of the main unit so that the output level
observed at oscilloscope CH2 is 26 Vp-p to 28 Vp-p.
Waveform observation
With the settings made as described above, observe
the waveform obtained at CH1 for judgment.
Point A (Cathode of D29/D30)
V: 20 V/div H: 2 msec/div
DC range 1 : 1 probe
Point B (Anode of D27/D28)
●Idling adjustment
To stabilize operation of the amplifier, turn ON the power with no input signal and wait for 2 to 3 minutes in non loaded
condition before the adjustment.
Confirm that the voltage across the terminals TP1 and TP2 is 20 mV to 350 mV.
If it exceeds 350 mV, open (cut off) R136.
Attention:
If the idling current exceeds 350 mV after a power amplifier repair, check for a defective component before cutting the
resistor.
DRIVER
WOOFER
PS
AMP
PS
AMP
POWER
DRIVE
POWER
DRIVE
PS AMP
PS AMP
A
D29
D30
D29
D30
D28
D27
D28
D27
R136
TP2
DC 20 mV to 350 mV
DC 20 mV to 350 mV
B
TP1
D30
D29
D30
GND
D29
D27
D28
D27
D28
TP2
R136
TP1
B
DC 20 mV to 350 mV
A
Fig. 1
MAIN (1) P.C.B.
26-28 Vp-p
26-28 Vp-p
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YST-RSW300
9
●Confirmation of AUTO STANDBY operation setting
1) Turn off the “POWER ON/OFF”key located on the rear panel.
2) In order to shorten the time required for operation check; connect a 10 k-ohms resistor at both ends of R45 on the
MAIN (2) P.C.B.. (Fig. 2)
3) Connect the output signal from the signal generator to the INPUT 2 / L/MONO terminal of the main unit.
4) Set the signal generator for the sine wave of 100 Hz, 8 mV.
5) Turn on the “POWER ON/OFF”key located on the rear panel.
2) Turn on the “STANDBY/ON”key.
The status indicator lights up (green) and its color
changes to red after 2 to 8 seconds.
3) Turn off the “STANDBY/ON”key.
The status indicator goes off.
5) Turn on the “STANDBY/ON”key.
The status indicator lights up (green) and its color
remains unchanged even after time have elapsed.
6) Turn off the “STANDBY/ON”key.
The status indicator goes off.
Confirmation
1) Set the “AUTO STANDBY”key to the LOW posi-
tion.
4) Set the “AUTO STANDBY”key to the HIGH posi-
tion.
After confirmation
1) Turn off the “POWER ON/OFF”key.
2) Disconnect the 10 k-ohms resistor connected to both ends of R45.
R45
10 k-ohms
R45
10 k-ohms
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2
ABCDEFGH I J
1
3
4
5
7
YST-RSW300
6
10
++
PROTECTION
Q26-28
F1 RY2
RY2
R60
(U, C, K, A, B, G models)
POWER ON/OFF
SW5
SUB
POWER SUPPLY
D3 T1
(R, L models)
REGULATOR
Q5, Q8
REGULATOR
IC202
STANDBY/ON
SW4
Q13
+12
-12
IC6
IC1
REGULATOR
+B
-B
POWER SUPPLY
D25
POWER SUPPLY
D2
PROTECTION
D201
D202
D203
RG
RY1
0.1
DRIVER
WOOFER
POWER
TRANSFORMER
AC IN
STATUS
INDICATOR
-B
+B
PS AMP
PS AMP
Q22C, Q24A
Q22A, Q24C
POWER DRIVE
Q17A, Q17C
PRE DRIVE
Q3-15
+
–
A.N.I.C.
IC8
LIMITER
Q10, Q12
AUTO STANDBY CIRCUIT
C27
8
4
6
7
3
+
Q1
TIMER
IC201
MUSIC
SENSOR
IC4
OFF
OFF
LOW
HIGH
LOW
HIGH
AUTO STANDBY
SW2
INPUT 2
OUTPUT
L/
MONO
R
L
R
L
R
+
–
+
–
+
–
+
–
INPUT 1
IC11A IC11B
36
1
5
2
7NORM
REV
IC10A
5k-ohms
78
6
SW1
PHASE
SELECT
L.P.F.
6dB/oct
VR1
VOLUME
IC7A
8IC7B
4
32
6
7
L.P.F.
12dB/oct H.P.F.
12dB/oct
HIGH CUT
40-140Hz
VR2
+
C76
C77
+
+
+
C45
+
C46
C40
C41
+
+
–
Q16, Q19
Q30-33
■BLOCK DIAGRAM
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YST-RSW300
11
ABCDE FGH I J
1
2
3
4
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6
7
■PRINTED CIRCUIT BOARDS
IC10
W3
IC201
IC4
IC11
PJ1
CB9 CB3 W2 CB1
IC6 IC1
W6A1
W6A2
W6A3
IC8
CB10
CB11
IC10
W3
IC201
IC4
IC11
PJ1
MAIN (3) P.C.B.
MAIN (1) P.C.B.
MAIN (10) P.C.B.
MAIN (6)
(W6B1, W6B2, W6B3)
BE
BL
BE
MAIN (6)
(W5B1, W5B2, W5B3)
RE
BL
RE
DRIVER
WOOFER
INPUT1/OUTPUT
+RL
+ L /MONO / R OFF REVNORMHIGH
LOW
--
INPUT 2 AUTO
STANDBY PHASE
MAIN (4)
(CB4)
VCC
PWS
-12
+12
COM OUTIN IN OUTCOM
+V2
MAIN
E
PWS
TOVL
-12
+12
TOVL
E
PWS
+V1
-12
+12
TOVL
E
+V1
MAIN (2)
(W1)
E
+V1
VCC
RY-
RY+
OCD
-12
SP
E
MAIN
E
+12
RY+
SP
E
RY-
SP+
SP-
+
-
-12
+12
OCD
E
MAIN
1
1
91
18
45
8
9
19
•Semiconductor Location
Ref no.
Location
Ref no.
Location
D2 I3
D4 E3
D5 F6
D6 E5
D8 E5
D10 H6
D11 H6
D13 E5
D14 E6
D15 H6
D16 F6
D17 H5
D18 F6
D19 H6
D20 H6
D21 H6
Ref no.
Location
Ref no.
Location
Ref no.
Location
D22 F6
D23 F6
D24 F6
D25 J5
D27 G6
D28 G6
D29 G6
D30 G6
D31 G3
D32 E6
D33 E6
D34 E6
D202 H3
D203 H3
D204 H3
IC1 I3
IC4 B4
IC6 I3
IC8 E6
IC10 B2
IC11 B5
IC201 C3
Q1 C3
Q3 F6
Q4 F6
Q6 F6
Q7 F6
Q9 F6
Q10 E5
Q11 G6
Q12 E5
Q14 G6
Q15 F6
Q16 I2
Q17A E4
Q17C H4
Q19 I2
Q20 F4
Q21 G5
Q22A F5
Q22C H5
Q24A G4
Q24C F4
Q26 G3
Q27 G3
Q28 G3
Q29 F3
Q30 F3
Q31 G3
Q32 H3
Q33 F3
Ref no.
Location
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
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2
ABCDEFGH I J
1
3
4
5
7
YST-RSW300
6
12
W1
IC202
CB7 CB8
W9A
W12A
W11A
W8A
W5B3 W6B1W6B2W6B3W5B1W5B2
W16BW7BW10BW9B W15B W14B W13B W8B
W16A
W13A
CB5
W14A
W10A
W15A
W7A
CB6
CB4
W4A
IC7
W12B W11B
W4B
W8B
W9B
W5B3 W6B1W6B2W6B3W5B1W5B2
GR
MAIN (2) P.C.B.
MAIN (6) P.C.B. MAIN (6) P.C.B. MAIN (8) P.C.B.MAIN (11) P.C.B.MAIN (7) P.C.B. MAIN (9) P.C.B.
MAIN (4) P.C.B. MAIN (5) P.C.B.
MAIN (10)
(CB9)
MAIN (10)
(CB1)
MAIN (10)
(W6A1, W6A2, W6A3)
MAIN (2)
(W5A1, W5A2, W5A3)
VCC
17
PWS
-12
+12
+2V
MAIN
E
TOVL
VCC
+1V
E
VCC
PWS
LEDR
LEDG
E1
VCC
PWS
LEDR
LEDG
E1
VOLTAGE
SELECTOR
AC IN
STANDBY/ON
STATUS INDICATOR
POWER
TRANSFORMER
POWER
TRANSFORMER
VOLUMEHIGH CUT
01040Hz 140Hz
R, L modelsR, L models
R, L models
RE
BE
OR
GY
BE
WH
YE
BE BL Voltage
230-240V
220V
110V
20V
1-2, 5-6
2-3, 6-7
3-4, 7-8
4-5, 8-9
Select
BR
RE
GR
OR GY
BE
GR
BR
YE
BL
RE
WH
WH
BE
BL
RE
BE
BL
BE
R, L models U, C, K, A, B, G modelsU, C, K, A, B, G models
POWER
ON/OFF
MAIN (10)
(W6A1,W6A2, W6A3)
MAIN (2)
(W5A1,W5A2, W5A3)
RE
BL
RE
BE
BL
BE
•Semiconductor Location
Ref no.
Location
Ref no.
Location
D1 E3
D3 C2
D7 C2
D9 C2
D201 I6
IC7 F2
IC202 B2
Q2 E2
Q5 C2
Q8 C2
Q13 B2
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
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IC11
IC10
IC10
IC4
IC7
CB5
W9A
W8A
CB6
W11B W11A
W8A
CB7 CB8
IC202
W1 CB1
IC1
IC6
W6A1
W6A2
W6A3
W9A
W12A
W12B
W8B
W9B
W13A
W14A
W15A
W16A
W10A
W7A
W8B
W13B
W14B
W15B
W16B
W7B
W9B
W5B
W6B
W5B
W6B
W10B
IC7
CB4 CB9
W2 CB11
IC8 IC8
CB10
W5A1
W5A2
W5A3
IC4
W4B W4A
IC201
W3 CB3
IC11
A
1
2
3
4
5
6
7
8
9
10
BCDEFGH I JKLMN
YST-RSW300
13
★All voltages are measured with a 10MΩ/V DC electronic voltmeter.
★Components having special characteristics are marked sand must be replaced
with parts having specifications equal to those originally installed.
★Schematic diagram is subject to change without notice.
SCHEMATIC DIAGRAM
MAIN
0
00
11.9
0
00
-11.9
0
00
-11.9
0
00
11.9
0.1
0.1
0.1
0.1
-11.9
0.1
0.1
11.0
0.1
4.0
8.1
6.9 6.8
4.0 01.4 00
6.3
0
1.4
6.7
8.1
8.1
6.3
6.3
5.4
0.3
0.3
2.1
0.3
0.3
0.3
0.9
7.5 8.1
6.1 6.7
AC 26.7
00
0
0
17.5
-17.5
-17.2
0.3
0.1
6.8
6.8
6.7
6.7 5.6
6.7 6.1
0.7
0
0
0
0
054.6
-17.5
17.5
-11.9
11.9
24.7
24.4
0
0
AC
46.5
00
0.1
0.1
0.7
11.2
11.2
11.2
54.6 11.7
54.6
11.2
11.2 8.1
0
-17.3 -17.2
-16.5
-12.8 1.8
1.3
-2.6
00
0.1
0.1
0
0
1.4
1.4 1.4
0.8
0.8
0.9
0.4
AC 98.4
-67.8 67.6
0
0
0.1 0.1
0.1
0.1
0.1
0
0.1
0.1
0.1
0.1
0.1
0.1
36.1 35.8 23.7
23.7
0.1
0.1
0.1
0.1
-11.9 0.1
0.1
0.1
11.9
-67.7 -67.7
-67.1 -67.1
-66.5
-1.0
-67.0
0.2
0.8
66.9
0.8
0.1
-67.0
-67.0
0.8 66.4
66.4
67.0
67.6
67.0
1.2
0.5 0.1 0.1
0.1
-5.5
-5.5
0.1
0.1
0
5.7
-5.1
-67.6
-67.6
-67.1
-67.5
-67.8
67.6
67.3
67.0
67.3
67.6
67.3
0
00
00
-67.8 0
00
00
-67.8
0
0.5 0.1
0
1.2
67.5
67.5
-2.6
67.6
67.3
0
-67.0
-67.1
-67.1
5.7 5.3
180mm
180mm
180mm
180mm
200mm
200mm
230V-240V 1-2, 5-6
2-3, 6-7
3-4, 7-8
4-5, 8-1
220V
110V
120V
IC6:NJM78M12FA
Voltage regulator
INPUT
OUTPUT
COMMON
NJM78M12FA
1: OUT
2: COM
3: IN
IC1: NJM79M12FA
Voltage regulator
COMMON
OUTPUT
INPUT
NJM79M12FA
1: OUT
2: IN
3: COM
IC4, 7, 8, 10: µPC4570HA-A
Dual operational amplifier
V
+
OUT
1
I
I1
I
N1
V
-
I
N2
I
I2
OUT
2
V
+
123456789
++--
12
µPC4570HA-A
1
9
IC201:LB8555D
General purpose timer
LB8555D
RESET
OUTPUT
OUTPUT
RESET CONTROL VOL.
THRESHOLD
Vcc
DISCHARGE
TRIGGER
GND
DISCHARGE
GND
TRIGGER
THRESHOLD
Vcc
CONTROL
VOLTAGE
4
2
+-+-
5
6
8
R
SQ
3
1
7
1
2
3
4
8
7
6
5
1
4
8
IC11: NJM4558L
Dual operational amplifier
2, 6
3, 5
1, 7
V+
–INPUT
+INPUT
V–
OUTPUT
NJM4558L
1
8
4
8
+
A
12 8
1. A OUTPUT
2. A-INPUT
3. A+INPUT
4. V-
5. B+INPUT
6. B-INPUT
7. B OUTPUT
8. V+
- +
R
-
3 4 5 6 7
PIN CONNECTION DIAGRAM OF TRANSISTORS, DIODES AND ICS.
+
ACAC
-
D5BA20-4001 6A S1NB20 1A 200V
ECB
2SA970
2SA1015
2SA1145
2SA1837
BCE
2SC4793 2SC1815
ECB
2SC2878
2SC4449
2SC2240
2SC2705
2SC4688
BCE
NJM78L08A-T3
IC202: NJM78L08A-T3
Voltage regulator
V
IN
V
OUT
GND
3: INPUT
3
2
1
2: GND
1: OUTPUT
STD03P
12345
1SR139
Anode
Cathode
1SR400
S2L20U
EL02ZLF
MTZJ5.6B
MTZJ12C
Anode
Cathode
MTZJ24B
1SS133
1SS176
V+
R1
Q1Q2
Q8Q13
Q11
Q12 Q15
Q14
Q16
Q7
Q5
Q3Q4Q10
Q9
Q6
R2R3
R5
R6R8R9
R7
C2
C1R4R10
D
II
IN
OUT
V-
23
144
3
1
2
G/R LED (SPR-39MVWF)
1
ANODE
(Red)
ANODE
(Green)
CATHODE
2
3
321
STD03N
12345
MAIN (3)
MAIN (10)
DRIVER
WOOFER
POWER
TRANSFORMER
POWER
TRANSFORMER
AC IN
POWER
ON/OFF
VOLTAGE
SELECTOR
STANDBY/ON
OUTPUT/
INPUT 1
INPUT 2
L
R
L
R
STATUS
INDICATOR
AC IN
MAIN (1)
MAIN (9)
MAIN (6) MAIN (6)
MAIN (8)
MAIN (4)
MAIN (11)
MAIN (5)
MAIN (2)
MAIN (2)
U, C, K, A, B, G models
MAIN (7)
AUTO STANDBY
VOLUME
HIGH CUT
40 to 140Hz
PHASE
The voltages are measured
with AUTO STANDBY OFF.
OFF
LOW
HIGH
REV
NORM
AUTO STANDBY CIRCUIT
POWER
DRIVE
PRE DRIVE
LIMITER
PS AMP
PROTECTION
PROTECTION
R, L models
+
–
MUSIC SENSOR
L.P.F.
L.P.F.
H.P.F.
REGULATOR
REGULATOR
TIMER
A.N.I.C.
1
5
2
3
1
4
3
5
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
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YST-RSW300
15
YST-RSW300
■REPLACEMENT PARTS LIST
ABBREVIATIONS IN THIS LIST ARE AS FOLLOWS:
C.A.EL.CHP : CHIP ALUMI.ELECTROLYTIC CAP
C.CE : CERAMIC CAP
C.CE.ARRAY : CERAMIC CAP ARRAY
C.CE.CHP : CHIP CERAMIC CAP
C.CE.ML : MULTILAYER CERAMIC CAP
C.CE.M.CHP : CHIP MULTILAYER CERAMIC CAP
C.CE.SAFTY : RECOGNIZED CERAMIC CAP
C.CE.TUBLR : CERAMIC TUBULAR CAP
C.CE.SMI : SEMI CONDUCTIVE CERAMIC CAP
C.EL : ELECTROLYTIC CAP
C.MICA : MICA CAP
C.ML.FLM : MULTILAYER FILM CAP
C.MP : METALLIZED PAPER CAP
C.MYLAR : MYLAR FILM CAP
C.MYLAR.ML : MULTILAYER MYLAR FILM CAP
C.PAPER : PAPER CAPACITOR
C.PLS : POLYSTYRENE FILM CAP
C.POL : POLYESTER FILM CAP
C.POLY : POLYETHYLENE FILM CAP
C.PP : POLYPROPYLENE FILM CAP
C.TNTL : TANTALUM CAP
C.TNTL.CHP : CHIP TANTALUM CAP
C.TRIM : TRIMMER CAP
CN : CONNECTOR
CN.BS.PIN : CONNECTOR,BASE PIN
CN.CANNON : CONNECTOR,CANNON
CN.DIN : CONNECTOR,DIN
CN.FLAT : CONNECTOR,FLAT CABLE
CN.POST : CONNECTOR,BASE POST
COIL.MX.AM : COIL,AM MIX
COIL.AT.FM : COIL,FM ANTENNA
COIL.DT.FM : COIL,FM DETECT
COIL.MX.FM : COIL,FM MIX
COIL,OUTPT : OUTPUT COIL
DIOD.ARRAY : DIODE ARRAY
DIODE.BRG : DIODE BRIDGE
DIODE.CHP : CHIP DIODE
DIODE.VAR : VARACTOR DIODE
DIOD.Z.CHP : CHIP ZENER DIODE
DIODE.ZENR : ZENER DIODE
DSCR.CE : CERAMIC DISCRIMINATOR
FER.BEAD : FERRITE BEADS
FER.CORE : FERRITE CORE
FET.CHP : CHIP FET
FL.DSPLY : FLUORESCENT DISPLAY
FLTR.CE : CERAMIC FILTER
FLTR.COMB : COMB FILTER MODULE
FLTR.LC.RF : LC FILTER,EMI
GND.MTL : GROUND PLATE
GND.TERM : GROUND TERMINAL
HOLDER.FUS : FUSE HOLDER
IC.PRTCT : IC PROTECTOR
JUMPER.CN : JUMPER CONNECTOR
JUMPER.TST : JUMPER,TEST POINT
L.DTCT : LIGHT DETECTING MODULE
L.EMIT : LIGHT EMITTING MODULE
LED.DSPLY : LED DISPLAY
LED.INFRD : LED,INFRARED
MODUL.RF : MODULATOR,RF
PHOT.CPL : PHOTO COUPLER
PHOT.INTR : PHOTO INTERRUPTER
PHOT.RFLCT : PHOTO REFLECTOR
PIN.TEST : PIN,TEST POINT
PLST.RIVET : PLASTIC RIVET
R.ARRAY : RESISTOR ARRAY
R.CAR. : CARBON RESISTOR
R.CAR.CHP : CHIP RESISTOR
R.CAR.FP : FLAME PROOF CARBON RESISTOR
R.FUS : FUSABLE RESISTOR
R.MTL.CHP : CHIP METAL FILM RESISTOR
R.MTL.FLM : METAL FILM RESISTOR
R.MTL.OXD : METAL OXIDE FILM RESISTOR
R.MTL.PLAT : METAL PLATE RESISTOR
RSNR.CE : CERAMIC RESONATOR
RSNR.CRYS : CRYSTAL RESONATOR
R.TW.CEM : TWIN CEMENT FIXED RESISTOR
R.CEMENT : CEMENT RESISTOR
SCR.BND.HD : BIND HEAD B-TIGHT SCREW
SCR.BW.HD : BW HEAD TAPPING SCREW
SCR.CUP : CUP TIGHT SCREW
SCR.TERM : SCREW TERMINAL
SCR.TR : SCREW,TRANSISTOR
SUPRT.PCB : SUPPORT,P.C.B.
SURG.PRTCT : SURGE PROTECTOR
SW.TACT : TACT SWITCH
SW.LEAF : LEAF SWITCH
SW.LEVER : LEVER SWITCH
SW.MICRO : MICRO SWITCH
SW.PUSH : PUSH SWITCH
SW.RT.ENC : ROTARY ENCODER
SW.RT.MTR : ROTARY SWITCH WITH MOTOR
SW.RT : ROTARY SWITCH
SW.SLIDE : SLIDE SWITCH
TERM.SP : SPEAKER TERMINAL
TERM.WRAP : WRAPPING TERMINAL
THRMST.CHP : CHIP THERMISTOR
TR.CHP : CHIP TRANSISTOR
TR.DGT : DIGITAL TRANSISTOR
TR.DGT.CHP : CHIP DIGITAL TRANSISTOR
TRANS : TRANSFORMER
TRANS.PULS : PULSE TRANSFORMER
TRANS.PWR : POWER TRANSFORMER ASS’Y
TUNER.AM : TUNER PACK,AM
TUNER.FM : TUNER PACK,FM
TUNER.PK : FRONT-ENDTUNER PACK
VR : ROTARY POTENTIOMETER
VR.MTR : POTENTIOMETER WITH MOTOR
VR.SW : POTENTIOMETER WITH ROTARY SW
VR.SLIDE : SLIDE POTENTIOMETER
VR.TRIM : TRIMMER POTENTIOMETER
WARNING
●Components having special characteristics are marked sand must be replaced with parts having specifications
equal to those originally installed.
●The chip resistor is not supplied as a replacement part.
* When a chip resistor is necessary, use the following part.
AAX60720: CHIP RESISTOR SAMPLE BOOK
• ELECTRICAL COMPONENT PARTS
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
YST-RSW300
16
YST-RSW300
✻New Parts
P.C.B. MAIN
Ref.No. PartNo. Description
Markets
✻New Parts
Ref.No. PartNo. Description
Markets
* WK224400 P.C.B. MAIN UC
* WK224500 P.C.B. MAIN RL
* WK224600 P.C.B. MAIN KABG
CB1 VB389900 CN.BS.PIN 3P
CB3 VB390200 CN.BS.PIN 6P
CB4 VB390400 CN.BS.PIN 8P
CB5‑6 WC050700 CLIP.FUSE EYF‑52BCY RL
CB7‑8 WC050700 CLIP.FUSE EYF‑52BCY
CB9 VB390400 CN.BS.PIN 8P
CB10 LB932020 CN.BS.PIN 2P
CB11 VB390500 CN.BS.PIN 9P
C1 UA654470 C.MYLAR 0.047uF50VJ
C2 UA654470 C.CE 0.047uF50V
C3‑5 UR867100 C.EL 10uF50V
C6 VE326400 C.MYLAR 0.22uF50V
C7 FG612220 C.CE 220pF50V
C8 FG644100 C.CE 0.01uF50V
C9 UA654390 C.MYLAR 0.039uF50VJ
C10 FG652100 C.CE 100pF50V
C11 UR838100 C.EL 100uF16V
C12 UR867100 C.EL 10uF50V
C13 VE326400 C.MYLAR 0.22uF50V
C14 FG613100 C.CE 1000pF50V
C15 UR867100 C.EL 10uF50V
C16 FG612220 C.CE 220pF50V
C17 UR867100 C.EL 10uF50V
C18 VE326200 C.MYLAR 0.15uF50V
C19 VE327000 C.MYLAR 0.68uF50V
C20‑21 UR867100 C.EL 10uF50V
C22 VE326000 C.MYLAR 0.1uF50V
C23 UR866100 C.EL 1uF50V
C25 UR837470 C.EL 47uF16V
C26 UA654100 C.MYLAR 0.01uF50VJ
C27 UR838330 C.EL 330uF16V
C28 UR838220 C.EL 220uF16V
C29 FG644100 C.CE 0.01uF50V
sC30 V7682500
C.CE.SAFTY
1500pF250V
C31 FG644220 C.CE 0.022uF50V
sC32 V6185300
C.CE.SAFTY
0.01uF275V
C33‑34 UA655820 C.MYLAR 0.82uF50VJ
C35 FG644100 C.CE 0.01uF50V
C36 UR838100 C.EL 100uF16V
C37 UA653100 C.MYLAR 1000pF50VJ
C38 UR778470 C.EL 470uF63V RL
C39 UR897100 C.EL 10uF100V
C40‑41 UR848470 C.EL 470uF25V
C42 UR897100 C.EL 10uF100V
C44 VE326800 C.MYLAR 0.47uF50V
C45‑46 UR838100 C.EL 100uF16V
C47 UR867100 C.EL 10uF50V RL
C48 UA654270 C.MYLAR 0.027uF50VJ
C49 UR749100 C.EL 1000uF25V UCKABG
C50 UA654220 C.MYLAR 0.022uF50VJ
C51 UA653680 C.MYLAR 6800pF50VJ
C52 FG644100 C.CE 0.01uF50V
C53 UA653680 C.MYLAR 6800pF50VJ
C54 UA653220 C.MYLAR 2200pF50VJ
C55 UR867100 C.EL 10uF50V
C57 UR867100 C.EL 10uF50V
C58 UA654220 C.MYLAR 0.022uF50VJ
C60 VE326000 C.MYLAR 0.1uF50V
C61‑62 UA654220 C.MYLAR 0.022uF50VJ
C63‑64 UR877470 C.EL 47uF63V
C65‑66 UA654100 C.MYLAR 0.01uF50VJ
C67‑68 WB540200 C.POL.MTL 0.1uF250V
C69‑70 VE326300 C.MYLAR 0.18uF50V
C71‑72 V5058000 C.MYLAR 4.7uF250V
C73‑74 VE326400 C.MYLAR 0.22uF50V
C75 UR867100 C.EL 10uF50V
C76‑77 V6092500 C.EL 8200uF80V
C80‑81 UR798330 C.EL 330uF100V
C82 UR867220 C.EL 22uF50V
C83 UR838100 C.EL 100uF16V
C84 WE101700 C.PP 1000pF100V
C85‑86 UR867100 C.EL 10uF50V
C87 UR867100 C.EL 10uF50V RL
C88‑89 UR847470 C.EL 47uF25V
C90 UR838100 C.EL 100uF16V
C91 VE326000 C.MYLAR 0.1uF50V
C92 FG613100 C.CE 1000pF50V KABG
D1 VD631600 DIODE 1SS133,176
sD2‑3 VR253700 DIODE.BRG S1NB201A200V
D4‑6 VD631600 DIODE 1SS133,176
D7 VG440300
DIODE.ZENR
MTZJ12C12V RL
D8‑11 VD631600 DIODE 1SS133,176
D13‑14 VD631600 DIODE 1SS133,176
D15‑16 VU264100 DIODE 1SR139,400
D17‑18 VG437700
DIODE.ZENR
MTZJ5.6B5.6V
D19‑24 V6934100 DIODE EL02ZLF‑H5K
sD25 VQ111400 DIODE.BRG D5SBA20‑40016A
D27‑30 VP779200 DIODE S2L20U
D31 VD631600 DIODE 1SS133,176
D32 VG437700
DIODE.ZENR
MTZJ5.6B5.6V
D33 VG442500
DIODE.ZENR
MTZJ24B24V
D34 VG437700
DIODE.ZENR
MTZJ5.6B5.6V
D201 VS079300 LED RED/GREEN
D202‑203 VU264100 DIODE 1SR139,400
D204 VD631600 DIODE 1SS133,176
sF1 WG410500 FUSE 6A125V UCRL
sF1 KB001660 FUSE T1.6A250V KABG
sF2 KB001660 FUSE T1.6A250V RL
G2‑4 V7235100 CN.GND JG‑11‑T
G6 V5995800 PLATE.GND
IC1 XD343A00 IC NJM79M12FA
IC4 XB247A00 IC uPC4570HA‑A
IC6 XJ602A00 IC NJM78M12FA
IC7‑8 XB247A00 IC uPC4570HA‑A
IC10 XB247A00 IC uPC4570HA‑A
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
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YST-RSW300
17
✻New Parts
Ref.No. PartNo. Description
Markets
✻New Parts
Ref.No. PartNo. Description
Markets
P.C.B. MAIN Carbon Resistors
10mm
HJ35
1/4W Type
5mm
HF85
1/6W Type
HF45
1/4W Type
Value 1/4W Type Part No. 1/6W Type Part No.
10 kΩHF45 7100 HF45 7100
11 kΩHF45 7110 HF45 7110
12 kΩHJ35 7120 HF85 7120
13 kΩHF45 7130 HF45 7130
15 kΩHF45 7150 HF45 7150
18 kΩHF45 7180 HF45 7180
22 kΩHF45 7220 HF45 7220
24 kΩHF45 7240 HF45 7240
27 kΩHJ35 7270 HF85 7270
30 kΩHF45 7300 HF45 7300
33 kΩHF45 7330 HF45 7330
36 kΩHF45 7360 HF45 7360
39 kΩHF45 7390 HF45 7390
47 kΩHF45 7470 HF45 7470
51 kΩHF45 7510 HF45 7510
56 kΩHF45 7560 HF45 7560
62 kΩHF45 7620 HF45 7620
68 kΩHF45 7680 HF45 7680
82 kΩHF45 7820 HF45 7820
91 kΩHF45 7910 HF45 7910
100 kΩHF45 8100 HF45 8100
110 kΩHF45 8110 HF45 8110
120 kΩHF45 8120 HF45 8120
150 kΩHF45 8150 HF45 8150
180 kΩHF45 8180 HF45 8180
220 kΩHJ35 8220 HF85 8220
270 kΩHF45 8270 HF45 8270
300 kΩHF45 8300 HF45 8300
330 kΩHF45 8330 HF45 8330
390 kΩHJ35 8390 HF85 8390
470 kΩHF45 8470 HF45 8470
560 kΩHJ35 8560 HF85 8560
680 kΩHJ35 8680 HF85 8680
820 kΩHJ35 8820 HF85 8820
1.0 MΩHF45 9100 HF45 9100
1.2 MΩHJ35 9120 ❊
1.5 MΩHJ35 9150 HF85 9150
1.8 MΩHJ35 9180 HF85 9180
2.2 MΩHJ35 9220 HF85 9220
3.3 MΩHJ35 9330 HF85 9330
3.9 MΩHJ35 9390 ❊
4.7 MΩHJ35 9470 HF85 9470
Value 1/4W Type Part No. 1/6W Type Part No.
1.0 ΩHJ35 3100 HF85 3100
1.8 ΩHJ35 3180 ❊
2.2 ΩHJ35 3220 HF85 3220
3.3 ΩHJ35 3330 HF85 3330
4.7 ΩHJ35 3470 HF85 3470
5.6 ΩHJ35 3560 HF85 3560
10 ΩHF45 4100 HF45 4100
15 ΩHJ35 4150 HF85 4150
22 ΩHF45 4220 HF45 4220
27 ΩHJ35 4270 HF85 4270
33 ΩHF45 4330 HF45 4330
39 ΩHJ35 4470 HF85 4390
47 ΩHF45 4470 HF45 4470
56 ΩHF45 4560 HF45 4560
68 ΩHF45 4680 HF45 4680
75 ΩHF45 4750 HF45 4750
82 ΩHF45 4820 HF45 4820
91 ΩHF45 4910 HF45 4910
100 ΩHF45 5100 HF45 5100
110 ΩHJ35 5110 HF85 5110
120 ΩHF45 5120 HF45 5120
150 ΩHF45 5150 HF45 5150
160 ΩHJ35 5160 ❊
180 ΩHF45 5180 HF45 5180
200 ΩHF45 5200 HF45 5200
220 ΩHF45 5220 HF45 5220
270 ΩHF45 5270 HF45 5270
330 ΩHF45 5330 HF45 5330
390 ΩHF45 5390 HF45 5390
430 ΩHF45 5430 HF45 5430
470 ΩHF45 5470 HF45 5470
510 ΩHF45 5510 HF45 5510
560 ΩHF45 5560 HF45 5560
680 ΩHF45 5680 HF45 5680
820 ΩHF45 5820 HF45 5820
910 ΩHF45 5910 HF45 5910
1.0 kΩHF45 6100 HF45 6100
1.2 kΩHF45 6120 HF45 6120
1.5 kΩHF45 6150 HF45 6150
1.8 kΩHF45 6180 HF45 6180
2.0 kΩHJ35 6200 HF85 6200
2.2 kΩHF45 6220 HF45 6220
2.4 kΩHJ35 6240 HF85 6240
2.7 kΩHF45 6270 HF45 6270
3.0 kΩHF45 6300 HF45 6300
3.3 kΩHF45 6330 HF45 6330
3.6 kΩHJ35 6360 HF85 6360
3.9 kΩHF45 6390 HF45 6390
4.7 kΩHF45 6470 HF45 6470
5.1 kΩHF45 6510 HF45 6510
5.6 kΩHF45 6560 HF45 6560
6.8 kΩHF45 6680 HF45 6680
8.2 kΩHF45 6820 HF45 6820
9.1 kΩHF45 6910 HF45 6910
❊: Not available
IC11 XM922A00 IC NJM4558L
IC201 X2020A00 IC LB8555D
IC202 X4472A00 IC NJM78L08A‑T3
PJ1 V6415800 JACK.PIN 2P
PN1 WB543700 PIN WB54370L=70#18
Q1‑2 iC224030 TR 2SC2240GR,BL
Q3 iA097040 TR 2SA970GR
Q4 iC1815I0 TR 2SC1815Y
Q5 iC224030 TR 2SC2240GR,BL RL
Q6 iC1815I0 TR 2SC1815Y
Q7 iA097030 TR 2SA970GR,BL
Q8 VK801200 TR 2SC4688R,O RL
Q9‑10 iA097040 TR 2SA970GR
Q11 iA1015I0 TR 2SA1015Y
Q12 WF612700 TR 2SC2240GR
Q13 iC224030 TR 2SC2240GR,BL
Q14 VE198700 TR 2SA1145O,Y
Q15 VE198800 TR 2SC2705O,Y
Q16 iC224030 TR 2SC2240GR,BL
* Q17 WK192900 TR.PAIR STD03P/STD03N
Q19 iA097030 TR 2SA970GR,BL
Q20 V5876900 TR 2SC4449E,F
Q21 iA097030 TR 2SA970GR,BL
Q22 VQ116600 TR.PAIR 2SA1837/C4793O,Y
* Q24 WK192900 TR.PAIR STD03P/STD03N
Q26‑27 iC287820 TR 2SC2878A,B
Q28‑29 iC224030 TR 2SC2240GR,BL
Q30 iA097030 TR 2SA970GR,BL
Q31‑33 iC224030 TR 2SC2240GR,BL
R5‑11 HV756220 R.CAR.FP 2.2KΩ1/4W
R12‑13 HV756470 R.CAR.FP 4.7KΩ1/4W
R52 HB026390 R.MTL.FLM 3.9KΩ1/4W
R53‑54 HV753100 R.CAR.FP 1Ω1/4W
R57 HV755220 R.CAR.FP 220Ω1/4W
R59 HV755560 R.CAR.FP 560Ω1/4W
R60 HV753220 R.CAR.FP 2.2Ω1/4W UCKABG
R63 HV755220 R.CAR.FP 220Ω1/4W
R66 HV754330 R.CAR.FP 33Ω1/4W
R73 HB028100 R.MTL.FLM 100KΩ1/4W
R75 HV755330 R.CAR.FP 330Ω1/4W
R76 HV755220 R.CAR.FP 220Ω1/4W
R77‑78 HV753220 R.CAR.FP 2.2Ω1/4W
R82‑83 VG730500 R.MTL.OXD 0.15Ω3W
R84 HV756390 R.CAR.FP 3.9KΩ1/4W
R86 HV756120 R.CAR.FP 1.2KΩ1/4W
R88‑89 HV753100 R.CAR.FP 1Ω1/4W
R94 HV754100 R.CAR.FP 10Ω1/4W
R102‑103 HV754220 R.CAR.FP 22Ω1/4W
R104‑105 VC753800 R.MTL.OXD 1Ω2W
R106 HV753470 R.CAR.FP 4.7Ω1/4W
R107‑108 HV755220 R.CAR.FP 220Ω1/4W
* R120 VR860900 R.MTL.OXD 1.5kΩ3W
* R122 WK542600 R.WW 0.1Ω3W
R135 HV753220 R.CAR.FP 2.2Ω1/4W
R136 HV755820 R.CAR.FP 820Ω1/4W
sRY1 VU161600 RELAY DCOSA‑SS‑224DM3
sRY2 V6017400 RELAY DCSDT‑S‑112LMR2
ST1 V4040500 SCR.TERM M3
SW1 VQ545800 SW.SLIDE SSSF04
SW2 VD179500 SW.SLIDE SSSU12
SW4 VS066500 SW.PUSH SPPH13‑W
sSW5 WG803400 SW.PUSH PS4E‑A‑040‑NP
sSW6 WB493700
VOLT.SELCT
R8140246 RL
sT1 XW606A00 TRANS.PWR UC
*sT1 X8843A00 TRANS RL
sT1 XW608A00 TRANS.PWR KABG
TE1‑2 VT658100 TERM.WRAP 352‑TX119
TE3 V9065900 TERM.SP MSP‑108V‑01PBSN
TP1‑2 VT969000 PIN.TEST IRS‑2049
VR1 WC595500 VR A5KΩ
* VR2 WK126500 VR C10kΩ
* WK126700
HOLDER.LED
LDT‑142G
WE983600
SCR.BND.HD
3x8MFZN2B3
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
2
ABCDEFGH I J
1
3
4
5
7
YST-RSW300
6
18
4-21
4-11
4-37 4-38
4-32
4-37
4-32
4-33
4-34 4-31
4-33
4-4
4-3
4-11
4-36
202
25
1
5
R, L models
(5)
5
24
24
(2)
5(9)
5(11) U, C, K, A,
B, G models
(7) R, L models
5(6)
5(3)
5(10)
5(4)
5(8)
5(1)
6
3
27
27
26
2
7
11
10
15
8
12
4-19
4-18
4-20
4-32
4-35
4-35
4-35
4-23
4-35
4-32
4-8
4-35
4-35
4-22
4-32
4-32
4-5
4-29
4-19
4-16
4-19
4-19
• OVERALL ASS’Y
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
YST-RSW300
19
* 1 WK217100 CABINETASS'Y CH
* 1 WK217000 CABINETASS'Y BL
2 X4457D00 DRIVERWOOFER 25cm6Ω 2564B
3 WH695000 FRONTGRILLEASS'Y
s4‑3 V9436300 POWERCABLE 2m UC
s4‑3 WD042000 POWERCABLE 2m R
s4‑3 V8012900 POWERCABLE 2m K
s4‑3 WC883100 POWERCABLE 2m A
s4‑3 WC906500 POWERCABLE 2m B
s4‑3 V9436400 POWERCABLE 2m GL
4‑4 CB072750 CORDSTOPPER SR‑4N‑4
*s4‑5 X8219A00 POWERTRANSFORMER UC
*s4‑5 X8220A00 POWERTRANSFORMER RL
*s4‑5 X8809A00 POWERTRANSFORMER K
*s4‑5 X8727A00 POWERTRANSFORMER A
*s4‑5 X8221A00 POWERTRANSFORMER BG
4‑8 WG886600 BINDINGTIE CT‑100
* 4‑11 WJ991200 REARPANEL UC
* 4‑11 WJ991300 REARPANEL RL
* 4‑11 WJ991600 REARPANEL K
* 4‑11 WJ991400 REARPANEL A
* 4‑11 WJ991500 REARPANEL BG
4‑16 WA217100 POWERKNOB
4‑18 WB249900 COVER
4‑19 WB377300 PACKING 276x6t=1
4‑20 WB377400 PACKINGE 100x85t=2
4‑21 WC690300 BUSH
4‑22 WB279400 REARCOVER
* 4‑23 WJ951100 SUPPORTTRANSISTOR 4P
4‑29 VV849300 RADIATIONSHEET 19x24
4‑31 WE994800 BINDHEADS‑TIGHTSCREW
4x8MFZN2B3
4‑32 WE774400 BINDHEADB‑TIGHTSCREW
3x8MFZN2B3
4‑33 WE962000 BINDHEADB‑TIGHTSCREW
4x8MFZN2B3
4‑34 WF268000 BINDHEADP‑TIGHTSCREW
3x10MFZN2B3
4‑35 WF002600 PWHEADB‑TIGHTSCREW
3x8MFZN2W3
4‑36 WE983600 BINDHEADSCREW
3x8MFZN2B3
RL
4‑37 WE981100 BINDHEADP‑TIGHTSCREW
4x12MFZN2B3
4‑38 WF303900 BINDHEADBONDINGSCREW
3x6MFZN2B3
* 5 WK224400 P.C.B.ASS'Y MAIN UC
* 5 WK224500 P.C.B.ASS'Y MAIN RL
* 5 WK224600 P.C.B.ASS'Y MAIN KABG
6 V9467400 EMBLEM
* 7 WJ956100 FRONTPANEL BLACK CH
* 7 WK175600 FRONTPANEL SILVER BL
* 8 WJ955800 SWITCHCOVER
* 10 WJ981900 VOLUME/HIGHCUTKNOB BLACK CH
* 10 WK175400 VOLUME/HIGHCUTKNOB SILVER BL
* 11 WJ981600 POWERKNOB BLACK CH
* 11 WK175500 POWERKNOB SILVER BL
* 12 WK235100 PACKING 145x3t=1.0
✻New Parts
MarketsRemarksDescriptionPart No.
Ref. No.
✻New Parts
MarketsRemarksDescriptionPart No.
Ref. No.
15 WC736000 BUSH
24 WG405400 BINDHEADTAPPINGSCREW
4x35MFZN2B3
25 WF459800 BINDHEADTAPPINGSCREW#1
4x25MFZN2B3
26 WF683300 FLATHEADWOODSCREW
3.1x16MFZN2W3
27 WF268000 BINDHEADP‑TIGHTSCREW
3x10MFZN2B3
ACCESSORY
202 WB365800 NONSKIDPAD M32t24pcs/set
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
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4
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