Yamaha YST-SW800 User manual

YST-SW800
YST-SW800
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.
IMPORTANT NOTICE
100721
SERVICE MANUAL
YST-SW800
SUBWOOFER SYSTEM
■ CONTENTS
TO SERVICE PERSONNEL . . . . . . . . . . . . . . . . . . . .1
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
REAR PANEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
DISASSEMBLY PROCEDURES . . . . . . . . . . . . . . .3–4
REPAIR PROCEDURES . . . . . . . . . . . . . . . . . . . . .5–6
ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7–8
PRINTED CIRCUIT BOARD . . . . . . . . . . . . . . . . . 9–12
BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . .13
SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . .14–15
PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16–24

YST-SW800
YST-SW800
■TO SERVICE PERSONNEL
1. Critical Components Information
Components having special characteristics are marked Z
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 ohm shunted
by 0.15µF.
AC LEAKAGE
TESTER OR
EQUIVALENT
EQUIPMENT
UNDER TEST
INSULATING
TABLE
WALL
OUTLET
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 REASON 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.
1
●Leakage current must not exceed 0.5mA.
●Be sure to test for leakage with the AC plug in both
polarities.
■SPECIFICATIONS
U . . . . . . . . . . USA model
C . . . . . .Canadian model
A . . . . . Australian model
B . . . . . . . . British model
G . . . . . European model
Type . . . . . . . . . Advanced Yamaha Active Servo Technology
Driver . . . . . . . . . . . 25 cm (9-13/16") cone woofer (JA25610)
Magnetically shielded type
Amplifier Output
U, C models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1kW
A, B, G models . . . . . . . . . . . . . . . . . . . . . . . . . . . 800W/6Ω
Input Impedance
INPUT1 (SP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4.7kΩ
INPUT2 (PJ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12kΩ
Frequency Response . . . . . . . . . . .18 Hz to 160 Hz (-10 dB)
Power Supply
U, C models . . . . . . . . . . . . . . . . . . . . . . . . .AC120V, 60 Hz
A model . . . . . . . . . . . . . . . . . . . . . . . . . . . .AC240V, 50 Hz
B, G models . . . . . . . . . . . . . . . . . . . . . . . . .AC230V, 50 Hz
Power Consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . .250W
Dimensions (W x H x D) . . . . . . . . . . . . 390 x 482 x 420 mm
(15-3/8" x 19" x 16-9/16")
Weight . . . . . . . . . . . . . . . . . . . . . . . . . . 24 kg (52 lbs. 14 oz)
Finish
All model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Black color
G model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cherry color
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . Nonskid pad x 4
* Specifications subject to change without notice.

YST-SW800
YST-SW800
■REAR PANEL
2
▼ U, C models ▼ A model ▼ B, G models

YST-SW800
YST-SW800
3
■DISASSEMBLY PROCEDURES
(Remove parts in the order as numbered.)
1. Removal of Front Panel Ass'y
Remove 4 screws ( q) and then remove the Front
Panel Ass'y in Fig. 1.
* Use an Allen wrench (3mm) to unscrew the Front
Panel Ass'y.
Fig. 2
Fig. 1
* When assembling the Rear Panel, check to ensure that
the gasket is not damaged so as to prevent air leakage
from occurring.
Fig. 3
2. Removal of Loud Speaker
a. Remove 8 screws ( w) and then remove the Base
Ass'y in Fig. 2.
b. Remove 8 screws ( e) and then remove the Loud
Speaker in Fig. 2.
3. Removal of Rear Panel Ass'y
Remove 16 screws ( r) in Fig. 3.
* Arrow marks ( ) are printed to identify the screws to be
removed.
●Installation of emblem
1. Put the emblem into the cabinet at the specified posi-
tion.
2. Place a piece of cloth/wood on top of the emblem.
3. Using a mallet, hammer the emblem in place through
the cloth/wood.
* Use special care not to cause damage to the emblem or
cabinet while hammering the emblem.
q
q
Front Panel Ass'y
Main (5) P.C.B.
w
w
w
w
e
e
Loud Speaker
Base Ass'y
r
Rear Panel Ass'y
r

YST-SW800
YST-SW800
4
420 (16-9/16") 22
(7/8")
8
(5/16")
390 (15-3/8") 390 (15-3/8")
482 (19")
390 (15-3/8")
●Installation of power switch
Rapid cures bond (such as 5 minute epoxy) is required to fix the power switch.
As shown in Fig.4, apply rapid cures bond (such as 5 minute epoxy) to the power switch (the area which
contacts the rear panel), insert it in the rear panel and make sure it is fixed.
(Inserting the power switch in the rear panel only would not be sufficient for its secure installation.)
●Precaution for installation of power cord
After connecting the power cord, be sure to apply the rapid cures bond (such as 5 minute epoxy) to the
cord stopper as shown in Fig.4,
Bond application diagram (Fig. 4)
●Dimensions
Units : mm (inch)
Apply rapid cures bond
Apply rapid cures bond between the switch and rear panel.
Glue List
Place Name
Cord stopper
5 minute epoxy or
2051(Revertex Finewaters SDN.BHD.) or
VYLOK 917DH (National Starch &
Chemical (M) SDM.BHD.)
Power switch 5 minute epoxy or Diabond 1620B
Apply rapid cures bond before installing the P.C.B.

YST-SW800
YST-SW800
It is recommended to disconnect the SW power supply section and the power amplifier because it is highly possible
that the SW power supply section has also broken down due to the overload caused by breakdown in the power
amplifier.
Repair Procedure
1) Remove CB201, CB202 and CB205. (Power (1) P.C.B.)
Then the power supply circuit and the power amplifier circuit will be disconnected.
2) Repair the power amplifier as described below. (Main (1) P.C.B.)
Replace the defective parts.
Whether the major parts are defective or not can be checked as follows.
Remove 3 screws fixing the heat sink to the rear panel and 4 screws fixing the
support P.C.B. to the rear panel.
FET (Q16~19, Q22~24):Measure the resistance value between GATE and SOURCE
to determine whether a failure exists or not.
If the measured resistance value is close to 0Ω, a failure
exists.
If the measured resistance value is close to the value of
the resistor connected between GATE and SOURCE, no
failure exists.
Remove 3 screws fixing the Main (1) P.C.B. to the support P.C.B.
TR (Q1~4): Check DIODE characteristics between BASE and EMITTER
or between BASE and COLLECTOR to determine whether
a failure exists or not.
Check the operation as follows.
a. Prepare a stabilized DC power source equipped with +30V and -30V outputs.
b. Connect +B, -B and GND output terminals of the stabilized power source to +B, -B and GND lines of the power
amplifier.
c. Connect the terminal of the oscilloscope to the circuit between qin the figure and GND.
d. Remove CB1. (Main (2) P.C.B.)
e. Connect the output of the signal generator to the circuit between the lead on the (-) side of C1 and GND.
f. Set the frequency of the signal generator to the 100Hz sine wave and the output level to the minimum level.
g. Turn on the stabilized DC power source.
h. Raise the output level of the signal generator gradually and check the output waveform on the oscilloscope.
i. If nothing abnormal is found with the waveform until the output level reaches 40Vp-p, the check result is OK.
After operation check
Connect CB1.
3) Repair the SW power supply section as follows. (Power (1) P.C.B.)
Follow the instruction described below to avoid any danger.
High voltage maintained in C209 and C210 even after the power is turned off is dangerous. It is necessary to
force this electric charge to be discharged before starting the repair work.
For such forced discharge, connect a resistance of approximately 100Ω/5W to each of both terminals of the
capacitor. Then check to make sure that the voltage between the capacitor terminals is 0V.
Replace the defective parts.
Whether the major parts are defective or not can be checked as follows.
TR (Q202~205): It is highly possible that a failure occurs due to a short
between COLLECTOR and EMITTER.
R216, R217: It is highly possible that a failure occurs due to an open
circuit.
■REPAIR PROCEDURES
5
GDS
BCE
BCE
BCE
FET
TR
TR

YST-SW800
YST-SW800
Check the operation and make adjustment as follows.
a. Connect CB205.
b. Connect the probe of the oscilloscope between TP201
and TP202.
c. Turn on the power switch and the STANDBY/ON switch
on the front panel.
d. Check the waveform on the oscilloscope and adjust
VR201 so that a = b is obtained.
Permissible range: a/b = 1.0 ±0.1
CAUTION
Electric potential is always applied to the ground side of the oscilloscope.
Be careful so that no other part comes in contact with it.
Caution for operation check of the SW power supply section and the power amplifier
As a high voltage is applied to the SW power supply section and the power amplifier, be careful not
to receive an electric shock.
V : 50V/div H : 10 µsec/div
AC range 1 : 1 probe
0V
a
b
280Vp-p
Power (1) P.C.B
Q18 Q16 Q22 Q24 Q39 Q25 Q23 Q17 Q19
– B
GND
+ B
Main (1) P.C.B
Main (2) P.C.B
q
6

YST-SW800
YST-SW800
7
■ADJUSTMENTS
●Idling Adjustment
To stabilize operation of the amplifier, turn ON the
power with no input signal and wait for 1 or 2 minutes
in non loaded condition before the adjustment.
Adjust VR1 so that the voltage between terminals
TP1 and TP2 is DC 50mV to 250mV.
Point A(Cathode of D27)
V : 50V/div H : 2 msec/div
DC range 1 : 1 probe
0V
Point B(Anode of D24)
V : 50V/div H : 2 msec/div
DC range 1 : 1 probe
0V
● Confirmation of Power Amp 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.
Devices required
Signal generator (100Hz sine wave)
8Ωor 6Ωload resistor
Oscilloscope (dual trace type)
Connection
1) Connect the output signal from the signal generator
to the input terminal of YST-SW800.
2) Disconnect the connector terminal connected to the
speaker unit and reconnect it to the load resistor.
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.
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.
Setting
1) Set the signal generator to the sine wave, 100Hz and
minimum output level settings.
2) Set the volume of YST-SW800 to the minimum
position.
3) Turn on the power to YST-SW800.
4) Adjust the output level of the signal generator and the
volume of YST-SW800 so that the output level
observed at oscilloscope CH2 is 70Vp-p.
Waveform observation
With the settings made as described above, observe
the waveform obtained at CH1 for judgment.
Normal
Abnormal
+B or GND level
Becomes constant
Abnormal
-B or GND level
Becomes constant
●Confirmation of AUTO STANDBY operation
Setting
1) Turn off the power switch.
2) In order to shorten the time required for operation
check; connect a 10kΩresistor at both ends of R162
on the MAIN (2) P.C.B.
3) Connect the output signal from the signal generator
to the L/MONO terminal of YST-SW800.
4) Set the signal generator for the sine wave of 100Hz,
8mV.
5) Turn on the power switch.
Confirmation
1) Set the AUTO STANDBY switch to the LOW position.
2) Turn on the STANDBY/ON switch.
The display LED lights up (green) and its color
changes to red after 5 to 10 seconds.
3) Turn off the STANDBY/ON switch.
The display LED goes off.
4) Set the AUTO STANDBY switch to the HIGH position.
5) Turn on the STANDBY/ON switch.
The display LED lights up (green) and its color
remains unchanged even after time have elapsed.
6) Turn off the STANDBY/ON switch.
The display LED goes off.
After confirmation
1) Turn off the power switch.
2) Disconnect the 10kΩresistor connected to both ends
of R162.

YST-SW800
YST-SW800
8
●Schematic Diagram
●Test Points
Q18 Q16 Q22 Q24 Q39 Q25 Q23 Q17 Q19
–B
GND
+ B
Main (1) P.C.B
DC 50mV to 250mV
Point A Point B
IDLING CURRENT ADJ.
DC 50mV to 250mV
A
B
RE
WH

ABCDE
1
2
3
4
5
6
7
YST-SW800
■PRINTED CIRCUIT BOARD (Foil side)
9
81
RE
BL
RE
TO : POWER (1)
#201
BE
BL
BE
TO : POWER (1)
#202
BA
Q19 Q17 Q23 Q25 Q39 Q24 Q22 Q16 Q18
MAIN ( 1 ) P. C. B.
–12
+12
FROM :MAIN (2)
–B1
E
+B1
FROM :MAIN (2)
FROM :MAIN (2)
DR+
OUT
DR–
AYST
+V1
RE
WH
TO : SPEAKER
IDLING CURRENT ADJ.
DC 50mV to 250mV
IDLING TEST POINT

ABCDE
1
2
3
4
5
6
7
YST-SW800
■PRINTED CIRCUIT BOARD (Foil side)
10
819 1
91
91
MAIN ( 2 ) P. C. B.
+B1
E
—B1
TO : MAIN (1)
#10
W10
FROM : MAIN (4)
MA1
E
TOVL
+12
—12
LIM
MA2
FROM : MAIN (5)
TVOL
E
MAIN
+V2
+12
—12
PWS
VCC
+12
—12
TO : MAIN (1)
#12
W12
FROM : MAIN (4)
SWL
SWH2
SWH1
SO
TO : POWER (1)
#2
W2
VCC
+V1
E
DR+
OUT
DR—
AYST
+V1
TO : MAIN (1)
#11
W11

ABCDE
1
2
3
4
5
6
7
YST-SW800
■PRINTED CIRCUIT BOARD (Foil side)
11
81
1
9
MAIN ( 4 ) P. C. B.
BASS PHASE AUTO
STANDBY INPUT 2
B, G only
RL+––+
OUTPUT
INPUT 1
MA2
LIM
–12
+12
TOVL
E
MA1
TO : MAIN (2)
#1
W1
SWL SWH2 SWH1 SO
TO : MAIN (3)
#4
W4
19
VCC PWS –12 +12 +V2 MAIN E TOVL
FROM :MAIN (2)
VOLUMEHIGH
CUT
STANDBY/
ON
MAIN ( 5 ) P. C. B.
OR GY
TO : POWER (1)
POWER ( 2 ) P. C. B.
POWER

ABCDE
1
2
3
4
5
6
7
YST-SW800
■PRINTED CIRCUIT BOARD (Foil side)
12
TO : POWER (2)
OR GY
FROM :POWER CORD
–B1
E
+B1
FROM :MAIN (2)
RE BL RE BE BL BE
FROM :MAIN (1)
POWER ( 1 ) P. C.B.
C
D
J, U, C only
A, B, G only
A, B, G only
Point C(Pin 1 of CB201)
V : 50V/div H : 10 µsec/div
DC range 1 : 1 probe
0V
Point D(Pin 1 of CB202)
V : 10V/div H : 10 µsec/div
DC range 1 : 1 probe
0V

ABCDE
1
2
3
4
5
6
7
YST-SW800
IC11A IC11B IC7A
AUTO STANDBY
SW3
AUTO POWER
ON/OFF CIRCUIT
VR3
VOLUME
L.P.F.
6dB/oct
B.P.F
Q33—36
L.P.F.
12dB/oct
361 576
8IC7B
IC3
Q26, 27
42
D36
D40
D43
D39
Q37
2
HIGH CUT
VR2
PROTECTION
H/L
OFF
PWR
R162
C84
TIMER
IC5
MUSIC
SENSOR
IC4
8
4
6
3
7
Q41
PWR
REGULATOR
IC202
Q201
L
R
+
–
–
+
INPUT 1
L
R
INPUT 2
L
R
+
–
–
+
OUTPUT
IC6A
4
32
SW2
PHASE
SELECT
IC6B
L.P.F.
12dB/oct
68
BASS
SELECT
SW4
+
–
PRE DRIVE
Q5—12 POWER DRIVE
Q39, 3A/C
Q16—19
A.N.I.C
LIMITER
RY3
IC1, 2
Q32
D32, 33, 35
Q28—31
D28—31
0.1
SPEAKER
Q1C, 2C, 4A
Q20, 22, 24, 40
Q1A, 2A, 4C
Q15, 21, 23, 25
–B
+B
H.P.F.
12dB/oct
++
+12
–12
REGULATOR
POWER SUPPLY
IC8
IC9
POWER
SW201
+B
–B
POWER SUPPLY
STANDBY/ON
SW1
SUB
POWER SUPPLY
D203
RY201
T201
+
D48
D47
D49
D50 F201
L201
SWITCHING
POWER SUPPLY
Q202—207
D201, 202
D205—209
T202
16
15
14
13
12
11
7
8
5
4
2
1
6
3
See page 15
See page 14
■BLOCK DIAGRAM
13

ABCDEFGH
1
2
3
4
5
6
IJK
7
8
YST-SW800
■SCHEMATIC DIAGRAM
V O1
2–Vm
1
3+Vm
1
4V
EE
5+Vm
2
6–Vm
2
7V
O2
8V
CC
9
V CC
1
1
–+
–+
2
IC1, 2, 4, 6, 7 : µPC4570HA
Dual OP-Amp
IC5 : M51848L
CR Timer
* All voltage are measured with a 10MΩ/V DC electric volt meter.
* Components having special characteristics are marked Zand
must be replaced with parts having specifications equal to those
originally installed.
* Schematic diagram is subject to change without notice.
2SK304 (E) NJM4558L
µPC1237HA
M51848L
µPC4570HA
1
9
1SS133
S2L20U
EL02Z
1SR139-400
MTZJ2.0B
MTZJ12.0B
MTZJ24.0B
Anode
Cathode
B
C
E
2SA970 (GR, BL)
2SA1015 (O, Y)
2SA1689 (E, F)
2SC1815 (Y, GR)
2SC2240 (GR, BL)
2SC4449 (E, F)
2SC2878 (A, B)
D
GS
PIN CONNECTION DIAGRAM OFTRANSISTORS, DIODES AND ICS.
14
L.P.F.
L.P.F.
L.P.F.
H.P.F.
B.P.F.
LIMITER
PRE DRIVE POWER DRIVE
PROTECTION
POWER SUPPLY
A.N.I.C
AUTO POWER ON/OFF
CIRCUIT
0
00
11.8
8.6
-4.4
11.8 7.9
8.5
0
0
4.1
0
0
0.7
0
0
0
-12.0
0
0
0
-12.0 0
0
0
11.8
0
01.8 0
0
0.6
7.8
7.2
00
0
-12.0
0
0
0
11.8
0
3.9
7.8
0
3.9
6.9
0
0
7.5
0
1.4 6.5 7.8 5.2 7.7 7.7 7.8
6.5
5.9
0
0
0
11.8 0
0
-0.3
-0.3
-12.0 -0.4 0
0
0
-12.0
0
0
0
0
11.8 0
0
-1.5
000
0.2 -0.1
-0.3 0.2
-12.0 11.8
0
0
0
0
00-112 -111
-111 -111
-112 -111
-111 -110
-3.4
-111
-111 -111
0.2 0.2
0.7
0.7
110
112
112
111
110 110
111
3.4
-2.6
-3.4
3.4
3.4
2.9
6.0
112
111
5.5
2.9
5.5
2.3
2.3 0.1
2.3
4.7
2.3
111 111 111
110
110
111
111 111
4.7
4.7
111
0
0
111
0.1
0.1
0
-4.3
-4.9
-2.0
-0.1
-2.1
-2.1
-111
-5.2
-2.7
-2.7
-5.8
-111
-3.2
-111
-110 -110
-111
-111
-111
-110
-111
-4.3
-4.3 -4.3
-111
3.1 2.1 0.8
0
2.0
0 0
6.6
6.0
0.8
11.8
6.0
IDLING CURRENT ADJ.
DC 50mV to 250mV
A
B
0.7
-110
0
0
0.1
2.9
111
5.1
5.1 5.1 111
4.7
4.7
110
0.1
110
4.7
4.7
4.7
4.7
111
4.7
4.7
4.7 0
111
-2.7
-4.9
-5.2
-4.9
-110 -110
-4.3
-4.3 -4.3
-4.3
-4.3 0
0.1
-4.3
0
-4.3
-111
112
-0.8 -1.5 -0.8 -1.5
112 -111
015.3 0
15.3
11.8
0
-12.0
-15.3
0
0-15.3 0
CIRCUIT CHANGES BY MARKET.
X : NOT USED
RE
WH
BCE
2SA1837
2SC4793
1
8
IC11 : NJM4558L
Dual OP-Amp
–IN
1
2
+IN
1
3
–V
CC
4
+IN
2
5
–IN
2
6
OUT
2
7
+V
CC
8
OUT
1
1
–
+
–
+
IC3 : µPC1237HA
Protector IC for Power Amplifier
1
2
534
78
6
Overload
detect
Mid-point
potential
detect
Flip flop
circuit
Vcc on
mute
AC OFF
detect
Latch / automatic
return select
Relay
drive
circuit
GND
Vcc
GND
6
4
12 3
TRIGGER
OUT
RESET
REFERENCE
VOLTAGE
THRESHOLD
DISCHARGE
VCC
78
+
–
FLIP-
FLOP
+
–
5
RR R
2SC1846S
ECB
2SK237B
2SJ406 NJM78M12FA NJM79M12FA
1: OUTPUT
2: COMMON
3: INPUT 321
1:COMMON
2:INPUT
3:OUTPUT
321
GDS
FMU-12R
FMU-34R FMU-12S FMU-34S
Point A(Cathode of D27)
V : 50V/div H : 2 msec/div
DC range 1 : 1 probe
0V
Point B(Anode of D24)
V : 50V/div H : 2 msec/div
DC range 1 : 1 probe
0V
1
3
2
1:Cathode
2:Anode
3:Cathode
3
2
1
1
3
2
1:Anode
2:Cathode
3:Anode
3
2
1
SAME PAGE
D-3
SAME PAGE
E-7
P15
I-2
P15
I-4 P15
I-5

ABCDEFGH
1
2
3
4
5
6
IJKL
7
8
YST-SW800
■SCHEMATIC DIAGRAM
* All voltage are measured with a 10MΩ/V DC electric volt meter.
* Components having special characteristics are marked Zand
must be replaced with parts having specifications equal to those
originally installed.
* Schematic diagram is subject to change without notice.
1SS133
1SR139-400
Anode
Cathode
B
C
E
2SC2240 (GR, BL)
2SD400 (F)
RBV-606 2SC4140
PIN CONNECTION DIAGRAM OFTRANSISTORS, DIODES AND ICS.
+
–
BCE
2SC4163S1NB20
+–
123
1:OUTPUT
2:COMMON
3:INPUT
NJM78L08A
BCE
-1.3
-1.3
-1.4
-1.4
-1.4
-1.3 -1.5 -1.5
-1.3
8.8
-1.3
0.1
8.8
8.8
0.4
9.3
9.3
0.4
9.4
9.4
10.2
10.2
9.3
-18.1
10.2
-0.5
-0.5
-0.5
-1.5 0.4
-0.6
-0.5
-0.5
-0.5
5.9
6.0
0
12.1
11.9
11.9 7.8
0
1.2
0
0.7
1.2
C
D
AC 12.8V
CIRCUIT CHANGES BY MARKET.
X : NOT USED
O : USED
TM1661S-L
Point C(Pin 1 of CB201)
V : 50V/div H : 10 µsec/div
DC range 1 : 1 probe
0V
Point D(Pin 1 of CB202)
V : 10V/div H : 10 µsec/div
DC range 1 : 1 probe
0V
T1
T2
G
T1T2 G
15
P14
D-6
P14
H-6
P14
I-6

YST-SW800
YST-SW800
16
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
Note) Those parts marked with “#” are not included in the P.C.B. ass'y.
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.WW : WIRE WOUND RESISTOR
SCR.BND.HD : BIND HEAD B-TITE SCREW
SCR.BW.HD : BW HEAD TAPPING SCREW
SCR.CUP : CUP TITE 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-END TUNER PACK
VR : ROTARY POTENTIOMETER
VR.MTR : POTENTIOMETER WITH MOTOR
VR.SW : POTENTIOMETER WITH ROTARY SW
VR.SLIDE : SLIDE POTENTIOMETER
VR.TRIM : TRIMMER POTENTIOMETER
■ELECTRICAL PARTS
PARTS LIST ■ WARNING
Components having special characteristics are marked Zand must be
replaced with parts having specifications equal to those originally installed.
●Carbon resistors (1/6W or 1/4W) are not included in the ELECTRICAL PARTS
List. For the part Nos. of the carbon resistors refer to the last page.

YST-SW800
YST-SW800
Schm
Ref. PART NO. Description
New Parts
*
Schm
Ref. PART NO. Description
New Parts
*
17
P.C.B. MAIN
* V5890800 P.C.B. MAIN(UCA)
* V5890900 P.C.B. MAIN(BG)
CB1 VB858600 CN.BS.PIN 7P
CB3 VB858700 CN.BS.PIN 8P
CB4 VB858300 CN.BS.PIN 4P
CB9 VB858700 CN.BS.PIN 8P
CB10 VL844700 CN.BS.PIN 3P
CB11 VB390100 CN.BS.PIN 5P
CB12 VB389800 CN.BS.PIN 2P
* C1 VT721000 C.EL 100uF16V
C2 UA653100 C.MYLAR 1000pF50V
C3 V5877800 C.EL 47uF160V
C4 V5877800 C.EL 47uF160V
C5 UA654270 C.MYLAR 0.027uF50V
C6 UA654100 C.MYLAR 0.01uF50V
C7 UA654100 C.MYLAR 0.01uF50V
C8 VT720600 C.EL 10uF16V
C9 VT727900 C.EL 47uF100V
C10 VT727900 C.EL 47uF100V
C11 VK534000 C.PP 220pF200V
C12 VK534000 C.PP 220pF200V
C13 UA655220 C.MYLAR 0.22uF50V
C14 UA655220 C.MYLAR 0.22uF50V
C15 UA654100 C.MYLAR 0.01uF50V
C16 UA654100 C.MYLAR 0.01uF50V
C17 V5058000 C.MYLAR 4.7uF250V
C18 V5058000 C.MYLAR 4.7uF250V
C19 V5058000 C.MYLAR 4.7uF250V
C20 V5058000 C.MYLAR 4.7uF250V
C21 UA654220 C.MYLAR 0.022uF50V
C22 UA654220 C.MYLAR 0.022uF50V
C23 UA652120 C.MYLAR 120pF50V
C24 UA652120 C.MYLAR 120pF50V
C27 V5877900 C.EL 100uF160V
C28 V5877900 C.EL 100uF160V
C29 UA655100 C.MYLAR 0.1uF50V
* C30 VT720900 C.EL 47uF16V
* C31 VT720900 C.EL 47uF16V
C32 UA655470 C.MYLAR 0.47uF50V
* C33 VT720600 C.EL 10uF16V
* C34 VT719700 C.EL 100uF10V
* C35 VT719800 C.EL 220uF10V
C36 UA655100 C.MYLAR 0.1uF50V
C37 UA654100 C.MYLAR 0.01uF50V
C38 UA654220 C.MYLAR 0.022uF50V
C39 UA654100 C.MYLAR 0.01uF50V
C40 UA654100 C.MYLAR 0.01uF50V
C42 V5872500 C.EL 470uF160V
C43 V5872500 C.EL 470uF160V
C44 VT724900 C.EL 10uF50V
C45 VT722300 C.EL 100uF25V
* C46 VT720600 C.EL 10uF16V
* C47 VT722300 C.EL 100uF25V
C50 FG644100 C.CE 0.01uF50V
C51 UA654470 C.MYLAR 0.047uF50V
C52 UA654470 C.MYLAR 0.047uF50V
* C53 VT720600 C.EL 10uF16V
C54 UA655470 C.MYLAR 0.47uF50V
* C56 VT720600 C.EL 10uF16V
C57 FG644100 C.CE 0.01uF50V
C58 FG613100 C.CE 1000pF50V
* C59 VT724500 C.EL 1uF50V
C60 UA654680 C.MYLAR 0.068uF50V
C61 UA655820 C.MYLAR 0.82uF50V
C62 UA655220 C.MYLAR 0.22uF50V
C63 UA655220 C.MYLAR 0.22uF50V
C64 UA655220 C.MYLAR 0.22uF50V
* C65 VT724900 C.EL 10uF50V
C66 VT724900 C.EL 10uF50V
C67 FG612220 C.CE 220pF50V
* C68 VT724800 C.EL 4.7uF50V
C69 UA654390 C.MYLAR 0.039uF50V
* C70 VT720600 C.EL 10uF16V
C71 FG612220 C.CE 220pF50V
* C72 VT721100 C.EL 220uF25V
* C73 VT721100 C.EL 220uF25V
* C75 VT720600 C.EL 10uF16V
C76 UA654820 C.MYLAR 0.082uF50V
C77 UA654390 C.MYLAR 0.039uF50V
* C78 VT719600 C.EL 47uF10V
C79 VA777700 C.CE 220pF50V(BG)
C80 VA761000 C.CE 22pF50V(BG)
C81 UA655390 C.MYLAR 0.39uF50V
C82 UA655220 C.MYLAR 0.22uF50V
C83 FG644100 C.CE 0.01uF50V
* C84 VT721200 C.EL 330uF16V
* C85 VT721100 C.EL 220uF25V
C86 UA654220 C.MYLAR 0.022uF50V
D1 iF004600 DIODE 1SS133
D2 iF004600 DIODE 1SS133
D3 iF004600 DIODE 1SS133
D4 VG435100 DIODE.ZENR MTZJ2.0B2.0V
D5 VG435100 DIODE.ZENR MTZJ2.0B2.0V
D6 VU264100 DIODE 1SR139‑400
D7 VU264100 DIODE 1SR139‑400
D8 VU264100 DIODE 1SR139‑400
D9 VU264100 DIODE 1SR139‑400
D10 VU264100 DIODE 1SR139‑400
D11 VU264100 DIODE 1SR139‑400
D12 VU264100 DIODE 1SR139‑400
D13 VU264100 DIODE 1SR139‑400
* D14 V6591600 DIODE EL02Z
* D15 V6591600 DIODE EL02Z
* D17 V6591600 DIODE EL02Z
D18 iF004600 DIODE 1SS133
D19 iF004600 DIODE 1SS133

YST-SW800
YST-SW800
Schm
Ref. PART NO. Description
New Parts
*
Schm
Ref. PART NO. Description
New Parts
*18
P.C.B. MAIN
D20 VU264100 DIODE 1SR139‑400
D21 VU264100 DIODE 1SR139‑400
D22 VU264100 DIODE 1SR139‑400
D23 VU264100 DIODE 1SR139‑400
D24 VP779200 DIODE S2L20U
D25 VP779200 DIODE S2L20U
D26 VP779200 DIODE S2L20U
D27 VP779200 DIODE S2L20U
D28 iF004600 DIODE 1SS133
D29 iF004600 DIODE 1SS133
D30 iF004600 DIODE 1SS133
D31 iF004600 DIODE 1SS133
D32 iF004600 DIODE 1SS133
D33 iF004600 DIODE 1SS133
D34 VG440200 DIODE.ZENR MTZJ12B12V
D35 iF004600 DIODE 1SS133
D36 iF004600 DIODE 1SS133
* D39 VS079300 LED SPR‑39MVW
D40 iF004600 DIODE 1SS133
D43 iF004600 DIODE 1SS133
* D44 V6591600 DIODE EL02Z
Z D47 V5877300 DIODE FMU‑34S
Z D48 V5877400 DIODE FMU‑34R
Z * D49 VN399400 DIODE FMU‑12R5A200V
Z * D50 VN399300 DIODE FMU‑12S5A200V
IC1 XB247A00 IC uPC4570HA
IC2 XB247A00 IC uPC4570HA
IC3 XF663A00 IC uPC1237HA
IC4 XB247A00 IC uPC4570HA
IC5 XP741A00 IC M51848L
IC6 XB247A00 IC uPC4570HA
IC7 XB247A00 IC uPC4570HA
IC8 XJ602A00 IC NJM78M12FA
IC9 XD343A00 IC NJM79M12FA
IC11 XM922A00 IC NJM4558L
L1 V5058100 COIL 120uH
L2 V5058100 COIL 120uH
L3 V5058100 COIL 120uH
L4 V5058100 COIL 120uH
L5 VU038200 COIL 0.95uH
PJ1 V6415800 JACK.PIN 2PRJ‑1060‑01‑0500
Q1 VQ116600 TR.PAIR 2SA1837/C4793O,Y
Q2 VQ116600 TR.PAIR 2SA1837/C4793O,Y
Q3 VQ116600 TR.PAIR 2SA1837/C4793O,Y
Q4 VQ116600 TR.PAIR 2SA1837/C4793O,Y
Q5 iA097030 TR 2SA970GR,BL
Q6 iC1815M0 TR 2SC1815Y,GR
Q7 iC1815M0 TR 2SC1815Y,GR
Q8 iA097030 TR 2SA970GR,BL
Q9 iA097030 TR 2SA970GR,BL
Q10 iA101590 TR 2SA1015O,Y
Q11 V5876800 TR 2SA1689E,F
Q12 V5876900 TR 2SC4449E,F
Q15 V5876800 TR 2SA1689E,F
# Q16 V5877200 FET 2SK2378
# Q17 V5877000 FET 2SJ406
# Q18 V5877200 FET 2SK2378
# Q19 V5877000 FET 2SJ406
Q20 iA097030 TR 2SA970GR,BL
Q21 iC224030 TR 2SC2240GR,BL
# Q22 V5877200 FET 2SK2378
# Q23 V5877000 FET 2SJ406
# Q24 V5877200 FET 2SK2378
# Q25 V5877000 FET 2SJ406
Q26 V5876900 TR 2SC4449E,F
Q27 V5876800 TR 2SA1689E,F
Q28 iA097030 TR 2SA970GR,BL
Q29 iA101590 TR 2SA1015O,Y
Q30 iC1815M0 TR 2SC1815Y,GR
Q31 iC224030 TR 2SC2240GR,BL
Q32 V3028000 FET 2SK304E
Q33 iA097030 TR 2SA970GR,BL
Q34 iA097030 TR 2SA970GR,BL
Q35 iC287820 TR 2SC2878A,B
Q36 iC287820 TR 2SC2878A,B
Q37 iC224030 TR 2SC2240GR,BL
# Q39 VC398100 TR 2SC1846S
Q40 V5876900 TR 2SC4449E,F
Q41 iC224030 TR 2SC2240GR,BL
R1 VF459100 R.MTL.FLM 2.2KΩ1/4W
R3 HV755220 R.CAR.FP 220Ω1/4W
R4 HV755560 R.CAR.FP 560Ω1/4W
R5 HV755220 R.CAR.FP 220Ω1/4W
R6 HV754330 R.CAR.FP 33Ω1/4W
R9 VH009600 R.MTL.FLM 100KΩ1/4W
R10 HV755270 R.CAR.FP 270Ω1/4W
R11 HV755330 R.CAR.FP 330Ω1/4W
R12 HV755100 R.CAR.FP 100Ω1/4W
R13 HV755100 R.CAR.FP 100Ω1/4W
R14 HV756330 R.CAR.FP 3.3KΩ1/4W
R15 HV755270 R.CAR.FP 270Ω1/4W
R20 HV756470 R.CAR.FP 4.7KΩ1/4W
R23 HV754100 R.CAR.FP 10Ω1/4W
R24 HV754100 R.CAR.FP 10Ω1/4W
R25 HV754100 R.CAR.FP 10Ω1/4W
R26 HV754100 R.CAR.FP 10Ω1/4W
R27 HV755820 R.CAR.FP 820Ω1/4W
R28 HV755820 R.CAR.FP 820Ω1/4W
R29 HV754150 R.CAR.FP 15Ω1/4W
R30 V5875400 R.WW 0.1Ω5W
R31 V5875400 R.WW 0.1Ω5W
R32 HV754150 R.CAR.FP 15Ω1/4W
R33 HV755820 R.CAR.FP 820Ω1/4W
R34 HV755820 R.CAR.FP 820Ω1/4W
R35 V5875400 R.WW 0.1Ω5W
R36 V5875400 R.WW 0.1Ω5W
Note) Those parts marked with “#” are not included in the P.C.B. ass'y.

YST-SW800
YST-SW800
Schm
Ref. PART NO. Description
New Parts
*
Schm
Ref. PART NO. Description
New Parts
*
19
P.C.B. MAIN & POWER
R37 HL223100 R.MTL.OXD 1Ω2W
R38 HL223100 R.MTL.OXD 1Ω2W
R39 HL223100 R.MTL.OXD 1Ω2W
R40 HL223100 R.MTL.OXD 1Ω2W
R41 HV754220 R.CAR.FP 22Ω1/4W
R42 HV754220 R.CAR.FP 22Ω1/4W
R47 HV754100 R.CAR.FP 10Ω1/4W
R54 HV756390 R.CAR.FP 3.9KΩ1/4W
R55 HV755470 R.CAR.FP 470Ω1/4W
R56 HV755470 R.CAR.FP 470Ω1/4W
R57 HV754100 R.CAR.FP 10Ω1/4W
R58 HV754100 R.CAR.FP 10Ω1/4W
R59 HV754100 R.CAR.FP 10Ω1/4W
R60 HV754100 R.CAR.FP 10Ω1/4W
R61 HV755820 R.CAR.FP 820Ω1/4W
R63 HV755100 R.CAR.FP 100Ω1/4W
R64 HV755100 R.CAR.FP 100Ω1/4W
R65 HV756120 R.CAR.FP 1.2KΩ1/4W
R71 HV754680 R.CAR.FP 68Ω1/4W
R73 HV755820 R.CAR.FP 820Ω1/4W
R74 HV755820 R.CAR.FP 820Ω1/4W
R75 HV755820 R.CAR.FP 820Ω1/4W
R81 VH007200 R.MTL.FLM 10KΩ1/4W
R82 VH007900 R.MTL.FLM 20KΩ1/4W
R83 VH007200 R.MTL.FLM 10KΩ1/4W
R84 VH007200 R.MTL.FLM 10KΩ1/4W
* R85 HL215150 R.MTL.OXD 150Ω1W
R97 V6146800 R.WW 0.22Ω+0.22Ω
R98 HV753100 R.CAR.FP 1Ω1/4W
R99 HV753100 R.CAR.FP 1Ω1/4W
R105 HV756220 R.CAR.FP 2.2KΩ1/4W
R106 HV756220 R.CAR.FP 2.2KΩ1/4W
R110 HV756470 R.CAR.FP 4.7KΩ1/4W
R111 HV756470 R.CAR.FP 4.7KΩ1/4W
R131 HV755470 R.CAR.FP 470Ω1/4W
R132 HV755470 R.CAR.FP 470Ω1/4W
R163 HV755100 R.CAR.FP 100Ω1/4W
R164 HV755100 R.CAR.FP 100Ω1/4W
R171 HV753470 R.CAR.FP 4.7Ω1/4W
Z RY3 V5876700 RELAY DCSDT‑S‑112DMR
ST1 BB071360 SCR.TERM 8.3x13
SW1 VS066500 SW.PUSH SPPH13‑W
SW2 V5178000 SW.SLIDE SSSF12‑P06NO
SW3 V5178100 SW.SLIDE SSSU123‑S09NO
SW4 V5178000 SW.SLIDE SSSF12‑P06NO
TE3 V4811400 TERM.SP 8P(BG)
TE3 VV003100 TERM.SP 8P(UCA)
TP1 VT969000 PIN.TEST IRS‑2049
TP2 VT969000 PIN.TEST IRS‑2049
VR1 VJ692800 VR.TRIM B470Ω
VR2 VV954800 VR 10KΩ
VR3 VV954700 VR A5KΩ
BB070700 GND.MTL
VN774800 GND.WSHR MEP1866#11102
* V6667500 HEAT.SINK OSH‑1035‑WPL
EG330050 SCR.BND.HD 3x8FCRM3‑BL
* V5890500 P.C.B. POWER(UC)
* V5890600 P.C.B. POWER(A)
* V5890700 P.C.B. POWER(BG)
CB201 LB932040 CN.BS.PIN 4P
CB202 LB932030 CN.BS.PIN 3P
* CB203 V6577400 HOLDER.FUS FUC‑04(UC)
CB203 VT658200 HOLDER.FUS PC‑FH1(ABG)
* CB204 V6577400 HOLDER.FUS FUC‑04(UC)
CB204 VT658200 HOLDER.FUS PC‑FH1(ABG)
CB205 VB389900 CN.BS.PIN 3P
C201 V5877600 C.MYLAR 0.47uF250V(UC)
C201 V5900200 C.MYLAR 1uF250V(ABG)
* C202 VY675100 C.CE.SAFTY 4700pF250V(ABG)
* C203 VY675100 C.CE.SAFTY 4700pF250V(ABG)
C204 V6146600 C.CE.SAFTY 2200pF250V
C205 V6146600 C.CE.SAFTY 2200pF250V
C206 V5877600 C.MYLAR 0.47uF250V(ABG)
C206 V5877700 C.MYLAR 0.22uF250V(UC)
C207 VS741700 C.CE.SAFTY 0.01uF275V
* C208 VT721100 C.EL 220uF25V
* C209 V5873400 C.EL 1800uF200V(UC)
* C209 V5873800 C.EL 1200uF250V(ABG)
* C210 V5873400 C.EL 1800uF200V(UC)
* C210 V5873800 C.EL 1200uF250V(ABG)
* C211 VT722700 C.EL 1000uF25V
C212 VT718300 C.EL 100uF6.3V
C213 VT718300 C.EL 100uF6.3V
C214 V5878200 C.PP 1500pF630V
C215 V5878200 C.PP 1500pF630V
* C216 V5900300 C.MYLAR 2.2uF250V
* C217 VT720600 C.EL 10uF16V
C218 UA654270 C.MYLAR 0.027uF50V
C219 UA654270 C.MYLAR 0.027uF50V
C220 UA655150 C.MYLAR 0.15uF50V
C221 UA655150 C.MYLAR 0.15uF50V
Z D201 VN932100 DIODE RBV‑606
D202 VU264100 DIODE 1SR139‑400
Z D203 VR253700 DIODE.BRG S1NB201.0A200V
D204 iF004600 DIODE 1SS133
* D205 VN774600 THYRISTOR TM1661S‑L16.00A
D206 VU264100 DIODE 1SR139‑400
D207 VU264100 DIODE 1SR139‑400
D208 VU264100 DIODE 1SR139‑400
D209 VU264100 DIODE 1SR139‑400
Z F201 KB001540 FUSE 12A250V(UC)
Z F201 KB001890 FUSE T6.3A250V(ABG)
IC202 iG160100 IC NJM78L08A8V