Sony ST-SE570 User manual

SERVICE MANUAL
FM STEREO FM-AM TUNER
AEP Model
UK Model
SPECIFICATIONS
ST-SE570
Ver 1.0 2001.04
9-873-834-11 Sony Corporation
2001D0500-1 Home Audio Company
C2001.4 ShinagawaTec Service Manual Production Group
FM tunersection
Frequency range 87.5 - 108.0 MHz
(50 kHz step)
Aerial terminals 75 Ω, unbalanced
IEC-male
Intermediate frequency10.7 MHz
Sensitivity at 26 dB quieting (mono)
10.3 dBf, 0.9 µV/75 Ω
at 46 dB quieting (stereo)
38.5 dBf, 23 µV/75 Ω
Usable sensitivity (IHF)10.3 dBf, 0.9 µV/75Ω
S/N at 40 kHz deviation
74 dB (mono), 69 dB
(stereo)
Harmonic distortion 0.09% (mono),
0.18% (stereo)
Frequency response 30 Hz - 15 kHz
(+0.5/–1.0 dB)
Separation 45 dB at 1 kHz
Selectivity at 400 kHz
85 dB
at 300 kHz
70 dB
Output at 40 kHz deviation
600 mV
AM tuner section
Frequency range
MW: 522 - 1,611 kHz
(9 kHz step)
LW: 144 - 288 kHz
(1 kHz step)
Intermediate frequency450 kHz
Usable Sensitivity (with AM loop aerial)
MW: 200 µV/m
LW: 700 µV/m
Signal-to-noise ratio
MW: 54 dB
(50 mV/m, 999 kHz)
LW: 50 dB
(50 mV/m, 216 kHz)
Harmonic distortion 0.3% (50 mV/m,
400 Hz)
Selectivity 50 dB
General
Power requirements 230 V AC, 50/60 Hz
Power consumption 10 W
Dimensions 430 x 83 x 290 mm
(w/h/d)
Weight 2.5 kg
Supplied accessories
Audio cord (1)
AM loop antenna (1)
FM wire antenna (1)
EON connecting cord (1)
Design and specifications are subject to change
without notice.

2
ST-SE570
TABLE OF CONTENTS
1. GENERAL ................................................................... 3
2. DISASSEMBLY
2-1. Disassembly Flow ........................................................... 4
2-2. Case (407026) ................................................................. 4
2-3. MAIN Board ................................................................... 5
3. TEST MODE.............................................................. 6
4. ELECTRICAL ADJUSTMENTS......................... 8
5. DIAGRAMS
5-1. Note for Printed Wiring Boards and
Schematic Diagrams ....................................................... 9
5-2. Printed Wiring Boards –MAIN Section –..................... 10
5-3. Schematic Diagram –MAIN Section –.......................... 11
5-4. Printed Wiring Boards –DISPLAY Section –............... 12
5-5. Schematic Diagram –DISPLAY Section –.................... 13
5-6. IC Pin Function Description ........................................... 14
6. EXPLODED VIEWS
6-1. Case Section .................................................................... 16
6-2. Front Panel Section ......................................................... 17
6-3. Chassis Section ............................................................... 18
7. ELECTRICAL PARTS LIST ............................... 19
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0OR DOTTED
LINE WITH MARK 0ON THE SCHEMATIC DIAGRAMS
AND IN THE PARTS LIST ARE CRITICAL TO SAFE
OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-
LISHED BY SONY.

3
ST-SE570
SECTION 1
GENERAL This section is extracted from
instruction manual.
LOCATION OF CONTROLS
– Front Panel –
AUTO BETICAL SELECT qk (7, 12)
BAND qg (9, 10, 12)
CHARACTER 7(11)
DIRECT qs (9)
DISPLAY 5(10, 11, 13)
ENTER qa (9, 11, 12, 14)
EON NEWS/INFO 3(13, 14)
EON TA 2(13, 14)
FM MODE qh (9, 10)
MEMORY 4(8, 11)
MENU 0(9, 11, 14)
Numeric buttons qf (7–9)
POWER 1(7, 8, 12)
PTY qj (14, 15)
RETURN 9(9)
SHIFT qd (8, 11)
TUNE MODE 8(8, 10)
TUNING/SELECT 6(7–12, 14)
1234567890
1 2 3 4 5 7 86
90qaqsqdqfqgqhqj
qk
1FM ANTENNA terminal
2AM ANTENNA terminals
3LINE OUT jack
4EON CONTROL OUT terminal
– Rear Panel –
ANTENNA LINE OUT
EON CONTROL
FM
U
75ΩCOAXIAL
RL OUT
AM
2
134

ST-SE570
4
• This set can be disassembled in the order shown below.
2-1. DISASSEMBLY FLOW
SECTION 2
DISASSEMBLY
Note: Follow the disassembly procedure in the numerical order given.
2-2. CASE (407026)
2-2. CASE (407026)
(Page 4)
2-3. MAIN BOARD
(Page 5)
SET
1 two screws
(case 3 TP2)
2 two screws
(case 3 TP2
)
3 screw
(case 3 TP2)
4 case (407026)

ST-SE570
5
2-3. MAIN BOARD
4 MAIN board
2 connector (CNP701)
2 connector (CNP702)
2 connector (CNP952)
1 wire (flat type) (15 core
)
(CN101)
3 two screws
(BV/RING)

6
ST-SE570
NOTE : The preset data will be erased when this test mode is used.Therefore, take down the data before setting this mode and preset the data
again after completing operations in this mode.
2. DisplayTube Check and KEY Check mode
1. Turn OFF the power.
2. While pressing 1and AUTO-BETICAL SELECT together, turn ON POWER .
3. While continuously pressing 1and AUTO-BETICAL SELECT together, check the following.
Indication test pattern
The display changes every 1 sec.
4. Release 1and AUTO-BETICAL SELECT . The KEY CHECK mode will be set.
5. All key numbers will be displayed.
Key Number : 25
6. Each time the key is pressed, the key number will be counted down.
Each key will be counted only once, at the first time.
7. When all keys have been pressed, the process will end.
NOTE : As contents of the Factory Preset will be written into memory after completing this check mode, delete contents of memory
according to 4. Forced RESET.
SECTION 3
TEST MODE
1. Circuit Check Mode
Set to the reception frequency that the circuit can STEREO RDS stations. (Set the input level to above 70 dB.)
This enables circuit check to be performed in any of the reception modes-FM,AM (MW, LW). Set to a desired band before setting the test
mode.
1. Turn OFF the power.
2. While pressing 4and AUTO-BETICAL SELECT together, turn ON POWER .
• The items in the following table will be checked automatically in order every 2 seconds.
FM RDS
Display Items
Tuned
IF Frq
Sig Level
Stereo
RDS Signal
AST signal =LOW
IF COUNT OK
SI LEVELh70dB
ST signal=LOW
RDS DATA OK
DISPLAY
OK or NG
OK or NG
OK or NG
OK or NG
OK or NG
AM (MW, LW)
OK or NG
OK or NG
NG
IC201 NG, RV201 adjustments
TB101, IC201 NG
TB101 NG
TB101 NG
IC801 NG
Microcomputer version indication (1 sec) tAll light up “7F” tDot area only “60” tDot area only “7E”
Dot area only “5F” TDot area only “3D”
T
T
17F 260 37E 43D 55F

7
ST-SE570
3. Entering the Factory Preset (In case perform just to write memory of the Factory Preset.)
1. Turn OFF the power.
2. While pressing 3and AUTO-BETICAL SELECT together, turn ON POWER .
4. Forced RESET (Used to delete the contents of Factory Preset when it is written into the preset memory.)
Clears all the RAMs and sets the initial state
1. Turn OFF the power.
2. While pressing 5and AUTO-BETICAL SELECT together, turn ON POWER .
3. When “All clear”is indicated on the fluorescent display tube, it means that “Forced Reset”has been completed.
5. Language Change
1. Turn OFF the power.
2. While pressing 2, turn ON POWER .

8
ST-SE570 SECTION 4
ELECTRICAL ADJUSTMENTS
FM Signal Level Adjustment
Procedure:
1. Tune the set to 98 MHz.
2. Push the DISPLAY button for digital signal meter indication.
3. Adjust RV201 to the place where level and “70dB M” indica-
tion lights on fluorescent indicator tube.
Adjustment Location:
[MAIN BOARD] — Component Side —
FM RF signal
generator
set
FM ANTENNA
75
Ω coaxial
(TB101)
Carrier frequency : 98 MHz
Modulation : 1 kHz, 40 kHz deviation
Output level : 6.3 mV (76dB µ )
(75
Ω open)
IC201
CN101
RV201
FM SIGNAL LEVEL
Adjustment

ST-SE570
99
SECTION 5
DIAGRAMS
5-1. NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
(In addition to this, the necessary note is printed in each block)
Note on Printed Wiring Board:
•X: parts extracted from the component side.
•: Pattern from the side which enables seeing.
• Indication of transistor.
B
These are omitted.
CE
Q
Note on Schematic Diagram:
•All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
•All resistors are in Ωand 1/4W or less unless otherwise
specified.
•f: internal component.
•2: nonflammable resistor.
•C: panel designation.
•U: B+ Line.
•V: B–Line.
•H: adjustment for repair.
•Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM
∗: Can not be measured.
•VoltagesaretakenwithaVOM(Inputimpedance10MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
•Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
•Circled numbers refer to waveforms.
•Signal path.
F: FM
Note: The components identified by mark 0or dotted line
with mark 0are critical for safety.
Replace only with part number specified.
• Waveforms
– DISPLAY Board –
1IC701 qa (X2)
– MAIN Board –
2IC801 qf (OSCO)
4.3 Vp-p
238.6 ns
4.8 Vp-p
4.332 MHz
• Circuit Boards Location
MAIN board
TUNER (PACK)
TRANSFORMER board
AC SW board
DISPLAY board
ENCORDER board
SW board

ST-SE570
1010
L R
LINE OUT
18
169
E
E
E
E
(CHASSIS)
13
CNJ251
EON CONTROL
OUT
1
4
8
5
17
E
E
18
169
98
A
DISPLAY BOARD
CN702
B
DISPLAY BOARD
CN701
MAIN BOARD
75Ω
COAXIAL
AM
FM
TUNER PACK
SUPPLIED WITH
THE ASSEMBLED
BLOCK
ANTENNA
TB101
1-681-057-
11
(11)
TRANSFORMER BOARD
AC SW BOARD
POWER
1
2
1-681-061-
11
(11)
2
1
5
1
*
* NOT REPLACEABLE :
BUILT IN TRANSFORMER
POWER TRANSFORMER
2
1PC901
AC IN
BRN
BLU
1-681-062-
11
(11) 1
5
A
B
C
D
E
F
1 2 3 4 5 6 7 8 9 10
5-2. PRINTED WIRING BOARDS – MAIN Section – • See page 9 for Circuit Boards Location.
IC301 E-6
IC801 B-7
IC901 D-7
Q301 E-8
Q302 E-8
Q303 E-7
Q304 E-7
Q801 C-8
Q901 C-8
Ref. No. LocationRef. No. Location
D251 E-5
D901 E-5
D902 D-5
D903 C-5
D904 C-5
D905 C-6
D906 B-5
D907 C-7
D908 C-7
IC201 E-9
• Semiconductor Location
(Page 12) (Page 12)

ST-SE570
1111
D904
R905 R906
CN101
C351
L351
L352
C352
C951
CN951CNP951
CNP901
CNP952
R901
Q303Q301
Q304Q302
R316
C251 R251
CNJ251
D251
CN952
R909R908
C906
D905
D906
C910
R904
R903
C909 C905
D902
C902
D901
C901
R902
C908
C907
D907
C911
D908
C803 C806
R803 R805 R804
C807
R802
C802
C805
R801
C808
R104
R105
C104 C103
CNP702
CNP701
IC901
R308
C308
R310
R311
R321
R306
C304
R304R302
C302
R301
C319
R305
C303
R303C301
R319 R320
C307
R307
C305 R309 R315
R202
C205
C206C204RV201
C207
C201 R201
C202 C203
C804
C801
IC301(2/2)
S901
PC901
PT901
C306
Q801
X801
Q901
TB101
C101
C102
D903
R318
R317
IC301(1/2)
R312
R352
CNJ301
IC201
R351
IC801 C903
C904
11ES2
1k 1k
15P
0.001
0.001
0.001
250V2P2P
2P
5P
47k
2SD2144S-T2SD2144S-T
P-UVW
2SD2144S-T2SD2144S-T
P-UVW
220
0.01 10
3P
1SS133T
5P
1k1k
220
50V
MTZJ-T
-72-27
MTZJ-T
-72-6.8
10
50V
47k
100k
47
16V
2200
35V
11ES2
0.01
11ES2
0.01
47k
10
50V
470
6.3V
11ES2
0.47
50V
1SS133T
0.01 82p
2.2k 100 220
47p
47
47
16V
560p
10k
2.2
50V
10k
10k
10
50V 0.01
8P
9P
LA5667
4.7k
4.7
50V 220
1k
10
10k
10
50V
100k100k
4.7
50V
100k
220
16V
10k
10
50V
100k4.7
50V
100 100
4.7
50V
4.7k
100p 220 220
100
47
16V
0.010.0122k
0.1
50V
330p 470
0.01 0.01
0.01
0.01
NJM4558D
100p
2SC1740S
4.332MHz
BN1L4M
0.01
10
50V
11ES2
1k
1k
NJM4558D
1k
47k
2P
LA1235
47k
BU1924 47
50V
47
50V
A1
A4
A1
A2
A3
A4
AA1
AA2
AA3
AA4
AA6
AA7
AA8
AA1
AA1
AA2
AA4
AA5
AA6
AA7
AA8
AA3
A2
A3
AA5
POWER
CLK
DATA
D-IN
RDS-C
CE
ST
AST
MUTE
EON
RDS-D
SI
F
F
GND
+5V
-30V
G
G
QUAL
RDDA
IN
VDD
VDD
RDCL
TEST
MODE
GND
RESET
5V-IN
+5V
+13V-IN
+13V
IFIN
MUTE
VCC
SIG.
(CHASSIS)
L
R
LINE OUT
POWER
AC IN
* NOT REPLACEABLE:
BUILT IN TRANSFORMER
EON CONTROL OUT
TRANSFORMER
POWER
MUTING
MUTING
MUTING
MUTINGLINE AMP
NULL
LIMITER
FM SIGNAL
DETECTOR
SWITCH
FM DET
RDS
DECODER
MUTING
SWITCH
+5V,+13V
REGULATOR
MUTE
THE ASSEMBLED
BLOCK
(
(
SUPPLIED WITH
(CHASSIS)
AM
FM
75Ω
COAXIAL
ANTENNA
SCOUT
CIN
VSSA
VREF
VSSD
OSCI
OSCO
TS7
10µH
10µH
5-3. SCHEMATIC DIAGRAM – MAIN Section – • See page 9 for Waveform. •See page 14 for IC Block Diagram.
(Page 13)
(Page 13)

ST-SE570
1212
5-4. PRINTED WIRING BOARDS – DISPLAY Section – • See page 9 for Circuit Boards Location.
• Semiconductor
Location
Ref. No. Location
D701 B-10
D702 B-10
D703 A-11
D704 B-2
D705 A-8
IC701 B-7
IC702 B-8
Q701 A-11
ENTER DIRECT SHIFT
098 7 6 5 4
3
2
1DISPLAY MEMORY
FM MODE
BAND
EON
AUTO-BETICAL
SELECT
11
NEWS/INFO TA
PTY
(11)
1-681-058-
13
A
MAIN BOARD
CNP702
B
MAIN BOARD
CNP701
918
31 30
1
100
81
80
51
50
FLUORESCENT INDICATOR TUBE
62 61 57 55 50 45 40 35 30 25 20 15 11 96 2
1
+
S701 – 715,
717 – 724,
727, 728
123
ENCODER BOARD
13
1-681-059-
11
(11)
TUNING
/SELECT
SW BOARD
1-681-060-
4
1
MENU
RETURN
TUNE MODE
CHARACTER
11
(11)
DISPLAY BOARD
14
13
A
B
C
D
2 3 4 5 6 7 8 9 10 11 12
1
E
(Page 10) (Page 10)

ST-SE570
1313
5-5. SCHEMATIC DIAGRAM – DISPLAY Section – • See page 9 forWaveform. •See page 14 for IC Pin Function Description.
R704
R763
R781
CNP703CN703
CNP704CN704
CN702
CN701
R727
R726
R732
R731
R730
R729
R728
R725
R724
R723
R722
R721
R711
R712
C709
C708
C710 R713
R709
C702C704 C703
D702
R703
C705C701D701
S719
R771
R770
R773
S720
S721
R775
R776
R777
R778
R779
R780
R762
R761
R760
R759
R758
R757
R756
C717
R752
R753
R754
R755
R750
R751
R710
D705
R702
R701
C706
C707
TP1
TP2
TP3
R707
R706
D703
D704
C713
Q701
C714 R708
R705
FL701
IC701
X701
S701
S702
S703
S704
S705
S706
S707
S708
S709
S710
S711
S712
S717
S718
R772
S722
S723
S724
R774
IC702
S727
S713 S714
S728
RV701
R764
S715
JW754
JW753
JW752
JW751
C711C712
47k
3.9k
1.2k
3P3P
4P4P
8P
9P
470
470
470
470
470
470
470
470
470
470
470
470
100k
100k
0.01
0.01
0.01 100
100
0.0127p 27p
1SS133T
10k
0.010.011SS133T
120
100
150
220
270
330
470
560
820
2.2k
1.2k
820
560
470
330
270
220p
120
150
180
220
100
120
10k
1SS133T
1.5k
1.5k
0.1
47
35V
1k
22k
1SS133T
1SS133T
0.01
2SC1740S
0.47
50V 47
470k
F-040-3BA
4.192MHz
120
180
NJL64H400A-1
12k
0.10.22F
5.5V
K1 K2
P1
P2
P3
P4
G1
G2
G3
G4
G5
G6
G7
G8
G9
G10
G11
G12
G13
G14
G15
P1
P2
P3
P4
P5
P6
P7
P8
P9
P10
P11
P12
P13
P14
P15
P16
P17
P18
P19
P20
P21
P22
P23
P24
P25
P26
P27
P28
P29
P30
P32
P33
P31
P34
P35
P36
Z1
Z2
Z3
Z4
Z5
Z6
Z7
Z8
Z1
Z2
Z3
Z4
Z5
Z6
Z6
Z7
Z7
Z8
Z7
G1
G2
G3
G4
G5
G6
G7
G8
G9
G10
G11
G12
G13
G14
G15
P36
P35
P34
P5
P6
P7
P8
P9
P10
P11
P12
P13
P14
P15
P16
P17
P18
P19
P20
P21
P22
P23
P24
P25
P26
P29
P30
P31
P32
P33
P27
P28
Y1
Y2
Y3
Y4
Y5
Y6
Y7
Y8
Y1
Y2
Y3
Y4
Y5
Y6
Y7
Y8
Z9
Z10
Z9
Z10
X1
X2
X3
X1
X2
X3
K1
K2
POWER
CLK
DATA
D-IN
RDS-C
CE
ST
AST
MUTE
EON
RDS-D
SI
F
F
G16
P37
GND
+5V
-30V
ENCODER
P36
P35
P34
G1
G2
G3
G4
G5
G6
G7
G8
G9
G10
G11
G12
G13
G14
G15
P5
P6
P7
P8
P9
P10
P11
P12
P13
P14
P15
P16
P17
P18
P19
P20
P21
P22
P23
P24
P25
P26
P27
P28
P29
P30
P31
P32
P1
P2
P3
P4
FLUORESCENT INDICATOR TUBE
SYSTEM CONTROL
RESET
SHIFT
DIRECT
0
9
8
7
6
5
4
3
2
1 PTY
MEMORY
FM MODE
BAND
DISPLAY
AUTO-BETICAL
SELECT
NEWS
/INFO
TA
EON
G
OUT
5V
REMOTE SENSOR
CHARACTER
MENU RETURN
TUNE MODE
TUNING
/SELECT
ENTER
µPD780205G
(Page 11)
(Page 11)

ST-SE570
1414
3 6
11
2 5 81 4
1415 12 91016 13
7
FM IF AMP
LIMITER
AF/NULL
METER
QUADRATURE
DET
AF AMP
IF OFF
NULL METER
SHORTING
LEVEL
DET
METER
DRIVE
MUTING
CIRCUIT
DETUNE
DET
GND
B+
1234
REG
GND
CONTROL
REG
567
IC901 LA5667
ANALOG
DIGITAL
RCLK NC XO XI
VSS2
T2
VDD2
T1
QUAL
RDAT
VREF
MUX
VDD1
VSS1 VSS3
CMP
1 43 65 872
141516 13 12 11 10 9
CLOCK
PLL 57kHz
RDS/ARI
COMPARATOR
8th SWITCHED
CAPACITOR
FILTER
ANTI-ALIASING
FILTER
BIPHASE
DECODER
PLL
1187.5Hz
DEFFERENTIAL
DECODER
TEST
IC801 BU1924
• IC Block Diagrams
– MAIN Board –
IC201 LA1235
5-6. IC PIN FUNCTION DESCRIPTION
•DISPLAY BOARD IC701 (µPD780205GF-040-3BA)
Pin No. Pin Name I/O Description
1 VDD — Power supply terminal (+5V)
2 ANT —Not used (open)
3 ANT —Not used (open)
4 BAND1 —Not used (open)
5 BAND2 —Not used (open)
6 IF-B —Not used (open)
7 N.C. —Not used (open)
8 MONO —Not used (open)
9 TUN —Not used (open)
10 RESET I System reset signal input terminal “L”: reset
11 X2 O Main system clock output terminal (4.19MHz)
12 4.19MHz I Main system clock input terminal (4.19MHz)
13 GND —Ground terminal
14 N.C. —Not used (open)
15 LOCK I Lock signal input terminal
16 VDD —Power supply terminal (+5V)
17 CLK O Serial data transfer clock signal output to the PLL IC on tuner pack (TB101) “L”: active
18 DATA O Serial data output to the PLL IC on tuner pack (TB101)
19 D-IN I Serial data input from the PLL IC on tuner pack (TB101)
20 CE O Serial chip enable signal output to the PLL IC on tuner pack (TB101)
21 BLN —Not used (open)
22 ST I Stereo detection signal input from the tuner pack (TB101)
23 CAL —Not used (open)
24 AST I Tuned display detection signal input from the tuner pack (TB101) “L”: tuned
25 AVSS —Ground terminal
26 MUTE O Muting on/off control signal output terminal
27 EON O EON output control terminal
28 PGM —Not used (open)
29 DATA RDS I RDS data input from the RDS decoder (IC801)
30 R2 O Rotary encoder phase detection
31 KEY2 I Key input terminal (A/D input)
32 KEY1 I Key input terminal (A/D input)
33 SI I Signal input terminal
34 AVDD —Analog power supply terminal (+5V)
35 AVREF I Reference voltage (+5V) input terminal
36 RIN I Remote control signal input from the remote sensor (IC702)
37 R1 I Rotary encoder number of rotation detection
38 RDS CLK I RDS serial clock signal input from the RDS decoder (IC801)
39 POWER I Power supply ON/OFF monitor
40 GND —Ground terminal

15
ST-SE570
41, 42 IS5, IS4 I Setting terminal for the model
43 to 45 IS3, IS2, IS1 I Setting terminal for the destination
46 VDD — Power supply terminal (+5V)
47 to 78 P1 to P32 O Segment drive signal output to the fluorescent indicator tube (FL701)
79 VLOAD —Negative power supply terminal for the fluorescent indicator tube drive (–30V)
80 to 84 P33 to P37 O Segment drive signal output to the fluorescent indicator tube (FL701)
85 G16 —Not used (open)
86 to 100 G15 to G1 O Grid drive signal output to the fluorescent indicator tube (FL701)

16
ST-SE570
6-1. CASE SECTION
SECTION 6
EXPLODED VIEWS
The components identified by
mark 0or dotted line with mark
0are critical for safety.
Replace only with part number
specified.
• Items marked “*” are not stocked since they
are seldom required for routine service. Some
delay should be anticipated when ordering
these items.
• The mechanical parts with no reference num-
ber in the exploded views are not supplied.
• Accessories and packing materials are given
in the last of the electrical parts list.
• Accessories and packing materials are given
in the last of the electrical parts list.
NOTE:
• -XX and -X mean standardized parts, so they
may have some difference from the original
one.
• Color Indication of Appearance Parts
Example:
KNOB, BALANCE (WHITE) . . . (RED)
↑↑
Parts Color Cabinet's Color
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark
2 4-232-149-11 CASE (407026)
3 4-210-291-01 SCREW (CASE 3 TP2)
4 X-4953-448-1 FOOT ASSY
#1
2
33
3
4
5
FRONT PANEL SECTION
CHASSIS SECTION
5 4-232-237-01 FOOT (DIA. 30)
#1 7-685-646-79 SCREW +BVTP 3X8 TYPE2 IT-3

17
ST-SE570
6-2. FRONT PANEL SECTION
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark
51 4-997-882-51 KNOB (T)
52 X-4953-636-1 PANEL ASSY, FRONT
53 4-231-973-01 BUTTON (POWER)
54 1-681-061-11 AC SW BOARD
55 4-951-620-01 SCREW (2.6X8), +BVTP
56 A-4476-422-A DISPLAY BOARD, COMPLETE
57 1-681-059-11 ENCORDER BOARD
58 1-681-060-11 SW BOARD
51
52
53
supplied with RV701
54
55
55
56
57
58
55
55

18
ST-SE570
The components identified by mark 0or dotted
line with mark 0are critical for safety.
Replace only with part number specified.
6-3. CHASSIS SECTION
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark
101 3-704-515-31 SCREW (BV/RING)
102 4-957-880-11 BRACKET, TRANSFORMER
103 1-681-062-11 TRANSFORMER BOARD
104 A-4476-421-A MAIN BOARD, COMPLETE
*105 3-703-244-00 BUSHING (2104), CORD
0106 1-575-651-21 CORD, POWER
107 4-233-386-51 PANEL, BACK
108 1-773-002-11 WIRE (FLAT TYPE) (15 CORE)
0PT901 1-423-525-11 TRANSFORMER, POWER
TB101 1-693-410-25 TUNER (PACK)
#1 7-685-646-79 SCREW +BVTP 3X8 TYPE2 IT-3
#2 7-685-872-09 SCREW +BVTT 3X8 (S)
101
102
103 104
105
106
107
108
#2
PT901
#1
TB101
#1
#1
101

19
ST-SE570
SECTION 7
ELECTRICAL PARTS LIST AC SW DISPLAY
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark
1-681-061-11 AC SW BOARD
************
< CAPACITOR >
0C951 1-113-915-11 CERAMIC 0.001uF 20% 250V
< SWITCH >
0S901 1-572-267-51 SWITCH, PUSH (AC POWER) (1 KEY)
(POWER)
**************************************************************
A-4476-422-A DISPLAY BOARD, COMPLETE
************************
*4-921-941-01 CUSHION (FL)
*4-945-292-01 HOLDER, INDICATION TUBE
< CAPACITOR >
C701 1-127-876-11 CERAMIC 0.01uF 10% 50V
C702 1-127-876-11 CERAMIC 0.01uF 10% 50V
C703 1-128-802-11 CERAMIC 27PF 5% 50V
C704 1-128-802-11 CERAMIC 27PF 5% 50V
C705 1-127-876-11 CERAMIC 0.01uF 10% 50V
C706 1-164-159-11 CERAMIC 0.1uF 50V
C707 1-126-947-11 ELECT 47uF 20% 35V
C708 1-127-876-11 CERAMIC 0.01uF 10% 50V
C709 1-127-876-11 CERAMIC 0.01uF 10% 50V
C710 1-127-876-11 CERAMIC 0.01uF 10% 50V
C711 1-164-159-11 CERAMIC 0.1uF 50V
C712 1-104-905-11 CAPACITOR 0.22F 5.5V
C713 1-127-876-11 CERAMIC 0.01uF 10% 50V
C714 1-126-959-11 ELECT 0.47uF 20% 50V
C717 1-162-286-31 CERAMIC 220PF 10% 50V
< DIODE >
D701 8-719-911-19 DIODE 1SS133T-72
D702 8-719-911-19 DIODE 1SS133T-72
D703 8-719-911-19 DIODE 1SS133T-72
D704 8-719-911-19 DIODE 1SS133T-72
D705 8-719-911-19 DIODE 1SS133T-72
< FLUORESCENT INDICATOR TUBE FLUORESCENT >
FL701 1-517-860-11 INDICATOR TUBE, FLUORESCENT
NOTE:
• Due to standardization, replacements in the
parts list may be different from the parts speci-
fied in the diagrams or the components used
on the set.
• -XX and -X mean standardized parts, so they
may have some difference from the original
one.
• RESISTORS
All resistors are in ohms.
METAL: Metal-film resistor.
METAL OXIDE: Metal oxide-film resistor.
F: nonflammable
• Items marked “*” are not stocked since they
are seldom required for routine service.
Some delay should be anticipated when order-
ing these items.
• SEMICONDUCTORS
In each case, u: µ, for example:
uA. . : µA. . uPA. . : µPA. .
uPB. . : µPB. . uPC. . : µPC. .
uPD. . : µPD. .
• CAPACITORS
uF: µF
• COILS
uH: µH
The components identified by
mark 0or dotted line with mark
0are critical for safety.
Replace only with part number
specified.
When indicating parts by reference
number, please include the board.
< IC >
IC701 8-759-495-96 IC uPD780205GF-040-3BA
IC702 8-759-827-70 IC NJL64H400A-1
< TRANSISTOR >
Q701 8-729-119-78 TRANSISTOR 2SC1740S-QRT
< RESISTOR >
R701 1-249-419-11 CARBON 1.5K 5% 1/4W
R702 1-249-419-11 CARBON 1.5K 5% 1/4W
R703 1-249-429-11 CARBON 10K 5% 1/4W
R704 1-249-437-11 CARBON 47K 5% 1/4W
R705 1-247-895-00 CARBON 470K 5% 1/4W
R706 1-249-433-11 CARBON 22K 5% 1/4W
R707 1-249-417-11 CARBON 1K 5% 1/4W
0R708 1-249-401-11 CARBON 47 5% 1/4W F
R709 1-247-807-31 CARBON 100 5% 1/4W
R710 1-249-429-11 CARBON 10K 5% 1/4W
R711 1-249-441-11 CARBON 100K 5% 1/4W
R712 1-249-441-11 CARBON 100K 5% 1/4W
R713 1-247-807-31 CARBON 100 5% 1/4W
R721 1-249-413-11 CARBON 470 5% 1/4W
R722 1-249-413-11 CARBON 470 5% 1/4W
R723 1-249-413-11 CARBON 470 5% 1/4W
R724 1-249-413-11 CARBON 470 5% 1/4W
R725 1-249-413-11 CARBON 470 5% 1/4W
R726 1-249-413-11 CARBON 470 5% 1/4W
R727 1-249-413-11 CARBON 470 5% 1/4W
R728 1-249-413-11 CARBON 470 5% 1/4W
R729 1-249-413-11 CARBON 470 5% 1/4W
R730 1-249-413-11 CARBON 470 5% 1/4W
R731 1-249-413-11 CARBON 470 5% 1/4W
R732 1-249-413-11 CARBON 470 5% 1/4W
R750 1-247-807-31 CARBON 100 5% 1/4W
R751 1-249-406-11 CARBON 120 5% 1/4W
R752 1-249-406-11 CARBON 120 5% 1/4W
R753 1-249-407-11 CARBON 150 5% 1/4W
R754 1-249-408-11 CARBON 180 5% 1/4W
R755 1-249-409-11 CARBON 220 5% 1/4W
R756 1-249-410-11 CARBON 270 5% 1/4W
R757 1-249-411-11 CARBON 330 5% 1/4W
R758 1-249-413-11 CARBON 470 5% 1/4W
R759 1-249-414-11 CARBON 560 5% 1/4W
The components identified by mark 0or dotted
line with mark 0are critical for safety.
Replace only with part number specified.

Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark
20
ST-SE570
DISPLAY ENCODER MAIN
R760 1-249-416-11 CARBON 820 5% 1/4W
R761 1-249-418-11 CARBON 1.2K 5% 1/4W
R762 1-249-421-11 CARBON 2.2K 5% 1/4W
R770 1-247-807-31 CARBON 100 5% 1/4W
R771 1-249-406-11 CARBON 120 5% 1/4W
R772 1-249-406-11 CARBON 120 5% 1/4W
R773 1-249-407-11 CARBON 150 5% 1/4W
R774 1-249-408-11 CARBON 180 5% 1/4W
R775 1-249-409-11 CARBON 220 5% 1/4W
R776 1-249-410-11 CARBON 270 5% 1/4W
R777 1-249-411-11 CARBON 330 5% 1/4W
R778 1-249-413-11 CARBON 470 5% 1/4W
R779 1-249-414-11 CARBON 560 5% 1/4W
R780 1-249-416-11 CARBON 820 5% 1/4W
< SWITCH >
S701 1-771-349-11 SWITCH, KEYBOARD (SHIFT)
S702 1-554-303-21 SWITCH, TACTILE (1)
S703 1-554-303-21 SWITCH, TACTILE (2)
S704 1-554-303-21 SWITCH, TACTILE (3)
S705 1-554-303-21 SWITCH, TACTILE (4)
S706 1-554-303-21 SWITCH, TACTILE (5)
S707 1-554-303-21 SWITCH, TACTILE (6)
S708 1-554-303-21 SWITCH, TACTILE (7)
S709 1-554-303-21 SWITCH, TACTILE (8)
S710 1-554-303-21 SWITCH, TACTILE (9)
S711 1-554-303-21 SWITCH, TACTILE (0)
S712 1-771-349-11 SWITCH, KEYBOARD (DIRECT)
S715 1-771-349-21 SWITCH, KEYBOARD (ENTER)
S717 1-771-349-21 SWITCH, KEYBOARD (DISPLAY)
S718 1-771-349-21 SWITCH, KEYBOARD (PTY)
S719 1-771-349-21 SWITCH, KEYBOARD (EON NEWS/INFO)
S720 1-771-349-21 SWITCH, KEYBOARD (EON TA)
S721 1-771-349-21 SWITCH, KEYBOARD (AUTO-BETICAL SELECT)
S722 1-771-349-21 SWITCH, KEYBOARD (MEMORY)
S723 1-771-349-21 SWITCH, KEYBOARD (FM MODE)
S724 1-771-349-21 SWITCH, KEYBOARD (BAND)
< VIBRATOR >
X701 1-760-422-11 VIBRATOR, CRYSTAL (4.192MHz)
**************************************************************
1-681-059-11 ENCODER BOARD
***************
< VARIABLE RESISTOR >
RV701 1-467-703-11 ENCODER, ROTARY (TUNING/SELECT)
**************************************************************
A-4476-421-A MAIN BOARD, COMPLETE
*********************
7-685-647-79 SCREW +BVTP 3X10 TYPE2 IT-3
< CAPACITOR >
C101 1-127-876-11 CERAMIC 0.01uF 10% 50V
C102 1-126-964-11 ELECT 10uF 20% 50V
C103 1-127-876-11 CERAMIC 0.01uF 10% 50V
C104 1-126-964-11 ELECT 10uF 20% 50V
C201 1-162-288-31 CERAMIC 330PF 10% 50V
C202 1-127-876-11 CERAMIC 0.01uF 10% 50V
C203 1-127-876-11 CERAMIC 0.01uF 10% 50V
C204 1-127-876-11 CERAMIC 0.01uF 10% 50V
C205 1-104-660-91 ELECT 47uF 20% 16V
C206 1-127-876-11 CERAMIC 0.01uF 10% 50V
C207 1-126-956-91 ELECT 0.1uF 20% 50V
C251 1-127-876-11 CERAMIC 0.01uF 10% 50V
C301 1-126-963-11 ELECT 4.7uF 20% 50V
C302 1-126-963-11 ELECT 4.7uF 20% 50V
C303 1-126-964-11 ELECT 10uF 20% 50V
C304 1-126-964-11 ELECT 10uF 20% 50V
C305 1-110-335-11 MYLAR 100PF 5% 50V
C306 1-110-335-11 MYLAR 100PF 5% 50V
C307 1-126-963-11 ELECT 4.7uF 20% 50V
C308 1-126-963-11 ELECT 4.7uF 20% 50V
C319 1-126-934-11 ELECT 220uF 20% 16V
C351 1-130-471-00 MYLAR 0.001uF 5% 50V
C352 1-130-471-00 MYLAR 0.001uF 5% 50V
C801 1-127-876-11 CERAMIC 0.01uF 10% 50V
C802 1-104-660-91 ELECT 47uF 20% 16V
C803 1-127-876-11 CERAMIC 0.01uF 10% 50V
C804 1-127-876-11 CERAMIC 0.01uF 10% 50V
C805 1-162-291-31 CERAMIC 560PF 10% 50V
C806 1-128-808-11 CERAMIC 82PF 5% 50V
C807 1-128-805-11 CERAMIC 47PF 5% 50V
C808 1-126-961-11 ELECT 2.2uF 20% 50V
C901 1-127-876-11 CERAMIC 0.01uF 10% 50V
C902 1-127-876-11 CERAMIC 0.01uF 10% 50V
C903 1-126-967-11 ELECT 47uF 20% 50V
C904 1-126-967-11 ELECT 47uF 20% 50V
C905 1-126-953-11 ELECT 2200uF 20% 35V
C906 1-126-969-11 ELECT 220uF 20% 50V
C907 1-126-935-11 ELECT 470uF 20% 6.3V
C908 1-126-964-11 ELECT 10uF 20% 50V
C909 1-104-660-91 ELECT 47uF 20% 16V
C910 1-126-964-11 ELECT 10uF 20% 50V
C911 1-126-959-11 ELECT 0.47uF 20% 50V
< CONNECTOR >
CN101 1-784-776-11 CONNECTOR, FFC 15P
< JACK >
CNJ251 1-566-212-11 PIN, CONNECTOR 3P (EON CONTROL OUT)
CNJ301 1-778-940-11 JACK 2P (LINE OUT)
< CONNECTOR >
*CNP701 1-568-936-11 PIN, CONNECTOR 9P
*CNP702 1-568-935-11 PIN, CONNECTOR 8P
CNP952 1-766-267-11 PIN, CONNECTOR (PC BOARD) 5P
< DIODE >
D251 8-719-911-19 DIODE 1SS133T-72
D901 8-719-024-99 DIODE 11ES2-NTA2B
D902 8-719-024-99 DIODE 11ES2-NTA2B
D903 8-719-024-99 DIODE 11ES2-NTA2B