Sony ST-SE370 - Tuner User manual
SERVICE MANUAL
FM STEREO FM-AM TUNER
US Model
AEP Model
UK model
E Model
Australian Model
SPECIFICATIONS
ST-SE370
Ver 1.0 2001.04
9-873-833-11 Sony Corporation
2001D0500-1 Home Audio Company
C2001.4 ShinagawaTec Service Manual Production Group
FM tunersection
Frequency range 87.5 - 108.0 MHz
(U.S. models: 100 kHz
step, other models: 50 kHz
step)
Aerial terminals 75 Ω, unbalanced
U.S. models: F-TYPE
CONNECTOR,
other models: 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:
U.S. models: 530 - 1,710 kHz
(10 kHz step*)
Singaporean and Australian models:
531 - 1,710 kHz
(9 kHz step)
Other models: 531 - 1,602 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
U.S. models: 120 V AC, 60 Hz
Australian models: 230 V AC, 50 Hz
Other models: 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)
* (U.S. models only.)You can change the AM tuning
interval to 9 kHz.After tuning in anyAM station,
turn off the tuner. Hold down the numeric button 9
and press the POWER button. To reset the scale to
10 kHz, hold down the numeric button 0 and press
the POWER button to turn on the tuner. All preset
stations will be erased when you change the tuning
interval.
Design and specifications are subject to change
without notice.
Photo: Black model
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2
ST-SE370
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 .................................................................... 15
6-2. Front Panel Section ......................................................... 16
6-3. Chassis Section ............................................................... 17
7. ELECTRICAL PARTS LIST ............................... 18
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.
SAFETY CHECK-OUT
After correcting the original service problem, perform the follow-
ing safety check before releasing the set to the customer:
Check the antenna terminals, metal trim, “metallized”knobs,
screws, and all other exposed metal parts for AC leakage.
Check leakage as described below.
LEAKAGE TEST
TheAC leakage from any exposed metal part to earth ground and
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5 mA (500 microamperes.).
Leakage current can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or RCA
WT-540A. Follow the manufacturers’instructions to use these
instruments.
2. A battery-operatedAC milliammeter. The Data Precision 245
digital multimeter is suitable for this job.
3. Measuring the voltage drop across a resistor by means of a
VOM or battery-operated AC voltmeter. The “limit”indica-
tion is 0.75 V, so analog meters must have an accurate low-
voltage scale. The Simpson 250 and Sanwa SH-63Trd are ex-
amples of a passive VOM that is suitable. Nearly all battery
operated digital multimeters that have a 2 V AC range are
suitable. (See Fig. A)
Fig. A. Using an AC voltmeter to check AC leakage.
1.5 k
Ω
0.15 µF
AC
voltmete
r
(0.75 V)
To Exposed Metal
Parts on Set
Earth Ground
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3
ST-SE370
SECTION 1
GENERAL This section is extracted from
instruction manual.
LOCATION OF CONTROLS
– Front Panel –
AUTO BETICAL SELECT (European model only)
qh (7, 12)
BAND qd (9, 10, 12)
CHARACTER 5(11)
DIRECT 0(9)
DISPLAY 3(10, 11, 13)
ENTER 9(9, 11, 12, 14)
FM MODE qf (9, 10)
MEMORY 2(8, 11)
MENU 8(9, 11, 14)
Numeric buttons qs (7–9)
POWER 1(7, 8, 12)
PTY (European model only) qg (14, 15)
RETURN 7(9)
SHIFT qa (8, 11)
TUNE MODE 6(8, 10)
TUNING/SELECT 4(7–12, 14)
1234567890
1 2 3 5 64
7890qaqsqdqfqgqh
1FM ANTENNA terminal
2AM ANTENNA terminal
3LINE OUT jack
– Rear Panel –
ANTENNA LINE OUT
FM
U
75ΩCOAXIAL
R L
AM
2
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ST-SE370
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
three screws
(case 3 TP2)
4
case (407026)
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ST-SE370
5
2-3. MAIN BOARD
5
MAIN board
2
connector (CNP701)
2
connector (CNP702)
2
connector (CNP951)
2
connector (CNP901)
1
wire (flat type) (15 core)
(CN101)
3
screw
(BV/RING)
3
screw
(BVTP3
×
8 (S))
4
screw
(BVTT3
×
6 (S)
)
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6
ST-SE370
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.
1. DisplayTube and Key Check Mode
1-1. Display Tube Check
1-1-1. Turn OFF the power.
1-1-2. While pressing 1and BAND together, turn ON POWER .
1-1-3. While continuously pressing 1and BAND together, check the following.
(1) All light up
1-2. Key Check
1-2-1. Release 1and BAND . The KEY CHECK mode will be set.
1-2-2. All key numbers will be displayed. Key Number : 23
1-2-3. Each time the key is pressed, the key number will be counted down.
Each key will be counted only once, at the first time.
1-2-4. When all keys have been pressed, the process will end and the factory preset will be entered.
2. Entering the Factory Preset
To skip “1. Display Tube Key Check Mode”, and factory preset :
(1) Turn OFF the power.
(2) While pressing 3and BAND together, turn ON POWER .
3. Circuit Check Mode
Set to the reception frequency that the circuit can receive (FM : 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 BAND together, turn ON POWER .
• The items in the following table will be checked automatically in order every 2 seconds.
SECTION 3
TEST MODE
(2) 8-digit test pattern
(3) 2-digit test pattern
The display changes every 500 msec.
Microcomputer version indication (1 sec) tAll light up (1) t8-digit test pattern (2) t2-digit test pattern (3)
T
FM RDS
Display Items
TUNED
IF
SIG L
ST
RDS
AST signal = LOW
IF COUNT OK
SI LEVEL 70dB
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
NG
IC201 NG, RV201 adjustments
TB101, IC201 NG
TB101 NG
TB101 NG
IC801 NG
=
>
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7
ST-SE370
4. Forced RESET
Clears all the RAMs and sets the initial state.
(1) Turn OFF the power.
(2) While pressing 5and BAND together, turn ON POWER .
5. Language Change
1. Turn OFF the power.
2. While pressing 2, turn ON POWER .
6. Change-over of AMTuner Step between 9 kHz and 10 kHz (US model only)
• A step of AM channels can be changed over between 9 kHz and 10 kHz.
1. Turn OFF the power.
2. While pressing 9or -, turn ON POWER .
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8
ST-SE370 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” indication
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
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ST-SE370
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.
•Voltages are takenwithaVOM(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 eg (X2)
– MAIN Board –
2IC801 qf (OSCO) (AEP, UK model only)
5.4 Vp-p
4.2 MHz
4.8 Vp-p
4.332 MHz
• Circuit Boards Location
MAIN board
TUNER (PACK)
AC SW board
DISPLAY board
SW board
ENCORDER board
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ST-SE370
1010
5-2. PRINTED WIRING BOARDS – MAIN Section – • See page 9 for Circuit Boards Location.
IC301 D-6
IC801 B-7
IC901 C-7
Q301 E-7
Q302 D-7
Q801 B-7
Q901 C-8
Ref. No. LocationRef. No. Location
D901 D-5
D902 D-5
D903 C-5
D904 C-5
D905 C-5
D906 A-5
D907 C-7
D908 C-6
IC201 D-9
• Semiconductor Location
MAIN BOARD
2
1
AC SW BOARD
POWER
1
2
1-681-067-
11
(11)
PC901
AC IN
BLU
BRN
2
1
(CHASSIS)
(EXCEPT US)
(US)
*
NOT REPLACEABLE : BUILT IN TRANSFORMER
*
POWER TRANSFORMER
9 8
A
DISPLAY BOARD
CN702
B
DISPLAY BOARD
CN701
17
E
E
18
169
18
169
1
4
85
(AEP, UK)
EXCEPT
AEP, UK
E
E
EXCEPT
AEP, UK
(AEP, UK)
EXCEPT
AEP, UK
EXCEPT
AEP, UK
L R
LINE OUT
1-681-063-
11
(11)
75Ω
COAXIAL
AM
FM
TUNER PACK
SUPPLIED WITH
THE ASSEMBLED
BLOCK
ANTENNA
(AEP, UK)
A
B
C
D
E
1 2 3 4 5 6 7 8 9 10
TB101
(Page 12) (Page 12)
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ST-SE370
1111
5-3. SCHEMATIC DIAGRAM – MAIN Section – • See page 9 for Waveform. •See page 14 for IC Block Diagram.
R904
R303
R310
R903
CNP951
C352
C351
L351
R908 R910R909
R907R906R905
C906
C909
D904
D903
C903
C904
C908
R902
D907
C907
C911
D908
R804
D902
D901
C901
C902
C951
CNP901
JW902
JW901
CN951
CNP701
C910 R901
R805R803
X801
C806
C807
C803
R802
C802
C805
C801
C804
C808
R801
C201
C202
C203
R202
C207 RV201 C204 C206 C205
C102C101
CNP702
C301
C319 R301
R306
C304
C303
R305
R304R302
C302
R308
C306
JW302
C308
C307
IC301(2/2)
R309
R311
R312
R321
Q301
L352
R352
R351
JW305JW303JW301
R307
CN101
J301
PT901
PC901
S901
JW306JW304
Q302
R319 R320
Q801
C104
C103
R105
R104
R201
C305
TB101
IC301(1/2)
D906
D905
IC201
IC801
Q901
C905
IC901
EP901
R900
47k
100k
470
100k
2P
1000p
1000p
470 470470
470470470
220
50V
47
16V
11ES2
11ES2
47
50V47
50V
10
50V
47k
11ES2
470
6.3V
0.47
50V
1SS133
220
11ES2
11ES2
0.01
0.01
1000p
250V
2P
2P
9P
10
50V 47k
1002.2k
4.332MHz
82p
47p
0.01
47
47
16V
560p
0.01
0.01
2.2
50V
10k
330p
0.01
0.01
100
0.1
50V 22k 0.01 0.01 47
16V
10
50V
0.01
8P
4.7
50V
220
16V
100k
10k
10
50V
10
50V
10k
100k100k
4.7
50V
4.7k
100p
4.7
50V
4.7
50V
NJM4558D
470
1k
1k
10
2SD2144S
47k
47k
4.7k
15P
2SD2144S
100 100
2SC1740S
10
50V0.01
10k
10k
470
100p
NJM4558D
MTZJ-T-72-6.2
MTZJ-T-72-30
LA1235
BU1924
BLIN4M
2200
35V
LA5667
3.3M
1/2W
A1
A2
A3
A4
A1
A4
Z1
Z2
Z1
Z2
A2
A3
+5V
GND
POWER
CLK
DATA
D-IN
RDS-C
-30V
CE
ST
AST
MUTE
EON
G
G
(CHASSIS)
230V
120V
100V
OR
0V
(CHASSIS)
QUAL
RDDA
IN
VDD
VDD
RDCL
TEST
MODE
IFIN
MUTE
VCC
SIG.
GND
RESET
5V-IN
+5V
+13V-IN
+13V
L
R
LINE OUT
*
NOT REPLACEABLE:
BUILT IN TRANSFORMER
TRANSFORMER
POWER
(US)
(EXCEPT US)
(US)
AC IN
POWER
(EXCEPT AEP,UK)
(AEP,UK)
(AEP,UK)
(EXCEPT AEP,UK)
MUTING
MUTING
LINE AMP
(AEP,UK)
(EXCEPT AEP,UK)
(EXCEPT AEP,UK)
(AEP,UK)
MUTING
SWITCH
+5V,+13V
REGULATOR
MUTE
NULL
LIMITER
RDS
DECODER
SWITCH
FM DET
FM SIGNAL
DETECTOR
THE ASSEMBLED
BLOCK
(
(
SUPPLIED WITH
(CHASSIS)
AM
FM
75Ω
COAXIAL
ANTENNA
SCOUT
CIN
VSSA
VREF
VSSD
TS7
OSCO
OSCI
FL2
FL1
SIGNAL
RDS-DATA
10µH
10µH
(Page 13)
(Page 13)
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ST-SE370
1212
5-4. PRINTED WIRING BOARDS – DISPLAY Section – • See page 9 for Circuit Boards Location.
• Semiconductor
Location
Ref. No. Location
D701 B-11
D702 A-11
D703 A-2
D704 B-3
IC701 B-4
IC702 B-8
Q701 B-2
DISPLAY BOARD
14
13
ENTER DIRECT SHIFT
0 9
8 7
6 5
4 3 2 1
E
5101 2 15 19 25 30 35 36 42 43
FLUORESCENT INDICATOR TUBE
24
41
64
13
18
19
BMAIN BOARD
CNP701
AMAIN BOARD
CNP702
DISPLAY MEMORY
FM MODEBAND PTY
1-681-064-
11
(11)
S701 – 715, 717, 718,
721 – 724, 727, 728
ENCODER BOARD
1-681-065-
11
(11)
TUNING
/SELECT
13
123
SW BOARD
1-681-066-
11
(11)
4
1
MENU
RETURN
TUNE MODE
CHARACTER
A
B
C
D
E
1 2 3 4 5 6 7 8 9 10 11 12
+
(EXCEPT SP, AUS) (EXCEPT US)
(US)(SP, AUS)
(EXCEPT AEP, UK) (AEP, UK)
EXCEPT
AEP, UK
AUTO-BETICAL
SELECT
(AEP, UK)
180
40
25
(Page 10) (Page 10)
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ST-SE370
1313
R758
FL701
CNP703CN703
CNP704CN704
CN702
CN701
R732
R728
R727
R726
R725
R724
R723
R722
R721
R711R712
C709 C708
R733R734
C716
S717
S718
S721
S722
S723
S724
R776
R775
R771
R770
R777
R778
R779
R780
S701
R750
R751 S702
R752 S703
S704
S705
S706
S707
S708
R753
R754
R755
R756
R757
S709
S710
S711
S712
R760
R759
R761
R762
C711
C701
R710
R703
R704
X701
C703C704
C705
R701
R702
C713
R705
R713C710
JW793
JW794
JW792
JW791
C714
Q701
R707
R708
C717
C706
C707
TP1
TP3
TP2
D701
D702
R729
R731
S727
R781
S713
R763
S728
S714
R764
S715
D703
C712 C715 R706 D704 C702
IC702
RV701
R772
R773
R792
R793
IC701
470
3P3P
4P4P
8P
9P
470
470
470
470
470
470
470
470
470
100k100k
0.01 0.01
100k100k
22
50V
270
220
120
100
330
470
560
820
100
120
120
150
180
220
270
330
820
560
1.2k
2.2k
10
50V
0.01
10k
10k
10k
4.2MHz
27p27p
0.01
1.5k
1.5k
0.01
470k
1000.01
0.47
50V
2SC1740S
1k
47
0.01
0.01
10
50V
1SS133T
1SS133T
470
470
1.2k
3.9k
12k
1SS133T
0.22F
5.5V 0.01 22k 1SS133T 0.01
NJL64H400A-1
120
330
10k
10k
-3B9
G2
G3
G4
G5
G6
G7
G2
G3
G4
G5
G6
G7
G8
G9
G10
G11
P2
P3
P4
P5
P6
P7
P8
P9
P10
P11
P12
P13
P14
P15
P16
P17
P18
G1
P1
G1
Z1
Z2
Z3
Z4
Z5
Z6
Z1
Z2
Z3
Z4
Z5
Z6
Z6
Y1
Y2
Y3
Y4
Y5
Y6
Y7
Y1
Y2
Y3
Y4
Y5
Y6
Y7
Z7
Z8
Z7
Z8
G11
G10
G9
G8
P1
P18
P17
P16
P15
P14
P13
P12
P11
P10
P9
P8
P7
P6
P5
P4
P3
P2
RDS DATA
VDD
PLL DATA OUT
AVDD
AVREF
GND
NC
GND
X1
X2
VDD
VFL
FL2
FL1
MUTE
POWER
AST
ST
+5V
GND
IC
IS1
IS2
IS3
IS4
AVSS(GND)
GND
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
KEY2
DC.CUT
NC
EON
KEY1
SI
NC
RDS DATA
RDS CLK
RESET
MUTE
ST
AST
RIN
R1
POWER
R2
NC
NC
NC
PLL CLK
PLL DATA IN
PLL CE
SIGNAL
CE
EON
F2
F2
F1
F1
FLUORESCENT INDICATOR TUBE
P12
P13
P14
P15
P16
P17
P18
G7
G6
G5
G4
G3
G2
G1
P11
P10
P9
P8
P7
P6
P5
P4
P3
P2
P1
G11
G10
G9
G8
G
OUT
5V
ENCODER
(EXPECT AEP,UK)
(AEP,UK)
(AEP,UK)
TUNING
/SELECT
CHARACTER
MENU RETURN
TUNE MODE
DISPLAY
PTY
MEMORY
FM MODE
BAND
AUTO-BETICAL
SELECT
ENTER
SHIFT
DIRECT
0
9
8
7
6
5
4
3
2
1
SYSTEM CONTROL
RESET
REMOTE SENSOR
(AEP,UK)
(AEP,UK)
(SP,AUS)
(US)
(EXCEPT US)
(EXCEPT SP,AUS)
D-IN
DATA
CLK
RDS-C
-30V
µPD78045FGF-130
5-5. SCHEMATIC DIAGRAM – DISPLAY Section – • See page 9 for Waveform. •See page 14 for IC Pin Function Description.
(Page 11)
(Page 11)
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ST-SE370
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 µPD78045FGF-130-3B9 (SYSTEM CONTROL)
Pin No. Pin Name I/O Description
1 to 7 G7 to G1 O Grid drive signal output to the fluorescent indicator tube (FL701)
8VDD—
Power supply terminal (+5V)
9 PLL CLK O Serial data transfer clock signal output to the PLL IC on tuner pack (TB101)
10 PLL DATA OUT OSerial data output to the PLL IC on tuner pack (TB101)
11 PLL DATA IN I Serial data input from the PLL IC on tuner pack (TB101)
12 PLL CE O Serial chip enable signal output to the PLL IC on tuner pack (TB101)
13 AST I Tuned display detection signal input from the tuner pack “L”: tuned
14 ST I Stereo detection signal input from the tuner pack “L”: stereo
15, 16 NC — Not used (fixed at “L”)
17 RESET I System reset signal input terminal “L”: reset
18 DC. CUT — Not used (open)
19 NC — Not used (fixed at “L”)
20 AVSS (GND) — Ground terminal
21 MUTE O Muting on/off control signal output terminal
22 to 24 NC — Not used (fixed at “L”)
25 EON — EON output control terminal Not used (open)
26 KEY1 I Key input terminal (A/D input)
27 KEY2 I Key input terminal (A/D input)
28 SI I Signal input terminal
29 AVDD — Analog power supply terminal (+5V)
30 AVREF — Reference voltage input terminal (+5V)
31 GND — Ground terminal
32 NC — Not used (open)
33 GND — Ground terminal
34 X1 I Main system clock input terminal (4.19MHz)
35 X2 O Main system clock output terminal (4.19MHz)
36 to 42 NC — Not used (fixed at “L”)
43 RDS DATA I RDS data input from the RDS decorder (IC801) (Used for the AEP and UK models only)
44 RDS CLK I RDS serial clock signal input from the RDS decoder (IC801) (Used for the AEP and UK models
only)
45 R1 I Rotary encoder number of rotation detection
46 RIN I Remote control signal input from the remote sensor (IC702)
47 POWER I Power supply ON/OFF monitor
48 IC I Signal chip mode detection Not used (fixed at “L”)
49 NC — Not used (fixed at “L”)
50 R2 O Rotary encoder phase detection
51 NC — Not used (fixed at “L”)
52 VDD — Power supply terminal (+5V)
53 to 56 IS1 to IS4 I Setting terminal for the model
57 GND — Ground terminal
58 to 70 P18 to P6 O Segment drive signal output to the fluorescent indicator tube (FL701)
71 VFL — Negative power supply terminal for the fluorescent indicator tube drive (–30V)
72 to 76 P5 to P1 O Segment drive signal output to the fluorescent indicator tube (FL701)
77 to 80 G11 to G8 O Grid drive signal output to the fluorescent indicator tube (FL701)
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15
ST-SE370
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) (BLACK)
2 4-232-580-11 CASE (407026) (SILVER)
3 4-210-291-01 SCREW (CASE 3 TP2) (BLACK)
3 4-210-291-11 SCREW (CASE 3 TP2) (SILVER)
4 X-4953-448-1 FOOT ASSY
5 4-232-237-01 FOOT (DIA. 30)
#1 7-685-646-79 SCREW +BVTP 3X8 TYPE2 IT-3
2
3
3
3
4
5
FRONT PANEL SECTION
CHASSIS SECTION
#1
• Abbreviation
AUS : Australian model
SP : Singapore model
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16
ST-SE370
6-2. FRONT PANEL SECTION
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark
51 4-997-882-41 KNOB (T) (SILVER)
51 4-997-882-51 KNOB (T) (BLACK)
52 X-4953-632-1 PANEL ASSY, FRONT (AEP: BLACK, UK)
52 X-4953-633-1 PANEL ASSY, FRONT (AEP: SILVER)
52 X-4953-634-1 PANEL ASSY, FRONT (US)
52 X-4953-635-1 PANEL ASSY, FRONT (SP, AUS)
53 4-231-973-01 BUTTON (POWER) (BLACK)
53 4-231-973-11 BUTTON (POWER) (SILVER)
54 1-681-067-11 AC SW BOARD
55 4-951-620-01 SCREW (2.6X8), +BVTP
56 A-4476-428-A DISPLAY BOARD, COMPLETE (AEP, UK)
56 A-4476-434-A DISPLAY BOARD, COMPLETE (US)
56 A-4476-437-A DISPLAY BOARD, COMPLETE (SP, AUS)
57 1-681-065-11 ENCORDER BOARD
58 1-681-066-11 SW BOARD
51
52
53
supplied with RV701
54
55
55
56
57
58
55
55
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17
ST-SE370
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)
104 A-4476-427-A MAIN BOARD, COMPLETE (AEP, UK)
104 A-4476-433-A MAIN BOARD, COMPLETE (US)
104 A-4476-436-A MAIN BOARD, COMPLETE (AUS)
104 A-4476-439-A MAIN BOARD, COMPLETE (SP)
*105 3-703-244-00 BUSHING (2104), CORD
0106 1-575-651-21 CORD, POWER (AEP, SP, UK)
0106 1-696-845-11 CORD, POWER (AUS)
0106 1-783-531-31 CORD, POWER (US)
107 4-233-386-01 PANEL, BACK (AEP, SP)
107 4-233-386-11 PANEL, BACK (UK)
107 4-233-386-21 PANEL, BACK (US)
107 4-233-386-31 PANEL, BACK (AUS)
108 1-773-002-11 WIRE (FLAT TYPE) (15 CORE)
0PT901 1-429-466-11 TRANSFORMER, POWER (US)
0PT901 1-429-467-11 TRANSFORMER, POWER (EXCEPT US)
TB101 1-693-407-23 TUNER (US)
TB101 1-693-410-25 TUNER (PACK) (EXCEPT US)
#1 7-685-646-79 SCREW +BVTP 3X8 TYPE2 IT-3
#2 7-685-871-09 SCREW +BVTT 3X6 (S)
104
105
106
107
101
108
#1
#1
#1
#2
#2
TB101
#1
PT901
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18
ST-SE370 SECTION 7
ELECTRICAL PARTS LISTAC SW DISPLAY
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark
1-681-067-11 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-4476-428-A DISPLAY BOARD, COMPLETE (AEP, UK)
A-4476-434-A DISPLAY BOARD, COMPLETE (US)
A-4476-437-A DISPLAY BOARD, COMPLETE (SP, AUS)
************************
*4-921-941-01 CUSHION (FL)
*4-979-925-01 HOLDER (FL-D)
< 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 1-127-876-11 CERAMIC 0.01uF 10% 50V
C707 1-126-964-11 ELECT 10uF 20% 50V
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 1-126-964-11 ELECT 10uF 20% 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
C715 1-127-876-11 CERAMIC 0.01uF 10% 50V
C716 1-126-965-11 ELECT 22uF 20% 50V
C717 1-127-876-11 CERAMIC 0.01uF 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
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.
< FILTER >
FL701 1-517-516-11 INDICATOR TUBE, FLUORESCENT
< IC >
IC701 8-759-834-92 IC uPD78045FGF-130-3B9
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 1-249-429-11 CARBON 10K 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
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
(AEP, UK)
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
R731 1-249-413-11 CARBON 470 5% 1/4W
(AEP, UK)
R732 1-249-413-11 CARBON 470 5% 1/4W
R733 1-249-441-11 CARBON 100K 5% 1/4W
(EXCEPT AEP, UK)
R734 1-249-441-11 CARBON 100K 5% 1/4W
(EXCEPT AEP, UK)
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
The components identified by mark 0or dotted
line with mark 0are critical for safety.
Replace only with part number specified.
• Abbreviation
AUS : Australian model
SP : Singapore model
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark
19
ST-SE370
DISPLAY ENCODER MAIN
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
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 1-249-411-11 CARBON 330 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
R792 1-249-429-11 CARBON 10K 5% 1/4W
(US)
R793 1-249-429-11 CARBON 10K 5% 1/4W
(SP, AUS)
< SWITCH >
S701 1-771-349-11 SWITCH, KEYBOARD (SHIFT)
S702 1-771-349-21 SWITCH, KEYBOARD (1)
S703 1-771-349-21 SWITCH, KEYBOARD (2)
S704 1-771-349-21 SWITCH, KEYBOARD (3)
S705 1-771-349-21 SWITCH, KEYBOARD (4)
S706 1-771-349-21 SWITCH, KEYBOARD (5)
S707 1-771-349-21 SWITCH, KEYBOARD (6)
S708 1-771-349-21 SWITCH, KEYBOARD (7)
S709 1-771-349-21 SWITCH, KEYBOARD (8)
S710 1-771-349-21 SWITCH, KEYBOARD (9)
S711 1-771-349-21 SWITCH, KEYBOARD (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) (AEP, UK)
S721 1-771-349-21 SWITCH, KEYBOARD (AUTO-BETICAL SELECT)
(AEP, UK)
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 (4.2MHz)
**************************************************************
1-681-065-11 ENCODER BOARD
***************
< VARIABLE RESISTOR >
RV701 1-467-703-11 ENCODER, ROTARY (TUNING/SELECT)
**************************************************************
A-4476-427-A MAIN BOARD, COMPLETE (AEP, UK)
A-4476-433-A MAIN BOARD, COMPLETE (US)
A-4476-436-A MAIN BOARD, COMPLETE (AUS)
A-4476-439-A MAIN BOARD, COMPLETE (SP)
*********************
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 1-104-660-11 ELECT 47uF 20% 16V
C206 1-127-876-11 CERAMIC 0.01uF 10% 50V
C207 1-126-956-11 ELECT 0.1uF 20% 50V
C301 1-126-963-11 ELECT 4.7uF 20% 50V
(AEP, UK)
C302 1-126-963-11 ELECT 4.7uF 20% 50V
(AEP, UK)
C303 1-126-964-11 ELECT 10uF 20% 50V
(AEP, UK)
C304 1-126-964-11 ELECT 10uF 20% 50V
(AEP, UK)
C305 1-110-335-11 MYLAR 100PF 5% 50V
(AEP, UK)
C306 1-110-335-11 MYLAR 100PF 5% 50V
(AEP, UK)
C307 1-126-963-11 ELECT 4.7uF 20% 50V
(AEP, UK)
C308 1-126-963-11 ELECT 4.7uF 20% 50V
(AEP, UK)
C319 1-126-934-11 ELECT 220uF 20% 16V
(AEP, UK)
C351 1-130-471-00 MYLAR 0.001uF 5% 50V
(AEP, UK)
C352 1-130-471-00 MYLAR 0.001uF 5% 50V
(AEP, UK)
C801 1-127-876-11 CERAMIC 0.01uF 10% 50V
(AEP, UK)
C802 1-104-660-11 ELECT 47uF 20% 16V
(AEP, UK)
C803 1-127-876-11 CERAMIC 0.01uF 10% 50V
(AEP, UK)
C804 1-127-876-11 CERAMIC 0.01uF 10% 50V
(AEP, UK)
C805 1-162-291-31 CERAMIC 560PF 10% 50V
(AEP, UK)
C806 1-128-808-11 CERAMIC 82PF 5% 50V
(AEP, UK)
C807 1-128-805-11 CERAMIC 47PF 5% 50V
(AEP, UK)
C808 1-126-961-11 ELECT 2.2uF 20% 50V
(AEP, UK)
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
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark
20
ST-SE370
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 1-104-660-11 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
< CONNECTOR >
*CNP701 1-568-936-11 PIN, CONNECTOR 9P
*CNP702 1-568-935-11 PIN, CONNECTOR 8P
*CNP901 1-580-230-11 PIN, CONNECTOR (PC BOARD) 2P
CNP951 1-564-321-00 PIN, CONNECTOR 2P
< DIODE >
D901 8-719-024-99 DIODE 11ES2-NTA2B
D902 8-719-024-99 DIODE 11ES2-NTA2B
D903 8-719-024-99 DIODE 11ES2-NTA2B
D904 8-719-024-99 DIODE 11ES2-NTA2B
D905 8-719-983-80 DIODE MTZJ-T-72-30
D906 8-719-109-93 DIODE MTZJ-T-72-6.2
D907 8-719-024-99 DIODE 11ES2-NTA2B
D908 8-719-911-19 DIODE 1SS133T-72
< IC >
IC201 8-759-812-35 IC LA1235
IC301 8-759-634-51 IC NJM4558D (AEP, UK)
IC801 8-759-541-48 IC BU1924 (AEP, UK)
IC901 8-759-820-09 IC LA5667
< JACK >
J301 1-778-940-11 JACK 2P (LINE OUT)
< COIL >
L351 1-410-509-11 INDUCTOR 10uH (AEP, UK)
L352 1-410-509-11 INDUCTOR 10uH (AEP, UK)
< TRANSFORMER>
0PT901 1-429-466-11 TRANSFORMER, POWER (US)
0PT901 1-429-467-11 TRANSFORMER, POWER (EXCEPT US)
< TRANSISTOR >
Q301 8-729-922-37 TRANSISTOR 2SD2144S-TP-UVW
Q302 8-729-922-37 TRANSISTOR 2SD2144S-TP-UVW
Q801 8-729-119-78 TRANSISTOR 2SC1740S-QRT (AEP, UK)
Q901 8-729-900-65 TRANSISTOR BN1L4M-TP
< RESISTOR >
R104 1-249-429-11 CARBON 10K 5% 1/4W
R105 1-249-429-11 CARBON 10K 5% 1/4W
R201 1-249-413-11 CARBON 470 5% 1/4W
0R202 1-249-405-11 CARBON 100 5% 1/4W
R301 1-249-441-11 CARBON 100K 5% 1/4W
(AEP, UK)
R302 1-249-441-11 CARBON 100K 5% 1/4W
(AEP, UK)
R303 1-249-441-11 CARBON 100K 5% 1/4W
(AEP, UK)
R304 1-249-441-11 CARBON 100K 5% 1/4W
(AEP, UK)
R305 1-249-429-11 CARBON 10K 5% 1/4W
(AEP, UK)
R306 1-249-429-11 CARBON 10K 5% 1/4W
(AEP, UK)
R307 1-249-425-11 CARBON 4.7K 5% 1/4W
(AEP, UK)
R308 1-249-425-11 CARBON 4.7K 5% 1/4W
(AEP, UK)
R309 1-249-413-11 CARBON 470 5% 1/4W
R310 1-249-413-11 CARBON 470 5% 1/4W
R311 1-249-417-11 CARBON 1K 5% 1/4W
R312 1-249-417-11 CARBON 1K 5% 1/4W
0R319 1-249-405-11 CARBON 100 5% 1/4W F
(AEP, UK)
0R320 1-249-405-11 CARBON 100 5% 1/4W F
(AEP, UK)
R321 1-249-393-11 CARBON 10 5% 1/4W
R351 1-249-437-11 CARBON 47K 5% 1/4W
R352 1-249-437-11 CARBON 47K 5% 1/4W
R801 1-249-429-11 CARBON 10K 5% 1/4W
(AEP, UK)
0R802 1-249-401-11 CARBON 47 5% 1/4W F
(AEP, UK)
R803 1-249-421-11 CARBON 2.2K 5% 1/4W
(AEP, UK)
R804 1-249-409-11 CARBON 220 5% 1/4W
(AEP, UK)
R805 1-247-807-31 CARBON 100 5% 1/4W
(AEP, UK)
R900 1-219-237-11 SOLID 3.3M 20% 1/2W
(US)
R901 1-249-437-11 CARBON 47K 5% 1/4W
R902 1-249-437-11 CARBON 47K 5% 1/4W
R903 1-249-441-11 CARBON 100K 5% 1/4W
R904 1-249-437-11 CARBON 47K 5% 1/4W
R905 1-249-413-11 CARBON 470 5% 1/4W
R906 1-249-413-11 CARBON 470 5% 1/4W
R907 1-249-413-11 CARBON 470 5% 1/4W
R908 1-249-413-11 CARBON 470 5% 1/4W
R909 1-249-413-11 CARBON 470 5% 1/4W
R910 1-249-413-11 CARBON 470 5% 1/4W
< VARIABLE RESISTOR >
RV201 1-241-765-11 RES, ADJ, CARBON 22K
< VIBRATOR >
X801 1-579-900-21 VIBRATOR, CRYSTAL (4.332MHz) (AEP, UK)
**************************************************************
1-681-066-11 SW BOARD
**********
< RESISTOR >
R763 1-249-424-11 CARBON 3.9K 5% 1/4W
The components identified by mark 0or dotted
line with mark 0are critical for safety.
Replace only with part number specified.
MAIN SW
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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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