Sony ST-SE520 (serv.man2) Service Manual ▷ View online
– 17 –
4-6. IC BLOCK DIAGRAMS
• Tuner section
IC201 LA1235
3
6
11
2
5
8
1
4
14
15
12
9
10
16
13
7
FM IF AMP
LIMITER
AF/NULL
METER
QUADRATURE
DET
AF AMP
IF OFF
NULL METER
SHORTING
LEVEL
DET
METER
DRIVE
MUTING
CIRCUIT
CIRCUIT
DETUNE
DET
GND
B+
OSC
1/2
1/2
PHASE
WAVEFORM
SEP.
GATE
SAMPLE
& HOLD
BUFFER
REGULATOR
PHASE
COMPARATOR
PHASE
COMPARATOR 2
MUTE
TRIGGER
1
2
3
4
5
6 7
8
9
10
20
19 18
17
16
15
14 13
12
11
AMP
AMP
AMP
LAMP
VCO STOP
ST
LOUT
ROUT
LHC
RHC
POUT
IN
VCC
GND
VCO
LPF1A
LPF1B
DETIN
LPF2A
LPF2B
SUBIN
SUBOUT
MON
IC401 IR3R42
IC403 TC9215P
1
2
3
4
REG
GND
CONTROL
REG
5
6
7
IC901 LA5667
3
S10
SW1
SW2
4
S11
1
GND
2
OFF
5
C12
6
S20
7
S21
8
14
13
16
15
12
11
10
9
VSS
S41
S42
VDD
S40
S34
S32
S31
S30
SW3
SW3'
SW4'
SW4
– 18 –
SECTION 5
EXPLODED VIEW
NOTE:
• Items marked “*” are not stocked since they are
seldom required for routine service. Some delay
should be anticipated when ordering these items.
should be anticipated when ordering these items.
• The mechanical parts with no reference number in
the exploded views are not supplied.
• Accessories and packing materials are given in the
last of this parts list.
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
The components identified by
mark ! or dotted line with mark
! are critical for safety.
Replace only with part number
specified.
mark ! or dotted line with mark
! are critical for safety.
Replace only with part number
specified.
* 15
3-697-679-01 CUSHION, LS
16
X-4947-207-1 FOOT ASSY (F50150S)
* 17
4-981-268-61 PANEL, BACK
18
3-703-244-00 BUSHING, CORD
* 19
A-4407-379-A MAIN BOARD, COMPLETE
20
4-951-620-01 SCREW (2.6X8), +BVTP
21
3-704-242-01 SCREW, TERMINAL, + BVTP CLAW
22
3-704-515-31 SCREW (BV/RING)
23
7-685-646-79 SCREW +BVTP 3X8 TYPE2 IT-3
24
4-963-404-21 EMBLEM (5-A), SONY
FL701
1-517-141-11 INDICATOR TUBE, FLUORESCENT
!
PC901
1-575-651-21 CORD, POWER
1
4-997-882-01 KNOB (T)
2
X-4949-584-3 PANEL ASSY, FRONT
3
4-977-593-11 RING (DIA. 50), ORNAMENTAL
4
4-977-358-11 CUSHION
5
3-931-429-71 BUTTON (POWER)
* 6
1-668-819-11 AC SW BOARD
7
4-981-264-01 BUTTON (4)
8
4-997-881-01 ESCUTCHEON
* 9
1-668-820-11 ENCODER BOARD
* 10
A-4407-380-A DISPLAY BOARD, COMPLETE
* 11
4-943-107-11 HOLDER (FL TUBE)
12
3-710-901-11 SCREW, TAPPING
* 13
4-978-901-41 CASE (407026)
* 14
3-346-265-31 HOLDER, PC BOARD
1
2
3
4
5
24
6
7
8
9
23
20
20
20
20
10
11
12
12
14
14
15
16
23
23
17
18
21
PC901
19
22
12
13
FL701
Supplied
with RV701
with RV701
7
23
23
– 19 –
• SEMICONDUCTORS
In each case, u: µ , for example:
uA...: µ A..., uPA...: µ PA..., uPB...: µ PB...,
uPC...: µ PC..., uPD...: µ PD...
uA...: µ A..., uPA...: µ PA..., uPB...: µ PB...,
uPC...: µ PC..., uPD...: µ PD...
• CAPACITORS
uF : µ F
• COILS
uH : µ H
• Due to standardization, replacements in the parts list
may be different from the parts specified in the
diagrams or the components used on the set.
diagrams or the components used on the set.
• -XX, -X mean standardized parts, so they may have
some difference from the original one.
• Items marked “*” are not stocked since they are
seldom required for routine service. Some delay
should be anticipated when ordering these items.
should be anticipated when ordering these items.
• RESISTORS
All resistors are in ohms
METAL: Metal-film resistor
METAL OXIDE: Metal Oxide-film resistor
F : nonflammable
METAL: Metal-film resistor
METAL OXIDE: Metal Oxide-film resistor
F : nonflammable
SECTION 6
ELECTRICAL PARTS LIST
Note:
When indicating parts by reference
number, please include the board
name.
number, please include the board
name.
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
AC SW
The components identified by
mark ! or dotted line with mark
! are critical for safety.
Replace only with part number
specified.
mark ! or dotted line with mark
! are critical for safety.
Replace only with part number
specified.
DISPLAY
*
1-668-819-11 AC SW BOARD
***********
< CAPACITOR >
!
C951
1-113-915-11 CERAMIC
0.001uF
20%
250V
< SWITCH >
!
S901
1-572-267-51 SWITCH, PUSH (AC POWER)(1 KEY)(U)
**************************************************************
*
A-4407-380-A DISPLAY BOARD, COMPLETE
***********************
< CAPACITOR >
C701
1-162-306-11 CERAMIC
0.01uF
20%
16V
C702
1-126-959-11 ELECT
0.47uF
20%
50V
C703
1-162-306-11 CERAMIC
0.01uF
20%
16V
C704
1-162-306-11 CERAMIC
0.01uF
20%
16V
C705
1-104-905-11 CAPACITOR
0.22F
5.5V
C706
1-162-306-11 CERAMIC
0.01uF
20%
16V
C707
1-162-306-11 CERAMIC
0.01uF
20%
16V
C708
1-126-964-11 ELECT
10uF
20%
50V
C709
1-162-306-11 CERAMIC
0.01uF
20%
16V
C710
1-162-209-31 CERAMIC
27PF
5%
50V
C711
1-162-209-31 CERAMIC
27PF
5%
50V
C712
1-126-967-11 ELECT
47uF
20%
16V
C713
1-126-965-11 ELECT
22uF
20%
50V
C716
1-164-159-21 CERAMIC
0.1uF
50V
C717
1-126-947-11 ELECT
47uF
20%
35V
C718
1-162-306-11 CERAMIC
0.01uF
20%
16V
< CONNECTOR >
* CN701
1-568-935-11 PIN, CONNECTOR 8P
* CN702
1-568-936-11 PIN, CONNECTOR 9P
< DIODE >
D701
8-719-991-33 DIODE 1SS133T-77
D702
8-719-991-33 DIODE 1SS133T-77
D703
8-719-991-33 DIODE 1SS133T-77
D704
8-719-991-33 DIODE 1SS133T-77
< FLUORESCENT INDICATOR >
FL701
1-517-141-11 INDICATOR TUBE, FLUORESCENT
< IC >
IC701
8-759-325-46 IC uPD78044AGF-041-3B9
IC702
8-749-014-66 IC NJL64H400A
< TRANSISTOR >
Q701
8-729-119-78 TRANSISTOR 2SC2785-HFE
< RESISTOR >
R701
1-249-419-11 CARBON
1.5K
5%
1/4W
F
R702
1-249-419-11 CARBON
1.5K
5%
1/4W
F
R703
1-247-807-31 CARBON
100
5%
1/4W
R704
1-249-441-11 CARBON
100K
5%
1/4W
R705
1-247-895-91 CARBON
470K
5%
1/4W
R706
1-247-863-91 CARBON
22K
5%
1/4W
R707
1-249-417-11 CARBON
1K
5%
1/4W
F
R708
1-249-401-11 CARBON
47
5%
1/4W
F
R709
1-249-441-11 CARBON
100K
5%
1/4W
R710
1-249-441-11 CARBON
100K
5%
1/4W
R711
1-247-807-31 CARBON
100
5%
1/4W
R712
1-249-429-11 CARBON
10K
5%
1/4W
R714
1-249-429-11 CARBON
10K
5%
1/4W
R715
1-249-441-11 CARBON
100K
5%
1/4W
R716
1-247-807-31 CARBON
100
5%
1/4W
R717
1-247-807-31 CARBON
100
5%
1/4W
R718
1-247-807-31 CARBON
100
5%
1/4W
R719
1-247-807-31 CARBON
100
5%
1/4W
R720
1-247-807-31 CARBON
100
5%
1/4W
R721
1-247-807-31 CARBON
100
5%
1/4W
R722
1-247-807-31 CARBON
100
5%
1/4W
R723
1-247-807-31 CARBON
100
5%
1/4W
R724
1-247-807-31 CARBON
100
5%
1/4W
R725
1-247-807-31 CARBON
100
5%
1/4W
R726
1-247-807-31 CARBON
100
5%
1/4W
R750
1-247-807-31 CARBON
100
5%
1/4W
R751
1-249-406-11 CARBON
120
5%
1/4W
F
R752
1-249-406-11 CARBON
120
5%
1/4W
F
R753
1-249-407-11 CARBON
150
5%
1/4W
F
R754
1-249-408-11 CARBON
180
5%
1/4W
F
R755
1-247-815-91 CARBON
220
5%
1/4W
R756
1-249-410-11 CARBON
270
5%
1/4W
F
R757
1-249-411-11 CARBON
330
5%
1/4W
R758
1-249-413-11 CARBON
470
5%
1/4W
F
R759
1-249-414-11 CARBON
560
5%
1/4W
F
R760
1-249-416-11 CARBON
820
5%
1/4W
F
R761
1-249-418-11 CARBON
1.2K
5%
1/4W
F
R762
1-249-421-11 CARBON
2.2K
5%
1/4W
F
– 20 –
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
DISPLAY
MAIN
ENCODER
R763
1-249-424-11 CARBON
3.9K
5%
1/4W F
R764
1-249-430-11 CARBON
12K
5%
1/4W
R765
1-247-815-91 CARBON
220
5%
1/4W
R766
1-249-410-11 CARBON
270
5%
1/4W F
R767
1-249-408-11 CARBON
180
5%
1/4W F
R768
1-247-815-91 CARBON
220
5%
1/4W
R769
1-249-410-11 CARBON
270
5%
1/4W F
R770
1-249-411-11 CARBON
330
5%
1/4W
R771
1-249-413-11 CARBON
470
5%
1/4W F
R772
1-249-414-11 CARBON
560
5%
1/4W F
< SWITCH >
S701
1-554-303-21 SWITCH, TACTILE (1)
S702
1-554-303-21 SWITCH, TACTILE (2)
S703
1-554-303-21 SWITCH, TACTILE (3)
S704
1-554-303-21 SWITCH, TACTILE (4)
S705
1-554-303-21 SWITCH, TACTILE (5)
S706
1-554-303-21 SWITCH, TACTILE (6)
S707
1-554-303-21 SWITCH, TACTILE (7)
S708
1-554-303-21 SWITCH, TACTILE (8)
S709
1-554-303-21 SWITCH, TACTILE (9)
S710
1-554-303-21 SWITCH, TACTILE (0)
S711
1-554-303-21 SWITCH, TACTILE (TUNE MODE)
S712
1-554-303-21 SWITCH, TACTILE (SHIFT)
S713
1-554-303-21 SWITCH, TACTILE (DIRECT)
S715
1-554-303-21 SWITCH, TACTILE (RETURN)
S721
1-554-303-21 SWITCH, TACTILE (DISPLAY)
S722
1-554-303-21 SWITCH, TACTILE (FM MODE)
S723
1-554-303-21 SWITCH, TACTILE (BAND)
S724
1-554-303-21 SWITCH, TACTILE (MEMORY)
S725
1-554-303-21 SWITCH, TACTILE (MENU)
**************************************************************
*
1-668-820-11 ENCODER BOARD
*************
< VARIABLE RESISTOR >
RV901
1-467-703-11 ENCODER, ROTARY (TUNING/SELECT)
< SWITCH >
S714
1-554-303-21 SWITCH, TACTILE (ENTER)
**************************************************************
*
A-4407-379-A MAIN BOARD, COMPLETE
********************
*
4-943-107-11 HOLDER (FL TUBE)
7-685-646-79 SCREW +BVTP 3X8 TYPE2
7-685-646-79 SCREW +BVTP 3X8 TYPE2
< CAPACITOR >
C101
1-162-306-11 CERAMIC
0.01uF
20%
16V
C102
1-126-964-11 ELECT
10uF
20%
50V
C103
1-162-306-11 CERAMIC
0.01uF
20%
16V
C104
1-126-964-11 ELECT
10uF
20%
50V
C105
1-124-463-00 ELECT
0.1uF
20%
50V
C201
1-162-288-31 CERAMIC
330PF
10%
50V
C202
1-162-306-11 CERAMIC
0.01uF
20%
16V
C203
1-162-306-11 CERAMIC
0.01uF
20%
16V
C204
1-162-306-11 CERAMIC
0.01uF
20%
16V
C205
1-126-967-11 ELECT
47uF
20%
16V
C206
1-162-306-11 CERAMIC
0.01uF
20%
16V
C301
1-126-962-11 ELECT
3.3uF
20%
50V
C302
1-126-962-11 ELECT
3.3uF
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
C308
1-126-962-11 ELECT
3.3uF
20%
50V
C309
1-126-962-11 ELECT
3.3uF
20%
50V
C319
1-126-967-11 ELECT
47uF
20%
16V
C401
1-162-294-31 CERAMIC
0.001uF
10%
50V
C402
1-130-014-00 FILM
470PF
5%
50V
C403
1-126-959-11 ELECT
0.47uF
20%
50V
C404
1-126-959-11 ELECT
0.47uF
20%
50V
C405
1-136-161-00 FILM
0.047uF
5%
50V
C406
1-126-960-11 ELECT
1uF
20%
50V
C407
1-126-960-11 ELECT
1uF
20%
50V
C408
1-126-967-11 ELECT
47uF
20%
16V
C409
1-162-306-11 CERAMIC
0.01uF
20%
16V
C410
1-130-736-11 FILM
0.01uF
5%
50V
C411
1-130-736-11 FILM
0.01uF
5%
50V
C412
1-130-471-00 MYLAR
0.001uF
5%
50V
C413
1-130-471-00 MYLAR
0.001uF
5%
50V
C414
1-162-288-31 CERAMIC
330PF
10%
50V
C417
1-126-967-11 ELECT
47uF
20%
16V
C418
1-130-483-00 MYLAR
0.01uF
5%
50V
C419
1-130-483-00 MYLAR
0.01uF
5%
50V
C420
1-126-964-11 ELECT
10uF
20%
50V
C421
1-126-964-11 ELECT
10uF
20%
50V
C422
1-126-962-11 ELECT
3.3uF
20%
50V
C423
1-126-962-11 ELECT
3.3uF
20%
50V
C424
1-130-482-00 MYLAR
0.0082uF
5%
50V
C425
1-130-482-00 MYLAR
0.0082uF
5%
50V
C790
1-126-964-11 ELECT
10uF
20%
50V
C901
1-101-004-00 CERAMIC
0.01uF
50V
C902
1-101-004-00 CERAMIC
0.01uF
50V
C904
1-126-952-11 ELECT
1000uF
20%
35V
C905
1-126-952-11 ELECT
1000uF
20%
35V
C906
1-126-949-11 ELECT
220uF
20%
35V
C907
1-126-959-11 ELECT
0.47uF
20%
50V
C908
1-126-964-11 ELECT
10uF
20%
50V
C909
1-126-967-11 ELECT
47uF
20%
16V
C910
1-126-935-11 ELECT
470uF
20%
6.3V
C911
1-126-947-11 ELECT
47uF
20%
35V
C952
1-161-379-00 CERAMIC
0.01uF
20%
25V
< JACK >
CNJ301 1-568-250-11 JACK, PIN 2P (LINE OUT)
< CONNECTOR >
CNP901 1-580-230-11 PIN, CONNECTOR (PC BOARD) 2P
CNP951 1-564-321-00 PIN, CONNECTOR 2P
CNP951 1-564-321-00 PIN, CONNECTOR 2P
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