Sony SRF-S54 / SRF-S56 (serv.man2) Service Manual ▷ View online
SRF-S54/S56
9
9
ON/OFF
1
2
3
4
5
6
7
8
9
10
14
13
12
11
OUT-1
OUT-2
DET IN
DET OUT
REF
VCC
GND
LP-OUT
LP-GAIN
LP-IN
HP-2
HP-1
IN-2
IN-1
POWER
SWITCH
MUTE
BIAS
AMP
AMP
1
2
3
4
5
6
7
8
9
10 MUTE
R-OUT
GND
L-OUT
VCC
PWR
R-IN
GND
L-IN
REG
5-2.
NOTE FOR PRINTED WIRING BOARD AND SCHEMATIC DIAGRAM
Note on Printed Wiring Board:
•
•
X
: parts extracted from the component side.
•
Y
: parts extracted from the conductor side.
•
W
: indicates side identified with part number.
•
z
: Through hole.
•
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Caution:
Pattern face side:
Pattern face side:
Parts on the pattern face side seen from
(Conductor Side)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Component Side)
the parts face are indicated.
Note on Schematic Diagram:
• All capacitors are in
• All capacitors are in
µ
F unless otherwise noted. pF:
µµ
F
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
C
: panel designation.
•
A
: B+ Line.
•
H
: adjustment for repair.
• Power voltage is dc 1.5V and fed with regulated dc power
supply from battery terminal.
• Voltages are dc with respect to ground under no-signal
(detuned) conditions.
no mark : FM
no mark : FM
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Signal path.
F
: FM
• IC Block Diagrams
IC1
CXA1129N-T4
IC2
LA3550M-TE-L
IC3
LA4537M-TE-L
1
2
6
8
FM/TV
RF AMP
FM/TV
MIX
FM/TV
1ST LOCAL
OSC
AFC
AM
RF AMP
OVER LOAD
AGC
MIX
1
MIX
2
PSN
1
PSN
2
AGC
AF AMP
LPF
DETUNE
DET
FM
LPF
AM
BPF
LOCAL
OSC
1/2
COUNTER
FM/TV
SELECT
FM
DISCRI
FM
LIMITTER
AMP
AM IF AMP
(FM TUN IND)
AM
DET
AGC
TUNING
IND
VCO
MUTE
SEP
CONTROL
ST.
DECORDER
INPUT
BUFF
VCO
LEVEL
CONTROL
BUFF
AMP
DC
AMP
PD
SYNC
DET
R CH
AMP
L CH
AMP
AMP
LOAD
SELECT
1/2
COUNTER
FM/AM
SELECT
M/ST.SW
ST.IND
FM/TV
30 29
25
24 23
26
28
27
22
20
3 4 5
7
9
10
11
12
13 14
15
16
17
18
19
21
FM/AM
FM/TV
38KHz
0
π/2
FM/TV
FM/AM
19KHz
π/2
19KHz
0
38KHz
FM IN
TV IN
NC
FM RF
GAIN ADJ
OL AGC
2ND OSC
AM OSC
TUN IND
PLL1
PLL2
VCO OSC
VCO CONT
R OUT
L OUT
ST IND
PD2
PD1
MPX IN
DET OUT
MUTE
AGC2
NC
FM IF
NC
TV OSC
FM OSC
AGC1
AM IN
NC
SRF-S54/S56
10
10
5-3.
PRINTED WIRING BOARD
C22
S1
C9
CT1
CT2
R18
L3
C27
C35
C38
C33
C32
S2
(STEREO/MONO)
MONO ST
R16
E C B
Q1
MAIN BOARD
(COMPONENT SIDE)
(11)
11
1-685-791-
RV1
MAIN BOARD
(CONDUCTOR SIDE)
(11)
11
1-685-791-
R13
R12
L6
L7
L5
C1
TP1
(RF IN)
C11
C13
C12
C46
C45
C15
C14
C8
L8
C40
C10
R3
C4
C3
C7
C6
C5
C44
C2
IC1
C29
C28
TP5
(VCO)
TP4
(OSC)
C23
R1
R4
C25
C26
R5
C20
C18
R17
C19
C17
R7
R8
IC2
C37
C36
IC3
C31
C30
C21
L1
CV1
L4
L2
C24
J1
-1
-2
S1
(POWER, MEGABASS)
OFF
ON
MEGABASS
1
5
10
6
1
7
14
8
30
16
1
15
CV1-2
CV1-1
TUNE
DRY BATTERY
SIZE "AAA"
(IEC DESIGNATION R03)
1PC. 1.5V
VOLUME
-1
-2
+
+
+
+
+
+
+
+
+
+
SRF-S54/S56
11
11
5-4.
SCHEMATIC DIAGRAM
•
See page 9 for IC Block Diagrams.
J1
L5
C28
C29
C38
R7
C19
C20
C21
R17
C22
C17
R4
R5
C27
C4
C40
L8
C5
C6
C7
C23
CV1-1
C1
CV1-2
C9
C44
R18
C14
C13
C10
R3
C36
C37
C33
C32
R12
R13
L7
L6
RV1
IC2
IC3
IC1
L3
L1
L2
L4
S2
C8
C35
C26
C25
C12
C11
C15
R8
C18
Q1
S1-2
TP1
S1-1
CT1
CT2
C45
R16
R1
C2
C31
C30
C3
C24
0.47
0.47
22
6.3V
150k
0.047
1000p
0.1
2.2k
1
0.47
0
0
220
4V
0.22
100p
0.22
0.015
0.015
100p
18p
22p
0.1
47k
1
10
4V
4V
1
6.8
100p
100p
100
4V
100
4V
100k
100k
10k/10k
LA3550M
LA4537M
CXA1129N
1
220
4V
10
4V
3.3
4V
1
4.7
4V
100p
150k
0.47
2SA1576A
(RF IN)
100p
1k
220
4.7
4V
0.1
0.1
1
5600p
100V
IN
1
IN
2
H
P
1
H
P
2
LP
IN
LP
G
A
IN
LP
O
U
T
O
U
T1
OU
T2
D
ETIN
D
ETO
U
T
R
EF
V
C
C
G
N
D
OUT1
GND
OUT2
MUTE
SW
POWER
SW
IN1
PRE
IN2
REF
GND
FM
R
F
IN
IN
TV
R
F
+V
C
C
FE
FM
R
F
IM
A
G
E
A
D
J
A
G
C
O
L
FM
2N
D
O
S
C
O
S
C
A
M
TU
N
IN
D
P
LL
V
C
O
V
C
O
CT
R
L
R
C
H
L C
H
P
LL 1
P
LL 2
G
N
D
FM
IN
P
O
1
P
O
2
ST
IN
D
IN
M
P
X
O
U
T
D
ET
M
U
TE
A
G
C
+V
C
C
O
S
C
TV
IS
T
TV
IS
T
O
S
C
A
FC
A
G
C
IN
A
M
R
F
G
N
D
FE
VCC
AMP
HEADPHONE
DRY BATTERY
1PC. 1.5V
ON
OFF
(POWER,MEGABASS)
MEGABASS
S1
RIPPLE
FILTER
-1
-2
VOLUME
AMP
BASS BOOST
FM RF AMP,
IF AMP,MIX,
AF AMP
CV1
TUNE
(STEREO/MONO)
ST
MONO
OSC,DET,
SIZE"AAA"
(IEC DESIGNATION R03)
1µH
1µH
1µH
1µH
TP5
(VCO)
TP4
(OSC)
SRF-S54/S56
12
12
SECTION 6
EXPLODED VIEW
• Items marked “*” are not stocked since they
are seldom required for routine service. Some
delay should be anticipated when ordering
these items.
delay should be anticipated when ordering
these items.
• The mechanical parts with no reference num-
ber in the exploded views are not supplied.
• Accessories are given in the last of the elec-
trical parts list.
NOTE:
• -XX and -X mean standardized parts, so they
may have some difference from the original
one.
one.
• Color Indication of Appearance Parts
Example:
KNOB, BALANCE (WHITE) . . . (RED)
KNOB, BALANCE (WHITE) . . . (RED)
↑
↑
Parts Color Cabinet's Color
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
1
X-3382-754-1 CABINET (FRONT) ASSY (SC) (SILVER) (S54)
1
X-3382-755-1 CABINET (FRONT) ASSY (LC) (BLUE) (S54)
1
X-3382-756-1 CABINET (FRONT) ASSY (WC) (WHITE) (S56)
1
X-3382-757-1 CABINET (FRONT) ASSY (VC) (VIOLET) (S56)
2
3-244-849-01 KNOB (POWER) (SILVER) (S54)
2
3-244-849-11 KNOB (POWER) (BLUE) (S54)
2
3-244-849-21 KNOB (POWER) (WHITE) (S56)
2
3-244-849-31 KNOB (POWER) (VIOLET) (S56)
3
3-244-852-01 GEAR (TUNING CAPACITOR)
4
3-244-851-01 KNOB (TUNE)
5
3-238-306-01 WASHER
6
3-244-860-01 TERMINAL (
−
), BATTERY
7
3-244-848-01 LID, BATTERY CASE (SILVER) (S54)
7
3-244-848-11 LID, BATTERY CASE (BLUE) (S54)
7
3-244-848-21 LID, BATTERY CASE (WHITE) (S56)
7
3-244-848-31 LID, BATTERY CASE (VIOLET) (S56)
8
3-244-846-22 REAR, CABINET (SILVER) (S54)
8
3-244-846-32 REAR, CABINET (BLUE) (S54)
8
3-244-846-42 CABINET (REAR) (WHITE) (S56)
8
3-244-846-52 CABINET (REAR) (VIOLET) (S56)
9
3-244-861-01 SPRING (CLIP)
10
3-244-857-01 CLIP
11
3-318-203-21 SCREW (B1.7X8), TAPPING
(for SILVER) (S54)/(for VIOLET, WHITE) (S56)
11
3-318-203-31 SCREW (B1.7X8), TAPPING (for BLUE) (S54)
12
3-244-850-01 KNOB (ST) (SILVER) (S54)
12
3-244-850-11 KNOB (ST) (BLUE) (S54)
12
3-244-850-21 KNOB (ST) (WHITE) (S56)
12
3-244-850-31 KNOB (ST) (VIOLET) (S56)
13
3-244-859-01 TERMINAL (+), BATTERY
14
3-244-854-01 POINTER
* 15
A-3178-798-A MAIN BOARD, COMPLETE
16
3-704-197-22 SCREW (M1.4X2.5), LOCKING
17
3-244-853-01 SHAFT (TUNING CAPACITOR)
18
7-626-305-31 SPRING-PIN 1X8
1
2
3
4
5
6
7
8
9
10
18
11
12
13
14
15
16
17
SECTION 7
ELECTRICAL PARTS LIST
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
MAIN
*
A-3178-798-A MAIN BOARD, COMPLETE
*********************
3-244-853-01 SHAFT (TUNING CAPACITOR)
3-704-197-22 SCREW (M1.4X2.5) , LOCKING
3-704-197-22 SCREW (M1.4X2.5) , LOCKING
< CAPACITOR >
C1
1-162-918-11 CERAMIC CHIP
18PF
5%
50V
C2
1-135-151-21 TANTALUM CHIP 4.7uF
20%
4V
C3
1-115-156-11 CERAMIC CHIP
1uF
10V
C4
1-165-128-11 CERAMIC CHIP
0.22uF
16V
C5
1-165-128-11 CERAMIC CHIP
0.22uF
16V
C6
1-164-245-11 CERAMIC CHIP
0.015uF
10%
25V
C7
1-164-245-11 CERAMIC CHIP
0.015uF
10%
25V
C8
1-115-156-11 CERAMIC CHIP
1uF
10V
C9
1-162-919-11 CERAMIC CHIP
22PF
5%
50V
C10
1-115-156-11 CERAMIC CHIP
1uF
10V
C11
1-135-151-21 TANTALUM CHIP 4.7uF
20%
4V
C12
1-115-156-11 CERAMIC CHIP
1uF
10V
C13
1-135-201-11 TANTALUM CHIP 10uF
20%
4V
C14
1-115-156-11 CERAMIC CHIP
1uF
10V
C15
1-162-927-11 CERAMIC CHIP
100PF
5%
50V
C17
1-113-619-11 CERAMIC CHIP
0.47uF
10V
C18
1-113-619-11 CERAMIC CHIP
0.47uF
10V
C19
1-164-361-11 CERAMIC CHIP
0.047uF
16V
C20
1-162-964-11 CERAMIC CHIP
0.001uF
10%
50V
C21
1-164-156-11 CERAMIC CHIP
0.1uF
25V
C22
1-115-156-11 CERAMIC CHIP
1uF
10V
C23
1-162-927-11 CERAMIC CHIP
100PF
5%
50V
C24
1-136-683-11 FILM
0.0056uF 5%
100V
C25
1-104-912-11 TANTALUM CHIP 3.3uF
20%
4V
C26
1-135-201-11 TANTALUM CHIP 10uF
20%
4V
C27
1-126-246-11 ELECT CHIP
220uF
20%
4V
C28
1-113-619-11 CERAMIC CHIP
0.47uF
10V
C29
1-113-619-11 CERAMIC CHIP
0.47uF
10V
C30
1-164-156-11 CERAMIC CHIP
0.1uF
25V
C31
1-164-156-11 CERAMIC CHIP
0.1uF
25V
C32
1-126-209-11 ELECT CHIP
100uF
20%
4V
C33
1-126-209-11 ELECT CHIP
100uF
20%
4V
C35
1-126-246-11 ELECT CHIP
220uF
20%
4V
C36
1-162-927-11 CERAMIC CHIP
100PF
5%
50V
C37
1-162-927-11 CERAMIC CHIP
100PF
5%
50V
C38
1-124-778-00 ELECT CHIP
22uF
20%
6.3V
C40
1-162-927-11 CERAMIC CHIP
100PF
5%
50V
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.
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.
one.
• 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
• Items marked “*” are not stocked since they
are seldom required for routine service.
Some delay should be anticipated when order-
ing these items.
Some delay should be anticipated when order-
ing these items.
• SEMICONDUCTORS
In each case, u:
µ
, for example:
uA. .
:
µ
A. .
uPA. . :
µ
PA. .
uPB. . :
µ
PB. .
uPC. . :
µ
PC. .
uPD. . :
µ
PD. .
• CAPACITORS
uF:
µ
F
• COILS
uH:
µ
H
When indicating parts by reference
number, please include the board.
number, please include the board.
C44
1-164-156-11 CERAMIC CHIP
0.1uF
25V
C45
1-162-927-11 CERAMIC CHIP
100PF
5%
50V
< TRIMMER >
CT1
1-141-615-21 CAP, ADJ
CT2
1-141-615-21 CAP, ADJ
< VARIABLE CAPACITOR >
CV1
1-141-521-13 CAP, VAR (TUNE)
< IC >
IC1
8-752-061-76 IC CXA1129N-T4
IC2
6-700-365-01 IC LA3550M-TE-L
IC3
8-759-835-58 IC LA4537M-TE-L
< JACK >
J1
1-563-857-11 JACK, HEADPHONE (i)
< COIL >
L1
1-409-989-11 COIL, AIR-CORE
L2
1-409-991-11 COIL, AIR-CORE
L3
1-409-971-11 COIL (VCO)
L4
1-409-990-11 COIL, AIR-CORE
L5
1-412-979-21 INDUCTOR CHIP 1uH
L6
1-412-979-21 INDUCTOR CHIP 1uH
L7
1-412-979-21 INDUCTOR CHIP 1uH
L8
1-412-979-21 INDUCTOR CHIP 1uH
< TRANSISTOR >
Q1
8-729-026-52 TRANSISTOR
2SA1576A-T106-R
< RESISTOR >
R1
1-216-813-11 METAL CHIP
220
5%
1/10W
R3
1-216-795-11 METAL CHIP
6.8
5%
1/10W
R4
1-216-864-11 SHORT CHIP
0
R5
1-216-864-11 SHORT CHIP
0
R7
1-216-847-11 METAL CHIP
150K
5%
1/10W
R8
1-216-847-11 METAL CHIP
150K
5%
1/10W
R12
1-216-845-11 METAL CHIP
100K
5%
1/10W
R13
1-216-845-11 METAL CHIP
100K
5%
1/10W
R16
1-216-821-11 METAL CHIP
1K
5%
1/10W
R17
1-216-825-11 METAL CHIP
2.2K
5%
1/10W
Click on the first or last page to see other SRF-S54 / SRF-S56 (serv.man2) service manuals if exist.