Sony SRF-M37 Service Manual ▷ View online
9
9
SRF-M37
4-3.
Schematic Diagram
• See page 6 for Waveforms. • See page 10 for IC Block Diagrams.
IC1
JC3
BPF1
JC6
R3
R4
C29
C2
Q2
Q1
JC8
C38
Q3
CF1
CF2
C
F3
C40
R21
Q4
C12
CT1
C3
C60
R6
R5
C4
C20
D1
D2
C19
L12
Q
5
C17
C18
CT2
C14
JC18
R11
D4
C25
C13
R15
C27
C23
C24
C21
R14
R
32
C35
JC
1
L2
C9
C6
C7
C8
R7
C37
D3
C36
R2
0
JC13
R19
Q6
Q7
Q8
JC4
JC9
S1
R2
R1
C1
BP1
R29
C31
C32
C33
C3
0
C
39
C
42
C
41
C
44
C
45
C48
RV1
C46
C47
R22
R23
JC11
TP15
TP17
TP13
TP14
IC2
C49
C50
C
51
C52
R26
JC12
R27
R28
C54
C55
J1
D6
D7
TP1
TP2
TP3
TP4
TP5
TP6
TP7
TP8
TP9
R112
TP101
TP1
07
TP108
IC102
IC103
R127
R128
R130
C118
C101
R105
R103
R106
C103
C104
C105
C106
C109
C107
C108
C110
C111
C127
R111
JC107
C131
JC110
R108
R110
IC101
W3
W3
R143
R126
R109
C116
C112
C113
C11
4
L101
R113
JC101
JC103
JC105
S101
R129
C132
JC109
R115
R117
R118
R119
R120
R121
R122
R123
R124
R125
C115
C117
L102
C135
JC113
R132
C1
20
R133
C121
Q104
Q105
C134
TP11
3
R144
R14
6
C140
C14
1
C142
JC108
C119
R
131
JC104
R134
C1
22
D102
R135
Q106
Q107
R
138
R
136
R137
D103
C
124
C125
C126
R
139
JC
112
C102
D101
Q103
JC
106
Q102
R
101
Q101
R10
2
D
105
D
104
L103
L7
TP109
TP110
TP111
TP112
TP102
TP103
TP104
TP105
R12
R
8
R30
JC5
JC7
R114
C22
R140
S107
S112
JC10
C123
T101
TP10
C43
S102
S105
S108
S111
S103
S106
S109
S104
S110
TP12
C53
L1
R13
W1
W1
W2
W2
X101
L3
L4
TA2154AFN
GFMB7
22k
220
DTA114TUA
2SC3931
DTC1
44TU
A
10.7MHz
450KHz
D
IS
CRI
1k
D
TC14
4TU
A
10p
1000p
100p
100k
100k
1000p
HVU
300A
HVU300A
47p
2SK209
8p
10p
10p
3p
10k
KV1610S-TL2
470p
1M
1000p
22p
2p
2.2k
1k
2p
1000p
100p
22p
1
00k
H
VU3
00A
22k
220
2SC3931
DTA114YUA
DTC144TUA
100
100
2.2
4
V
4V
16V
6.3V
10
k/10k
1k
1k
LA4535M
4700p
4700p
22
10k
10k
4V
4V
IPS226
IPS226
10k
XC61CN1002NR
XC61CN0802NR
1M
10k
470k
1M
10k
1k
47p
10p
6.3V
3p
100k
1k
1k
TC9329FA
100k
100k
1k
100k
100k
1k
1k
1k
4.7k
4.7k
4.7k
4.7k
4.7k
4.7k
4.7k
2.2k
10
00p
10k
2SC4081
2SC4081
1000p
100k
100k
100
0p
100
0p
100
0p
10k
100k
ISS355
1k
2SC4081
2SC4081
1
00k
47k
100k
UD
ZS
TE-1713B
4V
10
0.047F
S.CAP
RB521S
2SA1576
DTC144TUA
1k
2SB97O
100k
UDZSTE-174.7B
UD
ZSTE-174.7B
220
100k
10
1k
100k
10p
D/D TRANS
(VT)
(ANT)
4V
FM
RF
CO
IL
220
75KHz
MW FERRITE
ROD ANTENNA
M
W
OS
C COIL
10
10
SRF-M37
4-4.
IC Block Diagrams
IC1 TA2154AFN-EL
IC2 LA4535M-TE-L
BIAS
POWER
SWITCH
AMP 1
AMP 2
MUTE
CIRCUIT
MUTE SWITCH
POWER SWITCH
OUT 1
OUT 2
POWER GND
V
CC
REF
IN 2
IN 1
PRE GND
6
7
8
9
10
5
4
3
2
1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
20
21
19
18
17
16
22
23
25
26
27
28
24
30
29
15
TV RF OUT
FM RF OUT
AM BYP
ASS
AM RF IN
RFVCC
AM OSC
TV FM OSC
OSC OUT
MODE2
MODE1
IF REQ
IF COUNT
LPF2B
LPF2A
L OUT
R OUT
LPF1
MPX IN
DET OUT
QUAD
AM IF IN
GND
FM IF IN
VCC
AGC
AM MIX
FM MIX
RF GND
FM RF IN
TV RF IN
AM
OSC
AM
MIX
FM/AM/TV
PW SW
SW
1/2
BUFF
LEVEL
DET
AM
DET
1/8 or
1/16
TV
OSC
FM
OSC
IF
BUFF
BUFF
BUFF
FM/TV
MIX
FM
RM
RM
TV
RF
RF
FM
DET
FM MPX
FM
IF
AF
AGC
AM
IF
4-5.
IC Pin Function Description
• IC101
TC9329FA-123 (DIGITAL TUNING, SYSTEM CONTROL)
Pin No.
1 to 4
5 to 17
18
19
20 to 22
23 to 26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42 to 45
46
47, 48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
I/O
O
O
I
I
O
I
—
O
O
O
O
O
I
I
I
I
—
I
—
O
—
—
O
I
O
O
O
O
—
I
O
I
—
—
—
—
—
—
—
—
Pin Name
COM1 to COM4
S1 to S13
TEST
MB SW
KS0 to KS2
KR0 to KR3
VDD
BEEP
AM BAND
LW/MW1
BAND2
BAND1
TEST
HOLD
VDET
IF IN2
GND
OSC IN
VDD
DO
V REG
P3-0 to P3-3
POWER ON 2
INT1, INT2
MUTE
ST/MONO
LW/MW2
POWER ON 1
P2-3
RESET
XOUT
XIN
GND
VDB
C1
C2
VEE
C3
C4
VLCD
Description
LCD common output
LCD segment output
Test mode control signal input (“H” : test mode)
Not used
Key source
Key return
Power supply terminal
Beep signal output
Band selection signal output (“H” : AM)
Not used
Band selection signal output (“L” : FM)
Band selection signal output (“L” : AM)
Not used (connected to the ground)
HOLD switch signal input(“L” : hold on)
1.0V battery voltage detection signal input (“L” : lower than 1.0V)
Not used
Ground terminal
Programmable counter input terminal
Power supply terminal
Phase comparator output
Phase comparator constant voltage supply
Not used
Power supply control signal output (“L” : radio on)
Destination setting terminal
Muting control signal output (“L” : muting on)
Stereo/mono selection signal output
Not used
Power supply control signal output (“H” : radio on)
Not used
Reset signal input (“L” : microcomputer reset)
External crystal resonator terminal (75kHz)
External crystal resonator terminal (75kHz)
Ground terminal
Power voltage step-up terminal
Voltage doubler boosting capacitor terminal
Voltage doubler boosting capacitor terminal
1.5V constant voltage power supply output for LCD drive
Voltage doubler boosting capacitor terminal
Voltage doubler boosting capacitor terminal
3.0V constant voltage power supply output for LCD drive
SECTION 5
EXPLODED VIEWS
NOTE:
•
-XX, -X mean standardized parts, so they may
have some differences from the original one.
have some differences 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.
are seldom required for routine service. Some
delay should be anticipated when ordering these
items.
•
The mechanical parts with no reference number
in the exploded views are not supplied.
in the exploded views are not supplied.
11
SRF-M37
Ref. No.
Part No.
Description
Remarks
Ref. No.
Part No.
Description
Remarks
1
3-247-142-11 CABINET (FRONT)
2
3-247-144-01 PANEL (FRONT)
3
X-3383-581-1 CABINET(FRONT) ASSY
4
1-786-468-21 SWITCH, RUBBER KEY (PRESET)
5
3-247-150-01 TERMINAL (-), BATTERY
* 6
A-3347-451-A KEY BOARD, COMPLETE
7
3-247-153-01 SHEET (HOLD)
1
13
7
8
11
7
10
5
3
2
4
6
12
9
not
supplied
8
3-318-203-11 SCREW (B1.7X6), TAPPING
* 9
A-3347-447-A MAIN BOARD, COMPLETE
10
3-247-143-11 CABINET (REAR)
11
3-247-145-01 LID, BATTERY CASE
12
3-250-687-01 SHIELD (B)
13
3-247-149-01 TERMINAL (+), BATTERY
Ref. No.
Part No.
Description
Remarks
Ref. No.
Part No.
Description
Remarks
12
SRF-M37
SECTION 6
ELECTRICAL PARTS LIST
NOTE:
•
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.
parts list may be different from the parts
specified in the diagrams or the components
used on the set.
•
-XX, -X mean standardized parts, so they
may have some difference from the original
one.
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.
are seldom required for routine service.
Some delay should be anticipated when
ordering these items.
•
CAPACITORS:
uF: µF
uF: µF
•
RESISTORS
All resistors are in ohms.
METAL: metal-film resistor
METAL OXIDE: Metal Oxide-film resistor
F: nonflammable
All resistors are in ohms.
METAL: metal-film resistor
METAL OXIDE: Metal Oxide-film resistor
F: nonflammable
•
COILS
uH: µH
uH: µH
•
SEMICONDUCTORS
In each case, u: µ, for example:
uA...: µA... , uPA... , µPA... ,
uPB... , µPB... , uPC... , µPC... ,
uPD..., µPD...
In each case, u: µ, for example:
uA...: µA... , uPA... , µPA... ,
uPB... , µPB... , uPC... , µPC... ,
uPD..., µPD...
When indicating parts by reference number,
please include the board name.
please include the board name.
*
A-3347-451-A KEY BOARD, COMPLETE
********************
1-694-972-11 CONDUCTIVE BOARD, CONNECTION
3-247-146-01 HOLDER (LCD)
3-247-146-01 HOLDER (LCD)
< CAPACITOR >
C101
1-115-156-11 CERAMIC CHIP
1uF
10V
C102
1-125-701-11 DOUBLE LAYER
0.047F
5.5V
C103
1-162-970-11 CERAMIC CHIP
0.01uF
10%
25V
C104
1-162-923-11 CERAMIC CHIP
47PF
5%
50V
C105
1-162-915-11 CERAMIC CHIP
10PF
0.5PF
50V
C106
1-164-156-11 CERAMIC CHIP
0.1uF
25V
C107
1-164-156-11 CERAMIC CHIP
0.1uF
25V
C108
1-164-156-11 CERAMIC CHIP
0.1uF
25V
C109
1-126-157-11 ELECT
10uF
20%
16V
C110
1-164-156-11 CERAMIC CHIP
0.1uF
25V
C111
1-164-156-11 CERAMIC CHIP
0.1uF
25V
C112
1-113-619-11 CERAMIC CHIP
0.47uF
10V
C113
1-115-156-11 CERAMIC CHIP
1uF
10V
C114
1-162-970-11 CERAMIC CHIP
0.01uF
10%
25V
C115
1-164-156-11 CERAMIC CHIP
0.1uF
25V
C116
1-115-156-11 CERAMIC CHIP
1uF
10V
C117
1-115-156-11 CERAMIC CHIP
1uF
10V
C118
1-115-156-11 CERAMIC CHIP
1uF
10V
C119
1-162-970-11 CERAMIC CHIP
0.01uF
10%
25V
C120
1-115-416-11 CERAMIC CHIP
0.001uF
5.00%
25V
C121
1-127-715-91 CERAMIC CHIP
0.22uF
10%
16V
C122
1-165-128-11 CERAMIC CHIP
0.22uF
16V
C123
1-162-915-11 CERAMIC CHIP
10PF
0.5PF
50V
C124
1-164-156-11 CERAMIC CHIP
0.1uF
25V
C125
1-115-156-11 CERAMIC CHIP
1uF
10V
C126
1-124-589-11 ELECT
47uF
20%
16V
C127
1-162-908-11 CERAMIC CHIP
3PF
0.25PF 50V
C131
1-115-156-11 CERAMIC CHIP
1uF
10V
C132
1-115-156-11 CERAMIC CHIP
1uF
10V
C134
1-162-964-11 CERAMIC CHIP
0.001uF
10%
50V
C135
1-162-970-11 CERAMIC CHIP
0.01uF
10%
25V
C140
1-162-964-11 CERAMIC CHIP
0.001uF
10%
50V
C141
1-162-964-11 CERAMIC CHIP
0.001uF
10%
50V
C142
1-162-964-11 CERAMIC CHIP
0.001uF
10%
50V
< DIODE >
D101
8-719-071-34 DIODE RB521S-30-TE61
D102
8-719-988-61 DIODE 1SS355TE-17
D103
8-719-083-63 DIODE UDZSTE-1713B
D104
8-719-083-60 DIODE UDZSTE-174.7B
D105
8-719-083-60 DIODE UDZSTE-174.7B
< IC >
IC101
6-802-891-01 IC TC9329FA-123
IC102
8-759-690-96 IC XC61CN1002NR
IC103
6-701-978-01 IC XC61CN0802NR
< CONDUCTOR >
JC101
1-216-864-11 METAL CHIP
0
5%
1/16W
JC103
1-216-864-11 METAL CHIP
0
5%
1/16W
JC104
1-216-864-11 METAL CHIP
0
5%
1/16W
JC105
1-216-864-11 METAL CHIP
0
5%
1/16W
JC106
1-216-864-11 METAL CHIP
0
5%
1/16W
JC107
1-216-864-11 METAL CHIP
0
5%
1/16W
JC108
1-216-864-11 METAL CHIP
0
5%
1/16W
JC109
1-216-864-11 METAL CHIP
0
5%
1/16W
JC110
1-216-864-11 METAL CHIP
0
5%
1/16W
JC112
1-216-864-11 METAL CHIP
0
5%
1/16W
JC113
1-216-864-11 METAL CHIP
0
5%
1/16W
< COIL >
L101
1-412-995-21 INDUCTOR
22uH
L102
1-412-995-21 INDUCTOR
22uH
L103
1-469-845-11 INDUCTOR
4.7uH
< LIQUID CRYSTAL DISPLAY >
LCD101 1-805-123-11 DISPLAY PANEL, LIQUID CRYSTAL
< TRANSISTOR >
Q101
8-729-046-89 TRANSISTOR
2SB970-S(TX).S0
Q102
8-729-029-15 TRANSISTOR
DTC144TUA-T106
Q103
8-729-026-52 TRANSISTOR
2SA1576A-T106-R
Q104
8-729-905-35 TRANSISTOR
2SC4081T106R
Q105
8-729-905-35 TRANSISTOR
2SC4081T106R
Q106
8-729-905-35 TRANSISTOR
2SC4081T106R
Q107
8-729-905-35 TRANSISTOR
2SC4081T106R
< RESISTOR >
R101
1-216-821-11 METAL CHIP
1K
5%
1/16W
R102
1-216-845-11 METAL CHIP
100K
5%
1/16W
R103
1-216-833-11 METAL CHIP
10K
5%
1/16W
R105
1-216-857-11 METAL CHIP
1M
5%
1/16W
R106
1-216-821-11 METAL CHIP
1K
5%
1/16W
R108
1-216-821-11 METAL CHIP
1K
5%
1/16W
R109
1-216-821-11 METAL CHIP
1K
5%
1/16W
R110
1-216-821-11 METAL CHIP
1K
5%
1/16W
R111
1-216-845-11 METAL CHIP
100K
5%
1/16W
R112
1-216-833-11 METAL CHIP
10K
5%
1/16W
KEY
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