Sony SRF-M80 Service Manual ▷ View online
SRF-M80
11
11
C
A
B
C
D
E
F
1
2
3
4
5
6
7
8
9
4-5.
PRINTED WIRING BOARD – KEY Board –
• Semiconductor
Location
Ref. No.
Location
D101
D-4
D102
E-6
D103
E-6
D104
D-4
D105
D-6
IC101
D-7
IC102
D-2
IC103
D-3
Q101
D-4
Q102
D-3
Q103
C-3
Q104
E-6
(Page 10)
SRF-M80
12
12
R4
C1
R1
BPF1
C8
R2
C21
C22
C23
C24
C25
C26
R17
C27
R18
R19
C29
C32
C34
C33
C42
C64
R21
C36
R23
R24
Q4
C61
C55
C54
R33
R34
R30
R32
C53
R29
R35
R36
C57
C56
C58
C49
R39
R38
R37
C45
C47
R41
R40
C48
R43
R42
R28
R27
L6
L7
L8
0.82mH
0.82mH
0.82mH
C15
R14
C19
C20
R15
R10
C9
C18
C2
C3
R5
C4
C60
R3
C5
C12
D3
R7
C68
R13
D5
R11
C16
C148
C151
C149
C101
C102
C103
C104
C105
C106
C107
C108
R139
R138
R135
R101
R102
R103
R104
R105
R106
R107
R108
R129
R130
R131
R132
Q104
C136
C131
T101
R128
C147
C130
D105
D102
R127
C133
R126
C146
C111
C141
R112
C109
Q102
R111
R109
R133
C112
C116
L101
R116
X101
D104
R113
C114
C115
C113
C135
C118
C117
C125
R117
R118
C120
C121
C122
R140
C140
C145
R121
C150
R119
R120
R141
R142
R143
R144
C138
C137
D2
L2
R26
C17
R25
L102
0.1
µ
H
S1
TP
L1
CT1
TP
TP
C65
C66
C10
L5
Q1
L3
IC1
R20
TP
C39
C40
C38
R22
C37
C41
IC2
Q5
IC3
J1
Q6
S104
S107
S106
S105
S114
S109
S112
S117
S115
S113
S110
S111
S108
S101
S102
S103
LCD101
IC101
Q103
Q101
D103
D101
IC103
IC102
C123
R124
R123
C128
C127
TP
TP
R134
C134
R110
R114
RV1
C28
C31
C30
C46
C44
C132
C129
R115
R145
RV2
C51
C52
C50
RV3
470k
47p
22
4.7
16V
16V
1k
0.1
0.1
1
22 6.3V
470p
1
470
0.47
2.2k
1.5k
10
6.3V
0.1
100
4V
0.01
1000p
1000p
10k
1
100k
100k
DTC144TU-T106
1
0.22
0.22
22k
22k
100
1k
100
4V
33k
1k
1k
4700p
4700p
22
6.3V
220
4V
2.2k
10k
10
1
1
0
0
0.1
10k
10k
10k
10k
100
4V
22k
1p
22p
220
10
1
1000p
8p
0.047
1M
4700p
470p
10k
10p
1000p
HVU300A
100k
1000p
100k
HVU300A
3.3k
2p
1000p
0.1
1000p
470p
470p
470p
470p
470p
470p
470p
470p
47k
47k
47k
10k
10k
10k
10k
10k
10k
10k
10k
10
100k
100k
47k
XN6501
0.1
22p
1k
6800p
0.1
1SS355
1SS355
100k
0.1
10k
1000p
470p
1000p
10
0.01
2SC3931
470
10
1k
1
1000p
47k
75KHz
1SS355
220k
470
4V
470
4V
0.1
1
15p
33p
1
1M
1M
0.1
0.1
0.01
1k
0.01
1000p
100k
1000p
100k
33k
10k
10k
10k
10k
1000p
1000p
KV1610S
2.2
1000p
4.7k
(FM IN)
(FM GND)
(VT)
1000p
1000p
1000p
33nH
2SC3931
CXA1960
10k
(AM GND)
0.01
0.1
0.1
10k
1
3.3
25V
LA3550M
2SC4081
LA4533M
XN4608
-031-1A7
DTA114EUA-T106
XN6501
UDZ-TE-17
-15B
RB520S-30TE61
XC61CN2102NR
XC61CN1902NR
0.1
10k
10k
0.1
0.33
(FM ST)
(B+)
2.2k
0.01
100k
10k
100k
4.7
16V
16V
0.01
0.01
100
4V
100
4V
10
6.3V
0.22
10k
10
4.7k
3.3
25V
33
6.3V
0.1
20k/20k
C
O
M
0
C
O
M
1
C
O
M
2
C
O
M
3
L
CD0
L
C
D1
LC
D
2
L
C
D3
L
C
D4
LC
D
5
L
CD6
LC
D7
L
C
D8
L
C
D9
LC
D
10
L
C
D11
LC
D12
L
C
D1
3
L
C
D1
4
COM0
COM1
COM2
COM3
LCD0
LCD1
LCD2
LCD3
LCD4
LCD5
LCD6
LCD7
L
CD
8
L
CD
9
LC
D
1
0
LC
D
11
LC
D
1
2
LC
D
13
LC
D
1
4
MPRM
V12M
MUTE
AAGC
DETO
MPX1
PLT2
PLT1
PLL1
PLL2
TVRO
REGV
FTLO
FMBF
AMLO
FACL
COMP
BAND
TUNE
FMIB
IFCT
NC
MREF
ARFI
FMIN
TVIN
GND
FMRD
OLAG
VCO
VCC
MPRG
LOUT
ROUT
DDCN
PLLI
STID
MCNT
GND
IN1
IN2
HP1
HP2
LPIN
LPGAIN
LPOUT
OUT1
OUT2
DETIN
DETOUT
REF
VCC
GND
O
U
T
1
G
N
D
O
U
T
2
V
C
C
M
U
T
E
S
W
P
O
W
E
R
S
W
IN
1
P
R
E
IN
2
R
E
F
G
N
D
POWER
NC
NC
M/BASS
MUTE
KS0
KS1
KS2
KS3
KR0
KR1
KR2
KR3
NC
AM
P
BAND1
NC
GND
EO
VCOL
VCOH
VREG0
VDD
XOUT
XIN
VREG1
VLCD0
CAPS1
CAP0
LCD7
LCD6
LCD5
LCD4
LCD3
LCD2
LCD1
LCD0
COM3
COM2
COM1
COM0
VLCD1
PB2
PB1
NC
BATT LOW
BEEP
HOLD
CE
LCD14
LCD13
LCD12
LCD11
LCD10
LCD9
LCD8
MUTE
GND
VDD
+B
BAND1
BEEP
POWER
M/BASS
VT
RF GND
VCOH
VCOL
PLL0
FM SENS
LOCAL
DX
FERRITE-ROD
ANTENNA
AM
AM
OSC
FM VCO
BUFFER
FM
RF
FM/AM RF AMP,
MIX,OCS,DET,MPX
BASS BOOST
SWITCH
BASS BOOST
AMP
RIPPLE FILTER
HEADPHONE AMP
DRY BATTERY
SIZE"AAA"
(IEC DESIGNATION R03)
2PCS. 3V
B+ SWITCH
-1
-2
12
12
1
1
START/STOP
POWER
SPRIT/RESET
MEGA BASS
BAND
MODE
ENTER
HOLD
ON
OFF
TUNE/
TIME SET
+
TUNE/
TIME SET
-
PRESET
TUNING
5
PRESET
TUNING
PRESET
TUNING
PRESET
TUNING
PRESET
TUNING
PRESET
TUNING
6
4
2
1
3
LIQUID CRYSTAL DISPLAY
SYSTEM CONTROLLER
FM VCO AMP
FM VCO
SWITCH
LOW-PASS
FILTER
-1
-2
-1
-2
Q104,T101
DC/DC CONVERTER
VOLTAGE
DETECTOR
VOLTAGE
DETECTOR
VOL
100mH
mPD17072GB
4-6.
SCHEMATIC DIAGRAM – MAIN/KEY Boards –
•
See page 9 for Waveforms.
•
See page 13 for IC Block Diagrams.
13
SRF-M80
• IC Block Diagrams
– MAIN Board –
– MAIN Board –
IC1
CXA1960Q
IC2
LA3550M-TE-L
IC3
LA4533M-TE-L
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
+
–
12
13
14
19
15
TVIN
MREF
GRND
FMIB
IFCT
NC
FMIN
FMR
O
OLAG
ARFI
REGV
TVRO
FTLO
BAND
TUNE
PLLO
FALC
COMP
37
38
39
40
AAGC
DETO
PLT2
MPXI
MPRM
V12M
MUTE
PLT1
PLL1
PLL2
MPX DECODER
AM BPF
PSN
1/X
FM/TV
LPF
PD
VCO
1/2
1/2
STID
14V
PLAP
TUNE
38kHz
STEREO AUDIO R
STEREO AUDIO L
19kHz
1.65V
1.25V
36
8 9
10
VCO
STID
MCNT
GRND
VCC
1
4
2
3
5
6
MPRG
LOUT
ROUT
DDCN
PLLI
7
+
–
+
–
35
34
FM DET
150kHz
FM LMT
OL DET
TV RF
AMP
FM RF
AMP
AM RF
AMP
45kHz
31
32
33
MUTE
AGC AMP
AM AGC
1.25V
AM/FM: 1/2
TV: 1/8
TV: 1/8
1.25V
18
17
16
FMBF
AMLO
AM OSC
FM/TV OSC
20
30
29
27
28
23
24
25
26
22 21
11
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
14
SRF-M80
SECTION 5
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.
• 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
3-237-839-01 LID, BATTERY CASE
2
3-237-857-01 CLIP (B)
3
3-318-203-01 SCREW (B 1.7X6), TAPPING
4
3-237-856-01 CLIP (A)
5
3-237-862-01 TERMINAL (+-), BATTERY
6
3-318-203-21 SCREW (B1.7X8), TAPPING
7
3-237-846-01 KNOB (SENS)
8
3-237-847-01 ADAPTOR (SENS)
9
3-237-850-01 HOLDER (ANT)
10
3-237-855-01 HOLDER (H/P)
* 11
3-378-515-11 BUSHING
* 12
A-3021-717-A MAIN BOARD, COMPLETE
13
3-237-866-01 SPRING, RING
14
3-237-840-01 KNOB (VOL)
15
3-237-861-01 TERMINAL (-), BATTERY
16
3-237-860-01 TERMINAL (+), BATTERY
17
3-238-463-01 SWITCH (POWER), RUBBER KEY
18
3-237-837-11 CABINET (REAR)
19
3-237-842-01 KNOB (HOLD)
20
1-786-320-21 SWITCH, RUBBER KEY (PRESET)
21
3-237-844-01 ADAPTOR (HOLD)
22
3-237-863-01 SHIELD (LCD)
23
1-694-892-11 CONDUCTIVE BOARD, CONNECTION
24
3-237-848-01 HOLDER (LCD)
* 25
A-3021-719-A KEY BOARD, COMPLETE
26
A-3174-290-A HOLDER ASSY, BELT
27
X-3382-351-1 CABINET (FRONT) ASSY
28
3-238-462-01 SHEET (CLIP)
L1
1-428-925-11 COIL, FERRITE-ROD ANTENNA
LCD1
1-804-642-11 DISPLAY PANEL, LIQUID CRYSTAL
26
13
17
27
19
21
22
20
24
25
23
14
1
4
6
7
9
3
3
10
11
8
18
15
16
L1
main board
key board
LCD1
5
2
3
12
Click on the first or last page to see other SRF-M80 service manuals if exist.