Sony SRF-M10 Service Manual ▷ View online
5
5
SRF-M10
Pin No.
Pin name
I/O
Description
1 to 4
COM1 to 4
O
LCD common output
5 to 15
S1 to S11
O
LCD segment output
16 to 26
–––––––
O
Not used (OPEN)
27
VDD
—
Power supply (1.5 V)
28
BEEP
O
Beep output
29
–––––––
I
Not used (OPEN)
30
MUTE
O
Mute “L” : ON “H” : OFF
31
MB
O
Mega bass SW “H” : ON “L” : OFF
32
–––––––
O
Not used (OPEN)
33
TEST
I
Not used
34
INTR2
I
Key input interruption detect
35
INTR1
I
1.0V voltage detect “L” E Lighting
36
IF IN2
I
Not used
37
GND
—
Ground.
38
OSC IN
I
Programable counter input
39
VDD
—
Power supply (1.5 V)
40
DO
O
Phase comparison output
41
VREG
—
Connecting pin of the capacitor for VREG
42
–––––––
O
Not used (OPEN)
43
CS
O
Connecting pin of the chip select for electric volume
44
DATA
O
Connecting pin of the serial data for electric volume
45
CLK
O
Connecting pin of the serial clock for electric volume
46
KEY
I
Key input
47
–––––––
O
Not used (OPEN)
48
LCD_TEST
I
LCD check test
49 to 51
–––––––
O
Not used (OPEN)
52
POWER _ON
O
Power on SW “H” : ON “L” : OFF
53
–––––––
I
Not used (OPEN)
54
RESET
I
“L” : RESET
55
XOUT
O
System clock output (75 kHz)
56
XIN
I
System clock input (75 kHz)
57
GND
—
Ground
58
VDB
—
Power voltage booster
59
C1
—
Power supply for LCD drive (1.5 V)
60
C2
—
Power supply for LCD drive
61
VEE
—
Power supply for LCD drive
62
C3
—
Power supply for LCD drive
63
C4
—
Power supply for LCD drive
64
VLCD
—
Power supply for LCD drive (3.0 V)
SECTION 3
ADJUSTMENTS
FM Section
Setting :
Connection:
For FM frequency coverage confirmation
For FM frequency coverage confirmation
• Repeat the procedures in each adjustment several times, and
the frequency coverage and tracking adjustments should be
finally done by the trimmer capacitors.
finally done by the trimmer capacitors.
FM FREQUENCY COVERAGE CONFIRMATION
Adjust for a maximum reading on level meter.
Confirm
87.5MHz
standard value: 5.3
± 0.3V
Confirm
108.0MHz
standard value: 9.2
± 0.3V
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L103
108.0MHz
CT101
98MHz
FM RF signal
generator
generator
22.5kHz frequency deviation by
400Hz signal.
Output level : as low as possible
400Hz signal.
Output level : as low as possible
TP (RF)
0.01
µ
F
set
16
Ω
headphones jack J101 (
i
)
level meter
1
23
22
2
1
15
30
TP(VT)
16
MAIN BOARD (SIDE A)
C103
R101
C117
C118
R305
C109
R107
L101
L102
R103
R104
C105
C104
R105
R102
TP(RF)
E
E
C126
C125
C102
C101
Q101
Q102
IC101
digital
voltmeter
TP
(RF)
TP (VT)
0 dB=1
µV
Adjustments Location :
MAIN BOARD (SIDE B)
L103 : FM Tracking Adjustment
CT101: FM Tracking Adjustment
SECTION 4
DIAGRAMS
4-1. EXPLANATION OF IC TERMINALS
IC303 TC9329FA-134 (SYSTEM CONTROL)
6
6
SRF-M10
• SIGNAL PATH
: FM
4-2. BLOCK DIAGRAMS
7
7
SRF-M10
4-3. PRINTED WIRING BOARDS – MAIN SECTION –
A
SUB
BOARD
(Page 9)
1
23
22
2
1
15
30
TP(VT)
16
16
17
32
64
49
1
33
48
3
4
2
1
3
4
1
2
11
(11)
1-687-584-
11
(11)
1-687-584-
MAIN BOARD (SIDE A)
MAIN BOARD (SIDE B)
L108
R304
R303
C124
R112
R111
C304
C301
IC301
IC302
R301
R320
R310
R108
C111
C112
C127
C114
C116
C119
R109
C314
C317
C315
R313
L107
L106
R113
R114
C322
C309
R309
R319
R318
C307
L103
CF101
CF102
D101
L105
C110
C113
CF103
L104
C122
C123
C121
C120
R110
D103
CT101
C305
R308
C310
C308
C312
C313
C316
C318
R314
R315
R316
R317
X301
C103
R101
C117
C118
R305
R302
Q301
L301
R322
R306
R307
C320
C321
Q302
C107
C108
C109
R107
R321
C319
L101
L102
R103
R104
C105
C104
R105
R102
TP(RF)
E
E
E
E
C126
C125
C302
C303
R312
R311
LCD901
C106
R106
D102
C306
C102
C101
Q101
Q102
IC101
IC303
DRY BATTERY
SIZE "AAA"
(IEC DESIGNATION R03)
1PC, 1.5V
J101
i
2
3
4
5
6
7
8
A
1
B
C
D
E
F
D101
D-2
D102
B-4
D103
E-4
IC101
B-3
IC301
E-6
IC302
D-5
IC303
B-5
Q101
C-3
Q102
B-3
Q301
C-4
Q302
C-4
Ref. No.
Location
r
Semiconductor
Location
8
8
SRF-M10
4-4. SCHEMATIC DIAGRAM – MAIN SECTION –
COM1
COM2
COM3
COM4
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S11
S12
S13
S14
S15
S16
S17
S18
P4-0
P4-1
P4-2
P4-3
P3-0
P3-1
P3-2
P3-3
P5-1
P5-0
P5-2
P5-3
P2-1
P2-0
P2-2
P2-3
C1
C2
C2
C3
C4
P1-0
P1-1
P1-2
P1-3
R106
R107
R108
R109
L103
CT101
C106
D102
D103
D101
C108
C111
C112
L104
C109
C118
C101
C102
R102
R103
R104
R105
L101
0.47µH
C103
C104
C105
L102
0.1µH
CF101
CF102
C110
C113
C114
CF103
C116
C117
R110
C119
C120
C121
C122
C123
C125
C126
C320
C321
C318
R322
R314
R315
R316
R317
L301
22µH
22µH
R318
R319
R320
C322
R111
R112
R113
R114
L106
L107
4.7µH
4.7µH
L108
4.7µH
J101
C124
L105
C301
R301
R303
R304
R308
R309
R310
C305
C307
C308
C309
C310
R311
R312
R313
C312
C313
C314
C315
C316
C317
CN101
C127
C304
C302
C303
C306
R302
R306
R307
R101
R305
R321
C319
C107
Q101
Q102
Q301
Q302
TP
TP
X301
100k
100k
220k
100k
1p
HVC363BTRU
HVC363BTRU
1PS226-115
1000p
1000p
1000p
27nH
1000p
0.1
0.01
100p
47k
100
0
1k
0.01
5p
100p
0.1
47
4V
4V
1
470p
1
1k
0.47
0.047
0.022
0.022
0.022
0.1
0.1
0.47
1
100p
100k
1k
1k
1k
1k
1k
1k
1k
0.1
10k
10k
0
0
100p
1
220k
10k
470k
47k
470k
1k
1
0.1
0.01
10p
10p
10k
1k
0
0.1
10
4V
4V
0.1
0.1
0.1
0.1
23P
1
0.1
0.022
1
0.01
10k
10k
4.7k
1k
100k
0
0.01
1000p
2SC4627J-C(TX)
DX/LOCAL
SWITCH
2SC4627J-C(TX)
RF AMP
2SC5658T2LQ/R
LPF
2SC5658T2LQ/R
LPF
75kHz
VDD
MUTE
TEST
INTR2
INTR1
IF IN2
GND
OSC IN
VDD
DO
VREG
RESET
XOUT
XIN
XIN
GND
VDB
VDB
VEE
VLCD
IC303
1
5
10
15
20
23
VDD
OUT
NC
VSS
VDD
OUT
NC
VSS
AGC
VCC
GND
QUAD
DET OUT
MPX IN
LPF1
ROUT
TV RF IN
FM RF IN
RF GND
FM MIX
AM MIX
FM IF IN
AM IF IN
LOUT
LPF2A
LPF2B
IF COUNT
IF REQ
MODE1
MODE2
OSC OUT
TV/FM OSC
AM OSC
RF VCC
AM RF IN
AM BYPASS
FM RF OUT
TV RF OUT
IC101
L OUT
R OUT
POWER ON1
POWER ON1
KEY INT
L IN
L IN
DXD-LOCAL SW
R IN
R IN
AU COM
MUTE
MUTE
VDD
VCC
VCC
D/D
GND
GND
GND
GND
GND
MEGA BASS
+B
+B
+B
CLK
CLK
CS
KEY
KEY
DATA
3V
3V
(CS)
(DATA)
(CLK)
(KEY)
(TEST)
(MB)
(MUTE)
(BEEP)
(POWER ON1)
1PC,1.5V
DRY BATTERY
SIZE"AAA"
(IEC DESIGNATION R03)
TA2154AFN-EL
TC9329FA-134
S-80808CNNB-B9MT2G
IC302
IC301
S-80810CNNB-B9OT2G
FM MPX
FM/AM FRONTEND
LEVEL DET
RESET
SYSTEM CONTROL
LCD DRIVER
LCD901
FM
TRACKING
L103,CT101
(VT)
(RF)
10
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