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Model
SRF-M95
Pages
15
Size
1.12 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
srf-m95.pdf
Date

Sony SRF-M95 Service Manual ▷ View online

6
6
SRF-M95
4-2. SCHEMATIC  DIAGRAM –MAIN SECTION–
• See page 10 for IC Pin Function.     • See page 10 for IC Block Diagrams.
1
 IC101 
tg
 XOUT
960 mVp-p
14 
µ
sec
TIME/div  : 10 
µ
sec/div
VOLT/div : 200 mV/div
2
 
2.1 Vp-p
0.34 
µ
sec
TIME/div  : 0.1 
µ
sec/div
VOLT/div : 500 mV/div
Note on Schematic Diagram:
• All capacitors are in 
µ
F unless otherwise noted.  pF: 
µµ
F
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in 
 and 
1
/
4
 
W or less unless otherwise
specified.
C
: panel designation.
A
: B+ Line.
H
: adjustment for repair.
• Power voltage is dc 1.5 V and fed with regulated dc power
supply from battery terminal.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM
<
> : AM
• Voltages are taken with a VOM (Input impedance 10 M
).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
• Circled numbers refer to waveforms.
Signal path.
F
: FM
f
: AM
• Abbreviation
JE
: Tourist model.
PA
: Panama model.
• Waveform
L104
EXCEPT JE
IC B/D
IC B/D
2
Ver 1.1  2002. 02
7
7
SRF-M95
4-3. PRINTED  WIRING  BOARDS –MAIN SECTION–
R415
MAIN BOARD
    
(SIDE B)
MAIN BOARD
    
(SIDE A)
1-679-614-
11
(11)
1-679-614-
11
(11)
L201
AM FERRITE-ROD ANTENNA
1
1
12
13
24
1
1
16
17
32
33
48
49
64
3
2
18
A
TO
SUB BOARD
S401
POWER
JE
MODEL
JE
MODEL
JE,PA
MODEL
PA
MODEL
EXCEPT PA MODEL
EXCEPT JE,PA MODEL
EXCEPT JE
MODEL
1
4
5
8
LCD1
(LIQUID CRYSTAL DISPLAY)
1
1
2
3
4
16
R207
R206
R428
R209
R210
R205
R204
C207
L202
R407
R409
R405
R415
R426
R418
R414
R413 R412
R411
R410 
R417
R425
R430
R421
R419
R422
R420
D401
R402
R403
R404
R406
R429
R408
L102
R109
R101
R108
D102
R107
R106
R105
D101
R104
R423
R401
R427
L103 R102
R103 R110
R112
R203
R208
R212
R201
R202
C203
X401
C425
C415
C417
C416
C414
C424
C428
C410
C411
C409
C418
C421
L401
C422
C423
Q403
C405 
TP (ANT)
TP (VT)
C219
C220
C209
TP (VCO)
Q204
C215
C213
C214
C212
TP (pin ws)
R412
C114
C107 C108
C110
C111
C112
Q103
C118
C113
C407
C103
C102
Q101
C104
C115
C105
C109
R113
C117
C106
Q102
C206
Q104
L106
C403
Q402
C401
C426
C402
Q401
Q405
C208
C223
C205
C204
Q203
C218
Q205
C224
C221
C201
C211
Q105
TP (OSC)
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
C427
1
2
A
B
C
D
E
F
G
H
3
4
5
6
7
8
9
10
11
IC401
IC403
IC402
IC201
IC101
Ref. No. Location
D101
D-7
D102
D-7
D201
G-8
D401
D-10
D402
D-10
IC101
E-8
IC201
G-3
IC401
B-3
IC402
A-8
IC403
C-4
Q101
E-8
Q102
E-8
Q103
D-8
Q104
F-8
Q105
E-8
Q201
H-7
Q202
H-7
Q203
H-9
Q204
H-2
Q205
H-8
Q401
E-9
Q402
D-9
Q403
D-3
Q405
E-10
Q406
E-9
• Semiconductor
Location
• Abbreviation
JE
: Tourist model.
PA
: Panama model.
Note on Printed Wiring Board:
• Y
: parts extracted from the conductor side.
b
: Pattern from the side which enables seeing.
Caution:
Pattern face side: Parts on the pattern face side seen from
(Side B)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
 (Side A)
the parts face are indicated.
• Indication of transistor
Q
C
These are omitted
E
B
Ver 1.1  2002. 02
8
8
SRF-M95
4-4. SCHEMATIC  DIAGRAM –SUB SECTION–
• See page 10 for IC Block Diagrams.
IC B/D
ON
OFF
4
5
1
2
3
Note on Schematic Diagram:
• All capacitors are in 
µ
F unless otherwise noted.  pF: 
µµ
F 50 WV or less
are not indicated except for electrolytics and tantalums.
• All resistors are in 
 and 
1
/
4
 
W or less unless otherwise specified.
C
: panel designation.
A
: B+ Line.
H
: adjustment for repair.
• Power voltage is dc 1.5 V and fed with regulated dc power supply from
battery terminal.
• Voltages and waveforms are dc with respect to ground under no-signal
(detuned) conditions.
no mark : FM
<
> : AM
• Voltages are taken with a VOM (Input impedance 10 M
).
Voltage variations may be noted due to normal production tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production tolerances.
• Circled numbers refer to waveforms.
Signal path.
F
: FM
f
: AM
• Abbreviation
FR
: French model.
Ver 1.1  2002. 02
9
9
SRF-M95
4-5. PRINTED  WIRING  BOARDS –SUB SECTION–
SUB BOARD
    
(SIDE B)
SUB BOARD
    
(SIDE A)
J301
1-679-615-
11
(11)
1-679-615-
11
(11)
 RV301
VOL
S303
DRY BATTERY
SIZE "AAA" 
(IEC DESIGNATION R03)
1PC 1.5V
13
12
1
1
18
48
37
36
25
24
A
TO
MAIN BOARD
BATT1
HOLD
OFF
LOCAL
DX
ON
OFF
S302
MODE
S304
FM
S305
MEGA
BASS
S301
JOG
HOLD
L304
R308
R309
R317
R316
D301
R310
R311
R314
R315
R306
R307
L307
L306
L305
R312
R313
L302
L303
L301
C314
R305
R304
R303
C306
C305
C304
C325
C324
C323
C308
C309
C302
C301
C311
C310
C312
C315
R318
C303
C320
C321
Q303
C318
E
E
1
2
A
B
C
D
E
F
G
H
3
4
5
6
7
8
9
10
11
IC 301
Ref. No. Location
D301
H-3
D302
B-8
D303
B-9
D304
B-8
D305
B-9
IC301
C-8
Q301
B-8
Q302
D-7
Q303
E-4
• Semiconductor
Location
Note on Printed Wiring Board:
• Y
: parts extracted from the conductor side.
b
: Pattern from the side which enables seeing.
Caution:
Pattern face side: Parts on the pattern face side seen from
(Side B)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
 (Side A)
the parts face are indicated.
• Indication of transistor
Q
C
These are omitted
E
B
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