Sony SRF-HM01V Service Manual ▷ View online
SRF-HM01V
10
10
4-2.
BLOCK DIAGRAM – MAIN Section –
27
IN-L
26
NF-L
+
28
IN-R
29
NF-R
+
A
LOUT
ROUT
−
1
−
2
VOL
AGC
DET
+
22
OUT-L
20
OUT-R
21
OUT-C
32
IN-C
33
BST OUT
35
AGC IN
SP1
(HEADPHONE)
L
SP2
(HEADPHONE)
R
19
VCC
18
BASE
17
RFOUT
RIPPLE
FILTER
RIPPLE
FILTER
Q103
DC/DC
CONVERTER
Q201, 202, T201
VT
LOW-PASS
FILTER
CIRCUIT
B+
D201
RESET SIGNAL
GENERATOR
IC303
27
VDD
39
VDD
34
POWER SW
42
POWER ON2
28
BEEP
54
RESET
B+ SWITCH
Q303
BATT2
PAS
SECONDARY
BATTERY
(SL-621-F11N)
D301
43
BST SW
42
PW SW
41
MT SW
SWITCH
31
MUTE
51
POWER ON1
D302
35
INT1
BATTERY
VOLTAGE
VOLTAGE
DETECT
IC302
MEGA BASS
ON/OFF
SWITCH
Q101
MEGA BASS
CONTROL
SWITCH
Q102
MEGA BASS
ON/OFF
SWITCH
Q104
29
MEGA BASS
POWER
S401
ON
OFF
DRY BATTERY
SIZE "AAA"
(IEC DESIGNATION R03)
1PC. 1.5V
23
−
25
KR1
−
KR3
21, 22
KS1, KS2
S301
−
306
1
−
4
COM1
−
COM2
LIQUID CRYSTAL
DISPLAY
LCD1
5
−
15
S1
−
S11
56 XIN
55 XOUT
X301
7.5kHz
SYSTEM CONTROLLER
IC301 (2/2)
AUDIO MASTER AMP
IC201
SIGNAL PATH
: FM/TV (2
−
6ch)
RV101
TUNER
TUNER CIRCUIT
B+
(Page 9)
SRF-HM01V
11
11
4-3.
NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
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 1.5 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/TV (2-6 ch)
(
no mark : FM/TV (2-6 ch)
(
) : TV (7-13 ch)/WEATHER
〈〈
〉〉
: AM
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F
: FM/TV (2-6 ch)
L
: TV (7-13 ch)/WEATHER
f
: AM
Note on Printed Wiring Boards:
•
•
X
: parts extracted from the component side.
•
Y
: parts extracted from the conductor side.
•
z
: Through hole.
•
: Pattern from the side which enables seeing.
•
: Carbon pattern.
(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.
• Waveforms
– MAIN Board –
– MAIN Board –
1
Q201 (Collector)
2
Q201 (Base), Q202 (Collector)
– MICROCOMPUTER Board –
3
IC301
th
(XIN)
1.8 Vp-p
248 ns
0.6 Vp-p
248 ns
1.2 Vp-p
13.3
µ
s
SRF-HM01V
12
12
4-4.
PRINTED WIRING BOARD – MAIN Board (Component Side) –
R117
R112
R113
R106
R105
C115
C32
R116
C106
CN1
C123
C107
C105
C41
C103
C31
R15
C33
C102
C34
R102
R7
C11
C35
C30
C29
C28
CF2
C26
C27
C16
C14
C45
R12
C17
C15
C8
L1
L5
R9
R22
C9
R6
C36
C7
C6
R1
C3
C2
R13
R29
R30
C37
C23
C5
R2
R4
R3
R31
R14
C25
EC
B
Q4
Q3
E C B
Q9
E C B
EC
B
Q2
Q1
E C B
A
K
A
D3
D
G
S
Q5
D5
D2
KA
KA
D4
AK
A
K
D1
IC1
(11)
11
1-683-611-
MAIN BOARD
(COMPONENT SIDE)
SP2
(HEADPHONE)
FM WIRE
ANTENNA
NGND
N+B
R+B
B+B
SW
COM
LCH
B
BATTERY BOARD
15
1
16
30
L3
AM FERRITE-ROD
ANTENNA
1
10
20
11
R
A
B
C
D
E
F
2
3
4
5
6
7
8
9
1
+
+
A
MICROCOMPUTER
BOARD
CN301
(Page 14)
• Semiconductor
Location
Ref. No.
Location
D1
E-8
D2
E-8
D3
E-6
D4
E-7
D5
E-8
IC1
C-7
Q1
D-8
Q2
B-8
Q3
C-6
Q4
C-5
Q5
F-7
Q9
C-8
(Page 17)
SRF-HM01V
13
13
4-5.
PRINTED WIRING BOARD – MAIN Board (Conductor Side) –
L10
R25
C101
R16
R107
C122
C109
C104
C121
CF4
R35
C43
CF3
C4
C19
C39
R34
R8
R5
C46
C21
R101
C108
R108
R104
R103
L8
C18
L7
L2
L9
C38
C10
C44
C47
R33
R26
R27
C12
C40
C111
C110
R115
R114
L4
C42
C119
R111
R110
R109
C118
C117
C114
C120
C113
C116
C206
C205
R204
R203
C202
R201
R207
R202
C203
C204
C201
T201
IC201
EC
B
Q7
Q6
E C B
Q103
E
C
B
EC
B
EC
B
Q201
Q202
D202
A
K
K
A
D201
Q104
BC
E
Q102
BC
E
Q8
BC
E
Q101
(11)
11
1-683-611-
MAIN BOARD
(CONDUCTOR SIDE)
TP
(ANT)
TP
(GND)
5
1
BPF1
CT2
TP
(VT)
CT3
C2
C1
B1
E
B2
36
25
1
12
37
48
24
13
+
+
+
+
+
TV/WB/FM SENS
S1
LOCAL
DX
+
RV101
−
1
VOL
A
B
C
D
E
F
1
2
3
4
5
6
7
8
9
CT1
−
2
• Semiconductor
Location
Ref. No.
Location
D201
C-8
D202
C-7
IC201
C-6
Q6
D-3
Q7
C-3
Q8
E-5
Q101
D-4
Q102
D-5
Q103
B-6
Q104
D-6
Q201
C-7
Q202
C-7
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