Sony SRF-HM01V Service Manual ▷ View online
SRF-HM01V
9
9
SECTION 4
DIAGRAMS
4-1.
BLOCK DIAGRAM – TUNER Section –
14
LPF1
21
MODE1
22
MODE2
52
BAND1
53
BAND2
50
MONO/ST
38
OSC IN
23
OSC OUT
40
D0
13
16
MPX IN
12
DET OUT
AF
AMP
8
FM IF IN
10
AM IF IN
AM
DET
AM IF
AMP
FM IF
AMP
FM
DET
4
FM MIX
2
FM RF IN
1
TV RF IN
FM/TV
MIX
24
TV/FM OSC
30
TV RF OUT
29
FM RF OUT
D1
TV
TRACKING
CT1
L5
TV/FM
OSC
L2
FM RF
D4
D5
D2
CT2
FM TRACKING
CT2, L2
B. P. F.
BPF1
AM BAND
SWITCHING
Q2
FM WIRE
ANTTENA
TUNER
B+
TV/WB/FM
SENS
S1
LOCAL
DX
27
AM RF IN
AM RF
BUFFER
Q5
30
AM BAND
AM BAND
SWITCHING
Q6, 7
LOW-PASS
FILTER
Q301, 302
L3
AM FERRITE-ROD
ANTTENA
AM TRACKING
CT3, L3
D3
L4
AM OSC
AM VCO VOLTAGE
L4
BUFFER
AM
MIX
5
AM MIX
25
AM OSC
OSC
OSC
CF3
450kHz
CF2
10.7MHz
FM/AM/TV
POWER
SWITCH
FM
MPX
MONO/ST
SWITCHING
Q4
AM BAND
SWITCHING
Q3
15
BUFFER
Q8
11
QUAD
CF4
10.7MHz
SIGNAL PATH
: FM/TV (2
−
6ch)
: TV (7
−
13ch) /WEATHER
: AM
LOUT
ROUT
A
FM/TV FRONT-END,
FM/AM IF AMP,
FM MPX
IC1
SYSTEM CONTROLLER
IC301 (1/2)
LOUT
ROUT
TV/FM/WB
RF AMP
Q1
(Page 10)
DX/LOCAL
SWITCHING
Q9
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)
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