Sony ICF-C411 Service Manual ▷ View online
ICF-C411
10
10
5-2. BLOCK DIAGRAM
W5
28
16
9
1
|
13
22
23
27
AF POWER
AMP
FM IF
AM IF
FM
DISCRIMINATOR
5
17
18
RIPPLE
FILTER
INPUT
CONTROL
SLEEP
CONTROL
SNOOZE
CONTROL
OUTPUT
CONTROL
DISPLAY
CONTROL
LED101
CLOCK DISPLAY
DISPLAY
ECODER/
DRIVER
OSC
1/25 or 1/30
Q2
+B
SWITCH
Q101
24
21
TIME SET INPUT
ALM DISP
SELECT
RT-TIME SET/ DIMMER
SLEEP/SNOOZE
ON/OFF INPUT
ALM-2 OUTPUT
ALM-1 OUTPUT
S110
S101-2
BRIGHTNESS
HIGH
S105
FAST-
S104
FAST+
S103
TIME SET
+
S109
SNOOZE
S108
SLEEP
S107
RADIO
ON
S106
OFF/
ALARM
RESET
D305
DRY BATTERY
"S-006P"9V
(IEC DESIGNATION 6F22)
T301
POWER
TRANSFORMER
+B
+B
L2
CV1-2
CT2
CV1-3 CT3
CV1-1 CT1
CV1-4 CT4
CT2,L2
FM
TRACKING
L3
L1
L4
CT3,L3
FM
FREQUENCY
COVERAGE
CT4,L4
AM
FREQUENCY
COVERAGE
CT1,L1
AM
TRACKING
AM
FERRITE-ROD
ANTENNA
CV1
TUNING
T1
AM IF
FM FRONT
-END
AM FRONT
-END
IC1
FM/AM
FRONT-END
IF AMP,DET
FM ANT
FM RF
FM OSC
AM ANT
AM OSC
VREG
13
10
15
8
11
6
MIX OUT
CF3
CF2
T1
FM
IF IN
IF IN
AF IN
AF OUT
NF
+B
+B
+B
DET OUT
AM
IF IN
IF IN
DISCRI
VOL
CF1
10.7MHz
VREG
Q1
RV1
w
VOLUME
IC101
ALARM CLOCK
S1
BAND
AM
FM
BAND SW
SP1
(SPEAKER)
KEEP THE CORRECT
TIME DURING POWER
STOPPAGE
REG
FM
LEAD WIRE
ANTENNA
W1
SPEED/
POWER
DOWN
Q102
D202
D103 D102
D201
W2
W2
MAIN BOARD
LED BOARD
KEY BOARD
POWER BOARD
3
• Signal path
: FM
: AM
4
24
25
LOW
ALARM TIME/
CLOCK SET
HOLD
RADIO
BUZZER
CLOCK
S101
(Function Selector)
S102
(Function Selector)
ALARM MODE
RADIO + BUZZER
RADIO
BUZZER
RADIO
ALARM
BUZZER
OFF
S101
(Function Selector)
ALARM MODE
RADIO + BUZZER
RADIO
BUZZER
OFF
D303
+B
+B
D302
PS301
D106
D107
D104
D108
27
S101-1
S102-2
S102-1
AC IN
~
CN301
SWITCH
Q103
17
SWITCH
Q301
W4
W3
CN1
20 19
3
4
3
1
2
6
1
5
7
3
6
1
5
7
1
3
4
2
+B
2-14
15-17
+B
S105
S104
S103
S109
S108
S107
S106
ICF-C411
11
11
1
A
B
C
D
E
F
G
H
I
J
2
3
4
5
6
7
8
9
10
11
12
13
14
C10
CF2
CF3
C1
C21
R3
R4
CN1
C303
C304
R301
R1
C2
R14
C3
C25
C5
C19
R8
R7
C13
C11
C12
C15
C20
Q2
IC1
C17
C18
C16
C14
C8
R5
C27
CV1-2
CV1-3
CT3
CT2
CT4
CT1
CV1-4
CV1-1
CF1
C9
C24
R6
R2
BPF1
FM
LEAD WIRE
ANTENNA
S1
Q1
Q301
T301
POWER
TRANSFORMER
RED
BLK
CN301
C301
D305
C302
R305
R304
D302
D303
JW4
JW3
T1
JW1
RV1
w
w
VOLUME
1-680-058-
11
(11)
1-680-056-
11
(11)
POWER BOARD
MAIN BOARD
15
16
10
5
1
1
4
C
B
E
C
B
E
20
30
25
S1
BAND
SP1
(SPEAKER)
KEY BOARD
W3
C7
PS301
DRY BATTERY
"S-006P" 9V
(IEC DESIGNATION 6F22)
KEEP THE CORRECT
TIME DURING POWER
STOPPAGE
2
1
1
7
KEY BOARD
W4
L2
L3
L4
L1
NUR
RED
BLK
FM
AM
CV1
TUNING
AM
FERRITE-ROD
ANTENNA
AC IN
~
1
3
5-3. PRINTED WIRING BOARDS — MAIN, POWER SECTION — • Refer to page 9 for Common Note on Printed Wiring Boards and for Circuit Boards Location.
D302
D-11
D303
D-11
D305
C-9
IC1
D-5
Q1
E-7
Q2
C-6
Q301
C-10
• Semiconductor
Location
Ref. No.
Location
(Page 12)
(Page 12)
ICF-C411
12
12
5-4. PRINTED WIRING BOARDS — KEY, LED SECTION — • Refer to page 9 for Common Note on Printed Wiring Boards and for Circuit Boards Location.
1
A
B
C
D
E
F
G
H
2
3
4
5
6
7
8
9
10
11
12
13
1
5
10
15
17
W5
W2
C109
C120
C112
C113
C110
R136
R127
C104
R112
C103
R113
C115
R139
R131
R126
R129
C119
C107
C106
R115
C105
R114
R128
C111
D105
C114
C108
R120
R125
R122
C118
R132
R110
R108
R124
R121
R117
R123
R116
C121
C116
C117
R109
R106
R107
R118
R130
R101
R104
R119
R111
JC101
D107 D106
JW116
JW118
JW117
JW119
JW120
JW101
JW104
JW105
W3
W4
JW106
JW109
JW110
JW111
JW107
JW114
D101
JW108
JW113
JW129
JW103
JW102
R135
R138
D104
S101
D108
D102
D103
S110
S102
BRIGHTNESS
ALARM TIME/CLOCK SET
(Function Selector)
(Function Selector)
HIGH
LOW
TIME SET
FAST +
HOLD
RADIO
BUZZER
CLOCK
ALARM MODE
OFF
RADIO
BUZZER
RADIO+
BUZZER
IC101
1
4
C
B
E
C
C
B
E
B
E
1
7
1
5
10
14
28
25
20
15
S108
SLEEP
S105
TIME SET
FAST-
S106
OFF/
ALARM
RESET
S107
RADIO ON
S109
SNOOZE
RADIO
ALARM
BUZZER
D201
D202
W2
1-680-057-
11
(11)
1-680-059-
11
(11)
KEY BOARD
LED BOARD
Q102
Q101
S103
S104
TIME SET
+
(SHIELD)
LED101
1
4
1
4
-1
-2
JW122
JW123
JW124
JW125
JW126
JW127
JW121
-2
-1
Q103
POWER
BOARD
CN301
2
MAIN
BOARD
CN1
1
D101
D-6
D102
E-12
D103
E-12
D104
E-10
D105
B-5
D106
C-4
D107
C-4
D108
E-10
D201
H-10
D202
H-12
IC101
C-7
LED101
I-6
Q101
D-5
Q102
E-6
Q103
D-9
• Semiconductor
Location
Ref. No.
Location
(Page 11)
(Page 11)
ICF-C411
13
13
5-5. SCHEMATIC DIAGRAM • Refer to page 9 for Common Note on Schematic Diagram and page 14 for IC Block Diagrams.
IC B/D
IC B/D
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