Read Sony ICF-C411 Service Manual 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
Click on the first or last page to see other ICF-C411 service manuals if exist.