Sony ICF-C112 - IC Block Diagrams

ICF-C112
1414
1
2 3
4
5 6 7 8 9
10
15141312
11
FM
DISCRIMINATOR
AF POWER AMP AM FE FM IF
TUNING
METER
AM IF DET AGC
FM FE
23 22 21 202425 19 18 17 1629 28 27 2630
GND GND AF OUT +B RIPPLE FILTER AF IN DET OUT AFC (J)AGC AFC (W)AGC IF GND LED NC FM IF IN AM IF IN BAND SW
NC
MIX OUT
FE GND
AM ANT
FM RF
REG
FM OSC
FM ANT
AFC
AM OSC
VOL
NF
DISCRI
GND GND
28 27 26 25 24 23 22 21 20 19 18 17 16 15
1 2 3 4 5 6 7 8 9 10 11 12 13 14
AM & 10
,
S
HR AG & DE
PM & 10
,
S HR B
10
,
S HR C & HR B
10
,
S MIN A & F
10
,
S MIN B & G
10
,
S MIN C & D
MIN A & F
COLON OUTPUT
MIN C & D MIN B & G
10
,
S MIN E
& MIN E
HR B & G HR C & D
HR A & F
12/24 HR SELECT 50/60 Hz SELECT 50/60 Hz INPUT SLEEP INPUT SNOOZE INPUT CR/INPUT HOUR SET MIN SET ALARM DISP ALARM OFF SLEEP OUT ALARM OUT VDD VSS
D
OSC
CTR
GATE
1/2
1Hz
2Hz
50/60Hz
GATE
COMPARATOR SLEEP CTR
OUTPUT DECODER/DRIVER
CONTROL
PWR UP
OUTPUT
CONTROL
DISPLAY
CONTROL
RESET
CONTROL
PF.
DET
SEC
CTR
ALARM
MIN CTR
TIME
MIN CTR
TIME
HR CTR
ALARM
HR CTR
BLANK &
FLASH
1/25 or 1/30
STAND
BY DET
D DD D D
INPUT
CONTROL
F.SAMPLE
S.SAMPLE
SLEEP SEC,TIME,ALARM
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