Sony ICF-SC1PC, Руководство по обслуживанию, Страница: 22 / 35

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IC BLOCK DIAGRAMS
IC407 CXA1522N
IC402 CXA1111N IC401 TA31136FN
LOCAL
OSCILLATION
RSSI
QUADRATURE
DETECTION
1 2 3 4 5 6 7 8
9 10 16 15 14 13 12 11
NOISE
AMP
FILTER
AMP
IF AMP
BUFFER
MIXER
DETECTOR
NOISE
COMPARATOR
MIX IN GND N-REC N-DET RSSI IF OUT QUAD AF OUT
OSC IN
OSC OUT
MIX OUT
VCC
IF IN
DEC
FIL OUT
FIL IN
L.P.F
24 23 22 21 20 19 18 17 16 15 14 13
1 2 3 4 5 6 7 8 9 10 11 12
FM.IF
DISCRI
TUNING
METER
RIPPLE
FILTER
AM.IF
DET.AGC
BAND SIGNAL
OUTPUT CIRCUIT
REGULATOR
FM.FE
AM.FE
BAND
AM IF FM IF TUNE EARTH IF AFCW
AFCJ
DET FILTER VCC MUTE
MIX OUT
EARTH
FM IN
NC
AM RF
FM RF
REG
FM OSC
AFC
AM OSC
DISCRI EARTH
IC301 MB1511-PFV-EF
BINARY 11BIT
PROGRAMABLE
COUNTER
BINARY 7BIT
SWALLOW
COUNTER
CONTROL
CIRCUIT
PRESCALER
CIRCUIT
18BIT
LATCH
15BIT
LATCH
BINARY 14BIT
REFERENCE
COUNTER
SWITCH
PHASE
COMPARATPR
MONITOR FREQUENCY
SELECT CIRCUIT
ANALOG
SWITCH
CHAGE
PUMP
OSCILLATOR
19BIT
SIFT RESISTER
16BIT
SIFT RESISTER
CONTROL
1BIT
LATCH
2 1 3 4
20 19 18
NC
∅
R
∅
P
F OSC SW FC LE DATA NC CLK
F IN
NC NC
OSC I
LD
GND
DO
VCC
VP
OSC O
17 16 15 14 13 12 11
6 5 7 8
9 10
REG VOL
PRE+POWER1
PRE+POWER2
1 2 3 4 5 6 7 8
16
15 14 13 12 11 10 9
IN1 REG NF1 VOL GND1 P-GND1 OUT1 VCC
IN2
NC NC
NF2
GND2
P-GND2
OUT2
RIPPLE