ICF-J1 - Sony Audio Service Manual (repair manual). Page 11

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ICF-J1
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SECTION  5
DIAGRAMS
5-1.
BLOCK  DIAGRAM
13
15
18
24
16
3
BPF
BPF1
L2
SW ANT
CT5
ANT1
FM/SW
TELESCOPIC
ANTENNA
FM
FRONT-END
FM ANT
11
AM
FRONT-END
AM ANT
MIX OUT
+
+
L5
MW OSC
L6
SW OSC
CT1 – 4
CV1 – 1
S1 – 3
S1 – 4
CT1 – 1
10
8
CV1 – 2
CT1 – 3
CT1 – 2
CV1 – 3
FM RF
FM OSC
FM TRACKING
CT1 – 2, L3
CT1 – 3, L4
L3
FM RF
L4
FM OSC
FM FREQUENCY
COVERAGE
CT5, L2
SW
TRACKING
CT1 – 1, L1
MW
TRACKING
L1
MW
FERRITE-ROD
ANTENNA
CV1 – 4
S1 – 5
S1 – 6
CT1 – 4, L5
MW FREQUENCY
COVERAGE
CT6, L6
SW FREQUENCY
COVERAGE
CT6
BAND
FM
MW
SW
S1
6
AM
OSC
FM/AM FRONT-END,
FM/AM IF AMP, DET, AGC
IC1
T1
AM IF
CF3
CF2
17
FM
DISCRIMINATOR
FM IF
AMP
AM IF,
DET, AGC
FM
IFIN
AM
IFIN
TUNING METER
DISCRI
CF1
20
LED
TUNE
D2
HIGH CUT
SWITCH
Q1
DET
OUT
BAND
SW
VOLUME
RV1
S1 – 2
13
11
POWER
AMP
INVERTER
AMP
POWER
AMP
8
6
3
PWR
OUT1
PWR
OUT2
INV
OUT
IN2
IN1
SP1
(SPEAKER)
15
17
RIPPLE FILTER
Q2
RIPPLE
FILTER
BASE OUT
REF IN
POWER
S2
ON
OFF
BATT B+
DRY BATTERY
SIZE “D”
(IEC DESIGNATION R20)
2PCS. 3V
v
J1
IC2
POWER AMP,
RIPPLE FILTER
05
• SIGNAL PATH
: FM
: MW/SW
S1 – 1
AM IF
 FOR
MW/SW
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