ICF-C630
11
11
5-2. BLOCK DIAGRAM
28
9
27
AF POWER
AMP
FM IF
AM IF
FM
DISCRIMINATOR
5
17
18
POWER
SWITCH
Q3,4
+3V
L2
W1
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
TUNE
T1
AM IF
FM FRONT
-END
AM FRONT
-END
IC1
FM/AM
FRONT-END
IF AMP,DET
FM ANT
FM RF
BAND
AVDD
VDD
RESET
VDET1
VDET2
VDET3
AC/DC
P25
P24
P23
KR3
KR2
KR1
KR0
FM OSC
AM ANT
AM OSC
VREG
13
10
15
8
6
MIX OUT
CF2
CF3
T1
FM
IF IN
AF IN
AF OUT
POWER
BUZZER
MUTING
LIGHT1
LIGHT2
LIGHT3
XT1
XT2
X1
X2
COM0
I
COM3
S0
I
S24
NF
+B
DET OUT
AM
IF IN
DISCRI
VOL
CF1
FM DISCRI
VREG
Q1
RV1
VOL
SP1
SPEAKER
REG
FM
LEAD WIRE
ANTENNA
3
• Signal path
: FM
: AM
4
24
25
67
78
51
66
6
I
34
65
38
68
72
76
48
79
80
X101
32.768kHz
D101-103
(LCD BACK LIGHT)
X102
4.19MHz
70
71
74
75
+3V
IC106
RESET
IC102
2.3V REG
IC101
2.2V REG
49
IC103
2.1V REG
50
IC104
1.9V REG
S101-S110
KEY MATRIX
LCD101
LIQUID CRYSTAL
DISPLAY PANEL
3V REG
Q5
Q6
+3V
AC/DC
SWITCH
53
54
55
61
62
63
64
BAND
SW
Q2
16
BAND SW
IC105
SYSTEM CONTROL,LCD DRIVER
11
DRY BATTERY
SIZE "AA"
(IEC DESIGNATION)
2PCS,3V
J1
DC IN 4.5V
!
IC2
3.8V REG
