Read Sony ICF-C630 (serv.man2) Service Manual online
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
P24
P23
KR3
KR2
KR2
KR1
KR0
KR0
FM OSC
AM ANT
AM OSC
VREG
13
10
15
8
6
MIX OUT
CF2
CF3
T1
FM
IF IN
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
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
54
55
61
62
63
64
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
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