Block Diagram - Sony ICF-C630 Service Manual

5-2. BLOCK DIAGRAM

W1
FM
LEAD WIRE
ANTENNA
FM ANT
13
CV1-2 CT2
FM RF
CT2,L2 10
FM
L2
TRACKING
CV1-3 CT3
CT3,L3 FM OSC
8
FM
FREQUENCY
L3
COVERAGE
L1
CV1-1 CT1
CT1,L1 AM ANT
AM
11
AM FERRITE-ROD
TRACKING
ANTENNA
AM OSC
6
CT4,L4 L4
CV1-4 CT4
AM
FREQUENCY
COVERAGE
CV1
TUNE
DRY BATTERY
SIZE "AA"
(IEC DESIGNATION)
2PCS,3V
Q5
J1
3V REG
DC IN 4.5V
!
IC2
3.8V REG
Q6
AC/DC
SWITCH
• Signal path
: FM
: AM
CF1
FM DISCRI
3
DISCRI
FM
DISCRIMINATOR
FM
MIX OUT CF2 IF IN DET OUT
15 18 FM IF 24
AM
T1
CF3
IF IN
AM IF
17
T1
AM IF
IC1
FM/AM
FRONT-END
IF AMP,DET
+B 27
REG BAND SW
9 16
VREG
Q2
BAND
IC105
SW
SYSTEM CONTROL,LCD DRIVER
65 BAND POWER
IC101
38 AVDD
BUZZER
2.2V REG
MUTING
72 VDD
COM0
IC106
76 I
RESET
RESET
+3V
COM3
S0
I
IC102 S24
48
VDET1
2.3V REG
IC103
49
VDET2 LIGHT1
2.1V REG
LIGHT2
IC104
50 VDET3
1.9V REG
LIGHT3
68
AC/DC
XT1
53
P25
S101-S110
54 P24
KEY MATRIX
XT2
55 P23
61 KR3 X1
62 KR2
63
KR1
64 KR0
X2
11 11
VREG
RV1
VOL
Q1
5
AF IN
AF OUT
25
AF POWER
28
AMP
NF
4
Q3,4
POWER
+3V
SWITCH
67
51
66
6
LCD101
I
LIQUID CRYSTAL
DISPLAY PANEL
34
78
79 +3V
80
D101-103
(LCD BACK LIGHT)
70
X101
32.768kHz
71
74
X102
4.19MHz
75
ICF-C630
SP1
SPEAKER