11
ICF-218
IC1 CXA1019S
• IC Block Diagram
GND
GND
FM DISCRI
NF
VOL
AM OSC
AFC
FM OSC
REG OUT
FM RF
AM RF IN
N. C
FM RF IN
FE GND
MIX OUT
21
22
23
24
25
26
27
28
29
30
2
3
5
4
6
7
8
9
10
1
11
12
13
14
15
16
17
18
19
20
AF POWER AMP
AM IF DET AGC
AM FE
FM
DISCRIMINATOR
FM FE
TUNING
METER
FM IF
GND
GND
AF OUT
Vcc
RIPPLE
FILTER
AF IN
DET OUT
AFC AGC
AFC AGC
IF GND
METER
N. C
FM IF IN
AM IF IN
FM/AM
BAND
SELECT
• Waveforms
1
IC101
qs
(XT1)
0.2V/DIV, 10
µ
s
ec/DIV
– MAIN Board –
31.3
µ
S
756 mV
Summary of Contents for Dream Machine ICF-C218
Page 15: ...15 ICF C218 MEMO ...
