Sony ICF-M33RDS Service Manual page 16

• IC Block Diagrams
– MAIN Board –
IC1 CXA1019M-T6
14 13 10
11
12
FM IF
TUNING METER
15
16 17 18 19
IC2 TC9418FN-EL
24 23 22
TRY
TRY
STATE
STATE
BUFFER
BUFFER
MPX
REFERENCE
1kHz
DIVIDER
REGULATOR
OSC
1 2 3 4
9 8 7 6 5
FM FE
FM
DISCRIMINATOR
AM FE
AM IF DET AGC
20
21 22 23
24 25
21 20 19 18
AMP
AMP
13 BIT
SIG
PHASE
PROGRAMMABLE
COMPARATOR
COUNTER
REF
UN-LOCK
12 BIT
REGISTER
32 BIT SHIFT REGISTER
SERIAL
INTERFACE
5 6 7 8
4 3 2 1
AF POWER AMP
26 28
27
FM PSC
4 BIT
VHF
+ 1/15,
1/2 SWALLOW
1/16
COUNTER
HF
LF
FM HF
32 BIT REGISTER
IF COUNTER
I/O PORT
9 10 11 12
– 26 –
17 16 15 14 13
20 BIT
IF
1kHz
CONTROL