Sony Dream Machine ICF-C201, Service Manual

Page: 11 / 16

11
ICF-C201/C205
IC1 CXA1019M
• IC Block Diagram
20 21 22 23 24 25 26 27 28
1 2
4
3
5
6
7
8 9 10 11
12
13 14
15 16
17 18 19
AF POWER AMP
AM IF DET AGC
AM FE
FM
DISCRIMINATOR
FM FE
TUNING
METER
FM IF
FM/AM BAND SELECT AM IF IN FM IF IN N.C METER IF GND AFC AGC AFC AGC DET OUT AF IF RIPPLE FILTER VCC AF OUT 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
FM/AM
IF OUT
IC2 LM8560N
OSC
CTR
GATE
GATE
D
OUTPUT
CONTROL
COMPARATOR
STAND
BY DET
BLANK
&
FLASH
OUTPUT
DECODER/
DRIVER
INPUT
CONTROL
PWR
UP
1/2
SEC
CTR
RESET
CONTROL
1/25 OR 1/30
DISPLAY
CONTROL
TIME
HR CTR
CONTROL
ALARM
HR CTR
D D D D D
SLEEP
CTR
ALARM
MIN CTR
TIME
MIN CTR
SEC RSTYHLD
TIME
SEC
ALARM
SLEEP
28 27 26 25 24 23 22 21 20 18
14 1 – 13
16 15 17
PWR UP
TONE
PWR
UP
50/60Hz 50/60Hz 50/60Hz 50/60Hz 50/60Hz 50/60Hz
2Hz
50/60Hz
T.DISP &
S.SAMPLE
T.RST
AL.RST
SEC DISP
T.DISP
AL.DISP
SL.DISP
TIME &
S.SAMPLE
TIME &
F.SAMPLE
ALARM &
F.SAMPLE
ALARM &
S.SAMPLE
2Hz
F.SAMPLE
S.SAMPLE
50/60Hz
12/24 HR SELECT CR INPUT 50/60 Hz SELECT 50/60 Hz INPUT SNOOZE INPUT SLEEP INPUT HOUR SET MIN SET VSS ALARM OFF SLEEP OUT ALARM OUT VDD
19
ALARM DISP
COL ON
OUT
SEGMENT
OUTPUT
PF.
DET
1kHz