Read Sony SRF-DR2000 Service Manual online
– 23 –
IC402 CXA1111N
r
IC BLOCK DIAGRAMS
IC404 LA4533M
IC403 LA3335M
FF 0º
1
2
3
4
5
6
7
8
9
10
FF 1/2
FF 90º
V.C.O
VCO STOP
SYNC
DET
STEREO
SWITCH
SWITCH
PHASE
COMPALATE
LAMP
TRIGGER
DECODER
IN
FILTER
VCC
VCO
NC
GND
STLED
M/ST
L
R
24
23
22
21
20
19
18
17
16
15
14
13
1
2
3
4
5
6
7
8
9
10
11
12
FM.IF
DISCRI
TUNING
METER
RIPPLE
FILTER
AM.IF
DET.AGC
BAND SIGNAL
OUTPUT CIRCUIT
REGULATOR
FM.FE
AM.FE
BAND
AM IF
FM IF
TUNE
EARTH
IF
AFCW
AFCJ
DET
FILTER
VCC
MUTE
MIX OUT
EARTH
FM IN
NC
AM RF
FM RF
REG
FM OSC
AFC
AM OSC
DISCRI
EARTH
IC401 TA8158F (ER)
POWER
SWITCH
MUTE
CIRCIUT
BIAS
1
2
3
4
5
6
7
8
9
10 MT/SW
OUT1
POWER GND
OUT2
VCC
P/SW
IN1
PRE GND
IN2
REF
AMP2
AMP1
1
2
3
4
5
6
7
8
9
10
RF AMP
OSCILLATOR
BIAS
POWER SUPPLY
CIRCUIT
NC
VCC
OSC
OSC MONI
MIX OUT
RF IN
BIAS
RF OUT
MIX IN
GND
BUFFER
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