Read Sony ICF-CD73W Service Manual online
ICF-CD73W
29
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
ST
AR
T
OFF
CLK
MUTE34
MUTE1
RESET
IN1
IN2
IN3
IN4
VREF
FIL1
FIL2
FIL3
FIL4
PGND1
OUT4
−
OUT4
+
OUT3
−
OUT3
+
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
EO
EI
VSYS
SW
VG
LG
PGND3
GND
REGO
REGB
DC IN
CT
SOFT
SPR
T
PGND2
OUT1
+
OUT1
−
OUT2
+
OUT2
−
PVCC
VSYS
DC/DC
CONVERTER
SYSTEM
OFF
SYSTEM
ON
OSC
MUTE34
MUTE1
RESET
PRE-DRIVER
PRE-DRIVER
PRE-DRIVER
PRE-DRIVER
VG
CONVERTER
REGULATOR
VSYS
DETECT
RF GND
3
2
1
IF REQ
AM
MIX
FM RFIN
AM LOW CUT
5
4
MIX OUT
VCC
AM IF IN
8
7
6
FM IF IN
GND
10
9
AGC
QUAD
12
11
R-OUT
L-OUT
FM RFOUT
22
23
24
20
21
17
18
19
15
16
13
14
AM RFIN
RF VCC
FM OSC
ST LED
OSC OUT
AM OSC
IF REQ
LPF1
MPX IN
DET OUT
LPF2
FM
MIX
FM
OSC
LEVEL
DET
AM
DET
MUTE
FM
DET
ST/MO
FM/AM
AM
OSC
AGC
SW
ST
1/8
BUFF
BUFF
DIVIDE
DECODE
VCO
IF BUFF
AF BUFF
AF
FM RF
AM IF
FM IF
1/1 OR
1/16
IC702 BH6575FV-E2
– TUNER Board –
IC1 TA2149BN
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