Main Board - Sony CFD-F17CP Service Manual

—TUNER Board —
IC1 TA2149BN
GND1
1
FM RF
FM RF IN 2
AM
AM LOW CUT 3
MIX
FM
MIX OUT
4
MIX
VCC2 5
AM IF
AF IF IN 6
FM IF
FM IF IN 7
GND2 8
AGC
AGC
9
QUAD 10
R OUT
11
MUTE
L OUT 12
—MAIN Board —
IC302 BD3870FS-E2
24
0dB-
-87dB
-
Vcc/2
1
24
23
22
FM
21
OSC
AM
20
OSC
BUFF
BUFF
1/1OR
19
LEVEL
1/16
DET
ST
18
IF BUFF
1/8
SW
AM
DET
IF REQ 17
AF BUFF
16
AF
FM
DET 15
ST/MO
FM/AM
14
VCO
DIVIDE
13
DECODE
23 22 21 20
Treble1 Treble2 Bass2
fc=8kHz fc=8kHz fo=80Hz
Vcc/2
50k
2 3 4 5
IC2 LC72137M-TLM-E
CE 1
FM RF OUT
DI
CCB
VCC1
CL I/F
3
AM RF IN
DO 4
FM OSC
AM OSC
OSC OUT
B01 5
ST IND
B02 6
B03 7
I01 8
IF OUT
I02 9
DET OUT
MPX IN
LPF2/MO-ST
LPF1/BAND
UNIVERSAL
COUNTER
10
IFIN
19 18 17 16
Bass1
fo=80Hz
Vcc/2
50k 50k 50k 50k
6 7 8 9
CFD-F17CP
REFERENCE
DIVIDER
PHASE
12BITS
DETECTOR
PROGRAMMABLE
CHARGE
DIVIDER
PUMP
UNLOCK
DETECTOR
POWER ON
RESET
SWALLOW
COUNTER
1/2
1/16,1/17
4BITS
15 14 13
Logic
Vcc/2
Vcc/2
50k
10 11 12
20 XOUT
XIN
19
18
AOUT
17 AIN
PD
16
15 VSS
14 VDD
B04
13
FMIN
12
11 AMIN
37