Sony CDX-C90 Service Manual page 70

IC721 BU2624FV-E2
REFERENCE
XIN 1
DIVIDER
CE 2
I/O
CK 4 SHIFT REGISTER LATCH
CTL
DA
5
CD 6
7
P0
9
P1
10
P3
IC851 TA2051FN(EL)
24 23 22 21 20
NOISE FILTER NOISE
SOM1
AMP AMP DET
AF AGC NOISE AGC
DET DET
IF AGC
DET
2ND IF
DET AGC
AMP
1 2 3 4 5
PHASE
DET
MAIN
PRESCALER
COUNT
IF COUNT
CTL
20BIT COUNT
19 18 17 16
NFB
NFB
GATE AMP
SOM2
SUB
GATE
PHASE
SHIFTER
BUFFER
BUFFER
PHASE
SHIFTER
SUB
GATE
NFB
NFB
REG
GATE
AMP
6 7 8 9
IC600 BA6285FP-E2
20 XOUT
19
VSS
18 PD
17 VDD
16 FMIN
AMIN
15
14 P2
13 IFIN
12 SD
11 P4
15 14 13
MAIN
GATE
(CH2)
(CH1)
MAIN
GATE
10 11 12
– 95 –
VREF
CONTROL
DRIVER DRIVER