Sony CDX-C680 Service Manual page 46

IC10 BU2624FV
REFERENCE
XIN 1
DIVIDER
CE 2
I/O
CK 4 SHIFT REGISTER LATCH
CTL
DA 5
CD 6
7
P0
9
P1
10
P3
IC202 CXA1946BQ
36 35 34 33
LOUD
GAIN12
37
GAIN11 38
IN14 39
IN13 40
IN12 41
IN11 42
ZCDET
REGISTER
IN21 43
IN22 44
IN23 45
IN24 46
GAIN21 47
GAIN22 48
LOUD
1 2 3 4
PHASE
DET
MAIN
PRESCALER
COUNT
IF COUNT
CTL
20BIT COUNT
32 31 30 29 28 27 26
VOLUME VOLUME
TONE
8dB STEP 1dB STEP
VCTBUFF
VCTBUFF
VCTBUFF
LATCH
LATCH
CONTROL
SHIFT
VCTBUFF
VCTBUFF
VCTBUFF
VOLUME VOLUME
TONE
8dB STEP 1dB STEP
5 6 7 8 9 10 11
IC205, 207, 208 TDA8574
20 XOUT
VCCL 1
19
VSS
2
INL
18 PD
SVRL 3
17 VDD
16 FMIN
AMIN
15
4
INML
P2
14
INMR 5
13 IFIN
12 SD
11 P4
SVRR
6
INR
7
VCCR 8
25
24 FNTO1
FADER
23 REO1
22 CE
21 CLK
20 DGND
19 GND
45k
45k
18 VCC
17 VCT
16 DATA
15 TIMER
14 REO2
FADER
13 FNTO2
12
– 69 –
VCCL
BUFFER
LIFT
BUFFER AMP
REFERENCE
VCCL
SIGNAL
AMP
VCCR
SIGNAL
AMP
REFERENCE
VCCR
LIFT
BUFFER
AMP
BUFFER
IC209, 210 TA2050F (EL)
OUT1 1
VREF 2
NC 3
GND 4
NC 5
6
VCC
NC 7
OUT2 8
IC505 BA8270F
BUS ON
BUS ON
1
SWITCH
RESET
2
RST
SWITCH
BATTERY
BATT 3
SWITCH
4
CLK
5
VREF
6
DATA
GND 7
16 CL+
15 CL–
14 LGND
OUTL
13
12
OUTR
11 RGND
10 CR–
9 CR+
16 NC
15 IN(–)1
NC
14
13 IN(+)1
12
IN(+)2
11 NC
10 IN(–)2
9 NC
14 VCC
13
RST
BUS ON
12
11 CLK IN
10 BU IN
9 DATA IN
8 DATA OUT