Sony CDX-646 Service Manual page 29

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– MAIN Board –
IC101 CXD2598Q
BCK 81
BCKI 82
ENPH 83
EMPHI 84
XVDD 85
XTAI 86
TIMING
LOGIC
XTAO 87
OVER SAMPLING
XVSS 88
DIGITAL FILTER
AVDD1 89
3rd-ORDER
NOISE SHAPER
LOW-PASS
AOUT1 90
FILTER
AIN1 91
–
LOUT1 92
+
VC
AVSS1 93
AVSS2 94
VC
+
LOUT2 95
–
AIN2 96
TE
L 13942296513
LOW-PASS
AOUT2 97
FILTER
AVDD2 98
RMUT 99
LMUT 100
1 2
IC301 LB1930M-TLM
VCC 1
BUFFER
NC 2
IN1
3
CONTROL
CIRCUIT
IN2 4
BUFFER
S-GND 5
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80 79 78 77 76 75 74 73 72 71 70 69
SERIAL-IN
D/A DIGITAL
INTERFACE
INTERFACE OUT
32k ERROR
RAM CORRECTOR
INTERNAL BUS
PWM
PWM
SERVO
SERVO
AUTO
INTERFACE
SEQUENCER
CPU
INTERFACE
3 4 5 6 7 8 9 10 11
10 NC
OUT1
9
MOTOR
DRIVE 8 NC
CIRCUIT
7 OUT2
6 P-GND
x ao
y
i
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68 67 66 65 64 63 62 61 60 59
CLOCK
GENERATOR
DIGITAL ASYMMETRY
PLL CORRECTOR
EFM
DEMODULATOR
SUB CODE
PROCESSOR
Q Q
3 6 7 1 3
12 13 14 15 16 17 18 19 20 21 22 23
IC302 BA8272FV-E2
14 13 12 11 10
1 2 3 4 5 6
u163
.
2 9 9 4 2 8
58 57 56 55
OP AMP
A/D
ANALOG
CONVERTER
SWITCH
SERVO DSP PWM GENERATOR
FOCUS PWM
FOCUS SERVO
GENERATOR
TRACKING TRACKING PWM
SERVO GENERATOR
SLED SERVO
GENERATOR
1 5 0 5 8 2 9 9 4
MIRR
DFCT
FOK
24 25 26 27 28
IC304 NJM2395AF08
IC305 NJM2395AF05
9 8
RESET
SWITCH
1
7
m
co
9 9
54 53 52 51
50 FE
49 VC
48 XTSL
47 TES1
46 TEST
45 VSS
44 VDD
43 FRDR
42 FFDR
41 TRDR
40 TFDR
39 SRDR
SLED PWM
38 SFDR
37 FSTIO
36 SSTP
35 MDP
2 8 9 9
DIGITAL
34 LOCK
CLV
33 PWMI
32 FOK
31 DFCT
29 30
CONTROL
2 3 4
29