Audio Board - Sony CDP-XA555ES Service Manual

– AUDIO Board –
IC401, 501 CXA8042AS
1
I01+
I02– 2
3
NC
4
I01–
I02+ 5
NC 6
VCC2 7
C2 8
C1 9
VCC1 10
REFERENCE
VREF
11 VOLTAGE
CIRCUIT
VCNT 12
13
GND1
RIREF 14
IC600 CXD87629
64 63 62 61 60 59 58 57 56 55 54 53 52 51
CKTL2 65
CKTL1 66
CKTL0 67
TEST2 68
TEST1 69
DFIOSEL 70
DFLRCK 71
DFDTL
72
DFDTR 73
DFBCK 74
DFDTEN 75
PLMGAIN2 76
PLMGAIN1 77
VDD 78
VSS
79
VSUBL1 80
1 2 3 4 5 6 7 8 9 10 11
40
28 IN2–
27 IN2+
26 NC
25
IN1+
SWITCHING
24 IN1–
CIRCUIT
NC
23
22 C4
21 C3
GND2
20
VEE2
19
CONSTANT
18
VEE1
CURRENT
17 C6
CIRCUIT
16 C5
CONTROL
CIRCUIT 15 CIREF
50 49 48 47 46 45 44 43
SERIAL
S/P
TEST
4 4
24
DIGITAL
FILTER
24
P/S
LINEAR
INTERPOLATOR
NOISE SHAPER
4
SEL
4
4
PWM
4 4 4 4
SEL
4 4
CLOCK
GEN.
12 13 14 15 16 17 18 19 20 21 22 23 24
42 41
4
40 DINIT
39 INAF
38 OVFLAG
37 CKVDD
36 CTLVDD
35 SYNC
34 MODE
33 SCDATA
32 SHIFT
31 LATCH
30 INIT
29 SYSM
28 NREGCLR
27 VDD
26 VSS
25 VSUBR1