Arcam DiVA CD72 Service Manual page 27

1 2
RDY
RDY
SEL[0..2]
SEL[0..2]
D
VASICDIG
AA[0..15]
AA[0..15]
L[0..15]
L[0..15]
37
GNDD
38
VCCD
L0 39
L0
40
L1
L1
41
L2
L2
L3 42
L3
43
L4
L4
44
L5
L5
L6 45
L6
46
L7
L7
C
47
L8
L8
L9 48
L9
49
L10
L10
L11 50
L11
L12 51
L12
52
L13
L13
53
L14
L14
L15 54
L15
55
R15
R15
R14 56
R14
R13 57
R13
58
R12
R12
R11 59
R11
R10 60
R10
61
R9
R9
R8 62
R8
R7 63
R7
64
R6
R6
R5 65
R5
R4 66
R4
67
R3
R3
R2 68
R2
R1 69
R1
70
R0
R0
71
VCCD
72
GNDD
B
R[0..15]
R[0..15]
C84 C138
+
10N 0805
10N 0805
A/D
NMODE
PMODE
A
1 2
3 4
VDDAC
VCCA
R76
0R0 SM
C139 C50
4N7 PP
100N 0805
BIAS_L
IN1L
OUT1L
OUT2L
OUTC_L
OUT1L
OUT2L
IN1L
MID_L
FBCKLSNS(2)
FBCKLSNS(2)
FBCKLSNS
FBCKLSNS
FBCKL
FBCKL
DCSET_L
DCSET_L
IC63
ASIC DAC
DCSET_R
DCSET_R
FBCKR
FBCKR
FBCKRSNS
FBCKRSNS
FBCKRSNS(2)
FBCKRSNS(2)
MID_R
IN1R
OUT2R
OUT1R
OUTC_R
OUT2R
OUT1R
IN1R
BIAS_R
C78 C54 C140 C85
4N7 PP
100N 0805
10N 0805
10N 0805
23425
A & R Cambridge Ltd.
Pembroke Avenue
Denny Industrial Centre
Waterbeach
Cambridge CB5 9PB
Filename
3 J:\FILES\L-ELECT\PCB complete packages\l900s\l912 New 2000 DAC\L912_2.0\L912_2.0.DDB - L912C4_2.0.SCH 4
5
144
VCCA1L
143
VCCA1L(2)
142
GNDA1L(2)
141
GNDA1L
140
139
138
137
136
MID_L
MID_L
135 Left Audio Stage
FLN AUDIO_L
134 L912C6_2.0.SCH
FL
133
FBCKLSNS
FBCKLSNS
132
FBCKLSNS
FBCKLSNS
131
NC
130 FBCKL
FBCKL
129
FBCKL
FBCKL
128
DCSET L
DCSET_L
127
DCSET L
DCSET_L SERVQK
126 DCSET R
DCSET_R SERVQK
125
DCSET_R
DCSET_R
124
FBCKR
FBCKR
123 FBCKR
FBCKR
122
NC
121
FBCKRSNS
FBCKRSNS
120 FBCKRSNS
FBCKRSNS
119
FR
118 Right Audio Stage
FRN AUDIO_R
117 MID R L912C5_2.0.SCH
MID_R
116
115
114
113
112
GNDA1R
111
GNDA1R(2)
110
VCCA1R(2)
109
VCCA1R
VCCA1R
VCCA1R(2)
GNDA1R(2)
GNDA1R
DRAWING TITLE
9 CD DAC ASIC
Circuit Diagram
Notes:
5
6 7
VCCA1L
VCCA1L(2)
GNDA1L(2) MUTERLY
MUTERLY
GNDA1L
SK2B
PHONO4G
AUDIO L
TR29
BC859B RLY1A
RLY 51SB12T
RLY1B
RLY 51SB12T
-13V
EMC
SK2A
PHONO4G
CW 9-6-01
01_1084 CW 30-4-01 Listening component changes
01_1078 CW 1-5-01 Production release
ECO No. INITIALS DATE DESCRIPTION OF CHANGE
Date Printed Drawn by:
Sheet 3 of 8
DRAWING NO.
CW
28-Jun-2001
6 7
8
D
C
SH1
EMC Shield
EMCPHONO
C66
1N0 SM
R70
10R SM
C164
1N0 SM
CHASS
B
2 0
A
1.1
1.0
ISSUE
L912CT
8