Arcam DiVA CD72 Service Manual page 19

1 2
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
L1 40
L1
L2 41
L2
L3 42
L3
L4 43
L4
L5 44
L5
L6 45
L6
L7 46
C L7
L8 47
L8
L9 48
L9
L10 49
L10
L11 50
L11
L12 51
L12
L13 52
L13
L14 53
L14
L15 54
L15
R15 55
R15
R14 56
R14
R13 57
R13
R12 58
R12
R11 59
R11
R10 60
R10
R9 61
R9
R8 62
R8
R7 63
R7
R6 64
R6
R5 65
R5
R4 66
R4
R3 67
R3
R2 68
R2
R1 69
R1
R0 70
R0
71
VCCD
72
GNDD
B
R[0..15]
R[0..15]
A/D
NMODE
PMODE
A
1 2
3
VDDAC
VCCA
U13
ASIC DAC
+
3
4 5
R76
0R0 SM
144
BIAS_L
143
IN1L
142
OUT1L
141
OUT2L
140
OUTC_L
139
OUT1L
138
OUT2L
137
IN1L
136
MID_L MID_L
135 Left Audio Stage
FBCKLSNS(2) FLN
L816C6_5 SCH
134
FBCKLSNS(2) 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
126
DCSET_R DCSET_R
125
DCSET_R DCSET_R
124
FBCKR FBCKR
123
FBCKR FBCKR
122
NC
121
FBCKRSNS FBCKRSNS
120
FBCKRSNS FBCKRSNS
119
FBCKRSNS(2) FR
118 Right Audio Stage
FBCKRSNS(2) FRN
117 L816C5_5 SCH
MID_R MID_R
116
IN1R
115
OUT2R
114
OUT1R
113
OUTC_R
112
OUT2R
111
OUT1R
110
IN1R
109
BIAS_R
DRAWING TITLE
Alpha 9 CD DAC ASIC
Circuit Diagram
Notes:
A & R Cambridge Ltd.
Pembroke Avenue
Denny Industrial Centre
Waterbeach
Filename
Cambridge CB5 9PB
J:\PROJECTS\A9 CD\L816PB DAC PCB\Circuits & PCB\Issue 5\L816c1 5.DDB - Documents\L816C
4 5
6 7
VCCA1L
VCCA1L(2)
GNDA1L(2)
GNDA1L
MUTERLY
R57
Audio_L
47R SM
Q29
BC859B
RLY1A
SERVQK
RLY 51SB12T
SERVQK
RLY1B
RLY 51SB12T
-13V
R73
Audio_R
47R SM
GNDA1R
GNDA1R(2)
VCCA1R(2)
VCCA1R
R112
100K SM
R116 R113
1K5 SM
100K SM
C104
10U NP
R100 R86
1K5 SM 100K SM
R99
100K SM
WAF
99_1072 14-10-99
LJW
98_1067 02-Nov-98
C3 was 2P22C 22uf 50v oscon
SJB
98_1058
21-Sept-98
SJB
98_1022 C164 added for EMC, C3 changed from 100U to 22U
13-May-98
SJB
98_1020 21-APR-98
ECO No. INITIALS DATE
Drawn by:
Date Printed
SJB
15-Oct-1999
.SCH
6 7
8
D
SK2B
PHONO4G
C
SH1
EMC Shield
EMCPHONO
C66
1N0 SM
R70
10R SM
C164
EMC
SK2A
1N0 SM
PHONO4G
CHASS
B
+13V
U20A
3
1
VPROT
2
LM393A SM +13V
+ C124
10U EL
U20B
5 U20C
LM393A SM
7
6
LM393A SM
+/- 200mV
Voltage Offset
Protection
-13V
NO CHANGE ON THIS SHEET 5
A
4
No Change on this sheet 3
2
1st Issue
1
DESCRIPTION OF CHANGE ISSUE
Sheet 4 of 9 L816CT
DRAWING NO.
8