Arcam DiVA CD72 - Page 29

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DRAWING NO.
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DRAWING TITLE
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DATE
Filename
ECO No. DESCRIPTION OF CHANGE
J:\FILES\L-ELECT\PCB complete packages\l900s\l912 New 2000 DAC\L912_2.0\L912_2.0.DDB - L912C6_2.0.SCH
A & R Cambridge Ltd.
Pembroke Avenue
Denny Industrial Centre
Waterbeach
Cambridge CB5 9PB
9 CD DAC Left Audio Stage
Circuit Diagram
L912CT
CW
28-Jun-2001
INITIALS
Date Printed
5 8Sheet of
Notes:
Cold L
Hot L
-13V
+13V
FBCKL
FBCKL
FBCKLSNS
FBCKLSNS
MID_L
AUDIO_L
3
2
6
1
85
IC8A
AD797A SM
74
IC8B
AD797A SM
TR9
BC847B
TR12
BC847B
TR15
BC857B
R25 150R SM
R29
470R SM
L2
0R0 SM
VCCA1L(2)
VCCA1L
+8V9 +8V9
C17
100N SM
REF
R18
470R SM
74
IC9B
AD797A SM
3
2
1
IC4A
OP275 SM
5
6
7
IC4B
OP275 SM
5
6
7
IC22B
TL072 SM
84
IC4C
OP275 SM
R24
470R SM
R5
10K 0805 0.1%
R6
10K 0805 0.1%
R1
10K 0805 0.1%
R2
22K1 0805 0.1%
R27
10K 0805 0.1%
DCSET L
DCSET_L
R16
220K SM
R104
2M2 SM
SERVO L
DC Bias
DC Servo
DAC 5V Reference
DCL
DCNL
SERVOL
COLDL
HOTL
REFL
MIDL
84
IC22C
TL072 SM
REFx2
-REF/2
REF/4
REF/4
GNDA1L(2)
GNDA1L
REF
+8V9
-5V
3
2
6
1
8 5
IC9A
AD797A SM
TR11
BC857B
TR10
BC857B
TR8
BC847B
R10 150R SM
R35
470R SM
L3
0R0 SM
-5V
DAC 0V Reference
GNDAL
0V
D6 BAS16W SM
AUDIO L
TR28
MMBFJ113
D8
BAS16W SM
SERVQK
R109 10K SM
FBKLSNS
FBKLSNSN
RFLSNS
GLSNS
R171
2M2 SM
FBCKL
Distortion Cancellation
C30
10U NP
C38
10U NP
3
2
15
IC2A
LM6182 SM
6
7
10
IC2B
LM6182 SM
134
1 8 9
16
IC2C
LM6182 SM
C57
3N3 PP
C59
3N3 PP
C62
330P PP
3
2
1
IC3A
OPA2134PA SM
5
6
7
IC3B
OPA2134PA SM
R30
1K0 SM
R42
1K0 SM
R36
1K0 SM
R26
1K0 SM
R50
47R SM
USE GUARD RAIL AROUND INVERTING I/PS
84
IC3C
OPA2134PA SM
L22
7F004
L24
7F004
L21
7F004
L23
7F004
+13V
-13V
C43
100N SM
C40
100N SM
C39
100N SM
C41
100N SM
C24
100N PE
C19
100N PE
C116
100N PE
C48
100N PE
C47
100N PE
C60
100N PE
C58
100N PE
C44
100N PE
C42
100N PE
C5
100N PE
C29
100N PE
C73
1N0 PP
R55
2K2 SM
VCCA1L
VCCA1L(2)
GNDA1L(2)
GNDA1L
DCSET L
DCSET_L
FBCKL
FBCKL
FBCKLSNS
FBCKLSNS
MID L
L8
4M7H RADIAL
L15
1M5H RADIAL
L9
4M7H RADIAL
L16
1M5H RADIAL
C35
100N PE
GND5
GND6
IC2-V
-13V
-13V
R73
3K9 SM
R78
3K9 SM
NOT FITTED
NOT FITTED
C600
1N 0805
C601
1N 0805
C51
6N8 PP
C46
6N8 PP
R63
1K0 SM
R64
1K0 SM
R45
1K5 SM
01_1078 CW 1-5-01 Production release 1.0
01_1084 1.1CW 30-4-01 Listening component changes
C70
100P SM
C69
100P SM
C13
47P SM
C14
47P SM
SERVO_L
CW 9-6-01 2 0