Arcam DiVA CD72 Service Manual page 29

1 2
FBCKL
FBCKL
D
FBKLSNS
FBCKLSNS
FBCKLSNS
FBCKL
FBCKL
MID L
MID_L
MIDL
C35
100N PE
FBKLSNSN
FBCKLSNS
FBCKLSNS
C
L21
7F004
C40 C43 C70
100N SM 100P SM
IC2C
100N SM
LM6182 SM
C39 C41
C69
100N SM 100P SM
L23
100N SM
IC2-V
7F004
IC4A
B
3
REFx2
1
DCSET L
DCSET L
2
DCL
OP275 SM
R6
10K 0805 0.1%
C19
100N PE
C600
1N 0805
R1
10K 0805 0.1%
R27
10K 0805 0.1%
R16
C24
DCNL
220K SM
100N PE
DC Bias
C601
A
1N 0805
6
GND6
DCSET_L 7
DCSET_L
5
-REF/2
IC4B
OP275 SM
1 2
3 4
IC2A
2 REF/4
COLDL
R63
15
3
1K0 SM
R73
3K9 SM
LM6182 SM
NOT FITTED
-13V
IC2B
7
REF/4
HOTL
R64
10
6
1K0 SM
R78
3K9 SM
LM6182 SM
NOT FITTED
-13V
+13V
L22
7F004
C48
IC3C 100N PE
IC4C
OP275 SM
OPA2134PA SM
C47
100N PE
L24
7F004
-13V
+8V9
RFLSNS
R24
VCCA1L(2)
470R SM
VCCA1L(2)
TR15
SERVO L
BC857B
TR28 R109 10K SM
MMBFJ113
DC Servo
REFL
C116
REF
SERVOL
VCCA1L
VCCA1L
100N PE
C38
IC22B
C51
6
7 10U NP 6N8 PP
5
TL072 SM
DRAWING TITLE
SERVQK 9 CD DAC Left Audio Stage
A & R Cambridge Ltd.
Pembroke Avenue
Denny Industrial Centre
Waterbeach
Cambridge CB5 9PB
3 4
5
L8 L15
R26
Cold L
1K0 SM
4M7H RADIAL 1M5H RADIAL
C57
3N3 PP
R55
2K2 SM
C62
330P PP
C73
1N0 PP
L9 L16
R30
Hot L
1K0 SM
4M7H RADIAL 1M5H RADIAL
C59
3N3 PP
+13V
C60 C44
100N PE 100N PE
IC22C IC8B
TL072 SM AD797A SM
C58 C42
100N PE 100N PE
-13V
+8V9 REF
DAC 5V Reference
IC8A
AD797A SM
TR9
3
BC847B
6
2
C14 C17
L2
TR12 100N SM
47P SM
0R0 SM
BC847B
R29
470R SM
Circuit Diagram
23425
Notes:
Filename
J:\FILES\L-ELECT\PCB complete packages\l900s\l912 New 2000 DAC\L912_2.0\L912_2.0.DDB - L912C6_2.0.SCH 5
6 7
R45
R36
1K5 SM
SERVO_L
1K0 SM
IC3A
2 IC3B
R42
1 6
R50
3 7
1K0 SM
5
47R SM
OPA2134PA SM
OPA2134PA SM
USE GUARD RAIL AROUND INVERTING I/PS
+8V9
C5
100N PE
GND5
Distortion Cancellation
IC9B
AD797A SM
R171
FBCKL
2M2 SM
C29
GLSNS
100N PE
R35
GNDA1L(2)
GNDA1L(2)
470R SM
-5V
C13
47P SM
DAC 0V Reference
L3
GNDAL
0R0 SM
0V
TR11
GNDA1L
GNDA1L
C30
C46
BC857B
10U NP 6N8 PP
TR8
BC847B
-5V
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 5 of 8
DRAWING NO.
CW
28-Jun-2001
6 7
8
D
AUDIO L
AUDIO_L
C
B
TR10
BC857B
IC9A
AD797A SM
2
6
3
2 0
A
1.1
1.0
ISSUE
L912CT
8