ISSUE
DRAWING NO.
DRAWING TITLE
DATE
Filename:
ECO No.
DESCRIPTION OF CHANGE
L958CT2 1.4 Audio1.Sch
C30 Preamp
Contact Engineer:
L958CT2
15 Jul 2003
INITIALS
Printed:
3
3
Sheet
of
Notes:
Contact Tel:
(01223) 203200
Kevin Lamb
A & R Cambridge Ltd.
Pembroke Avenue
Cambridge CB5 9PB
Waterbeach
23425
SCRN
REAR PANEL VIEW
SKT100
KUNMING
GOLD
1
2
3
4
CON100
AMP
CT
2
3
6
7
4
1
5
8
IC101
AD797AR
SO-8
C106
10N
100V
MKS2
C107
10N
100V
MKS2
R103
100R
0W125
0805
R102
100R
0W125
0805
PAGND
PAGND
PAGND
PAGND
2
3
6
7
4
1
5
8
IC100
AD797AR
SO-8
C104
10N
100V
MKS2
C105
10N
100V
MKS2
R100
100R
0W125
0805
PAGND
PAGND
PAGND
PAGND
PAGND
PAGND
PAGND
D102
BAV99
SOT-23
D103
BAV99
SOT-23
D101
BAV99
SOT-23
D100
BAV99
SOT-23
RLY100A
NEC
EB2-12NU
R101
100R
0W125
0805
R104
47R
0W125
0805
R105
47R
0W125
0805
C2
NC2
NO2
RLY101B
NEC
EB2-12NU
RLY100B
NEC
EB2-12NU
RLY101A
NEC
EB2-12NU
C100
100UF
25V
CFNE
C101
100UF
25V
CFNE
C102
100UF
25V
CFNE
C103
100UF
25V
CFNE
AGND
AGND
AGND
AGND
-15V(A)
+15V(A)
-15V(A)
+15V(A)
-15V(A)
+15V(A)
-15V(A)
+15V(A)
-15V(A)
+15V(A)
-15V(A)
+15V(A)
1
2
3
4
5
6
CON102
AMP
CT
HEADPHONE AMP
100mW 20-30 ohms
HP OUTL
HP OUTR
R113
4R7
1W
CF
R111
47K
0W125
0805
R112
47K
0W125
0805
R110
10K
0W125
0805
R109
10K
0W125
0805
R116
100K
0W125
0805
R117
100K
0W125
0805
R108
2R2
0W125
0805
8
2
3
6
4
1
7
5
IC102
LM4880M
SO-8
C122
33P
100V
0805
C121
33P
100V
0805
C112
100N
50V
0805
C125
10UF
50V
YK
C120
1UF 50V YK
C119
1UF 50V
YK
C118
470UF
25V
YK
C124
220UF 16V
YK
C123
220UF
16V
YK
R114
4R7
1W
CF
+5V(A)
2
3
1
NCL
CL
CR
NCR
L
R
SKT101
HOSIDEN
HLJ
1
2
3
4
5
6
CON101
AMP
CT
L AUDIO
R_AUDIO
L_AUDIO
R_AUDIO
RLY102C
NEC
EB2-12NU
RLY103C
NEC
EB2-12NU
DGND
+18V(D)
D104
BAS16
SOT-323
P100
R115
150R
0W125
0805
R106
15K
0W125
0805
R107
15K
0W125
0805
PAGND
MUTE*
C113
100P
100V
0805
C114
100P
100V
0805
C115
100P
100V
0805
C116
100P
100V
0805
C117
10N
100V
0805
PAGND
LEFT
RIGHT
DIRECT
BUFFERED
PREAMP AUDIO OUTPUTS
P107
P108
P103
P104
P105
P111
P112
P113
P119
P120
P121
P122
P124
P123
P126
P125
P133
P134
P127
P128
P130
P129 P131
P106
P114
P115
P116
P117
P132
P118
P110
P101
P102
P109
VCC
6
VO+
8
GND
3
SNS-
2
VIN
4
SNS+
7
VO-
1
VEE
5
IC103
DRV135UA
SO-8
C128
100N
50V
0805
C129
100N
50V
0805
R120
47R
0W125
0805
R121
47R
0W125
0805
PAGND
PAGND
PAGND
C126
100UF
25V
CFNE
C127
100UF
25V
CFNE
AGND
AGND
RLY100C
NEC
EB2-12NU
RLY101C
NEC
EB2-12NU
VCC
6
VO+
8
GND
3
SNS-
2
VIN
4
SNS+
7
VO-
1
VEE
5
IC104
DRV135UA
SO-8
C136
100N
50V
0805
C137
100N
50V
0805
R122
47R
0W125
0805
R123
47R
0W125
0805
PAGND
PAGND
PAGND
3
2
1
G
1
2
3
CON104
Neutrik
NC3MBH-B
C134
100UF
25V
CFNE
C135
100UF
25V
CFNE
AGND
AGND
RLY103A
NEC
EB2-12NU
RLY103B
NEC
EB2-12NU
-15V(A)
+15V(A)
-15V(A)
+15V(A)
D108
BAV99
SOT-23
D107
BAV99
SOT-23
-15V(A)
+15V(A)
-15V(A)
+15V(A)
HEADPHONE JACK PCB
C139
100P
100V
0805
L_AUDIO
R_AUDIO
L100
70R@100MHz
C138
100P
100V
0805
C141
10N
100V
0805
C140
100P
100V
0805
3
2
1
G
1
2
3
CON103
Neutrik
NC3MBH-B
RLY102A
NEC
EB2-12NU
RLY102B
NEC
EB2-12NU
PAGND
D106
BAV99
SOT-23
D105
BAV99
SOT-23
-15V(A)
+15V(A)
-15V(A)
+15V(A)
C131
100P
100V
0805
C130
100P
100V
0805
C133
10N
100V
0805
C132
100P
100V
0805
L101
70R@100MHz
EMCGND1
EMCGND2
MUTE*
R118
10K
0W125
0805
R119
10K
0W125
0805
PAGND
PAGND
0V CHS
0V CHS
0V CHS
P135
P136
P137
P138
P140
P139
P141
P142
P143
P144
P145
P146
P147
P148
AGND
TR100
BD179
TO-126
R124
150R
0W125
0805
C110
470P
100V
0805
C109
470P
100V
0805
C111
470P
100V
0805
C108
470P
100V
0805
R125
10R
0W125
0805
1.0
Production release
17/04/03
MJT
03_E119
1.1
Mods following listening test. Sorbothane and some caps
06/06/03
AJD
03_E172
1.2
Renumbered Sorbothane
21/06/03
KAL
03_E186
1.3
RC5 remote bus demod fix
27/06/03
AJD
03_E191
1.4
R1 changed to VR37
15/07/03
KAL
03_E215
Summary of Contents for C30, P35
Page 1: ...Service Manual C30 Pre Ampli er Issue 1 0 ARCAM Bringing music movies to life...
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Page 32: ...CAM Products 2000 TM L928PB B GTO...
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