Arcam A32 P35/3 - Manual (Page 42)

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ECO No. DESCRIPTION OF CHANGE
J:\Change_Control\ECO_AGENDA\01_E014 Fuse changes on A32 preamp\L937_1.1.ddb - Documents\Schematic\L937C2_1.0.SCH
A & R Cambridge Ltd.
Pembroke Avenue
Denny Industrial Centre
Waterbeach
Cambridge CB5 9PB
Integrated amplifier preamp - main signal path
Circuit Diagram
L937C2 JBR 28-Nov-2001
INITIALS
Date Printed 2 3 Sheet of
Notes:
EMC
1
N
F
SK2A
PHONO4G
C100
1N0 SM
0V_SIG
0V_SIG
R100
1K0 SM
R101
1K0 SM
R103
100K SM
R104
100K SM
D100
BAV99W DUAL SM
+15V -15V
0V_SIG
0V_SIG
D101
BAV99W DUAL SM
+15V -15V
N
F
SK2B
PHONO4G
0V_SIG
R102
1K0 SM
R125
1K0 SM
R105
100K SM
R128
100K SM
D102
BAV99W DUAL SM
+15V -15V
0V_SIG
0V_SIG
D106
BAV99W DUAL SM
+15V -15V
EMC
1
N
F
SK3A
PHONO4G
C121
1N0 SM
0V_SIG
0V_SIG
R126
1K0 SM
R127
1K0 SM
R129
100K SM
R130
100K SM
D107
BAV99W DUAL SM
+15V -15V
0V_SIG
0V_SIG
D108
BAV99W DUAL SM
+15V -15V
N
F
SK3B
PHONO4G
0V_SIG
R156
1K0 SM
R157
1K0 SM
R159
100K SM
R160
100K SM
D112
BAV99W DUAL SM
+15V -15V
0V_SIG
0V_SIG
D113
BAV99W DUAL SM
+15V -15V
EMC
1
N
F
SK4A
PHONO4G
C139
1N0 SM
0V_SIG
0V_SIG
R158
1K0 SM
R189
1K0 SM
R161
100K SM
R192
100K SM
D114
BAV99W DUAL SM
+15V -15V
0V_SIG
0V_SIG
D115
BAV99W DUAL SM
+15V -15V
EMC
1
N
F
SK5A
PHONO4G
0V_SIG
R190
1K0 SM
R191
1K0 SM
R193
100K SM
R194
100K SM
D116
BAV99W DUAL SM
+15V -15V
0V_SIG
0V_SIG
D117
BAV99W DUAL SM
+15V -15V
CD INPUT
TUNER INPUT
AV INPUT
DVD INPUT
TAPE INPUT
VCR INPUT
C160
1N0 SM
0V_SIG
C164
1N0 SM
0V_SIG
0V_SIG
R195
1K0 SM
R196
1K0 SM
R197
100K SM
R198
100K SM
D118
BAV99W DUAL SM
+15V -15V
0V_SIG
0V_SIG
D119
BAV99W DUAL SM
+15V -15V
EMC
1
N
F
SK6
PHONO2G
AUX INPUT
CD L
CD R
TUNER L
TUNER R
AV L
AV R
DVD L
DVD R
TAPE IN L
TAPE IN R
VCR IN L
VCR IN R
AUX L
AUX R
AUX L
CD L
TUNER L
AV L
DVD L
VCR IN L
MODULE L
0V_SIG
AUX R
CD R
TUNER R
AV R
DVD R
VCR IN R
MODULE R
0V_SIG
TAPE 0
TAPE 1
TAPE 2
TAPE 0
TAPE 1
TAPE 2
+15V
+15V -15V
-15V
0V_SIG
0V_SIG
C104
100N SM
C105
100N SM
+15V
-15V
3
2
1
Z109A
TL072 SM
8
4
Z113C
TL072 SM
R106
1M0 SM
0V_SIG
R108
47R SM
D103
BAV99W DUAL SM +15V -15V
N
F
SK4B
PHONO4G
0V_SIG
5
6
7
Z109B
TL072 SM
R107
1M0 SM
0V_SIG
R109
47R SM
D104
BAV99W DUAL SM +15V -15V
3
2
1
Z110A
TL072 SM
R131
1M0 SM
0V_SIG
R133
47R SM
D109
BAV99W DUAL SM +15V -15V
5
6
7
Z110B
TL072 SM
R132
1M0 SM
0V_SIG
R134
47R SM
D110
BAV99W DUAL SM +15V -15V
N
F
SK5B
PHONO4G
0V_SIG
+15V
+15V -15V
-15V
-15V
-15V
C108
100P SM
C109
100P SM
C129
100P SM
C130
100P SM
AUX L
CD L
TUNER L
AV L
DVD L
TAPE IN L
MODULE L
0V_SIG
AUX R
CD R
TUNER R
AV R
DVD R
TAPE IN R
MODULE R
VCR 0
VCR 1
VCR 2
VCR 0
VCR 1
VCR 2
0V_SIG
0V_SIG
0V_SIG
TAPE OUTPUT
VCR OUTPUT
C106
100N SM
C107
100N SM
+15V
-15V
0V_SIG
C125
100N SM
C126
100N SM
+15V
-15V
0V_SIG
C127
100N SM
C128
100N SM
+15V
-15V
0V_SIG
AUX L
CD L
TUNER L
AV L
DVD L
TAPE IN L
VCR IN L
MODULE L
AUX R
CD R
TUNER R
AV R
DVD R
TAPE IN R
VCR IN R
MODULE R
LISTEN 0
LISTEN 1
LISTEN 2
LISTEN 0
LISTEN 1
LISTEN 2
0V_SIG
0V_SIG
C143
100N SM
C144
100N SM
+15V
-15V
0V_SIG
C145
100N SM
C146
100N SM
+15V
-15V
0V_SIG
8
4
Z114C
TL072 SM
R170
22K SM R162
22K SM R171
22K SM
R163
22K SM R172
22K SM R164
22K SM R173
22K SM
R165
22K SM
R174
22K SM R166
22K SM R175
22K SM R167
22K SM R176
22K SM
R168
22K SM R177
22K SM R169
22K SM
+15V
+15V
R178
22K SM
C148
22P SM
R179
22K SM
C149
22P SM
5
6
7 Z115B
OPA2134PA SM
5
6
7 Z116B
OPA2134PA SM
8
4
Z116C
OPA2134PA SM
0V_SIG
0V_SIG
R183
1M0 SM
R184
1M0 SM
R199
100K SM
R180
100K SM
0V_SIG
0V_SIG
+5V
+5V
+5V
+5V
+5V
+5V
X0
4
X1 5
X2
6
X3
7
X4
12
X5
11
X6
10
X7
9
EN
2
A0
1
A1
16
A2
15
V-
3
D
8
GND
14
V+
13
Z100
DG408DY
X0
4
X1
5
X2
6
X3
7
X4
12
X5
11
X6
10
X7
9
EN
2
A0
1
A1
16
A2 15
V-
3
D
8
GND
14
V+
13
Z101
DG408DY
X0
4
X1
5
X2
6
X3
7
X4
12
X5 11
X6
10
X7
9
EN
2
A0
1
A1
16
A2
15
V-
3
D
8
GND
14
V+
13
Z102
DG408DY
X0
4
X1
5
X2
6
X3
7
X4
12
X5
11
X6
10
X7
9
EN
2
A0
1
A1 16
A2
15
V-
3
D
8
GND
14
V+
13
Z103
DG408DY
X0
4
X1
5
X2
6
X3
7
X4 12
X5
11
X6
10
X7
9
EN
2
A0
1
A1
16
A2
15
V-
3
D
8
GND
14
V+
13
Z104
DG408DY
X0
4
X1
5
X2
6
X3
7
X4
12
X5
11
X6
10
X7
9
EN
2
A0
1
A1
16
A2
15
V-
3
D
8
GND
14
V+
13
Z105
DG408DY
LIN
4
LGND
5
RGND
12
RIN
13
LMO
2
RMO
15
AVCC
1
DVCC
7
LFO
3
RFO
14
DGND
11
XCS
6
DATA
9
CCLK
10
XMUTE
8
AGND
16
Z107
VSDVC
0V_SIG
C186
100N SM
+5V
+
C154
10U EL C155
100N SM
C156
100N SM
0V_SIG
0V_SIG
+5V
SCLK SDATA SLOAD
0V_SIG
0V_SIG
R200
2R2 SM
R201
2R2 SM
R202
2R2 SM
0V_SCLK
0V_SLOAD
0V_SDATA
C158
22P SM
C159
22P SM
0V_SIG
0V_SIG
SEL1
1
S2
14
D1
2
V+
13
S1
3
S3
11
V-
4
GND
5
VL
12
S4
6
D3
10
D4
7
SEL3
9
D2
15
SEL4
8
SEL2
16
Z106
DG413DY
+15V -15V
0V_SIG
+5V
TONE*
TONE*
TONE*
TONE*
C152
100N SM
0V_SIG
C153
100N SM
R186
47R SM
R187
47R SM
R185
22R SM + C157
100U EL
R110
2K2 SM
R111
2K2 SM + C110
100U EL
R112
22K SM
0V_SIG
R113
22K SM
+
C111
10U CERAFINE
+5V
3
2
1
Z111A
TL072 SM
5
6
7
Z112B
TL072 SM
3
2
1
Z112A
TL072 SM
5
6
7
Z111B
TL072 SM
8
4
Z109C
TL072 SM
8
4
Z110C
TL072 SM
+
C117
10U CERAFINE
R121
22K SM
R119
22K SM
R120
22K SM
+ C116
10U CERAFINE
0V_SIG
D105
BAV99W DUAL SM
0V_SIG
R114
22K SM
R118
22K SM
16
18
17
Z108D
DS1844
15
19
14
Z108A
DS1844
R115
2K7 SM
R116
2K7 SM
0V_SIG
R117
5K6 SM
R135
2K2 SM
R136
2K2 SM + C131
100U EL
R137
22K SM
0V_SIG
R138
22K SM
+ C132
10U CERAFINE
+5V
3
2
1
Z113A
TL072 SM
5
6
7
Z114B
TL072 SM
3
2
1
Z114A
TL072 SM
5
6
7
Z113B
TL072 SM
+
C138
10U CERAFINE
R146
22K SM
R144
22K SM
R145
22K SM
+ C137
10U CERAFINE
0V_SIG
D111
BAV99W DUAL SM
0V_SIG
R139
22K SM
R143
22K SM
6
2
7
Z108B
DS1844
5
3
4
Z108C
DS1844
R140
2K7 SM
R141
2K7 SM
0V_SIG
R142
5K6 SM
8
4
Z111C
TL072 SM
8
4
Z112C
TL072 SM
+15V
+15V
-15V
-15V
C169
100N SM
C168
100N SM C172
100N SM
C173
100N SM
C176
100N SM
C177
100N SM
C180
100N SM
C181
100N SM
0V_SIG 0V_SIG 0V_SIG 0V_SIG
C170
100N SM
C171
100N SM
C174
100N SM
C175
100N SM
C178
100N SM
C179
100N SM
C182
100N SM
C183
100N SM
C184
100N SM
C185
100N SM
0V_SIG 0V_SIG 0V_SIG 0V_SIG 0V_SIG
PS
1
R/W
8
DOUT
11
RST
9
DIN
12
CLK
13
VCC
20
GND
10
Z108E
IC DS1844
+5V
SDATA
SCLK
TONEID
C118
100N SM
+ C120
10U EL
0V_SIG
C119
10N SM
R122
2R2 SM
0V_TONEID
C115
22P SM
C136
22P SM
0V_SDATA
0V_SCLK
R124
2R2 SM
R123
2R2 SM
R151
22K SM R147
22K SM R152
22K SM
R148
22K SM R153
22K SM R149
22K SM
R154
22K SM R150
22K SM R155
22K SM
LISTEN 0
LISTEN 1
LISTEN 2
VCR 0
VCR 1
VCR 2
TAPE 0
TAPE 1
TAPE 2
TONE*
0V_TONEID
TONEID
0V_SDATA
SDATA
0V_SLOAD
SLOAD
0V_SCLK
SCLK
1
2
3
4
SK102
AMPCT4
0V_SIG
1
2
3
4
5
6
7
8
SK103
AMPCT8
+15V
0V_SIG
-15V
AUX R
AUX L
TO PHONO PCB
TO POWER AMP I/P
TO MICRO / DISPLAY PCB
3
2
1
Z115A
OPA2134PA SM
3
2
1 Z116A
OPA2134PA SM
3
2
1 Z117A
OPA2134PA SM
5
6
7 Z117B
OPA2134PA SM
8
4
Z115C
OPA2134PA SM
8
4
Z117C
OPA2134PA SM
RLY100A
RLY DPDT 5V SM
RLY100B
RLY DPDT 5V SM
+
-
RLY100C
RLY DPDT 5V SM D120
BAS16W SM
Q100
BC849B
R203
4K7 SM
MUTE*
0V_D
+5V
MUTE*
0V_D
+ C187
10U EL
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
SK101
FFC30V SM
0V_MODULE
AUX L
AUX R
CD L
CD R
TUNER L
TUNER R
AV L
AV R
DVD L
DVD R
TAPE IN L
TAPE IN R
VCR IN L
VCR IN R
MODULE L
MODULE R
TO PLUG IN MODULE PCB
+5V
R188
10K SM
0V_SIG
0V_HF
D121
BAV99W DUAL SM
D122
BAV99W DUAL SM
+15V -15V
C113
470N PE
C134
470N PE
C150
470N PE
C151
470N PE
+ C188
10U EL
+ C189
10U EL
+15V
-15V
0V_SIG
+ C190
10U EL
+ C191
10U EL
+15V
-15V
0V_SIG
R204
10K SM
C112
470N PE
C192
470N PE
C133
470N PE
C193
470N PE
C101
470P FKP2
C102
470P FKP2
C103
470P FKP2
C122
470P FKP2
C123
470P FKP2
C124
470P FKP2
C140
470P FKP2
C141
470P FKP2
C142
470P FKP2
C161
470P FKP2
C162
470P FKP2
C163
470P FKP2
C165
470P FKP2
C166
470P FKP2
C114
CFKP2 63V 2N2
C135
CFKP2 63V 2N2
CDL1 CDL
CDR
CDR1
TUNL1
TUNR1
TUNL
TUNR
AVL1
AVR1
AVL
AVR
DVDL1
DVDR1
DVDL
DVDR
TAPEIL1
TAPEIR1
TAPEIL
TAPEIR
VCRIL1
VCRIR1
VCRIL
VCRIR
AUXL
AUXR
+15V1
-15V1
AUXL1
AUXR1
LISTEN2
LISTEN1
LISTEN0
LIST2
LIST1
LIST0
VCR2
VCR1
VCR0
VCR21
VCR11
VCR01
TAPE2
TAPE1
TAPE0
TAP2
TAP1
TAP0
TAPEO1
TAPE02
VCRO1
VCR02
Z115_1A
Z116_1A
/TONE
Z107_4
Z107_13
Z107_1
SK102_1
SK102_3
Z116_1B
Z113_3
Z111_3
Z115_1B
Z111_1
Z111_7
Z108_19
Z112_3
Z112_1
Z112_7
TONEID
SDATA
SCLK
Z106_11 Z114_7
Z114_1
Z114_3
Z108_3
Z113_7
Z113_1
AUXIL1
AUXIR1
Z106_14
+15V2
-15V2
R182
100R SM
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
SK100
FFC22V1MM
C147
100N PE
C167
100N PE
01_1142 JBR 14/8/01 First production release 1.0
R181
10K SM
01_E014 JBR 28/11/01 Fuses uprated to 2A 1.1