L921ct - av8 audio volume controls source select – Arcam Preamp Processor AV8 User Manual
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J:\Change_Control\ECO_WIP\02_E143 L921 add 2 jumper links\L921_1.2.ddb - Documents\L921C2_1.2_extintmux.sch
A & R Cambridge Ltd.
Pembroke Avenue
Denny Industrial Centre
Waterbeach
Cambridge CB5 9PB
L921CT - AV8 audio volume controls source select
Circuit Diagram
L921C2
16-Jul-2002
INITIALS
Date Printed
2
9
Sheet
of
Notes:
3
2
1
IC203A
OPA2134PA SM
FROM INT MAIN R
FROM INT MAIN L
FROM MAIN GR L
FROM MAIN GR R
FROM EXT MAIN R
FROM EXT MAIN L
5
6
7
IC203B
OPA2134PA SM
0V_SIG
MFV-L
MFV-R
MAIN DCA IN L
MAIN DCA IN R
3
2
1
IC207A
OPA2134PA SM
SURV-L
SURR DCA IN L
3
2
1
IC210A
OPA2134PA SM
CTRV
CENTRE DCA IN
3
2
1
IC211A
OPA2134PA SM
EXV-L
EX DCA IN L
0V_SIG
-15V
+15V
0V_SIG
-15V
+15V
0V_SIG
-15V
+15V
0V_SIG
5
6
7
IC207B
OPA2134PA SM
-5V
+5V
0V_SIG
SURV-R
SURR DCA IN R
5
6
7
IC210B
OPA2134PA SM
SUBV
SUB DCA IN
5
6
7
IC211B
OPA2134PA SM
EXV-R
EX DCA IN R
0V_SIG
0V_SIG
SURROUND LEFT
CENTRE
EX LEFT
SURROUND RIGHT
-15V
+15V
0V_SIG
SUB
EX RIGHT
INT DECODER
EXT DECODER
ANALOGUE TO MAIN
FROM INT SURR L
FROM INT EX L
FROM INT CENTRE
FROM INT SURR R
FROM INT EX R
FROM INT SUB
FROM EXT SURR L
FROM EXT EX L
FROM EXT CENTRE
FROM EXT SURR R
FROM EXT EX R
FROM EXT SUB
8
4
IC203C
OPA2134PA SM
8
4
IC207C
OPA2134PA SM
8
4
IC210C
OPA2134PA SM
8
4
IC211C
OPA2134PA SM
C201
100P NPO 0805
C210
100P NPO 0805
C231
100P NPO 0805
C229
100P NPO 0805
C233
100P NPO 0805
C234
100P NPO 0805
C232
100P NPO 0805
C230
100P NPO 0805
0V_SIG
0V_SIG
0V_SIG
0V_SIG
R201
15K 0805
R202
15K 0805
R203
15K 0805
R205
15K 0805
R206
15K 0805
R207
15K 0805
R208
15K 0805
R210
15K 0805
R204
1M 0805
R209
1M 0805
R215
1M 0805
R223
1M 0805
R231
1M 0805
R219
1M 0805
R227
1M 0805
R235
1M 0805
R229
15K 0805
R213
15K 0805
R221
15K 0805
R214
15K 0805
R222
15K 0805
R230
15K 0805
R216
15K 0805
R224
15K 0805
R232
15K 0805
R217
15K 0805
R225
15K 0805
R233
15K 0805
R218
15K 0805
R226
15K 0805
R234
15K 0805
R220
15K 0805
R228
15K 0805
R236
15K 0805
C204
100N 0805
C206
100N 0805
C221
100N 0805
C223
100N 0805
C239
100N 0805
C241
100N 0805
C247
100N 0805
C249
100N 0805
C227
100N 0805
C228
100N 0805
C205
1N 0805
C207
1N 0805
C222
1N 0805
C224
1N 0805
C240
1N 0805
C242
1N 0805
C248
1N 0805
C250
1N 0805
EXT PROCESSOR ENABLE LINE
INT PROCESSOR ENABLE LINE
C202
33P NPO 0805
C211
33P NPO 0805
C217
33P NPO 0805
C235
33P NPO 0805
C243
33P NPO 0805
C245
33P NPO 0805
C237
33P NPO 0805
C219
33P NPO 0805
1Y0
12
1Z
14
2Z
15
1S
11
2Y1
1
3Y0
5
2Y0
2
3Z
4
INH
6
3S
9
2S
10
3Y1
3
1Y1
13
IC205A
74HCT4053 SM
1Y0
12
1Z
14
2Z
15
1S
11
2Y1
1
3Y0
5
2Y0
2
3Z
4
INH
6
3S
9
2S
10
3Y1
3
1Y1
13
IC209A
74HCT4053 SM
1Y0
12
1Z
14
2Z
15
1S
11
2Y1
1
3Y0
5
2Y0
2
3Z
4
INH
6
3S
9
2S
10
3Y1
3
1Y1
13
IC206A
74HCT4053 SM
1Y0
12
1Z
14
2Z
15
1S
11
2Y1
1
3Y0
5
2Y0
2
3Z
4
INH
6
3S
9
2S
10
3Y1
3
1Y1
13
IC208A
74HCT4053 SM
1Y0
12
1Z
14
2Z
15
1S
11
2Y1
1
3Y0
5
2Y0
2
3Z
4
INH
6
3S
9
2S
10
3Y1
3
1Y1
13
IC201A
74HCT4053 SM
1Y0
12
1Z
14
2Z
15
1S
11
2Y1
1
3Y0
5
2Y0
2
3Z
4
INH
6
3S
9
2S
10
3Y1
3
1Y1
13
IC202A
74HCT4053 SM
VDD
16
GND
8
VEE
7
IC206B
74HCT4053 SM
0V_SIG
0V_SIG
-5V
+5V
C253
100N 0805
C254
100N 0805
VDD
16
GND
8
VEE
7
IC209B
74HCT4053 SM
0V_SIG
-5V
+5V
C225
100N 0805
C226
100N 0805
VDD
16
GND
8
VEE
7
IC205B
74HCT4053 SM
0V_SIG
0V_SIG
-5V
+5V
C251
100N 0805
C252
100N 0805
VDD
16
GND
8
VEE
7
IC208B
74HCT4053 SM
0V_SIG
0V_SIG
-5V
+5V
C208
100N 0805
C209
100N 0805
VDD
16
GND
8
VEE
7
IC201B
74HCT4053 SM
0V_SIG
-5V
+5V
C213
100N 0805
C214
100N 0805
VDD
16
GND
8
VEE
7
IC202B
74HCT4053 SM
0V_SIG
1Y0
12
1Z
14
2Z
15
1S
11
2Y1
1
3Y0
5
2Y0
2
3Z
4
INH
6
3S
9
2S
10
3Y1
3
1Y1
13
IC204A
74HCT4053 SM
-5V
+5V
C215
100N 0805
C216
100N 0805
VDD
16
GND
8
VEE
7
IC204B
74HCT4053 SM
0V_SIG
0V_SIG
0V_SIG
0V_SIG
0V_SIG
0V_SIG
MFVL
MFVR
SURVL
CTRV
EXVL
EXVR
SUBV
SURVR
MJT
29/01/02
Production release
1.1
C203
100U NP
C212
100U NP
C218
100U NP
C236
100U NP
C244
100U NP
C220
100U NP
C238
100U NP
C246
100U NP
0V_SIG
0V_SIG
02_E028
WAF
16/7/02
2 JUMPER LINKS ADDED ACROS SK928 & SK929
1.2
02_E143