L921ct - av8 audio board interconnections – 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\L921C9_1.2.PRJ
A & R Cambridge Ltd.
Pembroke Avenue
Denny Industrial Centre
Waterbeach
Cambridge CB5 9PB
L921CT - AV8 audio board interconnections
Circuit Diagram
L921C9
AD/subcon
16-Jul-2002
INITIALS
Date Printed
9
9
Sheet
of
Notes:
0V_SIG
+5V
ANALOGUE L MIX
ANALOGUE R MIX
GAIN RANGE A
GAIN RANGE B
GAIN RANGE C
FROM MAIN GR L
FROM MAIN GR R
A-D GROUND REF
MAIN ANALOG IP GAIN SET
L921C3_1.2_gainrange.sch
ZONE 2 MIX L
ZONE 2 MIX R
TAPE L MIX
TAPE R MIX
VCR L MIX
VCR R MIX
ZONE 2 DCA IN R
ZONE 2 DCA IN L
TAPE OUT L
TAPE OUT R
VCR OUT L
VCR OUT R
TAPE & VCR OUTPUTS
L921C4_1.2_tape&vcr.sch
MAIN DCA IN L
MAIN DCA IN R
MAIN DCA /CS
DCA SDATA
DCA SCLK
DCA XMUTE
MAIN TO PHONES
ZONE 2 TO PHONES
MAIN OUT L
MAIN OUT R
ZONE 2 DCA IN L
ZONE 2 DCA IN R
ZONE 2 DCA /CS
DCA SDATA
DCA SCLK
DCA XMUTE
ZONE2 OUT L
ZONE2 OUT R
PHONES OUT L
PHONES OUT R
MAIN OUTS ENABLE
ZONE 2 OUTS ENABLE
ZONE 2 & MAIN OUTPUTS
L921C5_1.2_outs1.sch
SURR DCA IN L
SURR DCA IN R
SURROUND DCA /CS
DCA SDATA
DCA SCLK
DCA XMUTE
SURROUND OUT L
SURROUND OUT R
EX DCA IN L
EX DCA IN R
EX DCA /CS
DCA SDATA
DCA SCLK
DCA XMUTE
EX OUT L
EX OUT R
CENTRE DCA IN
SUB DCA IN
CENTRE OUT
SUB OUT
MAIN OUTS ENABLE
CENTRE/SUB DCA /CS
DCA SDATA
DCA SCLK
DCA XMUTE
SURROUND,CENTRE,SUB,& EX OUTPUTS
L921C6_1.2_outs2.sch
0V_SIG
EMC
1
N
F
SK918
PHONO2G
TAPE OUT
TAPE OUT L
TAPE OUT R
EMC
1
N
F
SK919
PHONO2G
VCR OUT
VCR OUT L
VCR OUT R
EMC
1
N
F
SK925
PHONO2G
EX OUT
EX OUT L
EX OUT R
EMC
1
N
F
SK923
PHONO2G
CENTRE
CENTRE OUT
SUB OUT
EMC
1
N
F
SK924
PHONO2G
SUB3 OUT
EMC
1
N
F
SK921
PHONO2G
MAIN FRONT OUT
MAIN FRONT OUT L
MAIN FRONT OUT R
EMC
1
N
F
SK922
PHONO2G
SURROUND OUT
SURR OUT L
SURR OUT R
0V_SIG
0V_SIG
GND AT
5V PSU
EMC
1
N
F
SK920
PHONO2G
ZONE 2 OUT
ZONE 2 OUT L
ZONE 2 OUT R
EMC
1
N
F
SK902
PHONO2G
DVD IN
DVD IN L
DVD IN R
EMC
1
N
F
SK903
PHONO2G
SAT IN
SAT IN L
SAT IN R
EMC
1
N
F
SK904
PHONO2G
AV IN
AV IN L
AV IN R
EMC
1
N
F
SK905
PHONO2G
VCR IN
VCR IN L
VCR IN R
EMC
1
N
F
SK906
PHONO2G
TAPE IN
TAPE IN L
TAPE IN R
EMC
1
N
F
SK907
PHONO2G
CD IN
CD IN L
CD IN R
EMC
1
N
F
SK908
PHONO2G
TUNER IN
TUNER IN L
TUNER IN R
1
2
3
4
5
6
7
8
SK901
AMPCT8
+15V
0V_SIG
-15V
AUX L
AUX R
TO PHONO PCB
+15V1
-15V1
AUXL1
AUXR1
PHONES INSERTED 3V3
AUD SDATA
AUD SCLK
AUD SEL 0
AUD SEL 1
AUD SEL 2
AUD CTRL EN
AUD SPARE1
AUD SPARE2
AUD SPARE3
AUD SPARE4
EMC
1
N
F
SK909
PHONO2G
EXT
EXT MAIN IN L
EXT MAIN IN R
EMC
1
N
F
SK910
PHONO2G
SURROUND
EXT SURR L
EXT SURR R
EMC
1
N
F
SK911
PHONO2G
CENTRE
EXT CTR L
EXT CTR R
EMC
1
N
F
SK912
PHONO2G
EX IN
EXT EX IN L
EXT EX IN R
SUB IN
1
2
3
4
5
6
7
8
SK914
AMPCT8
0V_SIG
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
SK916
FFC22V SM
1
2
3
4
5
SK915
AMPCT5
0V_SIG
1
2
3
4
5
6
7
8
SK913
AMPCT8
0V_SIG
0V_SIG
1
2
3
4
5
SK917
AMPCT5
EXT
EXT
EXT
EXT
INT DECODERS
( FROM DACS )
DAC L
DAC R
DAC S
DAC C
DAC LS
DAC RS
DAC LSB
DAC RSB
ANALOGUE
TO
A-D CONVERTER
CONTROL
INPUTS
AUX TO ANALOGUE
CD TO ANALOGUE
TUNER TO ANALOGUE
DVD TO ANALOGUE
AV TO ANALOGUE
TAPE TO ANALOGUE
VCR TO ANALOGUE
SAT TO ANALOGUE
AUX TO ZONE 2
CD TO ZONE 2
TUNER TO ZONE 2
DVD TO ZONE 2
AV TO ZONE 2
TAPE TO ZONE 2
VCR TO ZONE 2
SAT TO ZONE 2
AUX TO VCR
CD TO VCR
TUNER TO VCR
DVD TO VCR
AV TO VCR
TAPE TO VCR
VCR TO VCR
SAT TO VCR
AUX TO TAPE
CD TO TAPE
TUNER TO TAPE
DVD TO TAPE
AV TO TAPE
TAPE TO TAPE
VCR TO TAPE
SAT TO TAPE
INT MAIN TO ZONE 2
EXT MAIN TO ZONE 2
INT DECODER
EXT DECODER
ANALOGUE TO MAIN
GAIN RANGE A
GAIN RANGE B
GAIN RANGE C
MAIN TO PHONES
ZONE 2 TO PHONES
ZONE 2 OUTS ENABLE
MAIN OUTS ENABLE
SPARE 1
SPARE 2
SPARE 3
SPARE 4
ZONE 2 DCA /CS
SURROUND DCA /CS
CENTRE/SUB DCA /CS
EX DCA /CS
DCA SDATA
DCA SCLK
DCA XMUTE
SDATA
SCLK
CTRL D0
CTRL D1
CTRL D2
CTRL EN
MAIN DCA /CS
CONTROL LOGIC
L921C7_1.2_ctrlogic.sch
FROM INT MAIN R
FROM INT MAIN L
FROM MAIN GR L
FROM MAIN GR R
FROM EXT MAIN R
FROM EXT MAIN L
MAIN DCA IN L
MAIN DCA IN R
SURR DCA IN L
CENTRE DCA IN
EX DCA IN L
SURR DCA IN R
SUB DCA IN
EX DCA IN R
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
A-D GROUND REF
EXT/ INT DECODER SELECT
L921C2_1.2_extintmux.sch
Note: This connector
reversed in relation to
it's counterpart on the
digital board
R902
0R0 0805
R903
0R0 0805
R904
0R0 0805
R905
0R0 0805
R911
10K 0805
R910
5K1 0805
R906
0R0 0805
R907
0R0 0805
R908
0R0 0805
Power Supply
L921C8_1.2_psu.sch
R909
0R0 0805
1
2
3
SW901A
2PCO
4
5
6
SW901B
2PCO
C912
100N 0805
R901
10K 0805
0V_SIG
AUX TO TAPE
CD TO TAPE
TUNER TO TAPE
DVD TO TAPE
AV TO TAPE
TAPE TO TAPE
VCR TO TAPE
SAT TO TAPE
TAPE L MIX
TAPE R MIX
AUX IN L
AUX IN R
DVD IN L
DVD IN R
SAT IN L
SAT IN R
AV IN L
AV IN R
TAPE IN L
TAPE IN R
VCR IN L
VCR IN R
CD IN L
CD IN R
TUNER IN R
TUNER IN L
AUX TO VCR
CD TO VCR
TUNER TO VCR
DVD TO VCR
TAPE TO VCR
VCR TO VCR
SAT TO VCR
VCR L MIX
VCR R MIX
AUX TO ZONE2
DVD TO ZONE2
DVD TO ANALOGUE
SAT TO ZONE2
SAT TO ANALOGUE
AV TO ZONE2
AV TO ANALOGUE
VCR TO ZONE2
VCR TO ANALOGUE
TAPE TO ZONE2
TAPE TO ANALOGUE
CD TO ZONE2
CD TO ANALOGUE
TUNER TO ZONE2
TUNER TO ANALOGUE
INT MAIN IN L
INT MAIN IN R
EXT MAIN IN L
EXT MAIN IN R
INT MAIN TO ZONE 2
EXT MAIN TO ZONE 2
ANALOGUE L MIX
ANALOGUE R MIX
ZONE 2 L MIX
ZONE 2 R MIX
AV TO VCR
AUX TO ANALOGUE
INPUT SWITCHING
L921C1_1.2_ipmux.sch
IN
IN
MAIN IN
SUB4 OUT
& SUB OUT
C900A
100PX4 SM
C900B
100PX4 SM
C922D
100PX4 SM
C921D
100PX4 SM
C921B
100PX4 SM
C922A
100PX4 SM
C900D
100PX4 SM
C922B
100PX4 SM
C922C
100PX4 SM
C921C
100PX4 SM
C921A
100PX4 SM
CHS1
CHS1
CHS1
Update Box
EL1
UPDATE_BOX
C900C
100PX4 SM
CHS1
FIX900
FIXING HOLE 3.5
FIX901
FIXING HOLE 3.5
FIX902
FIXING HOLE 3.5
FIX903
FIXING HOLE 3.5
FIX904
FIXING HOLE 3.5
C923
100P NPO 0805
C924
100P NPO 0805
C925
100P NPO 0805
C926
100P NPO 0805
C927
100P NPO 0805
CHS3
CHS4
CHS1
CHS2
CHS5
0V_SIG
0V_SIG
0V_SIG
0V_SIG
0V_SIG
C928D
100PX4 SM
C928C
100PX4 SM
C928B
100PX4 SM
C928A
100PX4 SM
CHS3
1
2
3
4
5
6
7
8
SK927
AMPCT8
0V_SIGAU
SNAP OFF PCB
1
2
3
SK928
MOLEX3MV
0V_SIG
1
2
3
SK929
MOLEX3MV
1
EMC
SK926
PHONO2HG
DVDINL
DVDINR
SATINL
SATINR
AVINL
AVINR
VCRINL
VCRINR
TAPEINL
TAPEINR
CDINL
CDINR
TUNINR
TUNINL
EXTMINL
EXTMINR
Right channel
Left channel
C901
1N 0805
C902
1N 0805
C903
1N 0805
C904
1N 0805
C905
1N 0805
C906
1N 0805
C907
1N 0805
C908
1N 0805
C909
1N 0805
C910
1N 0805
C911
1N 0805
C913
1N 0805
C914
1N 0805
C915
1N 0805
C916
1N 0805
C917
1N 0805
C918
1N 0805
C919
1N 0805
C920
1N 0805
C929
1N 0805
MJT
29/01/02
Production release
1.1
1
2
3
4
5
6
7
8
9
10
EMC screen
SC1
E874MC
L921PB bare audio
board
board
PCB1
L921PB
(Page 1)
(Page 7)
(Page 4)
(Page 5)
(Page 8)
(Page 6)
(Page 3)
(Page 2)
02_E028
JP900
JUMPER
JP901
JUMPER
WAF
16/7/02
2 JUMPER LINKS ADDED ACROS SK928 & SK929
1.2
02_E143