Arcam FMJ AV8 Service Manual page 101

1 2
D
IC701A IC701B
R720
1 2 3 4
SDATA
10K 0805
74HC14D 74HC14D
R701
100K 0805
0V_SIG
IC701C IC701D
R721
5 6 9 8
SCLK
10K 0805
C
74HC14D 74HC14D
R702
100K 0805
0V_SIG
+5V
D701
R703
BAS16W SM
1M 0805
C702
100N 0805
IC701G
IC701E IC701F
R704
11 10 13 12
1K0 0805
74HC14D 74HC14D 74HC14D
C701
470N PE
+5V
0V_SIG
C709
100N 0805
IC702
R722
CTRL D0 74HC138D
10K 0805
R723
1 15
CTRL D1 A Y0
2 14
10K 0805
B Y1
R724
3 13
CTRL D2 C Y2
12
B
10K 0805
Y3
R725
6 11
CTRL EN G1 Y4
4 10
10K 0805 G2A Y5
5 9
G2B Y6
7
R707
Y7
R705
100K 0805
100K 0805
R708 R706
100K 0805 100K 0805
0V_SIG
A
1 2
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3
+5V
IP MUX
Q701
BC856B
R709
CD TO TAPE
IC703
10K 0805
74HCT595D
TAPE TO TAPE
15
QA
11 1
SCK QB VCR TO TAPE
14 2
SDI QC
9 3
SDO QD AV TO TAPE
4
QE
10 5
SCLR QF SAT TO TAPE
6
QG
12 7
OPCK QH DVD TO TAPE
13
OE AUX TO TAPE
C703
TUNER TO TAPE
100N 0805
0V_SIG
+5V
IC704 CD TO VCR
74HCT595D
TAPE TO VCR
15
QA
11 1
SCK QB VCR TO VCR
14 2
SDI QC
9 3
SDO QD AV TO VCR
4
QE
10 5
SCLR QF SAT TO VCR
6
QG
12 7
OPCK QH DVD TO VCR
R710 13
OE AUX TO VCR
4K7 0805
TUNER TO VCR
C704
100N 0805
0V_SIG
R715
MAIN DCA /CS
100R 0805
R728
DCA SDATA
100R 0805
R726
DCA SCLK
100R 0805
R727
DCA XMUTE
100R 0805
MAIN DCA
3
4 5
+5V
IP MUX
Q702
BC856B
R711
CD TO ANALOGUE
IC705
10K 0805 74HCT595D
TAPE TO ANALOGUE
15
QA
11 1
SCK QB VCR TO ANALOGUE
14 2
SDI QC
9 3
SDO QD AV TO ANALOGUE
4
QE
10 5
SCLR QF SAT TO ANALOGUE
6
QG
12 7
OPCK QH DVD TO ANALOGUE
13
OE AUX TO ANALOGUE
C705
TUNER TO ANALOGUE
100N 0805
0V_SIG
+5V
CD TO ZONE 2
IC706
74HCT595D
TAPE TO ZONE 2
15
QA
11 1
SCK QB VCR TO ZONE 2
14 2
SDI QC
9 3
SDO QD AV TO ZONE 2
4
QE
10 5
SCLR QF SAT TO ZONE 2
6
QG
12 7
OPCK QH DVD TO ZONE 2
R712 13
OE AUX TO ZONE 2
4K7 0805
C706
TUNER TO ZONE 2
100N 0805
0V_SIG
R716 R717
ZONE 2 DCA /CS SURROUND DCA /CS
100R 0805 100R 0805
ZONE 2 DCA SURROUND DCA
DRAWING TITLE
L921CT - AV8 audio board control logic circuit
23425
A & R Cambridge Ltd.
Pembroke Avenue
Denny Industrial Centre
Waterbeach
Cambridge CB5 9PB
Filename
J:\Change_Control\ECO_WIP\02_E143 L921 add 2 jumper links\L921_1.2.ddb - Documents\L921C7_1.2_ctrlogic.sch
4 5
6 7
GAIN RANGE
+5V
INT/EXT
Q703 MUTES
BC856B
R713
IC707
10K 0805
74HCT595D
15
QA
11 1
SCK QB
14 2
SDI QC
9 3
SDO QD
4
QE
10 5
SCLR QF
6
QG
12 7
OPCK QH
13
OE
C707
100N 0805
0V_SIG
+5V
MAIN TO PHONES
IC708
74HCT595D
ZONE 2 TO PHONES
15
QA
11 1
SCK QB ZONE 2 OUTS ENABLE
14 2
SDI QC
9 3
SDO QD MAIN OUTS ENABLE
4
QE
10 5
SCLR QF
6
QG
12 7
OPCK QH
R714 13
OE
4K7 0805
C708
100N 0805
0V_SIG
+5V
+
C710
1U0 EL
R729
D702
1M 0805
BAS16W SM
0V_SIG
R718 R719
CENTRE/SUB DCA /CS EX DCA /CS
100R 0805 100R 0805
CENTRE/SUB DCA EX DCA
Circuit Diagram
Notes:
02_E143 WAF 16/7/02 2 JUMPER LINKS ADDED ACROS SK928 & SK929
02_E028 MJT 29/01/02 Production release
ECO No. INITIALS DATE
Drawn by:
Date Printed
AD/subcon
16-Jul-2002
6 7
8
D
INT MAIN TO ZONE 2
EXT MAIN TO ZONE 2
GAIN RANGE A
GAIN RANGE B
GAIN RANGE C
INT DECODER
EXT DECODER
ANALOGUE TO MAIN
C
CNCT5 CNCT1 SPARE 1
CNCT6 CNCT2 SPARE 2
CNCT7 CNCT3 SPARE 3
CNCT8 CNCT4 SPARE 4
SPARE LOGIC
CONNECTIONS
B
A
1.2
1.1
DESCRIPTION OF CHANGE ISSUE
Sheet 7 of 9
DRAWING NO. L921C7
8