Arcam FMJ AV8 Service Manual page 96

1 2
SNAP OFF PCB
SK901
SK926 SK927
PHONO2HG 1 1
1 2 2
Right channel
3 3
4 4
5 5
6 6
EMC
7 7
8 8
AMPCT8
Left channel AMPCT8
C929
1N 0805 0V_SIG
D
0V_SIGAU
DVD IN L
1
SK902
F
DVD IN
EMC
N
DVD IN R
PHONO2G
C901
1N 0805
1
SK903
SAT IN L
F
SAT IN
EMC
N
SAT IN R
PHONO2G
C902
1N 0805
1
SK904
AV IN L
F
AV IN
EMC
N
AV IN R
PHONO2G
C903
1N 0805
1
SK905
VCR IN L
F
VCR IN
C
EMC
N
VCR IN R
PHONO2G
C904
1N 0805
0V_SIG
1
SK906
TAPE IN L
F
TAPE IN
EMC
N
TAPE IN R
PHONO2G
C905
1N 0805
1
SK907
CD IN L
F
CD IN
EMC
N
CD IN R
PHONO2G
C906
1N 0805
1
SK908
TUNER IN L
F
TUNER IN
EMC
N
TUNER IN R
PHONO2G
B
C907
1N 0805
0V_SIG
EXT MAIN IN L
1
SK909
F
EXT
EMC
EXT MAIN IN R
N
MAIN IN
PHONO2G C908
1N 0805
1
SK910
EXT
F EXT SURR L
SURROUND
IN
EMC
N EXT SURR R
PHONO2G C909
1N 0805
EXT
1
SK911
CENTRE
IN
F EXT CTR L
EMC
N
EXT
EXT CTR R
SUB IN
PHONO2G
C910
1N 0805
A
1
SK912
EXT
F EXT EX IN L
EX IN
EMC
N EXT EX IN R
FIX900 FIX901
PHONO2G
C911 FIXING HOLE 3.5 FIXING HOLE 3.5
1N 0805
0V_SIG CHS3 C923 CHS4
100P NPO 0805
0V_SIG
1 2
All manuals and user guides at all-guides.com
3
+15V
INPUT SWITCHING
+15V1
AUXL1
AUX L
(Page 1)
AUXR1
AUX R
ZONE 2 L MIX
-15V1
ZONE 2 R MIX
AUX TO ZONE2
-15V
DVD TO ZONE2
SAT TO ZONE2
AV TO ZONE2
VCR TO ZONE2
TAPE TO ZONE2
DVDINL
CD TO ZONE2
TUNER TO ZONE2
INT MAIN TO ZONE 2
EXT MAIN TO ZONE 2
AUX IN L AUX TO ANALOGUE
DVDINR
AUX IN R DVD TO ANALOGUE
SAT TO ANALOGUE
DVD IN L AV TO ANALOGUE
DVD IN R VCR TO ANALOGUE
TAPE TO ANALOGUE
SATINL
SAT IN L CD TO ANALOGUE
SATINR
SAT IN R TUNER TO ANALOGUE
AVINL
AV IN L
AVINR
AV IN R
VCRINL
VCR IN L
VCRINR
VCR IN R
TAPE TO VCR
TAPEINL
TAPE IN L
TAPEINR
TAPE IN R TUNER TO VCR
CDINL
CD IN L AUX TO TAPE
CDINR
CD IN R DVD TO TAPE
SAT TO TAPE
TUNINL
TUNER IN L
TUNINR
TUNER IN R VCR TO TAPE
TAPE TO TAPE
EXTMINL
EXT MAIN IN L
EXTMINR
EXT MAIN IN R TUNER TO TAPE
SW901A
2PCO
INT MAIN IN L ANALOGUE L MIX
INT MAIN IN R ANALOGUE R MIX
L921C1_1.2_ipmux.sch
SW901B C912
100N 0805
2PCO R901
PCB1
10K 0805
L921PB bare audio
board board
L921PB
SC1
E874MC
EMC screen
INT DECODERS
( FROM DACS )
SK913
DAC LS 1
2
DAC RS 3
4
MAIN ANALOG IP GAIN SET
DAC LSB 5
6
ANALOGUE L MIX
DAC RSB 7
ANALOGUE R MIX
8
R902 R904
AMPCT8
FROM MAIN GR L
0R0 0805 0R0 0805
FROM MAIN GR R
R905
R903 0R0 0805
0R0 0805
0V_SIG
L921C3_1.2_gainrange.sch
SK914
DAC L 1
2
DAC R 3
4
DAC C 5
6
DAC S 7
8
R906 R908
AMPCT8
0R0 0805 0R0 0805
R907 R909
0R0 0805 0R0 0805
EXT/ INT DECODER SELECT
0V_SIG FROM MAIN GR L
FROM MAIN GR R
FROM INT MAIN L
FROM INT MAIN R
FROM INT SURR L
FROM INT SURR R
FROM INT CENTRE
FROM INT SUB
FROM INT EX L
FROM INT EX R
FROM EXT MAIN L
FROM EXT MAIN R
FROM EXT SURR L
FROM EXT SURR R
FROM EXT CENTRE
FROM EXT SUB
FROM EXT EX L
FROM EXT EX R
FIX902 FIX903 FIX904
FIXING HOLE 3.5 FIXING HOLE 3.5 FIXING HOLE 3.5
L921C2_1.2_extintmux.sch
C926
C924 CHS1 C925 CHS2 CHS5 C927
100P NPO 0805 100P NPO 0805 100P NPO 0805 100P NPO 0805
0V_SIG 0V_SIG 0V_SIG 0V_SIG
3
4 5
TAPE L MIX
TAPE R MIX
VCR L MIX
VCR R MIX
CONTROL LOGIC
AUX TO ZONE 2
DVD TO ZONE 2
SAT TO ZONE 2 (Page 7)
AV TO ZONE 2
VCR TO ZONE 2
TAPE TO ZONE 2
CD TO ZONE 2
TUNER TO ZONE 2
INT MAIN TO ZONE 2
EXT MAIN TO ZONE 2
AUX TO ANALOGUE
DVD TO ANALOGUE
SAT TO ANALOGUE ZONE 2 DCA /CS
AV TO ANALOGUE DCA SDATA
VCR TO ANALOGUE DCA SCLK
TAPE TO ANALOGUE DCA XMUTE
CD TO ANALOGUE ZONE 2 OUTS ENABLE
TUNER TO ANALOGUE
MAIN DCA /CS
AUX TO VCR AUX TO VCR
DVD TO VCR DVD TO VCR
SAT TO VCR SAT TO VCR
AV TO VCR AV TO VCR
VCR TO VCR VCR TO VCR
TAPE TO VCR
CD TO VCR CD TO VCR
TUNER TO VCR MAIN TO PHONES
ZONE 2 TO PHONES
AUX TO TAPE
DVD TO TAPE MAIN OUTS ENABLE
SAT TO TAPE
AV TO TAPE AV TO TAPE SURROUND DCA /CS
VCR TO TAPE
TAPE TO TAPE
CD TO TAPE CD TO TAPE
TUNER TO TAPE
CENTRE/SUB DCA /CS
GAIN RANGE A
GAIN RANGE B
GAIN RANGE C
ANALOGUE TO MAIN EX DCA /CS
INT DECODER
EXT DECODER
L921C7_1.2_ctrlogic.sch
Note: This connector
reversed in relation to
it's counterpart on the
digital board
CONTROL
INPUTS
SK916
22
21
20 AUD SDATA
19
18 AUD SCLK
17
GAIN RANGE A 16 AUD SEL 0
GAIN RANGE B 15
GAIN RANGE C 14 AUD SEL 1
13
12 AUD SEL 2
11
10 AUD CTRL EN
(Page 3)
9
8 AUD SPARE1
7
6 AUD SPARE2
5
4 AUD SPARE3
3
SK915 2 AUD SPARE4
1 1
2
3 FFC22V SM
C900A C900B
4
100PX4 SM 100PX4 SM
5
0V_SIG
CHS1 CHS1
AMPCT5
ANALOGUE
TO
A-D CONVERTER
A-D GROUND REF
ANALOGUE TO MAIN
INT DECODER
EXT DECODER
MAIN DCA IN L
MAIN DCA IN R
SURR DCA IN L
SURR DCA IN R
CENTRE DCA IN
SUB DCA IN
DRAWING TITLE
L921CT - AV8 audio board interconnections
EX DCA IN L
EX DCA IN R
(Page 2)
A & R Cambridge Ltd.
Pembroke Avenue
C922D
100PX4 SM Denny Industrial Centre
Waterbeach
CHS1 Cambridge CB5 9PB
Filename
J:\Change_Control\ECO_WIP\02_E143 L921 add 2 jumper links\L921_1.2.ddb - Documents\L921C9_1.2.PRJ
4 5
6
TAPE & VCR OUTPUTS
TAPE L MIX TAPE OUT L
TAPE R MIX TAPE OUT R
(Page 4)
VCR L MIX VCR OUT L
VCR R MIX VCR OUT R
ZONE 2 MIX L ZONE 2 DCA IN L
ZONE 2 MIX R ZONE 2 DCA IN R
L921C4_1.2_tape&vcr.sch
ZONE 2 & MAIN OUTPUTS
ZONE 2 DCA IN L
ZONE 2 DCA IN R ZONE2 OUT L
ZONE2 OUT R
(Page 5)
MAIN DCA IN L
MAIN DCA IN R
PHONES OUT L
ZONE 2 DCA /CS PHONES OUT R
DCA SDATA
DCA SCLK
DCA XMUTE MAIN OUT L
ZONE 2 OUTS ENABLE MAIN OUT R
MAIN DCA /CS
DCA SDATA
DCA SCLK
DCA XMUTE
L921C5_1.2_outs1.sch
R911
10K 0805
Power Supply
C900C
100PX4 SM
C900D
100PX4 SM
C921A
100PX4 SM (Page 8)
C921B
100PX4 SM
C921C
100PX4 SM
C921D
100PX4 SM
C922A L921C8_1.2_psu.sch
100PX4 SM
C922B
100PX4 SM
C922C
100PX4 SM
CHS1 SURROUND DCA /CS
DCA SDATA
DCA SCLK
DCA XMUTE
CENTRE/SUB DCA /CS
DCA SDATA
DCA SCLK
DCA XMUTE
EX DCA /CS
DCA SDATA
DCA SCLK
DCA XMUTE
SURR DCA IN L SURROUND OUT R
SURR DCA IN R
CENTRE DCA IN
SUB DCA IN
EX DCA IN L
EX DCA IN R
(Page 6)
SURROUND,CENTRE,SUB,& EX OUTPUTS
L921C6_1.2_outs2.sch
23425
Circuit Diagram
Notes:
02_E143
02_E028
ECO No.
6
7 8
1
SK918
TAPE OUT L F
EMC
TAPE OUT R N
TAPE OUT
PHONO2G
C913
1N 0805
1
SK919
VCR OUT L F
VCR OUT
EMC
VCR OUT R N
PHONO2G
C914
1N 0805
SK920
1
ZONE 2 OUT L F
EMC ZONE 2 OUT
ZONE 2 OUT R N
PHONO2G
+5V
C915
1N 0805
R910 0V_SIG
5K1 0805
SK917
1 C928D
2 100PX4 SM C928C
PHONES INSERTED 3V3 3 C928B 100PX4 SM
4 100PX4 SM C928A
EL1
5 100PX4 SM
Update Box
AMPCT5
CHS3
UPDATE_BOX
0V_SIG
GND AT
SK921
5V PSU
MAIN FRONT OUT L
1
F
EMC
N
MAIN FRONT OUT R
MAIN FRONT OUT
PHONO2G
C916
1N 0805
SURR OUT L
1
SK922
F
SURROUND OUT
EMC
SURR OUT R N
PHONO2G
C917
1N 0805
CENTRE OUT SK923
1
F
CENTRE
EMC
SUB OUT N
& SUB OUT
PHONO2G
C918
SK928 1N 0805
1
SK924
2 JP900 1
3 JUMPER
F
SUB3 OUT
MOLEX3MV
EMC SUB4 OUT
SK929 N
1
2 JP901
3 JUMPER
PHONO2G
C919
MOLEX3MV 1N 0805
EX OUT L
SK925
0V_SIG 1
F
EMC EX OUT
N
EX OUT R
SURROUND OUT L
PHONO2G
CENTRE OUT C920
SUB OUT 1N 0805
EX OUT L
EX OUT R
0V_SIG
WAF 16/7/02 2 JUMPER LINKS ADDED ACROS SK928 & SK929 1.2
MJT 29/01/02 Production release 1.1
INITIALS DATE DESCRIPTION OF CHANGE ISSUE
Drawn by:
Date Printed Sheet 9 of 9
DRAWING NO. L921C9
AD/subcon
16-Jul-2002
7 8
D
C
B
A