Fostex MR-16HD, Service Manual

Page: 62 / 68

62
& Service Manual
• KEY
PCB (3/4)
R71 10KA
1
2
3
4 5 6 7 8
R73 10KA
1
2
3
4 5 6 7 8
R74 10KA
1
2
3
4 5 6 7 8
R75 10KA
1
2
3
4 5 6 7 8
R72 10KA
1
2
3
4 5 6 7 8
74HC4051 U18
4
1
6
2
COM
3
7
4
5
5
INH
6
VEE
7
GND
8
C
9
B
10
A
11
3
12
0
13
1
14
2
15
VCC
16
0.01UF
C32
DGND
DGND
D+3.3
0.01UF
C62
0.01UF
C65
0.01UF
C64
0.01UF
C63
0.01UF
C61
R61 10KA
1
2
3
4 5 6 7 8
0.01UF
C39
0.01UF
C57
0.01UF
C53
0.01UF
C45
R62 10KA
1
2
3
4 5 6 7 8
AGND
10KB_CC
R56
1 3
2 4 5
R63 10KA
1
2
3
4 5 6 7 8
10KB
R47
1 3
2 4 5
R64 10KA
1
2
3
4 5 6 7 8
D+3.3
0.01UF
C60
0.01UF
C40
0.01UF
C48
10KB_CC
R57
1 3
2 4 5
10KB
R45
1 3
2 4 5
0.01UF
C56
0.01UF
C30
0.01UF
C37
AGND
0.01UF
C55
0.01UF
C31
0.01UF
C41
NON
C33
10KB
R50
1 3
2 4 5
0.01UF
C42
0.01UF
C46
A+3.3
AGND
10KB_CC
R58
1 3
2 4 5
74HC4051 U16
4
1
6
2
COM
3
7
4
5
5
INH
6
VEE
7
GND
8
C
9
B
10
A
11
3
12
0
13
1
14
2
15
VCC
16
AGND
D+3.3
0.01UF
C36
AGND
10KB
R70
1 3
2 4 5
0.01UF
C29
10KB_CC
R59
1 3
2 4 5
0.01UF
C35
10KB_CC
R55
1 3
2 4 5
10KB_CC
R60
1 3
2 4 5
R65 10KA
1
2
3
4 5 6 7 8
0.01UF
C50
0.01UF
C54
10KB
R46
1 3
2 4 5
0.01UF
C52
R66 10KA
1
2
3
4 5 6 7 8
10KB
R51
1 3
2 4 5
D+3.3
10KB
R52
1 3
2 4 5
0.01UF
C38
0.01UF
C43
10KB_CC
R53
1 3
2 4 5
10KB
R69
1 3
2 4 5
R67 10KA
1
2
3
4 5 6 7 8
10KB
R48
1 3
2 4 5
0.01UF
C51
0.01UF
C47
A+3.3
DGND
R68 10KA
1
2
3
4 5 6 7 8
A+3.3
0.01UF
C59
10KB
R49
1 3
2 4 5
DGND
74HC4051 U15
4
1
6
2
COM
3
7
4
5
5
INH
6
VEE
7
GND
8
C
9
B
10
A
11
3
12
0
13
1
14
2
15
VCC
16
0.01UF
C44
74HC4051 U17
4
1
6
2
COM
3
7
4
5
5
INH
6
VEE
7
GND
8
C
9
B
10
A
11
3
12
0
13
1
14
2
15
VCC
16
DGND
NON
C34
0.01UF
C58
0.01UF
C49
10KB_CC
R54
1 3
2 4 5
A+3.3
VOL3[1]
VOL3[4]
VOL3[0]
VOL3[3]
VOL3[4] VOL3[2]
AN[3]
VOL3[2]
VOL3[0]
VOL3[0-6]
VOL3[3]
VOL3[1]
VOL3[6] VOL3[5]
VOL2[3]
VOL2[3] VOL2[1]
VOL1[7]
VOL1[1] VOL1[2] VOL2[7]
VOL0[7]
VOL2[5]
VOL1[7] VOL0[7]
VOL0[5]
VOL1[0] VOL0[5]
VOL1[6]
VOL1[4]
VOL2[7]
VOL0[2]
VOL0[4]
VOL2[2]
FD_SEL[0]
VOL1[6] VOL0[6]
FD_SEL[1]
VOL1[2]
VOL1[5] VOL0[3] VOL0[2]
FD_SEL[2]
VOL2[0]
VOL0[1]
FD_SEL[0]
VOL1[5]
VOL0[0]
VOL0[0-7]
VOL1[1]
VOL2[1]
VOL0[4]
VOL2[0]
VOL1[3] VOL0[3]
FD_SEL[0-2]
VOL2[4]
VOL0[1]
VOL2[6]
VOL1[0-7]
VOL2[5] VOL2[2] VOL1[3]
VOL3[6]
FD_SEL[1] FD_SEL[2]
VOL3[5]
FD_SEL[0] FD_SEL[1] FD_SEL[2]
VOL1[4]
AN[0-3]
VOL2[4]
VOL0[6]
AN[0] AN[1]
VOL0[0]
AN[2]
VOL2[6]
VOL2[0-7]
VOL1[0]
FD_SEL[0] FD_SEL[1] FD_SEL[2]
15/16TRK
13/14TRK
11
/12TRK
9/10TRK
MASTER
EFF SEND 2CH
EFF SEND 4CH
PA
N
7
C
H
EFF SEND 1CH
P
AN 1CH
EFF SEND 6CH
EFFECT
4TRK
EFF SEND 8CH
PA
N
6
C
H
EFF SEND 5CH
2TRK
P
A
N 5CH
8TRK
5TRK
3TRK
PA
N
3
C
H
7TRK
P
A
N 4CH
EFF SEND 3CH
E
FF SEND 7CH
1TRK
6TRK
ROOT
STEREO BUSS
P
A
N 8CH
P
A
N 2CH
ROOT