Apogee 10015b01 Service Manual
1
D
C
+15VDC
-15VDC
A+ OUT
A- OUT
B+ OUT
B- OUT
2
3
Notch and HF EQ's
SIG GND
IN A
IN B
10015B04.SCH
IN A
IN B
EQ lim A
EQ lim B
24V GND
4
+15VDC
SIG GND
-15VDC
A out
B out
SUB
8
JP1
FROM
POWER
D
PCB
FROM
INPUT
XLR's
TO VCA
C
1
2
3
4
5
HEADER 5
JP4
1
2
3
4
5
6
HEADER 6
JP3
1
2
3
4
5
6
HEADER 6
JP2
1
2
3
4
5
6
HEADER 6
7
6
Diff input
A + in
A - in
B + in
B - in
A+ out
A- out
IN GND
B+ out
B- out
ML A PHASE
ML B PHASE
24V GND
+24VDC
10015B02.SCH
EQ Lim input
A out
B out
SIG GND
+15VDC
-15VDC
5
LF EQ
10015B03.SCH
+2.5V
6
-15VDC
SIG GND
+15VDC
A EQ LIM
B EQ LIM
Apogee Sound, Inc.
Title
DA-SERIES, SINGLE AMP PROCESSOR
Size
Document Number
A
5
4
Date:
DOC#: 10015 / PART#: 11-0110
August 5, 1996
3
Sheet
2
1
of
5
1
B
AMP OUT A
AMP OUT B
10015B05.SCH
A
8
7
B
A
REV
B
8
7
6
5
4
3
2
1
D
C
B
A - in
A + in
IN GND
ML A PHASE
+24VDC
24V GND
B - in
B + in
IN GND
I2
F. B.
I1
F. B.
02-0078
I4
F. B.
I3
F. B.
221
R5
C7
2200p
2200p
C5
300p
C3
C9
300p
ML A phase
+24
24V GND
C6
300p
+24
C10
300p
+24
A- Input
A+ Input
1N4004
R1
10k0
B- Input
B+ Input
10k0
R2
D1
D2
K1
RELAY DPDT
05-0012
Q1
2N3904
K2
RELAY DPDT
05-0012
24V GND
A- out
A+ out
B- out
B+ out
A- return
A+ return
B- return
B+ return
20k0
20k0
R6
R8
10k00
.1%
R11
R10
10k00
.1%
10k00
.1%
R14
R12
10k00
.1%
10k00
.1%
10k00
.1%
R7
+15VDC
-15VDC
R9
C16
R13
2
U1A
3
C18
R15
6
U1B
5
.1%
+15VDC
8
4
-15VDC
C14
20p
.1%
C15
20p
20p
10k00
1
NE5532A
C1
100
C2
100
20p
10k00
7
NE5532A
D
A out
+15VDC
C
SIG GND
-15VDC
B out
B
A
ML B PHASE
1N4004
R3
ML B phase
8
7
10k0
R4
10k0
6
Q2
2N3904
24V GND
5
Apogee Sound, Inc.
Title
DA-SERIES, SINGLE AMP PROCESSOR
Size
Document Number
A
4
Date:
DOC#: 10015 / PCB#: 11-0110
August 5, 1996
3
Sheet
2
2
of
5
1
A
REV
B
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