Akai ADA2, Руководство по обслуживанию

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1 1
2 2
3 3
4 4
5 5
6 6
D
D
C
C
B
B
A
A
5
200
Scenic
View
Dr.
Cumberland,
RI
02864
6
2018/5/1
Sheet:
of
OUTPUTS-20180501.SchDoc ADA2_RP.PrjPcb
Originally
Drawn
By:
Project: Sheet: Variant:
V
ariant
name
not
interpreted
Last
Modified
By:
Last
Modified:
Copyright
2017,
inMusic
Brands
All
Rights
Reserved
1 2 3 4 5 6
7
T
R
S
J7
TRS-1/4"
S9
S10
S11
CHGND
#NA ME? C168
#NA ME? C167
3
1
2
Q22 2SD2704K
R165
51.1
R170 51.1
+
22uF #NAME?
C164
D20
MMBD4148
OUTL
MU
T
E
1 2 3 4 5 6
7
T
R
S
J9
TRS-1/4"
S12
S13
S14
CHGND
#NAME? C181
#NAME? C180
3
1
2
Q23 2SD2704K
R176
51.1
R184 51.1
+
22uF #NAME?
C174
D21
MMBD4148
OUTR
MU
T
E
1 2 3 4 5 6
7
T
R
S
J10
TRS-1/4"
S15
S16
S17
CHGND
#NAME? C193
#NAME? C192
3
1
2
Q24 2SD2704K
R191
51.1
R198 51.1
+
22uF #NAME?
C187
D22
MMBD4148
OUT3
MU
T
E
1 2 3 4 5 6
7
T
R
S
J11
TRS-1/4"
S18
S19
S20
CHGND
#NAME? C200
#NAME? C199
3
1
2
Q25 2SD2704K
R203
51.1
R206 51.1
+
22uF #NAME?
C198
D23
MMBD4148
OUT4
MU
T
E
Main Ou t Le ft Main Ou t R ight Assi gn Ou t 3 Assi gn Ou t 4
2 3
1
U24A
NJM4580M
R166
4.64K
R174
4.64K
R171
221
R172
221
R167
18.7K
R175
18.7K
2,200pF
#NAME?
C170
150pF #NAME?
C172
150pF #NAME?
C166
DAC
L
-
DAC
L
+
DAC
L
6 5
7
U24B
NJM4580M
R177
4.64K
R185
4.64K
R179
221
R180
221
R178
18.7K
R186
18.7K
2,200pF
#NAME ?
C178
150pF #NAME?
C179
150pF #NAME?
C176
D
A
CR-
D
A
CR+
DAC
R
2 3
1
U25A
NJM4580M
R187
4.64K
R192
4.64K
R189
221
R190
221
R188
18.7K
R193
18.7K
2,200pF
#NAME ?
C186
150pF #NAME?
C188
150pF #NAME?
C185
DAC
3
-
DAC
3
+
DAC
3
6 5
7
U25B
NJM4580M
R194
4.64K
R201
4.64K
R199
221
R200
221
R195
18.7K
R202
18.7K
2,200pF
#NAME ?
C194
150pF #NAME?
C196
150pF #NAME?
C191
DAC
4
-
DAC
4
+
DAC
4
To To p Le ft PCB
DAC
L
DAC
R
OUTL OUTR
+VA
-VA
Mast er Volu me
2 3
1
U27A
NJM4580M
6 5
7
U27B
NJM4580M
DAC
L
DAC
R
HP_
C
H
L
H
P
_
CHR
2 3
1
U28A
NJM4580M
6 5
7
U28B
NJM4580M
DAC
3
DAC
4
HP_
C
H
3
HP_
C
H
4
1 2 3 4 5 6 7 8 9 10
J12 SIL
SHROUDED
2.0mm
HP_
C
H
L
HP_
C
H
R
+VA
-VA
HP_
C
H
3
HP_
C
H
4
MU
T
E
To Fr on t P anel PC B
He adpho ne Mi x Ou tpu t
0.1uF
#NAME?
C202 0.1uF
#NAME ?
C207
-
4
+
8
U24C
NJM4580M
0.1uF
#NAME?
C203 0.1uF
#NAME ?
C208
-
4
+
8
U25C
NJM4580M
0.1uF
#NAME?
C204 0.1uF
#NAME ?
C209
-
4
+
8
U26C
NJM4580M
0.1uF
#NAME?
C205 0.1uF
#NAME ?
C210
-
4
+
8
U27C
NJM4580M
+VA -VA
1 2 3 4 5 6 7
J8
SIL SHROUDED 2.0mm
R169 47.5K R183 47.5K R197 47.5K R205 47.5K
R168
1.50K
R182
1.50K
R196
1.50K
R204
1.50K
2 3
1
U26A
NJM4580M
6 5
7
U26B
NJM4580M
DAC
3
DAC
4
OUT3 OUT4
0.1uF
#NAME?
C206 0.1uF
#NAME ?
C211
-
4
+
8
U28C
NJM4580M
1,000pF #NAME?
C171
1,000pF #NAME?
C184
1,000pF #NAME?
C195
1,000pF #NAME?
C201
GND GND GND GND
GND
GND GND GND GND
GND
GND
GND
GND
GND
GND