Fostex X-24 用户手册
X-24
23
MIXER / JACK PCBs
5. CIRCUIT & BLOCK DIAGRAMS
D103
+VCC
2
U201B
-VCC
3
-16dBV
7
4560
12K
10/16
PHONES OUT
(16ohm 20mW)
PUNCH IN/OUT
J5
DTC314TK
J
A
CK PCB (2/2)
2
1
W4
HGND
J6
R
L
GND
R253
47K
R156
16
R255 47K
R256
16
3
1
2
2
1
3
W3
1
2
3
J3
C156
STEREO OUT
L
R
-10dBV
R154
1K
3
1
2
U105
DTC314TK
2
1
3
J4
R254
1K
R155
47K
U205
470/10
470/10
-10dB
-5dB
0dB
+3dB
+6dB
CH1 BAR GRAPH
-10dB
-5dB
CH2 BAR GRAPH
D106
D107
D104
D105
D203
D204
0dB
+3dB
+6dB
-10dB
-5dB
0dB
CH3 BAR GRAPH
D206
D207
D205
D303
D304
D305
+3dB
+6dB
D306
D307
-10dB
-5dB
0dB
+3dB
+6dB
CH4 BAR GRAPH
D406
D407
D403
D404
D405
H+VCC
R420
12K
C414
10/16
R422 10K
OUT1
1
OUT2
2
OUT3
3
OUT4
4
OUT5
6
VCC
9
GND
5
AMP
7
IN
8
U404
BA6124
R421 5.1K
C415
10/16
-VCC
+VCC
C214 10/16
C314
10/16
R220
12K
R222
10K
R320
12K
R322
10K
OUT1
1
OUT2
2
OUT3
3
OUT4
4
OUT5
6
VCC
9
GND
5
AMP
7
IN
8
U304
BA6124
OUT1
1
OUT2
2
OUT3
3
OUT4
4
OUT5
6
VCC
9
GND
5
AMP
7
IN
8
U204
BA6124
R321 5.1K
R221
5.1K
C215
10/16
C315
10/16
-VCC
-VCC
C114 10/16
R120
12K
R122
10K
OUT1
1
OUT2
2
OUT3
3
OUT4
4
OUT5
6
VCC
9
GND
5
AMP
7
IN
8
U104
BA6124
R121
5.1K
C115
10/16
-VCC
C153
220P
1
20KAA
-VCC
R153
47K
3
4
U5A
-VCC
C254 22P
C255 10/16
6
5
7
U5B
4556
C256
MASTER
F
ADER
C250
220P
C251 22P
C252 10/16
C253
220P
R250 68K
R251 12K
R252
24K
6
5
U4B
4
5
6
R134B
(+6dB)
(+7.1dB)
-10dBV
C150
220P
C151
22P
C152 10/16
R150
68K
R151 12K
R152
24K
2
3
R134A
2
3
8
4
1
U4A
4560
+VCC
-10dBV
C154 22P
C155 10/16
2
8
1
4556
+VCC
PA
N
A.B
-17.1dBV
R116
24K
R117 24K
1
2
3
45
R133 50KB
8
9
6
U101D
S T
L
S T
R
R118
30K
R119
30K
R218 30K
R219
30K
PA
N
A.B
R216 24K
R217 24K
1
2
3
45
R233 50KB
8
9
6
U201D
PA
N
A.B
R316
24K
R317 24K
1
2
3
45
R333 50KB
8
9
6
U301D
R318
30K
R319
30K
R418
30K
R416
24K
R419 30K
PA
N
A.B
R417 24K
1
2
3
45
R433
50KB
8
9
6
U401D
R11
12K
R12
12K
C13
22P
C14
10/16
6
5
7
4560
3
1
2
-VCC
R10
12K
C11
22P
2
3
8
1
U6A
4560
R127 12K
R227 12K
R327
12K
R427 12K
+VCC
C413 10/16
R415
47K
INPUT
F
ADER
R413
12K
1
2
3
R431 20KA
6
5
7
U3B
4560
R414 12K
R412 100K
R426
12K
U403
DTC144EK
+VCC
1
4
R314 12K
R312 100K
-VCC
R315
47K
R326
12K
3
1
2
U303
DTC144EK
+VCC
-VCC
INPUT
F
ADER
R313
12K
2
3
R331 20KA
2
3
8
1
U3A
4560
+VCC
C313 10/16
47K
R214 12K
R212
100K
R226
12K
3
1
2
U203
DTC144EK
+VCC
-VCC
C213 10/16
R215
INPUT
F
ADER
R213
12K
1
2
3
R231 20KA
6
5
7
U2B
4560
1
-VCC
U101A
INPUT
F
ADER
(6.0dB)
-16.0dBV
R113
12K
1
2
R131 20KA
2
3
8
4
1
U2A
4560
R114 12K
R112
100K
+VCC
-VCC
-10dBV
C113
10/16
R115
47K
R126
12K
3
2
U103
DTC144EK
+VCC
C109 10/16
R111
12K
D101
1 3
10
1 2
U101B
R125 47K
D102
R109
30K
+VCC
3
1
2
U102
DTC144EK
-VCC
A.B
4
3
5
C209 10/16
R211
12K
D201
D202
+VCC
REC
2
1
1 4
71
3
U201A
+VCC
R225
47K
R209
30K
10
11
1 2
PB
A.B
4
3
5
U201C
1
1 4
U301A
+VCC
C309
10/16
3
1
2
U202
DTC144EK
-VCC
REC
2
71
3
10
11
1 2
U301B
-VCC
R311 12K
R325
47K
D301
D302
R309
30K
+VCC
3
1
2
U302
DTC144EK
-VCC
PB
4
3
U301C
C409
10/16
R411
12K
D401
D402
+VCC
A.B
REC
5
2
1
1 4
71
3
U401A
U401B
+VCC
-VCC
R425
47K
R409
30K
10
11
1 2
PB
A.B
4
3
5
U401C
3
1
2
U402
DTC144EK
-VCC
R13
47K
C12
220P
U6B
C10 220P
4
-VCC
C2
47/10
C1
47/10
T
OP SHIELD
1
J7
C5
47/10
C6
47/10
A
GND
HGND
A
GND
-VCC
H-VCC
A
GND
E / D 1
E / D 2
E / D 3
E / D 4
A
B 1
A
B 2
A
B 3
A
B 4
P
M U T E
2
1
1
3
4567
89
W8
P
B 1
P
B 2
P
B 3
P
B 4
R
E C 1
R
E C 2
R
E C 3
R
E C 4
2
13
13
4
5
6
7
8
W7
T R K 3
T R K 4
T R K 1
T R K 2
T R K 3
T R K 4
A
B
SEL
SW
P I T C H
T R K 1
T R K 2
A
B
R E C
LED
2
1
1
3
4
5
6789
1 0
1 1
1 2
1 3
WIDE PITCH
CONTR
OL
(+15% <->
-50%)
1
2
3
4
5
R135
10KB
R205
100K
R207
47K
C205
10P
C207
10/16
6
5
7
U1B
2068
C206
10P
H+VCC
SW4
SW1
SW2
SW3
3
2
1
U7
DT
A144EK
3
2
1
U8
DT
A144EK
3
2
1
U9
DT
A144EK
3
2
1
U10
DT
A144EK
D1
D2
D3
D4
R4
750
R3
750
R2
750
R1
750
2
1
2
1
2
1
1
TRIM
(0dB <-> 40dB)
R203
1K
R204
1K
4
6
5
R230B
1
3
2
8
7
9
R230A
100KCC
C203
100/10
C204
100/10
2
1
3
W2
A
GND
R206
100K
A
GND
D5
D6
3
2
1
U11
DT
A144EK
3
2
1
U12
DT
A144EK
R6
750
R5
750
2
2
SW5
W6
14K
ohm
INPUT IMP
R310 47K
R410
47K
C308 10/16
C408
10/16
-10dBV
14K
ohm
-10dBV
LINE IN3
LINE IN4
INPUT IMP
-10dBV
14K
ohm
LINE IN2
INPUT IMP
4.3K
J204
R210
47K
C201 NON
MIXER PCB
REC
-10dBV
R105
100K
R107
47K
C105
10P
C107
1
1 4
7
11
TRIM
(0dB <-> 40dB)
R103
1K
R104
1K
C103
100/10
C104 100/10
4
6
5
R130B
1
3
2
8
79
R130A
100KCC
R102 12K
INPUT MIC 1/3
(BALANCE)
MIC :12K
ohm
LINE:22K
ohm
INPUT IMP
-10dBV <> -50dBV
J
A
CK PCB (1/2)
3
2
1
J102
J101
C101 NON
C102 NON
R101
1
2
3
J1
2
1
3
W1
2
3
8
4
1
U1A
2068
+VCC
+VCC
-VCC
-VCC
PB
C106
10P
U101C
R106
100K
C202 NON
R201
12K
R202 12K
1
2
3
J2
INPUT MIC 2/4
(BALANCE)
MIC :12K
ohm
LINE:22K
ohm
INPUT IMP
-10dBV <> -50dBV
3
2
1
J202
J201
LINE IN1
R108
J104
R110 47K
C108 10/16
C208
10/16
-10dBV
14K
ohm
INPUT IMP
R208 4.3K
R308
4.3K
R408
4.3K
J304
J404
A
GND
+VCC
-VCC
HGND
H+VCC
H-VCC
PO
WER LED
D7
2
1
3
4
5
6
W5
+VCC
H+VCC
-VCC
H-VCC
-VCC
TRK1
TRK2
TRK3
TRK4
A.B
REC
LED
R7
750
1
+VCC
A
GND
HGND
A
GND
H-VCC
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