Numark M1A Service Manual page 11

1 2
-12V
R905
***
Q902
R906
***
***
C901
*** R904
***
GND
D CN105
CN105B
3 C302
R301
2 2
470R
1 1 4u7/50
C301
562/50
CNP02*2.0 CNP03*2.0
GND
GAIN
L
IC202B
VR201B
2*
2*
R221
8K2
C
CN101B GND
GAIN
L2L 7
GND 6 GND R
VR201A
L2R 5
2
GND 4 GND 2
L1L 3
GND 2 GND
L1R 1
R222
8K2
CNP7*2.0
GND
GAIN
B
IC102B
VR101B
2*
2*
L
+12V
R121
8K2
GND
GAIN
VR101A
R
2
2
GND
R122
8K2
GND
A
1 2
3
+12V
R901
R903
***
***
Q901
R902
***
***
C304
56p/50
R307
+12V GND
C307
IC301A
100K
1u/50V
3 GND IC301B
R306
1 6
C305
R302 2 7
4K7
3K3
GND R305 5
C306 22U35
10K
R303 NJM4558M
1u/50V
3K9
-12V
NJM4558M
GND
R304
GND
100K
C303
R231
10P/50
2K7
5
C223 C225
7 2*
2*
6
562/50V ±10 ％
0.47u50
R225
100K
NJM4558M
R223 C227
47 3/50V ±10
2*
47K
2*
C221
C229
10P/50 GND
47 3/50V ±10
R237
2K7
+12V
C234
GND
IC202A R232
1u/50V
3
NJM4558M
2K7
C224
1
2
0.47u50
R226
GND
C233
100K
1u/50V C226
-12V 2
2
R224 562/50V ±10 ％
GND
47K
C228
47 3/50V ±10
2
2
C222 10P/50
C230
47 3/50V ±10
R238
2K7
R131
2K7
5
C123 C125
7 2*
2*
6
562/50V ±10
0.47u50 ％
R125
100K
C127
NJM4558M
47 3/50V ±10
R123
2*
2*
47K
C129
GND
C121
47 3/50V ±10
R137
10P/50
2K7
+12V
C134
GND
IC102A R132
1u/50V
3
2K7
C124
1
2
0.47u50
GND R126
C133
100K
1u/50V C126
-12V 2
NJM4558M
2
R124 562/50V ±10
％
GND
47K
C128
47 3/50V ±10
C122 10P/50 2
2
C130
47 3/50V ±10
R138
2K7
3
4 5
C402
221/50V
R404
22K
-12V GND
C417
IC401A
1u/50V C404
2 IRR
1
22U35
3
NJM4558M
C418
R403
GND
22K
1u/50V
GND +12V
2 6
2
5
GND
GND
6
C231 L
R411 R413
7
5
12K 12K
IC203B 47U16
NJM4558M
R233 R235
68K 20K
R241
4K7
％
2*
2*
％
GND
GND
R
-12V R412
C235
12K
1u/50V
2 GND
C232
1
3
IC203A 47U16
GND
C236
R234 R236
1u/50V
68K 20K
R242
+12V GND
2* 2
NJM4558M
4K7
2*
％
2
2
％
GND
GND
R409
12K
L
R407
12K
6
C131
7
5
47U16
IC103B
NJM4558M
R133 R135
68K 20K R141
4K7
％
2*
2*
％
GND
GND
R
R408
-12V
C135
12K
1u/50V
2 GND
C132
1
3
IC103A 47U16
GND
C136
R134 R136
1u/50V
68K 20K
R142
+12V
NJM4558M
4K7
％
2
2
％
GND
GND
4 5
6
VR401A
C401
2
2
221/50V
CN102B
1 MAS-R
GND
GND 2 GND
3 MAS-L
IC401B
+12V 4 +12V
C403 GND 5 GND
7 IRL
-12V 6 -12V
VR401B
22U35 7 MUTE
2*
2*
7PIN*2.0
NJM4558M
GND
CN104A
R308
3
22K
2
R405
1
22K
R309
CNP03*2.0
22K
GND
R406
22K
R414
R402
12K CH1 VOL
22K
L
R401 R
22K
GND
R
L
2
R310
***
C405
471/50V C408
R415
22K
22U35
2
6
7 GND
5
IC402B
NJM4558M
GND
R311
***
R410
12K
C406 C407
471/50V 22U35
2*
R416
22K
-12V GND
C413
IC402A
GND
1u/50V
2
1
3
NJM4558M
C414
GND
Title
1u/50V
GND +12V
Size
A3
Date:
File:
6
7 8
2 JK302
2
3
3
1
1
CKX-3.5-28
CN105C
JK301 2 CN105A
2 3
2 2
3
3 1 1
1
1
CNP03*2.0 CNP02*2.0
CKX-3.5-28
GND
CN103B CN103A
1 1
VR501B
2 2
2* 2 VR501A
3 3 2* 2
GSL45V-B50K,L-20C
4 4
GSL45V-B50K,L-20C
5 5
GND
IC403B
5
C412
R422
7
6
68R
100U16
R424
2
R418
68R
1K0
Q704
C2878
JRC4556D
R420
R702
5K6
GND
4K7
GND CN104B
C410
101/50V
1
GND 2
+12V
C416 3
GND
IC403A
CNP03*2.0
1u/50V
3
JRC4556D
C411
R421
1
2
68R
100U16
GND
C415
R423
2* R417
1K0
68R
1u/50V
-12V Q703
C2878
R419
GND R701
4K7
5K6
C409 101/50V
MUTE GND
Number Revision
19-Dec-2009 Sheet of
D:\曾辉军work\调音台\Numark M1\M1a\M1a MIX 090716 .DDB Drawn By:
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D
C
B
A