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Description
Title:
Size
A3
Number
Revision
Date :
File Name:
Sheet of
Design By :
DATE
Design
Approval
2020/02/10
A
NKCJ/NKCH RCA-PC19C020D
4
8
MASTER OUT
C301
1nF(DNS)
C300
1nF(DNS)
Audio Circuit
AGND.
VOUTR1
VOUTL1
VOUTR2
VOUTL2
Line-out L
HP-R.
AGND.
HP-L.
Line-out R
AGND.
AGND.
MUTE
AGND.
AGND.
AGND.
A-4V
A+4V
A+4V
R320
11K
R322
33K
R324
18K
C310
330pF
C315
22pF
C319
1uF
C322
1uF
Q306
2SD2114KSM
R329
10K
R338
11K
R333
18K
R336
33K
C334
330pF
C328
22pF
C313
C329
22pF
R337
33K
R334
18K
C335
330pF
R339
11K
C320
1uF
C323
1uF
C311
330pF
R321
11K
R323
33K
C316
22pF
R325
18K
R328
10K
R327
10K
C325
1uF
R330
1Ω
C318
470pF
R326
22K
IC301
DRV604
R332
1Ω
R335
1Ω
R331
1K
IC300C
ICNJM-2114M
HP-R
HP-L
AGND
MUTING CIRCUIT
AGND.
AGND.
AGND.
AGND.
AGND.
AGND
Micphone
AGND.
+4V
-4V
AGND
AGND.
AGND.
Line-out R
Line-out L
A-4V
A+4V
A-4V
MASTER-R.
MASTER-L.
MUTE
Q303
2SD2114KSM
R313
10K
R315
1K
D300
1N4148
D301
1N4148
R311
0
+5V
C306
100pF
C305
100pF
2SD2114KSM
R309
1K
2SD2114KSM
R304
R306 10K
R302
100
R307
100
R308 10K
R305 2.4K
R303 2.4K
R301 10K
C302
100pF
C303
100pF
2
3
1
IC300A
ICNJM-2114M
6
5
7
IC300B
ICNJM-2114M
C304
100pF
Q302
2N4403
EC300
10uF/16V
EC301
220uF/25V
R300 10K
AGND.
AGND.
2
JK300A
JK4130-07520001
4
JK300B
JK4130-07520001
A+4V
A-4V
MUTE
+5V
AGND.
VOUTR1
VOUTL1
VOUTR2
VOUTL2
AGND.
TE300
To MAIN PCB TE5
TE301
To MAIN PCB TE6
HP-L.
HP-R.
AGND.
MUTE
C309
10uF
C333
10uF
C336
10uF
C324
10uF
C312
10uF
C326
2.2uF
C330
2.2uF
C332
2.2uF
SP300
SP301
D302
D
IT
P
D
1
E
0
4
U
0
4
D
P
Y
(D
N
S
)
D303
D
IT
P
D
1
E
0
4
U
0
4
D
P
Y
(D
N
S
)
AGND.
FCN300
To USB PCB FCN200
FCN301
To HP PCB FCN400