83
J
K
L
M
N
O
P
Q
R
S
1
2
3
4
5
6
7
8
9
10
11
12
13
14
D
G
S
D
G
S
D
G
S
D
G
S
D
G
S
D
G
S
D
G
S
R410
R423
C616
C431
C432
R474
Q106
D401
Q505
F1
C666
C667
4
Q511
L502
Q902
Q905
CP607
CP610
R501
R502
R503
R504
R509
R514
R515
R516
R517
R518
R901
R902
R906
R907
R909
TH101
R529
R147
R148
R919
R920
R150
R921
C501
C502
C504
R161
R164
R165
C511
C512
R550
C901
C902
C904
C905
C906
C907
C909
C910
C913
C536
C541
C548
C549
C550
C551
C552
C177
C178
D501
C181
D509
IC101
C182
D902
CN3
CN4
C599
IC901
CP501
1
11 ENC1
ENC2
ENC4
GND
ENC3
VOL_GND
VOL
33A
NC
SB1
+B
SB1
RXD0
J1
EXT. MIC
GND
OPTDET
50V
PTT/RXD
MICI
MICO
4
5
1
8
+
J2
EXT. SP
SPO
SPI
TXD
AE
S
J79-0314-19
R653
C618
C620
C622
C623
C614
Q502
Q503
R1
R2
R409
R420
R422
C429
C430
Q105
Q501
C664
C665
Q512
L120
C491
R511
R144
R146
R149
C505
C507
R549
R551
C130
C520
D101
C173
Q403
C174
C175
CN1
Q107
Q108
Q109
F2
L504
Q901
Q903
Q904
Q907
L902
L903
L904
L905
J2
R505
R903
R904
R905
R908
R152
R153
R154
R155
R156
R157
C503
R158
R159
C506
R160
R162
R163
R166
R167
C513
R168
R169
C903
C908
C528
C529
C914
C533
C534
C179
C180
IC504
IC902
3
4
SB2
1
MICI
GND
SPAF
TV1
TV2
33A
3
1
4
6
GND
PTT
/S1
/S2
/EMG
GND
1
6
3
4
1
6
3
1
4
6
TXD0
3
1
4
5
SP+
SP–
MIC+
MIC–
1
4
3
1
4
5
5
1
6
10
+B
+
TX-RX UNIT (X57-8050-XX) -10: K, K2, K3 -11: K4, K5, K6, E, E2, E3
Component side view (J79-0314-19)
Component side
Foil side
Layer 1
Layer 2
Layer 3
Layer 4
Layer 5
Layer 6
Layer 7
Layer 8
PC BOARD
NX-320