Kenwood NX-220 Service Manual page 99

P
TX-RX UNIT (X57-8040-10)
D
2
3
3.30V
C610
C609
C646
C647
C648
C649
CP601
100kx4
FSDET
CP602
10kx4
HOST_RDY
MCDICN
MCSCKCN
/MCCSXCN
CP603
100kx4
33M
RESET
D
33A
CP604
4
5
SB2
PTT2
VCO_MOD
50C
47p
C665
6
C666 47p
C667 47p
47p
C664
Q
SCHEMATIC DIAGRAM /
L602
L603
L604
L605
1.50V
G1
J5
J10
10u
CVDD_6
J11
CVDD_7
CVDD_8
L1
10u CVDD_9
L14
CVDD_10
CVDD_11
M4
CVDD_12
M11
CVDD_13
N7
CVDD_14
N8
CVDD_15
G11
USBPLLVDD
D2
USBVDD
F10
ADVDD
C14
AVDD
0.1u A13
RDVDD_1
0.1u B13 RDVDD_2
A14
0.01u
RDVDD_3
1000p C12
RCVDD_4
D14
AIN[0]
D13
AIN[1]
D12
AIN[2]
E11
AIN[3]
C1
PU
D4
DP
D3
DN
H13
SDA
H14
SCL
A12
RTCINX1
B12
RTCINX2
M2
GPIo13
M1
GPIo12
J3
GPIo11
H5
GPIo10
H4
GPIo9
G5
GPIo8
D1
GPIo7
C4
GPIo6
D5
GPIo5
A3
GPIo4
B3
GPIo3
E2
GPIo2
E1
GPIo1
F3
GPIo0
E14
XF
C650
1000p
100kx4
PTT SECTION
(X54-3760-XX) (B/3) CN6
R S
原理图
R615
4.7k R616
4.7k
VSS_6
VSS_5
VSS_4
VSS_3
VSS_2
VSS_1
X2/CLKIN
IC 60 3
DSP
T
NX-220
33M
15M
X2/CLKIN
15MDSP
33MDSP
C5
C2
B11
B9
B1
A2
F2 X2/CLKIN
H11
A'[0]
L7 A[0]
A[0]
M7 A[1]
A[1]
K7 A[2]
A[2]
A[3]
K6
A[3]
P6 A[4]
A[4]
A[5]
M6
A[5]
A[6]
L6
A[6]
N5 A[7]
A[7]
L5 A[8]
A[8]
A[9]
P4
A[9]
A[10]
N4
A[10]
A[11]
L4
A[11]
A[12]
P3
A[12]
N3 A[13]
A[13]
K9
A[14]
M8
A[15]
P7
A[16]
P5
A[17]
K1
A[18]
H3
A[19]
G3
A[20]
L8 D[0]
D[0]
K8 D[1]
D[1]
P9 D[2]
D[2]
M9
D[3]
D[3]
L9 D[4]
D[4]
P10 D[5]
D[5]
D[6]
M10
D[6]
D[7]
P11
D[7]
N11 D[8]
D[8]
D[9]
L10
D[9]
D[10]
P12
D[10]
D[11] N12 D[11]
D[12]
D[12]
M14
D[13]
D[13]
L11
D[14]
D[14]
D[15]
L12
D[15]
L13
A[20]
HINIT
SB2
/EMG
33MAS
X57-804 2/8
3
2
4
5
10
6
KEYI0
KEYI1
7
8
33M
RESET
33A
50C
99