Kenwood NXR-901 Service Manual page 171

900mhz digital base-repeater ocxo unit kxk-3 m3
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C
R484
0
C516
1000p
C1
D_A3
A2
C2
D_A7
A6
C3
D_CS1
A18
C4
NC2
C5
D_A11
A10
ASH MEMORY
C6
D_A15
A14
IC314
D1
D_A2
A1
D2
D_A6
A5
D3
NC3
D4
NC4
D5
D_A12
A11
D6
D_A16
A15
V
Lo_VoL_DET27
Hi_VoL_DET
FRAME_SW
C515
1u
C517
0.1u
R464
1
16
RSET
VP
2
15
4.7k
CP
DVDD
3
14
R479
CPGND
MUXoUT
4
13
AGND
LE
C507
5
12
RFINB
ENCE
DATA
6
11
0.01u
RFINA
CLK
C508
7
10
AVDD
CE
22
8
9
0.1u
REFIN
DGND
C509
2
IC315
1u
2
ADF4001BRUZ
12.288MHz PLL
0
1u
1
L312
R485
u
1.5u
10
50MPU
C313
INVERTER
WU04FK-F
8
R452
10
VCC
7
TX_DSP_CLK
R453
10
1Y
6
3A
R678
5
R454
10
D
2Y
0
33MPU_A
EARTH_4
CHASSIS
GND
R446
R460
EMU0_D
0
47k
R461
EMU1_D
47k
33MPU-2
R516
47k
R517
47k
R518
47k
oCXo_ST_G
oCXo_ST_R
D_D7
D_D6
D_D5
D_D4
D_D3
D_D2
D_D1
D_D0
R489
0
R491
0
R492
0
R493
0
R494
0
DiPSW2
R495
0
DiPSW1
R496
0
R497
0
R498
0
R499
0
R500
0
R501
0
VoLUME_IN
R502
0
R503
0
R504
0
IC318
TC7SH126FU-F
IC318-321
1
5
BUFFER
G
VCC
2
INA
3
4
GND
oUTY
IC319
1k
TC7SET126FU-F
4
3
oUTY
GND
2
INA
C523
5
1
VCC
G
0.1u
IC320
TC7SET126FU-F
4
3
oUTY
GND
2
INA
C524
5
1
VCC
G
0.1u
IC321
TC7SET126FU-F
3
4
oUTY
GND
2
INA
C525
5
1
VCC
G
0.1u
FRAME_DET
33MPU
C528
10u
A13
A19
A12
A20
B11
CVSS9
A11
DVDD5
D10
D6
C10
C575
D7
0.01u
B10
D8
A10
D9
D9
D10
C9
D11
B9
D12
D_D4
A9
HD4
D8
D13
C8
D14
B8
D15
D_D5
A8
HD5
B7
D
103
104
105
106
107
108
109
110
111
112
P117
113
P116
114
P115
115
P114
116
30625MGP490GU
P113
117
P112
118
P111
119
P110
120
P107/AN07/KI3
121
P106/AN06/KI2
122
P105/AN05/KI1
123
P104/AN04/KI0
124
P103/AN03
125
P102/AN02
126
P101/AN01
127
AVSS
128 P100/AN00
PLL_12_SDo4
PLL_12_SCLK4
33SH
TX_DSP_CLOK
33MPU
P125
P126
P127
P50/WRL/WR
P51/WRH/BHE
P52/RD
P53/BCLK
P130
P131
P132
P133
MPU
P54/HLDA
P55/HoLD
IC325
P56/ALE
P57/RDY/CLKoUT
P134
P135
P136
P137
BEEP
X301
R566
L77-1984-05
0
Q307
C549
C552
2SC4738F
R560
12p
15p
10k
CLOCK
SHIFT SW
M12
R605
N12
L11
R606
M11
HD1
N11
R624
CVDD5
L10
INT3
M10
INT2
N10
R650
INT1
K9
INT0
L9
R626
NMI
M9
HBIL
N9
IACK
K8
R607
BDX2
L8
R608
BDX0
M8
HD0
C584
N8
DVSS6
K7
0.01u
DVDD4
E
64
R662
0
BER_DAT_L
63
R663
0
BER_CLK_L
62
R664
0
RY
61
60
D_WR
59
D_RD
58
57
EVOL_LD
56
EVOL_DATA
55
R653
0
EVOL_CLK
54
53
R673
47k
52
R656
51
R674
47k
50
R657
0
DSP_HRDY
0
49
48
47
R660
0
AMP_SW
46
R661
0
AF_MUTE
45
R667
0
BER_EN
44
R668
0
D_iNT
43
TXD_D
42
RXD_D
41
40
R672
39
47k
C565
10u
C566
1000p
PWR_ST_R
CLOCK
SHIFT SW
Q308
2SC4738F
R604
10k
DSP_RST
0
TX_CoPWAD
0
D_D1
47k
C585
0.01u
R648
0
FRAME_T
R649
100
47k
R651
0
47k
D_A1
0
0
TX_CoSDTi
D_D0

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