Kenwood NXR-800 Service Manual page 137

Z
TX UNIT (X56-3120-10) (A/3)
450-480MHz-->
13.8V
SCLK0
SDo0
WP
33MPU
oX_SCLK2
oX_SDo2
PLL_19_EN
19.2MHz -->
REF_LDT
VCXO_DA_EN
OCXO_EXIST
19.2MHz -->
VOLTAGE
REGULATOR
V-8
IC809
NJM7808FA-ZB
IN oUT
GND
33MPU
oX_SCLK2
OCXO_EXIST
oX_SDo2
REF_SW2
<--10MHz
<--10MHz
10MHz--->
Note : The components marked with a dot (
AA
SCHEMATIC DIAGRAM
CN805
1 GND
2 GND
3 33MPU
4
oX_SCLK2
5 GND
6 oX_SDo2
7 GND
R869 R830 8 PLL_19_CE
100k 0 9 GND
10
R831 PLL_19_EN
0 11 GND
R832 REF_LDT
12
0 13 GND
R833 14 VCXo_DA_EN
0 15 GND
R834 16 oCXo_EXiST
0 17 GND
R835 18 oCXo_CURR
0 19 GND
R836 20 oCXo_oN
0 21 GND
R837 22 oCXo_VR_EN
0 23 GND
24 oX_SDi2
25 GND
26 REF_iN_oUT
R865 27 iMP_H_L
R840 100k 28 REF_EXiST
0 R866 29 oX_SDA
R845 0 30 EXT_EXiST
0 R867 31 oX_SCL
0 32 REF_SW
33 WP
34 REF_SW2
35 GND
36 GND
8V
CN807
1 OCXO
2 GND
CN803
1 33MPU
2 GND
3 oX_SDA
4 oX_SCL
5 oCXo_VR_EN
oCXo_oN
6
7 oX_SCLK2
8
oCXo_CURR
9 oX_SDi2
10 oCXo_EXiST
11 oX_SDo2
12 GND
13
REF_SW2
LPF12
C576
18p
L434
CN406 REF1
19.2MHz -->
390n
LPF13
C575
18p
L433
CN405 REF2
19.2MHz -->
390n
CN408
REF_IN
CN407 OCXO
CN403
REF oUT
REF SIGNAL
OUTPUT
•
) are parts of layer 1.
AB
SCLK0
SDo0
OPTION UNIT(OCXO)
X42-328 -CN3
RX UNIT
X55-310 -CN45
CONTROL UNIT
X53-414 -CN302
OPTION UNIT(OCXO)
X42-328 -CN2
AC
NXR-800
+20dBm
+20dBm CN802
FINAL UNIT
450-480MHz--> TX oUT
X45-382 (C/5)
-CN1
CN801
T:13.64V
1 E
R:13.72V
FINAL UNIT
13.8V 2 B
X45-382 (C/5)
3 B
-CN12
CN804
1
GND
2 GND
3 WP
4
MoD
MOD
5 GND
6
SDo1
SDo1
7 SCLK0
8 SCLK1
SCLK1
9 SDo0
10
SDi1
SDI1
R812 0 11 SR_EN
SR_EN
R813 0 12 8AD_EN
8AD_EN
R814 0 13 SR_oE
SR_OE
R815 0 2DA_CE
14
2DA_CE
R816 0 15 3DA_EN
3DA_EN
R817 0 16 2DA_EN
2DA_EN
R818 0 17 LDT
LDT
18
R819 0 132_CE
132_CE
R820 0 19 440_CE
440_CE
R821 0 132_EN
20
132_EN
R822 0 21 440_EN
440_EN
R823 0 22 VR_EN
VR_EN
R824 0 23 DDS_EN
DDS_EN
24 ANT_SW
25 TEMP_PRT
SCK
26
SCK
27 D_GND
DGND
28 SDA
SDA
29 D_GND
30 CoNT_5.0V
CoNT_5.0V
31 D_GND
CoNT_5.0V
32
33 GND
PAG
34
PAG
35 GND
36 GND
CN806
1
GND
2 GND
3 WP
4 GND
5 D_GND
6 SDA
7 D_GND
8 SCK
9 D_GND
10 CoNT_5.0V
11 D_GND
12 TEMP_PRT
D
13 GND
14 ANT_SW
15 GND
16 TEMP_RST
TEMP_RST
17 GND
18 FAN_CoNT2
FAN_CONT2
19 GND
20 FAN_CoNT
FAN_CONT
21 GND
22 PWR_CoNT
PWR_CONT
23 GND
24 PWR_PRT
PWR_PRT
25 GND
26 RFL_PWR
RFL_PWR
27 GND
28 FWD_PWR
FWD_PWR
29 GND
30 FAN_CURR
FAN_CURR
31 GND
32 PA_CURR
PA_CURR
33 GND
34 NC(FAN_CURR2)
35 GND
36 GND
X56-312 (A/3) 6/6
AD
1
2
3
4
5
6
7
125