Kenwood NXR-700 Service Manual page 126

DSP_RS
D3
R409
D2
0
PAG_SW
C283
TX_ANT_SW
0.1u
AND GATE VR_EN
IC38
TC7SET08FU-F
4 3
oUTY GND
2
INA
5 1
VCC INB
R302
100k
SR_oE
SR_EN
SR_DATA
SR_CLK
H
SCHEMATIC DIAGRAM
Note : The components marked with a dot (•) are parts of layer 1.
mV:AC voltage value measured with an electronic voltmeter.
The unit is mVrms.
V:DC voltage value
rms:60% modulation TX signal or RX signal
Audible signal:Measures it by 1kHz
Sub audible signal:Measures it by 100Hz
BUFFER
IC39
TC7SH125FU-F
1 5
R389
G VCC
2
INA
0
3 4
GND oUTY
C345 0.1u
CN69
SDA R316 0
SCL R317 0
TX_TEMP_PRT R318 0
R319 0
TX_DDS_EN R320 0
R321 0
TX_PLL_440_EN R322 0
TX_PLL_132_EN R323 0
TX_PLL_440_CE R324 0
TX_PLL_132_CE R325 0
TX_LDT R326 0
TX_2DA_EN R338 0
TX_3DA_EN R327 0
TX_2DA_CE R328 0
R329 0
TX_8AD_EN R330 0
R331 0
TX_SDi1 R332 0
R333 0
TX_SCLK1 R334 0
R335 0
TX_SDo1 R336 0
R337
0
50MPU
SDA R361
SCL R362
RX_8AD_EN R363
RX_iF_BW2 R364
RX_iF_BW1 R374
R390 0
105mV FOR MIC TA
25mV FOR TD
R391 0
5.0V
R392 0
0
0
STANDARD DEVIATION RX:100mV
FM WIDE/NARROW
0
0
0
I
NXR-700
CN56
1
GND
2
GND
3
PAG
4
GND
5
CoNT_5.0V
6
D_GND
7
CoNT_5.0V
8
D_GND
9
SDA
10
D_GND
11
SCK
12
TEMP_PRT
13
ANT_SW
14
DDS_EN
15
VR_EN
16
440_EN
17
132_EN
18
440_CE
19
132_CE
20
LDT
21
2DA_EN
22
3DA_EN
23
2DA_CE
24
SR_Eo
25
8AD_EN
26
SR_EN
27
SDi1
28
SDo0
29
SCLK1
30
SCLK0
31
SDo1
32
GND
33
MoD
34
WP
35
GND
36
GND
CN57
1
GND
2
GND
3
WP
4
D_GND
5
E2PRoM_SDA
6
CoNT_5.0V
7
E2PRoM_SCL
8
D_GND
9
AD_CS
10
iF_BW_SW
11
AD_DAT_WRiTE
12
NC(iF_NW_SW)
13
AD_CLK
14
GND
1
2
3