Kenwood NXR-700 Service Manual page 180

0
0
OCK
FT SW
Q12
4738F
DSP_RS
D3
C277
0.01u
D2
C278
10u
C279
0.01u
C283
0.1u
AND GATE
IC38
TC7SET08FU-F
4 3
oUTY GND
2
INA
5 1
VCC INB
R302
100k
H
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
R409
0
BUFFER
IC39
TC7SH125FU-F
PAG_SW 1 5
R389
G VCC
2
INA
0
3 4
GND oUTY
C345 0.1u
SDA R316 0
SCL R317 0
TX_TEMP_PRT R318 0
TX_ANT_SW R319 0
TX_DDS_EN R320 0
VR_EN 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
SR_oE R329 0
TX_8AD_EN R330 0
SR_EN R331 0
TX_SDi1 R332 0
SR_DATA R333 0
TX_SCLK1 R334 0
SR_CLK R335 0
TX_SDo1 R336 0
R337
0
50MPU
SDA
SCL
RX_8AD_EN
RX_iF_BW2
RX_iF_BW1
RX_SDi0
NXR-700
(SCHEMATIC DIAGRAM X53-413)
CN69
R390
105mV FOR MIC TA
25mV FOR TD
R391
5.0V
R392
R361 0
R362 0
STANDARD DEVIATION RX:100mV
FM WIDE/NARROW
R363 0
R364 0
R374 0
R365 0
I
APPENDIX 3
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
0 D_GND
11
SCK
12
TEMP_PRT
13
ANT_SW
14
VER
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_oE
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
0 CN57
1 GND
2 GND
0
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
15 AD_DAT_READ
1
2
3