Kenwood NXR-700 Service Manual page 187

1
REF_SW2
WP(SYS-RST)
REF_SW
oX_SCL
EXT_EXiST
oX_SDA
REF_EXiST
iMP_H_L
REF_iN_oUT
oX_SDi2
oCXo_VR_EN
oCXo_oN
oCXo_CURR
oCXo_EXiST
VCXo_DA_EN
REF_LDT
PLL_19_EN
PLL_19_CE
oX_SDo2
oX_SCLK2
33MPU
2
3
GND
GND
RX_PWR_SAVE
oCXo_ST_R
oCXo_ST_G
VoLUME_IN
PWR_ST_R
MOD_D_OUT
GND
RX_AUDIO_D
BEEP
MIC_D_IN
iNRA_SW
HooK_RXD_SCM
AMP_SW
SCM_EN
AF_MUTE
iNSP_SW
EVOL_DATA
PTT_AM16C
EVOL_CLK
A
CONTROL UNIT2 (X53-4140-XX)
CN400
GND
1
GND
2
3
4
5
6
7
8
9
10
11
GND 12
13
GND
14
15
GND 16
17
GND
18
19
20
GND
21
GND
22
23
GND 24
25
GND 26
27
GND 28
29
GND 30
31
GND
32
3.3V
33
34
GND 35
GND
36
L326
J703
L327
J702
CN401
1
CHASSIS GND
2
FRAME 12.5Hz
3
4
5
6
7
8
9
10
11
12
13
NC 14
15
16
17
18
19
20
21
22
0.1u
C359
BUFFER
IC300
TC7SET126FU-F
4 3
oUTY GND
2
INA
5 1
VCC G
0.1u
C360
BUFFER
IC301
TC7SET126FU-F
4 3
oUTY GND
2
INA
5 1
VCC G
R322 0
R927 0
R323 0
R928 0
R324 0
R929 0
R325 0
R930 0
R326 0
R327 0
R328 0
R329 0
R330 0
R331 0
R332 0
R333 0
R334 0
R335 0
R336 0
R337 0
L315
33MPU
R397
0
IC302
R318
ISL8485EIBZ
5 4 R357 0
100
GND D
6 3 R358 0
A DE
R319
7 2 R359 0
B RE
8 1 R360 0
100
VCC R
RS-485 DRIVER/RECIEVER
R363 0
R364 0
R365 0
R366 0
R931 0
R367 0
R368 0
R369 0
R370 0
R947 0
R371 0
R932 0
R372 0
R933 0
R373 0
R948 0
R374 0
R946 0
R375 0
B
33MPU
BER_CLK_L
BER_EN
BER_DAT_L
BER_EN
50MPU
BER_DAT
BER_CLK
REF_SW2
SYS_RST
REF_SW
oX_SCL
EXT_EXiST
oX_SDA
REF_EXiST
iMP_H_L
REF_iN_oUT
oX_SDi2
R417
oCXo_VR_EN
0
oCXo_oN
oCXo_CURR
oCXo_EXiST
33MPU
VCXo_DA_EN
REF_LDT
PLL_19_EN
PLL_19_CE Lo_VoL_DET
oX_SDo2
oX_SCLK2
33MPU
R404
0
R408
BUFFER
IC727
TC7SH126FU-F
1 5
G VCC
2
INA
R913
3 4
GND oUTY
0
FRAME_DET
33MPU
BUFFER
IC304
TC7SH125FU-F
1 5 33MPU
G VCC
2
R393
INA
0
3 4
GND oUTY
C420 0.1u
RX_PWR_SAVE
oCXo_ST_R
oCXo_ST_G
VoLUME_IN
PWR_ST_R
VOLTAGE PROTECTOR
D702 1SS355
AMP_SW
SCM_EN
AF_MUTE
EVOL_DATA
EVOL_CLK
H6
VSS2
D_D6 H5
DQ6
D_D4 H4
DQ4
D_D3 H3
DQ3
D_D1 H2
DQ1
FLASH MEMOR
H1
VSS1
D_A0 G6
DQ15/A-1
G5
DQ13
G4
VCC
G3
DQ11
G2
DQ9
D_RD G1
oE
R451
47k
3.96V 3.3V
VOLTAGE
DETECTOR
IC308
XC61CN2702N-G
L310
10u
R418
C466 0.1u
3.54V
R411 100k
4.91V
REFERENCE
4.7k C453
Q304 AMP
2SC4738F
0.01u
C467
R424
R440 22
680
0.01u
2.90V
R432 22
0
IC313
TC7WU04FK-F
R421 C462 R433
1
1A
2
10 0.01u 1M
3Y
3
2A
4
GND
TX_CoSDTo R431 0
IC309
AK4550VTP
TX_CoSDTi 9 8
SDTI SDTo
10 7
TX_CoLRCK
LRCK DEM1
11 6
MCLK DEM0
TX_CoSCLK 12 5
SCLK VDD
TX_CoPWAD 13 4
PWAD VSS
TX_CoPWDA 14 3
PWDA AINL
15 2
AoUTL
AINR
16 1
AoUTR
VCoM
CODEC
MOD_D_OUT
RX_AUDIO_D
MiC_D_IN
33MPU
R951
100k
BUFFER
IC728
IC314
I
8
VCC
7
1Y
6
3A
5
2Y