Kenwood NX-700 Service Manual page 81

F
TX-RX UNIT (X57-738X-XX) (A/2)
50C
Q2
DTA114YE
PLL FIN
T/R SW
Q3
SSM3K15TE(F)
TEMP
SENSOR
IC2
LM73CIMKX-0
R918
4
I2CCK SMBCLK
5
0
ALERT
R919
6
I2CDT SMBDAT
0
X1
VC
GND oUTPUT
19.2MHz
TCXO MOD
33C
2
1
G
SCHEMATIC DIAGRAM
Q5
EMD9
R : 4.96V
T : 0.78V
D6
HVC131
PLL FIN
T/R SW
PLL FIN
T/R SW
R : 0V
T : 4.96V
0.76V
PLL FIN
T/R SW
C36
D5
1000p
HVC131
3.31V
3
3.17V
VDD
2
GND
1
ADDR
3.21V
BUFFER AMP
C195
(19.2MHz)
0.01u
VCC
Q15
2SK1215-E(E)
C190
0.01u 0V
0.64V
1.65V
R3
270k
IC1
LMC7101BIM5
1 OUTPUT 5
V-
2
V+
R4 C9
3 4
INPUT+ INPUT-
220k 10u
BUFFER AMP
1.65V
(TCXO MODULATION)
H
NX-700/700H
RX
L12
C49 C57
68n
470p 2p
TX
L15
C45 C56
470p 3p 82n
FC-R : 5.52V
RIPPLE FC-T : 4.91V
FILTER
14.34V 13.72V
Q1
2SC5383-T111
R89 R17
0 0
14.30V
2
33C
C15 0.01u
C16 0.01u
3.32V
13
LD/PS2
L31
14
VCCcp 2
15
CPout2
L1
16
R6 R10
/FVco
17
4.7u
4.7k 0
FVco
18
VCCcp2
L32
3.32V
R9
4.7k
2
1
I
50C
4.62V
D20
C66 C68
470p 1000p
HVC131
2.03V
PLL FIN
T/R SW
2SC5636
BUFFER AMP
(PLL FIN)
PLL FIN
T/R SW
0.77V
D19
C65
470p
HVC131
BYPASS
DIODE
D3
DA221
IC4
R38
LMC7101BIM5
10M
1 OUTPUT 5
V-
2
V+
R85
3 4
INPUT+ INPUT-
470k
BUFFER AMP
(VCO TUNE)
L35
L33
3.30V
IC3
PLL IC
4.98V
6
CPout1
5
VCCcp1
4
LD/PS1
3
/Fin
2
Fin
1
VCC
3.27V
C19 100p
C20 100p
C21 100p
X57-738 (A/2) 2/16
J
2.30V
Q6
CV
R22
47k
2
1
81