Kenwood TK-7302 Service Manual page 45

P
SCHEMATIC DIAGRAM
TX-RX UNIT (X57-76 0-XX)
AF
1
RLED
6 GLED
8
BLED
CP705 1k
6
KMO1
KMO2
KMO3
KMI1
CP701 1k
KMI2
KMI3
M1MUTE
M2MUTE
4 4
R790
12k
8
2 TEMP2
5 TEMP1
R787
15k
BATT
DETECT
R792
SB
130k
R796 1k
RSSI
R797 1k
SQIN
R860
0
R786
CV
1k
5.01V
L702
NARROW
WIDE
R952
2
LSD0
HSDO
8
8
5M
XIN
3
SBC
ASTSW
BEEP
2
7
MIC
2
Q
8
6
76
BLED
77
KMO1
78
KMO2
R895 1k
79
KMO3
R894 1k
80
KMI1
81
KMI2
82
KMI3
83
UL
84
AF MUTE
85
MIC1MUTE
86
MIC2MUTE
87
HSDI HSDI
88
LSDI LSDI
R794
1k
89
TEMP2
R795
90
TEMP1
1k
R791
91
BATT
1k
92
RSSI
93
SQIN
R798
94
AVSS
0
95
CV
96
VREF
97
AVCC
98
NARROW
99
WIDE
100
HORN
0
R803
10k
5M
CN713
19.2MHz
SBC
R782
1k
IGNITION SENSE
CONTROL SWITCH
7
R
TK-7302/7302
1
8
10
3.29V
C809
0.1u
C810
1000p
VCC2=3.3V
IC702
F364AEDFBKCUA
MCU
VCC1=5.0V
5.01V
8
5M
3
9
D715
VOLTAGE
PROTECTION
Q710,722
OVER
VOLTAGE
DETECT
SWITCH
Q707
KRC414RTK
Q722
R785
KTC4075E(Y,GR)
1M
Q710
RT1N441U
7
S
V /7302H/7302H
( )
1
3.3M
10
11
50
9RC 9RC
49
SP MUTE
48
CSN1 CSN1
47
1
SCLK SCLK1
46
RDATA1
RDATA
45
CDATA CDATA1 7
R820
44
ECE
R951 47K
43
PA
0
42
PLCK PLCK
41
PLDT PLDT
40
PLLE PLLE
CN716 R935
47k
39 EPM
EPM
38
LPOSW
CN750
37
R817
BSFT
36 0
PTT PTT/TXD
R823
R818 1k
35
HOOK HOOK/RXD
0
34
R826
CN718
RXD
RXD
22k
CN720
R824 R827
TXD
1.5k 47k
33
TXD
R950
CN717
47k
32 EBSY
EBSY
R999
CN719
47k
31 ECLK
ECLK
CN721
ERXD
30
ERXD
CN722
ETXD
29
ETXD
28
FNC1
27
FNC2
26
FNC3
R928
4.7k
R929
4.7k
13
5M
10
R829
EEPWP
0
IC703
EX24064ASAS0A
3.29V
10
1 8
A0 VCC
2 7
EEPROM A1 WP
3 6
A2 SCL
R833
4 5
VSS SDA
10k
R891
0 R831 0
EEPDI
R892 R832 0 R834
EEPCK
0 10k
C814
1000p
7
X57-76 4/6
T
V
( )
AF
AMPSW
10
11
SPMUTE
PA
10
7
8
3.3M
5M
8
13
8
3
10
9
7
IGN
MIC
ME
45