Kenwood TK-7302 Service Manual page 46

U
TK-7302/7302 V /7302H/7302H
( )
TX-RX UNIT (X57-76 0-XX)
AF
C821
1u
R838
4.7k
AMPSW
C882
1u
R884
4.7k
Q713
11
9R SWITCH
SPMUTE
12
B
FB
SB
12 11
9C
CN725
PA
9R
9R
R :
9.02V
Q711
9R CONTROL
SWITCH
9RC
Q711
RT1N441U
CN727
9T
9T
T : 8.95V
Q712
RT1N441U
R835
9TC
10k
11
5C
SBC
SBC
12
5CC
Q712
9
9T CONTROL SWITCH
3.3C
3.3M
3.3M
5M
INT
RST
3 13
D700,701,703,
13
705,707-710
SURGE
8
PROTECTION
9
13
3
9
8
12
IGN
MIC
8
ME
46
X57-76 5/6
V
V
( )
Q715,723
SP MUTE SWITCH
R842 R843
82k 2.2k
R : 3.28V
Q715
SSM3K05FU
C832 C954 C955
0.22u 1000p 1000p
R886 C883
82k 0.22u
R : 3.28V
Q723
Q721
SSM3K05FU
AF AMP
SWITCH
IC704
VOLTAGE REGULATOR (9V)
12
IC704
TA4809BF
CN726
Q713
9C
2SB1694
2 1
oUT IN
GND
3
9.04V
SB
Q714
9T SWITCH
Q714
4.97V Q717
2SB1694
5C CONTROL SWITCH
5C
Q717
CN728
SSM3J05FU-F
3.24V
3.3C
CN729 Q718
SSM3J05FU-F
3.3C CONTROL SWITCH
3
13
CN731
D700
DA221
D701
DA221
D703
DA221
D705
DA221
D707
DA221
D708
DA221
D709
DA221
D710
DA221
RS232C RxD
CN748
R930
22k
12
13
W
SCHEMATIC DIAGRAM
Q721
RT1N441U
5C
12
B
FB
Q720
SB
SB SWITCH
C840
13.60V 13.60V
F700
1000p Q720
4A
2SJ645
R845
Q719
Q719
1k
SB CONTROL
KTC4075E(Y,GR)
SWITCH
IC707
IC707
VOLTAGE REGULATOR
TA7805FQ
5.02V
(5V)
5M
2 1
oUT IN
GND
3
5M
3.29V
CN730
3.3M
1
2
3
IC706
XC6221B332NR
VOLTAGE
REGULATOR (3.3V)
5M
3
13
CN739
CN738
CN737
CN736
CN735
CN734
CN733
CN732
Q728
RS-232C
2SC4116(Y)F
RXD CONTROL
D718
VOLTAGE PROTECTION
12
13
8
X
IC705
LA4600
AF AMP
J701
EXT
SP
D717
VOLTAGE
PROTECTION
IC709
VOLTAGE
IC708
DTECTION
VOLTAGE (MCU RESET)
DTECTION (INT)
5M
IC708
BD4740G
IC709
5 XC6120N402N1
NC VCC
1
NC VIN
SUB
4
GND VoUT
2
VSS VoUT
FNC4
RXAFI
RXAFO
TXAFI
BEEPOUT(L)
BEEPOUT(H)
DISC
SIGOUT(H)
TXAFO
5C VCC
SIGOUT(L)
FNC1
RESET
FNC8
FNC7
R703
FNC2
FNC6
0
R701 FNC5
0 R940
GND
0
5M
5C
SB
Y
13.6V
4
3
CN702
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
9C
2
1
12
IGN
13
MIC
8
ME