Tx-Rx Unit (X57-7680-Xx) - Kenwood TK-8302 Service Manual

A B
TK-8302/8302H
1
TX-RX UNIT (X57-7680-XX) -15: TK-8302H K2 -23: TK-8302 M2
Component side view (J79-0247-09)
2
3
J701
EXT.SP
4
C865
C863
5
C840
S
D Q720
G
6
C835
O
G
IC704
7 I
C831
8
9
10
11
C887
12
13
38
14
C D
PC BOARD
11
6
1
C957
C850
C846
8C
R839 R836
+
C817
R835
C816 8R
R841
R785
8T
R784
+
C819 R782
R783
C821
R840
Q715
10 S
R843
C832
D
G
R838
C882
C820
C955
R885
C883
Q723
S
R884
D
G
1
Q721
+
4
C797
R793
R861
R791
R815
C795
AF Out
1
C890
Mod2
CN724
E F
J700
D-SUB
15
10
5
C866
C867
C869
+
+
Q717
S
5C
D
G
ETXD
ECLK
R979
R827
RXD
R825
BSFT R818
R951
TXD
C814
ERXD
R820
8 EPM R980
EBSY
R875
50
51
5
R831 R891
R832 R829
C891
75
76
R798
R794
R795
C792
R787
C793
R790
R874
RSSI
R998
R857
G H
1
C853
C851
R933
R934
C841
Q728
C838
3M 3C
R930
R932
G Q718
RS232C RXD
D
R928
R929 D708
S D705
D707
D710
D709
C729
C725
C732
C731 C727
FNC1 FNC2 FNC3 FNC4 FNC5 FNC6 FNC7 FNC8
CP702
CP706
R821
CP700
C854 R701
CP704
C788
C780
26 R703
R774
R812
25 C701
Q722
R811
R807
Q710
C919
R959
R960
Q731
R806
R863
C808
R859
C807 Assist
Voltage
C19
LV
XOUT
CNVSS
1
IC709
RESET
100
1 4
R854
R952
R853
2 3
Mod1
UL
5M
SQIN
C915
POWER
C511
R977
R504
R855
R858
I J
2
DETO
IGN
LV
D703
D701
D700
C723
C721
C719
CN702
1 2
GND 9C
FNC5 FNC6
FNC2 FNC7
FNC8 FNC3
FNC1 NC
5C TXAFO
DATAI DETO
NC ALTI
TXAFI RXAFO
19 RXAFI FNC4 20
FMIC Out
R505 C515
C512