Tx-Rx Unit (X57-6990-10) (A/3, C/3); Schematic Diagram - Kenwood TK-8180 Service Manual

F
TX-RX UNIT (X57-6990-10) (B/3)
IGN
4.987V
5M
5M
SBC
TXC
PC
R412
RTCL/EEPCL
R415
RTDT/EEPDAT
R414
DMUTE
AM2
RST
XOUT
XIN
5M
R418
R419
PSW
R420
INT
R421
INTRA
R657
SHIFT/MODEL
DT
R422
SPSTB
R405
SOE
R406
AIO5
R411
AIO9
D423 R407
VOLTAGE
PROTECTION
RXD2
1SS388
TXD2
TXD1
SPSTB
RXD1INT
1SS388
RXD1EXT
1SS388
RXC
CK
MIC
ME
OPT6
G

SCHEMATIC DIAGRAM

HSDIN
HSDO
DSTB
LSDIN
DT
CK
4.989V
C412
0.1u
1
VREF
2
AVCC
3
SBC
4
RXC
5
TXC
6
PC
7
HSDO
8
STSW
470k
9
RTCL/EEPCL
470k
10
HSDIN
11
NC
12
RTDT/EEPDAT
10k
13
BYTE
14
R658 0
CNVSS
15
DMUTE
16
AM2
17
R424 1k
RST
18
R425 1k
XOUT
19
DGND
20
XIN
21
VCC1
22
47k
NMI
47k
23
PSW
330k
24
R432 1k
INT
47k
25
INTRA
4.7k
26
SHIFT/MODEL
27
BEEP
47k
28
SPSTB
470k
29
SOE
470k
R426
1k 30
AIO5
470k
R427 31
1k
AIO9
32
10k
DSTB
33
LSDO
D423
34
R428 0
RXD2
35
R429 470
TXD2
36
R430 470
TXD1
37
VCC1
R410
0 38
R431
RXD1
10k
D417
D418
D417,418
ISOLATOR
D
BEEP
R525 R511
1.5k 1.5k
D D
H
EMTON
AM1
MM2
TCLK/DTRDO
AFRTM
DGND
VCC2
MICROPROCESSOR
OPT6
IC404
30625MGP-169GP
PCK
CS0
RST2
I
TK-8180
D
102
101
100
T/R
T/R
99
R467 0
98
TCLK/DTRDO
CP407
97
1k
AFRTM
96
R482
IGN
47k
95
A0
A0
CP408
94
1k
A1
A1
93
A2 A2
CP409
92
1k
A3
A3
91
A4
A4
CP410
90
1k
A5
A5
89
A6 A6
CP411
88
1k
A7
A7
87 C423
86 R469
1u
D
A8
A8
85
1k
84
83
R465 47k
NC
82 D
R470 1k
PCK
81
PLE
PLE
CP412
80
1k
UL UL
79
A9
A9
CP413
78
1k
A11
A10
77
A11 A11
CP414
76
1k
A12 A12
75
A13 A13
CP415
74
1k
A14
A14
73
A15 A15
CP416
72
1k
A16 A16
71
A17 A17
CP417
70
1k
A18
A18
69
NC
68
R471 1k
CSO
67
R472 1k
RST2
66
NC
65
NC
X57-699 2/9
J
DSTB
DT
MM2
AM1
HSDIN
HSDO
EMTON
LSDIN
LSW
MM1
BEEP
LSDO
STSW
RXC
CK
SCSW
MIC
ME
OPT6
61