Schematic Diagram; Switch Unit (X41-3682-70); Display Unit (X54-348X-Xx) - Kenwood TK-7180 Service Manual

A
TK-7180/7189
SWITCH UNIT (X41-3682-70) :TK-7189
1
2
A
FKEY[1]
B
FKEY[2]
C
3
FKEY[3]
S
FKEY[4]
POWER
4.97V
4
5
D902
02DZ18(X,Y)
VOLTAGE
PROTECTION
6
C910
4.61V
100p
5.02V
J901
8
DM
7
HK
6
MIC
5
ME
4
PTT
3
E
2
SB
1
BLC
13.3V
T:0.01V
R:5.02V
D931,932
SURGE
VOLTAGE
PROTECTION
PROTECTION
7
64
X41-368 1/1, X54-348 1/2
B

SCHEMATIC DIAGRAM

BLC SW
BLC SW
CONTROL
Q2
Q3
DTC114EE DTC114EE
CN1
E40-5719-05

DISPLAY UNIT (X54-348X-XX)

CN903
*
12KEY[12]
12KEY[11]
12KEY[10]
12KEY[9]
FKEY[5]
CP909
100*2
FKEY[6] 12KEY[8]
12KEY[7]
CP908
100*2
12KEY[6]
FKEY[7] FKEY[9] 12KEY[5]
CP907
100*2
12KEY[4]
12KEY[3]
FKEY[8] FKEY[10]
CP906
100*2
12KEY[2]
12KEY[1]
FKEY[10]
CP905
FKEY[9]
100*2
FKEY[8]
CP904
FKEY[7]
100*2
FKEY[6]
CP903
FKEY[5]
100*2
FKEY[4]
CP902
FKEY[3]
100*2
FKEY[2]
CP901
FKEY[1]
100*2
VOLTAGE
IC901
REGULATOR/5V
TA78L05F
5.05V
3
1
7.84V
IN OUT
COM
2
Q910
8C SW
12A02CH
7.84V 7.84V
7.10V
8C SW
CONTROL
Q911
DTC114EE
0.01V
Q901 Q902
DTC144EE DTC144EE
Q901,902
HOOK SW
C914
100p
C911
100p R901 R909
1k 47k
R903 R910
0 47k
R904
SURGE
1k
PROTECTION
5.03V
D905
DA204U
SP2
D901
D933
SURGE
PROTECTION
C
VOLTAGE
REGULATOR/8.4V
D1-6
Q1 8.4V
KEY BACKLIGHT
2SC2873(Y)
D7
02CZ9.1(X,Y)
VOLTAGE
PROTECTION
CP911
100*2
CP910
100*2
76
S17
77
S16
78
S15
79
S14
80
S13
81
S12
82
S11
83
S10
84
S9
85
S8
86
S7
87
MICROPROCESSOR
S6
88
S5
30302M88Z7GU
89
S4
90
S3
91
S2
92
S1
93
NC
94
AVSS
95
NC
96
VREF
97
AVCC
98
NC
99
NC
100
NC
5.04V
C922 C924
0.01u
C920
100p X901
L77-1956-05
CURRENT LIMITER
D903
MINISMDC020
D
50
NC
49
NC
48
NC
47
NC
46
NC
45
TP1
44
NC
43
NC
42
NC
41
NC
40
NC
39
NC
38
IC902
NC
37
NC
36
NC
35
NC
34
HK/RXD
33
NC
32
NC
31
DM
30
NC
29
PTT/TXD
28
TXD2
27
RXD2
26
NC
10p
TX
INDICATION
LED SW
T:4.80V Q904
DTC114EE
R:0.01V
TX
E
R944
0
L909
RX
L908
TX
LCDRST
LCDCS
LCDCK
LCDDT
5C
RST
SW_8C
ME
PSW
SB
8C
BLC1
DIMM
BUSY
INDICATION
LED SW
Q905 R:0.01V
DTC114EE
BUSY:4.83V
BUSY
D907
B30-2151-05
TX/BUSY
INDICATION
X54-348X-XX CN903
0-10 TK-7180 NO
2-71 TK-7189 E40-5719-05