Kenwood TK-8180 - Manual (Page 61)

58
TK-8180
SCHEMATIC DIAGRAM
7
6
5
4
3
2
1
A B C D E
X54-348 1/2
C906
0.01u
C917 0.1u C918 10u10
C912
1000p
C909
100p
D901 02DZ18(X,Y)
R904
1k
R903
470
C904
100p
J901
8
7
6
5
7
3
2
1
C916 0.1u
C915
1000p
R901
1k
D906
DA204U
D904
DA204U
IC901
TA78L05F
2
COM
3
IN
1
OUT
C927 1000p
R943
100
R939 4.7k
D905
DA204U
R905 4.7k
R909 47k
R911 47k R907 33k
Q913
DTC114EE
Q906
DTC114EE
C928
1000p
Q901
DTC144EE Q902
DTC144EE
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
C925 10p
R919
1k
R936
10k
L903
R926
47k
L904
R932
1k
R933
1k
R934
1k
R935
1k
R927
1k
R928
1k
R914
470k
R915
470k
R944
0
Q905
DTC114EE
C921 1000p
R918 270
C926 1000p
R917 470
Q904
DTC114EE
D926 D920 D917
D913
D912
D925
D911
D916 D919
D923
D915
D922 D910
D921
R950 100 R949 100 R948 100 R947 100
D909 D918
D914
L902
1u
C910
100p
C911
100p
C914
100p
C913 1000p
L901 1u
R929
1k
R930
1k
R931
1k
R916
470k
CP901
100*2
CP902
100*2
CP903
100*2
CP904
100*2
CP905
100*2
CP906
100*2
CP907
100*2
CP908
100*2
CP909
100*2
CP910 100*2 CP911 100*2
D924
R953 820
D927
D928
R954 820
D929
D930
12A02CH
Q910
Q911
DTC114EE
R962 10k
R963 10k
C936
0.1u
R970 10k
R910 47k
D907
B30-2151-05
R913
470k
R920
0
R942
47
12A02CH
Q909
R945 10k
R952 390 R951 390
R925
470
C938
1000p
R941
1k
R940
100 L909
L908
C924
10p
C922
0.01u
C920
100p
FKEY[1]
FKEY[2]
FKEY[3]
FKEY[4]
FKEY[6]
FKEY[5]
FKEY[7]
FKEY[8] FKEY[10]
FKEY[9]
FKEY[10]
FKEY[9]
FKEY[8]
FKEY[7]
FKEY[6]
FKEY[5]
FKEY[4]
FKEY[3]
FKEY[2]
FKEY[1]
HK
E
MIC
PTT
DM
SB
BLC
ME
SP2
TX BUSY
LCD Key
DISPLAY UNIT (X54-3480-10)
VOLTAGE
REGULATOR/5V
TX
INDICATION
LED SW BUSY
INDICATION
LED SW
DIMMER SW
CONTROL
BACKLIGHT
CONTROL
BACKLIGHT CONTROL SW
8C SW
8C SW
CONTROL
HOOK SW
Q901,902
VOLTAGE
PROTECTION
VOLTAGE
PROTECTION
TX/BUSY
INDICATION
POWER
SW_8C
LCDCS
LCDRST
LCDDT
LCDCK
5C
SB
RX
TX
8C
PSW
ME
RST
X901
L77-1956-05
SURGE PROTECTION
D904-906
LCD BACKLIGHT
D909-920
KEY BACKLIGHT
D921-930
2SC2873(Y)
Q907
DIMMER SW
NC
RXD2
TXD2
PTT/TXD
NC
DM
NC
NC
HK/RXD
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
TP1
NC
NC
NC
NC
NC
NC NC NC NC NC NC NC NC NC
VCC
NC VSS NC NC NC NC NC NC NC NC S22 S21 S20 S19 S18
S17
S16
S15
S14
S13
S12
S11
S10
S9
S8
S7
S6
S5
S4
S3
S2
S1
NC
AVSS
NC
VREF
AVCC
NC
NC
NC
D903
MINISMDC020
CURRENT
LIMITER
B30-2281-05 B30-2281-05 B30-2282-05 B30-2281-05 B30-2282-05 B30-2281-05 B30-2282-05 B30-2282-05
D902
02DZ18(X,Y)
NC NC NC NC SHIFT BYTE CNVSS NC NC RST Xout VSS Xin VCC NMI BLC2 BLC1 DIMM LEDG LEDR NC LCDCK LCDDT LCDCS LCDRST
1 2 3 4 5 6 7 8 9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
99
100
IC902
30302M8-8Z7GP
MICROPROCESSOR
4.97V
5.05V
7.84V
7.84V
7.10V
7.84V
5.02V
4.61V
13.3V
T:0.01V
R:5.02V 5.03V
T:4.80V
R:0.01V
R:0.01V
BUSY:4.83V
0V
0.66V
4.62V
7.10V
7.84V
7.79V
5.04V
0.01V