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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