Kenwood TK-7180 Service Manual page 62

F
DISPLAY UNIT (X54-3480-10)
LCD
B38-0888-05
R967
270
TH901 R971
-t
1k
S1R103J440H
100k
R958
4.7k
R957 R956
4.7k 4.7k
LCDRST
LCDCS
LCDCK
LCDDT
SW_8C
5C
RX
TX
RST
ME
PSW
SB
8C
Note : The components marked with a dot (
G
SCHEMATIC DIAGRAM
76
S76
77
S77
78
S78
79
CoM10/S79
80
COM[9] CoM9/S80
R969
81
COM[8] CoM8
0 82
COM[7] CoM7
83
COM[6] CoM6
84
COM[5] CoM5
C930
85
COM[4] CoM4
0.01u 86
COM[3] CoM3
C931
87
COM[2] CoM2
4.7u10
88
COM[1] CoM1
5.05V 89
VDD
7.43V 90
VLCD
R955
91
VLCD0
4.7k 92
VLCD1
93
VLCD2
94
VLCD3
95
VSS
96
oSC
97
RES
98
CE
99
CL
100
DI
•
) are parts of layer 1.
H I
50
S50
49
S49
48
S48
47
S47
46
S46
45
S45
44
S44
43
S43
42
S42
41
S41
40
S40
39
LCD DRIVER
S39
38
IC903
S38
LC75810T-8726
37
S37
36
S36
35
S35
34
S34
33
S33
32
S32
31
S31
30
S30
29
S29
28
S28
27
S27
26
S26
J
TK-7180
S[50]
S[49]
S[48]
S[47]
S[46]
S[45]
S[44]
S[43]
S[42]
S[41]
S[40]
S[39]
S[38]
S[37]
S[36]
S[35]
S[34]
S[33]
S[32]
S[31]
S[30]
S[29]
S[28]
S[27]
S[26]
CN902
GND 30
GND 29
RXD
28
TXD 27
5C
26
NC
25
SHIFT/MODEL 24
NC 23
GND
22
GND 21
GND
20
RST2
19
PSENS 18
GND
17
ME 16
MIC 15
GND
14
GND 13
PSW
12
NC
11
SB 10
SB 9
8C
8
GND 7
SPO
6
SPO
5
SPO 4
SPO
3
SPO 2
SPO 1
1
CN901
SP CONNECTOR
2
X54-348 2/2
1
2
3
4
5
6
7
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