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LCD CONTRAST
LCD DRIVER
LCD DRIVER
LCD
CONTROL
4BIT
MICROCOMPUTER
21
KEY SWITCH
+5V
SW53
R205
2.2K
SW52
R202
2.2K
SW50
+5V
R203
2.2K
R206
100K
D201
R204
2.2K
C200
0.1
Y1
80
Y2
79
Y41
40
Y42
39
Y43
38
Y44
37
Y45
36
Y79
2
Y80
1
V4
85
V3
84
V2
83
V1
82
VEE
81
M
91
VCC
96
L/R
89
GND
86
CLKLA
87
CLKSR
90
M
94
Y3
78
Y4
77
Y5
76
Y6
75
Y7
74
Y8
73
Y9
72
Y10
71
Y11
70
Y12
69
Y13
68
Y14
67
Y15
66
Y16
65
Y17
64
Y18
63
Y19
62
Y20
61
Y21
60
Y22
59
Y23
58
Y24
57
Y25
56
Y26
55
Y27
54
Y28
53
Y29
52
Y30
51
Y31
50
Y32
49
Y33
48
Y34
47
Y35
46
Y36
45
Y37
44
Y38
43
Y39
42
Y40
41
Y46
35
Y47
34
Y48
33
Y49
32
Y50
31
Y51
30
Y52
29
Y53
28
Y54
27
Y55
26
Y56
25
Y57
24
Y58
23
Y59
22
Y60
21
Y61
20
Y62
19
Y63
18
Y64
17
Y65
16
Y66
15
Y67
14
Y68
13
Y69
12
Y70
11
Y71
10
Y72
9
Y73
8
Y74
7
Y75
6
Y76
5
Y77
4
Y78
3
SW51
R201
2.2K
25
11
22
14
9
23
16
17
3
24
26
6
1
27
10
+5V
4
7
CN201
2
15
8
COM1
47
23
GND
33
VCC
SEG40
63
M
34
CL2
32
CL1
31
V1
26
V2
27
V3
28
V4
29
V5
30
M
35
SEG39
64
SEG26
77
SEG25
78
SEG24
79
COM2
48
COM3
49
COM4
50
COM5
51
COM6
52
COM7
53
COM8
54
COM9
55
COM10
56
COM11
57
COM12
58
COM13
59
COM14
60
COM15
61
COM16
62
D7
46
D6
45
D5
44
D4
43
D3
42
D2
41
D1
40
D0
39
RS
36
R/W
37
E
38
OSC1
24
OSC2
25
SEG29
74
SEG28
75
SEG27
76
SEG33
70
SEG32
71
SEG31
72
SEG36
67
SEG35
68
SEG34
69
SEG38
65
SEG37
66
SEG23
80
SEG22
1
SEG10
13
SEG9
14
SEG8
15
SEG13
10
SEG12
11
SEG11
12
SEG16
7
SEG15
8
SEG14
9
SEG19
4
SEG18
5
SEG17
6
SEG21
2
SEG20
3
SEG3
20
SEG2
21
SEG1
22
SEG5
18
SEG4
19
SEG7
16
SEG6
17
SEG30
73
28
29
31
30
32
13
12
18
19
20
21
36
35
5
34
33
31
SW2
D8
+5V(V1)
SW26
SW47
10
34
R99
22K
SW9
R106
150K
SW34
R110
22K
30
C115
0.1
9
SW3
D7
SW29
SW41
35
18
R97
22K
SW21
SW36
Q27
4
64
RD1
63
RD0
62
RB21
61
RB11
60
RB01
59
VCC
58
SEL
57
RA1
56
RA0
55
R93
54
R92
53
R91
52
R90
51
R83
50
R82
49
R81
48
R80
47
R73
46
R72
45
R71
44
R70
43
R63
42
R62
41
R61
40
R60
39
R43
38
R42
37
R41
36
R40
35
R31
34
R32
33
R33
17 D11
18 D12
19 D13
20 R0
21
R01
22
R02
23
R03
24
R10
25
R11
26
R12
27
R13
28
R20
29
R21
30
R22
31
R23
32
R30
1
RE0
2
TEST
3
OSC1
4
OSC2
5
RESET
6
X1
7
X2
8
GND
9
D0
10
D1
11
D2
12
D3
13
D4
14
D5
15
D9
16
D10
36
SW40
C74 0.1
SW64
D6
-5V
SW31
R114
1K
SW42
14
3
R98
22K
R109
12K
SW18
SW33
5
Q30
15
SW24
50V10
µ
C88
SW11
SW30
SW44
26
R92
1M
Ω
D3
SW23
Q29
SW39
21
R93
22K
27
SW32
R105
4.7K
SW12
SW25
SW49
28
20
SW7
D4
X3
4MHZ
SW20
SW37
29
R108
56K
R94
22K
8
SW8
R102
4.7K
SW10
SW27
D13
19
+5V(V1)
23
SW6
D5
SW17
SW43
7
+5V(V1)
R107
100K
R95
22K
1
SW48
R104
4.7K
SW14
SW28
24
16
17
SW5
D10
SW19
SW46
6
R131 33
R103
100K
R96
22K
32
SW16
SW15
R101
4.7K
SW35
12
11
CN2
2
SW4
D9
SW22
+5V(V1)
SW45
25
R132 33
Q28
13
22
R100
22K
SW13
+5V(V1)
SW38
33
D20
D17
D18
D16
D19
D15
D14
R139
10K
R140
10K
SW1
1
2
4
3
R207
470
R208
1K
D202
+5V
R[31]
R[60]
R[30]
R[61]
R[62]
R[63]
D[2]
D[2],R[30-31],R[60-63]
R[60]
R[61]
R[62]
R[63]
R[30]
R[31]
D[2]
R[33]
R[33]
R[32]
RB[1],RB[11],RB[21],RD[0],R[90-93]
R[31]
D[5],D[9-12],R[1-3]
R[30]
INT[2]
RB[1]
R[63]
R[62]
D[2]
RB[11]
R[61]
R[70]
RR[70-73],RR[80-83]
R[60]
RR[72]
RB[21]
RR[71]
RR[70]
RD[0]
RR[73]
R[90]
R[93]
RD[0]
RR[83]
RD[0]
R[91]
RR[82]
RR[81]
RR[80]
R[23]
RR[83]
RR[73]
D[11]
R[22]
RR[82]
RR[72]
D[2],R[30-33],R[60-63],R[70-73]
D[12]
R[21]
RR[81]
RR[71]
R[1]
R[20]
RR[80]
RB[21]
RB[1]
RR[70]
R[2]
R[13]
R[3]
RD[1]
R[12]
R[71]
R[90]
IOR
INT[1]
IOW
R[63]
R[72]
R[91]
R[62]
D[2]
R[61]
R[92]
R[73]
R[73]
R[60]
RB[11]
R[72]
R[93]
R[31]
R[92]
R[71]
R[32]
R[70]
R[30]
INT[1-2],IOR,IOW,R[12-13],R[20-23]
RR[83]
RR[82]
RR[81]
RR[80]
RR[73]
RR[72]
RR[71]
RR[70]
D[10]
D[9]
D[5]
MENU1
MENU3
MENU2
SHIFT
(V1)
PSUP1178Z
CO22
CO19
CO23
CO18
CONF
REDIAL
TRANS
FWD
PROG
CO7
INT
CO6
PAUSE
CO5
CO1
1
CO2
CO4
5
CO3
6
CO15
3
CO9
4
CO12
SP
CO13
CO11
CO10
CO14
CO21
CO20
CO17
2
7
8
#
9
*
0
AUTO
TELTYPE0
TELTYPE1
MUTE
CO8
CO16
CO24
FLASH
HOLD
MW
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
Содержание KX-T7453
Страница 7: ...5 IC DATA 5 1 IC1 7 ...
Страница 10: ...10 ...
Страница 15: ...15 ...
Страница 21: ...The reset signal is negledted 21 ...
Страница 26: ...8 2 THE LCD DOES NOT OPERATE 26 ...
Страница 28: ...8 5 SPEAKER PHONE TROUBLE 8 6 TONE DIAL TROUBLE 8 7 HANDSET TROUBLE 28 ...
Страница 29: ...9 TERMINAL GUIDE OF ICS TRANSISTORS AND DIODES 29 ...
Страница 33: ...13 ACCESSORIES AND PACKING MATERIALS 33 ...
Страница 34: ...14 REPLACEMENT PARTS LIST Note 1 The marking RTL indicates that the Retention Time is limited for this item 34 ...
Страница 39: ... 39 ...
Страница 41: ...41 ...
Страница 43: ...43 ...
Страница 48: ...1 5 2 6 3 7 4 8 ...
Страница 49: ...9 13 10 14 11 15 12 16 ...
Страница 50: ...17 21 18 22 19 23 20 24 ...
Страница 51: ...33 34 35 36 25 32 ...
Страница 57: ...SW301 CN301 1 2 3 ...