156
RO0
157
RO1
158
RO2
159
RO3
2
RO4
3
RO5
4
RO6
5
RO7
98
HI1
99
HI2
101
HI3
102
HI4
103
HI5
104
HI6
105
HI7
97
HI0
33
R1A
34
R2A
35
R3A
36
R4A
37
R5A
38
R6A
39
R7A
40
R8A
17
R1B
18
R2B
19
R3B
21
R4B
22
R5B
23
R6B
24
R7B
25
R8B
126
T1A
127
T2A
128
T3A
129
T4A
131
T5A
132
T6A
133
T7A
134
T8A
146
T1B
147
T2B
148
T3B
149
T4B
151
T5B
152
T6B
153
T7B
154
T8B
106
P20
107
P21
108
P22
109
P23
111
P24
112
P25
113
P26
114
P27
137
SY
C1
138
SY
C2
139
SY
C3
141
SY
C4
142
SY
C5
143
SY
C6
144
SY
C7
145
SY
C8
8
P00
9
P01
11
P02
12
P03
74
DII
73
DIO
96
PSO
95
PSI
72
CMB
71
TXB
69
RXB
117
P30
118
P31
119
P32
120
P33
122
P34
123
P35
124
P36
125
P37N
13
P56
14
P57
15
P46
16
P47
66
HWEN1
67
HWEN2
42
DSTi
43
DST
o
44
CDSTi
45
CDST
o
65
FHD2
68
FHD
58
A0
57
A1
56
A2
55
A3
54
A4
53
A5
32
IOC
SN
49
A6
48
A7
47
A8
46
A9
26
RDN
27
WRN
31
RST
76
D0
77
D1
78
D2
79
D3
82
D4
83
D5
84
D6
85
D7
115
CS
2
136
GN
28
C8M
29
C4MN
64
CHS0N
63
CHS1N
62
CHS2N
61
CHS3N
59
CHS4N
135
CS
1
155
TOE
6
P06
7
P07
86
P10
87
P11
88
P12
89
P13
91
P14
92
P15
93
P16
94
P17
20
VDD
60
VDD
80
VDD
100
VDD
140
VDD
160
VDD
75
TXT
1
GND
10
GND
30
GND
41
GND
50
GND
70
GND
81
GND
90
GND
110
GND
121
GND
130
GND
150
GND
51
P04
52
P05
116
P37
R254
10K
R253
10K
R252
10K
R251
10K
R266
10K
C256
220P
EXRL
Y
IC213
26
FO
25
C4
7
A0
3
CDST
o
4
CDSTi
1
TX
CEN
2
RX
CEN
27
RST
5
WD
6
IRQ
28
VDD
14
VS
S
8
A1
9
A2
10
A3
15
D0
16
D1
17
D2
18
D3
19
D4
20
D5
21
D6
22
D7
13
R/W
11
CS
12
E
+5V
+5V
R264
1.5K
R263
1.5K
C259
0.1
+5V
+5V
C272
0.1
C258
0.1
C273
0.1
C257
0.1
+5V
IC217
13
X0
14
X1
15
X2
12
X3
1
X4
5
X5
2
X6
4
X7
3
X
6
INH1
11
A1
10
B1
9
C1
16
VDD
7
VEE
8
VS
S
C287
0.1
C288
0.1
-5V
+5V
C290
0.1
IC218
13
X0
14
X1
15
X2
12
X3
1
X4
5
X5
2
X6
4
X7
3
X
6
INH2
11
A2
10
B2
9
C2
16
VDD
7
VEE
8
VS
S
C289
0.1
+5V
C253
22000P
-5V
C291 0.1
+5V
R286
1.5K
C271
0.1
BELL[1-8]
HOOK[1-8]
DR1A
,DR2A
,DR3A
,DR4A
,DR5A
,DR6A
,DR7A
,DR8A
PD[1-8]
SY
C[1-8]
DR1B,DR2B,DR3B,DR4B,DR5B,DR6B,DR7B,DR8B
DT1A
,DT2A
,DT3A
,DT4A
,DT5A
,DT6A
,DT7A
,DT8A
DT1B,DT2B,DT3B,DT4B,DT5B,DT6B,DT7B,DT8B
Q252
+5V
+5V
+5V
+5V
+5V
R265
10K
-5V
MU/A
LCT[1-8]
HWSB
HWRB
Q221
D225
+15B
RLY200B
N/M
RLY200A
BR[1-2],OL[1-2]
J201
0
J202
0
J203
0
J204
0
BELL[1]
BELL[2]
BELL[3]
BELL[4]
BELL[5]
BELL[6]
BELL[7]
BELL[8]
HOOK[1]
HOOK[2]
HOOK[3]
HOOK[4]
HOOK[5]
HOOK[6]
HOOK[7]
HOOK[8]
DR1A
DR2A
DR4A
DR3A
DR6A
DR8A
DR5A
DR7A
DR1B
DR2B
DR3B
DR4B
DR5B
DR7B
DR8B
DR6B
DT1A
DT2A
DT3A
DT4A
DT8A
DT5A
DT7A
DT6A
DT4B
DT7B
DT1B
DT5B
DT3B
DT8B
DT6B
DT2B
PD[1]
PD[2]
PD[3]
PD[4]
PD[5]
PD[6]
PD[7]
PD[8]
SY
C[1]
SY
C[2]
SY
C[3]
SY
C[4]
SY
C[5]
SY
C[6]
SY
C[7]
SY
C[8]
LCT[1-8]
LCT[1]
LCT[2]
LCT[3]
LCT[4]
LCT[5]
LCT[6]
LCT[7]
LCT[8]
LCT[8]
LCT[7]
LCT[4]
LCT[6]
LCT[1]
LCT[5]
LCT[2]
LCT[3]
STD[2]
STD[1]
TOE
A2[1]
A2[2]
B[1]
B[2]
C[1]
C[2]
INH[1]
INH[2]
INH[1]
INH[2]
A2[1]
A2[2]
B[1]
B[2]
C[1]
C[2]
CS
A[1-6]
A[1]
A[2]
A[3]
A[4]
A[1]
A[2]
A[3]
A[4]
A[5]
A[6]
A[9-12]
D[0]
D[1]
D[2]
D[3]
D[4]
D[5]
D[6]
D[7]
D[0-7]
D[0]
D[1]
D[2]
D[3]
D[4]
D[5]
D[6]
D[7]
A[9]
A[10]
A[11]
A[12]
CHS1N
CHS2N
CHS3N
CHS4N
RSTN
IOC
SN
C8M
A2[1-2],B[1-2],C[1-2],INH[1-2]
STD[1-2],TOE
CHS0N
C4MN
C4MN
BR[1]
BR[2]
OL[2]
OL[1]
4
0
4
0
5
5
5
0
5
0
0
0
0
5
0
5
5
5
0
0
5
0
5
0
5
0
5
0
5
0
4
4
0
5
0
5
0
5
0
5
0
0
0
0
5
0
5
0
0
0
0
0
0
0
5
0
0
0
0
5
0
0
0
0
4
5
5
0
4
Summary of Contents for KX-TA1232
Page 8: ...4 CONNECTION 8 ...
Page 9: ...9 ...
Page 16: ...16 ...
Page 19: ... 2 SYSTEM DIAGRAM OF PCM CLOCK 19 ...
Page 20: ... 3 SYSTEM DIAGRAM OF ANALOG LINE 20 ...
Page 21: ... 4 SYSTEM DIAGRAM OF POWER SUPPLY 21 ...
Page 49: ...49 ...
Page 52: ...52 ...
Page 53: ...9 2 NO DIAL TONE CHECK EXTENSION BOARD 53 ...
Page 54: ...54 ...
Page 55: ...9 3 CANNOT DIAL CHECK EXTENSION BOARD 55 ...
Page 56: ...9 4 CANNOT ACCESS AN EXTENSION CHECK EXTENSION BOARD POWER SUPPLY UNIT AND CPU BOARD 56 ...
Page 57: ...9 5 CANNOT SEND A HOLD TONE CHECK CPU BOARD 9 5 1 HOLD TONE TO COL 57 ...
Page 61: ...9 10 EXTENSION IS NOT RINGING WHILE BEING CALLED FROM A CO LINE CHECK CO BOARD 61 ...
Page 62: ...10 DIAGNOSTIC METHOD 10 1 HOW TO GET INTO SELF DIAGNOSTIC MODE 62 ...
Page 63: ...10 2 TEST ITEMS 63 ...
Page 67: ...67 ...
Page 68: ...68 ...
Page 69: ...69 ...
Page 70: ...70 ...
Page 71: ...13 EXTENSION CABLE FOR SERVICING KX TA1232 71 ...
Page 72: ...72 ...
Page 73: ...14 CABINET AND ELECTRICAL PARTS LOCATION KX TA1232 73 ...
Page 74: ...74 ...
Page 75: ...75 ...
Page 76: ...14 1 ACTUAL SIZE OF SCREWS AND WASHER 76 ...
Page 77: ...77 ...
Page 78: ...15 ACCESSORIES AND PACKING MATERIALS KX TA1232 78 ...
Page 79: ...16 REPLACEMENT PARTS LIST KX TA1232 Note 79 ...
Page 130: ...18 CABINET AND ELECTRICAL PARTS LOCATION KX TA123260 130 ...
Page 131: ...19 ACCESSORIES AND PACKING MATERIALS KX TA123260 131 ...
Page 141: ...22 CABINET AND ELECTRICAL PARTS LOCATION KX TA123270 141 ...
Page 142: ...23 ACCESSORIES AND PACKING MATERIALS KX TA123270 142 ...
Page 164: ...25 3 HOW TO REMOVE THE MAIN BOARD Procedure 25 1 25 2 25 3 1 Remove the Main Board 164 ...
Page 165: ...26 CABINET AND ELECTRICAL PARTS LOCATION KX TA123280 165 ...
Page 166: ...27 ACCESSORIES AND PACKING MATERIALS KX TA123280 166 ...