5
RO
M
R
O
M
RAM
RAM
RAM
RAM
B
UFFER
B
B
FIL
TER
FIL
TER
0
5
5
0
5
0
5
0
5
0
5
0
5
0
5
0
5
0
5
0
5
0
5
0
5
0
5
0
5
0
5
0
REAL TIME
CLOCK IC
5
0
5
0
5
0
4
1
2.3
5
5
5
5
4
4
0
0
0
5
0
5
0
3.5
0
5
0
5
0
3
0
5
0
5
4
0
3.6
3.0
3.5
0
0
3.6
0
3.5
0
5
5
0
0
0
0
-14
05
5
0
5
0
RESET IC
0
5
05
5
5
0
0
5
5
0
0
5
5
5
5
5
5
5
5
5 5
5
5
5
5
5
0
0
0
0
0
05
5
5
0
5
0
5
0
0
LO
W P
ASS
FIL
TER
CPU
0
0
0
RS232C
DRIVER/RECEIVER
0
0
5
5.6
0.6
0
5
5
0
5
J1
51
I/O1
50
I/O2
83
A2
82
A1
49
I/O3
48
I/O4
47
I/O5
46
I/O6
45
I/O7
43
I/O8
42
I/O9
41
I/O10
40
I/O11
39
I/O12
75
BERR
71
BR/IPL0
69
BG/IPL1
70
BGA
CK/IPL2
79
FC0
80
FC1
81
FC2
78
NOR/EMU
34
BCLK
68
TIN
10
VCC
35
VCC
61
VCC
90
VCC
14
GND
29
GND
44
GND
62
GND
84
GND
98
GND
52
I/O0
67
T
OUT1
66
T
OUT2
28
TXD0
32
RXD0
36
DTR0
38
CTS0
37
DSR0
33
RT
S
86
A4
85
A3
88
A6
87
A5
91
A8
89
A7
93
A10
92
A9
95
A12
94
A11
97
A14
96
A13
100
A16
99
A15
2
A18
1
A17
4
A20
3
A19
6
A22
5
A21
7
A23
25
D0
24
D1
23
D2
22
D3
21
D4
20
D5
19
D6
18
D7
17
D8
16
D9
15
D10
13
D11
12
D12
11
D13
9
D14
8
D15
60
UDS
63
LDS
64
R/W
59
AS
72
DT
A
C
K
58
INT0
57
INT1
56
INT2
65
CLK
74
RES
73
HAL
T
77
CS0
76
CS1
55
IA
CK0
54
IA
CK1
53
IA
CK2
27
TXD1
31
RXD1
26
TXD2
30
RXD2
+5B
R69
10K
+5B
R68
10K
+5B
R96
10K
+5B
CN5
19
17
15
13
CN6
17
20
19
CN5
9
R75
10K
+5B
R113
10K
R114
10K
+5B
C67
0.022
C72
0.022
C71
0.022
C70
0.022
+5B
R14
100K
R13
17.8K
R15
10K
+5B
C9
0.1
C8
0.1
R16
270K
IC14
5
6
7
R17
18K
IC14
1
2
3
4
8
R12
39K
C3
50V3.3
+15V
BELLS
-15V
IC15
2
3
IC15
4
5
6
R163
56
R164
56
R166
56
R165
56
R169
56
R170
56
R168
56
R167
56
R177
56
R173
56
R174
56
R176
56
R172
56
R175
56
R178
56
R171
56
R184
56
R186
56
R192
56
R181
56
R190
56
R193
56
R187
56
R183
56
R180
56
R188
56
R191
56
R182
56
R189
56
R185
56
R179
56
R197
56
R196
56
R194
56
R198
56
R195
56
R199
56
R200
56
CN6
18
15
13
14
11
12
9
7
8
3
5
6
4
1
CN7
19
20
17
15
18
13
11
16
14
CN8
8
7
6
4
5
2
3
1
CN7
1
2
3
4
5
6
8
7
CN5
3
4
6
2
1
+5B
CN5
7
12
11
Q5
+5B
R74
10K
-5V
C92
100P
C41
22000P
J18
No Mounted
J27
No Mounted
+5B
C45
22000P
+5R
J21
No Mounted
C40
22000P
C44
22000P
+5R
IC26
7
A3
6
A2
5
A1
4
A0
3
ALE
8
RD
10
WR
2
CS0
15
CS1
16
XT
17
XT
11
D3
12
D2
13
D1
14
D0
1
STD
.P
9
18
VDD
C46
22000P
+5R
X2
32.768KHZ
C80
20P
C39
20P
R62
22K
+5B
J12
No Mounted
Q7
R7
10K
+5B
+5B
R6
22K
Q6
R5
4.7K
D1
+15V
R4
470
R8
68K
+5V
IC13
520C
PST
R9
No Mounted
+5B
C55
0.022
J13
No Mounted
IC37
10
9
8
IC37
13
12
11
+5B
IC37
1
2
3
IC37
4
5
6
ASN
CN5
5
CN6
10
CN7
12
CN8
13
CN6
2
16
CN7
10
19
CN8
9
18
CN5
16
10
16
CN8
18
20
+5B
+5B
R204
10K
R205
10K
R206
10K
R207
10K
R208
10K
R209
10K
R210
10K
R211
10K
+5V
R216
10K
R214
10K
R215
10K
R217
10K
R219
10K
R218
10K
CN13
1
2
3
4
5
6
+5B
R223
22K
D3
D4
JMP2
+5R
+5B
+15V
-15V
D21
D20
JMP1
BA
T
C50
10V330
Q8
Q9
D13
IC15
14
71
D14
R83
1W
,150
R84
1.5K
D15
Q10
-5V
IC18
4
5
6
IC18
1
2
3
12
11
IC29
LS368
10
9
L23
1
2
3
R162
39
L22
1
2
3
R161
39
LS365
3
13
5
11
76
12
4
14
2
R156
47
R157
47
R158
47
R159
47
R160
47
LS368
IC34
13
11
9
76
10
12
14
R154
47
R153
47
R152
47
R155
47
LS368
IC33
3
5
7
13
11
91
0
12
14
6
4
2
R149
47
R151
47
R150
47
R148
47
R147
47
R146
47
AB
LS640
IC31
1
DIR
2
3
4
5
6
7
8
9
19
GN
11
12
13
14
15
16
17
18
R145
100
R144
100
R143
100
R141
100
R140
100
R142
100
R138
100
R139
100
IC29
LS368
6
7
IC32
4
5
R137
47
IC35
10
9
R136
47
L21
1
2
3
R134
39
LS365
IC32
9
3
13
7
11
12
6
14
2
10
R133
47
R132
47
R130
47
R131
47
R129
47
IC17
1
2
3
+5R
IC16
14
7
+5V
IC29
16
8
1
15
+5V
IC31
20
10
+5V
+5V
IC33
16
8
1
15
IC34
16
8
1
15
+5V
+5V
IC35
16
8
1
15
IC39
16
8
+5B
+5B
IC38
11
12
J
8
Q
10
PR
13
CLR
9
Q
IC15
9
10
8
CN11
1
2
3
4
5
6
IC15
12
13
11
FG
J11
No Mounted
CN12
1
2
3
4
5
6
FG
Z6
8
9
3
21
J2
J3
R79
10K
+5B
R78
10K
R77
10K
+5B
+5B
R76
10K
SW2
STDPN
INTMN
R94
10k
+5B
J26
No Mounted
+5B
J17
No Mounted
+5B
J24
No Mounted
(C42)
(C43)
+5B
+5B
J19
(IC23)
1
A14
26
A13
2
A12
23
A11
21
A10
24
A9
25
A8
3
A7
4
A6
5
A5
6
A4
7
A3
8
A2
9
A1
10
A0
22
OE
20
CE
19
I/D7
18
I/D6
17
I/D5
16
I/D4
15
I/D3
13
I/D2
12
I/D1
11
I/D0
28
VCC
14
GND
27
WE
(IC22)
1
A14
26
A13
2
A12
23
A11
21
A10
24
A9
25
A8
3
A7
4
A6
5
A5
6
A4
7
A3
8
A2
9
A1
10
A0
22
OE
20
CE
19
I/D7
18
I/D6
17
I/D5
16
I/D4
15
I/D3
13
I/D2
12
I/D1
11
I/D0
28
VCC
14
GND
27
WE
+5B
+5B
SW1
RESET
Z4
10K
4
6
8
9
1
7
5
3
2
+5V
Z5
10K
8
7
6
5
1
4
3
+5V
R212
10K
R213
10K
+5B
Z6
10K
5
6
4
7
1
+5V
+5B
R91
10K
+5B
R92
10K
+5B
+5B
R93
10K
CN1
2
10
9
6
7
20
3
INTMN
J14
No Mounted
5
4
R135
47
11
8
35
36
38
37
40
39
41
42
33
31
34
30
32
29
28
27
26
25
23
14
13
15
16
12
22
21
1
IC18
13
12
11
19
MCLK
Z5
10K
1
2
9
+5V
64
BELLS
24
57
62
R222
10K
+5B
63
61
18
17
59
+5V
STDPN
IC36
14
7
1
3
5
9
+5B
IC32
16
8
1
15
+5V
IC18
14
7
+5V
IC37
14
7
+5B
IC38
14
7
+5B
IC17
14
7
4
5
9
10
12
13
C64
0.022
+5R
R229
56
IC16
13
11
12
IC16
10
8
9
C63
50V1
C61
50V1
C62
50V1
C59
50V1
C1
0.47F
C60
50V1
C2
25V4.7
IC16
46
5
IC16
13
2
R10
220K
+5V
+5B
R61
10K
R228
10K
+5B
IC20
31
A18
1
A19
30
A17
2
A16
3
A15
29
A14
28
A13
4
A12
25
A11
23
A10
26
A9
27
A8
5
A7
6
A6
7
A5
8
A4
9
A3
10
A2
11
A1
12
A0
24
OE
22
CE
21
D7
20
D6
19
D5
18
D4
17
D3
15
D2
14
D1
13
D0
32
VCC
16
GND
31
A18
1
A19
30
A17
2
A16
3
A15
29
A14
28
A13
4
A12
25
A11
23
A10
26
A9
27
A8
5
A7
6
A6
7
A5
8
A4
9
A3
10
A2
11
A1
12
A0
24
OE
22
CE
21
D7
20
D6
19
D5
18
D4
17
D3
15
D2
14
D1
13
D0
32
VCC
16
GND
+5B
+5B
IC25
2
A16
31
A15
3
A14
28
A13
4
A12
25
A11
23
A10
26
A9
27
A8
5
A7
6
A6
7
A5
8
A4
9
A3
10
A2
11
A1
12
A0
24
OE
22
CE
I/D7
I/D6
I/D5
I/D4
I/D3
I/D2
I/D1
I/D0
32
VCC
16
GND
30
CE
29
WE
1
A17
IC24
2
A16
31
A15
3
A14
28
A13
4
A12
25
A11
23
A10
26
A9
27
A8
5
A7
6
A6
7
A5
8
A4
9
A3
10
A2
11
A1
12
A0
24
OE
22
CE
21
I/D7
20
I/D6
19
I/D5
18
I/D4
17
I/D3
15
I/D2
14
I/D1
13
I/D0
32
VCC
16
GND
30
CE
29
WE
1
A17
J16
No Mounted
J15
No Mounted
J23
No Mounted
J22
No Mounted
C14
68P
R11
680
C99
0.022
C97
0.022
C85
0.022
C84
0.022
C98
0.022
C102
N/M
L30
J100
FG
PLLPRSN
SELCK
C66
10V100
ASN
ECK
C8M
J20
J25
+5B
A[1]
A[2]
A[3]
A[4]
A[5]
A[6]
A[7]
A[8]
A[9]
A[10]
A[11]
A[12]
A[13]
A[14]
A[15]
A[16]
A[17]
A[18]
A[19]
A[20]
A[21]
A[22]
A[23]
A[1]
A[2]
A[3]
A[4]
A[5]
A[6]
A[7]
A[8]
A[9]
A[10]
A[11]
A[12]
A[13]
A[14]
A[15]
A[16]
A[17]
A[18]
A[19]
A[21]
A[22]
A[23]
D[0]
D[1]
D[2]
D[3]
D[4]
D[5]
D[6]
D[7]
D[8]
D[9]
D[10]
D[11]
D[12]
D[13]
D[14]
D[15]
D[0]
D[1]
D[2]
D[3]
D[4]
D[5]
D[6]
D[7]
D[8]
D[9]
D[10]
D[11]
D[12]
D[13]
D[14]
D[15]
MOHMUTE[1]
LWRN
A[1]
A[2]
A[3]
A[4]
A[5]
A[6]
A[7]
A[8]
A[9]
A[10]
A[11]
A[12]
A[13]
A[14]
A[15]
A[16]
A[17]
A[18]
D[0]
D[1]
D[2]
D[3]
D[4]
D[5]
D[6]
D[7]
D[8]
D[9]
D[10]
D[11]
D[12]
D[13]
D[14]
D[15]
D[0]
D[1]
D[2]
D[3]
A[1]
A[2]
A[3]
A[4]
A[6]
A[8]
A[5]
A[12]
A[10]
A[15]
A[1]
A[17]
A[16]
A[14]
A[9]
A[2]
A[7]
A[13]
A[11]
A[3]
A[4]
D[15]
D[9]
D[14]
D[8]
D[10]
D[11]
D[13]
D[12]
A[11]
A[8]
A[14]
A[2]
A[15]
A[7]
A[5]
A[3]
A[16]
A[17]
A[6]
A[13]
A[9]
A[12]
A[4]
A[10]
A[1]
IORN
IO
WN
CSR
TCN
HAL
TN
PD15N
IORN
IO
WN
ECK
IR
WN
IOWN
D[0]
D[1]
D[2]
D[3]
D[4]
D[5]
D[6]
D[7]
A[14]
A[13]
A[15]
A[16]
A[18]
A[17]
FHNR
C2M
C4M
CHS[0]
CHS[1]
CHS[2]
CHS[3]
CHS[4]
A[9]
A[10]
A[11]
A[12]
A[1]
A[2]
A[3]
A[4]
A[5]
A[6]
D[0]
D[1]
D[2]
D[3]
D[4]
D[5]
D[6]
D[7]
IOCSN
IR
WN
SRSTN
IOCSN
HAL
TN
IO
WN
IR
WN
IORN
UWRN
IORN
CPUCK
TXD
RXD
ER
DR
RD
SD
MOHMUTE[0]
PDPG[1]
PDPG[0]
MU/A
R/WN
R/WN
LDSN
UDSN
IORN
D[12]
UWRN
A[3]
A[4]
A[11]
IORN
A[12]
D[13]
D[9]
D[15]
LWRN
A[7]
A[7]
A[15]
A[10]
A[6]
A[3]
A[5]
A[13]
A[1]
A[10]
A[12]
A[1]
A[15]
A[9]
A[4]
A[2]
A[13]
A[2]
D[11]
A[9]
D[14]
A[14]
A[8]
D[10]
A[11]
A[6]
D[8]
A[5]
A[8]
A[14]
A[1-23],D[0-15],R/WN
CSROMN
21
20
19
18
17
15
14
13
D[0]
D[1]
D[2]
D[3]
D[4]
D[5]
D[6]
D[7]
D[0]
D[1]
D[2]
D[3]
D[4]
D[5]
D[6]
D[7]
CSRAM2N
CSRAM[1]
D[8]
D[9]
D[10]
D[11]
D[12]
D[13]
D[14]
D[15]
A[1]
A[2]
A[3]
A[4]
A[5]
A[6]
A[7]
A[8]
A[9]
A[10]
A[11]
A[12]
A[21]
A[22]
A[23]
CPUCKN
TXD
RXD
D0N
D1N
D3N
D2N
D5N
D4N
D6N
D7N
A1N
A5N
A4N
A2N
A3N
A6N
A12N
A10N
A11N
A9N
CH[4]
CH[2]
CH[3]
CH[1]
CH[0]
A[1]
A[2]
A[3]
A[4]
A[5]
A[6]
A[7]
A[8]
A[9]
A[10]
A[11]
A[12]
A[13]
A[14]
A[15]
A[16]
A[17]
A[18]
A[20]
PO
WRSTN
A[19]
A[20]
A[19]
A[19]
A[20]
A[20]
A[18]
A[18]
IORN
DT
AN
PO
WRSTN
MCLK
ASN
ECK
SRSTN
PDOHCA
+5R
RESET
Not Mounted
No Mounted
No Mounted
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 ...