IC2
103
A1
104
A2
87
HW
OUT
119
HWIN
105
A3
106
A4
107
A16
108
A17
109
A18
110
A21
72
A22
71
A23
70
D0
69
D1
68
D2
67
D3
65
D4
64
D5
63
D6
62
D7
97
UDSN
98
LDSN
99
RW
N
100
ASN
61
DT
A
CKN
59
CPUCK
57
RSTN
56
HAL
TN
15
CSR
TCN
16
CSRAM1
25
CSRAM2N
51
UWRN
50
L
WRN
17
IORN
19
IO
WN
55
ECK
53
IR
WN
31
116
EXTCK
137
C8K
130
CTRLO
AD
18
VDD
54
VDD
90
VDD
126
VDD
9
GND
30
GND
45
GND
66
GND
81
GND
102
GND
117
GND
138
GND
101
RSTIN
142
PD15N
13
N.C
.
24
N.C
.
49
N.C
.
60
N.C
.
85
N.C
.
96
N.C
.
121
N.C
.
132
N.C
.
58
CSTSWN
95
FH1N
47
C2M
48
C4MN
46
CHS0
44
CHS1
43
CHS2
42
CHS3
41
CHS4
93
CP28
92
CP31
91
CP27
89
CP29
88
CP30
111
PCM00
112
PCM01
113
PCM02
114
PCM03
122
PCM04
123
PCM05
124
PCM06
125
PCM07
5
PCM08
6
PCM09
7
PCM10
8
PCM11
10
PCM12
11
PCM13
12
PCM14
14
PCM15
127
PCM16
120
CEDR
OMN
128
RCM17
131
PCMIN0
133
PCMIN1
134
PCMIN2
135
PCMIN3
136
PCMIN4
139
PCMIN5
140
PCMIN6
141
PCMIN7
20
CO01
21
CO02
22
CO03
1
CO04
2
CO05
3
CO06
4
CO07
143
X1
144
X2
32
CO11
33
CO12
34
CO13
35
CO14
36
CO15
28
CO16
29
CO17
129
GPI
118
GPO
80
PO04
79
PO05
52
CO21
40
CO22
39
CO23
38
CO24
37
CO25
26
CO26
27
CO27
77
CO31
76
CO32
75
CO33
74
CO34
73
CO35
83
CO36
82
CO37
R70
10k
+5B
R71
10k
+5B
R72
10k
+5B
+5B
R73
10k
R57
1k
+5B
DT
AN
R112
47
C96
47P
IC19
D0
13
D1
14
D2
15
D3
17
D4
18
D5
19
D6
20
D7
21
DE
24
A7
5
A6
6
A5
7
A4
8
A3
9
A2
10
A1
11
A0
12
CE
22
VCC
32
GND
16
A8
A9
A10
23
A11
25
A12
4
A13
28
A14
29
A15
3
A16
2
PGM
31
A17
30
VPP
1
C56
0.022
+5B
R87
10K
+5B
X1
12MHZ
18P
C54
18P
SELCK
CN9
1
2
3
4
5
6
7
8
9
10
11
13
12
14
15
16
18
20
19
17
R110
47
R111
47
-15V
-5V
FG
+5V
+15V
R221
2.2K
C47
0.022
+5B
R18
10K
+5B
+5V
DT
AN
C22
100P
R37
100K
C37
0.022
C38
0.022
R202
1.0K
C94
47P
C95
47P
CN4
2
C68
0.022
C81
C82
C83
+5B
R67 10k
+5B
+5B
R66 10k
R700
820
R701
820
R702
820
R703
820
C703
3900P
C702
3900P
C701
3900P
C700
3900P
CN702
2
3
20
5
7
1
T3
6
43
1
L11
L12
L25
42
31
JA
1
2
1
Q601
+5B
R610
22K
-15V
Q602
-15V
IC9
5
ENV1
6
ENV2
2
OSC2
1
OSC1
7
OUT
8
VDD
3
VSS
R605
820K
R606
22K
C604
0.1
R608
120K
C603
0.022
R604
150
R603
330
+5B
R601
100K
R602
100K
R609
22K
R48
33K
R220
22K
R119
10K
IC12
1
2
3
4
8
+5V
R118
33K
-5V
R117
10K
C88
50V2.2
µ
D12
D11
R120
330K
Q11
+15V
R116
4.7K
Q12
IC12
5
6
7
R53
100K
R115
2.2K
C86
0.1
µ
R33
4.7K
C27
0.001
R34
33K
R30
220K
C26
0.1
µ
R127
4.7K
T5
1
34
6
L9
L10
JA
3
1
3
R226
33
+5B
1
R85
680
+5V
R225
33
IC36
HCU04
11
10
IC36
HCU04
13
12
X3
R224
1M
C101
22P
C100
22P
+5B
CN601
1
2
LED
C93
100P
C17
0.1
VA
G
+5V
-5V
VA
G
R35
100K
IC10
5
6
7
IC7
15
PCMI
11
PCMO
7
PD
13
RC
12
TXC
14
RSYC
10
TSYC
1
A
GND
6
M/A
16
VDD
8
VSS
9
DGND
2
A0
3
A1
5
GA1
4
GA2
C35
0.022
C36
0.022
+5V
-5V
VA
G
C29
100P
R59
100K
C21
0.1
VA
G
R38
100K
R203
1.0K
VA
G
R36
120K
C19
100P
D7
D8
R65
560
C20
3300P
VA
G
T2
6
43
1
L7
VA
G
R39
120K
C23
100P
L8
D9
C24
3300P
JA
2
1
2
D10
R19
560
VA
G
IC10
1
2
3
4
8
+15V
-15V
VA
G
R21
56K
C28
0.1
C25
0.1
PLLPRSN
EXTCK
CN14
4
3
2
1
+5B
SW3
N/M
R97
10K
+5B
IC38
3
2
D
6
Q
4
PR
1
CLR
5
Q
EXTCK
LS151
IC39
11
SELA
10
SELB
9
SELC
4
D0
3
D1
2
D2
1
D3
15
D4
14
D5
13
D6
12
D7
7
STR
5
W
6
Y
IC8
15
PCMI
11
PCMO
7
PD
13
RC
12
TXC
14
RSYC
10
TSYC
1
A
GND
6
M/A
16
VDD
8
VSS
9
DGND
2
A0
3
A1
5
GA1
4
GA2
Z1
10K
2
3
4
5
6
7
8
9
1
CN1
56
54
52
48
50
44
46
49
43
45
51
47
53
CN1
55
Z2
10K
2
3
4
5
6
7
8
9
1
+5V
+5V
-15V
Q604
R611
22K
Q603
+5B
-15V
VA
G
VA
G
VA
G
VA
G
VA
G
VA
G
VA
G
VA
G
VA
G
C89
0.1
µ
R50
220K
+15V
D16
R121
2.2K
VA
G
Q13
R122
4.7K
R124
33K
-5V
VA
G
R128
4.7K
Q14
C30
0.1
µ
IC27
1
2
3
4
8
+5V
D17
VA
G
R52
4.7K
R123
10K
VA
G
VA
G
T4
1
34
6
R126
330K
R125
10K
C91
50V2.2
µ
C31
0.001
L14
JA
4
1
3
VA
G
VA
G
IC27
5
6
7
L13
VA
G
VA
G
R51
33K
R40
100K
VA
G
VA
G
VA
G
CN701
1
2
3
4
5
6
IC3
2
STi0
3
STi1
4
STi2
5
STi3
6
STi4
7
STi5
8
STi6
9
STi7
13
A0
14
A1
15
A2
16
A3
17
A4
18
A5
29
D0
28
D1
27
D2
26
D3
25
D4
24
D5
23
D6
22
D7
39
ODE
10
VDD
30
VSS
21
CS
19
DS
20
R/W
38
ST
o0
37
ST
o1
36
ST
o2
35
ST
o3
34
ST
o4
33
ST
o5
32
ST
o6
31
ST
o7
1
DT
A
12
C4i
11
F0i
C8M
R201
1.0K
C11
0.1
C33
0.022
-5V
+5V
R22
100K
VA
G
C34
0.022
VA
G
C16
100P
IC6
15
PCMI
11
PCMO
7
PD
13
RC
12
TXC
14
RSYC
10
TSYC
1
A
GND
6
M/A
16
VDD
8
VSS
9
DGND
2
A0
3
A1
5
GA1
4
GA2
R23
100K
IC11
5
6
7
VA
G
R24
120K
C12
100P
R28
1210
R25
82K
R32
82K
IC11
1
2
3
4
8
+15V
-15V
R26
100K
R29
1210
R27
100K
J6
C13
R31
1400
VA
G
VA
G
T1
6
41
3
CN1
60
OHCA
T
58
OHCAR
FG
FG
FG
FG
C602
16V4.7
C601
16V4.7
FG
FG
C90
25V33
µ
C87
25V33
µ
R227
10K
ECK
L27
41
32
L26
41
32
L24
4
1
3
2
CP[29]
CP[30]
CP[29]
CP[30]
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]
A[1]
A[2]
A[3]
A[4]
A[16]
A[17]
A[18]
A[21]
A[22]
A[23]
D[0]
D[1]
D[2]
D[3]
D[4]
D[5]
MU/A
R/WN
PDPG[0]
CHS[0]
CHS[1]
CHS[2]
CHS[3]
CHS[4]
C4M
CPUCK
PD15N
FHNR
CHS[4]
CP[28]
CP[31]
PDPG[1]
PIGN
POGN
MCLK
PO
WRSTN
CSRAM2N
CSR
TCN
CSRAM[1]
UWRN
L
WRN
IORN
ECK
IR
WN
IOCSN
SRSTN
CSR
OMN
IO
WNA
HWS[7]
HWS[6]
HWS[3]
HWS[2]
HWS[1]
HWR[1]
HWR[2]
HWR[3]
HWR[4]
HWR[6]
HWR[5]
HWR[7]
MOHMUTE[0]
MOHMUTE[1]
CP[27]
PDOHCA
HWSO
C2M
C2M
MU/A
MU/A
HWR
O
HWRO
HWR
O
HWRO
HWR
O
HWR
O
HWRO
HWR
O
D[0]
D[1]
D[2]
D[3]
D[4]
D[5]
D[6]
D[7]
PCM[0-7]
PCM[7]
PCM[6]
PCM[5]
PCM[4]
PCM[3]
PCM[2]
PCM[1]
PCM[0]
PCM[0]
PCM[1]
PCM[2]
PCM[3]
PCM[4]
PCM[5]
PCM[6]
PCM[7]
MOH1
EXT P
A
G1
(T
O CN4)
EXT P
A
G2
MOH2
(T
O CN12)
SMDR
LED
Not Mounted
Not Mounted
5
0
5
0
5
0
5
0
TSW
ASIC
CONFERENCE
DTMF GENERA
T
O
R
T
ONE GENERA
T
O
R
P
. I/O POR
TS
AG
C
5
0
CIRCUIT
AG
C
CIRCUIT
CODEC
0
0
0
0
MUSIC
AMP
AMP
AMP
0
0
IC
5
0
0
0
5
0
0
CONF
& T
ONE
RO
M
5
0
5
0
5
0
5
0
5
0
5
0
5
0
5
0
5
0
CODEC
CODEC
5
0
5
0
5
0
5
0
5
0
5
0
5
0
5
0
5
0
5
0
5
0
5
0
0
0
0
0
0
0
0
0
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 ...