IC2
103 A1
104 A2
87
HWOUT
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 RWN
100 ASN
61 DTACKN
59 CPUCK
57 RSTN
56 HALTN
15 CSRTCN
16 CSRAM1
25 CSRAM2N
51 UWRN
50 LWRN
17 IORN
19 IOWN
55 ECK
53 IRWN
31
116 EXTCK
137 C8K
130 CTRLOAD
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
CEDROMN
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
DTAN
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
27
A9
26
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
R20
1M
C53 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
DTAN
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
4
3
1
L11
L12
L25
4
2
3
1
JA1
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
3
4
6
L9
L10
JA3
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
VAG
+5V
-5V
VAG
R35
100K
IC10
5
6
7
IC7
15
PCMI
11
PCMO
7
PD
13
RC
12
TXC
14
RSYC
10
TSYC
1
AGND
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
VAG
C29
100P
R59
100K
C21
0.1
VAG
R38
100K
R203
1.0K
VAG
R36 120K
C19 100P
D7
D8
R65
560
C20
3300P
VAG
T2
6
4
3
1
L7
VAG
R39 120K
C23 100P
L8
D9
C24
3300P
JA2
1
2
D10
R19
560
VAG
IC10
1
2
3
4
8
+15V
-15V
VAG
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
AGND
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
91
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
91
+5V
+5V
-15V
Q604
R611
22K
Q603
+5B
-15V
VAG
VAG
VAG
VAG
VAG
VAG
VAG
VAG
VAG
C89
0.1
µ
R50
220K
+15V
D16
R121
2.2K
VAG
Q13
R122
4.7K
R124
33K
-5V
VAG
R128
4.7K
Q14
C30
0.1
µ
IC27
1
2
3
4
8
+5V
D17
VAG
R52
4.7K
R123
10K
VAG
VAG
T4
1
3
4
6
R126
330K
R125
10K
C91
50V2.2
µ
C31
0.001
L14
JA4
1
3
VAG
VAG
IC27
5
6
7
L13
VAG
VAG
R51
33K
R40
100K
VAG
VAG
VAG
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
STo0
37
STo1
36
STo2
35
STo3
34
STo4
33
STo5
32
STo6
31
STo7
1
DTA
12
C4i
11
F0i
C8M
R201
1.0K
C11
0.1
C33
0.022
-5V
+5V
R22
100K
VAG
C34
0.022
VAG
C16
100P
IC6
15
PCMI
11
PCMO
7
PD
13
RC
12
TXC
14
RSYC
10
TSYC
1
AGND
6
M/A
16
VDD
8
VSS
9
DGND
2
A0
3
A1
5
GA1
4
GA2
R23
100K
IC11
5
6
7
VAG
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
VAG
VAG
T1
6
4
1
3
CN1
60
OHCAT
58
OHCAR
FG
FG
FG
FG
C602 16V4.7
C601 16V4.7
FG
FG
C90
25V33
µ
C87
25V33
µ
R227
10K
ECK
L27
4
1
3
2
L26
4
1
3
2
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[28]
CP[31]
PDPG[1]
CP[31]
CP[27]
PIGN
POGN
MCLK
POWRSTN
CSRAM2N
CSRTCN
CSRAM[1]
UWRN
LWRN
IORN
ECK
IRWN
IOCSN
SRSTN
CSROMN
IOWNA
HWS[7]
HWS[6]
HWS[5]
HWS[4]
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
HWRO
HWRO
HWRO
HWRO
HWRO
HWRO
HWRO
HWRO
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 PAG1
(TO CN4)
EXT PAG2
MOH2
(TO CN12)
SMDR
LED
Not Mounted (Except IC38)
Not Mounted
Not Mounted
(1
)(
2
)
(3
)
(4
)(
5
)
(6
)(
7
)
(8
)(
9
)
(10)
(11)
(12)
(13)
(14)
(15)
(16)
(17)
(18)
(19)
(20)
5
0
5
0
5
0
5
0
TSW
ASIC
CONFERENCE
DTMF GENERATOR
TONE GENERATOR
P. I/O PORTS
AGC
5
0
CIRCUIT
AGC
CIRCUIT
CODEC
0
0
0
0
MUSIC
AMP
AMP
AMP
0
0
IC
5
0
0
0
5
0
0
CONF
& TONE
ROM
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
KX-
TA123
2
120
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 ...