82K
R255
C254
22000P
1M
R204
330K
R260
100 R203
X201
82K
R258
+5V
C293
10V100
µ
F
IC216
16
ESt
17
St/G1
18
VDD
11
D1
8
OSC2
7
OSC1
2
IN-
3
GS
1
IN+
12
D2
13
D3
14
D4
10
TO
E
15
StD
4
VREF
5
IC
6
IC
9
VSS
IC215
16
ESt
17
St/G1
18
VDD
11
D1
8
OSC2
7
OSC1
2
IN-
3
GS
1
IN+
12
D2
13
D3
14
D4
10
TO
E
15
StD
4
VREF
5
IC
6
IC
9
VSS
C292
10V100
µ
F
C252
22000P
330K
R257
+5V
33
R805
33
R804
33
R802
33
R803
33
R801
L210
L212
IC219
11
10
19
C4M
IC220
1
2
18
CPUCKN
20
C2MN
IC219
13
12
L211
C2M
IC221
2
12
4
10
6
8
14
7
9
5
11
3
13
1
+5V
IC223
1
2
3
13
12
11
5
4
6
9
10
8
IC219
9
8
IC219
1
2
IC222
3
5
7
91
0
6
4
2
IC219
5
6
D252
IC219
3
4
IC224
19
G
18
B
17
16
15
14
13
12
11
9
8
7
6
5
4
3
2
A
1
DIR
+5V
100
R299A
100
R299B
100
R299D
100
R299C
100
R299F
100
R299E
100
R299G
100
R299H
IC219
3
4
IC220
13
12
IC220
5
6
IC220
11
10
IC220
9
8
15
CHS[0]
14
CHS[1]
13
CHS[2]
12
CHS[3]
11
CHS[4]
1
DG
2
16
21
22
50
51
40
D0N
39
D1N
38
D2N
36
D4N
37
D3N
35
D5N
33
D7N
34
D6N
7
RSTN
9
IORN
8
IO
WN
6
IR
WN
5
ECK
26
A[9]
52
CA[0]
25
A[10]
53
CA[1]
24
A[11]
23
A[12]
+5V
22K
R280
22K
R281
+5V
10
IOCSN
32
A1N
31
A2N
30
A3N
28
A5N
29
A4N
27
A6N
60
BELL
CN206
31
45
HWR[4]
12
11
13
46
HWS[4]
2
3
1
56
4
43
HWR[5]
IC225
9
8
10
44
HWS[5]
54
OHCAR
CN201
56
OHCA
T
CN206
32
9
100
R272
C295
DG
IC227
2
D
3
CP
6
Q
5
Q
4
SDN
1
CDN
+5V
IC226
8
9
10
IC226
5
6
4
IC227
12
D
11
CP
8
Q
9
Q
10
SDN
13
CDN
+5V
IC226
2
3
1
CHS4N
CHS3N
R400
+5V
59
+15V
58
DG
55
+5V
57
-15V
D223
22
R270
C260
25V470
µ
+15B
+15V
F200
+5V
F201
-15V
C264
50V33
µ
C263
50V33
µ
1W82 R261
1.5K R262
Q251
D251
-5V
C255
50V33
µ
6.8K
R271
Z202
10K
1
2
3
4
6
7
8
9
5
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
C262
50V33
µ
TO
E
TO
E
STD[2]
STD[1]
D[1]
D[0]
D[3]
D[2]
D[7]
D[6]
D[5]
D[4]
A[1]
A[2]
A[3]
A[4]
A[5]
A[6]
A[9]
A[10]
A[11]
A[12]
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]
IR
WN
ECK
5
0
0
0
2.5
0
0
2.5
4
0
0
0
0
0
0
0
0
0
5
0
5
0
4
0
3.5
0
3.5
0
3.5
0
4
0
4
0
0
4
0
4
3
3.6
0
0
3.6
3.0
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 ...