X302
4.9152M
R335
1M
C308
18P
C309
18P
IC309
89
6
IC309
12
13
IC305
VDD
VSS
1
NC
18
COL1
4
COL2
5
COL3
6
ROW1
17
ROW2
16
ROW3
15
ROW4
14
COL4
11
OSCO
10
TONE
20
CD
19
XMIT
2
MUTE
12
OSCI
9
NC
13
NC
8
NC
3
C316
0.022
+5V
R336 47K
DB3
45
DB2
44
DB1
42
DB0
41
R
9
TRNRDY2
17
TRNEMP1
31
SYNC/BRX1
29
RCVRDY1
10
DSR2
23
CTS2
20
RCVDT2
13
DTR2
26
RCVDT1
46
DTR1
37
RTS1
36
TRNDT1
32
W
6
DB7
4
DB6
3
DB5
2
DB4
1
TRNRDY1
28
RST
34
GND
47
VCC
40
CLK
33
RCVCLK2
27
TRNCLK2
15
RCVCLK1
39
TRNCLK1
5
DSR1
35
CTS1
30
RTS2
25
TRNDT2
22
CS
1
7
CS
2
12
RSLCT0
8
RSLCT1
11
RCVRDY2
16
SYNC/BRX2
18
TRNEMP2
21
IC303C
DB3
45
DB2
44
DB1
42
DB0
41
R
9
TRNRDY2
17
TRNEMP1
31
SYNC/BRX1
29
RCVRDY1
10
DSR2
23
CTS2
20
RCVDT2
13
DTR2
26
RCVDT1
46
DTR1
37
RTS1
36
TRNDT1
32
W
6
DB7
4
DB6
3
DB5
2
DB4
1
TRNRDY1
28
RST
34
GND
47
VCC
40
CLK
33
RCVCLK2
27
TRNCLK2
15
RCVCLK1
39
TRNCLK1
5
DSR1
35
CTS1
30
RTS2
25
TRNDT2
22
CS
1
7
CS
2
12
RSLCT0
8
RSLCT1
11
RCVRDY2
16
SYNC/BRX2
18
TRNEMP2
21
C307C
0.022
+5V
C307A
0.022
+5V
R333A
47K
R331A
47K
R334A
47K
R331C
47K
R333C
47K
R334C
47K
R332A
47K
R332C
47K
1
2
IC312
3
4
+5V
C320
0.022
22
R327
22
R326
22
R325
22
R324
IC309
34
5
CN301
PQJP22A45ZA-HT
10
11
12
13
14
15
16
17
22
7
8
1
2
3
4
5
9
21
20
19
18
6
IC310
1
2
4
IC311
1
2
3
IC311
12
13
11
IC311
4
5
6
IC311
9
10
8
SN74L
V273
IC308
D1
3
D2
4
D3
7
D4
8
D5
13
D6
14
D7
17
D8
18
CLR
1
CLK
11
Q8
19
Q7
16
Q6
15
Q5
12
Q4
9
Q3
6
Q2
5
Q1
2
IC306
1C
1
1A
2
1Y
3
2C
4
2A
5
2Y
6
GND
7
3Y
8
3A
9
3C
10
4Y
11
4A
12
4C
13
Vcc
14
74LS138
IC307
1
A
2
B
14
Y1
15
Y0
3
C
6
G1
4
G2A
5
G2B
12
Y3
13
Y2
10
Y5
11
Y4
7
Y7
9
Y6
+5V
C315
0.022
+5V
CN303
PQJP04A45ZA-HT
1
2
3
4
C311
0.1
+5V
C310
0.1
C312
0.1
C317
10V33
µ
+5V
C318
0.022
+5V
+5V
C319
0.022
C322
0.022
+5V
IC307
16
8
IC309
14
7
IC311
14
7
IC308
20
10
J304
N.C
C324
0.1
+5V
R337 47K
+5V
C325
0.022
IC312
11
10
IC312
98
IC312
5
6
C326
0.1
IC312
14
7
12
13
+5V
IC310
5
3
C321
0.022
IC309
10
11
12
PQVIMS8C5A2G
IC304
11 PC2
13 PC3
8 PC4
7 PC5
6 PC6
5 PC7
33 RESET
2 GND
39 VCC
24 VCC
17 VCC
1
CS
34
WR
44
RD
25
D7
26
D6
27
D5
28
D4
29
D3
30
D2
31
D1
32
D0
3
A1
4
A0
22
N.C.
12
N.C.
43
PA0
42
PA1
41
PA2
40
PA3
38
PA4
37
PA5
36
PA6
35
P
A
7
14
PB0
15
PB1
16
PB2
18
PB3
19
PB4
20
PB5
21
PB6
23
PB7
9
PC0
10
PC1
D7
D6
D5
D4
D3
D2
D1
D0
D1
D2
D3
D4
D5
D6
D7
D0
DA1
DA2
DA1
DA2
IOWN
IORN
RST
IOWN
IORN
RST
DA1,DA2
D2
D3
D4
D5
D6
D7
RST
IORN
CALLREVD
STDA
STDB
STDC
STDD
D[0]
D[1]
D[2]
D[3]
TOEA
TOEB
STDA
STDB
STDC
STDD
D[0]
D[1]
D[2]
D[3]
TOED
TOEC
TOEB
TOEA
DTMFGD
DTMFGC
DTMFGB
DTMFGA
A5
CIDSEL
A4
A3
A2
CS
N
A1
IOWN
D1
D2
D3
D4
D5
D6
D7
DA[1]
DA[2]
DA[5]
DA[6]
DA[7]
C
S0N
C
S1N
C
S2N
C
S3N
D1
D0
DA1
DA2
RST
RST
RST
DTMFGD
DTMFGC
DTMFGB
DTMFGA
TOED
TOEC
IOWN
IORN
D7
D6
D5
D4
D3
D2
D1
D0
DA2
DA1
CALLREVC
CALLREVB
CALLREV
A
CALLSTDD
CALLSTDC
CALLSTDB
CALLSTDA
(13)(14)(15)(16)(17)(18)(19)(20)(21)(22)(23)(24)(25)
(26)(27)(28)(29)(30)(31)(32)(33)
SERIAL-PARALLEL
CONVERT IC
SERIAL-PARALLEL
CONVERT IC
G/A
ADRESS
4.9152MHz
5
0
DATA
5
0
DTMF RECEIVER CONTROL
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 ...