1
A0
2
A1
3
A2
4
GND
5
SDA
6
SCL
7
WP
8
VCC
+5.5V
+4.0V
6.3V100
C41
D4
220
R42
100
R41
TP90
TP91
C40
10V100
TP89
Q9
3
ADJ
2
VOUT
1
VIN
4
VOUT
+2.65V
680P/500V
C1
100
R29
R5
220K
J1
1
2
3
4
5
6
TP45
TP39
D10P
C19
D10P
C18
Q3
D2
1.5M
R2
2.2K
R10
R6
180K
TP2
2.7K
R8
SA1
100
R30
TP40
R3
220K
K0.022
C4
R4
180K
1.5M
R1
RLY1
NC
1
2
3
4
7
8
9
10
10
K
R9
K0.022
C3
100K
R7
TP5
33
R43
TP84
33
R44
J2
1
GND
2
DC_PLUG
5.6M
R53
180K
R54
K0.01
C49
180K
R82
K0.01
C74
5.6M
R81
TP3
TP101
J105
1
J101
1
J104
1
J103
1
VBACK
+2.65V
J102
1
680P/500V
C2
1
CHARGE-
2
Q2
C89
K1000P
TP201’’
R68
39
R89
1K
D9
+4.0V
C90
J100P
Q10
TP202’Ringer -’
C60
NC
C62
NC
C5
NC
C63
NC
C92
NC
C91
NC
C77
NC
C6
NC
D1
NC
D8
NC
D7
NC
JMP3
NC
JMP2
NC
JMP7
NC
NC
JMP5
JMP6
NC
JMP4
NC
NC
JMP8
JMP1
NC
L2
NC
R73
NC
R71
NC
R74
NC
R77
NC
R85
NC
NC
R70
R72
NC
Q11
NC
Q1
NC
K3300P
C7
C96
D10P
C99
D10P
OPTION4
’SCL’
’SDA’
(13)
(12)
(11)
(10)
(6)
(5)
(4)
(3)
(2)
(1)
(9)
(8)
(7)
: No Components
BF822-250V
OV ON-HOOK
+0.7V DC OFF-HOOK
+60V DC ON-HOOK
+10V DC OFF-HOOK
60v
DC
LINE VOL TAGE 60V DC
+4.0V DC
Summary of Contents for KX-A143EXB
Page 8: ...5 LOCATION OF CONTROLS 5 1 Base Unit 5 2 Handset 8 ...
Page 18: ...8 OPERATIONS 8 1 Turning the Power On Off 18 ...
Page 22: ...8 6 Selecting a Base Unit 9 DISASSEMBLY INSTRUCTIONS 9 1 Base Unit 22 ...
Page 26: ...11 TROUBLESHOOTING GUIDE Flow Chart 26 ...
Page 49: ...18 FREQUENCY TABLE MHz 49 ...
Page 56: ...25 CPU DATA BASE UNIT 25 1 IC2 BBIC 56 ...
Page 60: ...45 MICP A I 60 ...
Page 73: ...73 ...
Page 75: ...33 ACCESSORIES AND PACKING MATERIALS 75 ...
Page 76: ...33 1 KX TCD430FXB FXC FXW 33 2 KX A143EXB EXC EXW 76 ...
Page 77: ...34 TERMINAL GUIDE OF THE ICs TRANSISTORS AND DIODES 34 1 Base Unit 77 ...
Page 102: ...PbF D1 J1 CIRCUIT BOARD CHARGER UNIT Component View ...
Page 103: ...PbF R1 R2 TP4 TP1 TP2 TP3 CIRCUIT BOARD CHARGER UNIT Flow Solder Side View ...
Page 104: ...Marked PbF IC1 IC3 IC2 1 1 64 49 33 4 5 8 1 11 28 18 ...
Page 106: ...PbF IC1 IC2 100 80 30 50 5 8 4 1 11 18 1 IC3 Marked ...
Page 108: ...PbF D1 J1 Marked PbF R1 R2 TP4 TP1 TP2 TP3 Marked Component View Flow Solder Side View ...
Page 112: ...PbF R1 R2 TP4 TP1 TP2 TP3 Digital Volt Meter 12Ω 2W A ...