Panasonic KX-TCD465UA / KX-TCD467UA / KX-A146UA Service Manual ▷ View online
36 FOR SCHEMATIC DIAGRAM
36.1. Base Unit (SCHEMATIC DIAGRAM (BASE UNIT))
Notes:
1. DC voltage measurements are taken with voltmeter from the negative voltage line.
2. This schematic diagram may be modified at any time with the development of new technology.
36.2. Handset (SCHEMATIC DIAGRAM (HANDSET))
Notes:
1. DC voltage measurements are taken with an oscilloscope or a tester with a ground.
2. The schematic diagrams and circuit board may be modified at any time with the development of new technology.
36.3. Charger Unit (SCHEMATIC DIAGRAM (CHARGER UNIT))
Notes:
1. DC voltage measurements are taken with voltmeter from the negative voltage line.
2. This schematic diagram may be modified at any time with the development of new technology.
93
KX-TCD465UA / KX-TCD467U A / KX-A146UA
37 SCHEMATIC DIAGRAM (BASE UNIT)
20V
D3
120K
R42
+2.8V
IC5
3
5
1
4
2
D6
500V1000P
C24
+2.8V
+2.8V
SA1
TP11
100K
R12
+2.8V
3.3K
R1
680K
R40
1.5K
R2
Z1.0
C45
J150P
C27
K0.1
C1
J2
1
2
3
4
5
6
250V0.47
C2
220
R62
120K
R46
6.3V330
C37
680P/500V
C7
100
R61
680P/500V
C6
+2.8V
TP3
D5
TP4
20V
D2
2.2K
R15
IC7
1
A11
2
A9
3
A8
4
A13
5
A14
6
A17
7
WE
8
VCC
9
A18
10
A16
11
A15
12
A12
13
A7
14
A6
15
A5
16
A4
17
A3
18
A2
19
A1
20
A0
21
D0
22
D1
23
D2
24
GND
25
D3
26
D4
27
D5
28
D6
29
D7
30
CE
31
A10
32
OE
500V1000P
C25
Q4
BF822-250V
C36
16V100
10K
R14
TP9
IC1
2
1
4
3
TP10
5.6K
R13
K0.1
C26
TP1
10K
R66
2.2K
R67
IC6
1
RDY/BUSY
2
RESET
3
WP
4
NC
5
NC
6
VCC
7
GND
8
NC
9
NC
10
NC
11
CS
12
SCK
13 SI
14
14
SO
15
NC
16
NC
17
NC
18
NC
19
NC
20
NC
21
NC
22
NC
23
NC
24
NC
25
NC
26
NC
27
NC
28
NC
IC3
2
VIN
3 VSS
1
VOUT
47K
R41
47K
R43
680K
R39
100
R44
100
R45
K0.1
C28
82K
R47
TP2
33
R59
33
R60
TP5
+2.8V
K0.1
C44
10K
R65
J102
1
J103
1
J104
1
J101
1
J105
1
+4.0V
TP13
10K
R64
10K
R63
RLY1
NC
1
2
3
4
7
8
9
10
D4
4.7K
R68
M4.7V
D11
M4.7V
D12
J100P
C71
20V
D14
K1000P
C72
K0.01
C3
K0.01
C4
180K
R6
K0.1
C91
IC4
1
A0
2
A1
3
A2
4
GND
5
SDA
6
SCL
7
WP
8
VCC
IC2
3
ADJ
2
VOUT
1
VIN
4
VOUT
C11
5.6K
6.3V330
C39
TP106
Q2
+2.8V
J1
1
GND
2
DC_PLUG
1
CHARGE-
2 CHARGE+
C8
NC
NC
C10
C9
NC
NC
C5
NC
C87
NC
D15
NC
D1
JMP2
NC
NC
JMP6
JMP4
NC
JMP3
NC
JMP7
NC
JMP1
NC
NC
JMP9
JMP5
NC
JMP8
NC
NC
L1
R11
NC
NC
R5
R8
NC
NC
R7
NC
R4
R9
NC
NC
R3
R10
NC
Q3
NC
Q1
NC
DAB1
AD17
AD00
AD05
AD10
AD12
AD15
DAB0
DAB4
AD16
DAB2
AD09
AD03
AD14
AD01
DAB3
AD13
AD08
AD02
DAB7
DAB6
AD04
AD11
NC
DAB5
AD06
AD07
V_CS
V_SI
V_SCK
V_SO
EARTH
CLIP_STATE
RING
’SCL’
’SDA’
(8)
(7)
(4)
(5)
(6)
(6)
(3)
(9)
(10)
(11)
(11)
(12)
(13)
(2)
(1)
(14)
~
(19)
(20)
: No Components
0V: ON-HOOK
+0.7V DC: OFF-HOOK
+0.7V DC: OFF-HOOK
60v
DC
DC
LINE VOLTAGE 60V DC
Bell
+4.0V DC
+60V:DC ON-HOOK
+10V:DC OFF-HOOK
+10V:DC OFF-HOOK
0V: ON-HOOK
9.8V DC: OFF-HOOK
9.8V DC: OFF-HOOK
94
KX-TCD465UA / KX-TCD467U A / KX-A146UA
IC8
1
VSS
2
DM1
3
DM2
4
DM3
5
SYRI
6
VSSO
7
XTAL
8
L
OA
D
9
V
DDREG
10
RXDSG
11
VDDTXD
A
12
TXD
A
13
VD
D
14
VSS
15
PAO
N
16
DAON
17
SYCL
18
SYEN
19
SYD
A
20
RXD
A
21
RXD
B
22
ANT1
23
VD
D
24
VSS
25
ANT2
26
12CLK
27
12DAT
28
VSS
29
CSRO
Q
30
BSCL0
31
BSCL1
32
A0
33
A1
34
VD
D
35
VSS
36
A2
37
A3
38
A4
39
A5
40
A6
41
A7
42
A8
43
A9
44
A10
45
VSS
46
VDD
47
A11
48
A12
49
A13
50
A14
51
A15
52
D0
53
D1
54
D2
55
VDD
56
VSS
57
D3
58
D4
59
D5
60
D6
61
D7
62
P0.7
63
P0.6
64
P0.5
65
P0.4
66
VDD
67
VSS
68
P0.3
69
P0.2
70
P0.1
71
P0.0
72
PX. 2
73
PX.
1
74
PX.
0
75
R2
76
R1
77
VDDEEPRO
M
78
VDD
79
VSS
80
KHZ96
81
TONE
82
P1.
5
83
MA15
84
MA14
85
MA13
86
MA12
87
MA11
88
VDD
89
VSS
90
MA10
91
MA
9
92
MA
8
93
MA
7
94
MA
6
95
MA
5
96
MA
4
97
MA
3
98
VD
D
99
VSS
100
MA
2
101
MA
1
102
MA
0
103
FRD
Y
104
MD4
105
MD2
106
MD1
107
MD0
108
VDD
109 VSS
110 LSON
111 LHONI
112 LHON
113 LHOP
114 LHOPI
115 LSOP
116 VSSA
117 VDDA
118 LMICS
119 LMIP
120 LMFBN
121 LMFBP
122 LMIN
123 SON
124 HONI
125 HON
126 HOP
127 HOPI
128 SOP
129 REFVH
130 BREF
131 VSSA
132 VDDA
133 MIP
134 MFBN
135 MFBP
136 MIN
137 ADREFP
138 ADREFN
139 RSSI
140 AD3
141 AD4
142 MPCINP
143 RESETQ
144 VDD
110 LSON
111 LHONI
112 LHON
113 LHOP
114 LHOPI
115 LSOP
116 VSSA
117 VDDA
118 LMICS
119 LMIP
120 LMFBN
121 LMFBP
122 LMIN
123 SON
124 HONI
125 HON
126 HOP
127 HOPI
128 SOP
129 REFVH
130 BREF
131 VSSA
132 VDDA
133 MIP
134 MFBN
135 MFBP
136 MIN
137 ADREFP
138 ADREFN
139 RSSI
140 AD3
141 AD4
142 MPCINP
143 RESETQ
144 VDD
K0.01
C15
50V10
C21
K0.22
C22
Q9
33K
R21
390
R34
D7
4.7K
C42
K0.1
C41
Z1.0
C40
Z1.0
C43
Q11
1K
R48
K0.1
C30
12K
R51
82K
R52
D10P
C32
D10P
R22
5.6K
R23
100K
R25
33K
R26
K1.0
C18
K0.1
C19
22
0
R30
22
R24
K1.0
C16
56
R27
K0.082
C53
K0.1
C29
D10P
C31
82K
R50
8.2K
R49
C6P
C54
J27P
C55
K0.082
C47
NC
R72
NC
R73
NC
R71
NC
R74
100K
R54
100
R55
D10P
C33
1K
R77
NC
R75
NC
R76
+2.8V
K0.1
C48
68K
R53
K0.033
C49
TP7
TP8
+2.8V
R20
0
Q7
1K
R37
10K
R36
+2.8V
Q8
1K
R38
C56
0
R78
150K
TP105
TP104
TP103
TP102
TP101
C50
1.0K
C51
1.0K
C52
Z1.0
D9
NC
1
3
2
+2.8V
K0.015
C46
+4.0V
C60
J33P
L2 4.7uH
IC9
5 RSSI
6 VCC_O
6 VCC_O
C
7 GND
8 SYCL
9 SYDA
8 SYCL
9 SYDA
10 SYEN
11 GND
12
RXDSG
13
SYRI
14
GN
D
15
GN
D
16
GN
D
17
GND
18
GND
19
GND
20
RXDA
21
GND
22
GND
23
GND
24
PSEL
25
PAON
26
GND
27
VCC_PA
28
GND
29
GND
30
GN
D
31
GN
D
32
GN
D
33
RF1
34
GN
D
GND
1
GND
2
GND
3
TXDA
4
R82
33
R69
J22P
10K
R70
+2.8V
C65
C3P
R80
39
C64
D10P
C63
D10P
A2
1
C62
C6P
C66
C2P
R79
39
A1
1
D10
1
3
2
R56
10K
D10P
C34
+2.8V
TP6
S1
3
4
2
1
X1
10.368MHz
TP15
M4.7V
D13
K1000P
C70
L3
33nH
R84
180
R83
180
C69
K4.7
C68
C2P
C75
D10P
C76
D10P
ANT
C79
D10P
C80
C2P
C17
K0.01
R29
1M
R28
470K
C67
D10P
D10P
C35
C14
K0.01
D10P
C88
J22P
C89
1.2K
R85
K0.47
C90
C92
D10P
D10P
C96
C61
K4.7
Q12
NC
C77
C2P
C78
C2P
R86
1.5M
C57
D10P
C58
D10P
+4.0V
TP202’Ringer -’
R87
1K
Q13
C97
K1000P
C98
J100P
D16
R57
39
TP201’Ringer +’
C23
NC
C93
NC
C94
NC
C95
NC
C73
NC
C85
NC
C20
NC
C82
NC
NC
C13
NC
C38
C86
NC
C100
NC
C83
NC
C99
NC
C84
NC
C74
NC
C81
NC
C12
NC
NC
D8
NC
R16
NC
R19
NC
R17
NC
R18
Q5
NC
C101
NC
Q6
NC
C103
J100P
C102
C0.5P
Q10
10
R31
10K
R32
680
R33
470
R35
AD15
AD14
AD13
AD12
AD11
AD14
AD13
AD12
AD11
AD10
AD09
AD08
AD07
AD06
AD05
AD04
AD03
AD09
AD08
AD07
AD06
AD05
AD04
AD03
AD02
AD01
AD00
DAB7
DAB6
DAB5
DAB4
DAB3
DAB6
DAB5
DAB4
DAB3
DAB2
DAB1
DAB0
DAB1
DAB0
V_SCK
V_SO
V_SI
V_CS
AD17
AD16
RSSI
SYRI
RXDSG
TXDA
SYCL
SYEN
SYDA
RXDA
DRON
SYEN
RXDSG
ANT1
ANT2
ANT2
ANT1
DRON
SYRI
TXDA
RSSI
RSSI
RXDA
SYCL
SYDA
SYDA
(8)
(7)
(4)
(5)
(6)
(6)
(3)
(9)
(10)
(11)
(11)
(12)
(13)
(2)
(1)
(14)
~
(19)
(20)
KX-TCD465UAF/UAS/UAT
SCHEMATIC DIAGRAM (BASE UNIT)
: No Components
10.368MHz burst
406 s
peak
+3.1V
+3.1V
428 s
TX-DATA
RX-DATA
2.8V DC
1V
FREQ 10.368MHz
CLIP
0V: ON-HOOK
3.9V DC: OFF-HOOK
3.9V DC: OFF-HOOK
95
KX-TCD465UA / KX-TCD467U A / KX-A146UA
38 SCHEMATIC DIAGRAM (HANDSET)
3.9V DC
2.65V DC
2.65V DC
C28 K0.1
Q3
TP5
C23
K0.1
Q2
C15
6.3V330
CN1
1
CHARGE+
2
CHARGE-
C29 K0.1
L4
10uH
C3
K0.1
VBACK
+4V
F1
C20
K0.1
IC2
1
A0
2
A1
3
A2
4
GND
5
SDA
6
SCL
7
WP
8
VCC
C22
K0.1
R2
0.3
R21
0.1
C33
K2.2
L2
47uH
TP7
TP3
CN3
1
BATTERY+
2
BATTERY-
TP12
C2
K4.7
C21
K0.1
R6
3.3K
R4
10K
TP8
C18 K0.1
R19 15K
C27
K0.1
IC1
1
PL.29
2
PL.30
3
VDD
4
VSS
5
PL.31
6
PL.32
7
PL.33
8
PL.34
9
PL.35
10
DRON
11
RXDSG
12
RXDA
13
SYEN
14
SYDA
15
SYCL
16
TXDA
17
PY.0
18
PY.1
19
PY.2
20
PY.3
21
PY.4
22
PAON
23
SYRI
24
VDD
25
VSS
26
ONSW
27
CDT
28
DCDCDRV
29
DCDCCMR
30
RESETQ
31
VSSO
32
LOAD
33
XTAL
34
VDDPM
35
VDDLO
36
VDDBAT
37
VDDLR
38
CHARGE_START(P0.2)
39
VDDA
40
VSSA
41
HON
42
HOP
43
BREF
44
MICS
45
MICP
46
MICN
47
ADREF
48
ADRSSI
49
P0.4(ADBAT)
50
P0.5(AD4N)
51
51:P0.6(AD4P)
52
P0.3
53
PX.0
54
PX.1
55
PX.2
56
PL.0
57
PL.1
58
PL.2
59
PX.3
60
PX.4
61
PL.3
62
PL.4
63
VDD
64
VSS
65
SUPEEP
66
I2DAT
67
ISCLK
68
MODE
69
R2
70
R1
71
VBACK/P0.7
72
PL.5
73
PL.6
74
PL.7
75
PL.8
76
PL.9
77
VDDLI
78
PL.10
79
PL.11
80
PL.12
81 PL.13
82 PL.14
83 PL.15
84 PL.16
85 VSS
86 VDD
87 PL.17
88 P0.0
89 P0.1
90 PL.18
91 PL.19
92 PL.20
93 PL.21
94 PL.22
95 PL.23
96 PL.24
97 PL.25
98 PL.26
99 PL.27
82 PL.14
83 PL.15
84 PL.16
85 VSS
86 VDD
87 PL.17
88 P0.0
89 P0.1
90 PL.18
91 PL.19
92 PL.20
93 PL.21
94 PL.22
95 PL.23
96 PL.24
97 PL.25
98 PL.26
99 PL.27
100PL.28
D1
CN2
1
C5
2
C4
3
C3
4
C2
5
C1
6
C0
7
S29
8
S28
9
S27
10
S26
11
S25
12
S24
13
S23
14
S22
15
S21
16
S20
17
S19
18
S18
19
S17
20
S16
21
S15
22
S14
23
S13
24
S12
25
S11
26
S10
27
S9
28
S8
29
S7
30
S6
31
S5
32
S4
33
S3
34
S2
35
S1
36
S0
R3
56
Q1
G
S
D
TP4
TP10
C30 K0.1
TP4V
X1
10.368MHz
C17
J18P
C14
6.3V330
L5
10uH
TP6
C16
C1P
Q102
Green
LED101
Q101
R101
82
Green
LED102
R102
82
Green
LED103
R103
82
Green
LED106
Green
LED105
Green
LED107
68
R104
Green
LED104
390
R105
Q103
Red
LED108
+4V
S14
S9
S19
S17
S8
S24
S21
S20
S7
S11
S25
S12
S18
S3
S22
S4
S6
S15
S13
S23
S2
S5
S16
S1
TP18
TP19
TP20
TP21
R11
0
C25
NC
C34
NC
C35
NC
D5
NC
D2
NC
R12
NC
R16
NC
REG
PL.14
PL.19
PL.23
PL.15
PL.18
PL.21
PL.16
PX.3
PX.1
PL.22
PL.15
PL.17
PL.34
PL.27
PL.28
PL.29
PL.0
PL.29
PL.31
PL.21
PL.19
PL.10
PL.1
PL.2
PL.30
PY.2
PL.3
PY.1
PL.4
PL.28
PL.16
PL.5
PX.0
PX.1
PL.18
PX.2
PL.13
PL.32
PL.20
PL.22
PL.27
PL.0
PX.4
PY.4
PL.4
PL.7
PL.1
PL.8
PL.26
PY.3
PL.2
PL.9
PL.32
PL.11
PL.3
PL.6
PL.25
PL.7
PL.23
PY.0
PL.17
PL.8
PL.12
PL.24
PL.5
PL.9
PL.10
PL.31
PL.14
PL.24
PX.4
PX.0
PL.11
PL.25
PL.33
PL.35
PL.33
PL.12
PL.26
PL.34
PL.30
PL.35
PL.13
PL.6
PL.20
PO.3
PO.3
PY.4
PY.1
PY.0
PY.3
PX.3
PY.2
PX.2
'GND'
'SCL'
'SDA'
'BATT'
LCD BACKLIGHT
KEY BACKLIGHT
Õ8Õ
Õ
->Õ
Õ5Õ
ÕRÕ
Õ0Õ
Õ6Õ
ÕREDIALÕ
Õ7Õ
ÕTEL BOOKÕ
Õ1Õ
Õ4Õ
Õ2Õ
Õ9Õ
ÕUPÕ
ÕINTÕ
ÕCancelÕ
ÕRIGHTÕ
ÕLEFTÕ
Õ3Õ
Õ#Õ
ÕTALKÕ
ÕSPÕ
Õ*Õ
ÕDOWNÕ
(1)
(14)
(10)
(11)
(12)
(13)
(13)
(4)
(3)
(2)
(15)
(16)
(17)
(18)
(22)
(23)
(19)
~
~
96
KX-TCD465UA / KX-TCD467U A / KX-A146UA
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