Panasonic KX-TCD450RUM / KX-A145RUM / KX-TCD450RUT / KX-A145RUT Service Manual ▷ View online
TX-DATA
Q8
C25
6.3V10
K0.47
C12
3.9K
R18
50V10
C15
NC
C9
NC
R15
D10P
C21
R17
NC
NC
R13
K0.1
C20
C8
NC
D3
22
R19
TP97
C17
NC
150
R25
Q4
NC
750
R28
K0.22
C14
K0.027
C11
56
R20
TP50
NC
R11
Q6
13K
R16
C10
NC
100K
R21
R12
0
56
R23
K1.0
C13
NC
R14
56
R32
K0.22
C22
R38
33
+2.65V
J101
1
J102
1
J103
1
NC
R56
NC
R55
NC
C51
VBACK
J104
1
J105
1
+2.65V
C53
NC
Q5
NC
TP187
TP188
TP82
IC2
1
VDD
2
VSS
3
4
DRON
5D
3
6
RXDSG
7D
2
8
RXDA
9D
1
10
SYEN
11
D7
12
SYDA
13
SYCL
14
A10
15
TXDA
16
A1
17
PAON(TXSWON)
18
A0
19
A3
20
SYRI
21
VDD
22
VSS
23
RESETQ
24
VDDPM
25
VSS0
26
NC
27
LOAD
28
XTAL
29
NC
30
VDDLR
31
LRB
32
NC
33
VDDA
34
VSSA
35
NC
36
AON
37
AOP
38
NC
39
BREF
40
DLP
41
NC
42
DLN
43
AIN
44
NC
45
ADREF
46
ADRSSI
47
NC
48
AD2/(MPCINP)
49
AD3
50
NC
51
PX.0
52
A16
53
PX.1
54
A9
55
PX.2
56
A12
57
PX.3
58
A17
59
VDD
60
VSS
61
A5
62
A18
63
I2DAT
64
I2CLK
65
A15
66
A7
67
MODE
68
WRRAQ
69
R2/P1.7
70
A4
71
R1/P1.6
72
VBACK/P1.5
73
VSS(T_DSPCLK)
74
A6
75
A13
76 DSPIN/P1.0
77 A8
78 DSPOUT/P1.1
79 A14
80 DSPCLK/P1.2
81 A11
82 DSPFRM/P1.3
83 OERAQ
84 VSS
85 VDD
86 A2
87 P0.0
88 P0.1
89 CSRAQ
90 P0.2
91 P0.3
92 D4
93 P0.4/TXD
94 P0.5/RXD
95 P0.6
96 D6
97 P0.7
98 D5
99 ANT1
100 ANT2
C33
C1P
C32
J27P
R35
NC
X1
10.368MHz
C35
K0.033
C27
K0.1
C24
K0.1
C34
K0.1
C29
K0.068
C28
K0.068
+2.65V
R33
1K
D5
10K
R57
+2.65V
33K
R22
R67
39
C56
D10P
R78
180
C73
D10P
AN
T
DA1
C70
NC
C55
D10P
L3
33n
C71
NC
C58 1.8n
C57
1.8n
A202
1
R79
180
C54
2.7n
R66
39
A201
1
C72
C2P
C69
C2P
L1
4.7u
C67
K4.
7
IC3
5
RSSI
6
VCC_OC
7
GND
8
SYCL
9
SYDA
10 SYEN
11 GND
12
RXDSG
13
SYRI
14
GND
15
GND
16
GND
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
GND
31
GND
32
GND
33
RF1
34
GND
GND
1
GND
2
GND
3
TXDA
4
C65
C2P
C48
J33P
C43
D10P
VBACK
C30
K1800P
C36
K0.
1
C37
K0.1
C38
K0.1
100
R31
D9
4.7V(M)
D8
4.7V(M)
C66
C6P
C61
D10P
C86
NC
NC
C85
C1P
C80
C6P
C84
C1P
C83
C1P
C81
C2P
C82
C3P
1M
R59
C39
J100P
C42
C46
K0.1
C47
J100P
C45
K0.1
C44
K0.1
C90
D10P
L8
1.8n
C91 C1P
C92
NC
C68
K4.7
TP1
R46
NC
TP189
10
R24
2.2K
R27
10K
R26
Q7
NC
C16
A00
A01
A03
A04
A05
A06
A07
A09
A10
A12
A13
A15
A16
A17
A18
’SDA’
’SCL’
D0
K0.1
(14)
(15)
(10)
(11)
(11)
(12)
(13)
(3)
(4)
(5)
(6)
(2)
(7)
(8)
(9)
(1)
KX-TCD450RUM/RUT SCHEMATIC DIAGRAM (BASE UNIT)
ON-HOOK: 0V
OFF-HOOK: about DC 9.8V
OFF-HOOK: about DC 9.8V
ON-HOOK: 0V
OFF-HOOK: about DC 3.9V
OFF-HOOK: about DC 3.9V
: No Components
TX-AF
RX-AF
RX-DATA
10.368MHZ burst
peak
+3.1V
+3.1V
1V
FREQ 10.368MHZ
+2.65V DC
89
KX-TCD450RUM / KX-A145RUM / KX-TCD450R UT / KX-A145RUT
38 SCHEMATIC DIAGRAM (HANDSET)
R51
3.3K
IC3
1
A0
2
A1
3
A2
4
GND
5
SDA
6
SCL
7
WP
8
VCC
L1
47u
Q3
G
S
D
R16
0.3 1/3W
C5
K0.068
R15
180K
7
R
#
6
3
5
0
PROG
CANCEL
1
TALK
8
2
SP_PHONE
*
LEFT
C33
K0.1
C30
K0.
1
C31
0.1
C32
K0.1
R14
0.1
F1
9
INT
BOOK
REDIAL
R67
100
R68
100
GND
SCL
DL1
BATT
SDA
R13
10K
4
UP
DOWN
RIGHT
C52
K0.
1
IC2
1
A11
2
A9
3
A8
4
A13
5
A14
6
A17
7
WR
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
0E
C47 K0.068
C28
NC
C53
K0.1
470
R6
Red
LED17
NC
D21
TP5
C1
K0.1
Green
LED12
82
R43
Green
LED11
Green
LED13
Green
LED14
R23
15
R7
15
R22
15
R38
10K
R34
10K
R10 1.0K
R3 10K
R9
22K
R59 10K
R60 10K
C37
K0.01
DL2
R37 220K
C64
K0.22
C63
K0.22
C39
K0.22
C40
K0.22
R35
820K
R36
430K /1%
C46 K0.01
C42 K0.01
C43 K0.01
C44 K0.01
C45 K0.01
C2
K0.1
C16
K0.1
IC1
1
VDD
2
VSS
3
4
5
6
7
8
9
RXDSG
10
RXDA
11
SYEN
12
SYDA
13
SYCL
14
TXDA
15
PY.0
16
PY.1
17
PY.2
18
PY.3
19
PY.4
20
PAON
21
SYRI
22
VDD
23
VSS
24
ON
25
CDT
26
DCDCDRV
27
DCDCCMR
28
RESETQ
29
VSSO
30
LOAD
31
XTAL
32
VDDPM
33
VDDLQ
34
VDDBAT
35
VDDLR
36
CHARGESTART(P0.2)
37
VDDA
38
VSSA
39
HON
40
HOP
41
BREF
42
MICS
43
MICP
44
MICN
45
ADREF
46
ADRSSI
47
HS-DET/ADBAT(P0.4)
48
AD4N(P0.5)
49
AD4P(P0.6)/DSPOUT
50
P0.3/DSPIN
51
PX.0
52
PX.1
53
PX.2
54
A4
55
A5
56
A6
57
PX.3
58
PX.4
59
A7
60
A12
61
VDD
62
VSS
63
SUPEEP
64
I2DAT
65
I2CLK
66
MODE
67
R2
68
R1
69
VBACK/P0.7
70
A15
71
BSELO/A16
72
BSEL1/A17
73
A14
74
A13
75
VDDLI
76 A8
77 A9
78 P1.0
79 P1.1
80 P1.2
81 A11
82 A10
83 VSS
84 VDD
85 CSROQ
86 P0.0/RXD
87 P0.1/TXD
88 NC
89 NC
90 OERAQ
91 WRRAQ
92 CSRAQ
93 BSEL2/A18
94 D7
95 D6
96 D5
97 D4
98 D3
99 D2
77 A9
78 P1.0
79 P1.1
80 P1.2
81 A11
82 A10
83 VSS
84 VDD
85 CSROQ
86 P0.0/RXD
87 P0.1/TXD
88 NC
89 NC
90 OERAQ
91 WRRAQ
92 CSRAQ
93 BSEL2/A18
94 D7
95 D6
96 D5
97 D4
98 D3
99 D2
100 D1
TP3
Green
LED1
Green
LED2
Green
LED3
TP4
TP6
+4V
R11
56
C4
6.3V330
C9
6.3V330
Q11
Q5
Q1
Q7
J5
1
RS
2
CSB
3
SI
4
SCL
5
VDD
6
V4
7
V3
8
V2
9
V1
10
V0
11
VR
12
VOUT
13
CAP2-
14
CAP2+
15
CAP1-
16
CAP1+
17
VSS
18
RESTEB
C48 NC
C50 NC
C69
NC
Q8
D16
INH/RS
CS/CE
DISCLK
DISDATA
VDD
ADR11
ADR09
ADR08
ADR13
ADR14
ADR17
ADR16
ADR15
ADR12
ADR07
ADR06
ADR05
ADR04
ADR00
ADR01
ADR02
ADR03
ADR10
DAT01
DAT02
DAT03
DAT04
DAT05
DAT06
DAT07
DAT00
ADR18
CE
OE
WR
VDD
VDD
VDD
DISCLK
RSSI
SYRI
PY.4
PY.0
PY.1
PY.2
RXDA
SYEN
SYDA
SYCL
TXDA
ADR01
ADR02
ADR03
ADR18
DAT01
DAT02
DAT03
DAT04
DAT05
DAT06
DAT07
OE
WR
WR
ADR11
ADR10
ADR10
CE
ADR09
ADR08
ADR13
ADR14
ADR17
ADR16
ADR07
PX.4
PX.3
ADR06
ADR05
ADR04
PX.2
PX.1
PX.0
RXDSG
DAT00
DISDATA
PSEL
VDD
VDD
INH/RS
ADR15
ADR12
DRON
PY.3
ADR00
CS/CE
PY.0
PY.4
PY.2
PY.1
PX.3
PX.1
PX.2
PX.4
PX.0
PY.3
K5
K18
K17
K7
K19
K4
K16
K6
K9
K2
K3
K8
K25
K13
K14
K15
K24
K23
K22
K12
K20
K11
K1
K21
LCD BACKLIGHT
BATTERY+
J1
BATTERY-
J2
CHARGE+
CHARGE-
J3
J4
D0
A0
A1
A2
A3
DRON
(1)
(2)
(3)
(4)
(5)
(5)
(10)
(11)
(12)
(11)
(12)
(6)
(7)
(8)
(9)
(13)
(26)
~
(27)
(30)
(31)
~
2.65V
0V
2.65V
0V
4V DC
2.4V
Frequency 324KHz
4.3V
0V
0V
2.65V
2.65V
0V
2.65V
0V
90
KX-TCD450RUM / KX-A145RUM / KX-TCD450R UT / KX-A145RUT
C58 K0.068
POWER_KEY
C21D10P
56K
R18
D10P
C66
D10P
C25
33
R4
IC4
1
CD
2
FC2
3
FC1
4
VIN
5
VO1
6
VCC
7
GND
8
VO2
K1.0
C10
220K
R2
K0.1
C36
D10P
C65
K0.1
C13
K0.1
C8
D10P
C29
MIC
K0.47
C55
D10P
C27
K2.2
C60
SP+
JACK
1
GND
2
MIC1
3
MIC2
4
SP2
5
SP1
D10P
C26
22
R27
D10P
C34
K1500P
C24
68K
R17
K0.1
C12
D10P
C23
D10P
C68
D10P
C67
33
R5
D10P
C61
D10P
C41
D10P
C62
L4
0
D10P
C19
D10P
C38
D10P
C20 22
R28
470
R21
C15
K0.1
D10P
C17
C14
K0.1
470
R8
470
R24
D10P
C22
10K
R31
C57
K0.01
C49
K1.
0
C3
K0.068
C56
K0.1
K0.1
C59
K0.1
K0.1
L5
4.7u
R410
33
C407
NC
C54
NC
C111
J33P
C7
J27P
C6
C3P
A1
C404
NC
2.2K
R1
C421
NC
C420
NC
C403
C2P
C401
D10P
C402
K1.0
R411
2.
2
C405
K4.
7
C408
K4.7
C409
C2P
C422
C2P
C423
C2P
SP-
REV-
REV+
TP11
D20
C51
NC
POWER_ON
POWER_PM
R30
NC
4.7V(M)
D7
4.7V(M)
D9
100K
R19
100K
R20
C18
6.3V4.7
IC10
ALPS_RF_UGSE6
5 RSSI
6 VCC_OC
7 GND
8 SYCL
9 SYDA
6 VCC_OC
7 GND
8 SYCL
9 SYDA
10 SYEN
11 GND
12
RXDSG
13
SYRI
14
GND
15
GND
16
GND
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
GND
31
GND
32
GND
33
RF1
34
GND
GND
1
2
3
3
TXDA
4
K2.2
C11
4.7 R12
C424
NC
X1
10.368M
C35
6.3V10u
C70
J68P
MCLK
NC
C71
D19
TP15
SYDA
SYEN
TXDA
SYCL
SYRI
RSSI
DRON
PSEL
RXDA
RXDSG
MI C
RECIEVER
HEADSET JACK
SPEAKER
AMP
+
-
+
-
-
J13
J12
GND
GND
GND
400 s typically
2.5V
0.5V
0V
RX - DATA
TX - DATA
Frequency 10.368MHz
1V
TX-AF
RX-AF
1.2V DC IN TALK MODE
SPEAKER PHONE RX
BELL Signal
(1)
(2)
(3)
(4)
(5)
(5)
(10)
(11)
(12)
(11)
(12)
(6)
(7)
(8)
(9)
(13)
(26)
~
(27)
(30)
(31)
~
KX-A145RUM/RUT SCHEMATIC DIAGRAM (HANDSET)
91
KX-TCD450RUM / KX-A145RUM / KX-TCD450R UT / KX-A145RUT
39 SCHEMATIC DIAGRAM (CHARGER UNIT)
TP3
R2
27
TP4
D1
2
1
J1
pinL
DC_PLUG
22
Charge_minus
TP1
TP2
R1
Charge_plus
SCHEMATIC DIAGRAM (CHARGER UNIT)
92
KX-TCD450RUM / KX-A145RUM / KX-TCD450R UT / KX-A145RUT
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