Read Panasonic KX-TCD205UA / KX-TCD207UA / KX-TCA120UA Service Manual online
39 SCHEMATIC DIAGRAM (HANDSET)
C99
NC
(1005)
+1.8V
9
C97 D10P
R20
1K
INT
K0.1
C23
(1005)
C82
NC
(2125)
L4
10uH
BATTERY
R93
NC
(1005)
K0.1
C24
(1005)
UTX
VDD3
D1
C4
D10P
R81
4.7
(2125)
8
IC1
1 INT1n/P1_1
2 VDDIO
3 VDD
4 VSS
5 LED1/PWM0/P2_0
6 LED2/PWM1/P2_1
7 LED3
8 LED_BIAS/P3_6/PD6
9 SDA1/P2_5
10 SCL1/P2_4
11 INT5n/VDDE/P1_5
12 INT2n/P1_2
13 AVD
14 AVS
15 CAP
16 Xtal1
17 VSSRF
18 RFCLKp
19 RSSI/RFCLKm
20 VDDRF
21
RFCLKd
22
TD
D
23
RD
I
24
SK
25
PD1/SIO
26
LE
27
P3_1/PD1
28
P3_2/P2D
29
VSSPA
30
PAOUTm
31
VDDPA
32
PAOUTp
33
VSSPA
34
P3_3/PD3
35
P3_4/PD4
36
TDOD/P3_5/PD5
37
VSS
38
VDDIO
39
VD
D
40
40:PCM_FSC/INT0n/P1_0
41
P0_0/UT X
42
P0_1/RTX
43
P0_2/JTIO
44
P0_3/SDA2
45
P0_4/SCL2
46
P0_5/SPICLK/PCM_CLK
47
P0_6/SPIDO/PCM_DOUT
48
P0_7/SPIDI/PCM_DIN
49
VSS
50
VDD
51
P2_3/ADC1
52
P1_7/CHARGE/INT7
53
RSTn
54
DC_stab
55
DC_I
56
DC_CTRL
57
DC_sense
58
VBAT1
59
LDO1_CTRL
60
LDO2_CTRL
61
61:P1_6/PON/INT6
62
62:P2_6/stop_charge
63
63:LDO1_Sense
64
AVS2
65
AVD2
66
LSRn/REF
67
LSRp/REF
68
MICn
69
VREFm
70
VBU
F
71
AGND
72
MICp
73
VREFp
74
P3_0
75
P1_4/INT4n
76
P1_3/INT3n
77
P2_2/CLK100
78
78:AVS_sense
79
ADC3
80
ADC0
C34
K1.0
J4
1
CHARGE-
CLEAR
C30
K1.0
URX
C58 K0.1
R87
180
(1005)
IC3
1
A0
2
A1
3
A2
4
VSS
5
SDA
6
SCL
7
WP
8
VCC
C121
K1000p
Q3
BAT
R63
10K
(1005)
RIGHT
R72
1K
(1005)
C71
D10P
(1005)
X1
10.368MHz
Q1
G
S
D
REDIAL
Q10
1
R88
180
(1005)
C104
K1.0
K0.1
C72
(1005)
C5
6.3V10
J100P
C113
J100P
C107
TP21
R82
100
JTAG
+2.5V
K0.1
C120
(1005)
R64
10K
(1005)
C57
6.3V330
VDD1
C96
NC
(1005)
J100P
C93
(1005)
VDD2
7
J100P
C112
(1005)
C41
NC
C40
6.3V10
L8
0
(2125)
GND
*
D10P
C91
(1005)
R57
68
C35
K1.0
F1
5.6nH
C33
K1.0
+2.5V
5
C1
4V330
6
L1
47uH
2
R73
100K
Q9
R61
1K
(1005)
C115
D10P (1005)
+1.8V
R91
100K
(1005)
R60
100 (1005)
C8 K0.22
R1
0.1R/0.1W
(2125)
C98
K4.7
C18
K1000P
(1005)
K0.1
C21
(1005)
K0.1
C119
(1005)
Q2
R
C52
K0.1
J2
1
BATTERY-
R89 180
(1005)
UP
Q11
C108
D10P
(1005)
R6
10K
(1005)
S1
POWER
D7
0
+2.5V
4
L5
10uH
C32
K1.0
C27
K1.0
+1.8V
3
R83
0
(2125)
J100P
C94
(1005)
R5
470
D6
R43
0.1R/0.1W
(2125)
C3
K0.1
(1608)
R69 F820K
Q4
DOW
N
K0.1
C20
(1005)
K0.1
C68
(1005)
TALK
TP20
J100P
C111
(1005)
R21
1K
C114
D10P (1005)
SOFT_A
C39
K1.0
+2.5V
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
R94
NC
(1005)
POWER
K0.1
C19
(1005)
LEFT
Q5
NC
C102
(1005)
J3
1
CHARGE+
R39
10K
(1005)
R47
5.6K
#
C31
K1.0
R7
220K
(1005)
C28
K1.0
R65
NC
R95
0
K0.1
C37
(1005)
J1
1
BATTERY+
R46
5.6K
R96 10K
(1005)
MAIL
SOFT_C
R12
39K
K0.1
C22
(1005)
R70
F430K
R90
680K
C6
D8P
C7
J15P
R19
5.6M
K0.01
C118
R40
10K
(1005)
NC
D9
C122
D10P
(1005)
R92
NC
R99
NC
(1005)
R100
NC
(1005)
R101
0
(1005)
DC_CTL
STOP_CHARGE
DC_I
COL2
ROW
0
ADC3
ROW3
ROW1
COL3
AVS_sense
ROW2
STOP_CHARGE
URX
COL4
UTX
LCD_CSB
JTAG
LCD_SCL
CHARGE
LCD_SI
COL5
LCD_SI
LCD_SCL
LCD_CSB
LCD_RS
LCD_RS
RESET
JTAG
CHARGE
SIO
ROW3
URX
DC_I
UTX
DC_CTL
LDO1_CTRL
SK
ROW1
LDO2_CTRL
TDO
ROW
0
ROW
2
LE
LCD_RESET
RDI
AVS_sense
COL1
RSSI
ADC3
COL2
COL0
COL5
LCD_RESET
COL4
COL3
LDO2_CTRL
COL1
LDO1_CTRL
COL0
RFCLK
BBIC
(5)
(3)
(4)
(4)
(2)
(1)
(6)
(7)
(7)
NC : No Components
EEPROM
115kHz (TALK mode)
(When on charge)
1S
+3.3V
+2.5V
25mV p-p
0V
0.7V
TX DATA
RX DATA
Charge Current
98
KX-TCD205UA / KX-TCD207U A / KX-TCA120UA
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