KX-TG7205RUJ, KX-TG7205RUM, KX-TG7205RUS, KX-TG7205RUT, KX-TG7206RUM, KX-TG7206RUS, KX-TG7206RUT, KX-TGA720RUJ, KX-TGA720RUM, KX-TGA720RUS, KX-TGA720RUT (serv.man2) - Panasonic Telephone Service Manual Supplement (repair manual). Page 5

Read Panasonic KX-TG7205RUJ / KX-TG7205RUM / KX-TG7205RUS / KX-TG7205RUT / KX-TG7206RUM / KX-TG7206RUS / KX-TG7206RUT / KX-TGA720RUJ / KX-TGA720RUM / KX-TGA720RUS / KX-TGA720RUT (serv.man2) Service Manual Supplement online

5
KX-TG7205RU/KX-TG7206RU/KX-TGA720RU
2 CHANGE
2.1.
Schematic Diagram (Base Unit)
[Changed from original section “12.3. Schematic Diagram”]
0 V
0.7 V
TX DATA
RX DATA
25 mV p-p
1.8 V
2.5 V
CLK
J104
J103
J102
R76
1k
R81
3.3k
+1.8V
D12
15
R72
VDD1
VDD2
VDD3
+3.3V
120
R38
200
R39
4
Fin
1
ADJ/GND
3
Input
2
Output
+8.0V
1k
R79
1k
R80
K1u
C70
3.3M
R73
100
R75
TP23
10k
R74
10k
R77
10k
R78
D10p
C37
3.3k
R71
3.3k
R117
0
R97
C31
K2.2u
D22
22V
D23
R126
NC
Q22
NC
R127
NC
Q23
NC
NC
R128
+2.5V
10k
R129
1k
R130
TP16
TP15
330u
C36
C32
100u
16V10u
C71
10u
C64
16V
SW1
1
2
R140
NC
C7
NC
C8
NC
PCM_FSC
PCM_CLK
PCM_DOUT
PCM_DIN
0
L22
C48
NC
C59
K0.1u
C60
K0.1u
C61
K0.1u
C65
K1u
C73
K0.1u
C74
K0.1u
C75
K0.1u
C68
K1u
D10p
C69
K0.22u
C72
C156
NC
K1n
C157
X1
1
3
2
L9
390
C67
K0.1u
TP16-sub
TP15-sub
1W
3.9
R55
1W
3.9
R56
1W
3.3
R57
CHARGE
US1
Q8
Q9
B
E
C
R148
NC
K1n
C96
12
R133
C63
9p
D10p
C164
D10p
C165
D10p
C167
D10p
C168
150
R149
0
R150
D10p
C30
C62
27p
1
*INT1/P11
2
VDDIO1
3
VDD1
4
VSS1
5
SDA1/P25
6
SCL1/P24
7
*INT5/VDDE/P15
8
*INT2/P12
9
AVD
10
AVS
11
CAP
12
Xtal1
13
VSSRF
14
RFCLKp
15
RSSI/RFCLKm
16
VDDRF
17
RFCLKd
18
TDO
19
RDI
20
SK
21
PD1/SIO
22
LE
23
P31/PD1
24
P32/PD2
25
P33/PD3
26
P34/PD4
27
TDOD/P35/PD5
28
P36/PD6
29
VSS2
30
VDDIO2
31
VDD2
32
PCM_FSC/*INT0/P10
33
P00/UTX
34
P01/URX
35
P02/JTIO
36
P03/SDA2
37
P04/SCL2
38
P05/SPICLK/PCM_CLK
39
P06/SPIDO/PCM_DOUT
40
P07/SPIDI/PCM_DIN
41
VSS3
42
VDD3
43
P23/ADC1
44
P17/CHARGE/INT7
45
*RST
46
VBAT1
47
LDO1_CTRL
48
LDO2_CTRL
49
LDO1_
Sense
50
AV
S
2
51
AV
D
2
52
*CIDIN
53
*LSR/REF
54
LSRp/REF
55
RINGING
56
*MIC/CIDOUT
57
VREFm
58
AG
N
D
59
MICp
60
CIDINp
61
P14/*INT4
62
P13/*INT3
63
ADC2
64
ADC0
TAM_CSn
T
A
MIC_CSn
SPIDI
SPIDO
SPICLK
T
A
MIC_CSn
RO
W
0
RESET
LE
SIO
SK
RDI
TDO
RFCLK
LO
W_RAD
TAM_CLK
RO
W
1
RO
W
2
KEY0
KEY1
WP
RO
W
0
Charge +
Charge -
GND
JTAG
RX
TX
IC1
*IC7
BBIC
(4)
(5)
(8)
(9)
(6)
(7)

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