Panasonic KX-TG7207UAJ / KX-TG7207UAM / KX-TG7207UAS / KX-TG7207UAT / KX-TG7208UAM / KX-TG7208UAS / KX-TG7208UAT / KX-TGA720UAJ / KX-TGA720UAM / KX-TGA720UAS / KX-TGA720UAT Service Manual ▷ View online
61
KX-TG7207UA/KX-TG7208UA/KX-TGA720UA
11.8. How to Check the Handset Speaker or Receiver
1. Prepare the digital voltmeter, and set the selector knob to ohm meter.
2. Put the probes at the speaker terminals as shown below.
2. Put the probes at the speaker terminals as shown below.
11.9. Frequency Table (MHz)
Note:
Channel No. 10: In the Test Mode on Base Unit and Handset.
BASE UNIT
HANDSET
Channel No
Transmit Frequency
Receive Frequency
Transmit Frequency
Receive Frequency
1
1897.344 1897.344 1897.344 1897.344
2
1895.616 1895.616 1895.616 1895.616
3
1893.888 1893.888 1893.888 1893.888
4
1892.160 1892.160 1892.160 1892.160
5
1890.432 1890.432 1890.432 1890.432
6
1888.704 1888.704 1888.704 1888.704
7
1886.976 1886.976 1886.976 1886.976
8
1885.248
1885.248
1885.248
1885.248
9
1883.520 1883.520 1883.520 1883.520
10
1881.792 1881.792 1881.792 1881.792
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KX-TG7207UA/KX-TG7208UA/KX-TGA720UA
12 Schematic Diagram
12.1. For Schematic Diagram
12.1.1. Base Unit (Schematic Diagram (Base Unit))
Notes:
1. DC voltage measurements are taken with voltmeter from the negative voltage line.
2. The schematic diagram may be modified at any time with the development of new technology.
12.1.2. Handset (Schematic Diagram (Handset))
Notes:
1. DC voltage measurements are taken with an oscilloscope or a tester with a ground.
2. The schematic diagram may be modified at any time with the development of new technology.
2. The schematic diagram may be modified at any time with the development of new technology.
12.1.3. Charger Unit (Schematic Diagram (Charger Unit))
Notes:
1. DC voltage measurements are taken with voltmeter from the negative voltage line.
2. The schematic diagram may be modified at any time with the development of new technology.
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KX-TG7207UA/KX-TG7208UA/KX-TGA720UA
Memo
64
KX-TG7207UA/KX-TG7208UA/KX-TGA720UA
12.2. Schematic Diagram (Base Unit)
TX_AF
TX DATA
RX DATA
0 V
2.5 V
10.368 MHz
3.3 V
Q5
3
2
1
+2.5V
+3.3V
C101
NC
R102
NC
R103
NC
NC
R110
NC
NC
R112
1k
+2.5V
D10p
C118
C122
NC
DA1
1
2
3
L5
NC
ANT_1
ANT_2
R109
180
C125
D10p
R98
NC
R99
NC
R63
2.2k
2.2k
+2.5V
C50
K0.01u
+2.5V
+1.8V
+2.5V
SP+
SP-
+3.3V
R91
NC
R88
NC
2.2k
R62
C84
NC
R92
NC
NC
TP10
ANT
A_1
A_2
CN5-1
GND
CN5-6
ROW0
CN5-3
ROW1
CN5-4
ROW2
CN5-5
KEY0
CN5-10
KEY1
CN5-9
LED1
CN5-8
VDD
CN5-7
LED2
CN5-2
GND
12
R21
27
R22
K1u
C22
C102
NC
*C16
NC
C17
K2.2u
K0.1u
*C28
L4
NC
CN5
NC
NC
1
GPIO4/
PCM_DI
2
GPIO5/PCM_DO
9
SPI_DI
3
GPIO6/PCM_CLK
4
GPIO7/PCM_FSC
5
VDD1
6
VDDIO1
7
CLK
8
*PF
10
SPI_DO
11
SPI_CLK
12
SPI_EN
13
AVD1
14
GPO9/PAOUTp
15
VDDPA
16
GPO8/PAOUTm
17
GPIO0
18
GPIO1
19
VDD2
20
VDDIO2
21
GPIO2
22
GPIO3
23
*RST
24
AVD2
25
*LSR
26
LSRp
27
MICh
28
*MIC
29
VREFm
30
VBUF
31
MICp
32
VREFp
33
Fin
R120
NC
R101
NC
R115
NC
R114
NC
+3.3V
Q21
NC
NC
1
E1
2
B1
3
C2
4
E2
5
B2
6
C1
+3.3V
R122
NC
D14
NC
A
K
D13
NC
A
K
D9
AK
Q24
NC
B
C
E
NC
R132
R118
NC
180
R106
C158
NC
SP-
SP+
10u
C27
50V
50V
100k
R23
+2.5V
*C25
K0.01u
Q25
NC
NC
R141
NC
R134
NC
27k
R18
8.2k
R19
100k
R27
470k
R28
C24
NC
R82
NC
C14
K4700p
RA1
NC
1
2
3
4
5
6
7
8
C159
NC
NC
+1.8V
1
GND1
2
ANT2
3
VCCPA
4
GND2
5
GND3
6
VDD_ANA
7
VDD_DIG
8
GND4
9
SYRI
10
GND5
11
GND6
12
SYEN
13
SYDA
14
SYCL
15
GND7
16
RXDA
17
GND8
18
TXDA
19
GND9
20
*RESET
21
ANT1
22
GND10
23
GND13
24
GND12
25
TXPO-SET
26
GND14
27
GND15
28
GND16
29
GND17
30
GND18
31
A_1
32
GND11
R142
NC
R143
NC
R144
NC
+2.5V
+2.5V
C23
K0.22u
C51
K0.1u
K0.1u
C80
NC
C81
NC
C82
NC
C83
NC
NC
C85
NC
C89
NC
NC
C88
NC
C90
C111
NC
C114
NC
C116
NC
NC
C129
NC
C132
NC
C144
NC
NC
C155
C113
NC
C115
NC
C131
NC
C119
NC
C121
NC
C130
NC
J150p
C126
K1n
C127
C133
NC
C141
K0.22u
C161
NC
NC
C109
NC
C92
NC
C93
NC
C94
NC
C95
NC
NC
C103
D10p
C142
NC
C160
NC
C106
D10p
C145
NC
C146
NC
C91
NC
NC
C104
NC
C148
NC
C147
L21
J22p
1.5n
L7
C162
C3p
500mW
1
R125
C124
D7p
D7p
C117
C163
NC
100
R116
330
R111
Q10
NC
B
E
C
LOW_RAD
R119
NC
C112
J22p
D10p
C110
NC
1
SI
2
SCK
3
*RESET
4
*CS
5
*WP
6
VCC
7
GND
8
SO
K390p
C128
C108
M4.7u
*C15
K1u
470
*R30
2.2k
*R20
*C18
NC
820
*R31
1
A0
2
A1
3
A2
4
GND
5
SDA
6
SCL
7
WP
8
VCC
47k
*R24
120
R29
100
R131
SK
TDO
RESET
LE
TAMIC_CSn
SPICLK
SPIDI
SPIDO
MESSAGE
TAM_RSTn
SPICLK
SPIDO
SPIDO
TAM_CSn
SPIDI
KEY0
KEY1
TAM_RSTn
ROW2
ROW1
ROW1
TAM_CLK
RDI
SIO
ANSWER_ON
WP
TAM_RSTn
WP
ROW0
RFCLK
LOW_RAD
Flat-cable
IC8
IC10
RF unit
IC11
*IC5
EEPROM
(1)
(2)
(3)
(4)
(5)
(8)
(9)
(11)
(10)
(6)
(7)
NC: No Components
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