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KX-TG8201CB/KX-TG8202CB/KX-TGA820CB
12.2. Schematic Diagram (Base Unit)
R125
2.2
3.3 V
+3.3V
Q10 NC
+2.5V
+1.8V
10.368 MHz
2.5 V
0 V
R142
RFCLK
NC
LE
SK
+2.5V +1.8V
25
16
*LSR
GPO8/PAOUTm
26
15
LSRp
VDDPA
27
14
MICh
GPO9/PAOUTp
IC8
28
13
*MIC
AVD1
29
NC
12
VREFm
SPI_EN
30
11
Fin
VBUF
SPI_CLK
31
10
MICp
SPI_DO
32
9
VREFp
SPI_DI
R82
33
NC
ANSWER_ON
NC: No Components
ANT_1
ANT_2
A_2
L7
1.5n
ANT
C122
1p
1
26
GND1
GND14
2
25
ANT2
TXPO-SET
3
24
GND12
VCCPA
4
23
GND13
GND2
IC10
5
22
GND10
GND3
6
21
VDD_ANA
RF UNIT
ANT1
7
20
VDD_DIG
*RESET
8
19
GND9
GND4
9
18
TXDA
SYRI
10
17
GND5
GND8
+2.5V
R143
RX DATA
NC
+3.3V
SP-
SP+
SP-
SP+
1
C144
2
NC
TAM_RSTn
3
4
Flash memory
TAM_CSn
SPICLK
TAMIC_CSn
SPIDO
SPICLK
SPIDI
SPIDI
SPIDO
R120
Q21
NC
R119
MESSAGE
NC
KEY1
KEY0
ROW2
ROW1
ROW0
R30
82
A_1
LOW_RAD
LOW_RAD
Q24
C
B
E
NC
R112
RESET
1k
TX DATA
TP10
R111
TDO
330
SIO
+2.5V
R144
NC
1
2
3
4
IC11
NC
+3.3V
8
SI
SO
7
SCK
GND
6
*RESET
VCC
R88
5
*CS
*WP
NC
R91
NC
NC
CN5
NC
+2.5V
+3.3V
Flat-cable
CN5-2
GND
CN5-7
LED2
CN5-8
VDD
CN5-9
RA1
LED1
D13 NC
CN5-10
8
1
KEY1
7
2
K
A
CN5-5
6
3
KEY0
K
A
CN5-4
R141
5
4
D14 NC
ROW2
NC
NC
CN5-3
ROW1
CN5-6
ROW0
CN5-1
GND
for TG7220/8220
64
Q5
C18
C155
NC
10p
C22
R29
R23
R20
56
100k
2.7k
1u
R27
+2.5V
100k
TX_AF
R116
390
+2.5V
*IC5
32K EEPROM
8
A0
VCC
7
A1
WP
6
A2
SCL
5
GND
SDA
EEPROM
+2.5V
Q25
NC
for TG7220/8220
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
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Troubleshooting
