Panasonic KX-TG2480BXS, Service Manual

Page: 84 / 94

28 SCHEMATIC DIAGRAM (BASE UNIT)
VCC
C352
NC
C511
K0.1
R124 33K
C801 K0.1
C806 K0.1
K1.0 C502
NC
C113
C553
K0.1
R123 NC
1K
R501
C144 K0.1
TXD
100
R612
C609
K0.1
C509
K0.1
C382
K0.01
DEMOD
C510
K0.1
1
INT0
2
CHG_CTL2
3
L1_BELL
4
L1_RL
Y
5
A
GPIO5
6
KEYS_F
7
L1_SZ
8
KEYS_D
9
KEYS_C
10
KEYS_B
11
KEYS_A
12
CHARGE_CTL
13
CHARGE_DET
14
CHG_LED
15
SPP_LED
16
VCC
17
GND
18
EGPIO0
19
EGPIO1
20
ER
OM_WP
21
KEYIN5
22
KEYIN4
23
KEYIN3
24
KEYIN2
25
KEYIN1
26
ER
OM_WP
27
ER
OM_CLK
28
ER
OM_D
A
T
A
29
SD
A
T
A(RF)
30
SLE(RF)
39
HSSPOUT
40
LOUT0
41
LOUT1
42
VREFO
43 DCIN0_OFF-HOOK
44
LIN0
45
LGS0
46
CIDO0
47
CIDIN0
48
CIDIP0
49 VCCA
50 DCIN1
51
LIN1
52
LGS1
53
CIDO1
54
CIDIN1
55
CIDIP1
56 GNDA
57 HSMIP
58
HSMIN
73
PD
WN
74
FLASH_RE
75
TX_D
A
T
A
76
MOD_EN
77
FLASH_SO
78
FLASH_SI
79
FLASH_CS
80
BGPIO6
81
RXEN
82
TXEN
83
RX_GAIN
84
RX_D
A
T
A
85
L1_LED
86
L2_LED
87
MSG/VM_LED
88
RF_RESET
89
RADIOEN
90
GND
91
VCC
92
L2_RL
Y
93
L2_BELL
94
L2_RL
Y
95
SHCTRL
96
L2_SZ
97
CGPIO5
98
T_CLK(JT
A
G
)
99
T_MODE_SEL(JT
A
G
)
100
T_D_IN(JT
A
G
)
101
T_D_OUT(JT
A
G
)
102
CGPIO7
109 SEG11
110 SEG10
111 SEG9
112 SEG8
113 SEG7
114 SEG6
115 SEG5
116 SEG4
117 SEG3
118 COM2
119 COM1
120 UART_TX
121 UART_RX
122 L1_RLY
123 DGPIO0
124 GND
125 VCC
126
CGPIO12
127
FLASH_SCK
128
INT1
72
RESET
71
GND
70
XIN
69
XOUT
68
VCCPLL
67
GNDPLL
66
VCCR
65
RSSI
63
NC
62
GNDR
61 MIP
60
MIN
59
VREF
104
CGPIO9
106 GND
107 VCC
108 SEG12
38
VCCP
A
37
SPOUTN
36
GNDP
A
35
SPOUTP
33
EGPIO15
105
CGPIO10
31
SCLK(RF)
32
SDIO(RF)
34
GND
64
VREFFR
103
CGPIO8
C590
NC
2.5V REG
1
VOUT
2
NC
3
GND
4
Cn
5
Cont
6
NC
7
NC
8
Vin
C618
K470P
NC
C611
NC C772
NC C770
NC C771
NC C774
NC C762
NC C763
C773 NC
NC C769
NC C768
NC C767
C778 NC
ANT1
39K
R805
K0.1
C812
150
R804
K0.1
C813
K0.1
C810
NC
C811
Q800
C804
C2P
R801
NC
13.824MHz
X801
C805
C2P
C554
K0.1
3P
C809
1.8K
R803
C591
K0.1
LGS1
R802
NC
INT0
C541
NC
URX1
UTX1
R543
4.7K
FVCC FGND
FCS FSO FSI
LED723
L2_LED
R723
390
C724
NC
NC
C550
UVCC1
UGND1
R334 1K
R504 NC
R505 NC
R506 NC
R503
NC
C512 K0.1
LOUT1
FRST
NC
FOR FLASH BOOT
1
RDY
2
RESET
3
WP
4
NC
5
NC
6
VCC
7
GND
8
NC
9
NC
10
NC
11
CS
12
BCLK
13
SI
14
SO
15
NC
16
NC
17
NC
18
NC
19
NC
20
NC
21
NC
22
NC
23
NC
24
NC
25
NC
26
NC
27
NC
28
NC
SHCTRL SLE RX_D
A
T
A
TX_EN ANT RF_RESET VBA
TT2
RX_EN RX_GAIN SCLK DMOD S
D
ATA
RSSI TX_D
A
T
A
OSC_IN GND SDIO
680
R807
560
R806
C803 10
RA501
4.7K
7
5
3
1
2
4
6
8
KIN4
NC C761
MOD_EN
PDN RST
URX2
UGND2
UVCC2
UTX2
JG2 JI2 JS2 JC2 JO2 JC1 JO1 JS1 JI1
C751 NC
C750 NC
C722
NC
C723
NC
C720
NC
R709
NC
R711
NC
ANT2
ANTG2 ANTG1
C608
NC
C607
NC
NC
C802
10u/6.3V
C560
L501
R333 47K
C176
NC
C142
NC
C318
K0.1
C317
330u/6.3V BCK
LED724
IN USE LED
R724
220
RXD
TXD2
LED720
CHARGE_LED
R720
270
C606
330u/4.0V
150
R516
+ - - +
NC
1
2
3
GND
4 5
6
7
8
VCC
IO1
W_VDD
W_GND
RSSI1
INT1
TTS2
NC
C741
C228 K1500P
120K R228
C508
NC
100K
R227
C227
K470P
R710
NC
16K
1
A0
2
A1
3
A2
4
VSS
5
SDA
6
SCL
7
WP
8
VCC
R712
10K
C711 K0.1
C712 J120
2
2
1
1
C713
NC
R507
NC
R706
NC
R713
1K
LED722
L1_LED
R722
390
TTS1
R570 47K
NC
C599
NC
C592
R592
NC
R593
NC
R594
NC
R595
NC
R591
NC
NC
Q591
NC
Q592
KIN3 KIN2 KIN1
C143
K1000P
RADIO_EN
RX_EN
PDN
RST
RF UNIT I/F PAD
VCC 3.3V
AC_DOWN
IC501
IC601
IC701
IC591
IC700
(1)
(7)
(8)
(9)
(10)
(6)
(5)
(4)
(3)
(2)
(13)
(14)
(15)
(16)
(17)
(18)
(19)
(20)
(21)
(22)
(23)
(11)
(12)
2.5V
NC : No Components
84
KX-TG2480BXS / KX-TGA248BXS