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KX-TG5511UA/KX-TGA550RU/KX-TGA551RU
LCD_SDA
LCD_SCL
LCD_CD
LCD_RESET
LCD_CSB
LCD_SCL
LCD_CD
LCD_RESET
LCD_CSB
BATTERY
GND
GND
GND
CP+3.0V
CP+3.0V
C188
K1u
C70
D10p
D10p
GND
D21
D22
C71
D10p
D10p
GND
C113
D10p
D10p
D3
( )
GND
D4
( )
GND
GND
C72
D10p
GND
C73
D10p
GND
C814
3.3n
R806
220
GND
TXp
R805 47
GND
GND
VDD_PADRV
TXON
GND
GND
C808
100n
GND
PON
GND
BATTERY
GND
1
PSET
2
VCCS
3
PI
4
PIX
7
PSEL
8
POX
9
PO
10
VCC
11
GND
5
PRAMP
6
PAON
GND
TXn
PSEL
GND
GND
GND
GND
GND
RF_RXp
RXON
GND
GND
GND
RF_RXn
R807
220
C837
NC
GND
CN5
VSS
10
CN5
GND
1
CN5
RESETB
4
CN5
V0
11
CN5
VDD
8
CN5
SCLK
6
CN5
LCD_CSB
3
CN5
A0
5
CN5
OPT_PWR
2
CN5
VDDA
9
CN5
SID
7
CN5
GND
12
C152
k1000p
DA801
1
2
3
L801
27n
TP_ANT1
C861
3p
C826
2p
C103
100p
R53
3.3k
C106
( )
R54
10k
10k
GND
C105
100p
GND
GND
R51
470
470
GND
GND
GND
GND
C187
2.0p
C186
2.0p
R55
1k
R50
10k
C175
1u
R578
( )
GND
GND
GND
C806
3.3p
C805
3.3p
GND
R808
( )
VREFm
C74 D10p
C75
D10p
VREFm
R73
82
R74
82
D13
D14
RA40
10k
1
2
3
45
6
7
8
C172
K0.1u
RA800
1k
1
4
2
3
Q880
NC
NC
GND
GND
GND
Power_adj
C881
( )
R880
( )
GND
GND
GND
GND
RECEIVER
1
+
2
-
SP-PHONE_SPEAKER
1
+
2
-
C107
J33p
C809
10p
C811
10p
C812
10p
C819
10p
C822
10p
C825
10p
C827
10p
C880
( )
C104
10p
C580
10p
R52
1k
R802
82
C834
1.3p
GND
1
A0
2
A1
3
A2
4
GND
5
SDA
6
SCL
7
WP
8
VCC
C810
2p
C813
2p
L803
2.7n
L802
2.7n
C820
NC
C804
1.8p
C802
1.8p
C803
1.5p
R801 680
MIC AP1
1
2
C863
5p
C864
5p
LSRp
LSRn
MICp
MICn
LSRp
LSRn
LSRp
to LCD UNIT
㧔Monochrome 1.8inc FullDot 㧕
IC3
IC801
(1)
(2)
(3)
(2)
(3)
(4)
(6)
(5)
(8)
(9)
(9)
(10)
(11)
(7)
KX-TGA550/551 SCHEMATIC DIAGRAM (Handset_Main)
NC: No Components
RX_RF
TX_RF
TX _AF
RX-AF (Handset)
Sp-phone RX/Beep
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