76
KX-TG4753B/KX-TG470B/KX-TGA405B
14.3. Schematic Diagram (Base Unit_Operation)
PCB
CARBON_TEST
CT1
CT2
ANS
1
2
BT_HS_LED(G)
CELL2_LED(G)
LCD_RST
NC1
CELL2_LED(R)
LED907
VLED
STOP
1 2
KEYIN2
RPT
1 2
MSG1
1 2
KEYIN1
MSG3
1 2
KEYIN3
LCD_SCL
GND
LCD_SID
NC2
ERASE
1 2
UP
1 2
SKIP
1 2
*LED914
NC
A
K
LCD_GND
BT_HS_LED(R)
ANS_LED
LED905
CELL1_LED(G)
CELL1_LED(R)
KEYS_E
LCD_VDD
KEYS_C
MSG4
1 2
C901
1u
16V
NC3
KEYS_D
MSG2
1 2
GND
MEG_LED
LOCAT/INT
1 2
GND
LED908
GND
*LED912
NC
A
K
LCD_CD
*LED916
NC
A
K
DOWN
1 2
CN901
1
2
3
4
5
6
7
8
9
10
11
12
LCD_BLT
LED906
LCD_CS
C903
1u
6.3V
C902
1u
25V
LED901
RED
A
K
LED902
RED
A
K
*LED911
NC
A
K
*LED915
NC
A
K
*LED913
NC
A
K
R901
270
R902
270
R903
270
R904
270
FOR TG773x,TG473x
VDD2
V0
1
13
GND
SDA
13
VSS
XV0
1
VG
SCLK
VDD1
10
/CSB
/RSTB
A0
10
10pin:TG4731
13pin:TG7731
10pin:TG4731
13pin:TG7731
KX-TG4753 SCHEMATIC DIAGRAM (Base Unit_Operation)
NC: No Components