Schematic Diagram (Handset_Main) - Panasonic KX-TG4732B Service Manual

KX-TG4732B/KX-TG4733B/KX-TG4734B/KX-TGA470B

14.4. Schematic Diagram (Handset_Main)

!
F1
BAT+
2.5A
BAT-
Battery
GND
CHG+
CHG+
CHARGE
Terminal
CHG-
GND GND GND
GND
CP3V
UTX
URX
GND
GND
GND
RIGHT DOWN
FLASH
AST
0
SP
LEFT
SHARP
SOFT_B SOFT_C SOFT_A
CP3V
BELL LED
(AMBER)
GND GND
*Q5
GND GND
NC: No Components
Downloaded from www.Manualslib.com
Charge Current
VBAT VBAT
GND GND GND
When on Charge
Q2
C27 1s
1000p
R2
30k
R8
3.3
Q3
Q4
Q9
GND
GND
CHG_CTRL
CHG_DET
VBAT
CP4V
*IC4
6
1
VOUT CP
5
2
GND VCC
3 4
SHD CN
4.0V
UP
TALK OFF
KIN_5
7 4 1
KIN_4
8 5 2
KIN_3
9 6 3
KIN_2
VOL_DW VOL_UP
RE1
RE1
KIN_1
CP4V
CP3V
LCD_BACKLIGHT
LCD BACKLIGHT KEY BACKLIGHT
[White]
(AMBER)
+
WLED
-
GND GND
Q6
GND GND
manuals search engine
GND GND GND GND GND
CHG_CUR
CP3V
RA5
3.3k 8
EEP_WP EEP_WP E_WP
7
EEP_SCL EEP_SCL E_SCL
6
EEP_SDA EEP_SDA
E_SDA
5
* Start Monitor
* When "SFR" command
is executed, 13.824 MHz
frequency will be output.
CP3V
TDI
TMS
CHG_CTRL
TCK
TDO
CHG_DET
GND_J
CP3V
GND
EEP_SCL
67
GPIO[0]/SCL_IIC
EEP_SDA
68
GPIO[1]/SDA_IIC
UTX EEP_WP
69
GPIO[2]
URX HEADSET_DET
70
GPIO[3]
STB_D
71
GPIO[4]
LCD_RESET
72
GPIO[5]
73
GPIO[6]
LCD_SID
74
GPIO[7]
LCD_SCL
75
GPIO[8]
C40
76
VDDIO1
LCD_CS
k0.1u 77
GPIO[9]
GND
LCD_CD
78
GPIO[10]
KIN_1
79
GPIO[11]
KIN_2
80
GPIO[12]
KIN_3
81
GPIO[13]
KIN_4
82
GPIO[14]
KIN_5
83
GPIO[15]
84
GPIO[16]
STB_A
85
GPIO[17]
86
VDDIO2
STB_B
87
GPIO[18]
URX
88
GPIO[19]
89
GND
UTX
CP_OFF STB_C
STB_E
CP_OFF
BELL_LED
KEY_LED
FLASH:1.8V / ROM:1.2V
1.2V
(AMBER)
B/W LCD Unit
72
C69
0.1u
1
VCC
A0
2
WP A1
32K
3
SCL A2
4
SDA VSS
*IC3
GND
TO RF BLOCK
TXON
TXn
TXp
RXp
RXn
RXON
VDDC VBAT
GND
C46 10p
C45 C43
K0.1u K0.1u
RSTN
RTCK
GND
TXn
TRSW_n
ANT
VCC_FE
VDD_IF
VCC_IF
VDD_APU
VBAT_APU
XIN
XOUT
IC1
DCINS
PWM0
PWM1
SPOUTP
VCCPA
SPOUTN
LOUT
HSSPOUTP
GND
MPWR
HSMIP
HSMIN
MIP
R24
10
C29
1u
GND (1608)
GNDA
CP3V
3.0V
VBAT
VDDC
VDDC
CHG_CUR
3.0V
CP3V
GND
VBAT
44
43
42
C22
41
C25 K2.2u
k0.1u
40
C23
39
C26 10u
0.1u
38
C24
(1608)
37
1u (1)
36
35 (2)
CHG_DET
34
VBAT
33
CHG_CTRL
32
31 (3)
30
C68 (4)
29
1u
(5)
28
(1608)
27 (6)
26
GND
25 (7)
24
23
(8)
GNDA
(9)
GNDA
(10)
GNDA GND
(11)
(12)