Schematic Diagram (Handset_Main) - Panasonic KX-TG7841S Service Manual

KX-TG7841/KX-TG7842/KX-TG7843/KX-TG7844/KX-TG7845/KX-TG365SK/KX-TG7871/KX-TG7872/KX-TG7873/KX-TG7874/KX-TG7875/KX-TG385SK/KX-TGA680

14.7. Schematic Diagram (Handset_Main)

!
Charge Current
BAT+ F1
2.5A
GND GND
BAT-
Battery
GND
Q10
R10 1.0
Q11
Battery_ON R13
Q12
10k
CHG+
GND GND
CHG+
CHARGE
Terminal
CHG-
GND GND GND
GND
VBAT CP3V
VBAT
UTX
URX
GND
GND
GND
UP
RIGHT DOWN TALK
SP AST 7 4
8 5 2
NR 0
9 6 3
FLASH SHARP
SOFT_C SOFT_A
LEFT
LCD BACKLIGHT
(WHITE)
GND
NC: No Components
VBAT
GND GND GND GND
When on Charge
Q2
C27
1000p
R2
1s
30k
R8
4.3
Q3
Q4
Q9
GND GND
CHG_CTRL
CHG_DET
VBAT
CP4V
IC4
1 6
VOUT CP
2 5
GND
VCC
4
3
SHD CN
4.0V
Battery_ON
OFF
KIN_5
1
KIN_4
KIN_3
KIN_2
KIN_1
CP4V CP3V
CP4V
KEY BACKLIGHT
(AMBER)
GND
Q6
GND
CHG_CUR
CP3V
C69
0.1u
RA5
1
8
3.3k VCC A0
EEP_WP
7 2
WP A1
32K
EEP_SCL
6 3
SCL A2
EEP_SDA
5 4
SDA VSS
IC3
GND
CP3V
GND
TDI
TMS
CHG_CTRL
TCK
TDO
CHG_DET
GND_J
CP3V
RTCK
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]
LCD_CD GND
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
CP_OFF
GND
UTX
STB_C
STB_E
CP_OFF
KEY_LED
FLASH:1.8V / ROM:1.2V VDDC
1.2V
OTP
To B/W LCD Unit
GND
80
* Start Monitor
* When "SFR" command
is executed, 13.824MHz
frequency will be output.
TO RF BLOCK
TXn
TXp
RXp
RXn
VDDC VBAT
C46 10p
C45 C43
K0.1u K0.1u
RSTN
GND
44
TXn
43
TRSW_n
42
ANT
41
VCC_FE
40
VDD_IF
39
VCC_IF
38
VDD_APU
37
VBAT_APU
36
XIN
35
XOUT
*IC1
34
DCINS
33
PWM0
32
DCX
PWM1
31
SPOUTP
30
[MASK] VCCPA
29
SPOUTN
28
LOUT
27
HSSPOUTP
GND
26
MPWR
25
HSMIP
24
HSMIN
23
MIP
R24
10
C29
GNDA
1u
GND
CP3V
3.0V
3.0V
GNDA
VBAT
VDDC
CHG+
CHG_CUR
CP3V
C91
K1u
16V
GND
C22 C25
K2.2u
k0.1u
C23
C26
0.1u
C24
10u
(1608)
1u (1)
(2)
(3)
(4)
(5)
C68
(6)
1u
(7)
(8)
GND
(9)
(10)
GNDA
(11)
RA4
3.3k
GNDA GND
(12)
(13)
(14)