Schematic Diagram (Handset) - Panasonic KX-TG8201CB Service Manual

KX-TG8201CB/KX-TG8202CB/KX-TGA820CB

12.3. Schematic Diagram (Handset)

Charge Current
J1 F1
5.6n
L24
R47
J2
NC
5.6k
R46
5.6k
TP20
J3
L4
NC
J4
TP21
Q5
+2.5V
R61
UTX
1k
R62
URX
1k
GND
JTAG
R63
100
COL0
COL1
COL2
COL3
up
Push
COL4
COL5
+4.2V
Q7
NC: No Components
Backlight On 4.0V
Backlight Off 3.5V
BAT BATTERY
+4.2V VDD3
D1
L1
47u
Q1
R2
68
(Talk Mode)
Q4
D7
Q9
(When on charge)
1s
+2.5V
UTX
URX
R183
ROW1
C19 1u
MIDI_CS
C24 K0.1u
JTAG
LCD_BACK
LCD_CSB R106
RESET
MIDI_SDA
MIDI_SCL
LCD_CD R107
ROW2
C20
K0.1u
C25
K0.1u
BATTERY +3.3V
SW1
8 R
1 4
2 5
3 6
7
L down
CL1
300mVp-p
CL2
0.65V
0V
+2.5V
3.3V
Q23
VDD4 +3.3V
2.5V
+2.5V
Q3
384kHz
except RU/UA
R167 : 0
R168 : NC
+2.5V
R201
for RU/UA
R167 : NC
100k
R168 : 0
C30
R15
K0.1u
3.3k
C168
K0.1u
R196 0
+1.8V +2.5V
10k
1
*INT1/P11
2
VDDIO1
3
VDD1
4
VSS1
5
LED1/PWM0/P20
100
6
LED2/PWM1/P21
7
LED3
8
LED_BIAS/P36/PD6
9
IC1
SDA1/P25
10
SCL1/P24
100 11
BBIC
*INT5/VDDE/P15
12
*INT2/P12
13
AVD
14
AVS
15
CAP
16
Xtal1
17
VSSRF
18
RFCLKp
19
RSSI/RFCLKm
20
VDDRF
TX DATA
RX DATA
66
1.8V
+1.8V
VDD1
VDD2
Q2
+1.8V
POWER
C38
K0.01u
R11
1 2
S1
39k
60
LDO2_CTRL
59
LDO1_CTRL
58
VBAT1
57
DC_Sense
56
DC_CTRL
55
DC_I
C18 C8 220n
54
DC_STAB
1n
53
*RST
52
P17/CHARGE/INT7
51
P23/ADC1
50
R200 47k
VDD3
+2.5V
49
VSS3
C21 K0.1u
48
P07/SPIDI/PCM_DIN
100
47 R103
P06/SPIDO/PCM_DOUT
R104 100
46
P05/SPICLK/PCM_CLK
45
P04/SCL2
44
P03/SDA2
43
P02/JTIO
42
P01/URX
R182
41
P00/UTX
+4.2V
LED1
R71
47
LED-
Q12
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
LCD_SDA
LCD_SCL
(12)
(13)
JTAG
URX
0 UTX
(14)
(15)
(16)