Panasonic KX-TG8201CB Service Manual page 67

10.368MHz
2.5V
0V
(1)
(2)
(3)
(4)
(5)
HEADSET_DET
LDO2_CTRL
(6)
LDO1_CTRL
(7)
DC_CTRL
(8)
DC_I
(9)
+2.5V
32K EEPROM
R177
CHARGE
(10)
EEPROM
NC
8
(11)
VCC
7
WP
6
(12)
SCL
(13)
5
SDA
Sp-phone RX
Beep
(14)
(15)
(16)
BATTERY
1
GND1
+2.5V
2
ANT2
3
VCCPA
4
GND2
5
GND3
+1.8V
6
VDD_ANA
7
VDD_DIG
8
GND4
9
SYRI
10
GND5
CLK
R51
RFCLK
NC
LE
SK
R191
NC
1.5V DC supply to MIC
TX-AF
RX-AF
(Handset)
IC3
1
A0
2
A1
3
A2
4
GND
+2.5V
R155
NC
R154 C
Q21
B
NC
NC
E
IC11
NC
1 8
1A VCC
2 7
3Y 1Y
3 6
2A 3A
4 5
GND 2Y
R169 NC
1 3
X11
NC
2
67
ANT1
ANT
26
GND14
R151
25
TXPO-SET
680
24
GND12
23
GND13
22
IC4
GND10
21
ANT1
20
*RESET
RF Module
19
GND9
R186
R170
18
TXDA
0 330
17
GND8
R188
R190
NC
NC
RX DATA
R23 R25
470 2.2k
R24 C11
3.3k K0.1u
R33
100k
R94
NC C86
47u
R157
0
R158
0
KEY_LED
R164 NC
+2.5V
R163 NC
MIDI_SCL
25
SCLK/D2
26
D1
MIDI_SDA
27
D0
28 IC12
*WR
MIDI_CS
29
*CS NC
+2.5V
30
*ILE
31
*RD
32
IOVDD
C171 NC
KX-TGA820 SCHEMATIC DIAGRAM (Handset)
KX-TG8201CB/KX-TG8202CB/KX-TGA820CB
R52
RESET
1k
TX DATA
TD0
SIO
TP22
R21 NC
1
R22 NC
2
MIC
TP23
C180
330pF
L21
1
L22
2
3
4
L23
5
CN4
REV_TEST1
REV_TEST2
SP_TEST1
SP_TEST2
+4.2V
C156
C157
16
SPGND
NC
15
NC
SPVDD
R161
14
MIXOUT
NC
13
MIXIN
12
AOUT
C158
11
NC2
NC
10
NC1
+4.2V
9
VREF
Q22
NC
C155
NC
C169 NC
for RU/UA
NC: No Components