Panasonic KX-TG8200BXB Service Manual page 73

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
R177
CHARGE
(10)
NC
(11)
(12)
(13)
Sp-phone RX
Beep
(14)
(15)
(16)
BATTERY
+2.5V
+1.8V
CLK
R51 NC
RFCLK
LE
SK
R191 NC
1.5V DC supply to MIC
RX-AF
(Handset)
EEPROM
IC3
8 1
VCC A0
7 2
WP A1
6 3
SCL A2
5 4
SDA GND
R155
Q21
R154
B
NC
IC11
NC
1 8
1A VCC
2 7
3Y 1Y
3 6
2A 3A
4 5
GND 2Y
R169 NC
1 3
X11
2
ANT
1 26
GND1 GND14
2 25
ANT2 TXPO-SET
3 24
VCCPA GND12
4 23
GND2 GND13
5 22
IC4
GND3 GND10
6 21
VDD_ANA ANT1
7 20
VDD_DIG *RESET
RF Module
8 19
GND4 GND9
9 18
SYRI TXDA
10 17
GND5 GND8
R190
NC
R23 470 R25
TX-AF
C11
R24 3.3k
R33 100k
NC
R94
C86
22u
+2.5V
+2.5V
KEY_LED
R164 NC
NC +2.5V
R163
NC
C
NC
E
MIDI_SCL
25
SCLK/D 2
26
D1
MIDI_SDA
27
D0
28
*WR
MIDI_CS
29
*CS
+2.5V 30
*ILE
31
*RD
32
IOVDD
KX-TGA820 SCHEMATIC DIAGRAM (Handset)
73
KX-TG8200BXB/KX-TGA820BXB
R151
270
R52
RESET
1k
TX DATA
R186
R170
TD0
330
0
R188
SIO
NC
RX DATA
2.2k
TP22
R21 NC
1
R22
2
MIC
NC
330pF
TP23
C180
L21
1
2
L22
3
4
5
L23
CN4
REV_TEST1
REV_TEST2
R157 0
R158 0
+4.2V
NC
C157
16
SPGND
C156
15
SPVDD
R161 NC
14
MIXOUT
13
IC12
MIXIN
12
AOUT
NC
C158
11
NC2
NC
10
+4.2V
NC1
9
VREF
Q22
NC
C155
NC
C169 NC
NC
C171
NC: No Components
SP_TEST1
SP_TEST2
NC
for RU/UA