Panasonic KX-TG2711B Service Manual page 17

+1.8V
Q2
(1)
C2 C10
NC K1u
GND GND
(2)
(3)
POWER
S1
1 2
(4)
CP_LED CP+3.0V
CP3V
CPLED
C51 K1u
C55 NC
C52 10u
GND
*C54 1u
GND
(5)
C191
K1u
C49
GND
K1u(1608)
(6)
*C50
NC
44
CP_C2x
43
CP_C1x
42
VBAT
41
C190
VDD2
40
K0.1u
NC2
C42
39
NC1 K1u
GND
38
CP_VBAT1
GND
37
P3_0/DP0/PAOUTn
36
VDDPA
35
P3_1/DP1/PAOUTp
34
P1_7/CHARGE
33
CHARGE_CTRL
J0JDC0000045
L46
32
SOCn
31
SOCp
L47
J0JDC0000045
30
NTC/ADC2
29
P1_0/INT0/ADC1
GND
28
P3_3/ADC0
27
LDO_CTRL
26
AVD
25
LSRn
24
LSRp
23
VREFm
(7) VREFm
GND
R23
1k
R27 C14
820 10u(2125)
C13 C11
6.3V
K0.1u K0.1u
VREFm
R28
820
VREFm
(8)
(9)
(10)
GND
1.8V
VBAT
C189 C188
NC K1u
GND GND
CHARGE
CHARGE_CTRL
C98 C99
SOCn
NC NC
C36
NC SOCp
GND GND
COL0
LDO_CTRL
MIC+
MICp
MICn
MIC-
RF BLOCK
ANT-Short
ANT-Short-GND
ANT1_TP
GND
GND
C859
10p
SL
W=0.2mm
L=20.0mm
open-stub
SL
W=0.6mm
L=20.0mm
C73 C72 D14
NC NC 4.3V
GND G D N G
1.9GHz Trap
GND GND
1.9GHz Trap
RCV+
+
-
RCV-
C71 C70 D22 D21
NC
NC NC NC
GND GND GND GND
1
2
C75 D3
NC
VREFm GND
17
KX-TG2711/KX-TG2712/KX-TG2721/KX-TG2722/KX-TGA277
RX-balun
SL
W=0.175mm
L=3.6mm
S=0.125mm
open-stub
SL
W1=0.2mm
L1=3.3mm
W2=0.7mm
L2=4.3mm
GND
SL SL
W=0.3mm W=0.3mm
L=6.95mm L=6.5mm
TX-balun
SL
open-stub open-stub open-stub
W=0.3mm
SL SL SL
L=39.0mm
W=2.9mm W=2.0mm W=2.2mm
L=3.8mm L=10.8mm L=5.0mm
LPF
+
SP-PHONE_SPEAKER
-
D13
4.3V
D N G D N
RECEIVER
*MIC AP1
*RF-SHIELD
NC
11 10 9 8
12 7
13 6
1 2 3 4 5
GND
KX-TGA277 SCHEMATIC DIAGRAM (Handset)
2/2
<u?.46EY:GE,2=$N$?$a
%A%C%W$KCV$-49$(
RF_RXn
open-stub
SL
W1=0.2mm
L1=3.3mm
W2=0.7mm
L2=5.0mm
open-stub
RF_RXp
SL
W1=0.2mm
L1=3.3mm
W2=0.7mm
L2=5.0mm
FbB"
C=3.6pF
10.5mm2
RF_TXn
FbB" GND
C=3.6pF
10.5mm2
RF_TXp
Pre-matching
GND
%A%C%W2=
4layer GND 6/2=$N$?$a
VBAT
for carbon
PCB information
impedance check
PCB
CARBON_CL1
RE1
NC: No Components