Panasonic KX-TG6841B Service Manual page 73

ANT-Pattern
ANT-Short
C808
1.3p
GND
ANT1
ANT-Short-GND
GND
GND GND
W 0.15mm
L 6.2mm
1st layer
X1
13.824M
(1)
GND
(2)
CHG_DET
(3)
CHG_CTRL
(4) GND
Speakerphone_SP+
(5)
Speakerphone_SP-
(6)
(7)
(8)
R22 C14
(9)
3.3k 0.039u
(10)
GNDA GND
R23 MIC POWER
(11)
390
HEADSET_DET
GND
(12)
(13)
(14)
MSL
Wm=0.4mm
Lm=10mm
GND
GND
GND
SL SL
GND
W=0.3mm W=0.3mm
W 0.2mm
L=12.45mm L=6.95mm
L 3.8mm
1st layer
open-stub
SL
SL
W=0.2mm
W=2.9mm
L=20mm
L=3.8mm
VBAT
STAR5
open-stub
SL
W=0.6mm
L=20mm
L4 NC
SP Phone Rx
RECEIVER- C16 22u
RECEIVER+
R81
NC
GNDA
GNDA
Handset Tx
SP Phone Tx
MIC+
MIC+
MIC-
MIC-
GNDA
KX-TG6841B/KX-TG6842B/KX-TG6843B/KX-TG6844B/KX-TG6845B/KX-TG6873B/KX-TGA680B
RF BLOCK
C801
RXn
2p
SHORT1
RXp
GND
SL GND
W=0.3mm MSL
W=0.25
L=6.5mm
L=2mm
TXp
Tx-balun
SL
open-stub
W=0.3
MSL
SL GND
L=40mm
W=0.25
W=2.2mm
L=2mm
open-stub
TXn
L=5.0mm
SL
STAR7
W=2.0mm
L=10.8mm
Pre-matching
+
-
GND GND GND GND
SPP
C42
NC
+
-
SPM
GND GND
Handset Rx
1
2
3
4
5
L8
10
GNDA GNDA GNDA1 GNDA1 GNDA1 GNDA
MIC AP1
RF-SHIELD
NC
GND
KX-TGA680 SCHEMATIC DIAGRAM (Handset_Main)
73
SP-PHONE_SPEAKER
RECEIVER
CN4
Headset Jack
SHORT2
GNDA GNDA1
NC: No Components