Read Panasonic KX-TG6481RUT / KX-TGA648RUT Service Manual online
71
KX-TG6481RUT/KX-TGA648RUT
CN4
Headset Jack
1
4
2
3
5
100k
R32
MIC-
MIC+
K10p
C71
D10p
C83
K10p
C72
K10p
C73
NC
C113
NC
C128
C108
NC
C82
K470p
K100n
C172
L72
10k
R40
BATTERY
GND
GND
GND
GND
NC
R206
NC
R207
NC
C111
NC
C109
10k
R42
D3
NC
2
1
D4
NC
2
1
D19
NC
D20
NC
NC
C75
NC
C74
VREFm
VREFm1
GND
GND
GND
GND
VREFm
GND
64K
1
A0
2
A1
3
A2
4
GND
5
SDA
6
SCL
7
WP
8
VCC
CP+2.5V
NC
C76
NC
C77
100k
R34
100
R306
VREFm1
C86
D10u
D21
D22
10
L74
K1n
C127
GND
VREFm1
VREFm
GND
GND
NC
R309
NC
R310
L9
VREFm1
VREFm1
VREFm1 VREFm1
K1n
C152
GND
D14
D13
K1u
C188
GND
MIC
1
2
K100n
C33
K10p
C70
GND
GND
GND GND GND GND
GND
GND
GND
GND
GND
GND
GND GND
GND
GND
NC
R307
R308
0
L71
K1n
C185
K1n
C110
L10 33
L11 33
C-Check1
C-Check2
SPEAKER+
SPEAKER-
RECEVER+
RECEVER-
4.7k
R41
220
R806
TXn
RF_RXp
1k
R803
10p
C812
10p
C827
GND
1
PSET
2
VCCS
3
PI
4
PIX
7
PSEL
8
POX
9
PO
10
VCC
11
GND
5
PRAMP
6
PAON
1k
R804
GND
220
R807
100n
C808
PSEL
TP_ANT1
3.3p
C805
3p
C861
2p
C802
47
R805
GND
3.6n
L803
10p
C863
3.3n
C814
GND
GND
3.6n
L802
PON
GND
NC
R808
BATTERY
10p
C819
RF_RXn
0.5p
C834
GND
TXp
10p
C860
GND
GND
GND
GND
GND
GND
GND
1.5p
C803
10p
C864
10p
C825
10p
C809
GND
2p
C826
GND
1.6p
C813
GND
2p
C804
DA801
1
2
3
TXON
0.7p
C820
100
R802
GND
3.3p
C806
NC
C837
VDD_PADRV
RXON
GND
10p
C811
1.6p
C810
GND
GND
27n
L801
GND
10p
C822
RF-SHIELD
1
2
3
4
5
6
GND
680
R801
VREFm
MICh
LSRp
LSRp
LSRn
MICp
MICn
HEADSET_DET
W 0.15mm
L 5.0mm
1st layer
L 5.0mm
1st layer
W 0.15mm
L 20+/-2mm
3rd layer
L 20+/-2mm
3rd layer
Balun
W 0.15mm
L 20+/-2mm
3rd layer
L 20+/-2mm
3rd layer
Pre-matching
W 0.15mm
L 5.0mm
1st layer
L 5.0mm
1st layer
W 0.15mm
L 20+/-1mm
3rd layer
L 20+/-1mm
3rd layer
BPF
W 0.15mm
L 4.0mm x2
1st layer
L 4.0mm x2
1st layer
W 0.125mm
L 7.6mm
Gap 0.125mm
1st layer
L 7.6mm
Gap 0.125mm
1st layer
IC3
IC801
(1)
(2)
(3)
(2)
(3)
(4)
(6)
(5)
(8)
(9)
(10)
(11)
(12)
(13)
(7)
KX-TGA648 SCHEMATIC DIAGRAM (Handset_Main)
NC: No Components
RX_RF
TX_RF
TX _AF
RX-AF (Handset)
Sp-phone RX/Beep
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