Read Panasonic KX-TG6451CAT / KX-TGA641RUT Service Manual online
75
KX-TG6451CAT/KX-TGA641RUT
KX-TGA641 SCHEMATIC DIAGRAM (Handset_Main)
NC: No Components
10k
R40
10k
R41
BATTERY
GND
GND
10k
R42
GND
CP+3.0V
64k
1
A0
2
A1
3
A2
4
GND
5
SDA
6
SCL
7
WP
8
VCC
CP+3.0V
VREFm
NC
*C110
GND
GND
NC
*L71
NC
*C108
VREFm1
NC
*R306
VREFm
GND
Headset Jack
*CN4
*CN4
NC
1
4
2
3
5
NC
*C82
NC
*C128
*L72
NC
NC
*C185
GND
VREFm1
NC
*L73
NC
*L74
VREFm1
NC
*R100
NC
*C127
NC
*C83
VREFm1
NC
R307
NC
*C86
VREFm
VREFm1
GND
NC
*L3
GND
VREFm
NC
*C111
VREFm
NC
*C109
NC
*R35
NC
*L9
NC
*R311
K1u
C188
10p
C70
D21
D22
10p
C71
GND GND
NC
C76
D10p
C113
VREFm
MIC+
VREFm
MIC-
NC
R313
GND
NC
R312
GND
GND
GND
D3
NC
2
1
D4
NC
2
1
NC
C77
VREFm
VREFm
R209
NC
NC
R208
D13
D14
GND
D10p
C72
GND
D10p
C73
K0.1u
C172
GND
3.3n
C814
220
R806
GND
TXp
47
R805
GND
GND
VDD_PADRV
1k
R804
TXON
GND
10p
C825
GND
100n
C808
GND
PON
10p
C812
10p
C819
1k
R803
GND
BATTERY
GND
1
PSET
2
VCCS
3
PI
4
PIX
7
PSEL
8
POX
9
PO
10
VC C
11
GND
5
PRAMP
6
PAON
GND
TXn
10p
C809
PSEL
10p
C811
GND
GND
GND
GND
RF_RXp
RXON
GND
GND
GND
GND
RF_RXn
220
R807
NC
C837
10p
C827
GND
VSS
CN5
10
GND
CN5
1
RESETB
CN5
4
V0
CN5
11
VDD
CN5
8
SCLK
CN5
6
LCD_CSB
CN5
3
A0
CN5
5
OPT_PWR
CN5
2
VDDA
CN5
9
SID
CN5
7
GND
CN5
12
k1000p
C152
GND_0 GND_0
GND_0
GND_0
DA801
1
2
3
27n
L801
2p
C802
2p
C804
1.5p
C803
AP1
MIC
1
2
SP-PHONE_SPEAKER
1
+
2
-
TP_ANT1
1
+
2
-
GND
3p
C861
10p
C822
0.7p
C820
2p
C826
100p
C103
3.3k
R53
C106
NC
10k
R54
GND
100p
C105
GND
GND
NC
C107
470
R51
GND
GND
GND
GND
2p
C187
2p
C186
GND
GND
NC
L804
1k
R55
1k
R52
10k
R50
1u
C175
R578
NC
GND
NC
*C33
NC
*R34
NC
*R33
NC
*R32
GND
GND
3.6n
L802
3.6n
L803
3.3p
C806
1.6p
C810
1.6p
C813
3.3p
C805
10p
C860
0.7p
C862
GND
R808
NC
VREFm
NC
C74
NC
C75
VREFm
GND
GND
NC
C78
NC
C79
82
R73
82
R74
10p
*C104
10p
*C580
3p
*C859
10p
*C863
10p
*C864
680
*R801
100
*R802
0.5p
*C834
LCD_CD
LCD_CSB
LCD_RESET
LCD_SCL
LCD_SDA
LSRp
LSRn
MICp
MICn
to LCD UNIT
VREFm
MICh
LSRp
HEADSET_DET
LSRn
LSRp
Pre-matching
W 0.15mm
L 4.0mm x2
1st layer
L 4.0mm x2
1st layer
W 0.15mm
L 20+/-2mm
3rd layer
L 20+/-2mm
3rd layer
W 0.15mm
L 20+/-1mm
3rd layer
L 20+/-1mm
3rd layer
Balun
BPF
W 0.15mm
L 5.0mm
1st layer
L 5.0mm
1st layer
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
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)
(14)
(15)
(16)
(17)
(18)
(7)
RX_RF
TX_RF
TX _AF
RX-AF (Handset)
Sp-phone RX/Beep
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