KX-TG6481RUT, KX-TGA648RUT - Panasonic Telephone Service Manual (repair manual). Page 74

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74
KX-TG6481RUT/KX-TGA648RUT
14.1.2. Bottom View
KX-TG6481 CIRCUIT BOARD (Base Unit_Main (Bottom View))
VDD1
1.8V
CLK
(10.368MHZ)
VDD4
(CP3.0V)
L2T
L1T
L1R
L2R
SP+
SP-
CHG-
DC+
DC-
GND
VDD3
(3V)
CP2.5V
URX
JIG
UTX
VDD2
(2.5V)
CHG+
}
A
PNLB1100Z
CHG
SP
L2T
L1T
L1R
L2R
1
80
E
E
E
1
CLK
VDD5
VDD4
VDD3
VDD2
UTX
J101
RED
WHT
R
ED
BLK
GND
ANT1_TP
CL1
JTAG
URX
4
E
DC
PbF
C421
C422
C631
C625
C72
C137
C53
C55
C54
C148
C423
C84
C147
C826
C820
C305
C65
C614
C61
VDD1
C617
C814
R76
R77
R78
R75
R34
R81
R33
R37
R36
R615
IC7
SPp
DCP
DCM
SPm
Q421
Q9
ANT2_TP
CL2
C623
C626
C155
LINE_DC
C18
C22
C56
C167
C141
C24
C23
C857
C856
C855
C52
C169
C170
C136
C171
C168
C149
C74
C837
C75
C145
C146
C150
C858
R20
R23
R18
R24
R116
R12
R13
R35
R32
R87
R86
L2R
L1R
L2T
L1T
BLK
YLW
RED
GRN
TP10
D23
D26
D21
Q2
C622
C14
C57
R19
R117
R29
R2
TP9
D22
D16
D15
Q5
GND_C
Q8
C615
C430
C60
C630
C616
R424
R425
R430
R426
R429
R428
R427
IC421
TP16-sub
TP16
TP15-sub
TP15
RA80
RA1
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