16
KX-DT543/KX-DT543-B/KX-DT546/KX-DT546-B
4.2.11.
Power Supply Circuit
OP
E
DCX
8
1
3.
3V
RJ
1
1
(PBX
f
e
e
d
)
IN
P
U
T
S
peak
er
40
PG
DG
ASI
C
2
EH
S
LE
D
KEY
RJ
1
1
(DX
DP
feed)
40
+
-
PG
DCD
C
V
CC3
3
DG
1.2V
1.
8V
V
CCA
3
3
V
DD3
3
AG
N
D
LC
D
B
O
X
4.5V
HE
A
D
G
N
D
3.3V
_L
ASI
C
1
Da
ta
C
o
m
m
uni
c
a
tion
LD
O
A
nal
og P
a
rt
Di
g
it
a
l P
a
rt
A
m
p
lif
ie
r
Fla
s
h
APU
L
D
O
LC
D
LCD
B
a
c
k
light
MI
C
B
IA
S
MI
C
H
ands
et
H
eads
et
EH
S
A
nal
og C
ir
c
ui
t
