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14
KX-UT133RU/KX-UT133RU-B/KX-UT136RU/KX-UT136RU-B
4.2.9.
Power Supply Circuit
Ope
AC
Adaptor
9V/750
m
A
PW
R
G
N
D
9V9V
12V12V
IC501
V
C
C(3.
3V
)
V
C
C(3.
3V
)
VC
C
A
VC
C
A
VC
C
P
A
VC
C
P
A
DG
AG
5V5V
RJ
45
JK402
JK401
T403
T402
D409,D411
L411
C312
D305
IC303
IC301
IC402
D401
BBIC
IC103
IC101
IC205
JK202
JK203
IC503
IC401
IC504
(P
o
E
)
Dig
ital Part
Am
plif
ier
Par
t
PH
Y
Fl
a
s
h
SDRA
M
RJ45
(P
C)
Ba
cku
p
44
∼
57
V
PoE_G
te
rm
in
at
or
te
rm
in
a
to
r
PoE_AG
(P
ro
te
c
ti
o
n ag
a
in
s
t no
is
e
)
A
m
p for M
icrophone
(SP-
PHO
NE,
HAN
DS
ET
and H
E
A
D
S
E
T)
Cl
as
s D Am
p
fo
r Sp
e
a
ke
r
DCD
C
(3.3V
)
DCD
C
(5
V
)
PoE
DCD
C
+
-
Noi
s
e
F
ilter
Reg
(3.3V
)
Spea
k
e
r
MIC
ASIC
Heads
et
Hands
et
LC
D
Bac
kli
ght
LEDLED
KE
Y
LCD
EHS(
PS
B)
LCD_BO
X
Ba
cku
p
Analog Par
t
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