KX-UDT111RU (serv.man3) - Panasonic PBX Service Manual (repair manual). Page 6

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6
KX-UDT111RU
4 Technical Descriptions
4.1.
Block Diagram
RF
BAT +
VB
AT
BAT -
CH
G -
CH
+
Po
we
Sup
ply 
for 
Backlig
ht
Key
 (26)
(Triangle Matrix)
LCD_Backlight
Key_Backlight
Vib_Motor
M
MI
C
RE
CE
IVE
R
HE
ADS
E
T
JA
C
K
SP
EA
KER
3
13
.824
MH
4
BBIC
(APU
)
AN
T
A
P
U-DPU
 I/F
KB
IO
1
8
MI
P
MI
N
HSSPO
UT
P
LO
U
T
HSMIP
HEAD
SET
_DET
SPO
UT
P
SPOU
T
N
V
ib
_
CTRL
CP_
O
FF
L
CD_B
L
1
LCD_
BL
2
DOUBO
U
T
C
H
G_
CTRL
CHG_
D
ET
BAT
CHG_
CUR
Serial F
las
h Memo
ry
16MB
it
Nu
mo
ny
x
1.8
” TFT  C
olor L
CD
128
x1
60do
(Tru
ly /Dr-
IC:HX835
3)
RF
Ci
rc
ui
t
SR
AM
4MB
it
C
ypr
es
s
BB
IC
(D
PU)
SP
I
add
re
s
s
/d
ata
 bus
SP
I
RF I/F
Uart
U
a
rt I/F
J
T
AG
 I/
F
Ni-MH
JT
AG
C
harge 
Circuit
BELL_LED(Green)
BE
LL
_
G
R
EEN
BELL_LED
( Red)
BE
LL
_
R
ED
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