KX-TS2356UAB, KX-TS2356UAW (serv.man3) - Panasonic Telephone Service Manual (repair manual). Page 7

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7
KX-TS2356UAB/KX-TS2356UAW
4 Technical Descriptions
4.1.
Block Diagram
D3
, D5
C1
      D
1
PC1
    
R1
IC
1
D
4
, D
6
H
a
ndset
Q1
0
7
Q1
0
1
, Q1
0
2
, Q1
0
3
D
101
T
SP
R
MIC
D3
0
2
D
301
 IC
3
0
1
           IC
3
0
2
    4
.5
V
IC
8
5
1
B
a
tte
ry
 IC
3
0
3
IC
501,
 Q
502
LC
D
KX-
T
S
2
3
5
6
 :
 BLO
CK DI
AG
RAM
Q4
0
1
, Q4
0
2
, Q4
0
3
Q4
2
2
IC
8
0
1
MI
C
O
N
R
inge
r indic
a
tio
n LE
D
L
E
D
1
 (2
AP)
JOHN S
M
IT
H
1234567890
RI
NG
ER
IC
DR
IN
G
Li
ne
ON
/OF
F
H
andse
t
R
e
ce
iv
in
g
Am
p
EEPR
O
M
TIPIN
S
ide
to
ne
B
ri
dge
RE
SE
T
BA
TTL
O
W
Re
s
e
t I
C
H
a
ndse
t
Se
n
d
in
g
Am
p
Ke
yb
o
a
rd
Sw
it
ch
RIN
GIN
B
a
tte
ry
 L
o
w
De
te
c
to
r
R
e
gul
at
or
3.
3 V
F
S
K
 / D
T
M
F
 C
irc
u
it
W
a
ke
up C
ir
c
ui
t
WA
KEUP
Dum
m
y
 Ri
nger
C
ircu
it
RING_
DET
 (2
AP)
Buzzer
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