24
KX-DT543/KX-DT543-B/KX-DT546/KX-DT546-B
Table-3 : Flash ROM(IC401) Data Error / DSP Data Error
Chec
k
the solderin
g
.
Resolder or repl
a
ce p
a
rts
a
s needed.
Rel
a
ted p
a
rts: C400,C559,IC401,IC410,L
222
NO
Con
f
ir
m
the volt
ag
e
a
t Pin 8 o
f
IC401 (
V
CC33)
a
nd
Pin 10
6
o
f
IC410.
A
re they
a
bout 3.3
V
?
Rel
a
ted p
a
rts: IC410,R408
NO
Y
E
S
Con
f
ir
m
the
f
re
q
uency o
f
cloc
k
si
g
n
a
l
a
t Pin
6
o
f
IC401. Is it 103.
6
8MH
z
?
(This cloc
k
is NOT continuous)
Re
f
er to the
wa
ve
f
or
m
(
2
).
Y
E
S
Rel
a
ted p
a
rts: IC410,IC401,R404,R405,R40
6
,
R40
7
,R408,R409,C400,C559
NO
Y
E
S
Con
f
ir
m
the
wa
ve
f
or
m
o
f
co
mm
unic
a
tion
bet
w
een IC401
a
nd IC410.
Re
f
er to the
wa
ve
f
or
m
(3).
END
DG
V
CC33
DG
IC410
C400
C559
R4
0
0
R4
0
1
R4
0
2
R
403
R
404
R
405
R4
0
6
C
490
C
491
R4
0
7
R
408
R
409
IC401
108
10
7
105
104
1
2
C
D
Q
1
D
Q
3
S
#
D
Q2
D
Q
0
C
D
Q
1
D
Q
3
S
#
D
Q2
D
Q
0
1
2
3
4
8
7
6
5
*C
S
IO1
IO
2
GND
V
CC
IO3
CLK
IO0
DC
X
81
[Rel
a
ted Circuit]
V
CC33
QV
CC
10
6
