Sony BDP-BX18, Руководство по обслуживанию, Страница: 91 / 105

9-7
BDP-BX18/S185/S186
Rem
ote control does not o
perat
e
Check of +3.3V voltage at IC710 pin1?
N
o
(M
B
board)
N
o
To Power supply flow chart
Y
es
N
o
Ch
eck
F
F
C
d
is
co
n
n
e
ct
e
d
f
ro
m
CN701 or broken?
Y
es
T
o I
Fcon section f
low
chart
Check
of
appearance
wavef
orm
during
pressing remote control at IC703 pin2
N
o
Y
es
Check of +3.3V voltage at CN1002 pin 3? Check of +3.3V voltage at CN701 pin 2?
N
o
Replace F
F
C
If
s
ym
p
to
m
s
d
o
n
o
t
im
p
ro
ve
,
Change FR board
Check
of
appearanc
e
wavef
orm
during
pressing remote control at CN1002 pin3 (MB board)
Y
es
Y
es
Change IF Board
N
o
Ch
eck
o
f
a
p
p
e
a
ra
n
ce
w
a
ve
fo
rm
during pressing remote control at CN701 pin3
N
o
Replace I
C
1
0
0
2
If
s
ym
p
to
m
s
d
o
n
o
t
im
p
ro
ve
,
Change IF board
C
h
e
ck
p
a
tt
e
rn
a
lo
n
g
S
IR
C
S
li
n
e
If
s
ym
p
to
m
d
o
n
o
t
im
p
ro
ve
,
Change IF board
Ch
eck
F
F
C
d
is
co
n
n
e
ct
e
d
f
ro
m
CN701 or broken?
N
o
Reconnect
F
F
C
If
s
ym
p
to
m
s
d
o
n
o
t
im
p
ro
ve
,
Change FFC
Y
es
Y
es
Change FR Board
Y
es
C
h
e
ck
p
a
tt
e
rn
a
ro
u
n
d
I
C
7
1
0
If
s
ym
p
to
m
d
o
n
o
t
im
p
ro
ve
,
Change IF board