BDP-BX37/S270/S370/S373/S470
FR Board
flo
wchart
(2/2
)
Re
m
ote control does not o
per
at
e
Sy
m
pto
m
im
prove
when replacing FR
board
?
No
Are
there
signals
to
pi
n13
of
M
B board
CN1504
?
No
Repla
ce
F
FC
Yes
Yes
Are
there
signals
to
IC1503
pin24?
No
Ch
ec
k
M
B pa
tte
rn ne
ar
IC1503
Yes
To
IFcon s
ect
ion
flo
wc
ha
rt
Is
there
ou
tput
o
f about
3
.3V
fo
r po
ten
tial
o
f
CN702 pin13
?
No
Replace
IC701
and
chec
k
FR
board
pa
tter
n
Yes
Disconnected
flexible harness
9-10
