Read Sony BDP-BX59 / BDP-S490 / BDP-S590 Service Manual online
US
B
(Fron
t)
Dev
ice Flow
USB
dev
ice
is not reco
g
niz
ed
Insert the USB dev
ice again.
Is
i
t
recogniz
ed when t
h
e
powe
ri
s
turned
O
FF
and t
hen
O
N again
?
N
o
Is
5V
pre
s
en
t
at
CN201
(FR-320
board
) pin1?
No
Is
5
V
pres
e
nt
a
t
CN1002
(MB
board
) Pin 12 or pin 13?
No
Is
5V
present at
IC
6
01 pin1
(M
B
board)
?
No
Power
suppl
y
IC310 (MB board
-
defective
Power
suppl
y
IC310 (MB board
-
defective
Y
e
s
Y
s
e
Y
s
e
Y
s
e
Poo
r contact
o
f t
h
e
U
S
B d
e
vi
c
e
Def
e
ctiv
e FFC bet
we
en t
h
e IF
boar
d
an
d
t
he
MB
board.
Does replac
ing I
C
601(MB board)
improv
e the sy
mptoms?
No
Repla
c
e t
he M
B
board
Y
es
Repl
ac
e t
h
e FFC
be
twe
en t
h
e
MB
board
an
d
t
he
IF
boar
d
.
Do
the
sy
m
p
toms
im
pro
ve
?
N
o
Repla
ce
the
MB board
1
0
6
CI
.(
M
B
board)
de
fec
tiv
e
Y
e
s
Def
e
ct
iv
e
FFC betwe
en
t
he
IF
boar
d
and t
he
MB
boa
rd
9-11E
BDP-BX59/S590/S490
USB (Rear) Dev
ice Flow
US
B
d
e
vi
c
e
i
s
n
o
t
reco
g
niz
ed
Inser
t t
h
e
U
S
B
de
vi
ce
aga
in
.
Is
i
t
recog
ni
z
e
d wh
e
n
th
e powe
r
is
tu
rned OFF
and
th
e
n
O
N
again
?
No
Is
5V pres
e
nt
at
CN
604
pin
1
(
MB-
144
board
)
?
N
o
Is
5V
pr
e
se
n
t a
t
IC601
pin
1
(MB board)
N
o
Poor cont
ac
t of
t
h
e USB
dev
ice
Doe
s rep
lac
in
g I
C
601
(MB
board
)
improv
e t
h
e sy
mptoms?
No
Repla
ce
t
he
MB
boar
d
Y
e
s
IC
601(MB
board
) de
fectiv
e
Y
e
s
Ye
s
Repl
ace
t
h
e
MB
boa
rd
Ye
s
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