Read Sony BDP-BX59 / BDP-S490 / BDP-S590 Service Manual online
9-4
Audi
o secti
on fl
ow
chart
Audi
o does not sound ri
ght
N
o
Vi
deo i
s output
properl
y
No
To Vi
deo secti
on fl
ow
chart
To M
ai
n f
low
char
t
Y
es
Is t
he
dri
ve oper
at
in
g prop
erl
y?
No
To D
ri
ve fl
ow
ch
art
Yes
Is
each pow
er
suppl
y supp
lied t
o t
he A
U
DIO
Bl
ock?
N
o
T
o Pow
er Suppl
y (
S
ystem
)
flow
chart
I
C
302 pi
n3:
3.3V
Yes
Onl
y
A
na
log 2ch L/R A
ud
io
a
ffec
ted?
N
o
Onl
y Di
gi
tal
Audi
o (
HDM
I,
C
oa
x,
Optical)
affected?
No
Repl
ace t
he M
B
board
Yes
Y
es
Y
es
Y
es
Is there HDM
I output
?
N
o
Re
pla
ce
th
e M
B board
Re
pl
ace the Optical board or FFC/harness
Is there Coax
ial
output?
Is ther
e aud
io
s
ys
tem
di
gi
tal
si
gnal
input to
IC901?
IC901
pi
n1:
A
LO_R
IC901
pi
n10:ARO_R
No
Repl
ace the M
B
board
Yes
Are control
si
gnal
s i
nput to IC901?
IC901pin7: MUTE
N
o
Repl
ace the M
B
board
Yes
Is
ther
e a pro
ble
m
w
ith m
ount
cond
iti
on of
IC901
No
Repl
ace IC901 or rep
lace
M
B
board
Check output resistor/capasitors
(R943,R945,C928,C931,C932)
No
Is there Optical
output?
No
Re
pl
ace the Optical board
No
BDP-BX59/S590/S490
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