Sony BDP-BX57 / BDP-S570 Service Manual ▷ View online
BDP-BX57/S570
9-6
Aud
io s
ec
tion
flow
char
t
Au
dio
do
es
n
ot
so
un
d r
igh
t
No
Vi
de
o i
s ou
tpu
t prop
er
ly
No
To V
ideo
sec
tion
flow
char
t
Yes
Is t
he F
L di
spl
ay/
LE
D di
spl
ay c
or
re
ct?
No
To M
ain
flow
char
t
Yes
Is t
he
dr
ive
ope
ra
ting
prop
er
ly?
No
To
Dr
ive
flo
wcha
rt
Yes
Is ea
ch po
wer
supp
ly s
upp
lied
to t
he
A
UD
IO
Bl
ock?
No
To P
ow
er S
upp
ly (
Sy
stem
) f
low
char
t
IC304
pin4
: +
5V
CN
305
pin4
: +
3.
3V
Yes
Onl
y A
na
log
2ch
L/
R A
ud
io a
ffe
cted
?
No
Onl
y Di
git
al A
udi
o (
HDM
I, O
pt
ical
, Coax
)
aff
ect
ed
?
No
Rep
lac
e t
he
M
B boar
d
Yes
Yes
Is
ther
e
HDM
I out
put
?
No
Re
plac
e t
he
M
B boar
d
Is
there
O
pt
ical
ou
tpu
t?
No
Is t
here
Co
ax
ial
ou
tpu
t?
No
Is t
here
a prob
lem
w
ith m
ou
nt
con
dit
ion
of
R
99
1
No
Rep
lac
e t
he
M
B boar
d
Y
es
Y
es
Is
IC9
04 l
ight
ed
up?
No
Repl
ac
e I
C904
Is
there
Coa
xia
l ou
tpu
t?
No
Rep
lac
e Q
909
or
rep
lace
M
B boar
d
Is t
here
aud
io s
ys
tem
di
git
al s
igna
l inp
ut
to
IC901
?
IC901
pin7
: DA
CD
AT
IC901
pin8
: LR
CK
No
Rep
lac
e t
he
M
B boar
d
Yes
Ar
e c
on
tro
l s
igna
ls i
np
ut
to
IC901
?
IC901
pin1
1:
X
M
UT
E
No
Rep
lac
e t
he
M
B boar
d
Y
es
Is t
here
a prob
lem
w
ith m
ou
nt
con
dit
ion
of
C91
0,
R96
2
No
Rep
lac
e I
C901
or
rep
lace
M
B boar
d
BDP-BX57/S570
9-7
Vi
de
o
se
ct
io
n
flo
w
ch
ar
t
R
ep
ro
du
ce
d
vi
de
o d
oe
s n
ot
app
ea
r r
ig
ht
Ye
s
Is
th
e
FL
d
isp
la
y/L
ED
di
sp
la
y
co
rre
ct?
N
o
To
M
ai
n
flo
w
ch
ar
t
Ye
s
Is the drive o
perating pro
perly?
N
o
To
D
rive
fl
ow
ch
ar
t
Y
es
C
he
ck
th
e
inp
ut
o
f e
ach
p
ow
er
N
o
R
ep
la
ce
th
e
IC
li
nk
IC
10
01
p
in
5
:+6
V
IC
10
02
p
in
2
:-
6V
W
he
n
IC
10
01
is
d
ef
ect
iv
e:
R
ep
la
ce
PS
30
2
W
he
n
IC
10
02
is
d
ef
ect
iv
e:
R
ep
la
ce
PS
30
3
Ye
s
C
he
ck
th
e
ou
tp
ut
o
f e
ach
p
ow
er
N
o
C
he
ck
th
e
co
nt
ro
l li
ne
s
N
o
C
he
ck
th
e
w
rit
in
g
fro
m
IC
10
1
IC
10
01
p
in
4
:+
3V
IC
10
02
p
in
3
:-
5V
W
he
n
IC
10
01
is
de
fe
ct
ive
: C
he
ck
PC
O
N
T3
W
he
n
IC
10
02
is
de
fe
ct
ive
: C
he
ck
PC
O
N
T2
Y
es
Ye
s
R
ep
la
ce
m
en
t d
evi
ce
W
he
n
IC
10
01
i
s
de
fe
ct
iv
e:
R
ep
la
ce
IC
10
01
W
he
n
IC
10
02
i
s
de
fe
ct
ive
: R
ep
la
ce
IC
10
02
Ye
s
Ar
e
vi
de
o
si
gn
al
s
inp
ut
to
IC
10
03
N
o
C
he
ck
th
e
w
ritt
in
g
fro
m
IC
10
1
Pi
n1
C
VBS
si
gn
al
Pi
n7
Y
si
gn
al
Y
es
Ar
e
co
nt
ro
l si
gn
al
s
in
pu
t t
o
IC
100
3?
N
o
C
he
ck
th
e
w
ritt
in
g
fro
m
IC
10
1
IC
10
03
p
in
8
M
U
TE
(XV
M
U
TE
+3
.3
V)
Y
es
Is
a
vi
deo
si
gn
al
o
ut
pu
t f
ro
m
IC
10
03
?
N
o
R
ep
la
ce
IC
10
03
Y
es
Is
a
si
gna
l o
ut
pu
t f
ro
m
e
ach
V
id
eo
o
ut
put
con
ne
ct
or
?
N
o
C
he
ck
ou
tp
ut
re
si
st
or
s
(
R
103
1,
R
102
8,
R
102
9,
R
10
30
,R
103
2,
R
103
3,
R
10
34
a
nd
R
10
35
)
C
he
ck
th
e
pi
n
ja
ck
bl
ock
SW
P/SW
B
Bo
ar
d
flo
wch
ar
t (
1/
1)
Pow
er
button
on
th
e
main
unit
do
es
no
t w
or
k
Key
1
doe
s
not
o
pe
rat
e
Does
sy
mpt
om
impr
ov
e
when
replacing
the
SW
P
board?
N
o
To I
Fc
on
se
ct
ion
flow
cha
rt
Is the
re v
olta
ge
of a
bo
ut 3.3V at p
in
2
of
CN402
w
itho
ut
p
ressin
g
the
ke
ys?
N
o
To I
Fc
on
se
ct
ion
flow
cha
rt
Ye
s
Y
es
The
poten
tial o
f
pin
2
of
CN331
does
not
cha
ng
e fr
om
3.3V to
nea
r 0V w
he
n pr
essing
the
pow
er
bu
tton
N
o
Chec
k
pa
ttern
and
S331
migh
t be
br
ok
en
Check th
e resista
nce
of r
esisto
rs of
Key
1
line.
Also
check
the
sur
rounding
pa
tte
rn.
Ye
s
Dis
connect
ed har
ne
ss
or r
epla
ce
SW
P
board
Ke
y o
perat
ion
s
canno
t be
made
on
the
Ke
y2
doe
s
not
o
per
at
e
Doe
s
sy
mpt
om
impr
ov
e
when
replacing
the
SW
B
board?
N
o
To I
Fc
on
se
ct
ion
flow
cha
rt
Is the
re v
olta
ge
of a
bo
ut 3.3V at p
in
4
of
CN402
w
itho
ut
press
ing
the
k
ey
s?
N
o
To I
Fc
on
s
ect
ion
flow
cha
rt
Ye
s
Y
es
W
hich r
ow
of ke
ys do no
t o
pe
rate?
Check th
e resista
nce
of r
esisto
rs of
Key
2
line.
Also
check
the
sur
rounding
pa
tte
rn
STOP
b
utto
ns
->
To
Ke
y1
doe
s
no
t ope
ra
te
Ref
erence:
Relat
ions
hip
of
B
utt
ons
and V
olt
ages
OP
EN
/C
LOS
E
bu
tton
->
To
Ke
y2
doe
s
no
t ope
ra
te
PLA
Y
bu
tton
->
To
Key
3
does
not
operat
e
Ke
y3
does
not
o
per
at
e
Is the
re v
olta
ge
of a
bo
ut 3.3V at p
in
3
of
CN402
w
itho
ut
pre
ss
ing
the
k
ey
s?
N
o
To I
Fc
on
s
ect
ion
flow
cha
rt
Y
es
Check th
e resista
nce
of r
esisto
rs of
Key
3
line.
Also
check
the
sur
rounding
pa
tte
rn
In
pu
t
2.
90-3.
30
0.
00-0.
40
{K
EY0}
Key
_O
FF
PO
W
ER
{K
EY1}
Key
_O
FF
ST
OP
{K
EY2}
Key
_O
FF
O
PEN/CLO
SE
{K
EY3}
Key
_O
FF
PLA
Y
BDP-BX57/S570
9-8
FR
Boa
rd
flow
cha
rt
(1/
2)
FL
D
doe
s no
t li
gh
t
Is
there
vol
tage
of
abo
ut
5.8
V
at
PS
701
?
No
To
FL
D
Sw
itch
S
urroun
ding
C
he
ck
Ye
s
Is
there
vol
tage
of
abo
ut
-22
V
at
JL
701
?
No
Check
the
ci
rcui
ts
surrou
ng
ing
the
FLD
D
D
CO
NV
ER
TE
R.
Ye
s
Is
there
vol
tage
of
3.3V
at
Pi
n43
of
IC
702?
No
Che
ck
the
3.3V
line
of
the
FR
bo
ard.
Ye
s
Is
pin5
of
IC
70
2 osci
llati
ng?
No
Repl
ace
IC
702.
If no
eff
ect
, rep
lace
the
FR
board.
Ye
s
Is
the
re
inp
ut
of
pu
lse
to
pins
7,
8 and
9 of
IC
702
?
No
Rep
lac
e FFC
be
tw
een
FR
an
d M
B.
If
no
eff
ect,
the
n got
o I
FD
flow
Ye
s
Check
con
ne
cti
on
of
FLD
an
d I
C702.
Rep
lace
IC
702
if O
K.
If no
def
ect,
repl
ace
the
FR
bo
ard
FLD
Sw
itch
Surrou
nd
ing
C
he
ck
Is
the
po
tent
ial
of
the
ba
se
of
Q704
arou
nd
5V
?
Ye
s
Is
the
col
lector
vol
tage
of
Q70
3 abou
t 0V
?
No
Is
the
vol
tage
of
the
base
of
Q70
3 at
3.3V
?
No
Is
pin7
of
CN
70
2
at
3.3V
?
No
Rep
lace
FFC
an
d C
he
ck
pa
tte
rn
near
IC
15
03
of
MB
bo
ard.
Rep
lace
IC
15
03
or
MB
board
if
Y
es
Y
es
Rep
lac
e Q
70
3
Re
pla
ce
the
FR
boar
d
BDP-BX57/S570
9-9
Rep
lac
e Q
70
4
Rep
lac
e Q
70
4
Y
es
No
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