Sony BDP-S485 Service Manual ▷ View online
IF-172 Board Flowchart
V
FD
doe
s n
ot
lig
ht
Is t
here v
ol
tage about
5.8V
at
PS1201?(MB board)
No
Check the +5.8V at CN702 pin7
Is
there t
he FFC d
is
conne
ct
ed
fro
m C
N
70
2?
Is pin5 of I
C
70
2 oscil
lati
ng?
Yes
Is
ther
e i
npu
t of
pu
lse t
o p
ins
7,
8 and
9 of
IC702
?
Yes
Re
pl
ac
e
IC
702
If the symptoms do not improve, repl
ac
e t
he
IF
b
oard
Yes
Yes
Repl
ac
e P
S
120
1(M
B Boa
rd)
If the
sym
ptoms
do not improve
, repl
ac
e
FR
B
oar
d
C
heck
the c
ircuit
s
surro
ung
ing t
he
D
CDC
C
ON
V
ERT
E
R.
Is
th
er
e
vo
lta
ge
a
t CN702 p
in
11?
Re
pl
ac
e
IC
702.
If n
o eff
ect,
re
pl
ac
e t
he
FR B
oa
rd
N
o
N
o
9-9
To IF
con
flowchart
No
No
Check t
he pattern
around
CN1204(MB board)
If the symptoms do not improve, replace MB Board
No
Reconnect the FF
C
If the symptoms do not improve, replace FFC
Y
es
Is
th
er
e v
ol
ta
ge about -25V at JL701?
No
Y
es
Is
the
vol
tage
of
3.3V at IC702 pin 43
and pin13?
No
Y
es
Ch
eck
th
e pa
tte
rn
3
.3
V
li
ne o
f
FR
b
oa
rd
Y
es
To IF
con flowchart
No
Is
th
er
e i
nput pu
ls
e t
o
CN70
2
pi
ns
13,
15
and
16?
To
IF con flow
ch
art
Is
the
FFC disconnect
ed
from CN702?
R
ep
la
ce
F
F
C
. If the symptoms do not
improves, replace IF board
Is
th
ere inp
ut pu
ls
e t
o
CN12
04
pins 13,15 & 16
Reconnect the FFC If the symptoms do not improve, replace FFC
Yes
No
Yes
No
No
Check FFC disconnected from CN702 or broken
Reco
nnect the
FFC
If the symptoms do not improve, change the IF board
Yes
ch
an
ge
IF board
No
BDP-S485
9-10
Rem
ote control does not o
perate
Check of +3.3V voltage at IC701 pin1?
No
(M
B board)
No
To Power supply flow chart
Y
es
No
Ch
eck
FFC disconnected from
CN702 or broken?
Y
es
To IFcon section f
low
chart
Check of appearance waveform during
pressing remote control at IC701 pin2
No
Y
es
Check of +3.3V voltage at CN1204 pin11?
Check of +3.3V voltage at CN702 pin11?
No
Replace FFC
If symptoms do not improve,
Change FR board
Check of appearance waveform during
pressing remote control at CN1204
pin5(MB board)
Y
es
Y
es
Change FR Board
No
Ch
e
ck
of
appearance wavefoa
m
during pressing remote control
at CN702 pin5
No
Replace IC
70
1
If symptoms do not improve,
Change FR board
Check pattern along SIRCS line
If symptom do not improve,
Change FR board
C
h
e
ck
FFC disconnected from
CN702 or broken?
No
Reconnect
FFC
If symptoms do not improve,
Change FFC
Y
es
Y
es
Change FR Board
Y
es
Check pattern around IC701
If symptom do not improve,
Change FR board
BDP-S485
Kara Section Flowchart
Check voltage supply to all ICs:
Yes
No
Yes
No
Replace Q402.Symptom improve?
No
Replace blown fuse. Symptom improve?
9-11
IC401:Pin 8(AU_12V), Pin 4(AU_-12V)
Check the fuse, have the fuse blown?
replace MB board:PS901
Yes
Replace Q401,Q402. Symptom improve?
Check IFCON_MUTE Signal, is there 3.3V atR996?
Yes
No
No
BDP-S485
No
To Power Supply (System) flowchart
MIC does not work
IC402:Pin 8(AU_12V), Pin 4(AU_-12V)
IC403:Pin 8(AU_12V), IC404:Pin 8(AU_12V)
IC904:Pin 8(AU_12V), Pin 4(AU_-12V)
Check XMIC signal,is there 0.6V at Pin 3,CN401
No
Replace IC401,IC402. Symptom improve?
No
Replace the MC Board
Check Mic Mute Signal, is there 3.3V at R972?
Check R1602, is there 3.3V?
Replace IC1203. Symptom improve?
Replace the MB Board
Replace the MB Board
No
No
9-12
O
p
ti
cal
Bl
o
c
k Un
it
(
BU)
I
O
P
ch
eck f
lo
w
(
z
z
) ~
[
B
ef
o
r
e BU Rep
lacem
e
n
t]
O
p
ti
c
al
Bl
o
c
k Un
it
(
BU)
O
P
Dat
a
W
r
it
e F
lo
w
(
y
y)
~
[
A
ft
er
B
U/
M
B
Rep
lacem
e
n
t]
BDP-S
480
c
a
n
play
t
h
e B
D
-d
is
c
BLX-
104
BDP-
S
480
c
a
n
play
t
h
e DV
D/
CD
-d
is
c
Ch
ec
k
Dr
iv
e Pow
e
r
Su
pp
ly
CN301 P
in
3:
12V
/
IC309 P
in
1:
5V
Ch
ec
k
P
S
301,
P
S
302
Replac
e P
S
w
h
e
n
open
Ch
ec
k
/
r
eplac
e t
h
e F
F
C c
abl
e,
t
h
en
c
h
ec
k
BDP-
S
380
oper
at
es
n
or
m
al
ly
OPT-001
F
F
C
c
able
(1
-838-
6
1
5
-1
1)
SPD
-001
F
F
C c
a
bl
e (
1
-838-
617-
1
1)
C
h
e
c
k th
e
Op
ti
ca
l
B
lo
c
k U
n
it
(B
U
)
b
y
s
e
rv
ic
e m
o
de.
(
F
low
c
har
t
zz)
BU I
O
P
is
OK?
Replac
e t
h
e O
p
ti
c
a
l
B
loc
k
Un
it
(
B
U)
O
pt
ic
al B
loc
k
Un
it
(
B
U)
r
epl
ac
e
(Fl
o
w
c
h
a
rt y
y
)
OK
O
p
ti
c
a
l B
loc
k
or
B
U
n
o
pr
oblem
DV
D:
HLX-
513
CD:
HLX-
A1
NO
YES
NO
YES
YES
NO
NO
YES
NO
YES
E
n
te
r S
e
rv
ic
e
M
ode
Pre
s
s
<O
PEN/CLOSE>.
, <PLAY
>,
<ST
O
P>
an
d plu
g
in
A
C
P
o
w
e
r
In
s
ide *
S
er
v
ic
e M
ode
M
enu
S
e
le
ct [8
]
D
ri
v
e
In
si
d
e
*D
ri
ve
S
e
le
ct [7
]
OP
C
h
e
c
k
M
e
n
u
In
si
d
e
*OP
C
h
e
c
k M
e
n
u
S
e
le
ct
[2
] d
IOP
th
e
n
p
re
s
s 'E
N
T
E
R
'
S
pec
if
ic
at
io
n
dI
O
P
BD:
6
m
A
D
V
D
, C
D
:
9
m
A
IOP
o
u
t
o
f sp
e
c
ifi
c
a
ti
o
n
n
e
e
d
B
U
replac
em
en
t
O
p
ti
c
a
l B
loc
k
Un
it
(
B
U)
r
eplac
e
(F
lo
wc
ha
rt
yy)
AC Po
w
e
r
OFF
NO
YES
Rem
ov
e t
h
e
def
ec
tiv
e
B
U
f
rom
Loadi
n
g
A
s
s
y
an
d
al
s
o
r
e
m
o
v
e
B
U
in
s
u
la
to
r
(4pc
s
)
Un
pac
k
n
e
w
B
U
an
d
ta
k
e
O
P
Dat
a
B
ar
c
ode ph
ot
o
by
c
am
er
a
A
s
s
e
m
b
le B
U
w
it
h
I
n
s
u
lat
o
rs
t
o
Loadi
n
g
A
s
s
y
(
tig
h
ten
s
c
rew
w
it
h
2k
g
f)
Dec
o
de t
h
e O
P
Dat
a
B
a
rc
ode ph
ot
o us
ing
BD
PRdec.exe
an
d s
av
e
th
e
tes
t
dat
a
to
USB m
e
m
o
ry
(F
il
e
N
a
m
e
:
B
u
D
a
ta
.t
x
t)
E
n
ter
S
e
rv
ic
e
M
ode
an
d
in
s
er
t
US
B
m
e
m
o
ry
to
U
S
B
co
n
n
e
c
to
r
S
e
le
ct [8
]
D
ri
v
e
-->
S
elec
t [
1]
Dr
iv
e O
P
dat
a
W
rit
e
Pre
s
s
ENT
E
R
A
ft
e
r F
in
is
h
in
g
ReW
rit
e
O
P
dat
a
-->
T
u
rn
AC
Po
w
e
r OFF
A
n
d c
on
fir
m
dI
O
P
by
s
elec
t
[7]
O
P
Ch
ec
k
M
e
n
u
t
o
v
e
ri
fy
I
O
P
in
s
p
e
c
if
ic
at
io
n
IO
P
in
s
p
ec
if
ic
at
io
n
-
->
T
u
rn
A
C
P
o
w
e
r
OFF
T
u
rn
P
ow
er
O
N
an
d c
h
ec
k
pl
aybac
k
per
for
m
a
n
c
e u
s
in
g
B
D
,
DV
D an
d CD
BLX-
104
DVD:
HLX
-513
CD:
HLX-
A1
T
he fol
low
ing
cases need
OP
Data
W
ri
te:
(1) Rep
lace
BU (M
B
is
ori
g
inal
)
(2) Repl
ace
M
B
(BU i
s
ori
gi
n
al
)
(3) Rep
lace
both BU and M
B
JI
G requi
rement
Di
gi
tal
camera
(w
it
h
macro
mode)
Barcode decoder (BDPRdec.exe)
in
s
ta
lle
d
in
jig
PC's (j
ig
purpose)
USB memory
ESD free w
o
rk
bench
l
Drive fl
owchart
-+
-+
BDP-S485
Click on the first or last page to see other BDP-S485 service manuals if exist.