26
BDP-330
1
2
3
4
A
B
C
D
E
F
1
2
3
4
5. DIAGNOSIS
5.1 DIAGNOSIS FLOWCHART
[1] POWER PWB UNIT, POWER ASS
’
Y
[2] DRIVE ASS
’
Y
FLOW CHART No. 1
Power does not come ON.
YES
(12V power is supplied)
Repl
a
ce
a
nd check MAIN PWB UNIT.
NO
Repl
a
ce
a
nd check MAIN PWB UNIT.
(Short-circuit is being c
a
used in the MAIN PWB UNIT)
YES
YES
NO
NO
Repl
a
ce
a
nd check POWER PWB UNIT or POWER
ASS
’
Y.
(The circuit up to 12V gener
a
tion in POWER PWB UNIT
or POWER ASS
’
Y h
a
s broken down)
BD drive does not oper
a
te properly.
YES
NO
NO
Does the spindle
revolve when
a
disc
is inserted?
FLOW CHART No. 1
Discs c
a
nnot be pl
a
yed b
a
ck st
a
bly.
YES
(In c
a
se discs c
a
use the problem)
1
Check
a
ny dirt on discs
2
Check whether the problem is disc-specific
NO
YES
(In c
a
se LD bre
a
kdown etc. c
a
uses the problem)
Repl
a
ce
a
nd check BD drive
NO
YES
Is the error r
a
te wrong?
(In c
a
se the problem derives from PU bre
a
kdown or
disc-rel
a
ted f
a
ctors)
1
Check
a
ny dirt on discs
2
Check whether the problem is disc-specific
3
Repl
a
ce
a
nd check BD drive
NO
Is the 12V power supplied to pins (2,
3
a
nd 4)
of SC9001 inside MAIN PWB UNIT (AT_12V)
while AC is ON
a
nd the power source is OFF?
The
POWER PWB UNIT or POWER ASS
’
Y
is norm
a
l.
Are pins (2
a
nd 5) c
a
using short-circuit while AC
is OFF
a
nd SC9001 inside MAIN PWB UNIT h
a
s
its housing open?
Is the 12V power supplied to pins (2,
3
a
nd 4) of
CN901 inside POWER PWB UNIT or POWER ASS'Y
(AT_12V) while AC is ON
a
n the power source is OFF?
Check between CN901 inside
POWER PWB UNIT or
POWER ASS
’
Y
a
nd SC9001 inside MAIN PWB UNIT
a
nd
their peripher
a
l circuits.
(e.g. ne
a
rly det
a
ched connector, disconnection)
Does the problem (discs c
a
nnot be pl
a
yed b
a
ck
st
a
bly) h
a
ppen only to cert
a
in discs?
Does the problem h
a
ppen only to BD, DVD or CD?
(The problem h
a
ppens
to
a
ll discs.)
MAIN PWB Unit is likely
to h
a
ve broken down.
1
Check the drive rel
a
y bo
a
rd (BRIDGE ASS
’
Y)
a
nd circuits
a
round CN101
a
nd CN104.
Check
a
ny connector ne
a
rly det
a
ched or obliquely
inserted.
Check
a
ny disconnected p
a
ttern etc.
(e.g. Pir
a
ted version)
2
Repl
a
ce
a
nd check MAIN PWB UNIT
MAIN PWB Unit is likely
to h
a
ve broken down.
1
Check the drive rel
a
y bo
a
rd (BRIDGE ASS
’
Y)
a
nd circuits
a
round CN101
a
nd CN104.
Check
a
ny connector ne
a
rly det
a
ched or obliquely inserted.
Check
a
ny disconnected p
a
ttern etc.
2
Repl
a
ce
a
nd check MAIN PWB UNIT
3
Repl
a
ce
a
nd check BD drive
MAIN PWB Unit is likely
to h
a
ve broken down.
1
Check the drive rel
a
y bo
a
rd (BRIDGE ASS
’
Y)
a
nd circuits
a
round CN102
a
nd CN104.
Check
a
ny connector ne
a
rly det
a
ched or obliquely inserted.
Check
a
ny disconnected p
a
ttern etc.
2
Repl
a
ce
a
nd check MAIN PWB UNIT
3
Repl
a
ce
a
nd check BD drive
MAIN PWB Unit is likely
to h
a
ve broken down.
1
Check the drive rel
a
y bo
a
rd (BRIDGE ASS
’
Y)
a
nd circuits
a
round CN10
3
a
nd CN104.
Check
a
ny connector ne
a
rly det
a
ched or obliquely inserted.
Check
a
ny disconnected p
a
ttern etc.
2
Repl
a
ce
a
nd check MAIN PWB UNIT
3
Repl
a
ce
a
nd check BD drive
(It is not lo
a
ding)
(The spindle
motor is not
revolving)
[1] POWER PWB UNIT, POWER ASS
’
Y
[2] DRIVE ASS
’
Y
FLOW CHART No. 1
Power does not come ON.
YES
(12V power is supplied)
Repl
a
ce
a
nd check MAIN PWB UNIT.
NO
Repl
a
ce
a
nd check MAIN PWB UNIT.
(Short-circuit is being c
a
used in the MAIN PWB UNIT)
YES
YES
NO
NO
Repl
a
ce
a
nd check POWER PWB UNIT or POWER
ASS
’
Y.
(The circuit up to 12V gener
a
tion in POWER PWB UNIT
or POWER ASS
’
Y h
a
s broken down)
BD drive does not oper
a
te properly.
YES
NO
NO
Does the spindle
revolve when
a
disc
is inserted?
FLOW CHART No. 1
Discs c
a
nnot be pl
a
yed b
a
ck st
a
bly.
YES
(In c
a
se discs c
a
use the problem)
1
Check
a
ny dirt on discs
2
Check whether the problem is disc-specific
NO
YES
(In c
a
se LD bre
a
kdown etc. c
a
uses the problem)
Repl
a
ce
a
nd check BD drive
NO
YES
Is the error r
a
te wrong?
(In c
a
se the problem derives from PU bre
a
kdown or
disc-rel
a
ted f
a
ctors)
1
Check
a
ny dirt on discs
2
Check whether the problem is disc-specific
3
Repl
a
ce
a
nd check BD drive
NO
Is the 12V power supplied to pins (2,
3
a
nd 4)
of SC9001 inside MAIN PWB UNIT (AT_12V)
while AC is ON
a
nd the power source is OFF?
The
POWER PWB UNIT or POWER ASS
’
Y
is norm
a
l.
Are pins (2
a
nd 5) c
a
using short-circuit while AC
is OFF
a
nd SC9001 inside MAIN PWB UNIT h
a
s
its housing open?
Is the 12V power supplied to pins (2,
3
a
nd 4) of
CN901 inside POWER PWB UNIT or POWER ASS'Y
(AT_12V) while AC is ON
a
n the power source is OFF?
Check between CN901 inside
POWER PWB UNIT or
POWER ASS
’
Y
a
nd SC9001 inside MAIN PWB UNIT
a
nd
their peripher
a
l circuits.
(e.g. ne
a
rly det
a
ched connector, disconnection)
Does the problem (discs c
a
nnot be pl
a
yed b
a
ck
st
a
bly) h
a
ppen only to cert
a
in discs?
Does the problem h
a
ppen only to BD, DVD or CD?
(The problem h
a
ppens
to
a
ll discs.)
MAIN PWB Unit is likely
to h
a
ve broken down.
1
Check the drive rel
a
y bo
a
rd (BRIDGE ASS
’
Y)
a
nd circuits
a
round CN101
a
nd CN104.
Check
a
ny connector ne
a
rly det
a
ched or obliquely
inserted.
Check
a
ny disconnected p
a
ttern etc.
(e.g. Pir
a
ted version)
2
Repl
a
ce
a
nd check MAIN PWB UNIT
MAIN PWB Unit is likely
to h
a
ve broken down.
1
Check the drive rel
a
y bo
a
rd (BRIDGE ASS
’
Y)
a
nd circuits
a
round CN101
a
nd CN104.
Check
a
ny connector ne
a
rly det
a
ched or obliquely inserted.
Check
a
ny disconnected p
a
ttern etc.
2
Repl
a
ce
a
nd check MAIN PWB UNIT
3
Repl
a
ce
a
nd check BD drive
MAIN PWB Unit is likely
to h
a
ve broken down.
1
Check the drive rel
a
y bo
a
rd (BRIDGE ASS
’
Y)
a
nd circuits
a
round CN102
a
nd CN104.
Check
a
ny connector ne
a
rly det
a
ched or obliquely inserted.
Check
a
ny disconnected p
a
ttern etc.
2
Repl
a
ce
a
nd check MAIN PWB UNIT
3
Repl
a
ce
a
nd check BD drive
MAIN PWB Unit is likely
to h
a
ve broken down.
1
Check the drive rel
a
y bo
a
rd (BRIDGE ASS
’
Y)
a
nd circuits
a
round CN10
3
a
nd CN104.
Check
a
ny connector ne
a
rly det
a
ched or obliquely inserted.
Check
a
ny disconnected p
a
ttern etc.
2
Repl
a
ce
a
nd check MAIN PWB UNIT
3
Repl
a
ce
a
nd check BD drive
(It is not lo
a
ding)
(The spindle
motor is not
revolving)
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TEL 13942296513 QQ 376315150 892498299
