Diagnosis; Diagnosis Flowchart - Pioneer BDP-330 Service Manual

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5. DIAGNOSIS

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5.1 DIAGNOSIS FLOWCHART

[1] POWER PWB UNIT, POWER ASS'Y [1] POWER PWB UNIT, POWER ASS'Y
A
FLOW CHART No. 1 FLOW CHART No. 1
Is the 12V power supplied to pins (2, 3 and 4) Is the 12V power supplied to pins (2, 3 and 4)
of SC9001 inside MAIN PWB UNIT (AT_12V) of SC9001 inside MAIN PWB UNIT (AT_12V)
while AC is ON and the power source is OFF? while AC is ON and the power source is OFF?
Are pins (2 and 5) causing short-circuit while AC Are pins (2 and 5) causing short-circuit while AC
is OFF and SC9001 inside MAIN PWB UNIT has is OFF and SC9001 inside MAIN PWB UNIT has
its housing open? its housing open?
B
Is the 12V power supplied to pins (2, 3 and 4) of Is the 12V power supplied to pins (2, 3 and 4) of
CN901 inside POWER PWB UNIT or POWER ASS'Y CN901 inside POWER PWB UNIT or POWER ASS'Y
(AT_12V) while AC is ON an the power source is OFF? (AT_12V) while AC is ON an the power source is OFF?
Check between CN901 inside Check between CN901 inside
POWER ASS'Y POWER ASS'Y and SC9001 inside MAIN PWB UNIT and and SC9001 inside MAIN PWB UNIT and
their peripheral circuits. their peripheral circuits.
(e.g. nearly detached connector, disconnection) (e.g. nearly detached connector, disconnection)
[2] DRIVE ASS'Y [2] DRIVE ASS'Y
FLOW CHART No. 1
FLOW CHART No. 1
C
Does the problem (discs cannot be played back Does the problem (discs cannot be played back
stably) happen only to certain discs? stably) happen only to certain discs?
TE
Does the problem happen only to BD, DVD or CD? Does the problem happen only to BD, DVD or CD?
L 13942296513
Is the error rate wrong? Is the error rate wrong?
1Check the drive relay board (BRIDGE ASS'Y) and circuits 1Check the drive relay board (BRIDGE ASS'Y) and circuits
around CN101 and CN104. around CN101 and CN104.
D
Check any connector nearly detached or obliquely Check any connector nearly detached or obliquely
inserted. inserted.
Check any disconnected pattern etc.
Check any disconnected pattern etc.
2Replace and check MAIN PWB UNIT 2Replace and check MAIN PWB UNIT
3Replace and check BD drive 3Replace and check BD drive
FLOW CHART No. 2 FLOW CHART No. 2
Does SLED MOTOR Does SLED MOTOR
initialize while the initialize while the
power is ON? power is ON?
E
YES YES
Does it load?
Does it load?
(It is not loading) (It is not loading)
www
YES YES
Does the spindle Does the spindle
revolve when a disc revolve when a disc
is inserted? is inserted? (The spindle
F
motor is not
revolving)
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2
Power does not come ON. Power does not come ON.
NO
NO
YES YES
YES YES
POWER PWB UNIT or POWER PWB UNIT or
BD drive does not operate properly. BD drive does not operate properly.
NO NO
(The problem happens (The problem happens
NO NO to all discs.)
to all discs.)
NO NO
MAIN PWB Unit is likely MAIN PWB Unit is likely
to have broken down. to have broken down.
Discs cannot be played back stably. Discs cannot be played back stably.
1Check the drive relay board (BRIDGE ASS'Y) and circuits around CN101 and CN104. 1Check the drive relay board (BRIDGE ASS'Y) and circuits around CN101 and CN104.
NO NO
Check any connector nearly detached or obliquely inserted.
Check any connector nearly detached or obliquely inserted.
(SLED is not
(SLED is not
Check any disconnected pattern etc. Check any disconnected pattern etc.
2Replace and check MAIN PWB UNIT 2Replace and check MAIN PWB UNIT
operating) operating)
3Replace and check BD drive
3Replace and check BD drive
1Check the drive relay board (BRIDGE ASS'Y) and circuits around CN102 and CN104. 1Check the drive relay board (BRIDGE ASS'Y) and circuits around CN102 and CN104.
NO NO
Check any connector nearly detached or obliquely inserted. Check any connector nearly detached or obliquely inserted.
Check any disconnected pattern etc. Check any disconnected pattern etc.
2Replace and check MAIN PWB UNIT 2Replace and check MAIN PWB UNIT
3Replace and check BD drive 3Replace and check BD drive
x ao
1Check the drive relay board (BRIDGE ASS'Y) and circuits around CN103 and CN104. 1Check the drive relay board (BRIDGE ASS'Y) and circuits around CN103 and CN104. y
NO NO
Check any connector nearly detached or obliquely inserted. Check any connector nearly detached or obliquely inserted.
(The spindle
. i
Check any disconnected pattern etc. Check any disconnected pattern etc.
motor is not
2Replace and check MAIN PWB UNIT 2Replace and check MAIN PWB UNIT
revolving)
3Replace and check BD drive 3Replace and check BD drive
2
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8
The The
POWER PWB UNIT or POWER ASS'Y POWER PWB UNIT or POWER ASS'Y
YES YES
(12V power is supplied) (12V power is supplied)
Replace and check MAIN PWB UNIT.
Replace and check MAIN PWB UNIT.
NO
NO Replace and check MAIN PWB UNIT. Replace and check MAIN PWB UNIT.
(Short-circuit is being caused in the MAIN PWB UNIT) (Short-circuit is being caused in the MAIN PWB UNIT)
Replace and check POWER PWB UNIT or POWER Replace and check POWER PWB UNIT or POWER
NO NO
ASS'Y. ASS'Y.
(The circuit up to 12V generation in POWER PWB UNIT
(The circuit up to 12V generation in POWER PWB UNIT
or POWER ASS'Y has broken down) or POWER ASS'Y has broken down)
(In case discs cause the problem) (In case discs cause the problem)
YES YES
1Check any dirt on discs 1Check any dirt on discs
2Check whether the problem is disc-specific 2Check whether the problem is disc-specific
YES YES
Q Q
(In case LD breakdown etc. causes the problem) (In case LD breakdown etc. causes the problem)
3 6 7 1 3
Replace and check BD drive Replace and check BD drive
(In case the problem derives from PU breakdown or (In case the problem derives from PU breakdown or
YES YES
disc-related factors) disc-related factors)
1Check any dirt on discs
1Check any dirt on discs
2Check whether the problem is disc-specific 2Check whether the problem is disc-specific
3Replace and check BD drive 3Replace and check BD drive
u163
.
BDP-330
3
4
2 9 9 4 2 8
is normal. is normal.
1 5 0 5 8 2 9 9 4
(e.g. Pirated version) (e.g. Pirated version)
MAIN PWB Unit is likely
MAIN PWB Unit is likely
to have broken down. to have broken down.
MAIN PWB Unit is likely MAIN PWB Unit is likely
m
to have broken down. to have broken down.
co
MAIN PWB Unit is likely MAIN PWB Unit is likely
to have broken down. to have broken down.
4
9 9
2 8 9 9