DV-SP500
TROUBLE SHOOTING
No Power ON
FL is not turned ON
FL indication is unusual
START
Is FL turn on ?
Is tray open ?
Is the indication
of FL normal ?
Do the video and
sound come on ?
Power ON
Yes
Yes
Yes
Yes
No
No
No
Turn on the power again
after 2 - 3 minutes.
Blow out fuse of the primary side
Blow out micro-fuse on the POWER SUPPLY Unit. (Check the each voltage.)
(P901(Output PCB) and CN2(Power supply unit))
FL controller IC (Q701) on the Display PCB Assy is damaged.
Blow out micro-fuse on the POWER SUPPLY Unit.
FL indication is dark or flickers.
No
Indicates the error message
Refer to the section "ERROR CODE".
Refer to the section " ERROR CODE".
Check the connection between OUTPUT PC BOARD Assy and
DVD MAIN PC BOARD Assy.
Indicate the error message
on FL tube.
Check the following connections :
POWER SUPPLY Unit - DVD MAIN PC BOARD Assy
DVD MAIN PC BOARD Assy - DISPLAY PC BOARD Assy
OUTPUT PC BOARD Assy - FL Tube Assy
Check each voltage (EV+5V, SW+5V, SW+3.3V, +6V and +12V)
(If above voltage are not supplied, check the micro-fuse CP1 and CP2.)
Check the following connections :
DVD MAIN PC BOARD Assy - LOAB Assy (5P connector CN51-CN601)
DVD MAIN PC BOARD Assy - CONNECTION PC BOARD Assy(without DV-S555)
Check the +6V and +12V power supply voltage
(If above voltage is not supplied, check the micro-fuse CP1 and CP2.)
Check the following connections :
DVD MAIN PC BOARD Assy - CONNECTION PC BOARD Assy
(17P flexible cable)
CONNECTION PC BOARD Assy - Spindle motor (12P flexible cable)
CONNECTION PC BOARD Assy - Stepping motor (4P flexible cable)
Check the +6V and +12V power supply voltage
(If above voltage is not supplied, check the micro-fuse CP1 and CP2.)
Check the following connection :
DVD MAION PC BOARD Assy - Pickup Assy (26P flexible cable)
Check the +6V and +12V power supply voltage and SW+5V
(If +6V voltage is not supplied, check the micro-fuse CP1 and CP2.)
Check it whether the pickup is defectiveness.
Short or open the zenner diode
on the POWER SUPPLY Unit.
OK
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TEL 13942296513 QQ 376315150 892498299