7.1.2 TROUBLE SHOOTING
� No Power ON � FL is not turned ON � FL indication is unusual
START
Power ON
� Blow out fuse of the primary side � Blow out micro-fuse on the POWER SUPPLY Assy. (Check the each voltage.) (P611, P211, R711) � FL controller IC (IC101) on the FLKY Assy is damaged.
Turn on the power again after 2 - 3 minutes. � Check the following connections : POWER SUPPLY Assy - DVDM Assy DVDM Assy - FLKY Assy FLKY Assy - PWSB Assy � Check each voltage (EV+5V, SW+5V, SW+3.3V, +6V and +12V) (If above voltage are not supplied, check the micro-fuse.)
Is FL turn on ? Yes
No
Is the indication of FL normal ? Yes
No FL indication is dark or flickers.
� Short or open the zenner diode on the POWER SUPPLY Assy. (D513) � Check the values of R118 - R120 on the FLKY Assy.
Indicates the error message
Refer to the section "7.1.3 ERROR CODE".
� Blow out micro-fuse on the POWER SUPPLY Assy. (R711)
Is tray open ? Yes
No
� Check the connection between LOSB Assy and DVDM Assy. (12P flexible cable) � Check the +6V power supply voltage (above micro fuse).
Do the video and sound come on ? Yes
No
Check the connection between JCKB Assy and DVDM Assy. A video isn't displayed. Check the connection between VQEB Assy and DVDM Assy. Refer to the section "7.1.3 ERROR CODE".
