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DVD-V7400, DVD-V7300D
• No Power ON
START
Is tray open ?
Do the video and
sound come on ?
Power ON
Yes
Yes
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 Assy. (Check the each voltage.)
(P211, R711)
• MODE controller IC (IC101) on the SUBB Assy is damaged.
• Blow out micro-fuse on the POWER SUPPLY Assy.
(R711)
• Check the connection between LOSB Assy and DVDM Assy.
(12P flexible cable)
• Check the +6V power supply voltage (above micro fuse).
No
Check the connection between JACB Assy and DVDM Assy.
OK
7.1.4 TROUBLE SHOOTING