Probably a blown fuse. I have a Tosh SD-K740 DVD Player and replaced the removable 125V 1.6A Glass fuse on the motherboard.
Check the power source?Yes,than unplug,replug it an hour later.Power protection mode will release itself,some the unit it went into power protection modes.
It is possible that the power supply unit in the DVD has failed. You will need to open and ccheck, the fuse might be open and if a new fuse blows out then the SMPS unit is faulty.
Possible that the Sm driver IC /driver has failed. Possible also for allied components to have failed.
Or else you can change with a new unit.
Helpful?
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