Problem with my Sega CDX

[Tokimemofan]

I just thought it might be a laser problem thank you for clearing it up .

Tomorrow I'll pop the lid on mine and see if I can find any leads.
Edit: just opened mine, you should get the BIOS background screen even when the CD daughterboard is missing, on the mother board look for IC numbers 1, 5,9, and 14, they should be in a square arrangement, the bios is IC11, check the area around all 5 of them for any damage. Also check the power supply daughter board, it is possible that one of the lines is damaged. Just a warning before you get out a screw driver, this is easily one of the hardest systems to open for a first timer since you will not be able to see everything you are doing.