hi i have been given a sony DAV-S400 home cinema system wich worked fine when my friend had it and i left it in my room for a while and now i have gone to use it it wont read dvds but it will play cd's no problem, i have taken the case off and cleaned the lazer lense but it still wont read them, all the discs are clean and free from scratches.i didnt notice anything loose or broken off inside either. any help would be much appreciated to save me forking out for a repair shop to look at it. cheers
Laser has been affected, either by damp / condensation and needs to be realigned / replaced. Reason CDs play and not DVDs is because cds use a different laser wavelength and its not as taxing for the unit to be able to focus on the data unlike DVD media.