From: ohg...@gmail.com   
      
   On Thursday, November 24, 2022 at 8:50:21 PM UTC-5, Bob F wrote:   
   > On 11/19/2022 10:40 PM, Bob F wrote:   
   > > On 11/7/2022 12:47 PM, Bob F wrote:   
   > >> Samsung BD-P3600 was intermittent for a while on DVDs but now always   
   > >> shows "The disc can not be played" when a DVD is loaded. CD's and Blu   
   > >> Ray disks work perfectly.   
   > >>   
   > >> I tried holding "PLAY" or "PAUSE" for 8 seconds to reset to factory   
   > >> settings with no effect. (Does nothing)   
   > >>   
   > >> Any ideas about getting it working would be appreciated.   
   > >   
   > >   
   > > Update:   
   > >   
   > > I just received a replacement laser unit from Alibaba in China for $15.   
   > > Hopefully, I can just remove the old one and replace it and it will   
   > > work. Or will the replacement still need calibration adjustments that I   
   > > still have found no service manual for.   
   > >   
   > > The order was made 11/8, promised for Dec 2, and receive Nov 19. That   
   > > surprised me.   
   > I tried this replacement today. It would not load cd's, DVD's, or Blue   
   > ray discs. Maybe needs adjustment, but I do not have much info on that   
   > process. Since none of the disc types works, I don't have much hope for   
   > that. I did not find any kind of jumper to remove. It looks just like   
   > the origional.   
   >   
   > I put the old one back in with the previous problem continues. I did   
   > find that it hardly moves the disc at all on DVD's, but spins up CD's   
   > and BluRay's quickly. Even blank CD's and DVD's do not change the   
   > results. The DVD's still do not spin, the CD's spin and search for awhile.   
   >   
   > How does the player detect the type of disc? It seems like for DVD's it   
   > is very quickly giving up on spinning the disc.   
   >   
   > I did find a youtube on a very similar disc player that includes what   
   > looks like the same laser head unit. SOH-BDP5G   
   > https://www.youtube.com/watch?v=9bXWrO9CLDs   
   >   
   > From that, I learned the the VR1 is for BD, VR2 for DVD, and VR3 is CD.   
   >   
   > I guess the next step is to get out the scope for adjustment.   
      
      
   I admit I'm confused by your original symptom of the machine not giving the   
   DVD more than a brief sniff before bailing.  My only guess is  that it's not   
   reading any reflection back with the DVD.  Maybe DVDs are a bit less   
   reflective than CDs?   
      
   As far as the "new" drive, I think it's very likely that the drive you   
   received is junk probably pulled from a defective machine that arrived in one   
   of the thousands of containers of scrap electronics that get shipped back to   
   China every year.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)