• Re: Blu ray player will play Blu Ray and CD, but cannot load DVD

    From ohger1s@gmail.com@21:1/5 to Bob F on Mon Nov 7 13:15:03 2022
    On Monday, November 7, 2022 at 3:46:53 PM UTC-5, 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.

    Your red laser might be getting weak. The red laser reads both conventional DVDs and CDs (blue laser for blu discs), but often weak lasers have trouble reading DVDs first, usually when cold.

    You can try cleaning it, but there's a good chance the laser is getting weak.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Bob F@21:1/5 to All on Mon Nov 7 12:47:01 2022
    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.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Bob F@21:1/5 to ohg...@gmail.com on Mon Nov 7 14:25:23 2022
    On 11/7/2022 1:15 PM, ohg...@gmail.com wrote:
    On Monday, November 7, 2022 at 3:46:53 PM UTC-5, 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.

    Your red laser might be getting weak. The red laser reads both conventional DVDs and CDs (blue laser for blu discs), but often weak lasers have trouble reading DVDs first, usually when cold.

    I just tried playing a CD on it for several minutes, then quickly
    changing to a DVD, with no improvement.


    You can try cleaning it, but there's a good chance the laser is getting weak.

    That makes sense. Since it still works with Blu Ray's, for the moment I
    will set it up along with an old DVD player for the DVD's unless someone
    can make suggestions for getting it working for those.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Peter W.@21:1/5 to Bob F on Tue Nov 8 03:30:56 2022
    On Monday, November 7, 2022 at 3:46:53 PM UTC-5, 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.

    There are adjustment pots on the laser drive (VR1, VR2, VR3). You will need the service manual to know which one does what, but it has been my experience with standard discs that yes, lasers either go out of focus or get weak, and in many cases can be
    adjusted.

    https://www.ebay.com/itm/363537162096

    Peter Wieck
    Melrose Park, PA

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Bob F@21:1/5 to Peter W. on Tue Nov 8 19:03:24 2022
    On 11/8/2022 3:30 AM, Peter W. wrote:
    On Monday, November 7, 2022 at 3:46:53 PM UTC-5, 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.

    There are adjustment pots on the laser drive (VR1, VR2, VR3). You will need the service manual to know which one does what, but it has been my experience with standard discs that yes, lasers either go out of focus or get weak, and in many cases can be
    adjusted.

    https://www.ebay.com/itm/363537162096

    Peter Wieck
    Melrose Park, PA

    I found the service manual for the BD-P3600

    https://elektrotanya.com/cgi-bin/download2.cgi?dk=jvlafopokc3doxjn9arlkq26fl155ebgeylnz7pwatf5juoa&fid=205786&file=samsung_bd-p3600_sm.pdf

    I can not find any reference in it to the VR 1,2,3 adjustments.

    Would there be a separate manual for the internal drive? I find no
    reference to it in this one.

    There are some "deck adjustments" in the manual (page 4-25 to 4-27)
    which are accomplished by entering numbers at certain time using the
    remote control. They only seem to make a bong-bong noise when entered
    soon after powering up, and do not display what the manual says they will.

    The laser assembly seems to be a BDP5G-MAIN Rev 2-3.1 . I cannot so far
    find any service info on that to suggest waht the VR1,2,3 adjustments are.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Peter W.@21:1/5 to All on Wed Nov 9 03:45:56 2022
    The laser assembly seems to be a BDP5G-MAIN Rev 2-3.1 . I cannot so far
    find any service info on that to suggest waht the VR1,2,3 adjustments are.

    That is the one pictured, yes. I expect that you will have to find a service manual for that specific device - or, as I am fond of suggesting, if the alternative is landfill, a little bit of careful experimenting is in order.

    NOTE: You are adjusting the DVD (red) laser!

    https://www.techwalla.com/articles/how-to-adjust-the-laser-in-your-dvd-player

    When the alternative is landfill, extraordinary measures are acceptable.

    Peter Wieck
    Melrose Park, PA

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Charles Lucas@21:1/5 to Peter W. on Tue Nov 15 09:47:34 2022
    On Wednesday, November 9, 2022 at 5:45:59 AM UTC-6, Peter W. wrote:
    The laser assembly seems to be a BDP5G-MAIN Rev 2-3.1 . I cannot so far find any service info on that to suggest waht the VR1,2,3 adjustments are.
    That is the one pictured, yes. I expect that you will have to find a service manual for that specific device - or, as I am fond of suggesting, if the alternative is landfill, a little bit of careful experimenting is in order.

    NOTE: You are adjusting the DVD (red) laser!

    https://www.techwalla.com/articles/how-to-adjust-the-laser-in-your-dvd-player

    When the alternative is landfill, extraordinary measures are acceptable. Peter Wieck
    Melrose Park, PA

    You would need to know the laser power measure of the infrared (red) laser. With multi-format read devices or lasers,
    they have to be calibrated to their specifications. It would be helpful to acquire the owner's manual for that. I stated
    this because for the laser to be calibrated you need to know what you are doing, the laser has to be calibrated to a
    very narrow range and there are several things that affect laser performance. If the laser power is good, check the
    spindle motor and the spindle. Does it "spin" up correctly. You can use a strobe light to check this.

    How about the sled motor? Is the load and eject mechanism in time? etc...

    Provided the detector circuits work and the other electronics work correctly, and the laser is clean, then... we can
    get to the laser adjustments, but you must be extremely cautious and careful with this.

    When we get to the adjustments, you have tracking gain, focus fain, focus offset, tracking offset-- just to name a few
    and you need an oscilloscope to "measure" the wave when doing these adjustments. Infrared can go out of calibration
    very quickly if not done properly (and there is a point of "no return" or "beyond redemption" with these). Similarly, you
    still have to check the blu ray (ultraviolet) too. CD's read linearly. DVD's and Blu Ray's do not. Other formats like .mp3 do.
    Different media do different things and perform at different rates.

    Sometimes replacing the laser pickup is a better alternative and dialing it in (on the calibration) with the same methods
    and equipment indicated prior is a better idea, if you can get the laser pickup inexpensively.

    Best wishes.

    From,

    Charles Lucas

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Bob F@21:1/5 to Bob F on Sat Nov 19 22:40:51 2022
    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.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From ohger1s@gmail.com@21:1/5 to Bob F on Mon Nov 21 07:01:26 2022
    On Sunday, November 20, 2022 at 1:40:29 AM UTC-5, 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.

    It's been *many* years since I played with DVD players (when they became uneconomical to repair), but I recall many lasers being shipped with a solder blob jumper on the ribbon cable to prevent static damage. The blob had to be removed after the laser
    was installed. If the laser doesn't work at all, see if there's a blob jumper on the ribbon. There also might be a trimmer adjustment on the kapton ribbon, but I wouldn't try adjusting that until every option is exhausted. I recall tweaking that a bit
    as the laser got older to improve readability, but pushing it too high would also damage the laser diode IIRC.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Bob F@21:1/5 to ohg...@gmail.com on Mon Nov 21 09:24:04 2022
    On 11/21/2022 7:01 AM, ohg...@gmail.com wrote:
    On Sunday, November 20, 2022 at 1:40:29 AM UTC-5, 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.

    It's been *many* years since I played with DVD players (when they became uneconomical to repair), but I recall many lasers being shipped with a solder blob jumper on the ribbon cable to prevent static damage. The blob had to be removed after the laser
    was installed. If the laser doesn't work at all, see if there's a blob jumper on the ribbon. There also might be a trimmer adjustment on the kapton ribbon, but I wouldn't try adjusting that until every option is exhausted. I recall tweaking that a bit
    as the laser got older to improve readability, but pushing it too high would also damage the laser diode IIRC.


    Excellent advise. The rains are coming, so I will have more indoor time
    to spend on this project.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Bob F@21:1/5 to Bob F on Thu Nov 24 17:50:14 2022
    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.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From ohger1s@gmail.com@21:1/5 to Bob F on Fri Nov 25 06:50:58 2022
    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: fsxNet Usenet Gateway (21:1/5)
  • From Bob F@21:1/5 to ohg...@gmail.com on Fri Nov 25 15:59:26 2022
    On 11/25/2022 6:50 AM, ohg...@gmail.com wrote:
    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 AliExpress 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?

    Or, the DVD LED has failed



    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.

    The could well be true. I notified ALIExpress. It will be interesting
    to see what comes out of that. Shipping the old one back would probably
    cost me a good chunk of what I paid.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From ohger1s@gmail.com@21:1/5 to Bob F on Sat Nov 26 07:01:23 2022
    On Friday, November 25, 2022 at 6:59:33 PM UTC-5, Bob F wrote:
    On 11/25/2022 6:50 AM, ohg...@gmail.com wrote:
    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 AliExpress 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?
    Or, the DVD LED has failed


    I was under the impression that they use the same laser to read CDs and DVDs and a separate laser for the Blu.

    Maybe yours uses three..

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Charles Lucas@21:1/5 to All on Sat Nov 26 07:28:06 2022
    I was under the impression that they use the same laser to read CDs and DVDs and a separate laser for the Blu.

    Maybe yours uses three..

    Interestingly enough, with few exceptions, most devices use just two lasers (one infrared and the other is ultraviolet), based
    upon the wavelength and bandwidth involved of the frequency range to operate the laser. DVD's actually have a high frequency
    band in the infrared range than audio cd's do. Of course, Ultraviolet is another much higher range altogether to operate the
    Blu ray media.

    The focus of the laser light depends upon what the media does and the media used, especially with the infrared laser. Since
    DVD's read non-contiguously (and non-sequentially), as they are not linear in their reading of media, and yet CD's are very
    linear and sequential, the laser treats these media (the CD and the DVD very different). MP3's are even falling into this
    category with "multi-format read" devices (however mp3's are much more compressed audio than an audio CD).

    With the help of the sled motor and the spindle motor.... The machine does its thing.
    Anyway, the laser spot has to read according to what the machine identifies as a type of media in its tray within
    the load/eject mechanism. Then the detector system and the comparator determine correct focus. Based upon
    the detection system's compensation, the wavelength it reads at, and the frequency its reads to, it determines
    whether it is a CD, a DVD, an mp3 or a blu ray disc. The output follows through based upon what the machine
    says it is. If not, you get an error. Either way, the machine answers you- based upon what you put into it on the
    basis of the standards for each media the machine performs on.

    Hope this helps. Good Luck.

    Sincerely,


    Charles Lucas

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Bob F@21:1/5 to Bob F on Sat Dec 3 11:47:11 2022
    On 11/25/2022 3:59 PM, Bob F wrote:
    On 11/25/2022 6:50 AM, ohg...@gmail.com wrote:
    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 AliExpress 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?

    Or, the DVD LED has failed



    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.

    The could well be true.  I notified ALIExpress. It will be interesting
    to see what comes out of that. Shipping the old one back would probably
    cost me a good chunk of what I paid.

    I had to send ALIExpress a video showing the player ejecting discs with
    the "cannot load" message on the screen, and they refunded my money
    after receiving that. I will try adjusting my original after
    re-installing it.

    --- SoupGate-Win32 v1.05
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  • From ohger1s@gmail.com@21:1/5 to Bob F on Mon Dec 5 06:56:03 2022
    On Saturday, December 3, 2022 at 2:47:19 PM UTC-5, Bob F wrote:
    On 11/25/2022 3:59 PM, Bob F wrote:
    On 11/25/2022 6:50 AM, ohg...@gmail.com wrote:
    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 AliExpress 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?

    Or, the DVD LED has failed



    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.

    The could well be true. I notified ALIExpress. It will be interesting
    to see what comes out of that. Shipping the old one back would probably cost me a good chunk of what I paid.
    I had to send ALIExpress a video showing the player ejecting discs with
    the "cannot load" message on the screen, and they refunded my money
    after receiving that. I will try adjusting my original after
    re-installing it.

    Well, that's good at least. I have the same problem with buying some used boards from ebay. I carefully watch the seller's feedback rating and won't buy from any seller that isn't high 99 percent positive.

    They all say they come from working items but the reality is that they're being parted out mostly because something is wrong. About 20% of parts I buy from ebay are defective, but better sellers will just refund.

    --- SoupGate-Win32 v1.05
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  • From Peter W.@21:1/5 to All on Mon Dec 5 06:18:36 2022
    I had to send ALIExpress a video showing the player ejecting discs with
    the "cannot load" message on the screen, and they refunded my money
    after receiving that. I will try adjusting my original after
    re-installing it.

    When the alternative is landfill, heroic and/or desperate measures are acceptable.

    Peter Wieck
    Melrose Park, PA

    --- SoupGate-Win32 v1.05
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