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How to set up CR-ROM drive with a Sound Blaster 16?

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    How to set up CR-ROM drive with a Sound Blaster 16?

    Computer is a 386DX-29 running DOS 6.22 and Windows for Workgroups 3.1. I have successfully installed and set up my Sound Blaster 16 model CT1750. I can run Sierra games with the music coming from the SoundBlaster 16.

    I've got a Samsung CD-RW/DVD-ROM drive, and an EPO brand model CR-858E from 2002. The EPO has a mechanical problem of the tray not opening with the button is pushed; I will try to fix that on my own.

    I need to learn how to set up an optical drive with the SB16. The SB16 has IDE pin sets for Mitsumi CD drives (40-pin), Panasonic CD drives (40-pin), and Sony CD drives (34-pin).

    1. Can I use the CD-RW/DVD-ROM drive, or is it not backwards compatible?

    2. Do I need to specifically have a Mitsumi, Panasonic, or Sony brand CD-ROM drive, or can I use any brand that is compatible? How do I know if a brand is compatible?

    3. Do I connect the IDE port on the back of the optical drive to the Sound Blaster card, and the Sound Blaster works as a controller card for the CD-ROM? I've run out of open IDE connectors from my actual controller card. If so, can there be 2 drives on that Sound Blaster IDE channel?

    4. On the back of the optical drives there are ports for digital audio (2-pin) and analog audio (4-pin), and matching pins on the Sound Blaster 16. If I remember correctly, these are for playing audio directly from an ordinary music CD. Are they required or optional? Is there a significant difference between the digital and analog sound? Can I use either, or do I need both?

    IMG_6694 - Screenshot 2021-01-15 023225.jpg
    Sattinger’s Law: “It works better if you plug it in.” 🤯 Corollary: “It works even better if you plug it in correctly.” 🤯🤯
    "The simplest solution is the most likely solution." --My paraphrase of Occam's Razor
    "You can get [a computer] like yours at a garage sale for, like, fifteen dollars," --Strong Sad, sbemail #33

    #2
    The CT1750 has *no* IDE connector. Mitsumi, Panasonic, and Sony are all proprietary connectors from back then for early single- and double-speed drives. Do not connect any IDE device there, it may cause damage.

    For connecting an IDE CD-ROM drive, you would need a newer version of the SB16, like the CT2290 for example.
    Last edited by Timo W.; January 15, 2021, 12:10 AM.

    Comment


      #3
      So I plug the CD drive into my normal IDE controller card instead?

      What about the digital audio connector and analog audio connector? Can I use those to play audio CDs even without the CD drive plugged in to IDE?
      Sattinger’s Law: “It works better if you plug it in.” 🤯 Corollary: “It works even better if you plug it in correctly.” 🤯🤯
      "The simplest solution is the most likely solution." --My paraphrase of Occam's Razor
      "You can get [a computer] like yours at a garage sale for, like, fifteen dollars," --Strong Sad, sbemail #33

      Comment


        #4
        If you have a port free on your normal IDE controller card then yes, you can connect the CD-ROM drive there.

        For CD audio, you connect the analog audio connector to the sound card. Never connect both. There's no digital audio-in on vintage sound cards to connect the digital audio-out anyway.

        Can I use those to play audio CDs even without the CD drive plugged in to IDE?
        If the drive has a physical play button, then yes.

        Comment


          #5
          Be carefull with the analog audio also, in the early days everybody was using different pinouts for those as well.

          Comment


            #6
            Agreed. The Panasonic used L G R G for their drives back then (changed the order for my CR-563-B drive and sound card and others used another layout.

            Look up the pinout for Mitsumi, Panasonic, and Sony CD-ROM audio connections and change the wiring when necessary to match the correct pin layout.
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              #7
              Using the boot disk files from bootdisk.com (DOS 6.22), I have gotten the CD-ROM drive to be readable as a drive letter, and I can discern how to change the CONFIG.SYS and AUTOEXEC.BAT files if I want to change the drive letter, port address, or IRQ. Success!

              The next step is me finding a super-long IDE cable that will reach all the way that I need it to, so I can connect my physical hard drive and CD-ROM on the same IDE channel. To eBay!
              Attached Files
              Sattinger’s Law: “It works better if you plug it in.” 🤯 Corollary: “It works even better if you plug it in correctly.” 🤯🤯
              "The simplest solution is the most likely solution." --My paraphrase of Occam's Razor
              "You can get [a computer] like yours at a garage sale for, like, fifteen dollars," --Strong Sad, sbemail #33

              Comment


                #8
                Originally posted by Timo W. View Post
                The CT1750 has *no* IDE connector. Mitsumi, Panasonic, and Sony are all proprietary connectors from back then for early single- and double-speed drives. Do not connect any IDE device there, it may cause damage.

                For connecting an IDE CD-ROM drive, you would need a newer version of the SB16, like the CT2290 for example.
                As far as I know, the Panasonic interface is ATAPI/IDE compatible, as the Panasonic CR-562B is such a drive.IBM PS/2 Models 76i/77i had IDE interfaces and used an OEM of that drive.

                Comment


                  #9
                  I connected the CD-ROM drive to one of the hard drive IDE channels, put the correct commands in CONFIG.SYS and AUTOEXEC.BAT and I can now read data CDs. I can play audio CDs, but only through the earphone port on the CD-ROM drive. I do have the analog audio cord going from the analog output of the CD-ROM drive to the analog input of the Sound Blaster 16; no CD sound from the sound card. Somehow, I think I remember this same failure mode from years ago. What am I doing wrong?
                  Sattinger’s Law: “It works better if you plug it in.” 🤯 Corollary: “It works even better if you plug it in correctly.” 🤯🤯
                  "The simplest solution is the most likely solution." --My paraphrase of Occam's Razor
                  "You can get [a computer] like yours at a garage sale for, like, fifteen dollars," --Strong Sad, sbemail #33

                  Comment


                    #10
                    Originally posted by Bill-kun View Post
                    I connected the CD-ROM drive to one of the hard drive IDE channels, put the correct commands in CONFIG.SYS and AUTOEXEC.BAT and I can now read data CDs. I can play audio CDs, but only through the earphone port on the CD-ROM drive. I do have the analog audio cord going from the analog output of the CD-ROM drive to the analog input of the Sound Blaster 16; no CD sound from the sound card. Somehow, I think I remember this same failure mode from years ago. What am I doing wrong?
                    Right off the bat I'd double check the CD/SB line and it's connectors on both ends.
                    Surely not everyone was Kung-fu fighting

                    Comment


                      #11
                      Originally posted by Agent Orange View Post
                      Right off the bat I'd double check the CD/SB line and it's connectors on both ends.
                      Using continuity on my multimeter, I verified the analog CD cord has no breaks and that it maps the pins on the back of the CD-ROM drive to the correct pins on the SB16 card. What else should I look for?
                      Sattinger’s Law: “It works better if you plug it in.” 🤯 Corollary: “It works even better if you plug it in correctly.” 🤯🤯
                      "The simplest solution is the most likely solution." --My paraphrase of Occam's Razor
                      "You can get [a computer] like yours at a garage sale for, like, fifteen dollars," --Strong Sad, sbemail #33

                      Comment


                        #12
                        Hmm. Well, it works now. I don't know what could have made the difference. I didn't change anything about the audio cord except unplugging it and replugging it. I did put in a new 36-inch IDE cable that arrived in the mail, so I could put the CD-ROM drive as slave to the 425 MB. hard drive. But whatever. Party on, Wayne.
                        Sattinger’s Law: “It works better if you plug it in.” 🤯 Corollary: “It works even better if you plug it in correctly.” 🤯🤯
                        "The simplest solution is the most likely solution." --My paraphrase of Occam's Razor
                        "You can get [a computer] like yours at a garage sale for, like, fifteen dollars," --Strong Sad, sbemail #33

                        Comment

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