Sound Blaster CT1770 w/SCSI info ?

Discussion about old sound cards, MIDI devices and sound related accessories.

Sound Blaster CT1770 w/SCSI info ?

Postby Intel486dx33 » 2019-8-03 @ 00:34

Does anyone know anything about this Sound Blaster 16 card ?
It is a CT1770 with Adaptec SCSI.

What driver package should I use to install in DOS/Win3.11 ?
It has a Yamaha OPL3 too.

Do I need a driver for the SCSI CDROM to work ?
Or do I just need to configure the onboard SCSI jumpers ?
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026F2EBE-D362-49A1-AC27-0B592D4419B8.jpeg
072CB6AA-D830-450B-A41C-3F03FF88FB07.jpeg
5CE17D82-D26C-49A1-B272-21C8E0630A0A.jpeg
Last edited by Intel486dx33 on 2019-8-13 @ 16:07, edited 1 time in total.
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Re: SB CT1770 w/SCSI info ?

Postby derSammler » 2019-8-03 @ 07:13

Similar to an IDE CD-ROM, you need a driver in your config.sys. For SCSI, that is an ASPI CD driver. For that to work, you also need to load the ASPI interface driver for the SCSI chipset. You also need to load MSCDEX like with any other drive. Problem is, since you need more stuff to load (ASPI layer), an SCSI CD-ROM will eat up more precious memory under DOS.

ps: you can use the Win9x boot floppy to grap all files you need, it has support for SCSI CD-ROM drives.

pps: why is this in "Sound"?
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Re: SB CT1770 w/SCSI info ?

Postby Intel486dx33 » 2019-8-03 @ 15:31

derSammler wrote:Similar to an IDE CD-ROM, you need a driver in your config.sys. For SCSI, that is an ASPI CD driver. For that to work, you also need to load the ASPI interface driver for the SCSI chipset. You also need to load MSCDEX like with any other drive. Problem is, since you need more stuff to load (ASPI layer), an SCSI CD-ROM will eat up more precious memory under DOS.

ps: you can use the Win9x boot floppy to grap all files you need, it has support for SCSI CD-ROM drives.

pps: why is this in "Sound"?


Because it is a sound card ?
I think it came with Adaptec EZ SCSI install diskette for DOS.
Which SB16 install package has support for the Yamaha OPL3 and Win3x apps ?
I don’t have these install diskettes but this is the software it came with.
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Re: SB CT1770 w/SCSI info ?

Postby derSammler » 2019-8-03 @ 16:34

Because it is a sound card ?

But your question was mainly about SCSI.

You really don't need the Adaptec software, it installs lots of unneeded crap anyway. As wrote before, grab the files from a Win9x boot disk. You need aspi4dos.sys and aspicd.sys (file names may differ).
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Re: SB CT1770 w/SCSI info ?

Postby skitters » 2019-8-05 @ 16:34

I bought one of these ct1770 cards along with a compatible SCSI CD drive over 10 years ago from a guy on eBay.
I finally got it working using a set of DOS drivers on driverguide, but that was over 10 years ago.

Anyway, if it's at all helpful, here are the autoexec.bat and config.sys from the computer that show the names of the SCSI drivers that were loaded.

autoexec.bat
@ECHO OFF
SET SOUND=C:\SB16
SET BLASTER=A220 I5 D1 H5 P330 T6
SET MIDI=SYNTH:1 MAP:E
C:\SB16\DIAGNOSE /S
C:\SB16\MIXERSET /P /Q
@ECHO OFF
PROMPT $p$g
PATH C:\DOS;C:\SB16
SET TEMP=C:\DOS\TEMP
LH C:\DOS\MSCDEX.EXE /D:MYCD /M:8 /V
CTMOUSE2.COM


config.sys
DEVICE=C:\SCSI\ASPI2DOS.SYS /D /Z
rem DEVICE=C:\DOS\SETVER.EXE
DEVICE=C:\DOS\HIMEM.SYS
DEVICE=C:\DOS\EMM386.EXE NOEMS
DOS=HIGH,UMB
REM ** FILES=30
FILES=40
DEVICEHIGH=C:\SCSI\ASPICD.SYS /D:MYCD
Last edited by skitters on 2019-8-05 @ 18:12, edited 1 time in total.
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Re: SB CT1770 w/SCSI info ?

Postby SirNickity » 2019-8-05 @ 17:15

SCSI in DOS has always been really clumsy. You need either the specific driver disk for the hardware you have, or you can just install EZ-SCSI and be done with it. The installer is really good about finding all the supported chipsets and installing the right driver in config.sys. Far easier to do that, than to go and figure out which aspiX driver goes with which chip, and then figure out what parameters the driver supports and whether you need to supply any of them. I use version 5. Good for DOS, Win 3.x, Win95.

Aside from that, any SB16 package will cover the hardware north of the SCSI chipset.
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Re: SB CT1770 w/SCSI info ?

Postby RiP » 2019-8-11 @ 20:40

Does anyone have all of the latest CT1770 drivers for Dos, Win3.x, Win9x ? :confused:
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Re: Sound Blaster CT1770 w/SCSI info ?

Postby Anonymous Coward » 2019-8-15 @ 00:39

CT1770 with ASP is the king of SB16.
Will the highways on the internets become more few?
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Re: Sound Blaster CT1770 w/SCSI info ?

Postby jaZz_KCS » 2019-8-15 @ 11:02

Anonymous Coward wrote:CT1770 with ASP is the king of SB16.


So basically, a CT1740 (ASP soldered down out of the box) is the king of SB16 (if SCSI is not of interest) :)

RiP wrote:Does anyone have all of the latest CT1770 drivers for Dos, Win3.x, Win9x ? :confused:


See attachments.
Attachments
sbw9xup.exe
Win9x driver update
(311.97 KiB) Downloaded 3 times
sbbasic.exe
DOS+Win3.1
(1.15 MiB) Downloaded 6 times
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Re: Sound Blaster CT1770 w/SCSI info ?

Postby RiP » 2019-8-15 @ 12:48

Thanks a lot.

I saw no ROM at startup for CT1770. Is it normal?
I thought it should have BIOS ROM =/

I have also noticed that its volume control in the back panel makes no difference at all :confused:
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Re: Sound Blaster CT1770 w/SCSI info ?

Postby jaZz_KCS » 2019-8-15 @ 14:08

It doesnt have a BIOS rom that hooks on boot-up.
And you probably have the jumper that controls whether the Speaker-Out is amplified or not set to "no". Which results in it becoming a Line-Out that is not amplified and doesn't adhere to the volume knob.
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Re: Sound Blaster CT1770 w/SCSI info ?

Postby RiP » 2019-8-15 @ 21:15

jaZz_KCS wrote:It doesnt have a BIOS rom that hooks on boot-up.
And you probably have the jumper that controls whether the Speaker-Out is amplified or not set to "no". Which results in it becoming a Line-Out that is not amplified and doesn't adhere to the volume knob.

You're right, thanks :cool:

It has AMAZING sound quality o.0
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Re: Sound Blaster CT1770 w/SCSI info ?

Postby Intel486dx33 » 2019-8-18 @ 10:40

jaZz_KCS wrote:
Anonymous Coward wrote:CT1770 with ASP is the king of SB16.


So basically, a CT1740 (ASP soldered down out of the box) is the king of SB16 (if SCSI is not of interest) :)

RiP wrote:Does anyone have all of the latest CT1770 drivers for Dos, Win3.x, Win9x ? :confused:


See attachments.


Thanks, My IBM PS/1 multimedia edition originally came with the CT-1740 and creative/Matsushita 2x CDROM.
The CT-1740 has a Panasonic interface built in. It's NOT IDE.
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Re: Sound Blaster CT1770 w/SCSI info ?

Postby RiP » 2019-8-18 @ 19:06

Well, I tried many things but couldn't get the SCSI interface of CT1770/CT1779 to work :depressed:
Windows 98 doesn't detect the DMA channel (default:0) of the SCSI too :confused:
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