Hi
I have an old 50pin SCSI CD Rom. It's recognised perfectly by the drivers. However when it initiates it just keeps the led on and can't be read.
Any tips on what I could start to test or work on?
Thanks
Louis
-try another pressed disk
-clean lens, lubricate rail, look for electrolytic capacitors inside the cdrom
-replace cdrom
https://github.com/raszpl/FIC-486-GAC-2-Cache-Module for AT&T Globalyst
https://github.com/raszpl/386RC-16 memory board
https://github.com/raszpl/440BX Reference Design adapted to Kicad
https://github.com/raszpl/Zenith_ZBIOS MFM-300 Monitor
Toshiba XM-4101T and B uses passive resistors for termination iirc, if the drive is the only device or is on end of the scsi chain those resistors must be in place or use a terminator block on the cable end.
Which scsi adapter are you using ?
Hate posting a reply and then have to edit it because it made no sense 😁 First computer was an IBM 3270 workstation with CGA monitor. Stuff: https://archive.org/details/@horun
forgot communication test, some program to try ejecting CD would be nice, sadly I cant find any (eject.exe?)
https://github.com/raszpl/FIC-486-GAC-2-Cache-Module for AT&T Globalyst
https://github.com/raszpl/386RC-16 memory board
https://github.com/raszpl/440BX Reference Design adapted to Kicad
https://github.com/raszpl/Zenith_ZBIOS MFM-300 Monitor
There is a DOS CD eject.exe included in some of the LG cdrom drivers, will dig it out and attach...
ok here... I tested from a command prompt from windows and it opened my sata dvd burner 🤣
good luck !
added: Eject.zip contains v2.1, attached a previous version 1.0 from 1990 (it requires mscdex to be installed)...
Hate posting a reply and then have to edit it because it made no sense 😁 First computer was an IBM 3270 workstation with CGA monitor. Stuff: https://archive.org/details/@horun
