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Old 1st Nov 2019, 9:52 pm   #3
ribbonmicsrus's Avatar
Join Date: Jun 2013
Location: Worthing, West Sussex, UK.
Posts: 126
Default Re: Toshiba 4000CDT again!

No, no built in mem test. tried loading on a 4Gb drive, same results.
It is looking as if hardware problem, have ordered a new 128Mb Ram module.
If that doesn't work, guess out with freezer spray whilst it is working correctly and see if can identify problem area. Could be a dodgy electrolytic or a transistor.
I need to get it reliable as it is needed with MS-DOS and RS-232 port for a Vertex repeater and control logic. Running on modern machine with USB to RS-232 does not work!

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