Hello!

[deanclaxton]

Welcome to the forum Dean

As John said, a black screen with a flashing solid cursor top left corner means its waiting for a disk to boot.

Just tried to look at your Apple site but get  "Website certificate revoked" error and wont let to go there.

Hi,
in regard to theromexchange.com that certificate issue should have been resolved now - my son was doing some work on the script that updates the certificate automatically, and I think it should be ok now.

I'll give that a go and see if I get a cursor (thanks John  ) I dont think I was getting any output whatsoever but will give that another go.


Cheers,
Dean

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Hi Dean & welcome to the Forum,
Try holding down the M key when you power up the 64K and regardless of a drive unit fitted or not, if the M key is working and all else being good it should take you straight to the Monitor.
That will at least tell you that it is initialising OK and that the Video driver is working OK.
From there you can test your keys and find which ones are working and which ones may need attention (don't be surprised if many don't work).

You should be able to use the same power pack / cable arrangement for powering your 256TC it will only be in Monochrome being from the 5 pin DIN output, but a good place to start. The TC will boot into a Menu regardless of any boot disks present. From the menu you can run a diagnostic test on the system or into the Monitor as described for the 64K above.
But I would also ensure that the RTC battery is no longer present if one was ever fitted.

Ernest

Thanks Ernest, I'll try M if I get a cursor. I got lucky with the 256TC - the RTC battery has been removed and it looks clean from my initial inspection.

The power pack I have is 12V - I think the 256TC is 10V but I havent looked at the input side to see what it can handle.

Cheers,
Dean