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My TC01

Posted: Mon May 04, 2020 2:10 pm
by Gary C
Hi

New member and new owner.

Picked up a TC01 mid last year and just got round to turning it on to get a half white half corrupt screen, but disk activity when I typed so looking good and limited to the VDP or the VRAM.

Found some VRAM and a couple of 9129 VDP's for a really good price (not here yet though), and socketed the board while waiting. New VRAM fitted and now all working. When I get the VDP's I will give them a test to check they are fully working and keep one as a spare, then the second will be available if anyone else needs one.

One odd thing, on the underside of the lid, there is a strange signature. Not sure if its original, or a later addition ?

It looks like a IGH then a duck :)

http://www.vcfed.org/forum/attachment.p ... 1588597204

Re: My TC01

Posted: Mon May 04, 2020 3:23 pm
by Gary C
Just burnt and run the diagnostic ROM and all is fine (nice bit of work that rom). Only had a 27128 rom to hand so burnt it twice into the bottom then top half and it worked fine.

Re: My TC01

Posted: Mon May 04, 2020 4:49 pm
by vanpeebles
Welcome! I can’t see the pick of the sig :(

Re: My TC01

Posted: Mon May 04, 2020 5:19 pm
by Gary C
Image

Not sure if this will work :)

Re: My TC01

Posted: Mon May 04, 2020 5:34 pm
by Gary C

Re: My TC01

Posted: Mon May 04, 2020 11:20 pm
by vanpeebles
that is strange!!

Re: My TC01

Posted: Tue May 05, 2020 5:26 pm
by Gary C
I did buy this machine from a place very near Bradford :)

Re: My TC01

Posted: Thu Jun 11, 2020 3:15 pm
by MikeDHalliday
UPDATE: It looks like the Amazon photo links have expired now! :(

Try this instead: https://groups.io/g/tatung-einstein/album?id=258969 (You may have to join the forum if not already a member!)



I have some strange markings on the inside of my Einstein too, except they are under the keyboard housing.

https://www.amazon.co.uk/photos/share/1 ... 8y1vQQHpHn

There is definately another one under the mother board, but I dont think I took a photo of it!

Mike.

Re: My TC01

Posted: Sat Oct 10, 2020 9:35 pm
by Gary C
Sorry, missed that picture (not available)

But would be interested to see it. Does it look anything like my duck ?

Would be typical British humour.