My TC01

[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

[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.

[vanpeebles]

Welcome! I can’t see the pick of the sig

[Gary C]

Not sure if this will work

[Gary C]

Or if that doesn't work

https://www.amazon.co.uk/photos/share/8 ... EGigY1vala

[vanpeebles]

that is strange!!

[Gary C]

I did buy this machine from a place very near Bradford

[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.

[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.