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Hello Sorry for this late reply, I was abroad this week-end. Thank you Dave, Martin and Mark for your recommendations and advices. My MTX is disassembled to remove the components of the supplies and in same time I'm able to make the suggested upgrades if they have a positive result. 74HC04 is very c...

Hello At that time I'm working on an upgrade of the DC supplies of my MTX. It will be supplied by the new one in the FDX. (See post on Facebook) During the investigation I saw that the revision of my board is 4000-05 and in the "Service Manual" pages 49 and 50 a " Timing Chain Modific...

Hello

Bill B: Thank you for your infos.

Best regards

Hello Steve Hope you will enjoy as I did in the 80's. This computer is very interesting because you can access each part to learn, to test, to create, ... Dave Yes I suppose it must me the case, I try every tapes, also the original "TOADO", with 3 different old "defected" players...

Thank you Dave for your reply I discovered, last week, that web site during my research about MTX512. My printers are still warm. My last contact with MTX was to put all item's in some boxes 30 years ago. Now I unpack, devices, listing, discs, tapes, ..., and I make trials before a complete reinstal...

Hello everybody My name is Schmit Stéphane and I live in G-D-Luxembourg. I have been retired since last year after 39 years in industrial electronic. I'm the owner since March 1984 of a MTX512 with 128k memory extension board and RS232 too. The printer DMX80 is also in the package. In February 1986 ...