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Help reviving a 128 +2 GreyHello m8s, my turn to ask for some help with a +2 Grey. Got it for spares as I do have a working one but I could not resist to try and fix it. As us…
... tester loader with Paul farrow test program and gave me fault ... same error on Paul's test and stil 0v on pin ... -
Timing of Timex Computer 2068Is the timing of the Timex Computer 2068 fully documented yet? I have one here with the ZX Spectrum Emulator cartridge and have downloaded a few test…
... . I'm wondering how to test the contended I/O timing ... -
another faulty zx spectrum +2 to fix!!!Hello to all, I'm new here... I have got a faulty +2 (gray) and start to try fix it... I have read the treads of xaris_sm and Pluto63 as background…
Compatible Memory Chips for Issue 2 48K MotherboardHi I was wondering if anybody have a list of manufacturer chips which is compatible with the Issue 2 48K Motherboard, especially the upper 32K RAM.…
... of the 8 RAM chips test faulty. I replaced this with ...Issue 4S AnnoyanceRecently ive been going through a few interfaces testing them and I stupidly inserted a "key-less" interface (didnt know at the time but should have …
... , everythings soldered in, quick voltage test of lower ram checks out ...ZX81 + 16K RAM PackUp for sale is a ZX81 packaged with power adapter, aerial cable, ear/mic cable and 16K RAM Pack. I hooked it up to the tv and although the power sup…
Cant find it ....Trivia Test 4 LOAD "TT" By: Isthmus Software Ent. Would this be zx81 or spectrum??
Trivia Test 4
LOAD "TT"
By: Isthmus Software Ent.
Would this be zx81 or spectrum??ZX Spectrum + and 3 * Spectrum +2 Grey For SaleHi, I have listed 3 Spectrum +2 Grey Models and One Spectrum + One of the +2s works fine, one powers up but has flashing squares, and the other I a…
... other I an unable to test because the power connector is ...Speccy collection prepping for sale - Pics includedHi guys, I made a post a while back about having to shift my sizeable collection due to incoming sprog. I gave up typing up the names, so I'm going…
A few questions on the Z80A cpuI know this has been discussed before and I read (a while back) the post which goes over the different Z80A CPUs ...(CMOS, NMOS? can't recall exactl…
... . Also ran the [b]Z80 Test Suite[/b] program.
It ...
On the MEMPTR test everything passed.
Any ... failed entries on the Flags test...
t
