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Spectrum Serial Numbers Wanted!![b]This post updated Sept. 26, 2013[/b] As far as I know, the serial numbering system for the Spectrum has never been fully worked out. For the p…
... this right.
48K Issue 3
Serial (green): 001-564512 ... -
Issue 3 board with strange piggy-back boardIn case you are interested. I?ve never seen something like this before. I have an Issue 3 board here. When I opened the case and found a strange pig…
Mate, we all know what a Spectrum issue 3 board looks like.
We need the underside (or bottom side if you prefer) of the Logitek board!
And since you're at it, a better close-up of the top side wouldn't hurt... -
I've had better nights...So I got a broken issue 2 today, case in good nick but the diags board showing multiple failures in both lower/upper RAM. Never mind, good as a spare…
... luck today and repair one issue 3 for ten minutes :), I have ... check of voltages get me +3.5v on lower ram, change ... -
Spectrum Missing -5vMy Spectrum is "almost" booting, just when you expect the (C) 1982 Sinclair Research to appear it just displays flashing squares on the screen :( I …
Is your board an issue 3 or an issue 3B? Are there ... resistor R55 for an issue 3 or resistor R79 for ... an issue 3B.
... diode (D16 for issue 3, or D19 for issue 3B) is short ... ] says, a faulty C46 (issue 3 and issue 3B).
... -
Spectrum Missing -5vMy Spectrum is "almost" booting, just when you expect the (C) 1982 Sinclair Research to appear it just displays flashing squares on the screen :( I …
... original rubber key 48k Spectrum issue 3
Any help or ... /dried C46. Just resurrected an issue 2 with exactly the same ... -
Video failureHi i cant find the failure of my spectrum 48k issue 4a, i thought it was ic6 or ic13 but the memory seem to have the right values. When i turn it on…
I just had a case recently where an Issue 3 showed the lower half of the screen only, but twice ?!? Finally replacing the ULA fixed the problem. -
Two more faulty onesCould I get your opinion on these two faults, please? Understanding these two cases would be very beneficial for my ZX education. Thanks! - A Spectr…
... had been applied to the issue 2 5C112E ULA and altered ... ]Chapter 24. ULA Versions, section "Issue 3 ULA 6C001E-6", p.251 ... /> [/RIGHT]
[/QUOTE]So any issue 3 machine and up will exhibit ... this shift compared with issue 1/2 Spectrums.
"Press any key" detectionWhat would be the simplest way to detect if *any* key is being pressed? No LAST_K trickery, I can't rely on that. It has to be reading the keyboard p…
[QUOTE=aowen;735032]The Timexen return 95 on IN 254 when no key is pressed. Not sure what issue 2 machines do.[/QUOTE]
I'm getting 31 on my TS2068s.
The issue 2 returns 255, the issue 3 returns 191.Spectrum 48k membraines & key metal cover :)As per title, what the best place to get these from ? I need 2 of each for the rubber keyed speccy :) Thanks OttO
... couple of my newly-refurbed Issue 2:
[IMG]http ... ]
I've an Issue 3 that I got a couple ...FS Very early serial ZX81Sorry in advance if I have put this in the wrong section, please move if wrong! [URL="http://www.ebay.co.uk/itm/111235944876"]ZX81[/URL]
... number, and I have issue 1 and issue 3 boards, and one of ... my issue one boards has a ...FS Very early serial ZX81Sorry in advance if I have put this in the wrong section, please move if wrong! [URL="http://www.ebay.co.uk/itm/111235944876"]ZX81[/URL]
... an issue 1, then an issue 3 no serial followed by an issue 1 ...Spectrum Serial Numbers Wanted!![b]This post updated Sept. 26, 2013[/b] As far as I know, the serial numbering system for the Spectrum has never been fully worked out. For the p…
... (Green)
ULA 5C112E-3 8316
Issue 3
D01-191360 ... (Green)
ULA 6C001E-6
Issue ... )
ULA 5C112E-3 8319
Issue 3B
D01-366989 ...Born again Speccy user with problemsHello all, Firstly I'd like to say a big hello - this is my first post! When I was 8 or 9 or so my dad bought a ZX Spectrum 48K and a whole bunch o…
... headphones...
[QUOTE=DEATH]Issue 4B board in an '83 ... 'd expect an issue 2 or an early issue 3 board [/QUOTE]
Two spectrums?I'm trying to find out more about these two Spectrum? The serial number on the first is worn. I found these pictures on the web and that's all I ha…
... [/URL] they're both probably issue 3 boards (second may be a ...+2 Grey video issueSo far ive replaced TR4, TR5 (and correctly orientated them) and seperated the audio from the video, still I have this; [youtube]mZZWOXRs_Zk[/youtube…
Cheers B! Exactly what I needed! Its a 70500 Issue 3 board btw, just for reference, time to order some BC547's then if the BC548's wont work (or will they?)Horace MinerNew Horace game for 2014 [url]http://stevebroad.x10.bz/spectrum/download/HoraceMiner.zip[/url]
... to switch the keyboard to issue 3 under options i Spectaculator.
Spectrum+ Issue 3b customization and repairHi everybody, I've got a Spectrum+ that shows exausted electrolytics capacitors issues such as poor colors on the screen and speaker noises. I was go…
... the voltage conversion circuit on Issue 3 machines (you'll see two ...48k+ ULA'sI've got three ULA's here that only work in certain boards. Thought I was going nuts, swapping, changing stuff around. But hey, I've got two working …
... ULA, found on Issue 1 and early Issue 2 boards. ... internally, however a further issue concerning I/O to ... in machines containing this ULA (Issue 2 boards).
[*] ... TV makes. Found on Issue 3 boards, spider mod was ... of RAM. Found on Issue 4A and above boards.< ...48k + Issue 3B Power SocketHi All, Trying to get a Issue 3b resurrected that had a faulty power socket. The socket has come away from the board and peeled away some of the tra…
Thought so, but wanted confirmation. One the Issue 3, it tracks back to the underside of the board but the issue 3b is different.
Ta for confirming. :)DivMMC with other components..Having transferred my loyalties from the IF1bis to the DivMMC, I have finally been able to spend some time trying to set mine up on my ZX Spectrum. I…
... on one of my other Issue 3 Spectrums, I now have the ... ]
I have a similar issue too. The problem seems to ...48k+ ULA'sI've got three ULA's here that only work in certain boards. Thought I was going nuts, swapping, changing stuff around. But hey, I've got two working …
... ULA, found on Issue 1 and early Issue 2 boards. ... internally, however a further issue concerning I/O to ... in machines containing this ULA (Issue 2 boards).
[*] ... TV makes. Found on Issue 3 boards, spider mod was ... of RAM. Found on Issue 4A and above boards.< ...48k+ ULA'sI've got three ULA's here that only work in certain boards. Thought I was going nuts, swapping, changing stuff around. But hey, I've got two working …
... reckon it's good for issue 1-3 machines. Not a clue ... />
I'd say till Issue 2 then, as your picture ... confirmed to be compatible with Issue 3.48k+ ULA'sI've got three ULA's here that only work in certain boards. Thought I was going nuts, swapping, changing stuff around. But hey, I've got two working …
... ;759916]I'd say till Issue 2 then, as your picture ... confirmed to be compatible with Issue 3.[/QUOTE]
The ULA ...My TV is dying....oh no's!So I'm thoroughly enjoying my return to Spectrum life at the moment. But something is becoming clear to me. Or to be more exact, clearly fuzzy to me.…
I have found that my issue 2 motherboards are having problems ... explained by Mark) TV, where issue 3 and on will synch better ... composite mod. All of the issue 2 board were re-capped ...48k+ ULA'sI've got three ULA's here that only work in certain boards. Thought I was going nuts, swapping, changing stuff around. But hey, I've got two working …
... ?
It looks like Issue Two circuit boards were made ... 6C001E-6 boards before the Issue 3 circuit boards were made.NOW look at what SpecBAS can do![img]https://sites.google.com/site/pauldunn/specbas_32.png[/img] Here's the code: [code] 10 WINDOW NEW w,0,0,SCRw,SCRh BPP 32 20 FOR f=1 TO 512 30 …
... /> I got the purple screen issue 3 years ago but my unit ...48k no beeper sound (again!)Got three 48k+ here, all of which have the same exact problem, no sound out the beeper, same problem as detailed [URL="http://www.worldofspectrum.org…
Board issue numbers? All issue 3 or above I take it?< ...48k no beeper sound (again!)Got three 48k+ here, all of which have the same exact problem, no sound out the beeper, same problem as detailed [URL="http://www.worldofspectrum.org…
... current range.
On the issue 3 Spectrum that I have to ...Interesting/Unusual ZX81Hello I am shopping for a ZX81 and while I was browsing Ebay today, I came across one that is described as "having a 64K chip." When I saw the ad t…
... />
I've got an issue 3 '81 that has an almost ...
