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Sound distortion on +2/+3Hi all, this is my first ever posting, so please be gentle! I have two +2s and a +3(all second-hand but in vgc) and the AY output on all three is ver…
... ; +3).
Depending on your pcb issue you could start by looking ... -
rare, mint - Issue 1 SpectrumI don't usually advertise my eBay stuff on here, but for something like this I'll make an exception. if spectrums were cars, this would be a 250GTO,…
... thing apart and check the PCB issue number. -
How can I tell what issue a speccy is from the serial number?Is it possible to know the issue of a speccy just by looking its serial number? What issue a 001-107603 could be? Is it issue 1 (i know its a 16K ma…
... cunning ways to determine the issue of a ZX Spectrum from ... involve looking at the PCB).
Issue 1s are only 48k ... with the trimmers.
Issue 5 onwards uses the ZX8401 ... ZX8401, sometimes a PCF1360P) indicates issue 5 onwards, and is towards ... -
Where is the other side from the ZX 48 PCB?Has anyone the other side from the PCB? [url]ftp://ftp.worldofspectrum.org/pub/sinclair/technical-docs/ZXSpectrumIssue3-PCB_Bottom.gif[/url] Micky
... just the topside of the PCB, or will this do? :
PCB for making a new one because mine from issue 3b ... anyone Gerber files from a PCB issue 3 or 4 or does ... anyone know who sells new PCB's?
Micky -
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…
I'll do all mine as soon as I can. Must have about 15 or so now. Is it just the number and colour or do I need to open them and get the PCB issue, ULA type etc?. -
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…
... open them and get the PCB issue, ULA type etc?.[/QUOTE]
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…
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…
... would be more useful if PCB issue and ULA type were listed ...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…
... would be more useful if PCB issue and ULA type were listed ... full ULA chip code and PCB issue.
A lot of the ... important when considered with the PCB issue number.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…
... full ULA chip code and PCB issue.
A lot of the ... important when considered with the PCB issue number.[/QUOTE]
I ...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…
... Serial: 109-224790 Color: Blue PCB: Issue 3B
PCB: Issue Two
Serial: D01 ... -313373 Color: Green PCB: Issue 3B
... 001-199781 Color: Green PCB: Issue Two (Socket Mounted Upgrade ...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…
... +
Serial: 108-055042: Green PCB: Issue 6U: 1985: UK: ULA7K010E5
Issue 4a with green PCB but the number im ...Hi everybody! Need help trying to rescue a ZX 48K...Hi, since this is my first post, a bit of info about me: I'm an Italian guy, now living in Poland (Warsaw), informatics and electronic geek since…
... it's soldered to the pcb (issue 3) so I will need ... I can find another issue-3 PCB to make some comparison and ...Tape loading for realHi, Having failed to load anything from my laptop or phone into my 48k, I have sourced a data recorder. An acorn ALF03. When I received the item I …
... the "loud speaker" (depends on PCB issue number).
Sinclair did ...The Spectrum Resuscitation ThreadKicking off this thread as a place where people who are fixing/restoring Spectrums (or indeed any other piece of related hardware) can show off their…
... an earlier thread, my SRBP PCB Issue 4A decided to die on ...A new full-screen bicolor engine called NIRVANA[I]OK, there's something I need to clarify first: Nowadays if you write [B]"multicolor"[/B] everyone assumes it refers to "multicolor 8x1" (an attri…
Ah, thanks for the reply :)
It turned out to work quite different on the real thing than in the fuse-emulator.
Might be an PCB issue thing? Im investigating this and well report back ;-)
Best wishes,
MartinZX Spectrum 48K AV IssueOK so I dugout my old 48K Speccy today and decided to AV mod it. I did the mod (pretty easy) but the picture I am getting is this. [url=http://posti…
... anything, please tell us the PCB issue number (normally screen printed in ...ZX Spectrum 48K AV IssueOK so I dugout my old 48K Speccy today and decided to AV mod it. I did the mod (pretty easy) but the picture I am getting is this. [url=http://posti…
PCB issue number - Issue 4B
+5V supply - Pin 9 - Pin 16 - 8.67 (I was wrong currently) :(ZX Spectrum 48K AV IssueOK so I dugout my old 48K Speccy today and decided to AV mod it. I did the mod (pretty easy) but the picture I am getting is this. [url=http://posti…
[QUOTE=Beaps;781499]PCB issue number - Issue 4B
+5V supply - Pin ...PCB thicknessHas anyone here got a micrometer and access to a 48k and a 128k grey? Im convinced the greys have a thinner pcb which would explain certain devices a…
The thickness of the pcb (Issue 3) is 1.70mm (without copper foil) and 1.79mm at the edge connector (tinned copper foil).Opus Discovery "the big switch on" (after 20 years)I have a few of these Opus Discovery's with different Eproms in that have not been swiched for 15-20 years or so . I am in no rush to switch any on …
... the same version of real pcb)
But some questions:
I have a spare PCB issue D without transformer (obviously no ...Opus Discovery "the big switch on" (after 20 years)I have a few of these Opus Discovery's with different Eproms in that have not been swiched for 15-20 years or so . I am in no rush to switch any on …
Issue D Board showing a clear ... " of the component side of PCB/Issue%20D%20board%20opus%20Discovery%20fix ... .photobucket.com/albums/zz200/harriusherbartio/Issue%20D%20board%20opus%20Discovery%20fix ...Opus Discovery "the big switch on" (after 20 years)I have a few of these Opus Discovery's with different Eproms in that have not been swiched for 15-20 years or so . I am in no rush to switch any on …
... in this case is Opus PCB stand offs . In its ... . For the Opus "burned" PCB Issue D that I call "Freebird ... in the case of Opus PCB Issue D that I call ... The trivial problem with this PCB is how to replace these ... plate and not the PCB . (The PCB is more unique than ...Datasheets of the Spectrum 128K +2 ICs.Is there any place where I can find the datasheets of the ICs of the Spectrum 128K +2? I have tried to look for each of them separately but for some…
... for the relevant model and PCB issue number.
For information ...Spectrum +2 (grey): Mod- and operation- related advices needed.Dear Sirs and Ladies, Please welcome a newbie to the “World of Spectrum” (both to the forum and, well, metaphorically). I’ve recently purchased a…
... at least two slightly different PCB issue boards for grey +2 machines ...help with my original issue 3b from when i was a teen. possible lower ram fault.hello, well ive tried to fix my old speccy, but haven't made much progress. could you help me out with some diagnosis. the fault occurred about…
I see, I got it wrong, you have the PCB issue 3b. So the test ROM would help as Mark mentioned above.Any one know what this mod isOk +2b with a mod anyone know what it is and why its there and if its worth removing cheers [img]http://i.imgur.com/p5IG6Ec.jpg[/img]
What is the PCB version? Is it Z70833 Issue 1 or 2. The ... factory mod typical to the PCB issue 2 with the clock signal ...Opus Discovery "the big switch on" (after 20 years)I have a few of these Opus Discovery's with different Eproms in that have not been swiched for 15-20 years or so . I am in no rush to switch any on …
... Rectifier set up on the PCB Issue E
[url="https ...
