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ZX Spectrum 48K Issue 3, loss of -5V rail.Hi all, I've googled this problem and poured over the electrical diagrams for the circuitry concerning the power supplies and I believe I know what …
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In unmodified issue 4 and earlier issue boards, the internal voltage ... -
+2A: issue 1 no sound but better picture than issue 4?Hello everyone. I have a slight problem here and I am trying to figure out what could be wrong. :-( I have two spectrum +2A with two board revision…
The differences between the ISSUE 1 and ISSUE 4 versions of the +2B motherboard ... . As you already noticed the ISSUE 4 board is built up with ... -
ZX Spectrum 48K Issue 3, loss of -5V rail.Hi all, I've googled this problem and poured over the electrical diagrams for the circuitry concerning the power supplies and I believe I know what …
... coil is normal, especially on issue 1 and 2 machines (I ... than the later ones in issue 4 and up machines.
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…
... issues running it on an Issue 4 board, I think they're ... meant for the Issue 2 as mine doesn't ... play nicely with even an Issue 3... I'd recommend using ...Spectrum Issue 2 - TR6 ReplacementI've just got my hands on an Issue 2 ZX Spectrum, that needed some repairs. The picture quality after doing a composite modification was pretty shodd…
... case for one that an Issue 4 was in because it was ... that the case for the issue 2 must have been molded ...Modern PSUHello everyone, I'm looking for a modern PSU for my Spectrums and my dual set of 3.5'' floppy drive+HxC floppy emulator. The one for Spectrum should …
... improved in later issue boards (some issue 4 variants and issue 5 and later ... 14V. Also the heatsink on issue 3 and later boards is ...Smokin... more 48k woesHi, it looks like I've converted another Spectrum 48K+ into a smoke machine. I'd been rebuilding an Opus Discovery unit and everything looked good. …
... main 12V line via R62 (Issue 4), 15R. Check if it's ...What is the Sinclair ZX Spectrum Vega and what does it mean?Just stumbled upon this Indiegogo page following a tweet from SpeccyNews [url]https://www.indiegogo.com/projects/sinclair-zx-spectrum-vega[/url] it…
... family after the Amstrad built Issue 4 +2B
[QUOTE=JPickford ...Non-Ferranti ULA 6C001E-7?Hello! I don't like Iss2 boards that much but after revising one Speccy like that for a friend, the results were so positive that I decided to have …
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I see very few Issue 4 rubber-keys, next time I ... 't remember seeing -7 until issue 6.
All of ...Non-Ferranti ULA 6C001E-7?Hello! I don't like Iss2 boards that much but after revising one Speccy like that for a friend, the results were so positive that I decided to have …
There we are then - Issue 4 was the transition period. :)Non-Ferranti ULA 6C001E-7?Hello! I don't like Iss2 boards that much but after revising one Speccy like that for a friend, the results were so positive that I decided to have …
... STC RAM pulled from an Issue 4 (although I think this is ...Ways to identify spectrum issues with out opening them?A good while ago, I'm sure I saw some posts on here about how to identify what issue speccy you have by looking in the expansion port to see what hea…
... 6 small chips? Issue 3 to 4 then. There is ... a subtle difference that identifies these. Issue ... in jack. On issue 4 this is absent ... In summary:
Issue 1: Heatsink down side, trimmer ... small chips.
Issue 4: Heatsink along back, ...Crash Smash list?To save me having to go through all 99 mags, does there exist a list of all the "Crash Smash's", if so could you point me to it pretty please? (I h…
... in this particular case (Crash issue 4 May/1984):
[LIST ... Pogo, reviewed in the same issue?DivMMC Enjoy - I'm not enjoying it!My DivMMC Enjoy arrived today. Excitedly I rushed home to plug it into my +2a. I have quite a few SD card/CF solutions for my computers so I know wha…
... been investigating incompatibility between an issue 1 or 2 +2A and ... IC15 method used on my Issue 4 +2B, my RAM chips now ...DivMMC Enjoy - I'm not enjoying it!My DivMMC Enjoy arrived today. Excitedly I rushed home to plug it into my +2a. I have quite a few SD card/CF solutions for my computers so I know wha…
... been investigating incompatibility between an issue 1 or 2 +2A and ... IC15 method used on my Issue 4 +2B, my RAM chips now ... tryout the modification on an issue 1/2 board, just for ...48k issuesThe 48k speccy had several alterations ( issues) and I was wondering, they all seam to work ok so what was the point?<br>
... of some of the new issue boards.
Including all the ... drove the change from issue 1 to issue 2. Allowing a wider ... change from issue 2 to issue 3. The changes for issue 4, 5 and ...Display bandsHi all, I'm busy working on an issue 3 16k Spectrum I picked up on eBay. I've upped it to 48k and put a new membrane in. I noticed the display was…
... with my multimeter with an issue 4 and nothing really stands out ...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 …
... . It is fairly common on issue 4 boards.
[b][i ...1-Bit Sound AccuracyI'm hoping someone can give this snapshot a try on a real machine (just press enter to start the music): https://drive.google.com/file/d/0B6XhJJ33xp…
... annoyingly quiet.[/quote]
Issue 1 and 2 spectrums had ... my friend had an issue 4, I had an issue 2 (still have ...New set of rubber keys?Hi everyone, I've recently acquired a rubberkey speccy in a sorry state and I'd like to return it to it's former glory. A lot of the lettering an…
... reply rwap. It is an Issue 1 speccy, (at least the ... more or less as my issue 4, so I think it's ...1985-2015.A topic where we can review games released on the Speccy 30 years ago, or, anyway, talk about that year.
... in-game tune on the 128 version.
4/5Good or Horrible: Denton DesignsGift from the Gods (1984) - meh Bounces (1985) - meh Cosmic Wartoad (1985) - gash Frankie Goes to Hollywood (1985) - awesome, ow ow ow!…
... [/img]
Your Sinclair, issue 4, page 95.
Iolo ...Harlequin 128k??Hi peeps... I've seen that you can do a 128k version of the Harlequin board. Is it just the standard board with different chips or is it a dif…
... -archive.com/2016/06/11/harlequin-128k-issue-1/Harlequin 128k??Hi peeps... I've seen that you can do a 128k version of the Harlequin board. Is it just the standard board with different chips or is it a dif…
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Superfo Harlequin 128 is extend from Superfo Harlequin Rev G[/quote ... developed the first Superflo Harlequin and Superflo Harlequin 128? You're the only ...Harlequin 128k??Hi peeps... I've seen that you can do a 128k version of the Harlequin board. Is it just the standard board with different chips or is it a dif…
[quote="Shugs81;864230"]Maybe I got the wrong parts list...[/quote]
Use this one (page 8), sorry for confuse.
http://www.pdf-archive.com/2016/06/11/harlequin-128k-issue-1/Harlequin 128k??Hi peeps... I've seen that you can do a 128k version of the Harlequin board. Is it just the standard board with different chips or is it a dif…
... paper containing my mods for Harlequin 128k issue 1.
[url="http ...What kind of modification done to a +2A is this?A friend of mine bought a second hand spectrum +2A and now that he has opened the case found this inside: [URL=http://s1063.photobucket.com/user/J…
... factory mod present on some ISSUE 1 boards to work around ... into the motherboard for ISSUE 2 and ISSUE 4.
It reroutes the ...Mundo Spectrum magazine - date queryAnother magazine, another date query :) https://proyectobasiczx.wordpress.com/revistas/mundo-spectrum/ I know they were published in 1987, but …
Well, the issue with the picture of the Earth as taken from the moon says "Year 2 Issue 4 February" and from the 720 picture I'd say it was 1988. I was living in Spain at the time and I don't remember the magazine unfortunately, only Microhobby.Mundo Spectrum magazine - date queryAnother magazine, another date query :) https://proyectobasiczx.wordpress.com/revistas/mundo-spectrum/ I know they were published in 1987, but …
[quote="plecostomus;871532"]Well, the issue with the picture of the ... the moon says "Year 2 Issue 4 February" and from the 720 ...
