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<1…16171819202122…34>
  • Whites are yellow - 48k Issue 2I have a 48k issue 2 that appears to be working fine. I've replaced all but 2 of the electrolytic caps (mostly because the 2 were not in stock at my…

    ... was. I did change VR1/2 and I think it helped ... turned out fantastic - very clear picture. I'm now the proud ... of a perfect working 48K issue 2. Makes the $$ I spent on ... /> The heat sink in the issue 2 gets pretty darn hot!
    wedwo wedwo August 2015 Hardware
  • Weird crashing problemOK, got an odd (to me anyway!) problem. 16k Spectrum, appears to work fine, it starts up, go to load a game (Trans Am, Cookie, Jetpac etc), the game …

    ... the 5C in the issue 2. Bombed on start of ... no bother.
    Tried the 6C from the 4a in the issue 2 ... board. Same deal, no problems.
    ... Put the 5C back in the issue 2, ... 't happy in the issue 2 board but runs fine ...
    Jet5y Jet5y October 2015 Hardware
  • Weird crashing problemOK, got an odd (to me anyway!) problem. 16k Spectrum, appears to work fine, it starts up, go to load a game (Trans Am, Cookie, Jetpac etc), the game …

    ... be a problem.
    2) Purchase another Issue 2 machine and swap the ... ULA's between those Issue 2 boards ... . This may result (no guarantees) in two ...
    balford balford October 2015 Hardware
  • 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 …

    ... project on the Opus Discovery no 1 I has come to ... .With computers generally there is no shortage of things to do ... " with my almost totally stripped Issue 2 ZX Spectrum board . Joules says ... anyone's time.

    2 I could concentrate on "What ...
    harriusherbartio harriusherbartio October 2015 Hardware
  • Spectrum 48K: Z80 strange bypassedHi. When I try to turn on my Spectrum, I get only this image: [img]http://i7.aijaa.com/t/00160/14005443.t.jpg [/img] I opened Spectrum and c…

    ... can't say as the picture you posted does not show ... fault your picture shows. Is this an issue 1 or an issue 2 board ...
    1024MAK 1024MAK October 2015 Hardware
  • Spectrum 128k +2 (grey) getting started..So, I just received a grey +2 in the mail. I don't know if it's in working condition, but that doesn't really matter. I opened it up and a small r…

    ... can proceed like on the picture you posted (if your tape ... 's what I've done 2 years ago, and it's ... -add-audio-input-on-a-2-no-more-low-level-sound-problem ...
    bugpat bugpat December 2015 Hardware
  • Composite picture qualityI have read many many discussions here about the composite video modification of the Spectrum 16/48K models. I have choosen one of the simplest comp…

    ... switch off sharpness and any picture improvement options.[/quote][quote=" ... banding (like shown in 2nd picture in this thread) is ... are replaced. For the best picture quality, use low ESR ... as well.

    [code]Issue 2 schematic
    C5 1uF ceramic ...
    1024MAK 1024MAK December 2015 Hardware
  • Sudden death of ZX Spectrum 48KHello A friend gave me a 48K rubber keyed Spectrum. I brought it home, hooked it up to my little TV and powered it up. I was very happy to see t…

    ... links but honestly I have no idea what it is. Here ... RAM upgrade kit, intended for issue 2 Spectrums. It'll work fine ...
    Zorn Zorn December 2015 Hardware
  • Sudden death of ZX Spectrum 48KHello A friend gave me a 48K rubber keyed Spectrum. I brought it home, hooked it up to my little TV and powered it up. I was very happy to see t…

    No. I was confused. It wouldn' ... have been intended for the issue 2, because that has a simpler ...
    Zorn Zorn December 2015 Hardware
  • Sudden death of ZX Spectrum 48KHello A friend gave me a 48K rubber keyed Spectrum. I brought it home, hooked it up to my little TV and powered it up. I was very happy to see t…

    [quote="Zorn;843707"]No. I was confused. It wouldn' ... have been intended for the issue 2, because that has a simpler ...
    memrah memrah December 2015 Hardware
  • Sudden death of ZX Spectrum 48KHello A friend gave me a 48K rubber keyed Spectrum. I brought it home, hooked it up to my little TV and powered it up. I was very happy to see t…

    ... , and to be honest, an issue 3 16K machine is quite ... to be found on an Issue 2 board.

    As Zorn ... +12V line is working, but no mention of the +5V
    DEATH DEATH December 2015 Hardware
  • Not bored with the Boards.Going through some old tapes stored rather badly I came across an unlikely item that that I must have stored away quickly with other low grade items …

    ... up" an Issue 2 Spectrum than repairing my existing Issue 2 boards . Apart ... for a "not very original" Issue 2 48k Spectrum:-

    no longer commonly used in ... a "not completely authentic" Issue 2 Spectrum and with less ...
    harriusherbartio harriusherbartio January 2016 Hardware
  • So for my first trick...I'm sure people have already used the AD724 or AD725 on other 8 bit machines, and i know the Harlequin uses the 724, but not seen anyone trying to us…

    In the +2, the TEA2000 chips only purpose ... . Without the sync, you get no picture on modern displays, and a ... rolling picture on older CRTs.

    1024MAK 1024MAK May 2016 Hardware
  • What are the chances?Hi all, I've picked up an issue 3B, fairly clean board, no mods, wasn't starting correctly so I tried Brendan's diagnostic ROM and got this: [i…

    ... on an issue 2 and 4A board that I've got. No difference ...
    Jet5y Jet5y June 2016 Hardware
  • 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.
    Chris Fairhurst Chris Fairhurst August 2016 Sinclair Miscellaneous
  • 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 Earth as ... taken from the moon says "Year 2 Issue ... 4 February" and from the 720 picture I'd ...
    Ivanzx Ivanzx August 2016 Sinclair Miscellaneous
  • 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…

    ... , now on its 3rd pass no errors.

    just a ... it is now in my issue 2, as memtest found an error ...
    cypher007 cypher007 January 2017 Hardware
  • ZX Spectrum 48k output yellow and jumpyI have a ZX Spectrum that I modded for composite output a few years a go. Lately they output started to be a bit jumpy during the first half hour. Th…

    [quote="balford;892147"]Issue 2 machines typically need VR1/VR2 ... is -45...-100mV. Moreover, the picture is very bad with +75mV ...
    HZJ HZJ January 2017 Hardware
  • Was it all Yellow?I've got this vague memory of my mates first, early 16k model ZX Spectrum. Am I correct in thinking the the white (Paper 7 / Bright 0) had a slight y…

    ... later models?[/quote]
    Issue 1 and issue 2 boards needed the colour ... .

    The circuitry on issue 3 (and later) boards was ... improved and the presets were no longer needed, so are not ...
    1024MAK 1024MAK January 2017 Hardware
  • Scart Leads for spectrumHi, I was going through my stuff the other day and found I have all the bits for making spectrum scart leads. I was going to ebay them but thought …

    ... I get a mainly black picture, but I can just about ... plug in AV2, and get no picture at all, just sound, so ... It isn't - I get no picture at all, just sound again ... myself (the short answer is NO, at least not one ... for both the +3 and +2. His reason for absence is ...
    The Mighty Dopethrone The Mighty Dopethrone February 2017 Sinclair Miscellaneous
  • Memory questionsQuestion 1: PRINT PEEK 23732+256*PEEK 23733 returns 65535 for a 48K Spectrum and 32767 for a 16K Spectrum. PRINT PEEK 16388+256*PEEK 16389 return…

    ... no key is pressed, have I got Spin set to an Issue 2 ... />
    Switch it to Issue 3 and it's working ... this program work with an Issue 2 keyboard (it's actually ... need a manual for an Issue 2 Spectrum to find out ... one is for the +3. No Issue 2 keyboards there!
    The Mighty Dopethrone The Mighty Dopethrone March 2017 Sinclair Miscellaneous
  • Memory questionsQuestion 1: PRINT PEEK 23732+256*PEEK 23733 returns 65535 for a 48K Spectrum and 32767 for a 16K Spectrum. PRINT PEEK 16388+256*PEEK 16389 return…

    ... ;901285"]Switch it to Issue 3 and it's ... this program work with an Issue 2 keyboard (it's actually ... a manual for an Issue 2 Spectrum to find out ... one is for the +3. No Issue 2 keyboards there![/quote]
    ... don't change with Issue numbers, only the contents ...
    GReW GReW March 2017 Sinclair Miscellaneous
  • Free giveaway and great little spectrum blog and FB page.Found this great little facebook page with their own blog, its pretty good too. Edit - Apologies, that site is banned on WoS, as is anything to do…

    ... to encourage active membership and no-one will get preference, as ... member has a very nice Issue 2 48K Spectrum winging its way ...
    balford balford March 2017 Chit chat
  • Not bored with the Boards.Going through some old tapes stored rather badly I came across an unlikely item that that I must have stored away quickly with other low grade items …

    ... . I well I have an Issue 2 bought about a year ago ... :- 1) Do normal sized pics 2) Then close up pics 3 ... known and there should be no chance of error (if trackings ...
    harriusherbartio harriusherbartio April 2017 Hardware
  • ZX Spectrum Test PCB I recently read about one of these (I think it may have been the Retroleum site but I am not sure) and I thought "What a great idea" . As pictured …

    ... to by Retrotechie above?.[/quote]No. they are the cheaper IC ... recently linked to of your issue 2 board show that the sockets ...
    1024MAK 1024MAK May 2017 Hardware
  • ZX Spectrum Test PCB I recently read about one of these (I think it may have been the Retroleum site but I am not sure) and I thought "What a great idea" . As pictured …

    [quote="Claudius;906840"]There is no ROM's content difference between ... ]
    Note that on some issue 2 boards, the spider mod was ... not change on any issue 1 to issue 6A board. But Sinclair ...
    1024MAK 1024MAK May 2017 Hardware
  • ZX Spectrum Test PCB I recently read about one of these (I think it may have been the Retroleum site but I am not sure) and I thought "What a great idea" . As pictured …

    ... of the difficulties with the Issue 2 are all the wiring up ... or control pins, there is no problem with some chips being ...
    1024MAK 1024MAK May 2017 Hardware
  • Fuse for macOS 1.3.5 ReleasedA new version of Fuse for macOS has been released at the dedicated sourceforge project: https://sourceforge.net/projects/fuse-for-macosx/ Note …

    ... . Am checking what's the issue.)[/b]

    I'm ... :

    Boolean options (use `--no-' to turn off):

    --issue2 Emulate an Issue 2 Spectrum.
    --kempston Emulate the ...
    Paul van der Laan Paul van der Laan May 2017 Emulators
  • Issue one motherboardI am not sure if this the best panel to post this, but I am considering selling my Issue 1 Spectrum. Although I have u huge collection of Spectrums, …

    ... checked prices recently, but an issue 2 to 6A working, in good ... more than say £40. An issue 1 on it's own ... any interest. Then wait. If no sale, drop the price a ... bit. Wait. Again if no sale... first "bidder" gets it ...
    1024MAK 1024MAK May 2017 Sinclair Miscellaneous
  • ZX Spectrum Test PCB I recently read about one of these (I think it may have been the Retroleum site but I am not sure) and I thought "What a great idea" . As pictured …

    ... on the actual Test Rig Issue 2 PCB . So I can remove ... are some differences between the 2 boards as the Test Rig ... not leak so there are no give away signs of failure
    harriusherbartio harriusherbartio June 2017 Hardware
<1…16171819202122…34>

Latest Posts

  • I am currently watching.....
    Paradigm Shifter on 12:49AM
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    Renegade on April 21
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    John Elliott on April 21
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    rich_chandler on April 21
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issue 18.5K 25.4K
2 91.4K 149.6K
no 120.4K 156.7K
picture 10.8K 13.2K

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