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Search Again :: Adv Search 1000 results in 0.012s
<1234567…34>
  • Where to get Spectrum RAMSigh. Even obsolete nixie tubes seem to be easier to get hold of than Spectrum RAM. I've tried the usual suspects (eBay and google searches), but not…

    ... recall if any of the RAM chips were socketed... actually, a ... I have some spare socketed +2a RAM chips from these boards: [URL ...
    icabod icabod November 2006 Hardware
  • How to check the whole memory on a +2 greyHi everybody!!! I suspect that i have a bad memory chip on my +2 Grey. Does anybody know if exist any utility to check the whole memory? Thanks a …

    ... removed; so it does the RAM I/O, paging & ... /> [code]
    ; Spectrum +2 (not +2A!) RAM test
    ; assemble & run ... :
    [list=a]
    [*]"RAM pass, excluding page [2 or ... , page x" (RAM I/O error)
    [*]"RAM fail: address 0000 ...
    Battle Bunny Battle Bunny January 2013 Hardware
  • Spectranet updateHi all It's been a busy summer, and in any case I've wanted a little bit of a break from doing Speccy stuff to avoid it getting old (pun intended). …

    Same problem on a toastrack and a +2a.

    Ram turbo works ok plugged in either as does the spectranet. But the spectranet will not work if both the ram turbo and spectranet are both connected (in either order )

    Any ideas ?
    Saboteur Saboteur February 2013 Hardware
  • Spectranet updateHi all It's been a busy summer, and in any case I've wanted a little bit of a break from doing Speccy stuff to avoid it getting old (pun intended). …

    ... a toastrack and a +2a.

    Ram turbo works ok plugged ... not work if both the ram turbo and spectranet are both ... one compatibility issue with the Ram-Turbo and the DivIDE in ...
    csmith csmith February 2013 Hardware
  • After-Christmas mapsCavelon [url="http://maps.speccy.cz/map.php?id=Cavelon"]http://maps.speccy.cz/map.php?id=Cavelon[/url] Doombase [url="http://maps.speccy.cz/map.php?…

    ... (it only works with Black +2A RAM-Disk right now)... but he ...
    Black Hole Black Hole June 2013 Support files
  • After-Christmas mapsCavelon [url="http://maps.speccy.cz/map.php?id=Cavelon"]http://maps.speccy.cz/map.php?id=Cavelon[/url] Doombase [url="http://maps.speccy.cz/map.php?…

    ... (it only works with Black +2A RAM-Disk right now)... but he ...
    Ivanzx Ivanzx June 2013 Support files
  • Possible dodgy +2 - resets when loadingSo I have a grey model +2 with a recently refurbed tape deck (new belts and cleaned heads). It might be a product of bad loading, but from what I ca…

    ... /forums/showthread.php?t=41027"]RAM fault on 48K Spectrum[/URL ... ] (includes a link to a RAM test from Zorn that you ... /ramtest2.asm"]Spectrum +2 (not +2A!) RAM test[/URL][/B] (note that ... /ramtest2.tap"]Spectrum +2 (not +2A!) RAM test TAP file[/URL][/B ...
    1024MAK 1024MAK August 2013 Hardware
  • RAM Turbo on +2AHello Spectrum-fans, does anybody know if the RAM TURBO Joystick interface (this with cartridge slot like the INTERFACE2) can be used with a +2A? I …

    Hello Spectrum-fans,

    does anybody know if the RAM TURBO Joystick interface (this with cartridge slot like the INTERFACE2) can be used with a +2A? I don?t want destroy a machine to test it.

    Regards

    Thomas
    Speccyman Speccyman June 2009 Hardware
  • 128K+2A/+3 RAM layoutDoes anybody know how physical RAM is mapped to ZX 128k+2a/+3 address space ? There are four 64Kx4 chips IC4-IC7. IC4-IC5 seems to be contended (vide…

    ... know how physical RAM is mapped to ZX 128k+2a/+3 address ... be contended (video RAM). It would mean RAM banks 4-7
    RAM test program, can be on ...
    kpuchatek kpuchatek July 2011 Hardware
  • +2A ProblemHi ! I just got a +2A and it has a powerup problem. When I turn it on it just displays 1987 1987 over the first few lines and a random attributes p…

    ... />
    I just got a +2A and it has a powerup ... it can be a ROM/RAM problem. The other thing I ...
    Tom-Cat Tom-Cat May 2005 Sinclair Miscellaneous
  • Help with dead Spectrum +2aHello. My Spectrum +2a died some time ago. It was powered on, I looked away and next time I looked at it, screen was black. I have replaced the 4 r…

    Hello.

    My Spectrum +2a died some time ago. It ... . I have replaced the 4 ram ICs, Z80 and ROM ICs ... be ok, cause my second +2a is working.

    The ... much less documentation on fixing +2a/+3s compared to 48k.
    Timppa Timppa July 2005 Sinclair Miscellaneous
  • Any interest in new low-cost mass-storage interface with 512K RAM?I've recently added support to ResiDOS and the +3e ROMs for SD/MMC card interfaces; in particular, ZXMMC (which has no onboard RAM and so is only sup…

    ... (which has no onboard RAM and so is only supported ... be the 512K battery-backed RAM and a snapshot button. ... support the +3e ROMs (+2A/+3 owners only) and ResiDOS ... in the built-in RAM and are instantly available ... run from the built-in RAM, including ZX80 and ZX81 ...
    glancaster glancaster January 2007 Hardware
  • Galaksija emulator for ZX Spectrum +3/+2A(black)This is a NEW program/utility/game pack for ZX Spectrum. It is basically an emulator of an ex-Yugoslav computer "Galaksija" which is also Z80 based. …

    ... ZX Spectrum +3/+2A(black) because Galaksija has RAM at $2000 (which ...
    Tom-Cat Tom-Cat February 2007 Emulators
  • Joystick Interfaces 4 The +2AWanted to know does a Ram Turbo Joystick Interface work on a +2A as i can get a few of these local plus i wanted to use other joysticks with my new +…

    Wanted to know does a Ram Turbo Joystick Interface work on a +2A as i can get a few of these local plus i wanted to use other joysticks with my new +2A.
    morcar morcar March 2008 Hardware
  • RAM paging and port usageDear users and developers, I'm just trying to find some detail information about RAM paging on the Spectrum 128 and later models, especially those a…

    ... some detail information about RAM paging on the Spectrum ... .

    Spectrum +2A and +3:
    if port ... TC2068, TS2068
    No RAM paging, but always fixed 48k ... the first 8 RAM pages (RAM 0..RAM 7) is paged ... the second 8 RAM pages (RAM 8..RAM 15) is paged ...
    clausjahn clausjahn June 2008 Hardware
  • Dangerous Allram Mode On +2a / +3ZX Spectrum 128+2A and +3 support allram feature on port 1FFD. On this ZX models is very dangerous set allram if is connect any interface with extern…

    ZX Spectrum 128+2A and +3 support allram feature ... and connect external memory rom/ram to data bus. If in ... effect (ZX+2A/+3 can't disconnect ram) and ZX ram data will ...
    velesoft velesoft December 2008 Hardware
  • General question about electronics I guess... (128k +2a)[Short question] When I very slightly put my finger on top IC15 on my +2A the TV picture becomes crazy and the spectrum acts if it just resets I don…

    ...
    [long question]
    My +2A stopped working and I think ... help
    my +2a stopped working right in front ... many resets sometimes the +2a boots into 48k mode
    RAM test that checked ok... ... 2 ROM chips from another +2a
    I've ...
    Nuno2009 Nuno2009 August 2009 Hardware
  • Some ever noticed that +2A/+3 halts Z80 using WAIT?I mean: Anyone ever noticed that the +2A/+3 halts the Z80 using WAIT? All documentation I've read about contention state that the ULA halts the Z80 …

    ... : Anyone ever noticed that the +2A/+3 halts the Z80 using ... that, al least, the Spectrum +2A issue 1 (and I'm ... 16385) loaded at the screen RAM, so contention should be strong ... depend upon the speed of RAM, speed of ROM, and maybe ...
    mcleod_ideafix mcleod_ideafix October 2009 Hardware
  • +2A extended memory map & ULA bug?The [URL="http://www.worldofspectrum.org/faq/reference/128kreference.htm"]128K reference page[/URL] says: [quote]The ULA bug which causes snow when I…

    ... Spectrum +2A if I switch to special paging mode, with RAM bank ...
    ajmoss ajmoss June 2010 Hardware
  • ZX Spectrum +2A glitchesHi again! I'm very happy to realize that there are so many people ready to help and even argue for how to help better. Hope there is no limit for amo…

    ... realized that my recently bought +2A machine works not as it ... tested in Spectaculator set on +2A emulation.

    I own ... some of higher sectors of RAM, while lower ones still work ...
    Lady Eklipse Lady Eklipse August 2010 Hardware
  • Newbie questions about +2a - joystick interfaceI brought a +2a system back from London with me on a recent vacation and have gotten it working here in the states. I've found that if I plug my joys…

    I brought a +2a system back from London with ... also tried an external interface (ram turbo) and they seem to ...
    98PaceCar 98PaceCar December 2010 Hardware
  • Ram Turbo compatibilityThe Ram Turbo interface, couple of joystick ports (iirc they can be Kempston too) and a IF2 style cartridge slot. This one > [url]http://www.worldofs…

    The Ram Turbo interface, couple of joystick ... with a few things missing) / +2A = No chance.

    Am ...
    spider spider March 2012 Hardware
  • Grey +2 and black +2A keyboards, funny !!!Hi all, Yesterday I was working on a destroyed +2A (case and motherboard)... I changed the ram, and the MB returned to life. But the keyboard is dead…

    ... destroyed +2A (case and motherboard)...
    I changed the ram, and ... keyboard of my other +2A, and it worked. I ... the membrane...
    The +2A keyboard membrane has a 11 ... 128+2 on the poor +2A, just for fun :D ... works on a black 128+2A !!!

    Grey ...
    bugpat bugpat March 2013 Hardware
  • Interface obstruction on +2AWill an Interface II actually connect to a +2A without obstructing the power connector? I guess it's fairly obvious a RAM Turbo won't work. I had t…

    ... II actually connect to a +2A without obstructing the power connector ... it's fairly obvious a RAM Turbo won't work.
    2A / +3?
    joefish joefish May 2013 Hardware
  • Diag rom works cartridge on +2A/+2B/+3I'm not sure anyone has tested this before: using the diag rom (Paul Farrows) on a +2A/+2B/+3. I had a +2A with a problem, so I wanted to use the di…

    ... rom (Paul Farrows) on a +2A/+2B/+3.

    ... I had a +2A with a problem, so I ... /> But both Interface 2 or RAM Turbo won't work by ... /ROM2 on a +2A/+2B/+3.
    - the RAM Turbo simply doesn ... not large enough for the +2A/+2B/+3 power connector.
    bverstee bverstee September 2013 Hardware
  • ZX Spectrum +2A - Issue loading gamesHi! I have my ZX Spectrum +2A with a very strange issue regarding games loading. The thing is that I can only load a few games from the Datacorder o…

    ... /> I have my ZX Spectrum +2A with a very strange issue ... . No results.
    - I replaced RAM with 4 Goldstar GM7IC464A-80 ...
    [UFO] [UFO] May 2014 Hardware
  • spectrum +2A loading problemHi new here ! I have recently purchased a 2A thinking it would be more reliable than my old rubber key machine and external tape drive. Problem i…

    ... /> I have recently purchased a 2A thinking it would be more ... old speccy but on my 2A it loads to the end ... don't think it's ram as the games appear to ...
    Cheesecake0304 Cheesecake0304 February 2015 Hardware
  • Shadow of the Unicorn loader for +2A / +3hi, i have tried to load SotU with the [url="http://www.worldofspectrum.org/infoseekid.cgi?id=0023000"]RAM loader from Fraser Ross[/url], which is l…

    ... /infoseekid.cgi?id=0023000"]RAM loader from Fraser Ross ... determined that the loader uses ram page #4 for rom ... and ram page #4 should be contended on the +2A/+3, ... WoS page about contended ram pages on +2A/+3 is [in ... ]correct?
    Is the ram page ...
    Kio Kio February 2016 Games
  • sam coupe with external 1mb ramvelesofts site has snaper disks: https://velesoft.speccy.cz/sam_zx128.htm when you use masterdos to detect the external 1mb of ram interface th…

    ... detect the external 1mb of ram interface then the snaper emulator ... lets you select the fast ram and the zx spectrum game ... uses this ram above 32768 this gives you ... was more compatible than the +2a/b and +3!

    rogerjowett1 rogerjowett1 June 2018 New game ideas
  • +2aI have a +2a and it wont boot properly get the white border with black square when first powerd on but then just goes into a black screen instead of …

    I have a +2a and it wont boot properly get the white border with black square when first powerd on but then just goes into a black screen instead of menu anyone have any thoughts or could help with the problem would be most appreciated
    mark mark November 2001 Sinclair Miscellaneous
<1234567…34>

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  • RAM Turbo on +2AHello Spectrum-fans,<br /> <br /> does anybody know if the RAM TURBO Joystick interface (this with cartridge slot like the INTERFACE2) can be used wi…
  • 128K+2A/+3 RAM layoutDoes anybody know how physical RAM is mapped to ZX 128k+2a/+3 address space ?<br /> There are four 64Kx4 chips IC4-IC7. IC4-IC5 seems to be contended…
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