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<1…28293031323334>
  • Issue 4A black paper, white borderJust had one of these through, nice yellow pcb! Everything but the ULA soldered in. On power up I get black paper, white border and some intermitten…

    ... yellow pcb! Everything but the ULA soldered in.
    On power ...
    Macc Macc August 2013 Hardware
  • Corrupt paper on zx spectrum 48kHi. When I power up my spectrum (issue 3) I get the light grey border, but the paper is black and it switches between thin red vertical lines and thi…

    ... . Could it be a defect ULA, or one of the RAM ...
    zxviking zxviking August 2013 Hardware
  • spectrum issue 6a oddityMorning everyone Bought a speccy (rubber key) from ebay in near mint condition - couldn't tune in on analogue particularly well so did the comp mod …

    ... />
    I was thinking bad ULA but not sure - if so ...
    actualreality actualreality August 2013 Hardware
  • Spectrum 48k video and keyboard issueHi all, few days ago I experimented with battery supply for my speccy (48k issue 2), and I was measuring the voltage and how much current it used. A…

    ... hope it's not the ULA because replacements are hard to ...
    dimewos dimewos September 2013 Hardware
  • ZX Spectrum clock signals comparedI haven't searched for this on WoS; it might have been posted before. But I think it's important info, and can't do any harm to repeat or show from a…

    ... />

    [U]ZX Spectrum ULA differences[/U]
    As you ... +2 use the same ULA, but this ULA is very different from ... the 48K ULA.

    Allthough the toastrack ... connector comes directly from the ULA.
    The Z80 gets the ...
    bverstee bverstee September 2013 Hardware
  • Parts listAre there any list of parts - caps, resitors, transistors etc. - for Spectrum motherboard revisions. Im thinking I may need to replace te electrolyt…

    ... is it a case of buying a bunch of each type ...
    rune rune September 2013 Hardware
  • Help identify this?I picked this up recently on buying expeditions. I'm assuming it's for the Speccy... [URL=http://s21.photobucket.com/user/chaosmongers/media/IMG_01…

    ... picked this up recently on buying expeditions. I'm assuming it ...
    chaosmongers chaosmongers September 2013 Sinclair Miscellaneous
  • Galaxy Note 3, region lockedFrom [url]http://gigaom.com/2013/09/26/seriously-samsung-sorry-european-roamers-but-the-new-galaxy-note-3-is-region-locked/[/url] [QUOTE]People buyin…

    ... -locked/[/url]
    [QUOTE]People buying the unlocked Galaxy Note 3 ...
    Timmy Timmy September 2013 Chit chat
  • Another broken SpeccyHi all I have been given another ZX Spectrum, this time it has a really odd problem as you can see in the video: [URL="http://youtu.be/ZOSiBEYQD7w"…

    ... , works fine
    Checked the ULA on another Spectrum - all good ...
    actualreality actualreality September 2013 Hardware
  • Spectrum +2 little help pleaseHi all, Firstly let me say, what an amazing site this is! So much incredible detail and information, created by what looks to be a very dedicated an…

    ... ago. Yes i'll be buying a replacement when i figure ...
    Edge Edge September 2013 Hardware
  • Defective +2 grey with only random coloured screen while powering onHi, so the story goes: After buying myself an divIDE and a grey +2, this runs well for a few days. But while playing a game the picture stucks and …

    ... /> so the story goes: After buying myself an divIDE and a ...
    Luzie Luzie September 2013 Hardware
  • Presenting the Steamxbox!Valve have announced the prototype specifications for their new console, the Steambox. Actually, ignore the 'prototype' bit, as if you know anything …

    ... do wonder who will be buying a Steambox. Both the Playstation ...
    ewgf ewgf October 2013 Chit chat
  • Toastrack trouble[IMG]http://i44.tinypic.com/11lq7id.jpg[/IMG] Sorry about the picture size, cant figure out how to make it smaller! Anyway, the pic says it all, th…

    ... (that does work as intended). ULA gets extremely hot after about ...
    Macc Macc October 2013 Hardware
  • LOT of Spectrum Games For SaleHi all, So a while back I ended up buying a job lot of retro stuff from a guy who I used to work with. This all belonged to his late father and he …

    ... while back I ended up buying a job lot of retro ...
    Rocky1980 Rocky1980 October 2013 Sales
  • ZX81 hires gamepack for good cause.[B]1K Hires games pack finally for sale! [/B] Hello World, great news! I found someone to help me make tapes for the 1K hires game collection. As…

    ... feeling you will get from buying this tape.

    More ...
    Dr BEEP Dr BEEP October 2013 Sales
  • Credit card fraud.Some little **** has gone on a spending spree with my card. Mostly buying stuff from zavvi.com. I've cancelled my card and its been passed to the c…

    ... spree with my card. Mostly buying stuff from zavvi.com.
    1980-20.. 1980-20.. October 2013 Chit chat
  • eBay 128K Spectrum RGB cables overheat the Spectrum!?Hi everybody, For a long time I've wondered why Spectrum 128K Toastracks were overheating when using my Retro Computer Shack RGB SCART cable. Today …

    ... the composite SYNC! The poor ULA is driving the RGB switching ... is too much for the ULA, and it gets too hot ... /> You can tell if the ULA is over-stressed by measuring ... pin 23 (CSYNC) on the ULA. It should be about 3 ... is my Spectrum 128K's ULA, and that's too high ...
    Spirantho Spirantho October 2013 Hardware
  • Anyone Buying a PS4 or Xbox One as Soon as They Are Released?...or, like me, will you wait until they are much cheaper and much smaller. I'm guessing most people on here are over 30 and have bills to pay so ?35…

    ...or, like me, will you wait until they are much cheaper and much smaller. I'm guessing most people on here are over 30 and have bills to pay so ?350+ seems like a rather large amount of cash for a new machine.

    Mind you, every time my car ...
    mrmessy mrmessy November 2013 Chit chat
  • 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…

    ... random fill test. Replacing the ULA gets rid of the patterning ... other 4116's and a ULA... :-o

    Looking back ... :x plus the 5C112E-2 ULA's only good for issue ...
    balford balford November 2013 Hardware
  • Simulate errorshi, i would like to know if its possible to simulate errors on an emulator? Like bad memory or bad ULA. Salut

    hi,

    i would like to know if its possible to simulate errors on an emulator?
    Like bad memory or bad ULA.
    Salut
    landex landex November 2013 Emulators
  • Humble WB Bundle![youtube]T3odm79gCnE[/youtube] [url]https://www.humblebundle.com/[/url] Not a bad bunch of games, especially for whatever you want to pay! I though…

    ... up....I won't be buying them as I already have ...
    deadpan666 deadpan666 November 2013 Chit chat
  • Another way to add audio input on a +2 - No more low level sound problem !Hi all, Last week, with 3 friends, we participated to a modelism / games / hobbies meeting, and we made a retro computing stand... (big succes, I'll…

    ... ) that proceeding that way, the ULA is protected.
    The Speccy ...
    bugpat bugpat November 2013 Hardware
  • ZX Interface 1 ULAs FOUND !!Thanks to Ian Gledhill (of Mutant Caterpillar) we have now acquired a stock of replacement ZX Interface 1 ULAs. These are new old stock and have a d…

    ... a later version of the ULA.

    See [url]http ... /%2ARARE%2A-ZX-Interface-1-ULA-Chips---LA15-312-3481[/url ...
    rwap rwap November 2013 Sales
  • ZX Spectrum 48k - no CLK signalHello I'm trying to repair ZX Spectrum 48 mainboard issue 3B. When i check signal with oscilloscope on X1 or on ULA pin 39. I get stable 2V no clock…

    ... oscilloscope on X1 or on ULA pin 39. I get stable ... no clock pulses. Can broken ULA chip be the cause of ...
    gottrek gottrek November 2013 Hardware
  • Spectrum +3e acting up...Hello, Well, my Spectrum +3e is starting to act up. All 48k games load fine but now no 128k games will load :/ In one 128k game, in the beginning r…

    ... there a memory test or ULA test, etc... for the +3 ...
    thomas3120 thomas3120 November 2013 Hardware
  • a few questions1. When will emulators use pc vga capabilities to emulate the uhf tv output accurately including phosphoric delay and crosstalk synchronization 2. W…

    ... hardware interlace like the spectra ula+ or zx prism

    morcar morcar November 2013 Sinclair Miscellaneous
  • Tricky ZX RepairHello guys, This time I put my hands on a very nice Issue 3 16K, upgraded to 48K. To bertter explain "nice", it is absolutely mint, not a scratch on…

    ... .

    Hmmmm... swapped the ULA, but it also worked perfectly ... puzzled. Apart from ROM and ULA, there's nothing else on ...
    Falco-F8L Falco-F8L December 2013 Hardware
  • Black Screen Spectrum 48kWas working ok, it came to me in a Fuller FDS keyboard, I had a nose inside and found a floating power lead connected to the keyboard, I removed that…

    ... />
    Update: Tried another working ULA and it's not that ...
    OttO OttO December 2013 Hardware
  • Interesting 48K failureI thought I'd recount a failure I've not seen mentioned before that I saw tonight while fixing a 48K issue 6 board. The background: The initial fail…

    ... the Z80.
    3. Intermittent ULA fault (easily testable - since the ... IOREQ high thus preventing the ULA from seeing odd numbered I ... was never fixed inside the ULA - TR6 instead became part of ... an NMOS output), causing the ULA to sometimes see spurious IO ...
    Winston Winston December 2013 Hardware
<1…28293031323334>

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