World of Spectrum
  • Categories
  • Discussions
  • FAQ
  • Sign In
Home › Search
Title Search
@title beer Word 'beer' in title
User Search
  • @user admin Only posts by Admin
Text Search
  • @body beer Word 'beer' in the text
Phrase Search
"Hello World" Exact phrase match
Exclude Terms
  • car -red Search cars that are not red
"Or" Searches
  • honda | bmw 'honda' or 'bmw' results
Multi-Field
@(title,body) hello Both contain 'hello'
WildCard
  • hond* civ* Match all with an astrix
Combination
  • @title bmw @user admin
See more supported syntax examples
Search Again :: Adv Search 1000 results in 0.006s
<1…16171819202122…34>
  • 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
  • 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
  • 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
  • Ben Versteeg's November sales[COLOR="Blue"][B][SIZE="6"]Almost ready[/SIZE][/B][/COLOR] [IMG]http://benophetinternet.nl/hobby/vanmezelf/sales/line.jpg[/IMG] [IMG]http://benophet…

    ... [/IMG]

    [B]48K ULA (different types for issue 2 ...
    bverstee bverstee November 2013 Sales
  • 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
  • ROM replacement using 28C256 EEPROMThought I'd share a quick project I knocked up in order to use a 28C256 EEPROM in place of the standard 23128 ROM in the Spectrum. The connections a…

    ... EEPROM.

    Pin 1 (A15) on the EEPROM socket is ...
    balford balford 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
  • MISTER BEEP - the NEW ZX48 album 2014 "Chromospheric Flares"Hi mates. So. Here it is. Something like 2 years after the previous one - here is my new ZX Spectrum album "Chromospheric Flares". [img]http://mi…

    ... (jack) through 1-bit transducer - ULA chip.
    Sometimes it sounds ... of ZX SPECTRUM (jack) through ULA chip - the 1-bit transducer ...
    Mister Beep Mister Beep January 2014 Announcements
  • Using even ports for input?I've been looking for unused ports to use with my clashbasher interface. I understand that the spectrum only considers A0 when decoding its input p…

    ... socket.

    However the ULA is decoupled from the Z80 ... so the resistors between the ULA and the Z80 would be ... between the z80 and the ULA.

    As long as ...
    Basher Basher January 2014 Hardware
  • Which Windows Emulator will support SPECTRA?I want to start crossdeveloping games for SPECTRA, but it is a pain in the ass to save the TAP on USB Stick or SD Card and test them on my eMac SP Em…

    ... .html[/url]
    Everybody supports ULA+ which is still not available ...
    LCD LCD January 2014 Emulators
  • DIY Issue 1 Internal 32K RAM expansionFollowing on from the information in [URL="http://www.worldofspectrum.org/forums/showthread.php?t=40173"]this[/URL] thread, I finally figured this ou…

    ... and a 74HCT00N to decode A15 and /MREQ correctly to enable ...
    balford balford January 2014 Hardware
  • PlusDlite problems with 128K modelsLast year I developed the PlusDlite, and already shipped out a couple of them. Only recently I discovered some problems with 128K models. I remember…

    ... , a10, a11, a12, a13, a14, a15,
    d0, d1, d7,
    a15 & ~a14 & ~a13 & ... & niorq & ~nrd & ~a15 & ~a14 & ~a13 & ... & niorq & ~nrd & ~a15 & ~a14 & ~a13 & ...
    bverstee bverstee January 2014 Hardware
  • Timex Compute TC2048 loading problems solvedHi everybody, I've just finally fixed a TC2048 that had numerous problems. Once I'd changed all the RAM, the CPU and the ULA (surface mounted, for a…

    ... RAM, the CPU and the ULA (surface mounted, for added joy ... 0.7V threshold that the ULA uses to detect a tape ... .
    So, of course, the ULA just read a logic high ...
    Spirantho Spirantho January 2014 Hardware
  • Issue 2 with 5C102E + cockroach on eBay(Posted here and not sales as it's not mine :)) Came across [URL="http://www.ebay.co.uk/itm/151225493166"]this[/URL] earlier - early Issue 2 board, …

    ... 2 board, complete with 5C102E ULA and dead cockroach. Looks from ...
    balford balford February 2014 Hardware
  • Help with an issue 2Hello friends, Today, sadly, my issue 2 board lost his 5c112 ULA, and on my spares list I only had a 6c one that worked fine after swapping it. Now I…

    ... 2 board lost his 5c112 ULA, and on my spares list ...
    Pluto63 Pluto63 February 2014 Hardware
  • ZX Spectrum 48K board Issue Two - spider modI have a working Spectrum 48K Issue Two for sale on Amibay. It?s an early version with an ULA 5C102E and the "spider-mod" fitted. [URL="http://www.a…

    I have a working Spectrum 48K Issue Two for sale on Amibay. It?s an early version with an ULA 5C102E and the "spider-mod" fitted.

    [URL="http://www.amibay.com/showthread.php?t=57438"]http://www.amibay.com/showthread.php?t=57438[/URL]
    schombi schombi February 2014 Sales
  • Refactoring the ULAplus HDL descriptionFor the ZXUnio project, I'm refactoring the Verilog code I wrote two years ago to describe the ULA and the ULAplus devices. When I've taken this code…

    ... years ago to describe the ULA and the ULAplus devices. When ... it turned to be the ULA/ULAplus datapath.

    The ... modules were in the original ULA (light yellow), what modules were ... .

    This is the ULA/Timex/ULAplus datapath schematic (click ...
    mcleod_ideafix mcleod_ideafix February 2014 Hardware
  • Timex video mode & SamCoupe sound chip.Hi, people! I propose a solution which allows to use sound chip SamCoupe SAA1099 jointly with computers Timex 2048/2068. Everyone knows that these de…

    ... ADDRESS DECODING
    hex/dec A15 ... A0 A15 ... A0 READ WRITE
    Black_Cat Black_Cat February 2014 Hardware
  • Issue 3B suddenly goes black and whiteAnother 3B I have here had a faulty ULA, swapped that out for another and hurrah! Works! New keyboard membrane and composite mod later I load a game…

    ... have here had a faulty ULA, swapped that out for another ...
    Macc Macc February 2014 Hardware
  • Port $28FF. Why 28?Testing floating bus behaviour for ZXUno, I've found that both Cobra and Arkanoid use this specific 16-bit port: $28FF. What is so special about putt…

    Testing floating bus behaviour for ZXUno, I've found that both Cobra and Arkanoid use this specific 16-bit port: $28FF. What is so special about putting the value $28 in A15-A8 during a read to $FF?

    Thank you very much in advance! :)
    mcleod_ideafix mcleod_ideafix February 2014 Hardware
  • ZX Spectrum 48K+ Audio out, Speaker, Volume controlI have this lovely ZX which a friend gave me kindly two years ago. I cleaned him well and after a year he stopped working, so I did a full recap and …

    ... and I bought from Ben ULA, ROM, CPU and some RAM ...
    VincentGR VincentGR March 2014 Hardware
  • Using 256 color emulator to remove color clash & update graphicsWhat are your thoughts in using 256 color emulation (like [url]http://www.emulatronia.com/emusdaqui/spec256/download-eng.htm[/url] ) but limiting the…

    ... color mode for example? Or ULA+ ?
    Simply use the ZX ...
    4throck 4throck March 2014 Games
  • Spectrum Not Responding to Keyboard InputHello, sorry if this thread is not in the correct place, This is my first post and I'm not sure where to post this type of thread. :lol: Anyway, I r…

    ... Keyboard membrane, or IC1 (the ULA chip).

    ... signs of a faulty ULA chip are. Are there ... not seen any replacement ULA chips. In the event ... cannot remember exactly what ULA is on the board however ... for a certain model ULA.) Tomorrow I will check ...
    CornishManicMiner CornishManicMiner March 2014 Hardware
  • Heatsink's for ZX SpectrumAre heatsinks usefull for the chips are used in ZX Spectrum's On eBay I saw some heatsinks for ULA's, 3 for +/- 8 dollar's. And I want to know are th…

    Are heatsinks usefull for the chips are used in ZX Spectrum's
    On eBay I saw some heatsinks for ULA's, 3 for +/- 8 dollar's. And I want to know are those usefull or useless? Will the cheaper vga heatsinks also do the job?
    Reinier Reinier March 2014 Hardware
<1…16171819202122…34>

Latest Posts

  • I am currently watching.....
    Paradigm Shifter on 12:49AM
  • New video about S-video modification on Issue two 48K Spectrum.
    Renegade on April 21
  • Fixed Speccy Software. And which games remained unfixed?
    John Elliott on April 21
  • Happy 40th Birthday to the Amstrad CPC464!
    rich_chandler on April 21
  • Another Birthday! The Game Boy Is 35!
    mel the bell on April 21
  • European Software Titles with an English version
    harriusherbartio on April 21
  • Elusive Strategy Games done by the Smaller or less Prolific Software Houses.
    harriusherbartio on April 21
  • 1992 Spectrum Software
    harriusherbartio on April 21
  • +3 Disk drive motor
    AndyC on April 21
  • Celebrity deaths...
    mel the bell on April 20

HitBox

Word Docs Hits
ula 7.3K 13K
a15 353 596

Related Threads

  • ULA......Woooooo and ULA 160??'ello all from down under !<br /> <br /> they don't know the speccy well this way it seems, <br /> <br /> anyways, picked up my brand new astra yeste…
  • Serching for ZX printer ULA and ZX interface I ULAIs there anyone having any spares. In both cases, I swapped ULA's from working equipment which fixed things, so I'm 100% sure it's the ULA that is ca…
  • Where: ZX Printer ULA's and ZX interface I ULA'sIs there any source left for these ULA's? Alot of tings can be replaced, like the ZTX transistors and occasionally you can come accross a normal ZX S…
  • WANTED: 128k+ or 128k +2(early grey mod.) ULA chipHello,<br /> Attempting to repair my 128k+ speccy.<br /> Needs a ULA(IC1)chip from either a 128k+ or an early +2 will work also.<br /> If anyone has …
  • ULA schematicsHi everyone.<br /> <br /> Some while ago I remember getting hold of some circuit schematics of the innards of the Speccy 48K ULA. Sadly I've since lo…
  • ULA?Just curious, what does ULA stand for - I'm guessing Ultra Large (Gate) Array?
  • The ULA and ScreenI've asked something similar before but please bear with me.<br /> <br /> I'm trying to understand the way the screen is controlled.<br /> <br /> The…
  • sound input causing dead ula in +2 ?I have a dead +2a (it shows static black screen, no border see: [url="http://www.worldofspectrum.org/forums/viewtopic.php?topic=9619&amp;forum=4)"]ht…
  • ULA chipHi.<br /> <br /> Where i can find a ULA 6C001E-6 chip for an 3B issue Speccy ?<br /> Also looking for one 7805 heatsink...<br /> <br /> Thank
  • UlaI remplaced an ULA 6c001-6 by an ULA 6c001-7 chip on issue 3B board.<br /> It is "crucial" to remove R32 and adding the 2x NAND gates ??? or not ?<br…

Related Searches

  • 3b ula
  • issue 3b ula
  • harlequin modified ula
  • ula model 2
  • ula
  • zx 2 ula
  • zx 2 ula interchange
  • zx 2 ula swap
  • grey 2 ula swap
  • ula 128
  • ula replacement
  • 2b dead ula
  • black 2 dead ula
  • slam ula
  • wip ula
  • ula replacement module
  • ula clon
  • ula xc95144
  • spectrum 48k no ula
  • ula a15

Copyright © 2024 World of Spectrum