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zx spectrum display corruption .. with lower ram module installed[img]https://photos.app.goo.gl/Gu6rjC5v21sZxwTX9[/img] [img]https://photos.app.goo.gl/FznVw8SkbbhWn5mh7[/img] another specie question : i have …
... removed the rom, tried different ULA,recap,composite mod, voltages are ... -
Repairs and Reparing.Hi All, Just finished resurrecting an Issue 3A board. Had black lines, so replaced the lower 16K RAM chips, Amazed they just cost a couple of doll…
... 'm terrified of losing a ULA as I imagine they are ... -
Microdigital TK95 / TK90X - my experiencesAs asked for by Renegade [url="https://worldofspectrum.org/forums/discussion/58189"]here[/url] I'll do a short writeup of my experiences with my TK90…
... -N _or_ PAL-M (the ULA supports both standards) to get ... be done (since the TK-ULA outputs RGB + bright directly) but ... -
zx spectrum 48k issue 6A boot fail- black paperohh whats wrong with this poor specie .. boot fail,, border white & paper black .. when reset it shows the red lines to indicate that the CPU is cycl…
... a known working -7 type ULA. checked most of the signals ... -
Keyboard Encoding. Would like to gather thoughts on it.Hi all, I've almost finished the first part of my open-spectrum design, and wanted to bounce one of the ideas I'd incorporated off people prior to…
... lines coming from the A8-A15 addresses, and couples this with ... -
zx spectrum +2 RGB cable /// pin out/ voltagesi have a +2 cable that seems to be made well from a well known supplier.. it actually came with a +2A i recently brought but most defiantly is not su…
... strain on other components ie ULA,TEA2000 . normally i make a ... -
New Version of ZEsarUX v9.3 Beta 1 availableNew Version of ZEsarUX v9.3 Beta 1 available Downloads: [url="https://github.com/chernandezba/zesarux/releases/tag/9.3-25062021"]https://github.co…
... window height
Fixed Next ULA Scroll to use registers 0x26 ... -
specie external keyboard - revision one -[img]https://photos.app.goo.gl/pqeYpXnLqTwYkLvKA[/img] revision one of my external keyboard ... wow it actually worked after a little bit of crash…
... read .. trying to read the ULA book by chris smith .. very ... -
boot fail .. bad address lines A7,A12,A13anybody have any ideas what could be wrong with this specie issue 3B .. work done : removed rom, upper ram & logic put lower ram multiplexers in sock…
... ) tried different CPU's & ULA's. fitted lower ram module ... -
Missed opportunities in the 80'sAll the talk of the Loki got me thinking... What if someone had built an expansion box for the speccy that had the 3812 Yamaha music chip ( Adlib Sou…
... keyboard, doing away with the ULA and taking things from there ... -
Spectrumpedia revised and extended edition. Suggestions about possible new contentFor the 40th anniversary of the first launch of the Spectrum, I am going to revise the Spectrumpedia. Feedback was very positive, although the fact t…
... /> Smith, Chris, [i]ZX Spectrum ULA, The: How To Design A ... -
5C Horizontal timing vs 6C horizontal timing.Hi all, Just considering the timing difference in the video signal between the 5C and the 6C where the 6C ULA seems to have 50% longer horizontal …
... the 6C where the 6C ULA seems to have 50% longer ... -
ZEsarUX 10.0ZEsarUX 10.0 is out! Download it from : https://github.com/chernandezba/zesarux/releases/tag/10.0 Changes: Version 10.0 - Clive Sinclair edi…
... window height
Fixed Next ULA Scroll to use registers 0x26 ... -
Picked up a broken Interface 1...It locks up the Spectrum when an Interface 1 command is issued. Anyone want to have a guess as whether it's the ULA or the ROM or something else c…
... as whether it's the ULA or the ROM or something ... -
Spectrum Abuse...Just got some new Spectrums in to repair ( I find it a great way to relieve stress, excepting when I do something daft while fixing them... ) One …
... another... No video, no clock. ULA seems dead, but no video ... what they did to the ULA to stop it working.
Using a thermal camera to fix speccy's.Hi All, Thought I'd share another repair... Got a board that collapsed the bench supply straight away ( I run a bench supply and give it just enou…
... 16 K ram chips. The ULA can be seen below them ...New release of ZEsarUXFound today by chance on: [url]https://github.com/chernandezba/zesarux/releases/tag/10.1-13122021[/url] [quote]ZEsarUX-10.1 Beta1 Pre-release che…
... />
Added setting to change ULA Data bus value
Added ...Building a ZX Spectrum 3B, Looking for PartsAs the title says, I'm attempting to build a new ZX Spectrum, but I'm having some trouble locating all of the parts. Thus far, I've got all of t…
... ICs as well (including the ULA!).
However, the coil ...shamazx dma 15x anyone intereted? was hoping to get ula+ full screen animations working any programmers think they could disect rtype replace screen scrolling…
... intereted? was hoping to get ula+ full screen animations working
shamazx dma15x anyone intereted? was hoping to get ula+ full screen animations working any programmers think they could disect rtype replace screen scrolling w…
... intereted? was hoping to get ula+ full screen animations working
shamazx dma 15x anyone intereted? was hoping to get ula+ full screen animations working any programmers think they could disect rtype replace screen scrolling…
... intereted? was hoping to get ula+ full screen animations working
Click with CliveProud to announce a new release, Click With Clive [url="https://jbizzel.itch.io/click"]https://jbizzel.itch.io/click[/url] I'm also working on …
Proud to announce a new release, Click With Clive
[url="https://jbizzel.itch.io/click"]https://jbizzel.itch.io/click[/url]
I'm also working on a Next version and ULA+ support, that will be part of this release once complete.Exact emulation of the Snow effectAs the original post on another forum is outdated, and for those who don't know about that forum, I duplicate this info here: At the beginning of …
... reading screen data by the ULA and memory regeneration by the ... , the interference of reading ULA screen data and memory regeneration ... those that based on original ULA.
Additionally, ... cycle with the ULA screen drawing cycle, the ULA works normal, ...BEST EMULATOR EVER ?!?somebody already proved many emulators? what is the best emulator?
I've found RealSpec to be quite stable under windoze (even NT!) - It's definitely worth it for the excellent accurate ULA emulation - even if you have to DOS restart.Comcon programmable interfaceRemember this beast, back in 83/84? You used plugs to determine what key each direction on your joystick responded to. It apparently had two fire but…
... with the +2a because the ula overrides. The same is true ...spectrum problemshello, I just recieved a spectrum 48k on ebay [img]/__forums/images/smiles/icon_smile.gif[/img] (I live in the U.S.) I have a transformer to conver…
... into the spectrum, maybe the ULA is the component damaged.spectrum problemshello, I just recieved a spectrum 48k on ebay [img]/__forums/images/smiles/icon_smile.gif[/img] (I live in the U.S.) I have a transformer to conver…
... /> I did notice that the ULA chip, after touching it for ... would try to get another ULA chip.
The motherboard is ... can be replaced including the ULA.spectrum problemshello, I just recieved a spectrum 48k on ebay [img]/__forums/images/smiles/icon_smile.gif[/img] (I live in the U.S.) I have a transformer to conver…
Not very normal for me, the ULA can be a little hot but not realy too much, and can do it after a few minutes, not seconds. The question is where you can find another ULA? The only answer I know is other damaged spectrum.spectrum problemshello, I just recieved a spectrum 48k on ebay [img]/__forums/images/smiles/icon_smile.gif[/img] (I live in the U.S.) I have a transformer to conver…
Other than accidents the ula usually went first, heat dissapation or the lack it.+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 …
... ROM
3) Screwed up ULA that can no longer output ...
