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ULA pinsHi I am trying to figure out where on the ULA , among other things, the VYU pins are. I have been reading schematics , but I am really lost when I …
... figure out where on the ULA , among other things, the VYU ... good description of how the ULA reads from video ram from ... -
ULA 6C001EX-7Last night I visited a friend of mine and had a look at the ULAs in his Spectrums. He has a 5C102E 8220 in a 16K issue one, a 5C112E 8237 in a 16K is…
... issue one (definitely a replacement ULA, there was evidence of where ... />
He also had a ULA I had never seen before ... -
5C series NTSC ULA 5C114E 8248Not sure if this has been mentioned before; I haven't seen anything about it online. Chris Smith's book discusses 6C011E as the NTSC ULA sold in Spec…
... discusses 6C011E as the NTSC ULA sold in Spectrums in Chile ... Issue 3 style 6C series ULA.
Here we have ... much earlier 5C series NTSC ULA, in a Spectrum with a ... time the 5C112E-2 PAL ULA was being made.
Which ULA to fit in which issue SpectrumI spent a little while studying the resistor changes on page 30 of the ZX Spectrum 48K service manual. They all concern aspects of the video circuit …
... problems to have the correct ULA for that board.
ULA. 220R for 5C112E, 1K for ... 6C001E. The older ULA seems to be designed for ...Wanted Spectrum ULAI'm looking for a working replacement ULA for my Issue 3B Spectrum. Revision 6C001E-6 or 6C001E-7. Thanks!
I'm looking for a working replacement ULA for my Issue 3B Spectrum. Revision 6C001E-6 or 6C001E-7.
Thanks!ULA 6C001E-7After doing an audit of my Spectrum PCBs, I find I have one too many 6000 series ULAs and one too few 5000 series ULAs. Would anyone like a 6C001E-7 …
... anyone like a 6C001E-7 ULA in exchange for a 5000 ... series ULA, either 5C112E, 5C112E-2 or ...Wanted: ULA 5C112E, 5C112E-2 or 5C112E-3After doing an audit of my Spectrum PCBs, I find I have one too many 6000 series ULAs and one too few 5000 series ULAs. Does anyone have a 5000 serie…
... anyone have a 5000 series ULA, either 5C112E, 5C112E-2 or ...48k Spectrum ULA issue?Hi All, Have a couple of Spectrums Plus' with their orignal ULAs showing the failure as in screen 2 on the left. [URL="http://hardware.speccy.org/i…
... confirm this is probably the ULA? I get the same error ... in other Spectrums using the ULA's so I'm virtually ...Toastrack ULA QuestionDid any of the toastracks have the +128 grey ula with Amstrad printed on them?
Did any of the toastracks have the +128 grey ula with Amstrad printed on them?IF1 Ula Questionim thinking about getting an interface 1 but im aware that there is/was an issue with the ula.My question is if i have the opportunity to buy one but…
... /was an issue with the ula.My question is if i ... or a deformity above the ula does this mean i need ... they still functional but the ula gets hot?can someone explain ...ULA type and datecode listHere is a list of all known ULA datecodes with type, collated from various threads and the serial numbers list. For the 6C series ULAs without a -5, …
... a list of all known ULA datecodes with type, collated from ... probably a replacement ULA.
[CODE]DATE ULA ISSUE(s)
ZX81 ULA questionRecently, I got a nice bundle of kit comprising of a ZX81, Memotech keyboard, PSU and brand new 16K Sinclair Memory pack. The ZX81 has a ULA with no…
... />
The ZX81 has a ULA with no ID other than ... /> Unfortunately all chips except the ULA are socketed.48k Spectrum ULA 6C001E-6 ChipAs title says, for sale: ULA 6C001E-6 Chip PM if interested.
As title says, for sale: ULA 6C001E-6 Chip
PM if interested.ULA queryDoes it matter which version ULA fits in a version of the spectrum motherboard, or are they are compatible with each other?
Does it matter which version ULA fits in a version of the spectrum motherboard, or are they are compatible with each other?Issue 3 ULA ProblemsI've been given an Issue 3 48k to fix. It was producing no video and no picture on the TV. The coil was buzzing so it was getting power and all the v…
... problem might be with the ULA.
Sure enough, ... it with a spare ULA from an Issue 4( ... I decided to swap the ULA again for one out of ... .
If the ULA is only partially working, and ... the wrong tree with the ULA because when dropping the ...Non-Ferranti ULA 6C001E-7?Hello! I don't like Iss2 boards that much but after revising one Speccy like that for a friend, the results were so positive that I decided to have …
... ever seen a 6C001E-7 ULA with no indication of "Ferranti ...Heatsink for ULAHi, My Speccy 48k issue 4s starts to get temperamental when it's been on for a while. Machine itself is fine but loading gradually becomes more unre…
... chum on Twitter suggested the ULA might be getting hot.
ULA might cure it? Question is ... put a heatsink on their ULA?
Cheers ...ZX81 ULA Swap questionHi Can someone remind me if all three versions of the ZX81 ULA are electrically compatible? I just bought a ZX81 with an older ULA, so it lacks the …
... three versions of the ZX81 ULA are electrically compatible? I just ... a ZX81 with an older ULA, so it lacks the backporch ... happen to have a good ULA 2C210E. Can I simply swap ...ZX Spectrum+ DivMMC EnJOY! Grundig 16" LCD TV and books.The Spectrum is in very good condition. Composite video mod. New mambrane (bought in November 2014 from rwap_software [url]http://www.sellmyretro.co…
... /> - Standard initial tests suggest no faults.
- Power on: 600 ... 3 V P-P at ULA pin 28 on executing command ... with Spectranet interface attached. No faults found.
- 15 minute ... of Memtest program reports no faults.
- Verified cassette loading ...Fully refurbished ZX Spectrum 48K boards incl. ULA- Including ULA (version that [URL="http://www.bytedelight.com/?p=41"]corresponds to the board issue[/URL] - click to find out more about ULA version…
- Including ULA (version that [URL="http://www. ... to find out more about ULA versions)
- All new electrolytic ...Ferranti ULA ULA5C112E-3 ICBeen clearing out some computer bits and I have a ULA (part number ULA5C112E-3, taken from an Issue 2 48K if I remember correctly and working when it…
... bits and I have a ULA (part number ULA5C112E-3, taken ...ULAAre ULA's (for Spectrum 48k's) interchangeable through the different issues? To give some background, to work out what was wrong with an old speccy I…
Are ULA's (for Spectrum 48k's) ... , I tried an issue 3 ula in an issue 2 board ... was done. The issue 3 ULA was then placed back in ...ULA 1E7 in 3B board?Hi all. Any comments on the following would be appreciated. I have an issue 4a and an issue 3b Spectrum. While having a look around inside the 3b …
... noticed it contains a 1E7 ULA. I then opened my ... it has the same model ULA.
Having read ... onwards which had the 7 ULA, whereas the 3b should ... me has just changed the ULA?
What's ... that I understand the 7 ULA may generate a clearer ...ULA Replacement??I searched, but maybe I just missed it. Has there (or is there) anyone working on a ULA replacement either as an FPGA or CPLD package? Or, perhap…
I searched, but maybe I just missed it.
Has there (or is there) anyone working on a ULA replacement either as an FPGA or CPLD package? Or, perhaps something else such as a microcontroller?
ThanksRetroleum Nebula - A Spectrum ULA replacement moduleHey you guys.. Just wanted to mention a new Spectrum doobrie created by myself (Phil Ruston) and Alessandro Dorigatti: Namely, the Nebula - A Spec…
... , the Nebula - A Spectrum 48 ULA replacement module. You can read ... .uk/electronics-articles/nebula-spectrum-ula-chip-replacement-module/
ULA book:)
Cheers,
Currah Microsource ULA & ROMI have a few original (over one hundred) brand new (1986) Microsource ULA's and ROMs in prefect condition. Is anyone interested? My user name may …
I have a few original (over one hundred) brand new (1986) Microsource ULA's and ROMs in prefect condition.
Is anyone interested?
My user name may help authenticate this post.Memory and Replacement ULA modules.Thought you might like to see my future proofed 48k version 6A with some upgrades fitted. Has had the following... Recap. Traco Power TSR 1-2450 p…
... .zigg.net/
Nebula Spectrum ULA Chip replacement module from... http ... .uk/electronics-articles/nebula-spectrum-ula-chip-replacement-module/
Runs ...How to turn OFF the "ULA Plus"??Hi. We've made a platform-game for 128k. While testing it on 2 machines with ULA+ we have noticed the colours are crap. Can You suggest h…
Hi.
We've made a platform-game for 128k.
While testing it on 2 machines with ULA+ we have noticed the colours are crap.
Can You suggest how to turn off the ULA+ in the code?ZX-Paintbrush and global palette and ula+ supportHello, I think I need some help for the palette issue of ZX-Paintbrush. I want to check whether the way I'm about to clear the palette handling i…
... the user activates ula+ feature (by opening the ula+ palette editor, ... /> When I now enter the ula+ palette editor...
[img ... with the new option "Deactivate ula+ palette". This switches back ... colours of the last selected ula+ palette unchanged. To reset ...
