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ZX 81 / TIMEX TC1000 2C210E ULA'sHi, up for sale: 11x tested 2C210E ULA's, for the ZX Spectrum ZX81 or Timex TC1000. Asking price £29 shipping included to EUROPE, £33 for the …
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11x tested 2C210E ULA's, for the ZX Spectrum ... -
ZX Spectrum 48k ULAlooking for a ZX Spectrum 48k ULA Thanks Phil
looking for a ZX Spectrum 48k ULA
Thanks
Phil -
Help with transistor replacement in audio ampHi folks, I'd like to replace two of the transistors in my audio amplifier which I suspect are causing crackling noise in one of the channels. Ori…
... there appears to be a replacement simply named 2SC1815 with no ... -
The I register pointing to $40–$7f causes ULA snow and a crash. Or does it?I have heard it from numerous sources, including a few members of this forum, that 128K/+2 machines crash if the I register points to a range of $40–…
... no avail. I get the ULA snow, sure thing, but that ... -
New colour palette for 16K/48K/+ machines, based on ULA YUV voltagesI’ve made a colour palette for 16K/48K/+ machines, based on the YUV voltage tables in Chris Smith’s book The ZX Spectrum ULA. This colour palette …
... ’s book The ZX Spectrum ULA.
This colour palette ... use the original Sinclair Ferranti ULA, 5C102E, 5C112E or 6C001E. It ... -
6C001EE-7 ULA A ULA ID I haven't seen before, possibly a misprint? Found on an issue 6A board in a rubber key 48k. Any ideas? [img]https://pbs.twimg.com/media…
A ULA ID I haven't seen before, possibly a misprint? Found on an issue 6A board in a rubber key 48k. Any ideas?
[img]https://pbs.twimg.com/media/DbYC8aNXkAANAm4.jpg:large[/img] -
where can i get ula's from?i want a nebula ula from retroleum but they have sold out. i also googled it and had a look on ebay and i cant even find any normal ula's either.
i want a nebula ula from retroleum but they have sold out. i also googled it and had a look on ebay and i cant even find any normal ula's either. -
Spectrum 48K / composite mod / LCD TV: voltages out of the ULAHello Spectrum World I have juste bought again my first computer on ebay... a Speccy 48k issue 2 with a 5C112E-2 ULA. Just had to replace TR4 and …
... 2 with a 5C112E-2 ULA. Just had to replace ... maybe a problem in the ULA could cause b) or ... great book "The ZX Spectrum ULA: How to design a ... br /> Patrick
My ULA Y output:
[img]https ... ://i.postimg.cc/HxDsHvPC/ULA-Y.jpg[/img]
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Another Spectrum is brought back to life.Hi Spec-chums. I have been having bit of busy afternoon with repairs today. I've brought back to life a Panasonic Super-VHS recorder, and more intere…
... with the seller keeping the ULA ic. Pictures in the auction ... . The seller had fitted a replacement switch-mode Traco regulator, so ... did was to fit a ULA and get the board to ... IC, fitted a socket and replacement IC. Here's my soldering ... -
48k issue 4B display problem etchi,, i have a zx spectrum 48k issue 4B with a display issue it has wavy lines in both the border and paper,some colours seem worse than others ie red…
... video encoder,new lower ram module.different ULA,crystals,full re cap ... -
doubt about swapping ULA in an issue 2 boardIs it possible to swap a 6C001E-6 ULA type with a 5C112E ? I have this issue 2 board that is not booting, it shows me a black border with horizont…
... to swap a 6C001E-6 ULA type with a 5C112E ?
ULA.
Diagnostic ROM doesn't ... would like to swap the ULA and Z80 to narrow the ... like to try swapping the ULA as I have another working ... -
The ZX Spectrum ULA bookFound a copy of the ZX Spectrum ULA book by Chris Smith that I've never read. This is a new book that was given to me years ago and I've never got ro…
... copy of the ZX Spectrum ULA book by Chris Smith that ... -
zx spectrum ULA upgradei have a issue 2 zx spectrum 16k which i upgraded to 48k .. i believe the ULA is faulty (ULA5C112E-2) .. seems intermittent i know a later one can be…
i have a issue 2 zx spectrum 16k which i upgraded to 48k .. i believe the ULA is faulty (ULA5C112E-2) .. seems intermittent i know a later one can be used but should some resistor values be changed to match it ?
thanks mark .. -
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…
... CPU's & ULA's. fitted lower ram module ... still no boot ... -
48k ULA heat sink required ?ULA heat sink worthwhile mod or just internet hype ? if worthwhile is a cheap heat sink going to cut the mustard ? i wonder if anybody has done any …
ULA heat sink worthwhile mod or just internet hype ? if worthwhile is a cheap heat sink going to cut the mustard ?
i wonder if anybody has done any before & after heat tests ? -
Interface 1 ULAIs there a technical description of the functionality of the Interface 1 ULA, similar to the "The ZX Spectrum ULA" book? Specifically, what is the…
... functionality of the Interface 1 ULA, similar to the "The ZX ... Spectrum ULA" book?
Specifically, what ... the ROMEN lines of the ULA? Superficially, ROMCS feeds into the ... -
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 ... 12v generating circuit... Needs a replacement for a ZTX650... So I ... , and shows signs of previous replacement. Remove it, and replace with ... -
+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 …
... case you'll need a replacement which will probably have to ... ROM
3) Screwed up ULA that can no longer output ... -
Fake screenshots? No - now it's REAL screenshotsOk then. A few weeks ago I said I will show You the new gfx-mode of Speccy and - here it is: [url="http://republika.pl/hooy_prg/hprg.zip"]http://rep…
... TAP into RealSpectrumEmulator, and use ULA FX Hardware Multicolour to display ... is a Graphic memory expansion module for Scorpion to increase the ... has a very fine painter module included in the viewer?
Crasched Spectrum+ 128, HELP!Hi! I recantly bought a Sinclair Spectrum+ 128 on a seconhand store. It shows random colour squares spread over the screen, mostly the upper part a…
Definitely sounds like the ULA chip is blown - usually happens ... .
I have seen replacement chips available for sale and ...replacement ear and mic sockets on a spectrum+...ok, i bought a spectrum recently in an 'as seen' condition, so i suppose i have no right to complain because it isn't working... in any case, i was…
... or ebay) and solder on replacement.
Not sure if Sintech ... , membranes, Modulator very easily.
ULA may be more difficult tho ...ZX in FPGA...Hmm..seems nobody is interested in a replacement PCB with FPGA...well..heading towards next FPGA projects then...C64 and others (o; [ This Messag…
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FPGA: EP1C6T144C8 (Z80, ULA, Joystick)
Flash: 512KByte 29LV400TC ... dimension: 213*130mm, drop-in replacement for ZX 48K PCB.ZX in FPGA...Hmm..seems nobody is interested in a replacement PCB with FPGA...well..heading towards next FPGA projects then...C64 and others (o; [ This Messag…
... /> [quote]
FPGA: EP1C6T144C8 (Z80, ULA, Joystick)
Flash: 512KByte 29LV400TC ... dimension: 213*130mm, drop-in replacement for ZX 48K PCB.
New member, dead SpeccyHallo everyone, I was directed here from a Commodore (boo, hiss) forum after pleas of aid with my newly acquired, quite dead 128k Speccy. I sincerely…
[quote]
On 2004-12-16 20:30, idrougge wrote:
I've got replacement CPU and memory, but if it's the ULA that's been blown to pieces, will a 48k one do for a replacement?
[/quote]
No.Want a Speccy Repaired?Maybe it's time to put my 'skills' to use.... Now that I've sourced some of the nastier transistors, I've fixed about 6 rubber keyed Speccys in the …
... case you'll need a replacement ULA.
Hopefully that'll ...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…
... , dasteph wrote:
The ULA on a +2a, is ( ... [I]is[/I] the ULA before replacing it... and that ... assuming you can find a replacement!
Without ... on it! If the ULA is dead I suspect you ... hope it's not your ULA!
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Atari STSaw one recently at a used scrap dealer, but didnt buy it seeing as it dosent have my particular interrest. I could probably bargain for it for only …
... had a sub-standard RF module.
If anyone in ... or get hold of a replacement I would appreciate hearing from ...256 color spectrumhi i start to make a project. a 256color spectrum like the spec256 emulator. capable to run 256 color games and the original ones from a cdrom,a flop…
... suggested essentially involves replacing the ULA with something a bit more ... already developed a pretty powerful replacement ULA so it's certainly possible ...Spectrum won't load data when warmI've got an interesting observation. I put iPodLinux onto my iPod and got TZX files playing back as the proper audio waveform. I also removed the vol…
It looks that your ULA chip starts to work unreliable ... Speccies.
Solution is replacement of ULA, or:
[url ... little modded Spectrum 48K, but ULA is on place, just covered ... alu board on top of ULA.Sinclair Basic Vs PascalWith the rise of the structured programming movement (Jackson et al) was it wise to put the Basic programming language into the Spectrum. By this ti…
... supplies the RomDisq, the Minerva replacement Operating System, I2C bus based ... . I did put heatsink on ULA chip, because I want it ...
