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<1…14151617181920…34>
  • My 48K Speccy has died.Hi fellow WoSer's! Wondering if you could help me with my rubber key 48k Spectrum, which died on me this afternoon. It is one I prevoiusly fixed up j…

    ... that ought not to. The ULA will warm up normally, and ... a little just from radiated heat, but the RAM should not ...
    Winston Winston November 2012 Hardware
  • Games with Music BugsI know there is already a thread about games with bugs (and indeed its a awesome thread), but I thought maybe it would be nice to open another one ju…

    ... , they suffer from rain/snow/ULA bug/whatever you want to ... at all without hacking. Cisco Heat was supposed to have a ...
    Jmk Jmk May 2013 Games
  • Issue 2 crashes after about 30 minsHi Guys, I have an Issue 2 zx spectrum that seems to get graphic corruption after about half hour of playing, then finally falls over and crashes. …

    ... is the source of the heat. The only way to tell ... than later ones. The 5C ULA is less efficient and the ...
    Zorn Zorn July 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…

    ... of the driver inside the ULA for the clock output pin ... /> What are the specs for ULA output pins, as in the ... "source" drive current, logic low sink current, fan out for LS ... rate.

    If the sink current is high compared to ...
    1024MAK 1024MAK 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…

    ... of the driver inside the ULA for the clock output pin ... /> What are the specs for ULA output pins, as in the ... "source" drive current, logic low sink current, fan out for LS ... rate.

    If the sink current is high compared to ...
    bverstee bverstee September 2013 Hardware
  • First time capacitor replacementHi, I have an Issue 2 board, that i wish to start with recapping as advised on here, as they look to be all original. (Same with V3 board, but going…

    Yep, I've got one fitted to my rubber key 4A, only thing generating heat now is the ULA. Highly recommended :)
    balford balford October 2013 Hardware
  • First time capacitor replacementHi, I have an Issue 2 board, that i wish to start with recapping as advised on here, as they look to be all original. (Same with V3 board, but going…

    [QUOTE=balford;727410]Yep, I've got one fitted to my rubber key 4A, only thing generating heat now is the ULA. Highly recommended :)[/QUOTE]

    When McLeod_IdeaFix has finished the ULAplus you can ditch the old ULA too. :)
    chev chev October 2013 Hardware
  • Nasty 'Gotcha' for multicolour timingI thought I would be better developing my multicolour routine on the 48K first, being the slowest, so it would then be sure to work on the 128K varia…

    ... well understood now: As the ULA heats up it drifts from ... probably need to apply heat directly to a ULA to find out ... willing to risk destroying a ULA for that particular test. Where ...
    chev chev October 2013 Development
  • 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 …

    ... . Compare the temperature of your ULA without this line connected with ... additional effect on heating the ULA.
    The composite signal may ... maximum power dissipation inside the ULA caused by this shortage would ... of 92 mW will not heat the ULA that much I am ...
    ingo ingo October 2013 Hardware
  • Spectrum CP/MHello.. Just out of curiosity, has anyone actually used +3 CP/M for any practical purpose? I remember booting it up a couple of times years ago, jus…

    ... cost over devices like a ULA.

    If ... you work at the ULA/FPGA/CPLD/whatever level, ... right, it will generate heat and you can draw isothermal ... when using something like a ULA.


    [ ... / pin count order for a ULA (eg).

    [ ...
    Alcoholics Anonymous Alcoholics Anonymous November 2013 Sinclair Miscellaneous
  • Seeing the code/In emulatorHello, Here is my Noob question. Is it possible to see the code for these games in an emulator? To be able to study the code? I am using the Sp…

    ... ] personally. There are exceptions, like ULA Plus and Pentagon support which ... />
    Having said that, a heat map of activity sounds intriguing... ;)
    Arjun Arjun December 2013 Sinclair Basic
  • 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…

    ... I saw some heatsinks for ULA's, 3 for +/- 8 ... .

    The ULA does run hot, but ULA failure is not ... type (it is not a ULA) and does not need any ... heatsinks, the best conductor of heat is copper. The next best ... is at getting rid of heat in to the air.
    1024MAK 1024MAK 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…

    ... I saw some heatsinks for ULA's, 3 for +/- 8 dollar ... the ULA straight to the board also helps a lot with heat ...
    Dan Antohi Dan Antohi March 2014 Hardware
  • Totally random idea for the hardware nuts to exploreWhen it comes to multi-player games, how hard would it be to generate a second display from a single Speccy, instead of trying to link up machines, s…

    ... just leaving the video circuits, ULA and the "lower" DRAM) ... is accessed by the ULA is contended, if this ... piggy back the second ULA on the original but ... can you drive 2 ULA's from one crystal ...
    Also 2 piggybacked ULA's would generate a lot of heat. :-)
    Basher Basher April 2014 Hardware
  • Spectrum 128 malfunctioning with DIVMMCI recently got myself a spectrum 128 (toastrack) and a DIVMMC card so I could load games from it. It all works fine until it has warmed up and then t…

    ... think it's definitely a heat issue - but the only components ... the voltage regulator and the ULA.
    Neosodium Neosodium May 2014 Hardware
  • Spectrum 128 malfunctioning with DIVMMCI recently got myself a spectrum 128 (toastrack) and a DIVMMC card so I could load games from it. It all works fine until it has warmed up and then t…

    ... think it's definitely a heat issue - but the only components ... the voltage regulator and the ULA.[/QUOTE]

    Might be ... clean them.

    The heat might become more of a ...
    Jimmy Falcon Jimmy Falcon May 2014 Hardware
  • Spectrum 128 malfunctioning with DIVMMCI recently got myself a spectrum 128 (toastrack) and a DIVMMC card so I could load games from it. It all works fine until it has warmed up and then t…

    ... normal amount of heat normally dissipated by the ULA.

    [I ...
    1024MAK 1024MAK June 2014 Hardware
  • Spectrum 128 malfunctioning with DIVMMCI recently got myself a spectrum 128 (toastrack) and a DIVMMC card so I could load games from it. It all works fine until it has warmed up and then t…

    ... normal amount of heat normally dissipated by the ULA.

    [I ... the CSYNC signal of the ULA, heating the ULA up.
    bverstee bverstee June 2014 Hardware
  • Spectrum 128 malfunctioning with DIVMMCI recently got myself a spectrum 128 (toastrack) and a DIVMMC card so I could load games from it. It all works fine until it has warmed up and then t…

    ... and fitted one on the ULA. It was a little bit ... all means as the +2 ULA worked fine back in it ... heatsink so perhaps the heat of the ULA is being conducted by ... on my +48 and the ula is fine in my machine ...
    Neosodium Neosodium June 2014 Hardware
  • Spectrum 128 malfunctioning with DIVMMCI recently got myself a spectrum 128 (toastrack) and a DIVMMC card so I could load games from it. It all works fine until it has warmed up and then t…

    ... All semiconductors are affected by heat. Heat changes the characteristics slightly. So ... voltage regulator followed by the ULA. Other chips such as ... use a heatsink on the ULA. Most of the chip ... another component) has "become" heat sensitive. The only cure then ...
    1024MAK 1024MAK June 2014 Hardware
  • Introduce yourself[SIZE=3][FONT=Comic Sans MS]This is the thread to stop by & introduce yourself.[/FONT][/SIZE]

    ... 't create any of the heat associated with the old regulator ... few cooling fins to the ULA and maybe replacing the Z80A ... power saving and reduction in heat?". ;)
    Wiffleplop Wiffleplop June 2014 Chit chat
  • Fixing my old ZX Spectrum 48K issue 4AHi Guys, I trying to fix my old Spectrum 48K. Looks like my dad used a wrong power supply as the ULA had a bit missing and so did the 7805. So I rep…

    ... read about:
    > Some ULA chips in Interface 1's ... is no sign of any heat damage, the Interface 1 is ...
    1024MAK 1024MAK July 2014 Hardware
  • ZX81 + 16k RAM Pack + Original PSU... What's it worth?Hey guys Got my ZX81 this morning its in excellent condition.. [IMG]http://s30.postimg.org/iwetzxku9/IMG_20140818_142443.jpg[/IMG] However, my T…

    ... were crispy with obvious black heat marks on the board. Replaced ... easier than attaching the the ULA. I've left the ZX8 ... back porch).

    The ULA is 2C184E and all chips ...
    rune rune August 2014 Sinclair Miscellaneous
  • Ben Heck modifies a Zee X Spectrum.Gahh, one of the differences between Americans and Europeans right there in the title. Anyway, we know better ;) ...and this isn't about that anyway.…

    ... a Spectrum? Is it the ULA that's the real soul ... internal PCB, or feel the heat coming from the inside.
    ULA tests, plug in devices, etc ...
    mcleod_ideafix mcleod_ideafix August 2014 Hardware
  • Ben Heck modifies a Zee X Spectrum.Gahh, one of the differences between Americans and Europeans right there in the title. Anyway, we know better ;) ...and this isn't about that anyway.…

    ... internal PCB, or feel the heat coming from the inside.
    ULA tests, plug in devices, etc ...
    p13z p13z August 2014 Hardware
  • Weird 1982 Copyright message after cap change.Hello All, As mentioned before I had a busted Issue 6 48K Spectrum+, one of the capacitors had leaked, and trashed the keyboard membrane ribbon. Us…

    ... I switch the CPU and ULA from another 48k+ what's ... 'm wondering if it's heat issue? e.g. it's ...
    Korinel Korinel October 2014 Hardware
  • Spectrum preservation/clean up questions.I&#8217;m sorting out my 5 Spectrums trying to make them look a bit better, and to package them up how they should be, and to get them to be reliable…

    ... RGB blanking signal make the ULA run substantially hotter, adding ... to stress on the ULA.
    15) Yes, me. ... desolder the ULA socket and solder the ULA directly to ... heatsink from Maplin). The ULA wasn't designed to need ... should use, causing more heat...
    Spirantho Spirantho November 2014 Hardware
  • Spectrum preservation/clean up questions.I&#8217;m sorting out my 5 Spectrums trying to make them look a bit better, and to package them up how they should be, and to get them to be reliable…

    ... to desolder the ULA socket and solder the ULA directly to the ... the heatsink from Maplin). The ULA wasn't designed to need ... he should use, causing more heat...[/QUOTE]

    What type ...
    Renegade Renegade November 2014 Hardware
  • 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 …

    Err, more energy in, but less heat out :confused:

    Does this ULA come in a standard plastic package, or is it a ceramic package?

    [B][I]Mark[/I][/B]
    1024MAK 1024MAK December 2014 Hardware
  • 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 …

    ... wonder if they have different heat characteristics and/or power consumptions ... TR2 replaced and a Plessey ULA with a heatsink. That sounds ... :) I've popped a Plessey ULA into my Issue 4A board ...
    balford balford December 2014 Hardware
<1…14151617181920…34>

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