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Search Again :: Adv Search 1000 results in 0.018s
<1…16171819202122…34>
  • Timex 1000 PAL conversionHi, a friend of mine sent me a Timex 1000 from the US. I was prepared for the NTSC/PAL issues so no surprise came to me when i got a shadowy dark scr…

    ... programming special states in ULA. So I would remove ... BC547) and the video input of the TV set.
    ULA.
    D9', R31' ... (BC547) and the video input of the TV set would ... tvs even with the problematic ULA? (because i get ...
    gtsamour gtsamour January 2009 Hardware
  • Timex 1000 PAL conversionHi, a friend of mine sent me a Timex 1000 from the US. I was prepared for the NTSC/PAL issues so no surprise came to me when i got a shadowy dark scr…

    ... (BC547) and the video input of the TV set would ... tvs even with the problematic ULA? (because i get normal ... the output impedance to the input impedance of TV set ... could help if inside the ULA is an open collector ... would let the (rare) ULA as it is and use ...
    ingo ingo January 2009 Hardware
  • 128k heat sink - ULA problems and a hintHello, I had two ZX Spectrum 128k with a similar behaviour. One item worked only a short time after switching on and then there were increasing RAM …

    ... similar capacitor job won't fix my problem?[/QUOTE]

    ULA that disfunctions after heating up ...
    gtsamour gtsamour January 2009 Hardware
  • 128k heat sink - ULA problems and a hintHello, I had two ZX Spectrum 128k with a similar behaviour. One item worked only a short time after switching on and then there were increasing RAM …

    ... sounds like a duff ULA that disfunctions after heating ... Maybe, but consider that ULA is also responsible for key ... could be just a faulty ULA "pressing keys" when ... a 7805, and the input supply is 12V, you' ... than a dodgy ULA chip. The ULA gets quite warm anyway ...
    BloodBaz BloodBaz January 2009 Hardware
  • 4116 DRAM for 48KSomeone told me I got faulty RAM in my broken 48K. They should be 150ns, right? What would be a good place to buy them from?

    ... />
    But this doesn?t fix ULA -7 timing problem. Some memories ... with this ULA.
    Do you maybe have some fast fix for ...
    zboskovi zboskovi January 2009 Hardware
  • 4116 DRAM for 48KSomeone told me I got faulty RAM in my broken 48K. They should be 150ns, right? What would be a good place to buy them from?

    ... board, and a particular version ULA. Other than that, it ... issue boards, or other version ULA's. For myself, I ... Spectrums available, most with same ULA inside.

    [ ... onto the data the ULA is reading for the ... try and find a fix that works with logic ...
    RetroTechie RetroTechie February 2009 Hardware
  • R.I.P. spectrum 48kRecently one of my 48k rubber key (issue 4) machine bit the dust the other day when I tried to power it on. When powering it on, it gave a weird 'bee…

    ... try and also a spare ULA. But I want to make ... , Z80, ROM, and a spare ULA. Just don't want to ... really appreciate all of your input here, and sorry for the ...
    thomas3120 thomas3120 February 2009 Hardware
  • New Guy Wants Speccy - SWAP !Hi, I`m new here so here is a little background info ! I always had a C64 when I was in my teens in the 80`s, my friends had Spectrums, so it was alw…

    ... nice to be able to fix it myself also, I`ve ... ZTX transistors, Z80, ROM chip, ULA..... Pretty much anything could have ...
    DEATH DEATH February 2009 Wanted
  • DivIDE on Spectrum +3Hi all, Is it possible to use the DivIDE on the Spectrum +3 in 128K mode? I have the 'A' jumper set on the board, but my +3 resets into 48K mode wit…

    ... ,xxxxxxx1 can destroy DIVIDE or ULA chip on your ZX+2A ... />
    Exist two ways for fix this problem:
    - connect D0 ...
    velesoft velesoft February 2009 Hardware
  • Issue 2 Spectrum overheating keyboard membraneI think I have an issue 2 ZX Spectrum. I don't want to take it apart again as I had problems replacing the keyboard membrane. With Interface 1 conne…

    ... ] type. Basically the difference between input and output voltage (x current ... -drop version. Then you can input eg. 6V DC (regulated!), and ... of cooling plate on the ULA. That chip gets quite hot ...
    RetroTechie RetroTechie February 2009 Hardware
  • Help with faulty +2ahi everyone I'm Nuno from Portugal I think I made poopoo with a 128k +2a motherboard I had spare for testing purposes This motherboard has always …

    ... programs ... so I assume the ULA must be ok
    when ... the help
    if i fix the problem I'll post ...
    Nuno2009 Nuno2009 March 2009 Hardware
  • ULA gets so hot, it is cracked open!Hi everyone. I have bought a rubber-keyed 48K and the seller said he was selling it as "for spares/repair." Sure enough, it turns out it doesn't work…

    ... to do that to the ULA that was inside the 48 ... wrong that it affected the ULA in a drastic and tragic ... won't even bother to fix this 48 because it seems ...
    memrah memrah March 2009 Hardware
  • Real 60Hz NTSC 48K ZX SpectrumNot a 3rd party mod. The joystick mod was added by the user, but the board and the computer is exactly what was sold in Chile, South America. We migh…

    ... this can be true. The ULA generates the interrupts of which ... also now know that the ULA used in these machines are ... an NTSC Speccy involves: correct ULA, correct master clock (14.11MHz ... NTSC TV by using composite input (not RF)?
    Will it ...
    superfo superfo April 2009 Hardware
  • Real 60Hz NTSC 48K ZX SpectrumNot a 3rd party mod. The joystick mod was added by the user, but the board and the computer is exactly what was sold in Chile, South America. We migh…

    ... in your PC with composite input, as the TV cards tend ... color.
    Does it mean ULA does not do any thing ... /NTSC, does it mean their ULA does not do any thing ...
    superfo superfo April 2009 Hardware
  • Spectaculator 8Do you have any info about it? Is it prepared a new version of this emulator at all? If so, are there known any new features?

    ... like to see:

    * Fix for Microdrive when you choose ... like this you can only input lower case names. I've ...
    Andrew Barker Andrew Barker April 2009 Emulators
  • Pera Putnik's RGB interfaceI am sure some (if not many) of you will have seen Pera Putnik's RGB interface [URL="http://members.tripod.com/%7Epiters/uvyrgb.htm"]circuit diagram…

    ... so) on adapter's input points (bases of transistors). ... 't have TV with RGB input currently .
    [/QUOTE]
    ULA. The signals are formed ... DC current loading the ULA and will also cause ... the lines from the ULA) but is not yet ...
    ingo ingo April 2009 Hardware
  • Image to ZX Spec 1.0 ReleasedImage to ZX Spec 1.0 is now available. Image to ZX Spec allows you to: - Convert JPEGS or GIFs to a ZX Spectrum slideshow (tap file). - Convert JPE…

    ... QUOTE=zxbruno;353541]
    -The input folder is selected by clicking ... =zxbruno;353541]
    -The input/output folder is great for ... - although there is a fix to use whatever you like ... this and I usually fix them quickly - if ... link and I'll fix the bug. I should ...
    brownb2 brownb2 May 2009 Announcements
  • Which is the most technically accurate Spectrum Emulator?Ok, which is the most technically accurate Spectrum Emulator? Please don't just vote but give reasons why.

    ... me, and I decided that ULA snow and artifacts and MEMPTR ... (I suspect that Jon will fix those in due course).
    ULA snow (ZXSpin currently only does ...
    Dunny Dunny May 2009 Emulators
  • Reading from the keyboard using the IN commandHi all, I'm working my way through Sixty Programs for the Sinclair ZX Spectrum, and I'm running into difficulties with some of the keyboard reading r…

    ... :

    [QUOTE]The keyboard input port also reads in a ... bit now floats until the ULA has warmed up. [B]The ... to check the whole keyboard input byte, but lazy programmers did ...
    zxbruno zxbruno June 2009 Sinclair Basic
  • New to developmentHello there my fellow forum chummies, I have recently been bitten once again to go into software development, its been a while. I have a lot of ski…

    ... \s1m0_.o
    Cannot copy input file
    Build Failed!
    fix it?

    Tommy Gun ...
    Zetr0 Zetr0 July 2009 Development
  • Two dead SpectrumsHi all, Long time since I posted on here. I'm having a bit of a clear-out, and I've re-discovered two Spectrums I had in the loft : One is an orig…

    ... least coloured blocks, since the ULA would just display whatever's ... />
    I'd offer to fix them if I was not ...
    Winston Winston August 2009 Hardware
  • lcd 7" and spectrumHave any one try to connect a spectrum 128 with a cheap tft 7" tv monitor (e bay item) via rgb cable or with vga box?

    ... composite output 'fix' and then using the a/v input that was ...
    beanz beanz August 2009 Hardware
  • Where's the border line between a Spectrum and something else?I mean: there are purists out there that consider that anything that is not a true Sinclair Spectrum, with a true Z80 and a true ULA, and at most, 48…

    ... the movement of the emulated ULA speaker output isn't just ... so there will be some input latency as the emulator has ... " as such - more a 20ms input latency, but it is how ...
    Fred Fred August 2009 Development
  • Spectrum +2 datacorderHi, my Spectrum +2 datacorder isn't working. Does anyone know if I can still load software through the tape/sound socket at the back of the machine i…

    ... />
    only the +3 accepts INPUT from the rear jack socket ... to find a way to fix/replace/adapt your datacorder
    fix
    good luck

    Nuno2009 Nuno2009 August 2009 Hardware
  • Spectrum +2 datacorderHi, my Spectrum +2 datacorder isn't working. Does anyone know if I can still load software through the tape/sound socket at the back of the machine i…

    ... read somewhere that the +2A ULA or whatever is called in ... TAPE/SOUND into the tape input
    its a risk....
    Nuno2009 Nuno2009 September 2009 Hardware
  • Spectrum +2 datacorderHi, my Spectrum +2 datacorder isn't working. Does anyone know if I can still load software through the tape/sound socket at the back of the machine i…

    ... read somewhere that the +2A ULA or whatever is called in ... TAPE/SOUND into the tape input
    its a risk....
    chev chev September 2009 Hardware
  • Spectrum +2 datacorderHi, my Spectrum +2 datacorder isn't working. Does anyone know if I can still load software through the tape/sound socket at the back of the machine i…

    ... somewhere that the +2A ULA or whatever is called ... TAPE/SOUND into the tape input
    its a ... ULA does not drive the CPU with clock signal. The input ... clock of the ULA was ok (35MHz ... impossible because no one sells ULA for +2A.

    ingo ingo September 2009 Hardware
  • Spectrum dead: 8 vertical bars in alternating colorsI have been soldering on this basterd for a long time now. All IC's now have sockets (except the LM1889). I swapped all 4116's by types that are 100%…

    ... directly on Z80's clock input pin. Not a clean 3 ... .58 MHz. since the ULA messes with it, but a ...
    RetroTechie RetroTechie September 2009 Hardware
  • Spectrum +2 datacorderHi, my Spectrum +2 datacorder isn't working. Does anyone know if I can still load software through the tape/sound socket at the back of the machine i…

    ... ULA does not drive the CPU with clock signal. The input ... clock of the ULA was ok (35MHz ... impossible because no one sells ULA for +2A.

    ULA is broken.

    ULA dodn't give clock ...
    Jose_Leandro Jose_Leandro September 2009 Hardware
  • Preliminary MontyHey All... A new 2009 production (port from Atari) of a game called "Preliminary Monty" is out. It is a VERY nice platform game - with a bit "crude…

    ... example:
    HALT ;after interrupt ula draw border and on data ... joystick interface. It's possible fix also on ZX basic with ...
    velesoft velesoft September 2009 Games
<1…16171819202122…34>

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