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  • Faulty +2A questionDug out some Spectrums earlier and amongst them I had +2A's which i've never even bothered to power up. First one powered up no probs, clean picture …

    ... would that screen indicate? Memory fault?
    Glenn Glenn October 2010 Hardware
  • XBox 1 hacker to testify in courtThis might be of some interest to some of us: "[COLOR=Blue]Andrew "Bunnie" Huang, the designer of the Chumby ( [COLOR=Red][URL]http://www.chumby.…

    ... hurt Microsoft, then who's fault is that? I never asked ...
    ewgf ewgf October 2010 Chit chat
  • Broken keyboard due to broken ULARecalling csmith's thread about dead ULAs, a thread appeared in the Zonadepruebas (Spanish) forum regarding... a dead ULA, but only a partially dead …

    ... reads and supplies to the CPU.

    I thought that ... by the Z80 and the CPU can't read or write ... for D0-D4 of the CPU's data bus. With the ...
    Winston Winston October 2010 Hardware
  • Whole upper memory lostHi! I own a rubber key Spectrum with 48K RAM. Suddenly it lost it's whole upper memory. All diagnostic programs says that it's 16K model with workin…

    ... machine is 48K model with fault ram. After changing faulty upper ...
    lillaolle64 lillaolle64 October 2010 Hardware
  • VIC 20 on the SpectrumThe original "20 Commodes" program released for CSSCGC 2008 has been improved and now has its own entry in WoS. The improved code has been sitting on…

    ... in screen update and general CPU speed. Don't expect miracles ...
    Jimmy Jimmy October 2010 Announcements
  • I hit an electronic jackpot!!!Hi everyone, My computer project can exceed faster than ever!! My school has no electronic or computer teachers so they have thousands of chips and …

    ... /> I even got two z80 CPU's that i would LOVE ...
    Robin Robin November 2010 Chit chat
  • Playing SID music on AY??Hello. Some time ago, with occasion of another thread, I was asking about possibility of making a very certain thing - a SID emulator for Spectrum …

    ... on Atari Xl/XE (with CPU of 1,72Mhz speed).
    CPU and POKEY (a chip not ...
    Mister Beep Mister Beep November 2010 Development
  • R3PLAY report and photosWell, R3PLAY is now over ... and what a great event it was. I have to thank all the organizers, their hard work really paid off and it was a huge suc…

    ... inside of RetroClinic's dual CPU BBC Masters:

    [img ...
    Winston Winston November 2010 Sinclair Miscellaneous
  • PoC for a ULA video generator described using Handel-C and a Basys FPGA board.Recently, I've taken a course about hardware design for video processing using FPGA's. The HDL used in the course was Handel-C, a C look alike langua…

    ... Spectrum using Spectaculator, configured with CPU Speed=50Mhz, is executed. The ...
    mcleod_ideafix mcleod_ideafix November 2010 Hardware
  • Microdrive faultHi, After a chat with "Winston" at the R3PLAY show I have been able to fix my 48k spectrum faulty M1 signal. My problem with the microdrive is int…

    Hi,

    After a chat with "Winston" at the R3PLAY show I have been able to fix my 48k spectrum faulty M1 signal.

    My problem with the microdrive is intermittent, when it wants it works just fine and will format and "cat 1" , then next ...
    mick66 mick66 November 2010 Hardware
  • Happy Birthday World Of Spectrum....Have a good one! :) (Yes, yes, WOS...I realise a few people have been ruining your party with silly arguments and things...these things happen every…

    ... handle! It's not your fault...You just have to ignore ...
    deadpan666 deadpan666 November 2010 Chit chat
  • I need a connection-loggerI have an old router which may have an intermittent fault. Do you know any (free) progs that can do continous testing and logging to check if, and w…

    I have an old router which may have an intermittent fault.

    Do you know any (free) progs that can do continous testing and logging to check if, and when, it may loses connection ?
    Pilsener Pilsener December 2010 Chit chat
  • Recent talk of developing new SpectrumsHi all, I can see from a few threads on here that some Wossers like Vasil and Aien 8 are interested in developing more powerful Spectrums or improvi…

    ... of these are using Z80 CPU's running at 20-25MHz ... to assume that a 20MHz CPU is the fastest that a ... if there are there any CPU upgrades for the Spectrum like ...
    Rebelstar Rebelstar December 2010 Hardware
  • Two-resistor fix for +3 sound distortionOver at Zonadepruebas, mcleod_ideafix has done a circuit analysis of our favorite distorted sound output: the issue 1 +3 AY chip sound output, and fr…

    ... +3 "original" has a design fault in the amplifier circuitry for ...
    Winston Winston December 2010 Hardware
  • Faulty Interface 1I bought a 'tested' Interface 1 on ebay the other day. Aside from the previous owner 'cleaning' the contacts with WD40!!! (bad, bad, bad eeurrgh :rol…

    ... something to do with a fault in paging the IF1 ROM ...
    toadstool toadstool December 2010 Hardware
  • Facebook ProblemsI cant seem to write anything new on my Facebook wall only comment to existing things. Its this another flawed redesign by the Facebook team or do I …

    I cant seem to write anything new on my Facebook wall only comment to existing things. Its this another flawed redesign by the Facebook team or do I have a fault?
    Scottie_uk Scottie_uk December 2010 Chit chat
  • Does VLC make use of graphics cards?Since buying two HD tv's (a Samsung and an LG) around christmas i've been scratching my head bleeding how to get to watch movies in full HD. The xbox…

    ... VLC entirely rely on the CPU? I tried to search but ...
    MinerWilly MinerWilly January 2011 Chit chat
  • ZXSpin question...Hi Folks, ZXSpin has the ability to set the Z80 CPU Speed and the Emulation Speed. Not sure I understand the difference and my installation of ZXSp…

    ... ability to set the Z80 CPU Speed and the Emulation Speed ...
    Paddy Coleman Paddy Coleman January 2011 Emulators
  • Hi againBeen a while since i was last here :P How is everyone else? What have you been up to? I have expanded my collection to: Commodore 64 Electron BBC mi…

    ... and completly retaught myself in CPU's and stuff, desiging a ...
    Robin Robin January 2011 Chit chat
  • Speccy 128 Shadow screen.How much is the shadow screen used in 128k commercial software? I ask because I am looking at putting 128k of memory in the 48k setup I have been bu…

    ... if the ULA or the CPU is reading the lower memory ... easy to determine when the CPU is *trying* to access it ...
    spodula spodula January 2011 Hardware
  • It's enough to make you cry.....I have just had the very sad task of pouring 50 pint bottles of cider down the sink. Due to a slight technical hitch (my fault entirely, which makes…

    ... a slight technical hitch (my fault entirely, which makes it worse ...
    ADJB ADJB January 2011 Chit chat
  • Graphics card questionI'm currently running an Nvidia Geforce 8600 GT card in my PC. I've been playing GTA IV over the last day or two and every time when i've finished pl…

    ... it's working fine). My CPU and hard drive are at ...
    zx1 zx1 January 2011 Chit chat
  • PS3 now fully cracked and open?About a month back, a hacking group claimed that they'd discovered the PS3's 'key' algorithms, meaning that they can 'sign' any code. What this means…

    ... case, with a PC's CPU, memory, graphics card, etc), people ...
    ewgf ewgf January 2011 Chit chat
  • What constitutes a rare spectrum game?Ive just finished re-typing in a games list after my hard drive had a fault. I have a number of titles, but what is a rare title? Pre 84? Is ther…

    Ive just finished re-typing in a games list after my hard drive had a fault. I have a number of titles, but what is a rare title? Pre 84? Is there a list anywhere?

    Thanks in advance
    Paul_esx30 Paul_esx30 February 2011 Games
  • Fao dmboozefreekIf you've been following the news recently, you know that even Mr. DMBooze Freek's horoscope says he's cocky. However, you might not know that DMBooz…

    ... now, and I don't fault you for that, but to ...
    SkyCat SkyCat February 2011 Chit chat
  • 2 48K speccys dead..Hey guys! I've got two of our rubbery friends with me that need some help. They've been like this for some time, but I would like to try and fix th…

    ... /> The first one was my fault as I plugged something onto ... it because I suspect the fault is an easier one to ...
    Diogo Diogo February 2011 Hardware
  • Newbie question about my unwell Spectrum...Hi - I have had a couple of dud 48K Issue 3 Spectrums in the loft for 20 years or more. One would initialise sometimes but could not be guaranteed t…

    ... from WOS I traced the fault to a missing -5V rail ... this could be a RAM fault because IC6 and IC11 run ...
    weathereye weathereye February 2011 Hardware
  • FS: Another 48k rubberFor the first time ever Ive managed to get a working 48k out of a dead memory situation, basically traced the fault out of the board, replacing chips…

    ... memory situation, basically traced the fault out of the board, replacing ...
    Macc Macc February 2011 Sales
  • Z80 disassembler C/C++ source codeHello, I just thought I might share the [URL="http://zxds.raxoft.cz/docs/z80d.cpp"]source code[/URL] of the Z80 disassembler I have written for [URL…

    ... of understanding how the Z80 CPU breaks the opcode sequences into ...
    Patrik Rak Patrik Rak March 2011 Development
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Latest Posts

  • I am currently watching.....
    Paradigm Shifter on 12:49AM
  • New video about S-video modification on Issue two 48K Spectrum.
    Renegade on April 21
  • Fixed Speccy Software. And which games remained unfixed?
    John Elliott on April 21
  • Happy 40th Birthday to the Amstrad CPC464!
    rich_chandler on April 21
  • Another Birthday! The Game Boy Is 35!
    mel the bell on April 21
  • European Software Titles with an English version
    harriusherbartio on April 21
  • Elusive Strategy Games done by the Smaller or less Prolific Software Houses.
    harriusherbartio on April 21
  • 1992 Spectrum Software
    harriusherbartio on April 21
  • +3 Disk drive motor
    AndyC on April 21
  • Celebrity deaths...
    mel the bell on April 20

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