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  • CSW file formatHi, i can't google any reasonable description of CSW file format. Can anyone point me to right place ?

    [QUOTE=catmeows;674403]In short, im writting custom loader which ... /> Hmm, few tips:

    - SpecEmu and Zero could be used ...
    Patrik Rak Patrik Rak January 2013 Emulators
  • 48k + Spectrum Issue 4S Display IssueHi all! Brand new user here. Growing up I had a zx spectrum for a little bit, and recently I have bought a working 48k + Spectrum (Issue 4). I was…

    ... to diagnosing issues on a circuit board without a point of ... the prod to slip and short between two pins).
    Use ...
    1024MAK 1024MAK April 2013 Hardware
  • Joystick Interfaces on +2AJust found out that my DK'Tronics joystick interface doesn't want to play with my +2A (black). The Kempston port works OK, but not the Sinclair port…

    ... edge connector short of where they connect to the circuit board.
    joefish joefish April 2013 Hardware
  • another faulty zx spectrum +2 to fix!!!Hello to all, I'm new here... I have got a faulty +2 (gray) and start to try fix it... I have read the treads of xaris_sm and Pluto63 as background…

    ... , which means they are internally short-circuited.

    Therefore, you ... you have to disturb the circuit board the least. Any time ...
    Falco-F8L Falco-F8L April 2013 Hardware
  • Composite video for 48k Capacitor orientationHello, My multisystem TV is acting up and I'm unable to navigate the menu to tune in the RF signal for my speccys. However the A/V input still works.…

    ... , I was away for a short while and the thread is ... the ZX I used the circuit on is 3.5V or ...
    Johan1973 Johan1973 April 2013 Hardware
  • Trailblazer - mapped?Anyone mapped Trailblazer yet? I'd kind of like to get hold of the maps. D.

    ... in Zone C is probably short for Terrence or Teresa, as ... in map?.TAP.
    + Use SpecEmu as it will automatically loop ... the last page is always short.
    + Save each SCREEN$ GIF ...
    Battle Bunny Battle Bunny June 2013 Games
  • Cascading transistorsMiguel (mcleod_ideafix) alerted me on an aspect of a design I'm working on where I am cascading transistors, which may give problems. This is the par…

    ... conducting. Such behaviour takes unknown (short) amounts of time. (Check datasheets ... for a transistor because your circuit shows a crude but (almost ...
    roko roko June 2013 Hardware
  • Cascading transistorsMiguel (mcleod_ideafix) alerted me on an aspect of a design I'm working on where I am cascading transistors, which may give problems. This is the par…

    ... feed the reset-circuit some light, and our circuit doesn't feel ... if it is a very short period) currents flowing through their ...
    bverstee bverstee June 2013 Hardware
  • What models are repairable these days?I've followed a few threads which are trying to repair the mainboard components of the older 48K models, but it got me wondering - is it possible to …

    ... , which feeds into the same circuit as the "EAR" pin on ... the ASIC so if you short this out, or accidentally connect ...
    guesser guesser July 2013 Hardware
  • New hardware for Spectrum from ShaosI have some ideas for new ZX-peripherals and quickly designed a prototyping board for experiments: [URL=http://nedocon.com/store/speccy/][IMG]http:/…

    ... is enough to inspect for short circuits. Open circuits can't ... ). But if you designed the circuit, you can often get a ...
    Winston Winston July 2013 Hardware
  • ULAs interchangeable across issuesHi all, Now that I'm retired, I'm looking again at 8 bit computing :) I'm attempting to revive a spectrum 48K. I'm going to swap chips in/out from…

    ... ] by Chris Smith, but in short:

    ULAs are not ... mod became part of the circuit board on the issue 3 ...
    guesser guesser August 2013 Hardware
  • Barn find #4I think this is some sort of backup device. Its got "007" on the motherboard and the mice have chewed the buttons. Will do a little research later in…

    ... R2-C2 becomes a RC circuit to postpone transition from 0 ... -C2 delay makes NMI signal short

    P.P.S ... and R2-C2 makes NMI short...
    Shaos Shaos August 2013 Hardware
  • ZX spectrum 128K + 2 (Grey one :)Hi all, I'm trying to revive a dead ZX 128K +2 (the grey one). The regulator was damaged and seemed to be feeding 7.8Volts onto the pcb. Yikes ! I…

    ... the TR8 / TR9 power supply circuit, lets get an idea if ... +12V supply line has a short.

    So, keep the ...
    1024MAK 1024MAK August 2013 Hardware
  • Barn find #4I think this is some sort of backup device. Its got "007" on the motherboard and the mice have chewed the buttons. Will do a little research later in…

    ... R2-C2 becomes a RC circuit to postpone transition from 0 ... -C2 delay makes NMI signal short

    P.P.S ... and R2-C2 makes NMI short...[/QUOTE]

    [IMG]http ...
    Shaos Shaos August 2013 Hardware
  • Spectrum 48k video and keyboard issueHi all, few days ago I experimented with battery supply for my speccy (48k issue 2), and I was measuring the voltage and how much current it used. A…

    ... discharged when the short occured (a closed loop circuit), and I guess ...
    dimewos dimewos September 2013 Hardware
  • Spectrum 48k video and keyboard issueHi all, few days ago I experimented with battery supply for my speccy (48k issue 2), and I was measuring the voltage and how much current it used. A…

    ... discharged when the short occured (a closed loop circuit), and I guess ... 'll have to check the circuit diagram to be certain, but ...
    Zorn Zorn September 2013 Hardware
  • IF2 troubleMy IF2 has been happily working forever until today, no matter what Spectrum I plug it into I get coloured blocks all over the screen, did the obviou…

    ... are going to look for short circuits between tracks. This is ... replace it with an equivalent circuit , it is not really practical ...
    1024MAK 1024MAK September 2013 Hardware
  • Completely free games?Hi, I would like to know if there are any open source or completely free games for ZX Spectrum. Or at least some other free programs without any lin…

    ... of contribution from Woody (whose SpecEmu source code I have referred ... #spin who have never been short of assistance when required.
    Arjun Arjun October 2013 Games
  • One more grey +2 with video problemsI guess I need your help again to hopefully be able to do some proper troubleshooting myself one day. Here I have a grey +2, which could be a bottom…

    ... . how to check for a short on C41, how to check ... I said "Check for a short on C41", I meant you ... sure you are checking a short, or a very low resistance ... something else still on the circuit board.

    When I ...
    Falco-F8L Falco-F8L October 2013 Hardware
  • Top Gear does retro[url]http://www.topgear.com/uk/photos/retro-games-2011-08-09[/url]

    ... only supposed to use a short bit of it. They regularly ... more than a simple closed circuit.
    joefish joefish November 2013 Chit chat
  • Toasted +3Oops.. I shorted one of my +3 (being clumsy with multimeter, doh) when measuring PSU connector pins :D Any immediate guesses what exactly died on thi…

    ... the circuit in question switched off, it's still easy to short ...
    Winston Winston December 2013 Hardware
  • Toasted +3Oops.. I shorted one of my +3 (being clumsy with multimeter, doh) when measuring PSU connector pins :D Any immediate guesses what exactly died on thi…

    ... />
    1. When you accidentally short something out with multimeter probes ... is happening with the reset circuit).

    I'd put ... a hypothetical 12v to GND short from seeing anything nastier than ...
    Winston Winston December 2013 Hardware
  • Please explain how a Kempston interface circuit works.Can someone help me understand how a Kempston joystick interface works, as I want to design and build my own as an experiment. I understand switches…

    ... a supply to smooth out short term power dips caused by ... ?[/QUOTE]The high speed and short pulse widths means it will ... that has a pulse detector circuit function.

    [I][B ...
    1024MAK 1024MAK January 2014 Hardware
  • Calling people with Diagboards.....and who have toastracks or grey +2's with all socketed memory :) I'm finishing off modifications to the Diagboard firmware to expand its testing c…

    Just short comment.
    When using great ... and trace signals/states in circuit.
    Testing 128K RAM requires ...
    kpuchatek kpuchatek March 2014 Hardware
  • Help with 1-bit sampled soundHi all, I've been sent over this way from the CPC Wiki forums as you guys may be able to help me more specifically with a programming query. Firstly…

    ... has a resistor/capacitor delay circuit involved (I seem to remember ... microseconds), which is far too short for any PDM scheme. Any ... the electrical characteristics of the circuit that leads to it. Also ... surprising, looking at the circuit diagram of the ULA pin ...
    Winston Winston March 2014 Development
  • Help with 1-bit sampled soundHi all, I've been sent over this way from the CPC Wiki forums as you guys may be able to help me more specifically with a programming query. Firstly…

    ... disassembly of the rom and circuit diagrams. Go forward four years ... the sharp manual gives the circuit diagram for sound output (that ... flip-flop driving the speaker circuit which means only 50% duty ... strobe" mode with a very short delay (0 if possible) so ...
    Alcoholics Anonymous Alcoholics Anonymous March 2014 Development
  • 48k no beeper soundGot a 4S that outputs no beeper sound but does output from the mic ok, replacement speaker?

    ... don't know is the short answer there.

    The ... sheet or look at the circuit diagram - it's an npn ...
    DEATH DEATH April 2014 Hardware
  • Toastrack refurbishmentYesterday I opened a drawer in my old desk and discovered 2 complete toastrack 128s and a board only for the same. As I already have a fully working…

    ... have managed to occasionally accidentally short out a supply from a ... with the regulation, destroying the circuit fed by this power supply ...
    1024MAK 1024MAK July 2014 Hardware
  • Burned finger temp on rubber 48k heatsink normal?Ok so i opened it up because a few keys started to act up and i noticed that after burning my hand the heatsink was that hot i could actually smell t…

    ... /> To cut a long story short, there are three main types ... full wave or bridge rectifier circuit drops to a voltage level ... PSU to a voltage regulator circuit. The purpose of a voltage ... a very stable voltage reference circuit, it then uses various electronic ...
    1024MAK 1024MAK August 2014 Hardware
  • Spectrum 48k ProblemsHi all Got my 48k today but it's playing up abit... First time i turn it on it was like this: [IMG]http://s26.postimg.org/hlg9d3f3d/IMG_20140830_…

    ... in this condition for very short time periods (2 mins or ... of the internal power supply circuit I talked about earlier).
    1024MAK 1024MAK August 2014 Hardware
<1…18192021222324…34>

Latest Posts

  • European Software Titles with an English version
    harriusherbartio on 12:06PM
  • How Do You Categorize Your Speccy Software and Games?
    harriusherbartio on 11:21AM
  • Fixed Speccy Software. And which games remained unfixed?
    harriusherbartio on 11:01AM
  • I am currently watching.....
    Paradigm Shifter on 12:49AM
  • New video about S-video modification on Issue two 48K Spectrum.
    Renegade 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
  • Elusive Strategy Games done by the Smaller or less Prolific Software Houses.
    harriusherbartio on April 21
  • 1992 Spectrum Software
    harriusherbartio on April 21
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