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<1…19202122232425…34>
  • Speccy MTBFHi, Looking at the old (issue 1-2) PCBs, they do look like someone knocked them up in an etching bath/with a soldering iron in their shed but has th…

    ... power. With RAM failure usually voltage converter transistor died too.
    piters piters May 2006 Hardware
  • Speccy MTBFHi, Looking at the old (issue 1-2) PCBs, they do look like someone knocked them up in an etching bath/with a soldering iron in their shed but has th…

    Cheers for that. I'm a little surprised the 7805 wasn't more frequent as my own Speccy blew two up.....I wonder if there was some other problem like too high a voltage from the transformer...(?)
    xenomorph xenomorph May 2006 Hardware
  • How to put up a SCREEN$ - VB6 only.I'm making a little [B]Opus Discovery[/B] floppy image creator/viewer (thanks, [B]Obo[/B]!). It is made in... VB6 (sorry, don't know any "real" langu…

    ... as part of the [B]OPUS Disk Reader[/B] I'm ...
    Marcelo Marcelo May 2006 Development
  • ANN: SP1 for Z88DK (aka splib3, Sprite Pack v3.0)Well it's finally arrived, after a month of "a few days from now" release deadlines. SP1 is the lastest version of splib, a flicker-free software sp…

    ... snapshot button) that pull the voltage low on the /NMI pin ...
    Alcoholics Anonymous Alcoholics Anonymous May 2006 Development
  • +3 psu schematics and partsHi everyone. Does anyone have or knows where to get the +3 psu schematic? I'm trying to repair one but i cant find any info on the parts reference. …

    ... pass transistor of the 723 voltage regulator circuit that forms the ...
    absorbentgnome absorbentgnome June 2006 Hardware
  • 48K power supply coilHi guys, been thinking about making a small quantity of PSU coils for the original 16/48K machines. My problem is, although I can (and have, with gr…

    ... frying and make a few voltage readings and experiment until I ...
    DEATH DEATH June 2006 Hardware
  • Why so many disk systems?Why did the Speccy have so many floppy disk systems like wafadrive, tr-dos, +3disk, and many more? As far as I can see, this did nothing but create …

    ... think Andy also supported the Opus, but don't quote me ...
    DEATH DEATH June 2006 Sinclair Miscellaneous
  • Faulty 128KI digged out my Spectrum 128, and it wakes not up. I don't have experience, only with 48K. Maybe someone can give me some hint, clue. It looks like m…

    If not the ULA, it's most likely to be RAM/Z80. You's be surprised at how often the Z80 goes down.

    You can do basic voltage checks to see if all the voltages are present, that may be a start....
    DEATH DEATH June 2006 Hardware
  • How to put up a SCREEN$ - VB6 only.I'm making a little [B]Opus Discovery[/B] floppy image creator/viewer (thanks, [B]Obo[/B]!). It is made in... VB6 (sorry, don't know any "real" langu…

    ... to display screens saved in Opus Discovery disks.

    Please ...
    Marcelo Marcelo June 2006 Development
  • Why so many disk systems?Why did the Speccy have so many floppy disk systems like wafadrive, tr-dos, +3disk, and many more? As far as I can see, this did nothing but create …

    ... /> Some people swore by the Opus Discovery. So did I when ...
    Dave Fountain Dave Fountain June 2006 Sinclair Miscellaneous
  • Noisy display faultI've been given an Issue 3 48K Speccy PCB which is in good working order except the main display area has slight changes of shade loosely following a…

    ... problem in the PSU. Take voltage measures along the [B]12VA ...
    Marcelo Marcelo June 2006 Hardware
  • SpectaculatorDoes anyone know when the next release of Spectaculator will be?

    ... includes +D support but not Opus Discovery.

    As with ...
    Andrew Barker Andrew Barker June 2006 Emulators
  • Expanded Profiles - Brief BiosExpanding on the post about Crimewatch style profiles, why not make a biography style profile. And I'll be the first... NAME: Patrick J.K. Furlong A…

    ... ), 2*CZSpectrum 48 (argentinian clones), OPUS Discovery, Currah uSpeech, IF1 w ...
    Marcelo Marcelo June 2006 Sinclair Miscellaneous
  • Lesser used BASIC commandsAre there any interesting articles or books that explore some of the lesser used BASIC commands/functions e.g. DEF FN, IN, OUT etc? The Spectrum BAS…

    ... original use. However, with the Opus Discovery, it was a useful ...
    emleymoor emleymoor July 2006 Sinclair Basic
  • Disk file transfer utilities ?Are there some PC programs for transferring Speccy software between common emulator formats like TAP to disks or disk images? I mean here about +3 f…

    ... to read real physical [B]OPUS Discovery[/B] floppies and write ... does that with standard formatted OPUS disks, but also allows the ...
    Marcelo Marcelo July 2006 Sinclair Miscellaneous
  • Disk file transfer utilities ?Are there some PC programs for transferring Speccy software between common emulator formats like TAP to disks or disk images? I mean here about +3 f…

    ... /> I don't know is Opus supports snapshots, but I can ...
    piters piters July 2006 Sinclair Miscellaneous
  • Noisy 2A displaymy 2A gives a fairly good display until it has to generate sound or other cpu work, which interferes with the signal, giving some "cloudy" effects …

    ... DC line or if the voltage drops whilst playing a sound ... effect of modulating the supply voltage, so audio will be seen ...
    DEATH DEATH July 2006 Hardware
  • Noisy 2A displaymy 2A gives a fairly good display until it has to generate sound or other cpu work, which interferes with the signal, giving some "cloudy" effects …

    ... regarding which wire carries which voltage, and all you need do ...
    DEATH DEATH July 2006 Hardware
  • Power issues for multiple Speccies - questionWould like your opinions on some power issues I will be coming across soon! I am building up a collection of working Spectrums to form a music Midi …

    ... because of the slightly higher voltage, you'll need to keep ...
    DEATH DEATH July 2006 Hardware
  • PC CPU heatsink and fans to cool down Speccy!Ah ha! I've just had an idea! taking apart some scrap PCs I decided to take the CPU heatsink and fan units off and see if I can attach them to the …

    ... inside it is the 7805 voltage regulator; so I think that ... by lowering the voltage from 9V to 7,2V ...
    Grecu_hc85 Grecu_hc85 July 2006 Hardware
  • PC CPU heatsink and fans to cool down Speccy!Ah ha! I've just had an idea! taking apart some scrap PCs I decided to take the CPU heatsink and fan units off and see if I can attach them to the …

    ... 's true that lowering the voltage will save some of the ...
    DEATH DEATH July 2006 Hardware
  • for a stupid: what?s NMI?erhm, yes, I?m not familiar with it... :rolleyes: I know the function of a hardware ?snapshot? button from Didaktik M/Kompakt, but I?m not familiar…

    ... ]interrupt[/B] chores when the voltage drops from +5 to 0 ...
    Marcelo Marcelo August 2006 Hardware
  • The New SPIN releases ThreadOk, as I'm now working on SPIN again full-time, and as a very wise man once said, "Release Early, Release Often"[1]... I'm going to release new SPIN…

    ... ).
    Would you consider adding Opus Discovery support (.OPD) ?
    Spectaculator ...
    Andrew Barker Andrew Barker August 2006 Emulators
  • 9-pin joystick cables.Does anyone know where I could get some 9-wire cables with an Atari-style 9-pin plug on the end? I'm planning to do some joystick repairs / experime…

    ... that there was very little voltage going through the DISCiPLE ports ...
    Jmk Jmk September 2006 Wanted
  • Help with a pc speaker problemI recently was given a 19" Hansol Mazellan 900p CRT Monitor which replaced my old Packard Bell smaller monitor. The speakers i have are fairly ancien…

    You could try getting your self a Power supply from somewhere like Maplins. All the relevent info you'll need should be on the back of one of the speakers i.e. voltage and current(amps)

    Should set you back about a fiver
    BruceNorton BruceNorton September 2006 Chit chat
  • Using a +3 power supply to power a CPC.Hi there, I'm going to try and power a CPC6128 using a +3 power supply. The +3 supplies 12V DC 0.2A and 5V DC 2A, the CPC6128 needs 12V DC 0.4A and …

    ... called "ground" or "common". All voltage readings are made with reference ... forget there will be a voltage drop of about 0.7V ...
    DEATH DEATH September 2006 Hardware
  • Using a +3 power supply to power a CPC.Hi there, I'm going to try and power a CPC6128 using a +3 power supply. The +3 supplies 12V DC 0.2A and 5V DC 2A, the CPC6128 needs 12V DC 0.4A and …

    ... forget there will be a voltage drop of about 0.7V ... going to lead to a voltage drop then I will abandon ...
    Jmk Jmk September 2006 Hardware
  • Using a +3 power supply to power a CPC.Hi there, I'm going to try and power a CPC6128 using a +3 power supply. The +3 supplies 12V DC 0.2A and 5V DC 2A, the CPC6128 needs 12V DC 0.4A and …

    ... only, regardless of the actual voltage - assuming it's a high ... enough voltage to allow the diode to ...
    DEATH DEATH September 2006 Hardware
  • Introduce yourself[SIZE=3][FONT=Comic Sans MS]This is the thread to stop by & introduce yourself.[/FONT][/SIZE]

    ... membrane (obviously) and make some voltage regulator and skip the RF ...
    lovespider lovespider September 2006 Chit chat
  • 128k dead, no TV signalI got 128k spectrum (heatsink model) from a friend of mine. He told me that speccy is dead, and he doesn't know what's wrong with it. When I plugged…

    ... for example. Remember that all voltage readings you take should be ... you should have since the voltage regulator is obviously warming up ...
    DEATH DEATH September 2006 Hardware
<1…19202122232425…34>

Latest Posts

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  • 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.....
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