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Search Again :: Adv Search 1000 results in 0.032s
<1…12131415161718…34>
  • Opus Discovery "the big switch on" (after 20 years)I have a few of these Opus Discovery's with different Eproms in that have not been swiched for 15-20 years or so . I am in no rush to switch any on …

    ... error"; the drives are a bit "buzzy" ; I think I will ... possible that the drives are faulty but I have got one ...
    harriusherbartio harriusherbartio September 2016 Hardware
  • Magenta border and black screenGot my hands on a issue 3 48k machine. Did the initial resistance checks and everything seemed in order buy when I switch the machine on all I get is…

    ... was the ULA that was faulty. Replaced it with another one ... let it run for a bit. Next job is re capping ...
    BruceNorton BruceNorton October 2016 Hardware
  • ZX Spectrum 48k issuesHi all! A couple of days ago I bought my first 48k Speccy off ebay (I already own a beautiful QL expanded with QubIDE interface and 640k ram). It was…

    ... more 4116 DRAM chips are faulty. In the Spectrum, all the ... DRAM chips are 1 bit wide, so often a fault ...
    1024MAK 1024MAK January 2017 Hardware
  • Spectrum USB KeyboardI know you can buy these but how do you make one . What I am thinking of be similar to the type described in Issue 1352 of Micro Mart at page 45 .The…

    ... no 1 key itself is faulty and taking it apart is ... fault appears to be a bit intermittent and could have been ...
    harriusherbartio harriusherbartio January 2017 Hardware
  • Dk'tronics and other similar "add on" Speccy keyboards . What can be done with them and when?. The underlying assumption I am making here is that people who have them will want to "hang on" to them and may also want to get them working . But …

    ... keyboard repair resources were a bit thin and there were gaps ... is to get this one faulty DK keyboard working normally for ...
    harriusherbartio harriusherbartio January 2017 Hardware
  • The ideal USB "emulation" joystick. I used to be happy using emulation with a Dual Shock 3 Playstation joystick . It works and has loads of control buttons that can be configured with…

    ... the cable is faulty and not just the bit I replaced . The ...
    harriusherbartio harriusherbartio February 2017 Hardware
  • Getting a +3 working again (keyboard & tape socket issues)So, as part of my Spectrum restoration project I will also try to tackle the problem child among my fleet, the +3. PROBLEM ONE: Ever since I firs…

    ... " rubber or even just a bit of kitchen paper towel.[/quote ... residents of Pisa twitch a bit. Might that also be an ... - I thought if it was faulty it might be a case ...
    The Mighty Dopethrone The Mighty Dopethrone February 2017 Hardware
  • Dk'tronics and other similar "add on" Speccy keyboards . What can be done with them and when?. The underlying assumption I am making here is that people who have them will want to "hang on" to them and may also want to get them working . But …

    ... .worldofspectrum.org/forums/discussion/38946/faulty-dk-tronics-keyboard#latest"]https ... ://worldofspectrum.org/forums/discussion/38946/faulty-dk-tronics-keyboard#latest[/url ... />
    This one went a bit further . I like the tip ...
    harriusherbartio harriusherbartio February 2017 Hardware
  • Dk'tronics and other similar "add on" Speccy keyboards . What can be done with them and when?. The underlying assumption I am making here is that people who have them will want to "hang on" to them and may also want to get them working . But …

    ... for the repair of a faulty one . I think however I ... ) is great , just a little bit "out of my league" so ...
    harriusherbartio harriusherbartio March 2017 Hardware
  • Dk'tronics and other similar "add on" Speccy keyboards . What can be done with them and when?. The underlying assumption I am making here is that people who have them will want to "hang on" to them and may also want to get them working . But …

    ... for me it is a bit of a resource hog as ... repair the cabling on the faulty DK. ..
    harriusherbartio harriusherbartio March 2017 Hardware
  • Harlequin Rev G AssemblyAre there assembly instructions on the Rev G anywhere? I know there are some component load options wrt PAL vs NTSC on the schematic but I want to m…

    ... finished my HQ48K. Apart a faulty Z80A CPU it worked from ... G board. There are a bit tight spaces allocated for large ...
    Claudius Claudius March 2017 Hardware
  • Disabling the ROM without removing the whole thingHi! I've got my hands on a non-working issue 6a. I suspect the ROM may be bad, but other things may be faulty as well. I've read that in an otherwis…

    ... and the Z80 get a bit warm after a while. i ... think that the ROM was faulty. The ULA of course is ...
    Mikelone Mikelone April 2017 Hardware
  • Not bored with the Boards.Going through some old tapes stored rather badly I came across an unlikely item that that I must have stored away quickly with other low grade items …

    ... . It was sold as a "bit" faulty but I could not see ... even though it looks a bit too good to mess with ... /> Well the membrane was a bit tight to remove and the ... connectors a bit skewed at an angle but ...
    harriusherbartio harriusherbartio April 2017 Hardware
  • Not bored with the Boards.Going through some old tapes stored rather badly I came across an unlikely item that that I must have stored away quickly with other low grade items …

    ... Ebay seller's generically "slightly faulty" Spectrum ? Well I think ... . I was just a "bit blind" to the possible faults ... :- 1) They are a bit pricey :iIf you can get ... for one regulator is a bit steep ? 2) And you ... whole thing took quite a bit of effort so I ...
    harriusherbartio harriusherbartio April 2017 Hardware
  • Not bored with the Boards.Going through some old tapes stored rather badly I came across an unlikely item that that I must have stored away quickly with other low grade items …

    ... change it!

    2) Faulty Spectrums are harder to fix ... . I treated this faulty Spectrum repair a bit too lightly and allowed ... to get a bit low I got a bit experimental using Radials ...
    harriusherbartio harriusherbartio April 2017 Hardware
  • ZX Spectrum 48K it only shows colored barsHello, I'm new to the forum and I need help with a ZX Spectrum 48K which I bought recently unfortunately defective. I want to mention that before t…

    It maybe a faulty ULA. However, despite running warm, ... keyboard (or use a thin bit of insulated, solid core wire ... that reads the RAM is faulty, the CPU should be still ...
    1024MAK 1024MAK August 2017 Hardware
  • Interrupts, 16k Spectrums and snowI'm writing something for the 16k Spectrum and I want to use interrupts. The avilable documentation doesn't seem clear enough for me to figure out ho…

    ... , the Spectrum is actually a faulty 48k working as a 16k ... />
    Also ignore the bit about bit 0 being zero [quote="Zilog ... bytes to form a 16 bit address, only 7 bits are ... the least significant bit is zero.[/quote]. Bit 0 can be 1 ...
    1024MAK 1024MAK August 2017 Development
  • Troubleshooting RAM IC's on Spectrum +2 Grey?Got myself a grey +2 but at startup it shows something very similar to this: [img]https://preview.ibb.co/mmai5F/2_Ram_Fault.png[/img] I also su…

    ... the border to show which bit or bits of the byte ... to which chip(s) are faulty) are responding incorrectly.
    Once ...
    1024MAK 1024MAK August 2017 Hardware
  • Replacing lower RAM 4116 ZX Spectrum 48k - desoldering advice please?A long post, but interesting pictures perhaps. :) I'd like some advice: (also apologies I think I picked the wrong 'Hardware' category for this, plea…

    ... a bit with your repair. Yes there maybe some faulty lower ... don't rule out any faulty upper ram IC's ... ran the test on my faulty Speccy which highlighted the ... This has made repairing this faulty Speccy much easier for me ... watt one and the faulty IC's just fell ...
    Your Spec-chum Your Spec-chum September 2017 Hardware
  • Replacing lower RAM 4116 ZX Spectrum 48k - desoldering advice please?A long post, but interesting pictures perhaps. :) I'd like some advice: (also apologies I think I picked the wrong 'Hardware' category for this, plea…

    ... dark a bit with your repair. Yes there maybe some faulty lower ... don't rule out any faulty upper ram IC's either ...
    Kamineko Kamineko September 2017 Hardware
  • Not bored with the Boards.Going through some old tapes stored rather badly I came across an unlikely item that that I must have stored away quickly with other low grade items …

    ... "

    A lot of faulty units were also reported . So ... . Well they have got a bit cheaper but it appears they ... degree ( but they are a bit better)

    But it ...
    harriusherbartio harriusherbartio September 2017 Hardware
  • TZX/Taper headachesI've been doing a stocktake of all my Spectrum stuff, most of which I bought in a job lot a few years back, and there's a whole load of covertapes in…

    ... file", VOC format, 8-bit, no change to the sample ... do is convert a 16-bit, mono, 44100 Hz WAV ... file to an 8-bit, mono, 44100 Hz VOC ... from a two-minute 16-bit mono WAV of a ... and I thought it was faulty so I sent it back ... was 12 and was a bit new to all this ( ...
    The Mighty Dopethrone The Mighty Dopethrone December 2017 Games
  • Help with a TIMEX TC2048 and memory problemBought a 2nd hand Timex TC2048 but unfortunately I detected a problem with the machine which is preventing it from working properly. I believe it …

    MN4264 are 16384 by 4 bit DRAM chips. One pair will ... of the 74LS157 multiplexers is faulty.

    [b][i]Mark ...
    1024MAK 1024MAK December 2017 Hardware
  • What was the last Spectrum game you bought (in a shop)?Not counting recent-ish Cronosoft releases etc... what was the last ever game you bought before you packed your Speccy away and moved on to other pur…

    ... , anyway, the 48k was a bit faulty and it tended to reset ...
    WhenIWasCruel WhenIWasCruel March 2018 Games
  • ZXBaremulator v3.H(ikoki) BetaHi, Thanks to a Recreated ZX kindly donated by Hikoki, I've added support for it to ZXBaremulator. Now two keyboards can be connected to the PI…

    ... Hub had turned into a bit of a "red herring" but ... taken that I have 2 faulty Recreated Spectrum keyboards then this ...
    harriusherbartio harriusherbartio April 2018 Emulators
  • Opus Discovery "the big switch on" (after 20 years)I have a few of these Opus Discovery's with different Eproms in that have not been swiched for 15-20 years or so . I am in no rush to switch any on …

    ... stage

    The next bit was extracting the rest of ... have had the temperature a bit high because it was a ... this early stage that a bit of track lifted . The socket ... sure there is no ongoing faulty tracking or shorting and making ...
    harriusherbartio harriusherbartio April 2018 Hardware
  • Spectrum stuff online "buying skills". Are real skills needed for low cost Speccy items? Firstly , there are some pretty fundamental requirements that are probably too basic to mention , like buying the right software at the right pri…

    ... , I opened it up a bit so that pages lay flat ... concerned with my faulty copy : my book was faulty but the seller ...
    harriusherbartio harriusherbartio May 2018 Sinclair Miscellaneous
  • Oric Atmos HelpMaybe a bit of a long shot but there are enough skilled people here, so hopefully I can get some thoughts please. OK I have an Oric Atmos here, it…

    ... 'free' option aside from a bit of time, and I can ... just the unit itself as 'faulty' , although as mentioned aside from ...
    spider spider September 2018 Chit chat
  • ZX Omni 128HQ (laptop or desktop)Anyone any experience of these. I know they're keeping the discussion etc on a Facebook group (though I'm not on FB, so that's a mystery to me). Is…

    Well I am a bit of disappointed with the quality ... the main downside was a faulty AY chip (AY clone). Please ... /> The AY clone chip was faulty and had better days long ...
    Claudius Claudius October 2018 Hardware
<1…12131415161718…34>

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