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Search Again :: Adv Search 1000 results in 0.014s
<1234567…34>
  • Bad quality of ZX 48K PCB?Is the quality of ZX 48K PCB's not the same by every motherboard? I have here a motherboard and desolderd the ZX 80 Cpu. No problem but near the des…

    Is the quality of ZX 48K PCB's not the same by ...
    -Micky -Micky January 2010 Hardware
  • Spectrum PCB reworkHaving repaired a fair few spectrums over the years I have always found replacing the memory chips a right pain in the arse. When replacing componen…

    ... plenty of soldawick. But, the 48K pcb is of a type where ...
    absorbentgnome absorbentgnome August 2005 Sinclair Miscellaneous
  • ZX 48K issue 4a with ULA 5?I got a ZX 48K PCB. It works but it has a ULA 5. I thought on the issue 4a is a ULA 6 or later. Micky

    I got a ZX 48K PCB. It works but it has a ULA 5. I thought on the issue 4a is a ULA 6 or later.


    Micky
    -Micky -Micky May 2010 Hardware
  • ZX 48K what kind of repair?I bought this ZX 48K PCB but what kind of repair is this? It is a issue 4A PCB. [IMG]http://file1.npage.de/006803/97/bilder/zx48k_4a_pcb.jpg[/IMG] …

    I bought this ZX 48K PCB but what kind of repair is this?

    It is a issue 4A PCB.

    [IMG]http://file1.npage.de/006803/97/bilder/zx48k_4a_pcb.jpg[/IMG]


    Micky
    -Micky -Micky May 2010 Hardware
  • Hi-Res 48K pcb photoany one got a hi-res photo of a speccy pcb, need one for some tattoo work I want to have done on my back I could crack open one of mine, just someon…

    any one got a hi-res photo of a speccy pcb, need one for some tattoo work I want to have done on my back

    I could crack open one of mine, just someone might have a really clear piccy and I might not get a decent photo of mine
    BiNMaN BiNMaN August 2011 Sinclair Miscellaneous
  • ZX in FPGA...Hmm..seems nobody is interested in a replacement PCB with FPGA...well..heading towards next FPGA projects then...C64 and others (o; [ This Messag…

    ... )

    PCB dimension: 213*130mm, drop-in replacement for ZX 48K PCB.
    klingler klingler July 2004 Sinclair Miscellaneous
  • ZX in FPGA...Hmm..seems nobody is interested in a replacement PCB with FPGA...well..heading towards next FPGA projects then...C64 and others (o; [ This Messag…

    ... , drop-in replacement for ZX 48K PCB.


    [/quote ...
    pern pern July 2004 Sinclair Miscellaneous
  • using ic/chip holders ?advisable or not to put them in an original spectrum? I mean to save soldering in the future, if I'm gonna be having the machine fixed. I saw them …

    ... =RetroTechie;401862]....eg. rip a PCB trace off the board. This ... skilled soldering folks (btw. Spectrum PCB is fairly good in this ... bad name :-). In fact some 48K PCB versions are really, really bad ... the top side of the PCB even after mounting the connector ...
    roko roko November 2009 Hardware
  • component out?I would like to connect ZX48K to plasma TV with component cable. I read somewhere that signals are on the expansion edge connector. Do I need somethi…

    ... -5 volt on the ZX 48K PCB that goes to the 4116 ...
    -Micky -Micky April 2010 Hardware
  • Upgrading a 16k ZX to a 48kHi First post here (usually on Amiga forums) so hello! I've got a dead 48k ZX Spectrum with a damaged motherboard and a fully working 16k ZX. The 1…

    ... ) which are populated on the 48k board.

    My ... my 16k into a 48k or is it more ... Assuming the damage in your 48K PCB don't affect the chips ... at the top of your 48K PCB there are a couple of ... same connections on your 16K PCB by soldering a pice ...
    mcleod_ideafix mcleod_ideafix October 2010 Hardware
  • RAND USR that doesn't work in emulators and clonesEons ago, I "discovered" a strange RANDOMIZE USR. This is it: [b]RANDOMIZE USR 46578[/b] Using it on a genuine ZX Spectrum rubber key or Plus model,…

    ... in my ZX Spectrum 16K/48K PCB's. Zilog being the most ... still frequently seen on 16K/48K PCB's.

    Cold start ...
    mcleod_ideafix mcleod_ideafix May 2011 Emulators
  • SPECTRA New from Paul FarrowLooks good! Read about it [URL="http://www.fruitcake.plus.com/Sinclair/Spectrum/Spectra/SpectraInterface.htm"]here[/URL]

    ... have more space for the PCB, no need for an oscillator ... I have many more spare 48K PCB's for testing than 128K ... Besides, it seems that the 48K have a less robust ULA ... s likely to be more 48K damaged ULA's and ... Much more space for a PCB for an internal mod (which ...
    mcleod_ideafix mcleod_ideafix August 2012 Sinclair Miscellaneous
  • Project #1 : Speccy 128k+2 with diVide inside...Hi guys, I just have finished my Super Spectrum #1 The idea (I was thinking of that since 2007) was to fit an english grey +2 motherboard in a +2A…

    ... compatibility with the old-style 48K keyboard connectors, whereas with the ... the connectors on the original 48K PCB. [B]Just a guess. [/B ...
    memrah memrah May 2013 Hardware
  • Project #1 : Speccy 128k+2 with diVide inside...Hi guys, I just have finished my Super Spectrum #1 The idea (I was thinking of that since 2007) was to fit an english grey +2 motherboard in a +2A…

    ... compatibility with the old-style 48K keyboard connectors, whereas with the ... the connectors on the original 48K PCB. [B]Just a guess. [/B ...
    bugpat bugpat May 2013 Hardware
  • 48k+ ULA'sI've got three ULA's here that only work in certain boards. Thought I was going nuts, swapping, changing stuff around. But hey, I've got two working …

    ... distinct versions of the Spectrum 48K ULA:

    [LIST]
    PCB directly as TR6.
    [*]6C001E ... as a replacement to all 48K PCB issues
    [*]5C102E/5C112E/6C001E ...
    balford balford March 2014 Hardware
  • 48k+ ULA'sI've got three ULA's here that only work in certain boards. Thought I was going nuts, swapping, changing stuff around. But hey, I've got two working …

    ... distinct versions of the Spectrum 48K ULA:

    [LIST]
    PCB directly as TR6.
    [*]6C001E ... as a replacement to all 48K PCB issues
    [*]5C102E/5C112E/6C001E ...
    bverstee bverstee March 2014 Hardware
  • Help me fix my grail ZX 128k SpectrumHi all, Ok today my grail toaster rack ZX spectrum 128k turned up. I finally found one and for a reasonable price. I powered it up and..... Nothing …

    ... work if plugged into a 48K? (You can take the 128K ... just plug it into a 48K PCB as is to test.)
    balford balford August 2014 Hardware
  • Keyboard compatability question (in theory)I don't have access to check this and an image search on Google etc does not always lead to accurate results. Anyway, in theory: Can I use a 48+ / …

    A grey +2 keyboard membrane can be made to fit a 48K PCB by removing the keyboard molex connectors and attaching them to flying leads.

    B
    balford balford August 2014 Hardware
  • Keyboard compatability question (in theory)I don't have access to check this and an image search on Google etc does not always lead to accurate results. Anyway, in theory: Can I use a 48+ / …

    ... be made to fit a 48K PCB by removing the keyboard molex ...
    DEATH DEATH August 2014 Hardware
  • PCB thicknessHas anyone here got a micrometer and access to a 48k and a 128k grey? Im convinced the greys have a thinner pcb which would explain certain devices a…

    ... will measure an issue 1 48k PCB and both an issue 1 ...
    1024MAK 1024MAK November 2014 Hardware
  • ULAAre ULA's (for Spectrum 48k's) interchangeable through the different issues? To give some background, to work out what was wrong with an old speccy I…

    ... distinct versions of the Spectrum 48K ULA:

    - 5C102E: Original ... and is included on the PCB directly as TR6.
    - 6C001E ... as a replacement to all 48K PCB issues
    - 5C102E/5C112E/6C001E ...
    balford balford September 2015 Hardware
  • Clamping Speccy InterfacesThere are a huge number of broken Speccy interfaces available . I came across one on Ebay recently said to be "partly working" or similar .Why are th…

    ... up with a ZX Spectrum 48k PCB with hard wired joystick ports ... .

    Previously this Speccy 48k board had been mounted in ... recently pillaged for its good PCB which was needed elsewhere .So ... in a faulty DK keyboard PCB in this keyboard .This meant ...
    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 …

    ... best compromise for positioning the PCB in the case : the wearsaver ... back and this forced the PCB deeper into the case which ... DK keyboard and a Spectrum 48k PCB (Goldfinger3) and both these need ...
    harriusherbartio harriusherbartio March 2017 Hardware
  • ZX-Uno moddingStarting with ZX-Uno case modding I have not yet received my ZX-Uno yet (it is in the post) but I know that I will have to do at least one mod …

    ... limited edition package with the PCB, complete with case and PSU ... mounting holes as the original 48k PCB . You can also use a ... 48k+ keyboard . If you have one ...
    harriusherbartio harriusherbartio June 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 …

    ... is just supporting the Speccy PCB which is not being strained ... Vice is much better than PCB grip stands For instance , I ... get to grip the Speccy 48K PCB.I will not have to ...
    harriusherbartio harriusherbartio January 2022 Hardware
  • Partslist ZX 48K issue 4 PCBHas anyone the partslist from the ZX 48K issue 4 PCB? I can only find those from issue 1, 2, and 3. Thanks! Micky

    Has anyone the partslist from the ZX 48K issue 4 PCB? I can only find those from issue 1, 2, and 3. Thanks!


    Micky
    -Micky -Micky February 2010 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…

    Recently one of my 48k rubber key (issue 4) machine ... very hot.

    This 48k was completely overhauled a few ... a new speaker to the PCB, but had to add a ...
    thomas3120 thomas3120 February 2009 Hardware
  • Repair options for my own dear old Spectrum 48k?Hello all, This is my first post to this wonderful forum, which is part of a truly great website! My name is Arnold, and I live in Utrecht, The Nethe…

    ... .

    My ZX Spectrum 48K doesn?t function anymore. It ... simple, just swap the entire PCB with one from a working ... to do: replace the entire PCB (at the expense of another ...
    ZXHistory ZXHistory October 2009 Hardware
  • 48K Spectrum gone deaf?Hi Someone recently gave me a rubber-keyed 48k ZX Spectrum which they'd tucked under a bed for years and said needed repairing. I tested it using m…

    ... gave me a rubber-keyed 48k ZX Spectrum which they'd ... dry joints or melting off PCB tracks but I'm not ...
    UKRetroGamer UKRetroGamer January 2010 Hardware
  • broken 48K, strange screenwell I finally socketed all lower 16K ram chips, (8 of them in a row near corner, not those 4 in two rows) and replaced them with new ones but it did…

    ... screen (some interesting graphics!) when 48K is turned on.
    strangely ... chip on this 48K is sitting inside small PCB on top of ... more chips on that small PCB.

    what should be ...
    orange orange December 2010 Hardware
<1234567…34>

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HitBox

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48k 20.9K 29.1K
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Related Threads

  • 48k / 48k+ Keyboard MembranesCan anyone out there help me to locate a set of new keyboard membranes for my Speccy 48k (rubber keys) and 48k+ . <br /> I've just dusted them off af…
  • Bad quality of ZX 48K PCB?Is the quality of ZX 48K PCB's not the same by every motherboard?<br /> <br /> I have here a motherboard and desolderd the ZX 80 Cpu. No problem but …
  • Partslist ZX 48K issue 4 PCBHas anyone the partslist from the ZX 48K issue 4 PCB? I can only find those from issue 1, 2, and 3. Thanks! <br /> <br /> <br /> Micky
  • Hi-Res 48K pcb photoany one got a hi-res photo of a speccy pcb, need one for some tattoo work I want to have done on my back<br /> <br /> I could crack open one of mine,…
  • ZX Spin, emulated speccy models (48K and 48k+?)So, on the "Hardware/Spectrum Model" page of the SPIN options menu, 48K and 48K+ are listed as two separate options. I thought aside from a reset but…
  • Working 48k or 48k+ motherboardJust looking to make up a speccy from the parts I have round me, all I need is a working motherboard. Anyone have one they will part with for a few …
  • 48K (in 48) vs 48K in 128K / +2 / +3I'm sorry I've probably overlooked this but despite a search I did not see it. :( and looking at some of the tech pages did not really answer my ques…
  • Keypanels for the spectrum 48k and 48k+I have already found one of these "keypanels set" for the rubber 48k but I am curious to know if there were any more types or models of these keypane…
  • 48K ZX Spectrum 48K Recap (Capacitors) Or Not?I have seen arguments "for an against" on this subject by some "high calibre" experts . So if the experts can differ on this question then my questi…
  • 48k S-video output -- pcb board(credits 1024MAK &amp; RGA24) just fitted a revision A of the s-video board to a issue 2 specie and i am very impressed with the results. the picture…

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