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<1…15161718192021…34>
  • Finding a good (UK) external switch mode power supply for the basic 48k and 128k ZX SpectrumsThis idea has probably "done the rounds" by now . I think I have heard about it a bit late . This thread with look at replacing the original "heavy l…

    ... nothing attached and switched the power on without a Spectrum and then ... PSU to deliver its promised power output. Generally, the cheaper the ... it is. They are cheap on ebay too, I have this ... also draw their full rated power and see how hot they ...
    RobeeeJay RobeeeJay October 2019 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 …

    Putting the power on

    This is always ... of a risk with switching power on especially for a old 16k ...
    harriusherbartio harriusherbartio October 2019 Hardware
  • Dispair at the pace of life > 40 years.Its been a funny kind of winter this year. The fall from August to December went so fast for me that it seemed like a blink. Christmas comes and ever…

    ... or two friends.Work strive..power on..nothing..endless nothing.
    < ... br /> On the other hand, I do ... Instead of defensive nastyness based on self protection..I got much ... third belongs to women based on their feritlity and worth. The ...
    Ælita Ælita January 2020 Chit chat
  • The Diagnostic PCBIt arrived in the post today so this is my first go with the Diagnostic PCB. (bought on Ebay) This item , I think , does the same job as Retroleu…

    ... 2-3 Plug in cartridge . Power on Spectrum ,Enter command CLEAR 32767 ... page number to 1-2. Power on Spectrum and ROM Tests will ... />
    These instructions are also on the Ebay listing so presumably ... .I got the same effect on the second Spectrum . It filled ...
    harriusherbartio harriusherbartio February 2020 Hardware
  • The Complete List Of The Causes Of Lower Ram Failure?Well the aim is to get a comprehensive list.I ask this because I know very little about it . I know that failure of "power supply" related capacitors…

    ... the last one with the power on .I took that as ... with residual voltage left on the circuit after switch ... untested" secondhand ZX Spectrum on Ebay which is found to ... as the TV , the power supply and the various ... relative to the price achieved on "good uns", but ...
    harriusherbartio harriusherbartio March 2020 Hardware
  • Have you got a project or are doing anything interesting during lock down?I’m “having” “fun” cutting shapes in wall tiles to fit around the electrical switches, sockets and heating/boiler control box in the utility room. …

    ... I did the same stuff on my Sun and Dawes and ... , you need the power on the front, the control on the rear.
    mik3d3nch mik3d3nch May 2020 Chit chat
  • Spectrum 128k advice neededHi, I'm new to this forum and the spectrum world. I have this spectrum "toastrack" that was working fine until today. It doesn't boot anymore, it s…

    ... powered off? Then turn the power on, let it sit for a ...
    Ast_A_Moore Ast_A_Moore July 2020 Hardware
  • The Disciple clone... doable?Hi. As a spectrum user in the 80's this was the dream interface all-in-one for me. I have a 48k+ and planning on get a 128K toast-rack later. Anyway…

    ... out how/why Disciple works on 128K ?

    my current ... relatively slow voltage increasing after power-on or reset button press (0 ...
    MetalliC MetalliC July 2020 Hardware
  • 12V missing on an issue 3I’ve been working on an issue 3 Spectrum +. It shows thin distorted vertical stripes on bootup. +5 and -5V are all right but the 12V line measures ro…

    ... the capacitor that provides the power on reset, which you have already ... is working in your post on 13th of July and you ... you continuity tested the signals on the edge-connector back to ... go to the relevant pin on the ROM chip (it goes ...
    1024MAK 1024MAK July 2020 Hardware
  • Speccy 4A board problemHi all. I was hoping for some help with my Speccy (with 4A Board) before I send it off for repair. When I power it on all looks fine (i.e. copyright …

    Thanks for all the info there Mark. Much appreciated. The power on screen is a little "noisy" but looks ok with the copyright lettering being very legible. I'll check out the rest of the information you've given and see what I can see. Thanks again.
    sten969 sten969 September 2020 Hardware
  • Underground bunker being setup under LondonJust came upon this video of urban explorers. They found this underground bunker. It goes for miles and miles, has multiple levels, power on, autom…

    ... and miles, has multiple levels, power on, automatic lighting, thousands of beds ... archive footage. Some interesting labels on a few of the boxes ... none the less. The labels on the security archive boxes were ...
    mel the bell mel the bell January 2021 Chit chat
  • Key Materials ,Concepts , and Ideas for DIY Cases For ZX Spectrum Interfaces.In the 1980's ZX Spectrum Interfaces were largely supplied "cased up" or encased . Nowadays often they are not as they are usually sold as bare PCBs.…

    ... design the "slider groove" on the bottom plate is replaced ... . With top plate bolted on the process of interface fitting ... Put the ZX Spectrum Interface on the ZX Spectrum itself , ... /> 5) Plug in Spectrum power connector and power on..

    This ...
    harriusherbartio harriusherbartio January 2021 Sinclair Miscellaneous
  • Key Materials ,Concepts , and Ideas for DIY Cases For ZX Spectrum Interfaces.In the 1980's ZX Spectrum Interfaces were largely supplied "cased up" or encased . Nowadays often they are not as they are usually sold as bare PCBs.…

    ... the screw/bolt holes on an old case are ... the edge connector with the power on ( so I will only ... can be put together on the glue side with ... old interfaces on old Spectrums .

    On another thread ... not always work well on old unmodified rubber key ...
    harriusherbartio harriusherbartio March 2021 Sinclair Miscellaneous
  • Windows 11 - It's commingJust when you thought that there was going to be no more new versions of Windows, a recent leak reveals Microsoft are due to announce Windows 11 soon…

    I have an XP PC that occasionally gets dragged out, it takes a good 10 minutes from power on to usability. It's fine once it gets going.
    Antiriad2097 Antiriad2097 July 2021 Chit chat
  • 128K refurb.... What is the best way?Here's the latest Spectrum I got... Finally got a Toastrack... Not sure if it was good value ( around US$100 ). [img]https://os.blackice.com.au/us…

    ... a spillage and wouldn't power on. It was good for the ...
    Your Spec-chum Your Spec-chum July 2021 Hardware
  • 48k ULA heat sink required ?ULA heat sink worthwhile mod or just internet hype ? if worthwhile is a cheap heat sink going to cut the mustard ? i wonder if anybody has done any …

    ... a heatsink is not required on the ULA. How many old ... cars do you see on the road with an extra ... , the most stressful time is on power up / power on. Once everything has reached ... have left their ZX Spectrum on for three or more days ...
    1024MAK 1024MAK October 2021 Hardware
  • Things that people >= 40 (ish) would recognize (and others would likely not)#1: Used to see these all over the place, usually right above the bath tub. [img]http://www.constructionphotography.com/ImageThumbs/A052-01718/3/A0…

    ... pshkqskrrqhskhp (and so on, and so on, and so on...)

    I ... out to the sticks. The power on the signal must have been ...
    The Mighty Dopethrone The Mighty Dopethrone January 2022 Chit chat
  • Monitor problemI got my new PC earlier but when i plugged everything in i got the message 'no cable connected' on the monitor. The new PC has an RTX card so i had …

    ... initial p.o.s.t (power on self test) screen before windows ... .s.t it's running on basic settings before windows and ...
    moggy moggy February 2022 Chit chat
  • Computer crashes on boot problemHelp, I need help !! My Computer crashes randomly, sometimes just after start-up sometimes it will last for ages. I then get the Blue screen with…

    ... to switch of all power, disconnect the 20pin power to MB and ... />
    I then left it on for about 5 mins and ... after power cut or surge during a storm.

    Problem is ... in attempts to find the problem.

    Thanks in anticipation
    murtceps murtceps June 2007 Chit chat
  • +2 power supply on standard SpecciesHi! I have a few 48K speccies, and I run them using a shitty chinese multi-voltage power supply. I've heard some horror stories of that power suppli…

    ... a shitty chinese multi-voltage power supply. I've heard some ... horror stories of that power supplies, so I was wondering ... could use the +2 PS on them. Is the same voltage ... /> Is the extra amperage a problem for the little speccies?
    Hernán Pablo Álvarez Hernán Pablo Álvarez January 2008 Hardware
  • Issue 3 power problemHi all, I have an issue 3 board with an odd power problem, I have no -5V in fact, measuring the voltage on this line leads to a surprising result : …

    ... 3 board with an odd power problem, I have no -5V ... fact, measuring the voltage on this line leads to a ... D16 and R54.

    On the off chance I swapped ... the heck might be going on here, I've been ... repairing Speccies on and off since the late ...
    prime prime July 2012 Hardware
  • ZX Spectrum+ video ? red on green problemThis is my first post on the forum, so let me introduce myself. I am retired for several years. For 30 years I have been a fan of the ZX Spectrum. I …

    ... stripes.
    Black letters on a white background are surrounded ... written in red ink on green paper. On the sample photos are ... I decided to tackle this problem.
    I replaced all ... improvement.
    I measured the power supply voltages at the relevant ...
    Boleslaw Jamroz Boleslaw Jamroz January 2015 Hardware
  • SPECCY+2 110V POWER SUPPLYI live in the USA and I bought a ZX Spectrum 128k +2 in eBay.com. The problem is that i don't know how to turn it on. All the major US appliances use…

    ... +2 in eBay.com. The problem is that i don't ... know how to turn it on. All the major US appliances ... 110V ac to 9v dc power supply would be enough. I ...
    Bruno Florindo Bruno Florindo April 2001 Sinclair Miscellaneous
  • OT: mouse problem on PC... help!I recently bought a laptop, and it is great, except for one minor problem; I cannot use a mouse wheel on it. Everything else works fine, all programs…

    ... one minor problem; I cannot use a mouse wheel on it. ... you move to control the on-screen mouse pointer) work ... ) doesn't produce a result on the laptop.

    problem, but it means that ... (including their mouse-wheel) on my desktop (WinXP) PC.< ...
    ewgf ewgf July 2005 Chit chat
  • ZX-81 Ram Pack problemHi! I know this is a ZX Spectrum forum, but I am hoping someone here might be able to help me out... I have posted this to c.s.s. but noone was able…

    ...
    The coil and the power supply are all OK. I ... I get the following line on the screen (as the ... difference with this RAMTOP problem is that when you ... posibility of faulty RAM somewhere on the lower
    addresses ... edited by: Tom-Cat on 2005-09-07 09:31 ...
    Tom-Cat Tom-Cat September 2005 Sinclair Miscellaneous
  • Spectrum Issue two problemI managed to bring back to life a issue two spectrum (at least the power supply cirquit). The screen is now crystal clear (after replacing all the el…

    ... two spectrum (at least the power supply cirquit).
    The screen ... brand new and working fine on other spectrums).
    Also some ... .
    What could be the problem? What should i try to ...
    gtsamour gtsamour December 2006 Hardware
  • Speccy Tunning ProblemHi all, I've just acquired a 1982 series 2 Spectrum 48K boxed in mint condition the only thing missing is the demo tape. Anyway tried to tune it in …

    ... I've found is the power socket at the back of ... bit of rust on it could this be the problem or is ...
    uncleclives uncleclives February 2007 Hardware
  • problem on the video output (spectrum 2+)Hello, I'am french. (Sorry my english is very bad). I have a problem on my spectrum 2 +. At the beginner the picture (on my tv) have 2 area where 2 t…

    ... bad).
    I have a problem on my spectrum 2 +. At the ... beginner the picture (on my tv) have 2 area ... are some square and line on the screen.

    Please ...
    pacman pacman February 2007 Hardware
  • ZX81 power supplyFriend gives me ZX81 without power supply and i want to test whether he work or not. Can i use Spectrum p.supply for that purposes? I dont want to d…

    Friend gives me ZX81 without power supply and i want to ... , and also there is another problem - difrent input jacks.
    Any ... to do, except order it on ebay?
    Pegaz Pegaz August 2007 Hardware
<1…15161718192021…34>

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