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Search Again :: Adv Search 707 results in 0.001s
<1…13141516171819…24>
  • ZX Spectrum 48K AV IssueOK so I dugout my old 48K Speccy today and decided to AV mod it. I did the mod (pretty easy) but the picture I am getting is this. [url=http://posti…

    ... 85?C 100UF 25V Axial Electrolytic Capacitor
    Radial types ... /> 11-3696 100uf 16v Radial Electrolytic Capacitor 105?C
    ... 11-3746 4700uf 16v Radial Electrolytic Capacitor 105?C
    ... 11-3748 4700uf 25v Radial Electrolytic Capacitor 105?C
    ...
    Beaps Beaps July 2014 Hardware
  • ZX Spectrum 48K AV IssueOK so I dugout my old 48K Speccy today and decided to AV mod it. I did the mod (pretty easy) but the picture I am getting is this. [url=http://posti…

    ... really, once you get the electrolytic capacitors and TR4/TR5 changed ...
    balford balford July 2014 Hardware
  • ZX Spectrum 48K Issue 3, loss of -5V rail.Hi all, I've googled this problem and poured over the electrical diagrams for the circuitry concerning the power supplies and I believe I know what …

    Agreed, change all the electrolytic capacitors first.

    Also, check the 5v Zener diode (D16).

    I fixed an issue 2 earlier this year where failure of that diode took out the -5v rail.

    B
    balford balford August 2014 Hardware
  • ZX Spectrum 48K Issue 3, loss of -5V rail.Hi all, I've googled this problem and poured over the electrical diagrams for the circuitry concerning the power supplies and I believe I know what …

    ... , it could be a bad electrolytic capacitor, a faulty Zener diode ...
    1024MAK 1024MAK August 2014 Hardware
  • Powering a Spectrum with 5v?I live in the States, but I'm originally from England. My original Spectrum is still at my mum's house in the UK, and I was thinking of asking her t…

    ... time and ideally all its electrolytic capacitors should be replaced to ...
    Zorn Zorn August 2014 Hardware
  • Help put this back to 16kSo this issue 2 arrived today and ive opened it up just to nosey and confirm that infact it is an issue 2. Now from the help offered in an earlier po…

    ... faulty.

    - Replace all electrolytic capacitors.

    - Repeat the ...
    Zorn Zorn August 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…

    I always change the electrolytic caps on practically anything old ...
    gtsamour gtsamour August 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…

    ... supply current to a large electrolytic capacitor, the capacitor will charge ...
    1024MAK 1024MAK August 2014 Hardware
  • Composite picture qualityI have read many many discussions here about the composite video modification of the Spectrum 16/48K models. I have choosen one of the simplest comp…

    ... performance compared to small value electrolytic capacitors of the same value ...
    Renegade Renegade August 2014 Hardware
  • Bad (new) 100uF caps causing video disturbanceJust to let you know about one of my small experiences: I had a couple of 48K boards I was refurbishing: new electrolytic caps, composite video, te…

    Electrolytic capacitors do degrade even if ...
    1024MAK 1024MAK August 2014 Hardware
  • Bad (new) 100uF caps causing video disturbanceJust to let you know about one of my small experiences: I had a couple of 48K boards I was refurbishing: new electrolytic caps, composite video, te…

    ... on Ebay.

    When electrolytic capacitors are domed or bulging ...
    IanJ IanJ August 2014 Hardware
  • Can someone help me...Hey all Well after my second complete cock up off ebay I'm feeling pretty deflated now regarding spectrums... First one I ordered was a +2A which h…

    ... some preventative maintenance (membrane replacement, electrolytic capacitor replacement etc.) is going ...
    balford balford August 2014 Sinclair Miscellaneous
  • Next step for fixing my speccy?Hi guys, I've picked up my faulty Spectrum aiming to fix it. So I followed the excellent JouledperCoulomb videos on Youtube for the basics and I am …

    ... /> First thing - CHANGE all the electrolytic capacitors - with respect, if you ... don't know what an electrolytic capacitor is, leave well alone ...
    DEATH DEATH August 2014 Hardware
  • Next step for fixing my speccy?Hi guys, I've picked up my faulty Spectrum aiming to fix it. So I followed the excellent JouledperCoulomb videos on Youtube for the basics and I am …

    ... /> First thing - CHANGE all the electrolytic capacitors - with respect, if you ... don't know what an electrolytic capacitor is, leave well alone ...
    Spekkie Spekkie August 2014 Hardware
  • I have returned! This time with no tape problems!Hello all. Some of you may remember me from about a month or so ago with this little spawn of satan... :lol: [IMG]http://www.ridgedpixel.co.uk/proj…

    Change all the electrolytic caps (should all be blue ...
    balford balford August 2014 Sinclair Miscellaneous
  • Short Circuit Damage?Hey Spectrum fans, Currently trying to diagnose what is wrong with my 48K Issue 4B ZX Spectrum. The initial problem was the fact it would not boot -…

    ... 're at it, replace ALL electrolytic caps.

    Get this ...
    DEATH DEATH 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_…

    ... of the machine, all the electrolytic capacitors will need to be ...
    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_…

    ... />
    And yes, replace all electrolytic caps when possible. I'd ...
    balford balford August 2014 Hardware
  • C46 Capacitor MarkingHi all I've just watched this part of this video: [url]http://www.youtube.com/watch?v=TeCVt2T-YSo&t=17m0s[/url] And he says the marking is incorrec…

    ... the Spectrum on with an electrolytic capacitor installed the wrong way ...
    Zorn Zorn September 2014 Hardware
  • C46 Capacitor MarkingHi all I've just watched this part of this video: [url]http://www.youtube.com/watch?v=TeCVt2T-YSo&t=17m0s[/url] And he says the marking is incorrec…

    ... of polarised components like electrolytic capacitors is correct. Electrolytic capacitors sometime explode ...
    1024MAK 1024MAK September 2014 Hardware
  • Early ZX80/81 RAM Pack???Hey all I got given this RAM pack... It doesn't work (i know why now) but compared to my RAM pack this one is really strange... Is this a ZX80 RAM p…

    ... any doubt, renew) and the electrolytic capacitors have been renewed, then ...
    1024MAK 1024MAK September 2014 Hardware
  • 48k Spectrum "Jail Bars" Removal?Hi all Just curious I think I saw a post here about the bars that go down the screen on some 48k's I think he referred to them as "jail bars". Any…

    ... much:

    - Replace ALL electrolytic caps. (or check with ESR ...
    Tuukka Tuukka September 2014 Hardware
  • Video fault on issue two ZX boardI've trawled the Internet and drawn a few blanks as to where to look to resolve the fault with my issue two board. I'm hoping a few of you knowledgea…

    ... the + side of a 100uF electrolytic capacitor, with the negative side ...
    Wiggs Wiggs September 2014 Hardware
  • Video fault on issue two ZX boardI've trawled the Internet and drawn a few blanks as to where to look to resolve the fault with my issue two board. I'm hoping a few of you knowledgea…

    ... the + side of a 100uF electrolytic capacitor, with the negative side ...
    1024MAK 1024MAK September 2014 Hardware
  • Faulty 48+ Help NeededHi, This is what I get when I plug in the spectrum, this is tuned in. Vid shows a reset. Any ideas, or pointers on the first thing to check. Keyboa…

    ... least some of the old electrolytic capacitors at the same time ... a lower voltage type. Most electrolytic capacitors fitted to Spectrum boards ...
    1024MAK 1024MAK September 2014 Hardware
  • 48k Spectrum "Jail Bars" Removal?Hi all Just curious I think I saw a post here about the bars that go down the screen on some 48k's I think he referred to them as "jail bars". Any…

    ... capacitors connected across all the electrolytic capacitors used to smooth the ... given that all the old electrolytic capacitors should be replaced.
    1024MAK 1024MAK September 2014 Hardware
  • 'Interesting' Issue 2 modSo I've been lurking on this forum for a while and I've got to the point where I want to see if I can repair a speccy.. so I bought me a 'broken' one…

    ... 's either been C49 (1uf electrolytic capacitor) or D16 (5v1 Zener ...
    balford balford September 2014 Hardware
  • Noob repairs of an S2 and S6AI received two Spectrums a Series 2 and a Series 6A both of which are not working. I don't know anything about electronics so thought my lad and I wo…

    ... board I'd replace all electrolytic capacitors before running it for ...
    balford balford September 2014 Hardware
  • Weird 1982 Copyright message after cap change.Hello All, As mentioned before I had a busted Issue 6 48K Spectrum+, one of the capacitors had leaked, and trashed the keyboard membrane ribbon. Us…

    ... :

    None of the electrolytic capacitors has any direct bearing ...
    1024MAK 1024MAK October 2014 Hardware
  • Weird 1982 Copyright message after cap change.Hello All, As mentioned before I had a busted Issue 6 48K Spectrum+, one of the capacitors had leaked, and trashed the keyboard membrane ribbon. Us…

    ... :

    None of the electrolytic capacitors has any direct bearing ...
    Korinel Korinel October 2014 Hardware
<1…13141516171819…24>

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