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Upper RAM replacement module issues with the DivideI got my new upper ram replacement module from Zorn yesterday and seem to be having some issues. When the machine is without the Divide it boots up …
... power consumption cause excess power supply ripple (especially if the Spectrum ... smoothing capacitors) that disrupts the new upper RAM?
Spectrum and the Divide is ... works perfectly with a Spectrum with the upper RAM ... -
Spectrum Missing -5vMy Spectrum is "almost" booting, just when you expect the (C) 1982 Sinclair Research to appear it just displays flashing squares on the screen :( I …
... with the internal power supply circuitry in the Spectrum. Do not power it for ... operated without the important -5V supply. If they are not already ... you sure that the +12V supply is okay?
What actual ... yes, replace TR4 with a new ZTX651 or ZTX653.
Spectrum +2A PSUI picked up a black +2A without a power supply. Looking on eBay the PSUs seem quite rare. The schematics for the PSU show +/-12 and 5v, would it be …
... a black +2A without a power supply. Looking on eBay the PSUs ... working that wasnt the original spectrum one?[/QUOTE]
Yep ... /> and I currently power it from this new one I built from ...Spectrum Not Responding to Keyboard InputHello, sorry if this thread is not in the correct place, This is my first post and I'm not sure where to post this type of thread. :lol: Anyway, I r…
Hi All
The new membrane arrived today and after ... hair dryer and inserting the new membrane I discovered it is ... a Power Supply as for some reason, the Spectrum arrived with a ZX80 power supply ...Plea for new hardwareI'm posting this as a poll as I want to judge if I'm a solo loon going on about this, or if people really are interested in either of the following S…
... are already disappearing, my new TV doesn't have composite ... interface away from the spectrum shorting out the edge ... the low voltage power supply which would complicate my power supply routing. With ... propeller which generates the spectrum display. I've tested ...Spectrum 128 malfunctioning with DIVMMCI recently got myself a spectrum 128 (toastrack) and a DIVMMC card so I could load games from it. It all works fine until it has warmed up and then t…
... faulty capacitors in the power supply or the Spectrum PCB. You won't ... . If DivMMC is powered by Spectrum (I'm not aware as ... the Spectrum PCB a hard time. You can attach a new capacitor ...48k PSU Alternatives & DivIDE v DivMMCHey folks, The 48k Speccy I got rather recently is missing it's power supply (though, I know it's working from testing it with the power supply from…
... power adapter, which I bought, cut off the connector and soldered new ... the safer way than having power supply with switchable polarity and check ... the current load - the original Spectrum power supply had 1.4A, so 2A ...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…
... mind that inside of the power supply there is a fairly big ... condition and so if the Spectrum it powers is working well ... measure the supply's ripple, as I did in the power supplies ... it won't cause the new owner any problems for a ...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…
... to see whether all 3 power supply voltages are present and correct ... can be re-wound with new wire. It is important to ... .
When buying a Spectrum that isn't explicitly advertised ...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…
... mode power supply) is substantially different to the circuit used on a Spectrum ... the coil is rewound (with new enamelled wire) on the the ... the ZX81 RAM pack and Spectrum versions.
Also if ...Hot plugable edge connector?Could the spectrum's edge connector have been made hot plugable without adding much to the manifacturing costs? I was thinking along the lines of a…
... pin), when I powered the Spectrum back up, it was ... or disconnect interfaces with the power on.
... (not a Spectrum) into a 50V DC supply instead of a ... if you get me some new parts, I'm sure I ... DRAM.
Maybe a power supply voltage gets onto a line ...Were +2A tape decks badly made?I remember as a kid in the early 90s(must of been as I started Secondary School in 1994 and this was before that) maybe even 88 or 89 I used to play …
... . It uses the same style power supply as the earlier Sinclair models ... use a much larger power supply to supply several different voltages needed for ... black one I got from new(it was my dads then ... Crash I think advertising every Spectrum game ever made I think ...Modern PSUHello everyone, I'm looking for a modern PSU for my Spectrums and my dual set of 3.5'' floppy drive+HxC floppy emulator. The one for Spectrum should …
... a PC Power Supply a few years ago with the Spectrum as all ... the supply voltages are there ... regulators in the Spectrum (changing the 7805 to a new switch mode ... standard power 12V supply with a 9v regulator which feeds the Spectrum ...New Floppy Interface for the +2a/b (black case)Hello everybody! For a long time I wondered about the posibility of adding a FDD to the +2a/b (black). I knew it was possible; All the logic is alre…
... floppy drive sony on brand new diskettes, first times I forget ... disks don't read on spectrum but this is normal, after ... fuse on +2a power :) May be getting power from interface is better ... are powering the Spectrum with the original +2 power supply it wont hold ...Speccy Vs Amstrad CPC Vs C64I hope no one minds me posting this here as well as in the announcements section. I'll delete it if there is a problem. It's childish fun but can I …
... I didn't get the power supply, and I still haven't ... shiny and new! :/
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Simply take the power plug ... off from your Spectrum and plug it ...New Raspberry PiThere's a new raspberry Pi coming out, faster quad core processor and 1Gb ram ! [url]http://www.bbc.co.uk/news/technology-31088908[/url]
[QUOTE=sj_howlett;817137]With this new version, I think 2015 will ... like buying a ZX Spectrum board, without keyboard, case, power supply and cables.The Spectrum Resuscitation ThreadKicking off this thread as a place where people who are fixing/restoring Spectrums (or indeed any other piece of related hardware) can show off their…
... find I had two ZX Spectrum's rather than one. Inspired ... as new!
A question though - the brick power supply for the spectrum ... (that's fed to the spectrum) just rectified and smoothed or ... PSU as well as the spectrum itself.not working issue 3Hi all, I received this mobo from ebay, after start i have this on screen [img]http://forest.no-ip.org/wos/issue3_01/20150728_135908.jpg[/img] …
... It looks as if this Spectrum still has its original electrolytic ... without all of the necessary power supply voltages presented to the lower ... it's very likely the new transistor you fitted for TR4 ... developed a short between its power supply rails with them in ...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 …
... grill pan ready for the Spectrum to be slid in .
new under support plate will help ... the following areas ;- 1) the power supply in the case 2) the ... at the top 4) the power lead at the back could ...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 …
... in a totally separate "power pod" The new lightness of the No ... small foot print of their new PC which is a ... Yesico fanless 450 watt PC power supply that may well "fit the ... with powering a "Toastrack" 128k Spectrum and all overheating problems should ...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 …
... find anything that added anything new just a reiteration of ... the Spectrum from the Opus Power supply , and utilized the original Spectrum power unit ... parallel powering as the power sources are not linked ... does not really add anything new to what we already ...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 …
... " : the "apparently viable" Opus and Spectrum Power Supply options
1) The ... ) The "New and Exciting" option : which involves replacing the original power supply with ... a more modern supply and inside the ...Bizarre ZX Spectrum faults (also possibly relevant to Spectranet compatibility problems).I'm attempting to repair an issue 4A 48K ZX Spectrum and am encountering some very strange problems. For my own records I've given this computer the …
... them! I was using a new keyboard membrane (supplied by RWAP ... of the same type of new membrane, all with the same ... the top half of a Spectrum case, balanced that above the ... surrounded by different equipment (TV, power supply, etc.). Nevertheless, it strikes me ...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 …
... Power Supply No 1 the " severely broken ZX Spectrum or possibly a ZX81 Power Supply ... it back together in a new Maplin plastic box so that ...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 …
... which signals have a private power supply and therefore a private "ground ... signal cables. This is a new , unknown situation . no-one ... drives with a "differing" power supply connector . But I agree ... no problems with a 48k Spectrum . Of course this "independent ...Composite video ghost image on ZX Spectrum 128K +2Hi, I have a ghost image on the composite video out on my ZX Spectrum 128K +2 and have run out of ideas of what could be wrong. Does anybody have a…
... I replaced it with a new ZTX651. I also replaced electrolytic ... supply is +/-10% for the 16k/48k machines (Ref: ZX Spectrum ... for the TEA2000 gives the supply voltage range as 10.8V ... the power supply schematic) and R54 (shown as 1K on the power supply schematic ...Purchasing Advice for an ignorant AmericanHello, I am a retro computer enthusiast who lives in the United States. I am currently looking into importing a model from the UK, and would like whi…
... made.
[*] ZX Spectrum+ - Sinclair produced a new case with a different ... is the ZX Spectrum 48k machine in the new case with the ... machines used 9V DC (nominal) power supply units. The 16k, 48k and ...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 …
... and moved. Having sorted its new position out , next the mica ... and were originally used on Spectrum regulators in the 1980s are ... brought back into "front line" Spectrum service . I like all the ... the case like the female power supply plug in port on the ...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 …
... seller's generically "slightly faulty" Spectrum ? Well I think I ... pretty typical Ebay (slightly faulty) Spectrum purchase? .I am not ... case for using the relatively new switching regulators . I suppose ... you can get a Chinese power supply with one of these in ...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 new MASTER!) .
I confused a 3 hole (Spectrum + power supply) with ... a 4 hole (Spectrum 128 Toastrack power supply)
new MASTER Toastrack power supply to copy from (if ...
