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Repairing a faulty 48K issue 2.I am investigating one of a pair of non-working issue 2 48K Spectrums that have been sitting in a cupboard untouched for quite a few years. I haven…
... /> I see that in the Issue 4 and up, /RAS is delayed ... a CPU access. In an Issue 2 Spectrum, it looks to ... well in the Issue 6A, but not the Issue 2. In the ... Issue 2 the display is ... -
BeginnerIm having a go at fixing a spectrum which has been in the loft for 20 years and would like some advice please.... I have downloaded the 'spectrum se…
... 4116 might work in an Issue 4 or later Spectrum, but quite ... earlier one. Spectrums prior to Issue 4 barely allow enough time for ... removing the capacitors. On the Issue 2 boards I've got ... (probably corrected on the Issue 3, but I haven't ... -
BeginnerIm having a go at fixing a spectrum which has been in the loft for 20 years and would like some advice please.... I have downloaded the 'spectrum se…
... 4116 might work in an Issue 4 or later Spectrum, but ... one. Spectrums prior to Issue 4 barely allow enough time for ... the capacitors. On the Issue 2 boards I've got ... (probably corrected on the Issue 3, but I haven' ... />
Mine is an issue 3 board so it looks ... -
Three faulty machines - help!I have three Spectrums and all of them have suddenly collapsed and I can?t figure out what?s wrong. New here.... I own three Speccies but all of a …
... this the Spectrum+ with an Issue 4 or later PCB? If so ... -
4116 SRAM replacement (and ULA timings).As mentioned in another thread, I have spent quite a lot of time experimenting with different circuits and components for using a static RAM IC to re…
... in any that is an issue 4 or newer. It does not ... work reliably in an issue 3 Spectrum and does not ... circuit introduces too much delay. Issue 4 and above Spectrums allow longer ... make it work in an issue 3 by adjusting the component ... -
4116 SRAM replacement (and ULA timings).As mentioned in another thread, I have spent quite a lot of time experimenting with different circuits and components for using a static RAM IC to re…
... important for Spectrums prior to issue 4 that don't have the ... circuit works perfectly in an issue 4 and above. The ULA access ... 't depend on the Spectrum issue number.
[QUOTE=RetroTechie ... onto /RAS signal in older issue ZX Spectrums (see below the ... -
+3 Games in shopsI was thinking today, when I was a kid back in the late 80s, how come I never used to see Spectrum +3 games in the shops? Were they mail order only o…
... going into the 90s (the Issue 4 motherboard was designed in 1990 ... -
+3 Games in shopsI was thinking today, when I was a kid back in the late 80s, how come I never used to see Spectrum +3 games in the shops? Were they mail order only o…
... going into the 90s (the Issue 4 motherboard was designed in 1990 ... -
ROM switch on NMIHello! Please, help me or point in the right direction. I am building a project for 48k spectrum which must activate its rom (actually static ram) …
... letter from Mr Giblin in issue 4 here [url]http://www.users ... -
Spectrum 48k Issue 4S?I just recieved a Spectrum 48K that had the bottom case from an issue 1 and the top half from a later issue, and the main board is 1983 Issue 4S. I a…
A 4S issue is a standard issue 4 produced by Samsung (thus the S). Nothing more nothing less, these too break down as easily as the rest... its not rare either. -
Mary Celeste[url]http://www.worldofspectrum.org/infoseekid.cgi?id=0026341[/url] Inspection of the BASIC block revealed the following information: [I]16/48Magn…
[QUOTE=Alessandro Grussu;632988]The original appears not to be even listed in the archive.[/QUOTE]
May be because the original was only available on the 16/48 Magazine tape issue 4 (albeit the original language was English). -
Mary Celeste[url]http://www.worldofspectrum.org/infoseekid.cgi?id=0026341[/url] Inspection of the BASIC block revealed the following information: [I]16/48Magn…
... the 16/48 Magazine tape issue 4 (albeit the original language was ... -
Mary Celeste[url]http://www.worldofspectrum.org/infoseekid.cgi?id=0026341[/url] Inspection of the BASIC block revealed the following information: [I]16/48Magn…
... the 16/48 Magazine tape issue 4 (albeit the original language was ... -
Mary Celeste[url]http://www.worldofspectrum.org/infoseekid.cgi?id=0026341[/url] Inspection of the BASIC block revealed the following information: [I]16/48Magn…
... the 16/48 Magazine tape issue 4 (albeit the original language was ... -
Issue 4S Schematics and DC-DC circuitA while ago I bought a Spectrum 4S that had problems tuning. I removed the RF tuner as I was not going to use it and did the composite mod. It worked…
... everything where connected. Still the issue 4 schematic is of some help ... -
Issue 4S Schematics and DC-DC circuitA while ago I bought a Spectrum 4S that had problems tuning. I removed the RF tuner as I was not going to use it and did the composite mod. It worked…
... everything where connected. Still the issue 4 schematic is of some help ... -
Enigma Tape MagazinesHi folks, A while ago Hamish Rust loaned me a number of ETM tapes: http://www.worldofspectrum.org/infoseekpub.cgi?regexp=^Enigma+Software+Developme…
... for 128k/+2/+3. From issue 3 onwards are fully 48k ... support is indeed introduced with issue 5.
Also the ... price for each issue on tape is ?1.99 ... 's address), It also says "issue 4 only on +3 disk for ... 0:29 or between 4:12 and 4:20 of ETM6 :cry ... -
Some Sinclair things for sale...Hi, I want to sell some ZX Spectrum things (click on photos to see larger ones): - [b]FAULTY[/b] ZX Spectrum power supply. It overheats and the only…
... /th_IMG_0448.jpg[/img][/url]
Issue 1 with original ROM. ROM ... /th_IMG_0444.jpg[/img][/url]
Issue 4? with original ROM. ROM and ... -
ZX 48 issue 4S no s-video possible?No s-video on ZX 48 issue 4S possible? I have had this mod on my issue 4A. But this did not work with my 4S. On C65 is no chrominance signal. Here …
... it is similar to other issue 4 machines when I have compared ... -
ZX 48 issue 4S no s-video possible?No s-video on ZX 48 issue 4S possible? I have had this mod on my issue 4A. But this did not work with my 4S. On C65 is no chrominance signal. Here …
... it is similar to other issue 4 machines when I have compared ... -
DivIDE CompatabilityThe Spectrum is 30 show proved a valuable event for investigating issues with Spectrums which do not work with the DivIDE.... The ones I sell are ma…
... /> My experience is that the Issue 2 boards is sufficient to ... like poorly applied wallpaper... The issue 4 seems ok though. So does ... -
Average age of a Spectrum fanHi! I'm wondering what's the average age of us, readers of this forum. I'm 29 and started playing and programming on the Spectrum when I was 13 (infl…
... keyboards. They range from Issue 1 motherboards to Issue 4. I also managed ... -
Lighter: Better Than Raw[CENTER]So, [B](Burn The) Lighter's back[/B]! And don't ask me why I had to skip issue two at that point. [IMG]https://dl.dropbox.com/u/95941449/Bur…
By the way, does anyone want to see the TRD version of issue 4 in English? I know Gasman might be busy with porting it over, but I know you're gotta love the upcoming articles in the said release. :) -
Webpages on SpeccySo I'm bringing up the topic of the web-surfing via Spectranet, first covered by Moroz1999 in Burn the Lighter issue 4. If you still haven't read his…
[QUOTE=Crash Nicker;657334]...Burn the Lighter issue 4...[/QUOTE]
There's a new one out already? I thought no.3 came out just a few days ago??? -
Z80 new old stockHi. I found this on eBay but ... is there a way we could know they don't hav a faulty M1 line? [url]http://www.ebay.com/itm/Zilog-Z80-CPU-Z0840004PS…
... being the non-connected !M1 issue that marred the Zilog Z80 ... /> The CPU works perfectly with Issue 4 48k / and + as well as ... -
zx spectrum 128+2a/b questionsIv just purchased a 128+2 and have only one game for it lol (Super stunt man). A few question if anyone can help.. 1)I'd like to run games through …
... pcb says its a 1990 issue 4 by amstrad.
On screen ... -
zx spectrum 128+2a/b questionsIv just purchased a 128+2 and have only one game for it lol (Super stunt man). A few question if anyone can help.. 1)I'd like to run games through …
... have a photo of an ISSUE 2 populated as a + ... motherboard (Z70833) has an ISSUE 1 and ISSUE 2 (both (c) ... 2], then there's an ISSUE 4 board from 1990 which has ... no-one's found an ISSUE 3 board. It's ... range.
On the +2B ISSUE 4 board all the modifications from ... -
Italian MIA?[url]http://www.ebay.it/itm/Cassette-per-ZX-Spectrum-48k-16k-originali-SUPER-SINC-3-PEZZI-/251197421094?pt=Retrocomputer&hash=item3a7c887626[/url] …
... utility Il tastierista, published on issue 4 of Tutto Spectrum. (See Spectrumpedia ... -
The new Superfo cloneHi In the spanish forum speccy.org some guys and me have optimized the superfo clon to have less ICs. The actual design has 39 ICs versus the 45 ICs…
... devices):
[code]
+D (Issue 4)
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#E3#EB#F3 ... -
A few questions on what hardware to buy...Hello First post here. I never had a Spectrum as a kid, but a few of my friends had one. I used to love playing the games on them - I have very fo…
... but the final version, the ISSUE 4, is pretty close to perfect ...
