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New tape releases - 128K only?As Jon's new Egg-Head game is 128K only, and splATTR has also evolved into a 128K only game - both due to memory constraints - I was wondering if the…
... think it's a loader issue as it happens whether you ... second instruction to LD A,$3B then it works perfectly.
Original Kempston interface on a +3Hello everyone, if i insert an original kempston interface in the extension port of a +3 should it work or not? I tried it and the machine didn't bo…
... /> My +3's board has "issue two" written on it, does ... or not? Is this the +3B version?Original Kempston interface on a +3Hello everyone, if i insert an original kempston interface in the extension port of a +3 should it work or not? I tried it and the machine didn't bo…
... ;My +3's board has "issue two" written on it, does ... not? >Is this the +3B version?[/QUOTE]
Is ... with +3 board is a issue 2 and I had to ...DivIDE+ and 128K HeatsinkI got my DivIDE+ yesterday and i tried it on a 48K+ at first, it worked marvelously on it, no problems at all. Today i desided to try it on my 128 H…
... worked was previously on an Issue 2 speccy with a ZTX313 ... 't mention that my 128 heatsink must be an early version ... due to timings in the heatsink's RAM (on some of ...Issue 1 ZX Spectrum for SaleBefore I go down the route of shoving this on ebay, I would like to offer fellow WoSsers the opportunity to express their interest in this item. It …
... admit it is an odd issue 1 - wonder if Downsway ... , the case misses the issue 1 hole, yet from ... appear to be an issue 1 case !!??m I ... wonder exactly how many issue 1 computers were issued - ... by the heatsink.
Even odder, this issue 1 motherboard ...+3 Audio hates me with a passionHihi Since nobody seemed to have a spare +3B board, I've been trying to replace the audio entirely, aiming for a speaker inside the machine Since p…
... before mods. +3A Amstrad Z70830 ISSUE 2 (c) 1987
3B in parallel equals 757.85 ...Buzzing SpectrumPicked up a Spectrum + (48k) today at a car boot, for 3 quid:-P On the plus side it does work, however it does buzz pretty bad. What normally causes …
... + machines generally were Issue 4S and newer (did Issue 4S ever show ... board got swapped for a 3B occasionally, but it was definitely ...Which Speccy sounds 'best'? ie, differences in AY outputDoes anyone know if there's any noticeable difference in the quality of the sound output on the Speccy models with an AY chip?i'm wondering if there'…
[QUOTE]The first issue Spectrum +3 is one to ... ?
I heard that +2B/+3B have corrected AY sound output ... , but I've never seen +3B on the bottom of spectrum ... 128k +3.
Is that +3B has 4.1 ROM and ...Which Speccy sounds 'best'? ie, differences in AY outputDoes anyone know if there's any noticeable difference in the quality of the sound output on the Speccy models with an AY chip?i'm wondering if there'…
... 'OK'. My friend told me +3b is the same as 4 ... way to avoid bad +3 issue.128k heat sink - ULA problems and a hintHello, I had two ZX Spectrum 128k with a similar behaviour. One item worked only a short time after switching on and then there were increasing RAM …
... heat from the regulator's heatsink is causing the plastic membrane ... the heatsinking on the standard issue 3+ 48K isn't brilliant ... , and is worse on an issue two board. Feeding the Spectrum ... around the heatsink? Whilst this wouldn't be an issue on a ...128k heat sink - ULA problems and a hintHello, I had two ZX Spectrum 128k with a similar behaviour. One item worked only a short time after switching on and then there were increasing RAM …
... />
It is true, the heatsink (coming off the regualtor) does ... heat away from the regulator heatsink with water(!#?) or just with ... heat from the regulator's heatsink is causing the plastic ... around the heatsink? Whilst this wouldn't be an issue on a ...Spectrum + keyboard issueMy Spectrum+ seems to have some trouble on Space Key. Sorry for all "seem" in the following text. But it's hard to understand if it's a real steady t…
... the keyboard from touching the heatsink (one actually does when you ... . It must be a grounding issue....Spectrum + keyboard issueMy Spectrum+ seems to have some trouble on Space Key. Sorry for all "seem" in the following text. But it's hard to understand if it's a real steady t…
... first time I found this issue was when I plugged my ... keyboard iron corresponding to the heatsink, clean the bus connector again ...Spectrum + keyboard issueMy Spectrum+ seems to have some trouble on Space Key. Sorry for all "seem" in the following text. But it's hard to understand if it's a real steady t…
... the keyboard from touching the heatsink (one actually does when you ... . It must be a grounding issue....[/QUOTE]
When building ...48k spectrum restarts by itselfFirst of all hello from a newb and thank you for your help. This site has already offered me a lot of insight. I have a 48k spectrum that will boot …
... without a re-start the issue seems to have been solved ... that is attached to the heatsink. Re-tinned its legs and ... the area that contacts the heatsink and indeed the area around ...need help with +3 sound mod..well my friend has been doing the mod.. and well informed me the info / instructions aren't 100% there.. basically the matrix of cap's / resisters i…
So an Issue 2 printed on board means it is the +3b?
Still that need the stereo fix , not?
I have now discovered that I have +3 issue 1 with sound problems and that no +3 outputs stereo out :)Which reset method on ZX 48K?What reset method is correct on issue 3b ZX 48K: One wire to R68 and one to C27 (Manual from ZX Spectrum +) or One wire to Pin 26 from CPU and one …
... to guess I would say issue 2 looks the most familiar ... /> However - For Issue 1 and Issue 2 machines, the heatsink was located down ... back. For later issues, the heatsink is more clearly visible, as ... regulator, to which the aluminium heatsink is attached).Determining +3 revisionI have two +3's and have only just got around to inspecting the insides to look for the known +3 sound "bug". The problem is that one machine appear…
... Z70830
+3 Issue 2 Z70830
+3B Z70835 ISSUE 1 (c)1988 ... /hardware.html[/url]
+3B I have never seen, but ... /> I'm think only +3 Issue 1 has distorted sound and ...Determining +3 revisionI have two +3's and have only just got around to inspecting the insides to look for the known +3 sound "bug". The problem is that one machine appear…
... /> +3 Issue 1 Z70830
+3 Issue 2 Z70830
+3B Issue 1 (don ... , but will find)
+3B I have never seen, but ... /> I'm think only +3 Issue 1 has distorted sound[/QUOTE ...Flicker fixer for ZX 48KHas anyone the schematics for the flicker fixer: [URL]http://8bit.yarek.pl/computer/zx.48/[/URL] Micky
... /> Pictures belong to a 4B issue board, but this will do ... /3B. Not sure if the traces are the same place in issue ... work OK with a 4A issue board and a SGS brand ... of the CPU (in a issue 2 PCB you may find ... actual mod tested on a issue 4A board.
[B ...Spectrum Serial Numbers Wanted!![b]This post updated Sept. 26, 2013[/b] As far as I know, the serial numbering system for the Spectrum has never been fully worked out. For the p…
... Supplement No.1 says regarding Issue 4A: "Two spare gates from ... happily working in my unmodified 3B board for many years now ...ZX Spectrum TV AppearancesThis thread is intended to be a long standing thread in which catalogued are Spectrum related Film TV appearances.
I wasn't going to say, as I'm not sure if it's 2 or 3. It's not a 1 though. My guess would be issue 2. No, wait, definitely an issue 3; it doesn't have that extra wonky bit of heatsink.Spectrum hangs upWhat might be problem when my ZX Spectrum 48K (rubber keys) hangs up after few minutes play? It had memory problems but i changed (or an expert did i…
... be an overheating (defective) ULA issue. I had one of these ... ULA to test, install a heatsink on yours (or blow a ...Speccy repairs?I've finally got round to testing all the various Spectrums that I seem to have accumulated over the years and discovered that "my" two machines (i.e…
... one which might be an Issue 1 machine... I'm ... just grey on an Issue 1 rather than the ... guess it's not an Issue 1.
... the main board. My issue 3 used to have ... issue 1 (and maybe 2). If you can see the heatsink ... is certainly not an issue 1, as far as ...Help and Advice with DivIDE PlusHi Guys, Really struggling to get any reliable actiivty with my DivIDE Plus and am looking for some pointers. I am trying to get it to work with on…
... .
As for an incompatibility issue.... personally i only encountered incompatibility ... Divide Plus on a 128k heatsink model which i solved by ...+2A/+2B/+3/+3B researchdoing my redrawing/correcting of the +3 schematic I'm uncovering lots of oddities in the service manuals. I am trying to work out what really exists…
... B circuit boards (ISSUE 1 and ISSUE 2 both number Z70833 ... 2B, however both ISSUE 1 and ISSUE 2 circuit boards bear ... br />
3) Both ISSUE 1 and ISSUE 2 of the +2A ... as found in the "+2B/+3B" diagram of the +3 ... Do you have an ISSUE 1 or ISSUE 3 motherboard for ...PC trouble (again!)My PC is in a bit of a state at the moment. It all started about a week ago. For a long while now, the fan on my graphics card has made a loud whirin…
... new thermal paste between the heatsink and the CPU. But this ... was no virus or spyware issue and it still looks like ... the purpose of diagnosing the issue it would help.
issue.+2A/+2B/+3/+3B researchdoing my redrawing/correcting of the +3 schematic I'm uncovering lots of oddities in the service manuals. I am trying to work out what really exists…
... /> I now have photos of ISSUE 1, 2, and 4 of ... have an example of the ISSUE 3 too if anyone has ... photos of both the ISSUE 1 and ISSUE 2 board from the ... at the possibility of an ISSUE 3, again I'd like ... I'm missing is a +3B motherboard. I wand to know ...PC trouble (again!)My PC is in a bit of a state at the moment. It all started about a week ago. For a long while now, the fan on my graphics card has made a loud whirin…
... new thermal paste between the heatsink and the CPU. But this ... was no virus or spyware issue and it still looks like ... the purpose of diagnosing the issue it would help.
issue.[/QUOTE]
I downloaded ...+2A/+2B/+3/+3B researchdoing my redrawing/correcting of the +3 schematic I'm uncovering lots of oddities in the service manuals. I am trying to work out what really exists…
... ? (e.g. +2A, +2B, +3, +3B?) and what country of origin ... />
4) what is the issue number of your motherboard?
