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PSU differences for the n00bHi all, im the [B]n00b[/B] in question lol Sorry folks in advance for this cos its prolly been asked a million gazillion times! Im currently in po…
... are a number of differences between the 2a 3+ 128s and the ... -
Memory mapping: Pentagon compatibility?I'm writing something that will rely heavily on the Spectrum's ability to switch screen buffers in hardware (port 0x7FFD). The original Spectrum 128K…
... have to consider the contention differences between the early 128s and ... -
Help me understand ZX RGB signal (long)This will be a long post so please bear with me and most importantly help me. I have a 128K+ and +2A that I'm trying to get working with my 15kHz RG…
There are subtle differences between the signal generated by a 128/+2 and +2a/+3.
This document by Paul Farrow seems to explain them:
[url]http://mts.speccy.cz/doc/128_rgb.pdf[/url] -
Help me understand ZX RGB signal (long)This will be a long post so please bear with me and most importantly help me. I have a 128K+ and +2A that I'm trying to get working with my 15kHz RG…
... yesterday when playing with my +2A and RGB to HDMI converter ... . I have two different +2A SCART cables from two different ... cables to identify the specific differences. Maybe this will shed some ... source as the non-working +2A cable. Hopefully I can fix ... -
+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…
...
1) There are two +2A/B circuit boards (ISSUE 1 ... changed the name from the +2A to +2B, however both ... ISSUE 2 of the +2A/B board has the ... U]no[/U] +2A built with the "+2A/+3" circuit of ... are many differences between the schematic from the "+2A +3" diagram ... -
Connecting a ZX Interface 1 to a +2AI have a customer with a Spectrum +2A computer - he has a working ZX Interface 1 and microdrive which has been tested with his +48 machine. However,…
... +2A/B or +3 because on these machines there are differences compared ... -
Connecting a ZX Interface 1 to a +2AI have a customer with a Spectrum +2A computer - he has a working ZX Interface 1 and microdrive which has been tested with his +48 machine. However,…
... +2A/B or +3 because on these machines there are differences compared ... have done right with the +2A was to ensure existing Sinclair ... -
+2 Grey external tape modIve had a search through previous posts and besides mclouds mod for the +2a I couldnt find anything pertaining to the grey, only reason im posting is…
... closer inspection is for a +2A. IIRC the +2 is rather ... both up and check the differences? The toastrack must have a ... -
+2 Grey external tape modIve had a search through previous posts and besides mclouds mod for the +2a I couldnt find anything pertaining to the grey, only reason im posting is…
there is differences, heres my grey tape connection< ... ]
and heres mclouds +2a
[IMG]http://www.zxprojects ... -
contended memory...so memory contention on the toastrack and the grey +2 is in the wrong place compared to the documentation, yet the +2a/b and +3 it is in the correct …
... banks non contended, and +2A/B/3 have banks 0 ... ) run correctly on a +2a/b/3 but don't ... toastrack/+2 because of the differences in contended memory.
... 128ke scratchpad to make the +2a into an 'ideal' spectrum, ... the choice of the +2a was in particular due to ... -
+2 grey composite modWithout digging out the schematics, is it possible to do the composite mod like the 48k on these?
[QUOTE=TMX;522674]+2A is the black one, +2B is black too [...] ZX+3 and +2A/+2B have the same ULA (square, flat, surface mounted).[/QUOTE]
So are there any differences between the +2A and +2B? -
+2 grey composite modWithout digging out the schematics, is it possible to do the composite mod like the 48k on these?
[QUOTE=Mousey;522677]So are there any differences between the +2A and +2B?[/QUOTE]
"Ordinary" ;) Spectrum user can assume +2A=+2B. -
Spectrum +2B HelpHello there my fellow WoS'ers Recently I bought a Spectrum +2 from eBay, it turns out to be a +2B from China, according to the plastics. The unit f…
... been me researching the +2A/B and +3 differences :)
[QUOTE ... -
Amstrad Toast Rack?Hello there my fellow WoS'ers Recently I have been very lucky with my brother giving me a Sinclair Spectrum 128K+ (Toast Rack), it needed a little a…
... />
There will be no differences in the ULAs, and are ... what they did with the +2A, a total redesign.
Definitive list of games incompatible with +2A/+3 and of compatible versions (if any)I am trying to compile the definitive list of games which are incompatible with the +2A and the +3 and of their compatible versions, if they are pres…
... I have tested on the +2A work correctly. Same goes for ... modern games usually take those differences into consideration when doing multicolour ...Distinguishing between models?I'm running the risk of being pointed to the faq here, so sorry in advance. Something I'm trying out requires that the program can distinguish betwe…
... ,+2
>+2A,+3
48 from ... paging variable, or the differences in some of the rom ... users can install to +2A/+3 models original roms from ... , fast = ZX+2A/+3)
3) if +2A/+3 models is ... detected. (or it's +2A with external FDD interface)Unboxing my old SpeccysToday I dug out my old collection of computers from the bygone age. My ZX81 fired up fine, but it looks like the keyboard membrane is goosed, as on…
... it home. There are any differences between the way of loading ... car stereos - the +2 (and +2A/B) generally requires less amplification ...Loading frustrationHi all I'm quite new to the spectrum so I thought I'd try and garner the thoughts of yourselves in order to solve my current problem! I have a spec…
... digress - there are numerous other differences between the ROMs]
2A/+3 compatibility thread.
2A - simply, it's just like ...Pac-man emulator machine typeSince this game works in +2A models, wouldnt it be better to list it as 128k and not 128 + 3? Cheers!
... important thing, to define the differences between each machine type...I ... has special loads for the +2A models...and Pacman emulator works ... perfectly on the +2A...nevertheless, Corsarios is listed as ... can be used in +2A as +3/+2A? So then we can ...Spy Hunter - IssuesI have been playing this good old game from US Gold, and found myself with some questions... I have realized that in the rzx. files, the helicopter …
... wonder if there are more differences...
Also, remember that ... Erbe release in a real +2A.
It is indeed an ...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 …
... do some modifications to the +2A board. Is easier to get ... really, there may be minor differences (ROM versions and some modifications ... /> 4) It seems an unmodified +2A. You could use as is ... or flash card to your +2A. As explained before, with +3e ...Odd +2 / +2A cassette differencesUnless its just me... The cassette player keys, the icons are on the keys themselves on a grey +2 On a black +2A the keys are blank and the icons a…
... maybe not [I]great[/I] differences as they don't affect ... call them significant.
The +2A has distorted AY sound and ...Spectrum +2A vs the Spanish oneThere must be some information out there, but I don?t seem to be able to find it. I just received a Spanish +2A and I wonder what differences the tw…
... received a Spanish +2A and I wonder what differences the two models ... ROM, I reckon? Any other differences? Is the Spanish better or ... worse than the normal +2A?[/QUOTE]
I would ...Why do games work using USR0?I'm trying to get Terramex to work from disk. In the [url=http://www.worldofspectrum.org/forums/showthread.php?t=34332]thread about +2A/+3 incompatib…
... what is USR0, and the differences between 48k and USR0 mode ... mode.
Maybe the +2A/+3 interrupts do something nasty ...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…
... the +2 and +2a/b have more differences than just the ROM ...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…
... the +2 and +2a/b have more differences than just the ROM ...Strange behavior of program compiled with HiSoft BASICA while ago I experimented with HiSoft BASIC 128 (1.2) and compiled [URL="http://www.worldofspectrum.org/forums/showpost.php?p=683349&postcount=140"]…
... 0) when running +2A emulation, whereas a real +2A would most probably ... place for there to be differences between the two versions, which ... language editions of the Spectrum +2A/+3. There were two versions ... (the ROM in Spectrum +2A machines was mainly version 4 ...+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…
... ]
For the differences between the +2A/+3 sound circuit and ...+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…
[QUOTE=guesser;693013]For the differences between the +2A/+3 sound circuit and ...'Mutants' 128 musicI just fired this up and had forgotten just how good the 128k music is on this. It's by Fred Gray and it a corker of a tune and goes on for a good fe…
... a +2/+2A/+3 then probably not as slight differences in the ...
