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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 …
... even banks non contended, and +2A/B/3 have banks 0-3 ... the ULA as in the +2A/B/3 models, so you can ... robocop) run correctly on a +2a/b/3 but don't (issues ... 128ke scratchpad to make the +2a into an 'ideal' spectrum, ... the choice of the +2a was in particular due to ... -
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 …
... to the documentation, yet the +2a/b and +3 it is in ... +2 to match the the +2a/b and +3?[/QUOTE]
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 …
So the question for games not running properly is not that the CPU contention timing is different, but that contention is applied differently to memory banks on the toastrack/+2 and the +2a/b/3.
Which runs the most games?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 …
... the toastrack/+2 and the +2a/b/3.
Which runs ...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 …
... the toastrack/+2 and the +2a/b/3.
Which runs ...When did Spectrum production cease?I'm sure this has been discussed before, but I couldn't find any threads. When did Amstrad stop production of the Spectrum? The magazines reported …
hmmm I can smell an article coming on with all these +3/2a/b questionsWhen did Spectrum production cease?I'm sure this has been discussed before, but I couldn't find any threads. When did Amstrad stop production of the Spectrum? The magazines reported …
[QUOTE=BiNMaN;509296]hmmm I can smell an article coming on with all these +3/2a/b questions[/QUOTE]
Haha mate, you got me ;)DivIDE AvailabilityMorning All, Sorry if this is posted in the wrong place but not quite sure what sub-forum cover's it ? Is anyone still making and selling DivIDE's …
... the power socket on the +2A/B/3 is closed to the ...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 …
... even banks non contended, and +2A/B/3 have banks 0-3 ... the ULA as in the +2A/B/3 models, so you can ...Spectrum +2A Unknown ModificationsHello there my fellow ZX'ers recently a good friend of mine gave me a Sinclair +2A Issue 1 - alas it doesn't fully boot - some times it manages to g…
... mine gave me a Sinclair +2A Issue 1 - alas it doesn ... of the Specrtum +2A
[B][I]Here are some ... more images[/I][/B]
(click for larger ... on my board, issue 1 +2aZ80 Edge Connectors - ProjectsHello there my fellow Spectrum-mites I am looking to source a few of these connectors - while I could just rework some old ISA socket for proto's I …
... /> i.e.
my +2A has stock +2 ROM's ... off the back of a +2A/B or +3 - possibly with a ...DivIDE+ and the 48k SpeccyI've 3 48k speccies of various revisions and none of them are working with my DivIDE+ yet all my 128's do, yet I'm sure when I first had it I'm sure …
I'm thinking the m2 as well, as the DivIDE is fine on the toastrack, grey. +2a/b and +3
mind you wouldn't hurt to format it as well, time to solder in a spare z80 as wellZ80 Edge Connectors - ProjectsHello there my fellow Spectrum-mites I am looking to source a few of these connectors - while I could just rework some old ISA socket for proto's I …
... /> i.e.
my +2A has stock +2 ROM's ... off the back of a +2A/B or +3 - possibly with a ...heatsink on the grey+2anyone ever modded one to run without the heatsink? I know some have on the 48k's but I wouldn't mind removing it from one of mine. If so, any tips …
... space
and the +2a/b/3 doesn't have one ...my rather spiffing +2Thanks to Macc I have an immculate +2, only problem is I daren't use it!! [IMG]http://a7.sphotos.ak.fbcdn.net/hphotos-ak-snc6/190658_206803459336782…
... I tended to use my +2a a lot (I do have ... rom, bit like you're +2a/b/3 so I can have ...heatsink on the grey+2anyone ever modded one to run without the heatsink? I know some have on the 48k's but I wouldn't mind removing it from one of mine. If so, any tips …
... />
Well my friend, the +2A/B and +3 Spectrums have an ... you could power up your +2A/B and +3 with a slightly ...heatsink on the grey+2anyone ever modded one to run without the heatsink? I know some have on the 48k's but I wouldn't mind removing it from one of mine. If so, any tips …
[QUOTE=Zetr0;518671]However if you really wanted to you could power up your +2A/B and +3 with a slightly modified AT/ATX PC power supply.[/QUOTE]
like me :)
It also means you have power for an external floppy drive and hard drivesZX Spectrum +3 Query...Hi all, As common, I brought down my Spectrum from the attic the other day to have another stab at getting it running. I knew from the past it was a…
... I am not mistaken, the +2A/B and the +3 only have ...ZX Spectrum +3 Query...Hi all, As common, I brought down my Spectrum from the attic the other day to have another stab at getting it running. I knew from the past it was a…
... I am not mistaken, the +2A/B and the +3 only have ...ZX Spectrum +3 Query...Hi all, As common, I brought down my Spectrum from the attic the other day to have another stab at getting it running. I knew from the past it was a…
... connectors (DINS) for the Specky +2A/B +3
anyone here ...heatsink on the grey+2anyone ever modded one to run without the heatsink? I know some have on the 48k's but I wouldn't mind removing it from one of mine. If so, any tips …
[QUOTE=Zetr0;518671] if you really wanted to you could power up your +2A/B and +3 with a slightly modified AT/ATX PC power supply.[/QUOTE]
...or a slightly modified Amiga PSU.+2 grey composite modWithout digging out the schematics, is it possible to do the composite mod like the 48k on these?
... />
P.S. -->[b]BiNMaN[/b]: ZX+2A/B have analogue RGB signals ...+2A / +2B / +3 Power Supply QuestionIf I'm going to put a switch in the power lines of a +2B, do I need to switch the +5V, +12V and -12V all off to make it safe to remove peripherals, o…
... doubled... but please [b]keep in mind[/b] for the same reason ... [b]GND are doubled too[/b] - [b]pin 6[/b ... ] and the "[b]shield[/b]" of the ... their own PSUs for ZX+2A/B,+3 connecting ground only to ...+2 grey composite modWithout digging out the schematics, is it possible to do the composite mod like the 48k on these?
... case back[/QUOTE]
[B]AWESOME, just gotta love brute ... force![/B]
I redesigned a ... TV Scart.
[B]Paul Farrow[/B], put an excellent document ... I believe that the 128+2a/b and +3 are almost peritel ...+2 grey composite modWithout digging out the schematics, is it possible to do the composite mod like the 48k on these?
[QUOTE=Zetr0;522534]I believe that the 128+2a/b and +3 are the peritel SCART standard[/QUOTE]
Well, it's not quite the SCART/PERITEL standard.+2 grey composite modWithout digging out the schematics, is it possible to do the composite mod like the 48k on these?
-->[b]Zetr0[/b]: Excause me, i edited my ... ]I believe that the 128+2a/b and +3 are the peritel ... 0.7V p-p, ZX+2A/B,+3 have 1,67V p ...+2 grey composite modWithout digging out the schematics, is it possible to do the composite mod like the 48k on these?
... ;522733]if all +2A chassis contained a +2A motherboard then this would ... plug in expansion for the +2A/B... This was Amstrad's plan ...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…
likely damage caused to +2 by too highly rated supplyHi. did have a quick search but couldn't see an answer. I've been offered a +2 which the previous owner damaged by connecting too high a power supply…
... schema's
[B]The Spectrum 128 +2 (Grey ... model)[/B]
Should the system not ... />
[B]The Spectrum 128 +2A/B (Black model)[/B]
This will ... for these, and thats other +2A/B spectrums =(
...
