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Getting a DISCiPLE/+D to work on a +2A/+3?Does anyone know how compatible the two interfaces could be made with the +2A/+3? I remember that there were a couple of POKEs that could get a +D t…
... could be made with the +2A/+3?
I remember that ... +D to work on a +2A (they were listed on a ... to work properly on a +3...
Anyone have any ... -
ALLRAM MODE on +2A/+3[url]http://velesoft.speccy.cz/other/+3_allram.z80[/url] Load Z80 file in ZX emulator and write RUN+ENTER. This basic program can switch +2A/+3 betw…
[url]http://velesoft.speccy.cz/other/+3_allram.z80[/url]
Load Z80 file in ZX emulator and write RUN+ENTER.
This basic program can switch +2A/+3 between allram and 128 modes
In allram mode is rewritable ZX rom. -
Dangerous Allram Mode On +2a / +3ZX Spectrum 128+2A and +3 support allram feature on port 1FFD. On this ZX models is very dangerous set allram if is connect any interface with extern…
ZX Spectrum 128+2A and +3 support allram feature on port ... signals is without effect (ZX+2A/+3 can't disconnect ram) and ... -
+2A/+3 compatibility fixes thread!It might be a good idea to keep these fairly common +2A/+3 compatibility fixes (and requests) in a single thread for quick reference ;) Let's start …
... to keep these fairly common +2A/+3 compatibility fixes (and requests) in ... ,17
40 DATA 87,3,62,255,55
50 ... ://homepage.ntlworld.com/e.tinney/+3/Quadraz.tap[/url] -
Some ever noticed that +2A/+3 halts Z80 using WAIT?I mean: Anyone ever noticed that the +2A/+3 halts the Z80 using WAIT? All documentation I've read about contention state that the ULA halts the Z80 …
... : Anyone ever noticed that the +2A/+3 halts the Z80 using WAIT ... that, al least, the Spectrum +2A issue 1 (and I'm ... -
Test / comments wanted: new composite video output for +2A/+3I've been fiddling with the composite video mods for +2A and +3... with no luck. Because neither desings in [url=http://www.secarica.ro/html/zx_zone.…
... the composite video mods for +2A and +3... with no luck. Because ... . "Standard" composite video mods for +2A/+3 needs +12v, but mine needs ... -
RGB to VGA convertor for ZX128/+2/+2A/+3David Luftner release source code (VHDL) of SCANDOUBLER for ZX128/ZX128+2/+2A/+3: [url]http://velesoft.speccy.cz/other/scandoubler-for-zx128_fixed_by…
... SCANDOUBLER for ZX128/ZX128+2/+2A/+3:
[url]http://velesoft.speccy ... -
ZX80 Games on your +2A/+3Hi all. Was just having a talk on irc about Paul Farrow's ZX80 games and his emulator for 128k Spectrums and IF2 and since I remembered I got them r…
... them running on a plain +2A a while back I put ... games. You will need a +2A/+3 to get these running. Hope ... -
Possible design fault in +2A/+3 power pack. Fix?It's the second time a +3 power pack ceases to work when I make a short while using the scope to diagnose a +2A/+3 computer. And it's the second tim…
... 's the second time a +3 power pack ceases to work ... the scope to diagnose a +2A/+3 computer.
And it ... /> Then, I wondered why the 3.15A fuse didn't work ... ://hardware.speccy.org/hardware/Fuente+3/esquemas.html[/url]
128K+2A/+3 RAM layoutDoes anybody know how physical RAM is mapped to ZX 128k+2a/+3 address space ? There are four 64Kx4 chips IC4-IC7. IC4-IC5 seems to be contended (vide…
... is mapped to ZX 128k+2a/+3 address space ?
There are ... to IC4-IC5 and 0-3 to IC6-IC7, but not ...+2A/+3 schematicsI have downloaded the +2A/+3 schematics and I was wondering what the history of the document is. I also have a pdf by Guesser 30/10/2010. That one …
I have downloaded the +2A/+3 schematics and I was wondering what the history of the document is. I also have a pdf by Guesser 30/10/2010. That one looks to have been drawn from scratch and its better to look at.+2A/+3 composite modHi, Anyone has experience doing a composite output mod for +2A/+3? (yes.. I also have a working RGB) A while ago I did one based on the instruction…
... a composite output mod for +2A/+3? (yes.. I also have a ... ://deadcoderssociety.net/pics/composite_ok.jpg"]3[/URL]. In addition to the ...New test for finding missing +2A/+3 ULA timing detailsHello, having added the +2A/+3 emulation recently, I want to make sure I got the ULA timing 100% right. We know when the contention pattern starts, …
... ,
having added the +2A/+3 emulation recently, I want to ... would really appreciate if some +2A/+3 owner would run the ptime ...PSU replacement for +2a/+3Hi, With the suitable connector does a PC power supply can be used to power a ZX+2a/+3 ? Thanks
Hi,
With the suitable connector does a PC power supply can be used to power a ZX+2a/+3 ?
ThanksShadow of the Unicorn loader for +2A / +3hi, i have tried to load SotU with the [url="http://www.worldofspectrum.org/infoseekid.cgi?id=0023000"]RAM loader from Fraser Ross[/url], which is l…
... should be contended on the +2A/+3, to my and [url="http ... load SotU on a real +2A/+3 using Ross' loader?
Does ... about contended ram pages on +2A/+3 is [in]correct?
Is ...Need help from people with a +2A/+3Started a topic [url="https://www.worldofspectrum.org/forums/discussion/55141/need-help-from-people-with-a-2a-3"]here[/url] to get a broader reach, b…
... -help-from-people-with-a-2a-3"]here[/url] to get a ... ULA/bus polling on a +2A/3, but if @chernandezba’s observation ...Need help from people with a 48K/128K/+2 (not +2A/+3)Scared ya, didn’t I? Well, this one is very simple and not as involved as [url="https://www.worldofspectrum.org/forums/discussion/55142/need-help-fro…
... -help-from-people-with-a-2a-3/p1"]this bag of horrors ...Need help from 48K/128K/+2 owners (not +2A/3)!It’s hard to target the right demographic, so I’m repeating my humble request here. Could you, given a few spare moments, test [url="https://www.w…
... -a-48k-128k-2-not-2a-3"][b]this[/b][/url] for ...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…
... which are incompatible with the +2A and the +3 and of ... unmodified +2A machines.
[b]1. Completely incompatible games ( ... 2. Compatible versions of otherwise incompatible games:[/b]
[ ... [/list]
[b]3. Other cases:[/b]
[list ...Detecting +3 or +2AIs it possible to detect whether your BASIC program is running on a +2A/+3 or a proper 128?
Is it possible to detect whether your BASIC program is running on a +2A/+3 or a proper 128?+2A / +3 Power SupplyOK, just started getting me new shed in order, plugged in my +3 and nothing happened.... Having read some of the other post's without finding an ans…
... in order, plugged in my +3 and nothing happened....
2A power supply will work on a +3, otherwise anyone ... to the pinout of the +3 power supply.
Cheers+2a , +3 Power supply wantedAnyone got a Power supply for a +2a or +3 for sale. If so let me know how much you want for it paypal only
Anyone got a Power supply for a +2a or +3 for sale.
If so let me know how much you want for it
paypal onlyROM versions for +2A/+2B/+3Exist any other original versions of +2A/+3 roms than this ? [url]http://www.zxspectrum.it/_P3.htm[/url] Where is used v4.0 and where v4.1 ? ZX Spec…
... other original versions of +2A/+3 roms than this ?
... ? ZX Spectrum +3 is older than +2A/B machines = ... .0 ? In ZX128+2A/B is used only ... />
Support +2A/B/+3 rom numeric KEYPAD as original ... ZX128 rom ?
Exist +3 rom disassembly ?
Spectrum +2a / +3 SCART LeadsEvening all, Over the past week or so I've tried two different Spectrum RGB SCART leads from two different Ebay sellers, on a Spectrum+2A and a Spec…
... sellers, on a Spectrum+2A and a Spectrum+3.
I ... tried the leads out using 3 different CRT TVs.
2A or +3), not one of the ...Connecting a CD/MP3 player to a +2/+2A/+3How do I connect a CD or MP3 player to a Spectrum +2, +2A or +3? I know it can be done, but how? Is it via the TAPE/SOUND socket at the back?
How do I connect a CD or MP3 player to a Spectrum +2, +2A or +3? I know it can be done, but how? Is it via the TAPE/SOUND socket at the back?+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…
... br /> 1) There are two +2A/B circuit boards (ISSUE 1 ... the name from the +2A to +2B, however both ... ISSUE 2 of the +2A/B board has the ... U] +2A built with the "+2A/+3" circuit of the +3 service manual ... from the "+2A +3" diagram from the +3 service manual and ...Working with DOS and Plus D disks on a +2A/+3Don't know if this will be of interest to anyone, but once in a while someone asks how to do it. Dominic Morris has given permission for WOS to distr…
... a +3 (and maybe a +2A?) if it has a 3 1/2 ... for ways of converting unprotected +3 DSKs to .MGT and since ... +D emulation when emulating a +3), the best hope we have ... a disciple connected to a +3 - I wrote a nice ... are the links to the 3 titles that were recently ...Wanted: Spectrum +2A/3 Power Supply (Working/Broken)Hello there my Fellow ZX'ers I am in need of your help and this time its in the form of a Spectrum +2A or +3 power-supply. Here's a +3 variant, the…
... the form of a Spectrum +2A or +3 power-supply.
Here's a +3 variant, the +2 differs only ... />
At the moment my +2A is running from a modified ... you have a Spectrum +2A or +3 power supply, working or not ...Anyone using an RGB SCART cable with a +2A/+3 and LCD TV?In [URL="http://www.worldofspectrum.org/forums/showthread.php?t=44697"]a recent thread[/URL], I mused: [quote]Can +2As be composite modded? If so, I…
... doing. I know that the +2A's RGB output can take ... anyone here use a +2A or +3 using an RGB SCART cable ... no sense in getting the +2A composite modded if it doesn ...
