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Issue 2 issue (...)Just acquired an issue 2 Spectrum 48 K, selled as working board, not working keyboard. Before testing it with a psu I opened the case and discovered …
... that, related to ula 5c112 timing problems, speaks about of a ... -
+2a Keyboard IssuesMy keyboard sometimes inputs 2 keys at once when I press a key. Sometimes it laggs behind the inputs. Is it possible to fix this by a e.g. cleaning o…
My keyboard sometimes inputs 2 keys at once when I press a key.
Sometimes it laggs behind the inputs.
Is it possible to fix this by a e.g. cleaning or will I have to live with that / replace the keyboard membrane? -
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…
... number of differences between the 2a 3+ 128s and the rest ... -
Flash based rom replacement board for +2A/+3I'm sure I already started a thread about this, but I can't find it... Anyway, this post's to say that I've just sent off the order for the printed …
I'm sure I already started a thread about this, but I can't find it...
Anyway, this post's to say that I've just sent off the order for the printed circuit boards, so I should be in a position to be building some in a fortnight or so :D
... -
+3 assembler questionI was wondering if anyone could give any suggestions as to how to get this bit of code working on the +2A/+3 in 128k mode. It works on the +128k/+2 i…
... of code working on the +2A/+3 in 128k mode. It ... /128k mode, and on the +2A/+3 in 48k mode, but ... crashes the +2A/+3 in 128k mode. When ... -
Games you can walk through...In the thread: [URL]http://www.worldofspectrum.org/forums/showthread.php?t=30506&page=2[/URL] the topic drifts onto games such as Airwulf or Roboco…
... to my skill, intellect, and timing, but the sad truth is ... -
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…
... RAM banking feature of the +2A / +3.
Port 0x1FFD ... -
Using Interface II joystick in kempston-only gamesHi everyone! It's me again, bothering you with new crazy ideas :) I have recently acquired an Amstrad +2A Speccy with a joystick and built-in Interf…
... have recently acquired an Amstrad +2A Speccy with a joystick and ... -
Loss of innocenceI suppose my ZX Spectrum era lasted longer than most (although not sure longer than most of you on here). I received my first Speccy back in '83, and…
... upgraded quite late to a +2A in 1988.
The ... -
Romsif I wanted to replace the roms on a speccy, what equipment would I need and what chips, for example let's say I wanted to replace my +2a roms with t…
if I wanted to replace the roms on a speccy, what equipment would I need and what chips, for example let's say I wanted to replace my +2a roms with the SE rom?
or could someone point me in the right direction? -
Chuck your speccy through the window momentsInspired by my recent playthrough of Bully on the Wii. I completed a mission first try and then the game crashed. I then failed to do this mission fo…
... the end of Dizzy mis-timing the jump over the collapsing ... -
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…
... which work ok and some +2a's which also work fine ... -
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…
... specific to 128K and +2A with the necessary electronics ... 75ohm
+2A
RGB: 1.67Vpp 75 ... />
Using my +2A with Scart cable and SCART ... composite sync signal from +2A is not strong enough? ... are different between 128K and +2A.
I ... -
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…
... should be set for non- +2A/+3 spectrums.
[b ... -
Beastie FeastieThis game is only compatible with the +2A/+2B models, and it also only seems to work in 128k mode.
This game is only compatible with the +2A/+2B models, and it also only seems to work in 128k mode. -
Dicky DuckThis game by Beyker Soft is exclusive for +2A, +2B and +3 models, in 128k mode.
This game by Beyker Soft is exclusive for +2A, +2B and +3 models, in 128k mode. -
Hypersports, help!I suddenly felt like playing this great game, so I loaded in my +2A, but...I cant get past the 3rd level! The thing is that I dont remember when I h…
... , so I loaded in my +2A, but...I cant get past ... -
TR-DOS and DIVIDE emulationSome ZX emulators ([B]SPIN, FUSE, SPECEMU, SPECTACULATOR[/B]) contain configuration menu with possibility select ZX Spectrum model and interfaces. Bu…
... model (ZX48/128/+2). On +2A and +3 is it impossible ... -
Schematic ErrorThere appears to be an error in the Schematic for the 128k +2A and +3 the error is present in both the redrawn TIF version and the original drawing …
... the Schematic for the 128k +2A and +3
the ... -
128kefrom the scratchpad for the 128ke "Finally, reading from a non-existing port (eg 0xff) will give the screen/attribute bytes as it does on the 48K/12…
... can be achieved on a +2A using a small hardware modification ... -
Popeye, QBert, Locomotion and Gyruss PrototypesHello. OK, there are prototypes of Popeye, QBert, Locomotion and Gyruss out there which were released as Interface2 Cartridges only and not many of …
... code that means only 128k +2A (black) and +3 can be ... can load it into your +2A/+3 ZX Spectrum.
+2a doesn't load anymorea machine i got on ebay a couple months back, always had the odd game that wouldn't load, but now it seems to have stopped working alltogether. soun…
a machine i got on ebay a couple months back, always had the odd game that wouldn't load, but now it seems to have stopped working alltogether.
sounds fine, datacorder heads seem clean, but i get no [I]program:[/I]come up at the start, then ...Spectrum 128K RS232 to PC serial cableIf you have read some of my recent posts then you will know that I am eager to link my Spectrum +3 to a PC. This will be done by wiring a standard PC…
... from page 322 of my +2A manual looks incorrect. I shall ...Will +2 Powersupply work on +3 speccy?I've just ordered a +3 Spectrum without the power supply. I have a +2 (not +2a) power supply and wondered if this would be ok to use with my new +3?
I've just ordered a +3 Spectrum without the power supply. I have a +2 (not +2a) power supply and wondered if this would be ok to use with my new +3?+2A PSU test helpIs it possible to test a PSU to see if it is dead any other way than plugging into the computer and the light not coming on/no power? I'd like to fi…
Is it possible to test a PSU to see if it is dead any other way than plugging into the computer and the light not coming on/no power?
I'd like to find put whether the PSU is in working order, or if it's the circuit board that is knackered.
VIC 20 on the SpectrumThe original "20 Commodes" program released for CSSCGC 2008 has been improved and now has its own entry in WoS. The improved code has been sitting on…
... 8K RAM and cartridge extensions (+2A/+3 only)
3) VIC ...FRINGE in the ZX SpectrumJust picked it from the "other side"... ;) [list] [*][url=http://www.atc.us.es/~rodriguj/fringe128.tap]For 128K toastrack/+2 grey[/url] [*][url=http:…
... .es/~rodriguj/fringe_2a.tap]For +2A (black case)/+3[/url][/list ...DIVIDE PLUS - ZX bus protectorI make new ZX BUS PROTECTOR for use with DIVIDE PLUS interface. This is very small "convertor" for connection to new ZX BUS connector. PCB contain on…
... ROMOE signals on ZX 128/+2A/+3 is disconnect = external device ... mode on ZX Spectrum 128+2A/+2B/+3 with DIVIDE/DIVIDE ...Floating bus on 128K models[b]Background:[/b] i need run code with interrupt enabled but i need use stack instruction to maximize performance in copy/shift/mirror routines. dur…
... present on all of 128, 2A, 3+ machines ?
2) from ...
