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WANTED: tape replacement for +2?Any tape replacement possible for a +2? My +2 works wonderfully but the incorporated datacorder is simply worn out and won't load ANYTHING. Dirty sig…
... 16K of RAM, and the processor with the upper 32K RAM and 16K ... -
My own Home Computer It's true. My company are planning to build a new Home Computer. It will use a Z80 CPU running at 6mhz, 128k Ram and will run all Spectrum and ZX81 …
... hence contain RAM 5, and RAM 4,6 ... br />
EPROM 16kb, (4x) VRAM 64kb, ( ... br /> | |
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| EVIDEO RAM |
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TAP files for the TS 2068Hi, just recently bought a TS 2068 and found "Taper" on the web. Downloaded it and began to use it only to discover that it would not open TS 2068 fi…
... stack or UDGs are in upper memory, or assumes BASIC ... and the "OS RAM Routines" in lower RAM below the BASIC ... started much later in RAM, and why the maximum ... of free RAM was 38652 bytes, much ... less than Spectrum's free RAM.
Finding ... -
ObituaryYesterday my spectrum died :( Over 7 years of faithful service its finally gone to Silicon heaven. Rest in peace spectrum 48k+ Born sometime in 198…
Still, it *might* be that there's a power failure someplace... who knows, perhaps CPU, ULA, ROM and RAM are ok.
I suggest you don't dispose of it in ANY case, since it might come in handy for spares! -
Programing ROM CART from PCHave anybody tried to make a piece of hardware that would be able to program (burn) SINCLAIR cartridge from PC? In the sense, you take TAP or TZX and…
... cart into the spectrum's ram before starting the snap. Even ... that into the upper 48K of the spectrum's ram. This just ... -
helpHi, I am new to this forum. I have purchased a Speccy from ebay but I am having trouble getting any games to load. I dont really have much technical…
... has a fault in the upper 32k RAM, it will (95% of ... -
Can somebody help me with this?One of my "friends" shoved a piece of metal into the back of my spectrum (48k RAM) and now whenever I try to use it theres nothing but weird lines an…
... the most common cause of failure of the circuit - however, those ... memory faults - I find the upper 8 ICs (TMS4532 or OKI3732 ... 99% of the time an upper memory fault will not stop ... -
Spectrum problemHi I've just been trying to resurrect my 48k spectrum. I'm having some problems loading some of my games, but if it does completely load, it crashe…
... 16k of RAM. Which would leave us with the usual upper memory ... -
Fire Ruby - More HelpI cant pass the spikes in the fire ruby by lawrence creighton, can someone please help? [ This Message was edited by: welsh_brawler on 2003-08-08 21…
... 51
HAMM 52
RAM 53
EMPT 54
RAM SAVE RL...RAM LOAD{6}{6}{6 ... }{5}your search a dismal failure.{6}{6}{6}
Broken ZX Spectrum + (48k)Hi! I just got a ZX Spectrum + from a friend. He said it was working around 8 years ago when he put it into the cellar. It was in great condition - …
... something else.
upper/lower RAM faults are far more common ... often occur together (well, lower RAM & -5v anyway, for ... )
the lower ram can often *almost* work with ... an 'almost boot' - genuine lower RAM faults generally give rise to ...Any Errors?Any errors you feel Sinclair Research or even Amstrad made with the speccy??
... page any of the 16k RAM pages in any location - ... original 16/48k model, RAM could be paged in at ... , to give the maximum 64k RAM.
[/quote]
... d need to add another 16Kb RAM to the original machine ... does anyone know how much RAM cost back in "the ...I would like to write emulatorHi guys, I'm new to this forum but I realise that you must get loads of posts from people asking "how do I write an emulator" so I'll try and be spe…
... 're ROMs. If you mean 16Kb ROM images, they're not ... of the Z80, 64Kb of RAM (yes, this is a Z80 ... of the Z80 and the RAM.
The idea is ...Sparky eZX-BASIC Project in need of FPGA ExpertYou probably are not familiar with this project, but it is a computer system based on Zilog's new eZ80 chip and the OS is a superset of ZX BASIC. Ju…
... to the display. The display RAM could be shared on the ... , or to actually ignore the upper bits of the address bus ... even built in buffered display RAM interfaces for easy CPU implementation ...ArmalyteWas just browsing through some old YS stuff, and remembered the playable demo of this. Just got it and had a go from the archive. It's actually a ver…
... RAM configurations. That alone probably would've ensured it was a failure ...New Compo IdeaI've had this idea and would like to know what do you think about it. I think that most of us here know how to code in BASIC. The problem with Specc…
This is what I've compiled so far:
[quote]Resources
=========
* Make all caps
---------------
You can turn CAPS LOCK on or off using a simple poke to 23658:
POKE 23658,8: REM CAPS ON
...List of RANDOMIZE USR code effects?Hi chaps, Does anyone have one of these please? Thanks.
... machine code program in RAM - somewhere in the upper 49152 bytes of ...Want a Speccy Repaired?Maybe it's time to put my 'skills' to use.... Now that I've sourced some of the nastier transistors, I've fixed about 6 rubber keyed Speccys in the …
... Z80 or dead lower 16K RAM.
If you mean just ... 's basically working, though the upper 32K may still be duff.Investronica Inves Spectrum +Hi, Has anyone here ever heard of the Investronica Inves Spectrum +? This site [url="http://www.silicium.org/uk/sinclair/inves.htm"]http://www.sili…
... are 64Kb of RAM, and the first 16Kb are solapated with the ... do write into the RAM. And that RAM has some special addresses ..."Sinclair Zx Spectrum: Absolutely Better Than Commodore 64"Did you ever read this? [url="http://www.alfonsomartone.itb.it/fztsmo.html"]http://www.alfonsomartone.itb.it/fztsmo.html[/url]
... different controller chip) The video-RAM in the 128D was increased ... to 64K.
The failure of the 128 series is ...48k spectrum, video problems help neededHi All, I have been browsing this site for a long time and today i have finally registered and am after some help!! I have a 48k speccy and the vid…
... certainly.... It _might_ be your upper 32K RAM, but it's probably ...is my ZX Spectrum + finished :(When i turn it on the screen i get the usual gray border all around but in the screen area i get yellow and some orange lines with a black background…
... ICs 15-22 are the upper 32K which - even if they ... see if any of the RAM chips at all get warm ...Want a Speccy Repaired?Maybe it's time to put my 'skills' to use.... Now that I've sourced some of the nastier transistors, I've fixed about 6 rubber keyed Speccys in the …
... rare here) that has IC22 ram chip busted. Need to replace ... is 48k to salvage the upper memory chips from (and unforunetly ...Want a Speccy Repaired?Maybe it's time to put my 'skills' to use.... Now that I've sourced some of the nastier transistors, I've fixed about 6 rubber keyed Speccys in the …
... a 48K with the dead RAM, right? Can't have anything ... />
The 16kb Spectrum is a 16kb spectrum - original 16kb (with the 16k ... sticker). I will check RAM ...Want a Speccy Repaired?Maybe it's time to put my 'skills' to use.... Now that I've sourced some of the nastier transistors, I've fixed about 6 rubber keyed Speccys in the …
... simply mix OKI and 4164 RAM then?
I don ... have a spectrum with bad upper OKI RAM, can you simply replace ... 4164 in place of OKI RAM now knows why it ain ...Very first Speccy emulator?Which was the first? I mean here full emulator, not only Basic emu. I saw first Speccy emu. somewhere in 1991. Does anyone know something about Spe…
... />
C64 has not enough RAM for emulating Speccy - 64KB is ... ....
Ops... I forgot 16KB of Speccy's ROM. :)
broken ZX SpectrumHi there I was given a dead ZX Spectrum years ago, and being bored today thought I'd try it again. Its a Sinclair ZX Spectrum with lovely rubbery key…
... Spectrum's death: The upper 32K RAM bank had the D7 chip ... there.
My dead RAM chip drained so much power ...What happens during a reset?I always used to wonder about this, but only thought a bit more about it last night when noticing after all these years what actually happens. Obvio…
... chips ARE 16BITS ,but the 'upper' part is not good.
upper 32k of RAM in a 48k speccy ... you want to use the upper or lower 32k of the ...Speccy MTBFHi, Looking at the old (issue 1-2) PCBs, they do look like someone knocked them up in an etching bath/with a soldering iron in their shed but has th…
... , it's usually the 4116 RAM IC's that go wrong ... repair people say, 48K ULA failure is quite rare - I doubt ...
