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Multiface One problemsI bought a Multiface One. After a lot of trouble I changed the CPU because NMI was faulty. Saving a game is no problem. When I load a saved game it…
... /> It might also be a faulty ram chip... did you check the ... RAM?
It also sounds ... -
Multiface One problemsI bought a Multiface One. After a lot of trouble I changed the CPU because NMI was faulty. Saving a game is no problem. When I load a saved game it…
... /> It might also be a faulty ram chip... did you check the ... RAM?[/QUOTE]I'll do the ... logic IC's. And a Ram. Is it possible to test ... -
damaged spectrum+ (blinking squares)Hi, Sorry for my poor english, but I couldn't find on family forums any remedy for my hardware problem with my first speccy in my life :) I've bought…
... components.
Removing the RAM needn't be a pig ... them are bad. 4116 RAM comes up on ebay from ... small 74-series logic to 128K static RAM and CPUs). So don ... good before putting in new RAM. Once you've put in ... the new RAM and the machine works, ... -
Spectrum lost upper memoryHi again, I have a Rubber key Spectrum(issue 4S) which lost it's whole upper memory. It's worked okay, but i forgot it on over last night. My son wa…
... fault to the upper RAM can knock the whole ... out. There are 8 RAM chips making up the ... upper RAM along with some multiplexers.
RAM but your Spectrum will ... two types of "half faulty" RAM which you need to ... -
48k or 16K ?Hi All Something I do not recall, how do you tell a 48k rubber key Spectrum from a 16k ? Thanks for reading
... , so my assumption is bad ram or possibly loose chips, as ... 48k machine ?[/QUOTE]
faulty ram chip(s), as someone pointed ... -
48k or 16K ?Hi All Something I do not recall, how do you tell a 48k rubber key Spectrum from a 16k ? Thanks for reading
[QUOTE=Arda;496503]faulty ram chip(s), as someone pointed out #somewhere, try to replace the one(4116's) that burns your finger when you touch it.[/QUOTE]
Hi
Thanks, yes I have resolved the problem :) -
Recent talk of developing new SpectrumsHi all, I can see from a few threads on here that some Wossers like Vasil and Aien 8 are interested in developing more powerful Spectrums or improvi…
... stop the frequent writes to RAM and so speed it up ... use one portion of the RAM for data that it ... rewrite other portions of the RAM for data that it will ... icons, core services etc in RAM at all times so wait ... , the original Mac had 128K of RAM and 64K of ROM. ... -
Recent talk of developing new SpectrumsHi all, I can see from a few threads on here that some Wossers like Vasil and Aien 8 are interested in developing more powerful Spectrums or improvi…
... with 64K of ROM and 128K of RAM and that was enough ... -
Recent talk of developing new SpectrumsHi all, I can see from a few threads on here that some Wossers like Vasil and Aien 8 are interested in developing more powerful Spectrums or improvi…
... with 64K of ROM and 128K of RAM and that was enough ... -
Supertest 128 - Loader QuestionI wonder if someone could explain (in simple terms please) :) , the purpose of the switch code. I see what is doing (going to 48k mode via spectrum)…
... 128 paging register and full 128K of RAM without 128 BASIC getting ... will corrupt one of the RAM pages. -
T/S 2068 & SpectrumBorrowing what you see below from the Timex Sinclair 2068 Beginner/Intermediate Guide, by Fred Blechman. It appears the T/s 2068 was intended to be …
... the extended one and add 128K of RAM to the two available ... -
Spectrum +3 Help pleaseI bought a +3 from a bootsale today, and when I got it back it didnt work (shock!) However after working out the +5V line on the PSU line was about …
... : check (spectranet has 128k of ROM and 128k of RAM so there's ... -
ZX Spectrum 48k issue 3b power problem?Hi :) I was lucky enough to find a couple of ZX Spectrums at a car boot sale yesterday. I spent the evening fiddling about with one (issue 2) and t…
... ’t think you have any faulty RAM chips.
You can use ... -
Amperage drastic reduction in a rubber 48KWell, I am now with the approach of a drastic reduction ZXSpectrum amperage. As a first step would change the Z80 processor for other (Z80C). Unfortu…
... just realized Sami?s 32K RAM SRAM FIX changing and ... DEMFIR 5b, it detected 128K of RAM!! and all the graphics ...
On the 32k ram chip bend up pin 1 ... . Removed IC25, IC26 and 8 RAM chips.
If ... I have a BASIC RAM calculating: LET N=PEEK 23732 ... -
So what is the best Spectrum?I've had a search and even though i can remember a similar thread somewhere I'll twist it a bit. Whats the best "unmodified" Spectrum? (modification…
... ]AY sound 3 years before 128K[/quote]
TS2068 was 1983 ... ]Cartridge dock (accepts ROM and RAM!)[/quote]
The MMU that ... you can add an additional 128K of RAM to it and emulate ... -
So what is the best Spectrum?I've had a search and even though i can remember a similar thread somewhere I'll twist it a bit. Whats the best "unmodified" Spectrum? (modification…
... . The EX and DOCK sideways RAM banks are still present but ... you can add up to 128K of RAM to a TC2048 and ... -
So what is the best Spectrum?I've had a search and even though i can remember a similar thread somewhere I'll twist it a bit. Whats the best "unmodified" Spectrum? (modification…
... . The EX and DOCK sideways RAM banks are still present but ... you can add up to 128K of RAM to a TC2048 and ... with TS2068 compatibility?
Adding 128K RAM to a TC2048 would be ... -
GUI/OS for the Spectrum?Hi, Is anybody working on a WIMP/GUI system for the Spec? Is there anything current out there? [url]http://snakeoillabs.com/wordpress/2005/10/30/8…
... storage is that on-board RAM ceases to be an issue ... use the top 32K of RAM for programs. If you start ... using expanded RAM of various devices then you ... gives you around an extra 128k of ram and once my hard ... -
RAND USR that doesn't work in emulators and clonesEons ago, I "discovered" a strange RANDOMIZE USR. This is it: [b]RANDOMIZE USR 46578[/b] Using it on a genuine ZX Spectrum rubber key or Plus model,…
... single machine I'd say faulty RAM, but it seems unlikely you ... -
Spectrum not working, can anyone help this lady?[URL="http://www.retrogamer.net/forum/viewtopic.php?f=6&t=29734#p674152"]http://www.retrogamer.net/forum/viewtopic.php?f=6&t=29734#p674152[/URL]
... be performed to check for faulty RAM chips, identify, and replace them ... -
Amstrad anyone ?I grew with C64 and Speccy, and still use both, but I`m curious about the Amstrad CPC464. So, comparing it to the spectrum only, what is it like ? …
Dead Spectrum SocietySo I'm getting back into real Sinclair computers rather than emulators. During the summer months I was lucky enough to buy a working ZX81 and was giv…
... ]How to identify a faulty DRAM chip by visual inspection ... chips, but sometimes a faulty chip doesn't warm ... was to diagnose a faulty Spectrum. His owner ... likely scenario for a faulty DRAM chip). Besides, ... in order to simulate faulty RAM scenarios, and see how ...looking forward to prince of persia on c64 :)out tomorrow.. from whats been posted on youtube , looks decent [youtube]tBs5-WOtIpc[/youtube]
actually you would need 128k of ram to play it.
... a direct port from the 128k Apple II version, so there ...Issue 2 voltage troubleDear all, I got my hands on an old issue 2 from a friend. Price was close to zero so I did not hesitate to take it. After powering it up I was sur…
... was to see whether a faulty ram draws to much current and ... blown TR4 and thus a faulty lower Ram -> non working Speccy ...What spectrum?I am going to have a gent send me some Spectrum hardware in the future. Me being a american and knowing nothing of the sort, what would be the best o…
... sure about your TV, a 128K "heatsink" Spectrum / +2 grey can ... your best option is a 128K "heatsink" Spectrum, because:
- It ... 'll have AY sound (and 128K of RAM :D). Besides, it maintains ...BeginnerIm having a go at fixing a spectrum which has been in the loft for 20 years and would like some advice please.... I have downloaded the 'spectrum se…
... the -5v legs of lower ram chips until it's not ... be taken away by a faulty RAM chip? What should the resistance ...Colour blocks on displayHi all, I have just acquired another Sinclair product, my first one being a C5, it's a 48K ZX Spectrum. It shows colour blocks on the display when p…
It can be still z80 fault, don't forget.
Lately, I had +2b with faulty ram, all of them were too hot. Finger is really good tool :grin:.Colour blocks on displayHi all, I have just acquired another Sinclair product, my first one being a C5, it's a 48K ZX Spectrum. It shows colour blocks on the display when p…
... /> Lately, I had +2b with faulty ram, all of them were too ...Better or Worst! Speccy vs C64Just wanted to see what games you all thought looked better or played better on the Speccy or the C64? I always thought that Renegade & Target Ren…
you needed to fit them in 128k RAM.... and you call Amstrad a good machine when you struggle to put JSW into 128k (?!!!) of RAM???
go try some Atari 2600 coding man...
