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Why did the Commodore 64 lose to the Spectrum in the UK?The Commodore 64 was released in the UK in 1983. As we all know, it was a great machine from a US company with a much larger financial backing than t…
... will immediately perform a self diagnostic on my circuits.[/quote] -
+3 - beeper sounds but no AY musicHi guys I am repairing a plus 3 revision 2 board that had no sound at all. Using schematics from https://zxnet.co.uk/spectrum/schematics/ I manage…
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Before I started your diagnostic, I took out TR4 (which ... -
Rod-land - struggling to get working on my real +2 (grey machine)Hi Everyone, I've had a week enjoying tinkering with my +2 and there are only a few games I have not managed to play on my +2 that I enjoyed back …
... not have the in-built diagnostic tests found on the +3 ... -
How can I fix a problematic Retroleum Smart Card. I did not do anything "WRONG " with it but I did but it on a flexible cable and this seems to have "upset" it .Since then It does not perform the …
... it a quick try in Diagnostic mode . It is very easy ... -
Getting Better at TZXThere are possibly fewer "rules" in chit chat so I thought I would put this here. it is a couple of years since I attempted doing any TZX files so…
... on screen :
Mathememtaics Diagnostic Test 1
Question ... -
Getting Better at TZXThere are possibly fewer "rules" in chit chat so I thought I would put this here. it is a couple of years since I attempted doing any TZX files so…
... I have also found the DIAGNOSTIC TEST PAPERS in Section 2 ... -
Getting Better at TZXThere are possibly fewer "rules" in chit chat so I thought I would put this here. it is a couple of years since I attempted doing any TZX files so…
... requires the manual with the diagnostic tests in which are not ... -
Getting Better at TZXThere are possibly fewer "rules" in chit chat so I thought I would put this here. it is a couple of years since I attempted doing any TZX files so…
... I would recommend ignoring the Diagnostic Tests on Tape one Side ... -
Another Spectrum is brought back to life.Hi Spec-chums. I have been having bit of busy afternoon with repairs today. I've brought back to life a Panasonic Super-VHS recorder, and more intere…
... faulty ram IC's. The diagnostic rom will identify which IC ... -
MB03 UltimateDear ZX friends, you may have heard of MB-02+, probably the best disk interface for ZX Spectrum, originated back in the 90's. Although not much sp…
... author. You can also run diagnostic tool and test your Spectrum ... -
The Diagnostic PCBIt arrived in the post today so this is my first go with the Diagnostic PCB. (bought on Ebay) This item , I think , does the same job as Retroleu…
... it is called the Spectrum Diagnostic Cartridge . It did not come ... .gjmccarthy.co.uk/zx-spectrum-diagnostic-board/"]https://blog.gjmccarthy.co ... .uk/zx-spectrum-diagnostic-board/[/url]
So ... -
The Diagnostic PCBIt arrived in the post today so this is my first go with the Diagnostic PCB. (bought on Ebay) This item , I think , does the same job as Retroleu…
... indicates the progress of the diagnostic program, and with some ... the results. If the diagnostic program is not running, ... improved and expanded the diagnostic program to run on ... maintaining compatibility with the original diagnostic hardware.
[ ... -
The Diagnostic PCBIt arrived in the post today so this is my first go with the Diagnostic PCB. (bought on Ebay) This item , I think , does the same job as Retroleu…
... auto-detection resulting in misleading diagnostic results...
[b][i ... -
Corona Virus,Is is me or is the BBC sensationalizing this corona virus too much and creating hysteria?
... cured, I got a positive diagnostic.
Well, let's ... -
Have you got a project or are doing anything interesting during lock down?I’m “having” “fun” cutting shapes in wall tiles to fit around the electrical switches, sockets and heating/boiler control box in the utility room. …
... when it is done, provide diagnostic functions, and allows custom presets ... -
12V missing on an issue 3I’ve been working on an issue 3 Spectrum +. It shows thin distorted vertical stripes on bootup. +5 and -5V are all right but the 12V line measures ro…
... to run the Smart Card diagnostic or boot into the Smart ... -
12V missing on an issue 3I’ve been working on an issue 3 Spectrum +. It shows thin distorted vertical stripes on bootup. +5 and -5V are all right but the 12V line measures ro…
Either the Z80 has crashed due to memory problems (ROM or RAM) or address bus problems, or the Z80 is faulty.
If it won’t run a diagnostic ‘ROM’, then it’s less likely to be a RAM fault.
[b][i]Mark[/i][/b] -
Spectrum 128k advice neededHi, I'm new to this forum and the spectrum world. I have this spectrum "toastrack" that was working fine until today. It doesn't boot anymore, it s…
... EPROM (programmed {burned} with the diagnostic program) in place of the ... -
Spectrum 128k advice neededHi, I'm new to this forum and the spectrum world. I have this spectrum "toastrack" that was working fine until today. It doesn't boot anymore, it s…
Upper memory not available in issue 2A friend send me his issue 2 Spectrum for diagnosis. It boots okay but for some reason won't load games over 16kB. He sent also a Smart Card with int…
... . No joy. Using Brendan’s diagnostic rom, it does indeed fail ...Upper memory not available in issue 2A friend send me his issue 2 Spectrum for diagnosis. It boots okay but for some reason won't load games over 16kB. He sent also a Smart Card with int…
... be active. So run the diagnostic program.
[b][i ...Speccy 4A board problemHi all. I was hoping for some help with my Speccy (with 4A Board) before I send it off for repair. When I power it on all looks fine (i.e. copyright …
... finding, is to use a diagnostic/RAM tester that runs from ... an interface such as a diagnostic card, SMART Card, Interface 2 ...Looking for a utility (keyboard and joystick tester)Hello everybody! I'm looking for a utility program of the Spectrum (hope this is the correct place to post it!). It showed the keyboard on screen,…
Some ROM based diagnostic test programs do this.
...problem when game finished loading 128kI have this problem when some 128k games finishes loading. It just hangs, some time the screen gets corrupted, sometimes nothing happens. It looks …
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There are some decent diagnostic testers about both software and ...problem when game finished loading 128kI have this problem when some 128k games finishes loading. It just hangs, some time the screen gets corrupted, sometimes nothing happens. It looks …
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There are some decent diagnostic testers about both software and ...Key Materials ,Concepts , and Ideas for DIY Cases For ZX Spectrum Interfaces.In the 1980's ZX Spectrum Interfaces were largely supplied "cased up" or encased . Nowadays often they are not as they are usually sold as bare PCBs.…
... looked at the "The Spectrum Diagnostic Cartridge" ( software used on it ...Key Materials ,Concepts , and Ideas for DIY Cases For ZX Spectrum Interfaces.In the 1980's ZX Spectrum Interfaces were largely supplied "cased up" or encased . Nowadays often they are not as they are usually sold as bare PCBs.…
... as it went through the diagnostic test . With this PCB , with ...Key Materials ,Concepts , and Ideas for DIY Cases For ZX Spectrum Interfaces.In the 1980's ZX Spectrum Interfaces were largely supplied "cased up" or encased . Nowadays often they are not as they are usually sold as bare PCBs.…
... the case for the Spectrum Diagnostic interface so that the LEDs ... was glued in . On this Diagnostic PCB the LEDs test the ...
