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The Spectrum Resuscitation ThreadKicking off this thread as a place where people who are fixing/restoring Spectrums (or indeed any other piece of related hardware) can show off their…
... conditions), performed a recap and regulator replacement.
I've ... -
First time capacitor replacementHi, I have an Issue 2 board, that i wish to start with recapping as advised on here, as they look to be all original. (Same with V3 board, but going…
... be worth changing the 7805 regulator as well as these have ... -
First time capacitor replacementHi, I have an Issue 2 board, that i wish to start with recapping as advised on here, as they look to be all original. (Same with V3 board, but going…
... night, very informative, the voltage regulator didn't meet the requirement ... -
New hardware for Spectrum from ShaosI have some ideas for new ZX-peripherals and quickly designed a prototyping board for experiments: [URL=http://nedocon.com/store/speccy/][IMG]http:/…
... +9V to power a voltage regulator that creates independent +5V on ... -
First time capacitor replacementHi, I have an Issue 2 board, that i wish to start with recapping as advised on here, as they look to be all original. (Same with V3 board, but going…
... .rapidonline.com/Electronic-Components/7805-Regulator-To-220-tru-47-3313 ... .rapidonline.com/Electronic-Components/7805-Regulator-To-220-tru-47-3313 ... -
First time capacitor replacementHi, I have an Issue 2 board, that i wish to start with recapping as advised on here, as they look to be all original. (Same with V3 board, but going…
[QUOTE=Edge;727374]This one?
[URL]http://www.rapidonline.com/Electronic-Components/7805-Regulator-To-220-tru-47-3313/?sid=592d69cb-28e6-4142-aab1-b6d9af857a52[/URL][/QUOTE]Yes :)
[I][B]Mark[/B][/I] -
Opus Discovery OddnessHi everybody, I'm busy trying to repair an Opus Discovery for a customer. It's proving to be quite frustrating. First off, the LM317T regulator fo…
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First off, the LM317T regulator for the 5V was producing ... -
Getting aquainted with the IF1bisToday, fifteen days after dispatch, the IF1bis arrived at my door. In perfect order. No customs, no TVA and no handling fee involved. The arrival of …
... thermal paste to the voltage regulator/heatsink.
The spectrum ... -
Getting aquainted with the IF1bisToday, fifteen days after dispatch, the IF1bis arrived at my door. In perfect order. No customs, no TVA and no handling fee involved. The arrival of …
... thermal paste to the voltage regulator/heatsink.
The spectrum ... -
FS: Toastrack[URL="http://www.ebay.co.uk/itm/111188603251"]Here[/URL]
... had a higher rated voltage regulator fitted, new transistors and has ... -
Issue 4A black paper, white borderJust had one of these through, nice yellow pcb! Everything but the ULA soldered in. On power up I get black paper, white border and some intermitten…
The resetting issue turned out to be a keyboard problem oddly, anyhow, still black and white display, changed the regulator for a new one just in case, same, but when I press and hold the reset, I get colour, let go and its back to black and white again -
I know it's part ZX81 but what's the rest of it?You can see the ZX81 motherboard in the corner but I have no idea what the rest does, it powers up but I haven't managed to get the screen to tune in…
... in to possibly a power regulator to the right of the ... -
Didaktik Gama and M manualsI?m looking for manuals for the Czech Spectrum clones Didaktik Gama and M. Thought this would be an easy task, but I couldn?t find any user or servic…
... SMPS and an adjustable voltage regulator, something like an LM1117 or ... -
One more grey +2 with video problemsI guess I need your help again to hopefully be able to do some proper troubleshooting myself one day. Here I have a grey +2, which could be a bottom…
... the correct pins of the regulator? 5V should be on pin ... have 5V going INTO a regulator and near expected supply potential ... -
eBay 128K Spectrum RGB cables overheat the Spectrum!?Hi everybody, For a long time I've wondered why Spectrum 128K Toastracks were overheating when using my Retro Computer Shack RGB SCART cable. Today …
... seen it uses a voltage regulator to obtain the signal to ... -
I've had better nights...So I got a broken issue 2 today, case in good nick but the diags board showing multiple failures in both lower/upper RAM. Never mind, good as a spare…
... and using 7805 and 7812 regulator chips) and some current limiting ... -
Some problems with 2 ZX Specturm board'sHi, last week i got some ZX Spectrum stuff. Also 2 ZX Spectrum 48K's, one in the orginal case the anoter one in a DK'tronixs case. Both have problem'…
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On the 7805 voltage regulator, connect the black negative lead ... pins of the 7805 voltage regulator chip. One should be +5V ... -
Spectrum Missing -5vMy Spectrum is "almost" booting, just when you expect the (C) 1982 Sinclair Research to appear it just displays flashing squares on the screen :( I …
... (test on the 7805 voltage regulator)? If yes, then it is ... -
Spectrum Missing -5vMy Spectrum is "almost" booting, just when you expect the (C) 1982 Sinclair Research to appear it just displays flashing squares on the screen :( I …
I have fitted a 12v regulator into mine, works a treat. It was a eurpoean model that was outputting 17v off load and 15v on load. -
Spectrum Missing -5vMy Spectrum is "almost" booting, just when you expect the (C) 1982 Sinclair Research to appear it just displays flashing squares on the screen :( I …
... ]I have fitted a 12v regulator into mine, works a treat ... better by fitting a 8V regulator. The Spectrum will run much ... -
Spectrum Missing -5vMy Spectrum is "almost" booting, just when you expect the (C) 1982 Sinclair Research to appear it just displays flashing squares on the screen :( I …
[QUOTE=bagpuss22;734498]I have fitted a 12v regulator into mine, works a treat. It was a eurpoean model that was outputting 17v off load and 15v on load.[/QUOTE]
Got any pics of what you did ? -
Video failureHi i cant find the failure of my spectrum 48k issue 4a, i thought it was ic6 or ic13 but the memory seem to have the right values. When i turn it on…
... . The output of the voltage regulator or pin 14 of IC23 ... -
Harlequin clone...PCB manufactured!Using Chris Smith's detailed schematics and project notes from the Harlequin... a Speccy fan in the United States by the name of Don (Superfo) has de…
... try to include the switching regulator LM2596 also into the small ... -
Harlequin clone...PCB manufactured!Using Chris Smith's detailed schematics and project notes from the Harlequin... a Speccy fan in the United States by the name of Don (Superfo) has de…
... only video, audio and switching regulator chip and connectors) will be ... -
Black Screen Spectrum 48kWas working ok, it came to me in a Fuller FDS keyboard, I had a nose inside and found a floating power lead connected to the keyboard, I removed that…
... . The output of the voltage regulator or pin 14 of IC23 ... -
Black Screen Spectrum 48kWas working ok, it came to me in a Fuller FDS keyboard, I had a nose inside and found a floating power lead connected to the keyboard, I removed that…
... . The output of the voltage regulator or pin 14 of IC23 ... -
using the raspberry pi for the zx spectrumI just saw where they are now using a Pi to emulate a floppy disk drive for the Amiga. So it got me wondering if this could be done for the ZX Spectr…
... down by the electricity supply regulator of the specific country. It ... -
Black Screen Spectrum 48kWas working ok, it came to me in a Fuller FDS keyboard, I had a nose inside and found a floating power lead connected to the keyboard, I removed that…
... . The output of the voltage regulator or pin 14 of IC23 ... -
ZX Spectrum and add-on temperaturesImre Jakli from Hungary sent me some interesting pictures which I think are worth to share. These are about temperatures he measured with a modern to…
... the specific model of the regulator , this one ?
[url ... .altigator.com/traco-dcdc-switching-regulator-tsr12450-5v1a-p-78.html ...
