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+2 power not working. Need helpHi folks, I'm hoping someone may be able to point out what could be wrong/needs fixing here. One of my +2's had a loose RF modulator. The 5v wire w…
... if this can be salvaged? Replacement modulators don't seem available ... there is a 5 volt regulator which should the unregulated supply ... -
Spectrum +3 doesn't workMy recently ebay purchased +3 arrived today, so I was quite excited to have one again. I plugged it in and all was well, except for a slightly worry…
... transistors that blew in my PSU when I accidentally shorted it ... to get, or the modern replacement ones? -
Powerpack melts! +3 survives!I woke up this morning, switched on the sockets, went to the loo 'as you do' and came back into the living room. I heard this clicking sound so I th…
I'm all in favour of a viable modern replacement for a +3 PSU, but I'm not sure what an ATX is. -
Powerpack melts! +3 survives!I woke up this morning, switched on the sockets, went to the loo 'as you do' and came back into the living room. I heard this clicking sound so I th…
... ]
The type of PSU that is the +3 one ... guess that the 5V linear regulator let out the magic smoke ... 've only ever had one PSU assassinate a PC this way ... -
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…
... that price difference between linear psu and smps was over 65 ... -watering price for buying a replacement PC PSU in about 1990 or ... -
Spectrum 48k PSU voltageI have been running into problems with my rubber key speccy. To cut a long story short I did a voltage check of my power supply. It seems to fluctuat…
[QUOTE=BloodBaz;509363]The PSU should maintain about 9v when ... , according to the datasheet, the regulator wont work reliably, and god ... be worth looking for another PSU. Just make sure its between ... -
2 48K speccys dead..Hey guys! I've got two of our rubbery friends with me that need some help. They've been like this for some time, but I would like to try and fix th…
... the psu I'm getting about 12V. On the 7805 regulator I ... 'm getting on the PSU (note: same PSU as the other one ... I also get in the regulator along with a 5V output ... -
2 48K speccys dead..Hey guys! I've got two of our rubbery friends with me that need some help. They've been like this for some time, but I would like to try and fix th…
... 'm getting on the PSU (note: same PSU as the other one ... I also get in the regulator along with a 5V output ... -
Grey +2 regulatorIv just checked the regulator and its a TS2940. Could someone tell me the equivalent please?
... this means when the the regulator needs the current it is ... ) total..
the last replacement I made for a 128K ... used a fixed 5 volt regulator (7805). currently my 128 +2 ... -
Grey +2 regulatorIv just checked the regulator and its a TS2940. Could someone tell me the equivalent please?
... drop out) (non-fixed) regulator. this could be replaced with ... ebay.co.uk/L78S05CV-78S05-REGULATOR-5V-/190504555499?pt=UK_BOI_Electrical_Components_Supplies_ET& ... ]eBay BIN L78S05CV 5volt 2amp regulator ?0.99 + ?1. ... 3amps out of the PSU then it would likely ... -
FS: Quite a bit this time!Had a bit of a haul the weekend, got most of it working too, from memory (because im at work and not at home) Ive got; 3xGrey +2's 1x48k+ 4x48k Onl…
Whats left is now 3 greys and one 48k, I stupidly just blew one up testing what I thought was a good PSU, probably just the 5v regulator if im lucky, of which I have several new ones. -
likely damage caused to +2 by too highly rated supplyHi. did have a quick search but couldn't see an answer. I've been offered a +2 which the previous owner damaged by connecting too high a power supply…
I had a Speccy that was given a jolt of over voltage from a dodgy PSU, luckily it only took out the 5v regulator which is easily replaced -
likely damage caused to +2 by too highly rated supplyHi. did have a quick search but couldn't see an answer. I've been offered a +2 which the previous owner damaged by connecting too high a power supply…
... to replace the 5 volt regulator. With some of the disucssion ... a 2 amp 5 volt regulator.
[B]The ... pics and try an apropriate PSU on the Spectrum and let ... -
likely damage caused to +2 by too highly rated supplyHi. did have a quick search but couldn't see an answer. I've been offered a +2 which the previous owner damaged by connecting too high a power supply…
... to replace the 5 volt regulator. With some of the disucssion ... a 2 amp 5 volt regulator.
[B]The ... pics and try an apropriate PSU on the Spectrum and let ... -
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…
... ] for your quick answer. DRAM replacement is the easier fix. Found ... were finally:
* Rip of Regulator 7805 and put new tracopower ... -
now lost the +5v from my +3 psuthe voltages i get from it are -12v +12v +0.61v what part needs replacing in the housebrick that is the PSU? having a bad weekend :-(
... as i never taken a psu apart to fix as i ... ?
The transistor and regulator should be bolted to the ... -
The Idiot's guide to 3.5 inch floppies on a +3All help gratefully received, including blow by blow instructions and tutorials. I am interseted in adding a floppy drive (3.5 inch) to my +3 as an …
... using a spare black PC PSU, a black PC floppy, spare ... on the Spectrum or "internal replacement" which makes this drive act ... -
New speccy modelThe 48k toastrack ;) [img]http://alistairtesting.no-ip.org/48k-toastrack.jpg[/img]
... the 97% yield the RECON regulator has. I mean the 7805 ... same as a 2A recon regulator (if there was one).
PSU or how much it can ... -
New speccy modelThe 48k toastrack ;) [img]http://alistairtesting.no-ip.org/48k-toastrack.jpg[/img]
... the 97% yield the RECON regulator has. I mean the 7805 ... same as a 2A recon regulator (if there was one).
PSU or how much it can ... -
New speccy modelThe 48k toastrack ;) [img]http://alistairtesting.no-ip.org/48k-toastrack.jpg[/img]
... circuit from a standard ATX PSU,I have some diagrams here ... stick to the DC-DC regulator plan :) -
New speccy modelThe 48k toastrack ;) [img]http://alistairtesting.no-ip.org/48k-toastrack.jpg[/img]
... a 78S09 2 amp 9v regulator, which is pumped +12v
PSU)
you could build ... this inside the ATX PSU - and just have 4 output ... -
New speccy modelThe 48k toastrack ;) [img]http://alistairtesting.no-ip.org/48k-toastrack.jpg[/img]
... , I know, there are replacement transistors, but last time I ... . 7805 is a linear regulator, on the cotrary RECOM ... is "switch regulator"... different ways to do ... the switch regulator.
When you use "replacement transistors" you ... -
RGB to S-Video and Composite Adapterif I produced a dongle that generated composite and s-video from the RGB socket on +3 and Black +2 spectrums would anyone be interested? I'm thinkin…
... done by having the 9v PSU plug into the dongle, and ... to have its own 5v regulator anyway as the +3 gives ... -
Zx 80Time to sell the one Iv got it looks like. [url]http://cgi.ebay.co.uk/Sinclair-ZX80-Mint-Boxed-and-Fully-working-/230618415203?pt=UK_VintageComputin…
... with the original white PSU (I had the PSU some years ago ... how many people buy the replacement keyboard membranes and case rivets ... -
Sinclair QL ProblemHi there. I purchased recently four Sinclair QL for a not small amount of money. Two german and two english, they are mixed: British or European conn…
... a heatsink and a QL regulator![/QUOTE]
I have ... heatsinks I have from PC PSU, but I prefer Recom technology ... -
48k dots appear but not with CUB monitorToday I tried out an issue 3 and an Issue 2 with the CUB monitor, to my surprise they both worked flawlessly, now before when I tried them on any oth…
... socket and down to the regulator, exactly the same, wouldn't ... start appearing if powered by PSU (which is tested fine) but ... -
48k dots appear but not with CUB monitorToday I tried out an issue 3 and an Issue 2 with the CUB monitor, to my surprise they both worked flawlessly, now before when I tried them on any oth…
... is wrong then on the PSU. Maybe "noise"?
Test both ... will be gone after the regulator. Sometimes insulation of the 220V ... -
QL in bits from car boot saleI was at the car boot sale today, and I bought the following for ?40: * Spectrum+ * Tape recorder * An external Microdrive (no Interface 1 unfortuna…
... need at least a PSU and a regulator, as well as a ... -
I might try building a barebones PC.Our Packard Bell iMedia 5077 is literally on its last legs. Every time it is switched on something doesn't work, usually it is the sound, sometimes i…
... they have, some buy a PSU that doesn't provide enough ... life easier by getting free replacement of motherboards, power supplies, memory ...
