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The great 128k ConversionWell, I am not sure if it is going to be great. Hopefully it will! This evening, I set about getting my Issue 6A Spectrum Plus working. I suspecte…
... Plus working. I suspected the power supply, because it had been ... think it might be worth replacing the caps. -
TC2048 Power SupplyDoes anyone know what power supply specs TC2048 need? I found them once, but I can't seem to locate them any more. My TC2048 is outputting a lovely r…
Does anyone know what power supply specs TC2048 need? I ... , not sure if it's power related, but I definitely need ... to know how much power it needs...
[IMG ... -
ZX Eprom replacing Rom problemsI got a programmer today so I could finally flash the Xicor X28C256 eproms I have with ZX128 rom, to be used in my upgraded 48K machine. But for some…
... on the 74LS174 in the circuit that handles new A15 etc ... -
Correction of +2 hardware errorsThis is a collection of various pieces of information picked up from various places, including a lot from this forum. I have edited it and reworded i…
... generated sounds.
The circuit diagram shows video output options ... capacitor to get a smooth power line. Switching this big capacitor ... -
Revive Spectrum +3 power supply(ies)Hi all, it's me again... [url]http://www.worldofspectrum.org/forums/showthread.php?t=33677[/url] In continuation from last time, I have two original…
... two original non-working +3 power adapters.
I am ... />
N.B. My ATX power supply mod with DIM plug ... -
Replacing capacitors on a +3 PSUDoes anyone know what kind of PSU does the +2A/B +3 use? Is it a switching one? Judging from it's weight I don't think it must be.... Anyway, I just…
... kind). I'm thinking of replacing them... here's the list ... -
Flashing coloured blocks - diagnosisHiya, hope this is the right place for this... Was given an Issue 2 48K by a someone yesterday that hasn't been powered on in 20 years, which works …
... , but if I take the power out then put it back ... them would indicate a short circuit, and they're all cold ... -
Spectrum Power SuppliesHello More spare room cleansing. Got 3 spectrum power supplies up for auction, reasonable P&P: [url]http://www.ebay.co.uk/sch/millys-pigdog/m.html…
... .
Got 3 spectrum power supplies up for auction, reasonable ... -
Raising to the powerA curiosity of ZX Basic I found yesterday is that you can't do this: [code] 10 LET x=-3 20 LET y=x^2 [/code] While you can for example do LET y=-3^…
... raised to a non integer power. But no explanation on the ... (x)^2 because an even power will always have a positive ... -
CPC Power goes down?These Amstrad CPC folks are unlucky people. WOS used to link to some CPC site and it went down. Recently it linked each game to a site called CPC-P…
... to a site called CPC-Power.
Now it seems ... />
[url]http://www.cpc-power.com[/url]
[QUOTE ... ][SIZE="1"]CPC-POWER est maintenant vide (tous les ... . GamebaseCPC
CPC-POWER is now empty (all files ... -
Power led for the Spectrum+?Hi, is there a way to make a power led for the Zx Spectrum+? I'm looking a safe way to connect the 2 wires to board. Becase i'm new to the spectrum h…
Hi, is there a way to make a power led for the Zx Spectrum+?
I'm looking a safe way to connect the 2 wires to board.
Becase i'm new to the spectrum hardware and don't want break my speccy ;) -
Raspberry Pi Model B + Power SupplyGoing to let go of my Raspberry Pi Model B as the project I was going to do has to be put on the back burner for quite a while. I have only had the …
... clear case along with a power supply.
Everything works ... -
Issue 3 board... How to resurrect?Dear Everyone, Now I have a working 48k Issue 3, a sort of working Speccy+ (still having problems with the keyboard, more of that in another post) a…
... ] video (thankyou Zorn) that introduces circuit board testing with a multimeter ... it a matter now of replacing all the lower RAM chips ... -
Alphacom 32/Timex 2040 PrinterHello again, Having resurrected my ZX Printer, I have now turned to an Alphacom 32 that is not working. However, I am completely in the dark with th…
... for it!
When power is supplied to the cable ... . I would try testing the circuit with a multimeter, but I ... regulators, but am getting open circuit all the time, and nothing ... -
Yet another glitchy graphics 48kHeyo, I'm new both to the forums (sorry if this is the wrong forum) and to Spectra I'm afraid, picked up a 48k from a steam fair sale thingy (not th…
... not working.
The power supply appears to have been ... around to ordering a +2 power supply for it. Now it ... the motherboard. Since the previous power supply was KO'd that ... I probably want to try replacing the (socketed) ULA, is this ... -
power supply for +2 greyJust bought a fully working +2 grey but it dont have a power supply. I did see it working though so i do know it works. Whats the voltage and amps fo…
Just bought a fully working +2 grey but it dont have a power supply. I did see it working though so i do know it works. Whats the voltage and amps for the psu ?
thanks -
Zx power supplyHi all, can anyone help me. I've just bought a Zx spectrum + on eBay with no power supply. I have a 48k rubber key one at home. Will the power supply…
Hi all, can anyone help me. I've just bought a Zx spectrum + on eBay with no power supply. I have a 48k rubber key one at home. Will the power supply from that work with it? For that matter will all the other plugs work? -
Power supply info (for Plus D)Hi all, My Plus D power supply died a while back and I'm trying to source a replacement. The original is 5V @ 350mA and I've seen a replacement wit…
... ,
My Plus D power supply died a while back ... -
UPS power supply noise (odd one)I've got an APC Smart-UPS 700 Had it for about three years no problems with it at all. It was 'used' when I got it. Yesterday I powered it down fo…
... left it turned off (no power input) as I did not ... -
Cobra (improved again BUGFIX)This is an improved BUGFIX for game [URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0000996"]Cobra[/URL], that works better than the fix curre…
... when you have the invincibility power-up causes the game to ... -release solved this problem by replacing this routine with a fixed ... -
ZX Spectrum Pre-regulator DesignCarrying on from the "[URL="http://www.worldofspectrum.org/forums/showthread.php?t=44486"]Issue 2 crashes after about 30 mins[/URL]" thread... [QUOT…
... reverse polarity protection and a power on LED. If you ... />
Here is the provisional circuit diagram / schematic:[IMG]http://farm4 ... LED
TR1 .... NPN power transistor, IC max of 1 ... peripherals or expansions that draw power from the Spectrum, or are ... -
Ferguson 3T31 circuit diagram availableFinally managed to get the circuit diagram for this beastie. I'll upload it to WoS soon enough, in the meantime, PM me with your email addy if you w…
Finally managed to get the circuit diagram for this beastie. I'll upload it to WoS soon enough, in the meantime, PM me with your email addy if you want it. -
48k+ Power Supply quickieGuys, Can someone tell me if I can safely use the power supply of the 48k+ in a 48k? My guess is yes, but I don't want to do something I will regre…
Guys,
Can someone tell me if I can safely use the power supply of the 48k+ in a 48k?
My guess is yes, but I don't want to do something I will regret :)
Thaks,
Ant?nio -
Spectrum 48k video and keyboard issueHi all, few days ago I experimented with battery supply for my speccy (48k issue 2), and I was measuring the voltage and how much current it used. A…
... /> So a short circuit at the input power plug of the speccy ... . The battery had short circuit protection ... -
Can you use a ZX81 psu to power a ZX80?Can you use a ZX81 psu to power a ZX80 without causing any Damage? Cheers
Can you use a ZX81 psu to power a ZX80 without causing any Damage?
Cheers -
Audio fix/Stereo on a Spectrum +3 (one with bad sound circuit) *WAV file includedMy Spectrum +3 that I got a while back (converted now to +3e with CFlash Card) was one of the early releases that had the bad sound circuit. Tried a …
... that had the bad sound circuit.
Tried a few different ... -
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…
... inside and found a floating power lead connected to the keyboard ... 's video and am currently replacing the caps...
Any ... -
Any Megadrive fans around?Just a bit bored...and if you're bored :) The Megadrive (Genesis here in the US) was my 2nd or 3rd console I bought new back in the day (the Speccy w…
... of having to use 3 power supply adapters, the 3 in ... 1 system has no power brick, just a power cable like the ... up with a pretty decent circuit with good results.
Not ... -
Favourite things to do in a power cut threadApparently we have yet another power cut at home, this is after 35 hours without any leccy over Christmas Eve/Christmas Day. Suggestions for favouri…
Apparently we have yet another power cut at home, this is ... things to do in a power cut please. I'll print ...
