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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…
... some fault in the video circuit but as a first step ... it more likely that the power supplies fails or that some ... -
Repairing another Issue 2 48K Spectrum.I said at the start of the other thread that I've got another one of these and I've started investigating it. The board is more-or-less exactly the …
... the service manual suggested power supply circuit modifications haven't been ... good as a complete short circuit. I first replaced the ... circuit), carefully noting its different pin out. I applied power ... current through TR4. In circuit, the mini-transformer's ... -
Power Brick ProblemDear all, i was just Powering up a 48K Rubber Key Speccy using two differnt power bricks. First one from my issue 2 Speccy, second one from an issue…
... Key Speccy using two differnt power bricks. First one from my ... caps.
With first power supply the Speccy works well ... first 5 minutes, until the power brick has warmed up. Then ... -
Collection Worth Saving?Hi, I've recently been reunited with my childhood collection of spectrum items - a boxed +2, original and a couple of Cheetah joysticks, loads of mag…
... Head over Heels, Cobra, Short Circuit, Frankie, Arkanoid, Wizball, Great Escape ... Tape
Pool Budget
Power Drift Full Price
Professional ... /> Sherlock Full Price
Short Circuit Budget
Sim City Full ... -
Power adaptor for a Sinclair 128kHi, just a quick question. Would a 48k spectrum+ power lead work for a 128k Sinclair Speccy, I have both but the power does not work on the 128k, I n…
... question. Would a 48k spectrum+ power lead work for a 128k ... , I have both but the power does not work on the ... the same although the 128k power says 0.115A IN and ... the speccy+. Trying this 48k power adaptor which works would not ... -
Does a spectrum +2 power supply work on a +3?tiny question, does a spectrum +2 power supply work for a +3?
tiny question, does a spectrum +2 power supply work for a +3? -
128 k power packSeems my 128 k toast rack needs more power! I am using a 48 k power pack so if anyone has a working 128k one I will be interested.... Would pay or c…
Seems my 128 k toast rack needs more power! I am using a 48 k power pack so if anyone has a working 128k one I will be interested.... Would pay or could swap for the 48k one or for some software ?
Drop me a PM
Thank you! -
Issue 4S Schematics and DC-DC circuitA while ago I bought a Spectrum 4S that had problems tuning. I removed the RF tuner as I was not going to use it and did the composite mod. It worked…
... finding on the DC-DC circuit. So I just wanted to ... -5V from the DC-DC circuit, and can only run the ... -
ZX 128k +2 Bad deal - BrokenI recently traded a C64 for a ZX Spectrum 128k +2 (grey model). I sent a fully working C64, with doubles of the tapes I had. I recieved a shabby and …
... in pieces on the circuit board. THe power supply that came with ... be done, have not tried). Circuit board is full of really ... -
Using an ATX power supply - Spectrum 48kOK... I have an Issue 3 48K model and the DC-DC converter does not work and I can?t make it work. :( There is a MOD to use an ATX power supply on the…
... MOD to use an ATX power supply on the TK90X here ... and +12V direct from the power supply to the TK mainboard ... -
Suggestion for adding CPC version links to CPC-Power...Well, as the title says, [URL="http://www.cpc-power.com/"]CPC-Power[/URL] is the equivalent to Infoseek in the CPC world, it's a serious project runn…
... , [URL="http://www.cpc-power.com/"]CPC-Power[/URL] is the equivalent ... -
ZX81 back porch fix using LM1881Hello! Has anyone here did the back porch fix for ZX81 using LM1881? I did it this weekend and instead of clear black on white i got black on dark g…
... . I also added a small power supply filter made from 10u ... feed the output of the circuit to a transistor amp? Or ... : The voltage divider in the circuit has overall 225 Ohms between ... hotter when i connect the circuit. ULA is over 40C for ... -
THE VOLTAGE OF THE POWER SUPPLY UNITCould anybody who has a ZX Spectrum 128k +2 count with a voltameter the voltage which the power supply unit gives to the Spectrum and tell me the [B]…
Could anybody who has a ZX Spectrum 128k +2 count with a voltameter the voltage which the power supply unit gives to the Spectrum and tell me the [B]exact[/B] reading? -
ZX Spectrum power supplyHi, I'm looking for a small lightweight power supply that would be a perfect substitute for the original, it's meant for a video patched zx spectrum…
Hi,
I'm looking for a small lightweight power supply that would be a perfect substitute for the original, it's meant for a video patched zx spectrum. Anyone knows where to buy one?
thanks -
Velesoft's ZX128+2 with 1.5MB memoryMy old ZX128+2 PROFI (grey model - spanish version) for sale here: [url]http://aukro.cz/super-zx-spectrum-128-2-1-5-mb-i2738723874.html[/url] Back s…
... reset circuit. Long and clear reset pulse is active after power-on ... press RESET button and before power-off.
- new ... don't have original ZX power supply, it's only computer ... cables.
Menu after power on:
[img]http://velesoft ... -
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 ... -
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 ... -
+2 (Grey) and AT/ATX PSUAny ideas on the best way to power a grey +2 board from an AT or ATX PSU? Looking at the schematic, I could do this one of two ways... 1: Bypass th…
... on the best way to power a grey +2 board from ... two ways...
1: Bypass the regulator (pins 1 and ... -
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 ... -
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 ... -
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 ...
