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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 …
My Spectrum is "almost" booting, just when ... be missing it's -5V, the +12V, +5V are ok
Spectrum issue 3
Any ... -
Powering a Spectrum with 5v?I live in the States, but I'm originally from England. My original Spectrum is still at my mum's house in the UK, and I was thinking of asking her t…
... br />
My original Spectrum is still at my mum ... is actually regulated down to 5v (and a lot of ... and inject a regulated 5v into where the voltage output ... was?
Regulated 5v PSU's are everywhere, because ... PAL input, so a 5v mod and a composite mod ... -
How looks a Spectrum shown in a TFT VGA monitor?Some people has just asked me if a cheap Dealextreme VGA Box is capable of showing a decent picture from a ZX Spectrum. Well, I've just modded one r…
... decent picture from a ZX Spectrum.
Well, I ... just modded one rubber-key Spectrum for composite video output ... just after switching on the Spectrum. No params have been tweaked in ... Some detail... As I have no skills programming this computer, I ... -
South African Spectrum FORTHI was wondering if this has any value? Seems to be a South African "edition" of Spectrum Forth by "ZX Africa (PTY) LTD." This tape was purchased wh…
... a South African "edition" of Spectrum Forth by "ZX Africa (PTY ... when we bought our ZX Spectrum new back in 1983 in ... tape came along with the spectrum, no inlay card in the cover ... -
48k Issue 4A power supplyHi, I just repaired a 48k Spectrum+ with an Issue 4A board. The computer worked but the picture was mono with bad contrast and bad synchronizing. I …
... /> I just repaired a 48k Spectrum+ with an Issue 4A board ... where only 1.7V and no -5V. At any time before someone ... therefore removed the 12V and 5V from the Rams. So only ... -
Spectrum+ PiInspired by Hammer09'sd weekend project http://www.worldofspectrum.org/forums/discussion/comment/832342/ and Tynemouth Software's Spectrum+ Pi https:…
... -pi-inside-sinclair-zx-spectrum?ref=shop_home_active_8 I decided ... used a dead, empty case Spectrum+, no Spectrum was hurt (much) during ... /uk/listing/231281808/zx-spectrum-plus-usb-keyboard-conversion? ... key mapping between normal Spectrum functions and a USB ... -
48K Speccy not workingHey, A few months ago (hope it´s not to late) I was loading a game into my speccy and from one moment to another it stopped working! I unplugge…
... 's PSU of his original Spectrum 128+ outputs 9V, +3 ... output and it should give +5V.
Alternatively you may ... .
If there's no +5V, this can mean one of ... (blue ones) on the +5V line is shortened. It's ... voltage on it, if +5V appears on it, then 7805 ... -
Broken ZX Spectrum? :(Hi! I bought a 2nd hand ZX Spectrum half a year ago. It worked perfectly fine when I first tried it. I put it back in its box which it was sent in, …
... give it power[/quote]
No, I'm talking aboyut buzz ... to do. The Spectrum generates +5V, +12V and -5V from the 9V supply ... -
7805 Regulator HelpI am hoping to replace the 7805 regulator in my issue 3 48K Spectrum soon. Unfortunately I don't know exactly what to buy to replace it with (my fat…
... R785.0-1.0 as 5V 1A version from 'Conrad.nl ... just a replacement for 7805, no further parts needed. I did ... of the Recom in my Spectrum. No Heatsink needed anymore, but costs ... 3 A Type in other Spectrum 128K with Heatsink. It is ... -
Add horizontal hardware scroll to ULA+In this case we must read a bit in the ULA+ for test if supported. And the future software that uses it must have to branch: 1. If hardware scroll i…
... of the spirit of the Spectrum.[/QUOTE]
And... which ... is the "spirit of the Spectrum"? I find that a rather ... FPGA, and this also means no 5V tolerant, so you have to ... +drivers (resistors?) to make inputs 5V tolerant. -
Are Russian Clones a collector's piece?Hi Guys, I'm over at a mate's tonight drinking decent craft beer and we are (naturally) talking about Spectrums. I mentioned Spain, USA and Russia …
... ago to use for the Spectrum SE prototype. Given that pretty ... a twister board to connect Spectrum peripherals to it. Alternatives are ... port. But it's got no 5V so auto-fire doesn't ... -
Spectrum 128K +2 problemhello, i am try to repair my spectrum 128k +2 grey, i remove all ram chips and i have some new ones spares, now i have remove all ram chips, i want …
... okay, this can only be no +5V or 0V supply to the ... CPU on pin goes from +5V to 0V and then back ... to +5V when the reset button is ... to be done with the Spectrum [U][B]turned off[/B ... each data line to the +5V line, the 0V line, all ... -
Joystick Interfaces on +2AJust found out that my DK'Tronics joystick interface doesn't want to play with my +2A (black). The Kempston port works OK, but not the Sinclair port…
... actual Kempston IIRC) use +5V as a common.
... the common. But has no +5V feed to the connectors.
5V line and the fire ... button.
The +5V on pin 7 is correct ... the small number of Spectrum joystick interfaces that I ... -
Smokin... more 48k woesHi, it looks like I've converted another Spectrum 48K+ into a smoke machine. I'd been rebuilding an Opus Discovery unit and everything looked good. …
... , you got me :???: I have no idea how you are getting ... you have fitted to your Spectrum. The -5V line will end up ... 0V.
If you no longer have a heatsink to ... electrolytic capacitors:-
For the +5V use C34 (22uF)
For ... -
Newbie with a faultHi all just joined after digging my spectrum out of the loft after 30 years, it was put up there because it had a common fault I remember from back i…
... there.
There is no hissiy or buzzy sounds ... at 3.5MHz like the Spectrum uses.
Personally ... Spectrum is silent, it's usually a symptom of their being no -5V ... and not moving, the -5V line probably [i]is[/ ... be to open the Spectrum and find out if ... -
Opus Discovery "the big switch on" (after 20 years)I have a few of these Opus Discovery's with different Eproms in that have not been swiched for 15-20 years or so . I am in no rush to switch any on …
... inputs to +5V and +12V regulated outputs for the Spectrum. It ... convert the +5V to an -5V supply for the Spectrum's -5V rail. This ... was no longer using the ZX PSU with the Spectum, the Spectrum ... />
The original ZX Spectrum PSU was modified slightly and ... -
Opus Discovery "the big switch on" (after 20 years)I have a few of these Opus Discovery's with different Eproms in that have not been swiched for 15-20 years or so . I am in no rush to switch any on …
... inputs to +5V and +12V regulated outputs for the Spectrum. It ... convert the +5V to an -5V supply for the Spectrum's -5V rail. This ... was no longer using the ZX PSU with the Spectum, the Spectrum ... />
The original ZX Spectrum PSU was modified slightly and ... -
Pentagram and UnderwurldDoes anyone have a copy of these 2 games. My spectrum no longer works and wanted copies of these 2 in tz format so that I can play on my PC usinf sp…
... 2 games.
My spectrum no longer works and wanted copies ... -
If a C64 can do it...Forgive me if this isn't the right section. We've seen coders surprising us over and over again with excellent demos and things that a few years ago…
... to be 'impossible' on a Spectrum. And I'm not talking ... be done on a real Spectrum without any extra hardware. We ... be done on a Spectrum?
No, I won't start ... have been made on a spectrum already, and I missed it ... -
Which packer is the best?Hello folks, we are currently preparing an update to our Disk-Magazine SCENE+. However, looks like more and more coder groups in the Spectrum-Scene d…
... more coder groups in the Spectrum-Scene don?t pack their ... should be working on normal Spectrum, no Pentagon or other clones. And ... -DOS. Why we still have no way to emulate TR-DOS ... ]www.sintech-shop.de/home/spectrum-user-club.html[/url] -
zx81 loading from cd questionOK, I can convert tzx files to wav, burn them to cd and load them into my Spectrum, no problems. But is there a way to get ZX81 .p files onto cd the …
OK, I can convert tzx files to wav, burn them to cd and load them into my Spectrum, no problems. But is there a way to get ZX81 .p files onto cd the same way?
cheers
Chris -
Air Cooled Spectrum, No #01 of twentyI want to add a bit of friv to our quirky heritage, knock as you like. Here is my first offering [url]http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewIt…
I want to add a bit of friv to our quirky heritage, knock as you like.
Here is my first offering
[url]http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&rd=1&item=230285381131&ssPageName=STRK:MESE:IT&ih=013[/url]
'Videgame Nation' at the Urbis in ManchesterI mean 'VIDEOGAME nation'! This exhibition starts next week. I've lent PILES of stuff for it, I knew it all come in useful SOME day, and you can ev…
... Crash Spectrum Magazine no.12-22
Box containing Crash Spectrum Magazine no. 23 ... -34
Box containing crash spectrum Magazine no. 35 ... -58
Box containing crash spectrum no. 59-64, 76,67,70 ...Games for saleHi I have the following games for sale, please PM if interested; A Harvesting Moon Cass Powerplay Spectrum includes "Faerie" Africa Gardens Cass G…
... Ashkeron! Cass Mirrorsoft Spectrum
Assemblage Cass Artic Spectrum
Astron ... Hewson Consultants Spectrum
Dun Darach Cass Gargoyle Spectrum No manual ( ... just the loading card)
Encounter Cass Severn Software Spectrum ...writing an emulator-newbie needs helpHi, this is my first post here. I decided to write a minimalistic emulator of ZX Spectrum-no emulation of advanced peripherals, no emulation of sound…
... emulator of ZX Spectrum-no emulation of advanced peripherals, no emulation of sound ... different parts of "World of Spectrum" page, but I'd ... O? When it comes to Spectrum emulation, most pages I' ... what does it contain? ZX Spectrum bios, operating system, some sort ...Kempston/Atari to Sinclair joystick adapterHi all, I've got a +3 and two competition pro gamepads (atari/kempston interface) so I want to build an adapter. As far as I can tell I just need to…
...
6 - fire
7 - +5v
8 - ground
9 ... /c
There's no 5v on the sinclair - what does ...Repaired some 128K's todayI have lot's of ZX Spectrums laying aside with some more complex defects. Today I decided to try to fix some of them. I thought: why not share my ex…
... The CPU did nothing although 5V, 12V and the clock ... discovered a power problem: no 5V and no 12V, allthough the ... measured the resistance between 5V and 0V and it ... /> I started cutting the 5V cupper lines to the ram ... Problem is that the 5V that flows in the ...Issue 3 power problemHi all, I have an issue 3 board with an odd power problem, I have no -5V in fact, measuring the voltage on this line leads to a surprising result : …
... power problem, I have no -5V in fact, measuring the ... these out too, but still no -5V.
So ... Issue 3 board, but still no -5V.
I ... have snipped out the -5V decoupling caps for the RAM ... />
Does the -5V go to anywhere other than ...Strange INK behaviourThis weekend I hooked up two Sinclair ZX Spectrum with Interface 1 to try out the networking capabilities, and I ended up using parts of the Net Game…
... computers to communicate and Spectrum no 1 sent his coordinates ... and received the coordinates from Spectrum no 2, and of course ... on Spectrum no 2, but not on Spectrum no 1.
Spectrum no 1 ... PRINT on two separate lines Spectrum no 1 wrote them out, ...New version Emulator ZEsarUX-1.0Hi I have uploaded a new version of my Spectrum/ZX80/ZX81 emulator. This is a major stable version, with real timing for all the models and with hi-…
... hi-res colour support for Spectrum (rainbow). It can be ... memory and real timing for Spectrum, ZX80, ZX81
Improved ... video display (rainbow) for Spectrum and ZX80/81 (non standard ... other oddities of the Inves Spectrum +: no contended memory, snow in ...
