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Fully refurbished ZX Spectrum 48K boards incl. ULA- Including ULA (version that [URL="http://www.bytedelight.com/?p=41"]corresponds to the board issue[/URL] - click to find out more about ULA version…
- Including ULA (version that [URL="http://www. ... to find out more about ULA versions)
- All new electrolytic ... , 3B, 4A, 4B, 4S, 6A (no issue 2). If you prefer ... ://www.bytedelight.com/?product_cat=zx-spectrum-48k-refurbished-boards[/url]
[/SIZE ... -
ZX Spectrum 48K Issue 4B No soundHi, I have a ZX Spectrum 48K Issue 4B without sound. I tested the ULA on another Spectrum and works fine, tested the speaker and it has the correct …
... Spectrum 48K Issue 4B without sound.
I tested the ULA on another Spectrum ... from pin 28 ULA to emitter of TR7 no faults. TR7 tested ... -
Spectrum 48k SeettingGot an issue 2 speccy on the bench that had a poorly ula, changed that, also changed tr4 and tr5 (had no oscillator) now it just resets over and over…
... poorly ula, changed that, also changed tr4 and tr5 (had no oscillator ... across the z80 and its no different altho i get same ... /> EDIT: oops title should say Spectrum 48k Resetting. -
Russian clone of ZX-Spectrum 48kThe classic russian clone of ZX-Spectrum 48k [URL="http://sblive.narod.ru/ZX-Spectrum/Leningrad48k/Leningrad48k.htm"]http://sblive.narod.ru/ZX-Spect…
... classic russian clone of ZX-Spectrum 48k
[ ... sblive.narod.ru/ZX-Spectrum/Leningrad48k/Leningrad48k.htm"] ... .narod.ru/ZX-Spectrum/Leningrad48k/Leningrad48k.htm[/ ...
Spectrum clone, build with simple logical compoments! no ULA chip needed ... -
Diagnosing Spectrum 48k (faulty RAM chip?)I have a Spectrum 48k (I believe it may be an upgraded 16k model) that doesn't work, and never has ever since the owner gave it to me. When you turn …
I have a Spectrum 48k (I believe it may be ... and there seem to be no problems electrically, it just looks ... the socketed chips (except the ULA, CPU and ROM since they ... -
ZX Spectrum 48k - no CLK signalHello I'm trying to repair ZX Spectrum 48 mainboard issue 3B. When i check signal with oscilloscope on X1 or on ULA pin 39. I get stable 2V no clock…
... 'm trying to repair ZX Spectrum 48 mainboard issue 3B.
ULA pin 39. I get stable 2V no clock pulses ... . Can broken ULA chip be the ... cause of no clock signal?
Fixing my old ZX Spectrum 48K issue 4AHi Guys, I trying to fix my old Spectrum 48K. Looks like my dad used a wrong power supply as the ULA had a bit missing and so did the 7805. So I rep…
... trying to fix my old Spectrum 48K.
Looks like my ... wrong power supply as the ULA had a bit missing ... had a booting system but no keyboard.
Ordered a ... and installed it but still no reaction to pressing keys.< ... keys not working and no click as I push ...ZX Spectrum 48k ULAlooking for a ZX Spectrum 48k ULA Thanks Phil
looking for a ZX Spectrum 48k ULA
Thanks
PhilZX Spectrum 48K +Hi, I have a ZX Spectrum 48K + which I bought like a million years ago (1984) My Spectrum has been out of duty for quite some time and I guess I ke…
... />
I have a ZX Spectrum 48K + which I bought like a ... million years ago (1984) My Spectrum has been out of duty ... get the old 48K fixed! But I have no idea where to ... no place in the neighbourhood where I can send in my spectrum ...Sinclair Spectrum 48K with new membraneI am selling the 48K Spectrums I have on ebay in favour of Emulation. ;-) All have Composite mods and brand new membranes! Heres the first one...…
I am selling the 48K Spectrums I have on ebay ... first one.....
Sinclair Spectrum 48K with new membrane fitted.
Here is a fully working 48K Spectrum with Brand New membrane fitted ... output (better picture qaulity) and no tuning of tv set is ...Spectrum 48K input voltageI have a power supply that is rated 9,5 Volts DC. With no load it outputs about 9,86 Volts. Is it safe to use it for ZX Spectrum 48K? (it can do …
I have a power supply that is rated 9,5 Volts DC.
With no load it outputs about 9,86 Volts.
Is it safe to use it for ZX Spectrum 48K?
(it can do over 2 Amperes)Adrian Mole Secret Diary Kit ZX Spectrum 48k Box SetThe eBay blurb: Adrian Mole Secret Diary Kit aka The Growing Pains of Adrian Mole ZX Spectrum 48k Adventure - Mosaic Publishing / Level 9 This is t…
... of Adrian Mole
ZX Spectrum 48k Adventure - Mosaic Publishing / Level ... in smaller cassette packaging with no extras, but this is ... leading adventure writers for the Spectrum - Level 9. The game ... diary and other items have no writing in them. Everything ...Repair options for my own dear old Spectrum 48k?Hello all, This is my first post to this wonderful forum, which is part of a truly great website! My name is Arnold, and I live in Utrecht, The Nethe…
... .
My ZX Spectrum 48K doesn?t function anymore. It ... two options in repairing this Spectrum:
One: very simple ... with one from a working Spectrum.
Two: identifying malfunctioning ... measured in a working Spectrum). The ULA gets quite hot in ...Spectrum 48k+, kempston interface and joystick for sale!I have put these items out on Ebay with no reserve and starting price 0.99. So grab yourself a bargain! Spectrum 48k+, kempston interface Quickshot…
... items out on Ebay with no reserve and starting price 0 ... yourself a bargain!
Spectrum 48k+,
kempston interface
Quickshot ... any questions about the items. No sale outside ebay though!Broken or upgraded ZX Spectrum 48kHello First i want to say hello to everybody. I have a new ZX Spectrum 48k in my collection. Seller said that it is broken (no picture). I have this…
... ZX Spectrum 48k in my collection. Seller said that it is broken (no ... picture). I have this Spectrum disassembled and look ...Whole New Horizons! The only ZX-Spectrum 48k intro competition with a theme![B][I]MacBuster^MagicSoft/Extreme[/I][/B] brings you an amazing action!!! "Imagine yourself it is January or 1982 again and... No! I say no - you're…
... or 1982 again and... No! I say no - you're not that ... and for pair of big (no, I mean *really* big!), warm ... with every sold [B]ZX Spectrum 48k[/B]. AND you have just ... your time[/B] - grab your 48k, a tape recorder, an assembler ...ZX Spectrum 48k and WinTZXHi everyone, I recently got myself a ZX Spectrum 48k, and I have heard that there is programs that let you convert spectrum roms to wav files so that…
... recently got myself a ZX Spectrum 48k, and I have heard that ... programs that let you convert spectrum roms to wav files so ... the wave file, but to no avail.
The only ...ZX spectrum 48K ULAhi everyone I WANT a 48K working ULA. My one needs replacing.. Thanks
hi everyone
I WANT a 48K working ULA. My one needs replacing..
ThanksZX Spectrum 48K, issue - works fine till it gets hot (?)ZX Spectrum 48K, issue 2, works just fine, tested with Winston's diag board. At a certain moment in time however, it seems to run hot and stalls. Whe…
ZX Spectrum 48K, issue 2, works just fine, ... .
Voltage regulator and ULA both get very hot, but ...ZX Spectrum 48K clone and test resultsHi! This is my first post, so, first of all, I'd like to say hello to the whole community! I am Alessandro Dorigatti from Italy and I'm developing …
... 'm developing a new ZX Spectrum 48K clone based on the information ... of Chris Smith "The ZX Spectrum ULA: how to design a microcomputer ...spectrum 48k line in port not workingI have a second revision spectrum 48k,the line in port doesnt work their is absolutely no noise coming in but the port looks clean and all the solder…
I have a second revision spectrum 48k,the line in port doesnt work their is absolutely no noise coming in but the port looks clean and all the solder joints look ok.
Any ideas?For Sale: ZX Spectrum 48k (Rubber) - MODDED!Hi I have a spare ZX Spectrum 48k original rubber model for sale. It has that video mod so you can plug your spectrum into a composite video connect…
... /> I have a spare ZX Spectrum 48k original rubber model for sale ... so you can plug your spectrum into a composite video connecter ... video cable only (no psu). I have no idea how much this ...Spectrum 48k Issue 4S?I just recieved a Spectrum 48K that had the bottom case from an issue 1 and the top half from a later issue, and the main board is 1983 Issue 4S. I a…
I just recieved a Spectrum 48K that had the bottom case from an issue 1 and the top half from a later issue, and the main board is 1983 Issue 4S. I am curious in what way it differs, as there are no schematic for issue 4S on this site.Spectrum 48k PSUHi, can anyone suggest an alternative off the shelf power adapter that will be compatible with the ZX Spectrum 48k? I've just picked an old machin…
Hi, can anyone suggest an alternative off the shelf power adapter that will be compatible with the ZX Spectrum 48k?
I've just picked an old machine up with no PSU.
Jidea: new gaming interface for ZX Spectrum (48k)First of all, I am not an expert this is just an idea of what I would like to see happening in the modern era of the ZX Spectrum. A compact, small, …
... important features to your ZX Spectrum (48k):
- USB ports with ... screen in front of the Spectrum. Meaning:
USB ... placed on top! In fact no ports apart from hidden micro ... have cables hiding the ZX Spectrum screen. The best place for ...ZX Spectrum 48K board Issue Two - spider modI have a working Spectrum 48K Issue Two for sale on Amibay. It?s an early version with an ULA 5C102E and the "spider-mod" fitted. [URL="http://www.a…
I have a working Spectrum 48K Issue Two for sale on Amibay. It?s an early version with an ULA 5C102E and the "spider-mod" fitted.
[URL="http://www.amibay.com/showthread.php?t=57438"]http://www.amibay.com/showthread.php?t=57438[/URL]ZX Spectrum 48k tape loading issueHi guys I have refreshed a ZX spectrum 48k with a new keyboard layer and front case. The machine will power up and seems to work good. Unfortunate…
... /> I have refreshed a ZX spectrum 48k with a new keyboard layer ... checkered border on screen and no loading sound.
Any ...Spectrum 48k Clock SpeedSo I was reading the [url="http://www.worldofspectrum.org/pub/sinclair/technical-docs/ZXSpectrum48K_ServiceManual.pdf"]Spectrum 48k Service Manaul[/u…
... /sinclair/technical-docs/ZXSpectrum48K_ServiceManual.pdf"]Spectrum 48k Service Manaul[/url] and came ... the logic
gate array (ULA) and has a standard three ... wrong isn't it? The ULA gets a 14MHz clock but ... in the era that the Spectrum came out (they are of ...Issues with Spectrum 48K on SCART input of LCD displaysHi *! I'm new to the forums, but not new to ZX Spectrum. I have bought a ZX Spectrum 48K in 1983 and own it since. It was stored some 20+ years on…
... have bought a ZX Spectrum 48K in 1983 and own it ... instead, I tried connecting the Spectrum to 2 different devices with ... become more frequently with the Spectrum heating up.
I ... soldering, but if there's no other way than replacing capacitors ...ZX Spectrum 48K it only shows colored barsHello, I'm new to the forum and I need help with a ZX Spectrum 48K which I bought recently unfortunately defective. I want to mention that before t…
... need help with a ZX Spectrum 48K which I bought recently unfortunately ... RAM issue or (worse ) a ULA one.
I checked voltages ... the RAMs or/and the ULA processor?
Thank you ...
