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Issue two picture qualityDoes anyone know if issue two and earlier spectrums have worse picture quality (in general, beside colours) compared to issue 3 and later? I mean on…
Does anyone know if issue two and earlier spectrums have worse ... />
I mean on both issue two speccys that i have, i ... are normal for this early issue. Also i want to mention ... adjusted through the resistor and capacitor trimmers. -
Video fault on issue two ZX boardI've trawled the Internet and drawn a few blanks as to where to look to resolve the fault with my issue two board. I'm hoping a few of you knowledgea…
... resolve the fault with my issue two board. I'm hoping a ... I tried it with a capacitor, but I've since stripped ... and fitted a 4.7uF capacitor as recommended too. I've ... swapped C65 for a 22uF capacitor.
I've checked ... -
Spectrum Issue two problemI managed to bring back to life a issue two spectrum (at least the power supply cirquit). The screen is now crystal clear (after replacing all the el…
... bring back to life a issue two spectrum (at least the power ... -
Low speaker volume on a repaired issue two speccyI repaired an issue two speccy which was totally wrecked and missing many parts. I installed the missing parts (resistors, transistors) and replaced …
I repaired an issue two speccy which was totally wrecked ... according to the modification for issue two pcb (for better cirquit performance ... that i removed from an issue 3b board that i have ... such)?
On another working issue two that i have, the speaker ... -
Issue Two - You're thoughts on...Football Manager. We want you're thoughts and views on 'Football Manager' for issue two, love it or hate it let us know what you think. Memories, po…
... views on 'Football Manager' for issue two, love it or hate it ... -
Trying to fix Spectrum Issue TwoHello everybody, I bought from eBay three Spectrums - one is Issue Two and the other two are Issue 3. The Issues 3s look like they are working but t…
... Spectrums - one is Issue Two and the other two are Issue 3. The Issues ... they are working but the Issue Two not.
So I ... -
WANTED: ULA chip for Issue two SpectrumHello, I fired up my Issue Two ZX Spectrum a couple of weeks ago, and it seems my ULA chip is failing again. Has anyone got a spare working chip the…
Hello,
I fired up my Issue Two ZX Spectrum a couple of weeks ago, and it seems my ULA chip is failing again. Has anyone got a spare working chip they'd be willing to sell? Please PM me if you can help.
Regards,
Kamil -
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] -
New video about S-video modification on Issue two 48K Spectrum.I just finished an s-video modification on an Issue two 48K Spectrum so I made a video about it. Most of the technical details are in the video; if y…
... s-video modification on an Issue two 48K Spectrum so I made ... -
XP POWER SR10S05 will not fit on Issue Two in a rubber key caseSo, FOR SCIENCE I decided to see if an XP POWER SR10S05 would fit on my Issue Two board in a rubber key case. Especially since it seems to be *juuuu…
... SR10S05 would fit on my Issue Two board in a rubber key ... me because I have an Issue 3 48k which will ... I have now put the Issue Two into the 48k+ hard ... key case that the Issue 3 came from.
... rubber key case on an Issue Two board (you might be!)... ... -
Issue with Issue Two[img]https://dl.dropboxusercontent.com/u/25300140/Spectrum/Edited_ImageEasyImageEditor_20141111_84.jpg[/img] I'm working on an Issue Two that was sh…
... /> I'm working on an Issue Two that was showing black paper ... -
Issue Two 16K doesn?t like any keyboardI have a strange Issue Two 16K Spectrum here, that doesn?t like any keyboard. With the original keyboard fitted, it boots, but no key works. Okay, I …
I have a strange Issue Two 16K Spectrum here, that doesn? ... -
Three Spectrum main boards (Issue Two, 3B and 4A)I will be offering three partially tested Spectrum main boards (Issue Two, 3B and 4A) on Ebay. All boot to the Sinclair (C) message. All fully popula…
... partially tested Spectrum main boards (Issue Two, 3B and 4A) on Ebay ... -
ZX Spectrum 48K,issue two - can't get it repairedI have an issue 2, which has some weird very small PCB hanging over the Z80. Some wire go to various places on the big PCB, two go to connections 36 …
I have an issue 2, which has some weird ... places on the big PCB, two go to connections 36 and ... -
ANN: ZXF Issue 2 publishedIssue two of ZXF (free spectrum magazine - PDF format) has now been uploaded and awaits your inspection. The new URL for the site is [url="http://ww…
Issue two of ZXF (free spectrum magazine - ... page.
Contents this issue include:
* Eight pages ... attention, work on the Christmas issue will be begining
very ... -
Spectrum board Issue numbersWhilst cataloging my spectrums I am documenting the issue numbers of the motherboards. so far I have (all spectrum or smegtrum + Issue TWO 3 3B …
... spectrums I am documenting the issue numbers of the motherboards.
Issue TWO
3
3B
issue 1 and an issue 4 or 5A.
Retro Gamer issue two found in a charity shop!Just bought, for ?1 the cover disc to Retro Gamer Issue 2 - in a charity shop in Bedford. Did not even realise that it was THE retro gamer at first,…
... cover disc to Retro Gamer Issue 2 - in a charity shop ...Issue 2 SubmissionsIf you have anything you would like to contribute to Issue two, game reviews, general speccy musings, how to fry an egg on a +2 we need it in by the …
If you have anything you would like to contribute to Issue two, game reviews, general speccy musings, how to fry an egg on a +2 we need it in by the 7th of August. If you don't get it in by then don't get too upset, there's always issue 3.Help identifying hardware peripheralA few months ago someone gave me all their Speccy stuff. The Spectrum itself was broken, but I got with it quite a few useful peripherals. Among thes…
... ), and a capacitor or two. The board is marked with "ISSUE 2" and ...Spectrum 16K Issue 3Hi! I just received a Spectrum 16K, which turns out to be an Issue 3. Is it really that rare? If not, I?d like to upgrade it to 48K. There are 12 em…
... turns out to be an Issue 3. Is it really that ... chips from a (bad) 48K Issue Two be taken? I found a ...Which ULA to fit in which issue SpectrumI spent a little while studying the resistor changes on page 30 of the ZX Spectrum 48K service manual. They all concern aspects of the video circuit …
... board.
All issue one boards are designed for ... anything earlier.
Issue two is the board with the ... although this was made after Issue two ceased production. The quick way ... to check which version your Issue two board is configured for ...Spectrum Composite video connections?Is it possible to modify a standard 48K spectrum to give composite video output? In my experience i have found the quality of the picture out of the…
... C25 axial electrolytic capacitors (the two blue capacitors on the most ... the board issue you spectrum is, it can be two 22uF or ... it can be just one capacitor (C25, issue two). Just see what you ...Issue two picture qualityDoes anyone know if issue two and earlier spectrums have worse picture quality (in general, beside colours) compared to issue 3 and later? I mean on…
... 168246]Does anyone know if issue two and earlier spectrums have worse ... />
I mean on both issue two speccys that i have, i ... are normal for this early issue. Also i want to ... adjusted through the resistor and capacitor trimmers.[/QUOTE]
...Help identifying hardware peripheralA few months ago someone gave me all their Speccy stuff. The Spectrum itself was broken, but I got with it quite a few useful peripherals. Among thes…
... ), and a capacitor or two. The board is marked with "ISSUE 2" and ...Video on single transistor composite video modification for 48K SpectrumsI made a video on the single transistor composite video mod, using an Issue two Spectrum although it applies to all issues. Much better than the sing…
... on the absence of a capacitor and/or 75 ohm resistor ... lower. This is applied across two resistors, the 75 ohm resistor ... -down resistor R53 in the issue two circuit diagram is 390 ohm ... resistor R64 with a 22uF capacitor C25 to provide some smoothing ...Dot crawl?Hi, As I'm rather new to the hardware of the spectrum, just to confirm: is this video showing "Dot crawl" ? [url]https://www.youtube.com/watch?v=_U…
You can adjust the ULA clock frequency on an Issue one or Issue two Spectrum by adjusting TC1. On the others it is fixed; you would have to replace a capacitor.Composite picture qualityI have read many many discussions here about the composite video modification of the Spectrum 16/48K models. I have choosen one of the simplest comp…
... (C5 to C8 on the issue two schematic that I am looking ... (C1 to C4 on the issue two schematic that I am looking ... " for a "decoupling" capacitor. A 47nF ceramic disc capacitor is not that ...Dot crawl?Hi, As I'm rather new to the hardware of the spectrum, just to confirm: is this video showing "Dot crawl" ? [url]https://www.youtube.com/watch?v=_U…
[QUOTE=rga24;771509]You can adjust the ULA clock frequency on an Issue one or Issue two Spectrum by adjusting TC1. On the others it is fixed; you would have to replace a capacitor.[/QUOTE]
But would that help in reducing the dot-crawl effect?Modern PSUHello everyone, I'm looking for a modern PSU for my Spectrums and my dual set of 3.5'' floppy drive+HxC floppy emulator. The one for Spectrum should …
... transformer, Diode Bridge and a capacitor. Every Spectrum user will have ... your case with one or two power supplies. I know with ... setup I have a Spectrum Issue two board with a floppy disk ... initialised. It is a timing issue. In my case the floppy ...Issue 1 oddityHello to everybody, I have a very first under my hands - a broken Issue 1. Apart from the classic "broken lower RAM" syndrome which will be easily t…
... trying to get an Issue One Spectrum to calibrate ... . Brand new LM1889N. Variable Capacitor borrowed from Issue Two board.
... useful tip for calibrating issue one and two Spectrums with no ... .
For an Issue One though, I think sometimes ...
