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Noisy PSUI recently picked up a 48k Speccy from eBay. It works fine but the PSU seems a little on the noisy side. I remember my old one gently humming back in…
It does sound like a transformer plate / lacquer ... psu is the large filter capacitor which had simply become dry ... -
Harlequin clone...PCB manufactured!Using Chris Smith's detailed schematics and project notes from the Harlequin... a Speccy fan in the United States by the name of Don (Superfo) has de…
... from audio sources like PC sound card, MP3 players, or tape ... and to add one electrolytic capacitor to improve RGB signal.
strange solution with bad spectrum +2 t.v. sound2 weeks ago I bought a British 128 K ZX-Spectrum +2. At first it didn't have sound on the t.v. RF output. Adjusting L5 (IC 11: MC1376 audio modulato…
... myself had to add a capacitor of 33 ... 47 ... wire (that transports the sound while loading). At the ... while listening to the computers sound (without loading a tape ... mixed with the computer sound. To avoid this I ... connected only to the sound input of the computer ...strange solution with bad spectrum +2 t.v. sound2 weeks ago I bought a British 128 K ZX-Spectrum +2. At first it didn't have sound on the t.v. RF output. Adjusting L5 (IC 11: MC1376 audio modulato…
... tried the capacitor that you suggested, but it removed sound on the ... perfectly, no noise and clean sound.
Next step will ...128k +2 (grey) Ear mod - New ULA and still problemsBverstee kindly sold me a 128K ula since the one in my +2 seemed to have a broken ear in. But even with the new ULA, I still can not load games throu…
... should think about adding a capacitor in series to the input ... you the output of the sound source
is sensitive to ... at the output of your sound source would shift the base ...+2 (Grey) S-video?I have a pretty good Composite/S-video to VGA adapter that does a nice work of running my retro machines on an old LCD screen. However, it looks best…
... /> Works very nicely without the capacitor on my little colour t ... .v.
With capacitor it get a black or ... works fine with very decent sound and bad colour.
Composite ...Diagnosing a strange software fault in a 48kHi, A friend gave me a 48k, which I am very keen to restore. The spectrum 48k was my first computer over 20 years ago and I owe my ability to code t…
... be because they are old. Sound outputs through the buzzer but ... start unless I had the sound input enhanced in some way ... might be a bad capacitor affecting the sound signal, but I never ...ZX +2 Grey with quiet ULA soundHi all. I come here for advice before messing up with the main boards and end up killing them for good. I got this grey ZX +2 with a very low ULA a…
... is used to prepare the sound for mixing with the RF ... ok, the problem might be capacitor C50 or resistor R61.ZX +2 Grey with quiet ULA soundHi all. I come here for advice before messing up with the main boards and end up killing them for good. I got this grey ZX +2 with a very low ULA a…
... is used to prepare the sound for mixing with the RF ... ok, the problem might be capacitor C50 or resistor R61.[/QUOTE ...zx spectrum 128+2a/b questionsIv just purchased a 128+2 and have only one game for it lol (Super stunt man). A few question if anyone can help.. 1)I'd like to run games through …
1) Sound socket is an output socket, ... Scart cable.
- Stereo sound. I don't think that ... to be played with mono sound, but...
- Unmixing video ... certain capacitor will avoid interferences. Note that you still have sound output ...Harlequin clone...PCB manufactured!Using Chris Smith's detailed schematics and project notes from the Harlequin... a Speccy fan in the United States by the name of Don (Superfo) has de…
... with a 250 ?F electrolytic capacitor between R8 and RGB ground ... one with a 560 pF capacitor between Q1 emitter and ground ... are fitting.
The sound level for Ear is a ...+2 (Grey) S-video?I have a pretty good Composite/S-video to VGA adapter that does a nice work of running my retro machines on an old LCD screen. However, it looks best…
... running (minus C31 the sound carrier coupling capacitor).
To generate ...Want a new old PC.Does anyone know of any good place that sell slightly older desktop PC's very cheap? The motherboard in mine is on its way out. Think there is a cr…
... HD, I unplugged the GFX, sound, DVD, card reader, swapped memory ... get a click click click sound from a relay, which I ... one loose leg on a capacitor, replaced it, but it made ...+2 grey rf out problemI got a kind of broken +2. it basically works, but with a annoying rf out problem. When screen goes black (eg. after border 0: paper 0 command) it l…
... as desoldering the capacitor that is leading the sound carrier signal to ... RGB the interferrence of the sound carrier and the color carrier ...+2 grey rf out problemI got a kind of broken +2. it basically works, but with a annoying rf out problem. When screen goes black (eg. after border 0: paper 0 command) it l…
... Ingo...
As for the capacitor.... can you tell me which ... % without it? Will there be sound from RF without it?
Centre video signal from composite modded 48KHi! I made this simple video mod some years ago,to have a composite output instead of RF(on 48k). --from this site-- [url]http://user.tninet.se/~vj…
... way, if I add that capacitor to the uhf changing in ... /> The 128k machines have a sound subcarrier mixed into the video ...Quick question on the IN #FF port fix for Spec+3 issue2Was wondering if the [b]IN #FF port[/b] fix shown here: [url]http://www.secarica.ro/html/plus3_hardware.html#inFFport[/url] applies to the Spectrum +…
... first got my +3 the sound was horrible. I did the ... same site ([url]http://www.secarica.ro/[/url])
Sounds pretty ...+3 Audio hates me with a passionHihi Since nobody seemed to have a spare +3B board, I've been trying to replace the audio entirely, aiming for a speaker inside the machine Since p…
... the [URL="http://www.secarica.ro"]www.secarica.ro[/URL] pdf and ... differences between the +2A/+3 sound circuit and the +2B/+3B ... /spectrum/+3sound/"]fixing the +3 sound[/URL] page. There are six ...+3 Audio hates me with a passionHihi Since nobody seemed to have a spare +3B board, I've been trying to replace the audio entirely, aiming for a speaker inside the machine Since p…
... the pulldown resistor and coupling capacitor for AY channel C (pin ... anywhere in the L-R sound stage, you can adjust their ...Black and white composite displayJust pulled out an old CRT display and tried my trusty rubber key on it (comp modded), im using one of those scart adapters for an xbox to accept the…
IMO the value of the capacitor is/was fine. If the ... not all models generate a sound carrier).
[I][B ...Buzzer sounds tips'n'tricksSo I have an ARM Cortex M3 with a buzzer connected to its GPIO pin. And because I read this forum I know that there is no need to add a separate buzz…
... . There's a resistor and capacitor in there that give it ... , you can build up the sound you want to play as ...Buzzer sounds tips'n'tricksSo I have an ARM Cortex M3 with a buzzer connected to its GPIO pin. And because I read this forum I know that there is no need to add a separate buzz…
... out. Nevermind the resistor and capacitor, those can be omitted. ... connected to get decent polyphonic sound.
[QUOTE= ... it has reached 0, continue sound loop
pop de ... Music Box).
Your sound loop should look roughly like ...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…
... coming in through the RF sound (that's probably fine ... /> The 48K doesn't output sound through the modulator, so hearing ... purchase. :)
The only sound it creates is from the ... check the voltages, replace any capacitor that looks remotely dodgy, and ...questions about +2 grey soundI have plugged my +2 into the speakers I use for my PC but I get a background humming sound. If I rewind a tape the humming noise gets louder and its…
... under sound noise in that link the description of the resistor/capacitor ...+2A musings; to repair, mod or trade?I grew up with a 48K Spectrum+, but it went to computer heaven many years ago. During my First Spectrum Renaissance (when I was a student in the lat…
... +2A/+3 [url=http://www.secarica.ro/html/plus3_hardware.html#inFFport ... not perfectly smoothly, and the sound is a bit glitchy. Attempting ...Possible dodgy +2 - resets when loadingSo I have a grey model +2 with a recently refurbed tape deck (new belts and cleaned heads). It might be a product of bad loading, but from what I ca…
... impossible to decide if a capacitor is sound from just doing a ... circumstances, for example when the capacitor is close to a component ... case the pressure inside the capacitor will build up and ... does not mean that the capacitor is still within specifications. ESR ...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…
... =1024MAK;674959]
[U][B]Sound noise[/B][/U]
capacitor to get a smooth power ... line. Switching this big capacitor to the 5V line would ... line as well as a capacitor of 100pF from this line ...+2A/+3 composite modHi, Anyone has experience doing a composite output mod for +2A/+3? (yes.. I also have a working RGB) A while ago I did one based on the instruction…
I made the video out mod on my +2A too, the mod with 1 transistor, 3 diods and 2 resistors (Sami Vehmaa), picture was not perfect until I separated the sound and video by removing the capacitor C24 too...+2A/+3 composite modHi, Anyone has experience doing a composite output mod for +2A/+3? (yes.. I also have a working RGB) A while ago I did one based on the instruction…
... I separated the sound and video by removing the capacitor C24 too ...Almost no picture on a toastrack Issue 6UI?d need some help with a toastrack, that hardly shows any picture on both the RF and RGB. It?s totally distorted. I had this before and I remembered…
... a failed attempt to reduce sound interference on the video picture ... /> C121 is coupling the modulated sound carrier signal from the "first ... that one is actually a capacitor or an inductor.
