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Settings on oscilloscope to see composite video signalHello, Learning a bit more about my new Owon digital 2 chan. oscilloscope. Would like to know what settings I should use to view a composite signal…
... use to view a composite signal.
Under settings menu ... , etc..
Composite video signal is analog, correct?
Mainly ... see the comp. signal itself and any interference/noise etc... that ... may be present in the signal.< ... -
zx spectrum 48k interference during first two minutes of warm upi have a issue 3B 48k that i am looking at during the first two minutes (approx.) of warm up there is interference on the screen (tried to take a pic…
... .) of warm up there is interference on the screen (tried to ... RF didn't find a signal ..i have not yet replaced ... -
InterferenceCan anyone tell me how to get rid of those horrible lines on the +2a? I'm sure these are interference from something but I just cant get rid of them.…
... ? I'm sure these are interference from something but I just ... -
Crappy composite/TV signal on grey +2 machineI got a grey +2 machine from eBay a couple of days ago. It's working fine, but both the TV signal and the composite signal taken from the monitor con…
... both the TV signal and the composite signal taken from the monitor ... -
Composite Signal from Spectrum 48k Hi, Just a quick question for you all. I have a nice new LCD Monitor which has Scart. composite and S-Video inputs on it and I'm using some of my …
... on it via a composite signal. I know you can modify ... 48k and get a composite signal from the RF modulator but ... you can get a composite signal from the edge connector and ... to the fact that the signal from the edge connector isn ... -
128k dead, no TV signalI got 128k spectrum (heatsink model) from a friend of mine. He told me that speccy is dead, and he doesn't know what's wrong with it. When I plugged…
... . On TV there is no signal of any kind. Almost there ... ). If there is no TV signal from speccy I assumed that ... -
+3 radio interferenceI have experienced that every time I turn the +3 on, my police scanner goes nuts. The +3 obviously sends out quite a lot of interference. Today I …
... out quite a lot of interference.
Today I loaded ... problems getting approved regarding to interference nowadays. -
Picture interference on red areas.I recently got a 48K Speccy off eBay, did a composite mode and it seemed to work OK, but then my TV had to go off for repair so I didn't use it for a…
... there's some terribly scratchy interference lines in the large red ... -
Help me understand ZX RGB signal (long)This will be a long post so please bear with me and most importantly help me. I have a 128K+ and +2A that I'm trying to get working with my 15kHz RG…
... to supposedly provide RGB SCART signal - these cables are from ... rgbcgatovgac.html[/url]
Signal Requirements:
RGB: 0.7Vpp ... when SCART devices display composite signal, but not when using ... maybe the final SCART signal levels are different between ... -
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…
... adjust themselves to the input signal.
[img]http://www.zxprojects ... vanished. If you see any interference pattern here, it's because ... -
Broken +3I have noticed that some members on this forum prefer to repair Spectrums instead of just buying another one from ebay. I would like mine fixed at so…
... second. Also the screen has interference each half second transition. The ... the screen to flicker with interference but does not effect the ... flicker and the video output signal becomes randomly interrupted when reset ... -
S-Video kit for 128k modelsAs discussed in this thread: [URL]http://www.worldofspectrum.org/forums/showthread.php?t=33768[/URL] My arm has been twisted to do an s-video mod ki…
... the video chip. Routing the signal to the modulator can position ... back is bound to cause interference issues I'd think.
signal would have to be taken ... ), on the +2 the composite signal can still be taken from ... -
RF signal now analogue has goneAnyone tried tuning in their speccies now the analogue signal has gone? Has it improved?
Anyone tried tuning in their speccies now the analogue signal has gone? Has it improved? -
Internal amp and signal cleaner for tape inHello! Is there known to work INTERNAL schematic which cleans signal from tape in and amplifies it. I need such thing so i can load from my smartpho…
... work INTERNAL schematic which cleans signal from tape in and amplifies ... -
Bad signal on my ZX Spectrum+ 48kHi there... I just got my very first Spectrum, after search high and low for quiet some time :) But unfortunately, when I plug it in my tv, I don't …
... , I don't get any signal, no image... On one of ... -
+2A - stuck on test signalHi, new member here, hope it's OK to ask for help... I recently rescued my old +2A from my parents' loft. When I tried to test it out, I've found th…
... menu, it shows the test signal (colour bars with "1987" in ... - it seems that the test signal should only appear if the ... only get to the test signal colour bars and beeps.
+2 Grey - low 128k sound volumeI'm trying to revive my old grey +2.... First problem was a faulty RF signal, so I bought a SCART cable from Retro Computer Shack on e-bay (it's the…
... problem was a faulty RF signal, so I bought a SCART ... SCART cable I had "wobbly" interference on the image, I've ... was also a bit of interference on the sound initially, but ... sound in with the RF signal so I don't think ...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…
... 3B.
When i check signal with oscilloscope on X1 or ... the cause of no clock signal?
regards
MaciekZX Spectrum Clock Signal Restorer Circuit[SIZE=5][U][B]ZX Spectrum Clock Signal Restorer Circuit[/B][/U][/SIZE] The circuit below is an experimental circuit. It has only been "tested" using…
... ][U][B]ZX Spectrum Clock Signal Restorer Circuit[/B][/U][/SIZE ...My attempt to restore the CPU clock signalI know Winston has already got this, but I can't see any thread with details about it. Only wanted to share my (still early) results. I'm not taking…
... reshaping the ugly shaped clock signal available from the rear bus ... give me a ininterrupted clock signal, filling the gaps where ... />
From this restored clock signal, it's easier to syntesize ... respect to the clock input signal.
[code]module ...4G interference with FreeviewOur telly picture is really breaking up bad. Has been for about 2 weeks now. Y'know, heavy pixelating, black screen, banding and audio squeaking. …
... this sound like the 4G interference thing? We had leaflets about ...Sound interference and game errorsHi everyone! Here's some "issues" I have spotted. I'm still pretty new to ZX Spectrum computing/gaming...Just so you know. :) I'm using a Commodore…
... but there's very much interference in the sound..
Is ...RGB video issue on +2 and +3. Signal high?I have a couple of +3's and a new +2a that arrived today. When I plugged in the +2a using my RGB lead from Retro Computer Shack I was reminded of a n…
... the ChinnyVision videos dislikes the signal and keeps cutting out (I ...No RF signal from modulatorGot a bit of a strange fault. I've got an Issue 2 spectrum which the TV doesn't lock onto. The TV locks to other Speccy outputs.<div><br></div><div>I…
... ) and I have a decent signal to the modulator (I get ...Interference noise on TV Hi my 48k arrived but after tuning in to an old crt tv all I get is electrical interference noise on the TV . Picture is perfect apart from the so…
... all I get is electrical interference noise on the TV . Picture ...How to amplify the TV out signalI have one of these handy USB sticks where you can input a composite signal, left audio and right audio, but it can also accept UHF/VHF signals (in o…
... you can input a composite signal, left audio and right audio ... ), to boost the UHF/.VHF signal that comes out of the ...Issue with TV signal + Inductor Coil (16K Issue 2 Speccy)Hello guys, I just got a 16K Issue 2 Speccy from eBay. It was sold as not working so I knew there would be some work needed before it's working ag…
... noticed an issue with TV signal which normally was near perfect ... showing the issue with TV signal and another one with the ... possibly be behind the TV signal breakage?
Thanks ... advance.
1) TV Signal - https://youtu.be/pQz6yP0PuIA
Interference when using modern PSUMy 48k revision 3 spectrum with a basic 1 wire composite video mod works perfectly with the original power supply. However When I use a modern regula…
... ) I get a lot of interference on the screen. I've ...Nasty vertical pattern on a 128K Toast Rack via RGBI managed to fix the busted membrane on my [url="https://www.worldofspectrum.org/forums/discussion/55755/got-myself-a-128k-toast-rack-plus-a-simple-a…
... aside from the usual color signal delay, which results in yellow ...
1. Disconnect the BRIGHT signal—no effect (other than the ... of the complete composite video signal—no effect
3. ... problem (even if it’s interference) with these signals, surely it ...
