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Composite mod vs interfaceHey all, I was looking at the pinout for the edge connector of the zx and noticed that there are composite and component video signals available thro…
... there are composite and component video signals available through it. So ... one choose to mod the computer for composite video instead of just ... an advantage to doing the mod over using an interface? -
I recapped my 128K toastrack, installed stereo kit and detached audio from video, but...Hello fellow forumers! I'm seeking for help: I've finally decided to change all electrolytic capacitors of my 6U (with all Panasonics 105oC)... Af…
... . Then I detached audio from video signal by lifting the right ... know if the detaching audio mod is compatible with the stereo ... snow). This means that every video output is affected! Spectrum was ... -
Best composite mod informationJust got my 16K (Issue 3) working. I'm in NTSC land so I need to run a composite signal through my PAL<->NTSC converter. I know there are a ton o…
... there telling you how to mod the video, but I want to ... -
128 +2 grey, no video but still beepsGot a grey 128 from ebay, im using a 48k spectrum powers supply, all voltages seem ok. I cant get compostie video using the normal mod or from the 8…
... cant get compostie video using the normal mod or from the 8 ... i correct in thinking rgb video will still work as it ... -
Lambda 8300 Color module (ZX81)I was gifted such a device yesterday and have a few questions ... First of all it appears the interface does work in general when used with a 16K …
... ZX81 (Rev. 3, simple transistor based composite mod [not the 'complex' 555 ... a 2C210E ULA, no inverse video - quality on my Sony PVM ... (while improving the general ZX81 video when connected directly to a ... -
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…
... .
I modified the video output to get rid of ... decoupling capacitor and the single transistor mod.
All 3 work ... of sync.
With single transistor, the displays frequently get out ... is going on with that video output! -
Save video directly from ZX 48K hardwareWhat is the best "proven" way (bets quality) to acquire video from a Speccy 48K ? I have converted the the TV out into AV,,with the usual mod (wit…
... mod (with and without capacitor). so I can connect some video ... (USB dongle) to save video directly from it, without the ... I'm using the following video capture/grabber dongle:
https ... /> Does this happen to other video capture boards ?
... -
Learning about MOD's and TrackersThanks to Messrs. Clowder, Colonel, Bedazzle and Prophet for bringing me into the 21st century on the previous thread about 'Awesome/Cool/Beautiful *…
... thread about 'Awesome/Cool/Beautiful *.MOD *.xm, etc muzak requested'
video tutorials. I had them all ... -
ZX81 composite modHi guys. I have picked up a ZX81 untested for a few quids. I do have a problem tuning it correctly on a Crt TV. I cannot get better than a wavy black…
... would like to mod the machine to composite video output as this ... -
48k issue 4B display problem etchi,, i have a zx spectrum 48k issue 4B with a display issue it has wavy lines in both the border and paper,some colours seem worse than others ie red…
... linked. it has a transistor composite mod or thought previously had a ... capacitor composite mod with the same issue.. i ... of changing CPU ,, ie replaced video encoder,new lower ram module ... -
[VIDEO] Jet Pac AdvancedJet Pac is a wonderful game, but does adding a mod really make it better? Check out my new video. https://youtu.be/HsEMbHn6Hdw
Jet Pac is a wonderful game, but does adding a mod really make it better?
Check out my new video.
https://youtu.be/HsEMbHn6Hdw -
Composite video mod on a 16K issue 2, not workingI carried out the composite video mod detailed here: [url]http://user.tninet.se/~vjz762w/fixuspec.html[/url] I chose the one that requires the trans…
... " suffix just denotes that the transistor belongs to a higher gain ... problem isn't with the transistor being a "C" gain group ... that the output here is VIDEO@75R rather than RF, yes ... ol channel 36 with this mod. -
I'll show you yours if you show me mine!!??!?? or is it the other way round :confused: Ho hum. [SIZE="4"][b]Anyways, let's see your Spectrum rigs (setups).[/b][/size] Here's mine. I've ju…
... QUOTE]
VGA = Video Graphics Array ( a computers' graphics ...
TFT = Thin Film [edit]Transistor[/edit] (The technology behind flat ... Green Blue. RGB the video signal is split between three ... /18K Spectrum via a simple mod.
128K +, 128 ... -
The vduHi. I recently wrote off my trusty green screen vdu monitor. Using the speccy on the tv just isn't the same. Is there any way to connect the speccy t…
... modulation of the internal composite video signal, without the impedance ... famous "Composite Mod" that usually consists of a transistor/resistor arrangement ... that claims to view video from SCART can be ... The bad news is, composite video cannot drive a modern VGA ... -
PAL-I to PAL-B on a grey +2Hello. A friend brought over a grey +2 from the UK. The tv sets over here are PAL B/G and i can't tune the sound because of the frequency of the sou…
... the emitter of the last transistor of the modulator. The sound ... picture is much better. This Mod is also very usefull if ... of the +2 from its video plug.
Ingo ... -
I bought my first ZX Spectrum 48k, now what ?Hi guys ! I recently go to Brussel in Belgium and found a ZX Spectrum at a "flea market" (sorry, I don't the correct word for that, let's call it a …
... also include a simple one-transistor amplifier. I've never ... /> The composite video signal already goes through a transistor buffer in the ... add another transistor amplifier stage. I've always done this mod the ... PCB some kind of memory mod. Perhaps it was a 16K ... -
I bought my first ZX Spectrum 48k, now what ?Hi guys ! I recently go to Brussel in Belgium and found a ZX Spectrum at a "flea market" (sorry, I don't the correct word for that, let's call it a …
... composite video signal already goes through a transistor buffer ... feels pointless to add another transistor amplifier stage...[/QUOTE]
transistor is required, see my ... regular Issue 2 with transistor mod. This appears to support ... -
I bought my first ZX Spectrum 48k, now what ?Hi guys ! I recently go to Brussel in Belgium and found a ZX Spectrum at a "flea market" (sorry, I don't the correct word for that, let's call it a …
... 75 Ohm 'value' at the video input of the TV is ... ![/QUOTE]
The 75 Ohm video impedance inside the TV is ... video input, and so you don't have to do the transistor ... composite mod -
+3 sound cureHi all, As most of us know the Spectrum+3A has this sound problem, distortion. The +3B had this problem fixed. I done some looking at the circuitry l…
... of TR3 (the last transistor before the modulator).The reason ... is interferrence between audio and video signal inside the TEA2000. ... adding noise to the video signal if this mod is done.
video signal. High frequencies in ... -
Crappy video in +2B/+3Maybe it's not a failure in my ZX Spectrum, but I need some advice... I've got some spectrums (a ZX Spectrum +, two spanish ZX Spectrum +2B and a mo…
... modificaciones sobre el circuito del transistor:
- El colector, a ... /> Try these modifications to your transistor mod:
- Pull the colector ... 10V. TEA2114 in the other mod is connected to +12v. Would ... y la salida de video est? bien referenciada)? -
Issue 3B only sees 16k (and RAMTOP NO GOOD on loading)A ZX+ with issue 3B board that i got recently, does not see anything more than 32768 (sometimes 37267..) on "PRINT PEEK 23732 + PEEK 23733 * 256 (Ent…
... , i did the composite mod on this spectrum, and ... In which I use a transistor that normally carries a ... a colour signal. That transistor does give me the ... to get a more suitable video signal.
... s possible to have composite video (colour) and sound ... -
+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…
... pretty good Composite/S-video to VGA adapter that ... I know you can mod the 48k machines to ... . The standard 128 composite video buffer, i.e. three ... 2K resistor, an npn transistor and a 75 ohm resistor ... pin 6 (the normal composite video output).
... -
+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…
... the actual details of the mod, the feeling being that if ... be fed to transistor buffers and used as s-video. I added ... (for displays with no s-video input).
Obviously C24 ... just as with a composite mod. -
PLEASE HELP!! DEAD SPECTRUM!!Sad News!!! I have a spectrum issue 5 board and I'd done the general composite mod which was great and it worked with a divIDE plus (RWAP) and esxDO…
... my Spectrum and fix the video at the same time :)
Has anyone done the mod with the transistor, cap and resistor?
mod?
Thanks
PLEASE HELP!! DEAD SPECTRUM!!Sad News!!! I have a spectrum issue 5 board and I'd done the general composite mod which was great and it worked with a divIDE plus (RWAP) and esxDO…
If I put a cap inbetween the video out and my tv or composite to vga converter, I get a very dark screen.
Haven't tried the transistor mod though.PLEASE HELP!! DEAD SPECTRUM!!Sad News!!! I have a spectrum issue 5 board and I'd done the general composite mod which was great and it worked with a divIDE plus (RWAP) and esxDO…
The transistor mod shouldn't actually be necessary - ... isn't important - and that transistor mod doesn't actually give a ... . At the frequency that composite video runs at, a cable doesn ...Composite video for 48k Capacitor orientationHello, My multisystem TV is acting up and I'm unable to navigate the menu to tune in the RF signal for my speccys. However the A/V input still works.…
... just improved the composite output mod. I put a 1.5K ... the collector of a BC547 transistor. Then the emitter to the ... to the base of the transistor. This way you have a ... transistor with a 75 ohm resistor and 100uf capacitor going to video ...+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…
... the video out mod on my +2A too, the mod with 1 transistor, 3 ... I separated the sound and video by removing the capacitor C24 ... could also try the other mod just for the sake of ...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…
... reduce sound interference on the video picture...
... (MC1376) to the transistor output stage of the ... t see how this mod would affect the composite ...
Does the composite video output on pin 1 (and ... pin 2) on the RGB/Video DIN socket work?
...
