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old PC with Monocrome Monitor Out.So as discussed in the Carboot sale thread, I have brought and old Apricot Xi. It takes a monochrome monitor via a 9 pin D connector. Now I don't ha…
... to a colour TV via RGB or composite. Is this possible ...
8 ground (signal ground?)
9 video signal
and ...
amplitude of the video signal is fixed at 0.3V ... -
+2B and RGB colors all brightHi, I wonder if this is something others have experienced.. I connect to my LCD monitor using either RGB or composite cable. I was doing some raster…
... my LCD monitor using either RGB or composite cable. I was ... -
RGB on a +2Do you have to actually make the circuit with the diodes and such to make the rgb ouput on the +2 work? [URL="http://mts.speccy.cz/doc/128_rgb.pdf"…
Do you have to actually make the circuit with the diodes and such to make the rgb ouput on the +2 work? [URL="http://mts.speccy.cz/doc/128_rgb.pdf"]http://mts.speccy.cz/doc/128_rgb.pdf[/URL] -
Would this work for Scart blanking in +3?I was looking at RGB to Scart cable solutions over at CPCWiki. Theres [URL="http://www.cpcwiki.eu/index.php/TV_SCART_cable#Alternative_RGB_Wiring"]o…
I was looking at RGB to Scart cable solutions over ... [/URL] that takes the sync signal (pin 4) from Amstrad and ... pin to supply the sync signal one-way and add the ... getting a voltage within the RGB treshold for blanking? -
Getting absolutely no video from a 128+I'm trying to get a friend's toastrack 128 to show video and I'm not having any luck. I'm in the US, so I don't have access to any TVs that can take …
... -capable monitor, and several RGB-capable monitors as well as ... I can tell, the RGB and composite cables are ... tried composite video and RGB on all of these, ... on one of the RGB monitors I would see a ... audio mix from the composite signal with no change.
... -
128K Toastrack colour smearHi guys! I got this 128K toastrack and connected it to my TV composite video input extracting the video signal directly from PIN 1 out of the rear R…
... video signal directly from PIN 1 out of the rear RGB connector ... -
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 ... -
Building a PlusD - problemsI'm building a PlusD for myself, but I'm having difficulty getting the ROM to page in properly. At this moment the ZX Spectrum boots, but is VERY slo…
... can see the /CSROM signal is continuously switching.
I'm ... -
ZX81 back porch fix using LM1881Hello! Has anyone here did the back porch fix for ZX81 using LM1881? I did it this weekend and instead of clear black on white i got black on dark g…
... [/IMG]
The signal is very noisy. I tried ... original PS and with a switching PS. I also added a ... 100mv/div. So, the whole signal is 200mv p-to-p ... -
Switching 48/128 modes within a BASIC programI'm not sure what use this would be; ie. being able to switch between 48k and 128k modes and back again from within a continuously running BASIC prog…
... quite right yet ...
Switching back again would currently only ... -
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 ... -
Need repair advice - noviceHello, does anyone know where I can get a professional to rejuvenate my 128 heatsink model? I know nothing of electronics and can't solder for toffee…
... (connected via the RGB to SCART cable)
- RGB output shows a ... first hour of use. Switching off RGB on my switchbox gives me ... -
WIP: ULAPlus hardware implementationThis aims to be an "almost" plug-in replacement for the Sinclair ULA chip fitted in Spectrum 16K/48K/Plus machines. It comes in a form of a small PC…
... encode the RGB output into a CVBS/S-video signal.
RGB (technically it's 9-bit ... RGB, converted to analog by three ... AD724 is included). Of course, RGB are also available as 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…
... it with a S-video signal instead of a Composite. I ... have not yet found an RGB to VGA adapter that is ... -
+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.
RGB CablesI have a Zx Spectrum +3 with RGB/SCART Cable. It doesn't work with a modern LG LED TV because, I guess, the scart is composite only (the image is bla…
... a Zx Spectrum +3 with RGB/SCART Cable. It doesn't ... on the TV with my RGB cable connected to a SCART ...QL composite question...Hello guys, I have two QLs, both in excellent condition with new membranes, capacitors, all plastic caps for the slots etc... Although I've made th…
... /> Although I've made the RGB cable and I get excellent ... no sound in the RF signal.
Just to have composite ... machine (i only made one RGB cable that I plan on ... RGB socket but i would like to have a good composite signal ...9V switching cheap chinese suppliesI used some 9V supplies from China (eBay) to get some ZX Spectrums working. One of the solutions I used these small 1.5A switching supplies for, was…
... used these small 1.5A switching supplies for, was to fill ...Spectrum +3 to Joytech PS2 8" LcdHi, I?m making some cables so I can connect my old computers to a Joytech PS2 8" Lcd. Starting with my Spectrum +3 I made a RGB and a composite cab…
... +3 I made a RGB and a composite cables. ... from the +3 through RGB and composite in the LCD ... Rgb).
I connected a Spectrum 48K by composite signal ... a malfunction +2 by Rgb made the garbage lines too ... different between the 48k video signal and the +2 and ...Adapt Electronics RGB Module[URL="http://www.worldofspectrum.org/infoseek.cgi?regexp=^Spectrum+RGB+Output+Module$&pub=^Adapt+Electronics$&loadpics=3"]The ZX Computing 2.84 magaz…
... .org/infoseek.cgi?regexp=^Spectrum+RGB+Output+Module$&pub=^Adapt ...maximum addressable RAM for a Z80 using bank switching?What is the maximum addressable RAM for a Z80 using bank switching? The Enterprise64 home computer could address up to 4MB, is this the limit for a …
... for a Z80 using bank switching?
The Enterprise64 home ... Z80?
A bank switching scheme allows the memory to ...+2b RGB to CompositeHello , My samsung LCD TV duznt seem to like my +2b RGB scart lead , I get a picture but theres lots of snow in front of it , My spectrum+ 48k with t…
... seem to like my +2b RGB scart lead , I get a ...SPECTRA - RGB SCART Interface for 48K SpectrumSince the launch of the SPECTRA interface back in June 2012, some discussion of it has appeared in the forums in the past (mainly [URL="http://www.wo…
... function being to provide a RGB connection to the SCART socket ...Spectrum +2(grey) rf problem not tuning inHi lads, first of all a quick intro. Im a speccy enthusiast in Ireland, had my first speccy when i was seven in 1987(grey +2). Eventually it got repl…
... lock on to a clear signal. My theory is that the ... unit isnt emitting a strong signal? Has anyone had this problem ... a backup, i ordered an rgb scart lead for it. I ... the rgb output so that it ll give a strong enough signal ...Microdrive Serial ProtocolGentlemen, I've been dreaming for a long time to develop a Microdrive emulator, where an SD card loaded with .MDR cartridge images can be accessed t…
... on the edge of the signal and a given time from ... to be studied even before switching the Spectrum on.
Anyone using an RGB SCART cable with a +2A/+3 and LCD TV?In [URL="http://www.worldofspectrum.org/forums/showthread.php?t=44697"]a recent thread[/URL], I mused: [quote]Can +2As be composite modded? If so, I…
... know that the +2A's RGB output can take a SCART ... +2A or +3 using an RGB SCART cable and an LCD ... , I'll take a punt. RGB will of course look a ...128K Toastrack RGB SCART Picture QualityHi, I wonder if anyone with experience of using an RGB->SCART cable with an 128K Spectrum (Toastrack) can give some first-hand advice? I've composit…
... with experience of using an RGB->SCART cable with an ... 'm toying with getting an RGB->SCART cable from eBay ...One more grey +2 with video problemsI guess I need your help again to hopefully be able to do some proper troubleshooting myself one day. Here I have a grey +2, which could be a bottom…
... signal at all. Neither on the TV out, nor on the RGB ... (known good PSU, RGB-to-SCART cable and ...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
Maciek
