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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…
... and frequently getting out of sync.
With decoupling capacitor, the ... displays frequently get out of sync.
With single transistor, the ... displays frequently get out of sync and there are color aberations ... -
Spectrum 128 toastrack imageHi, I have two spectrum 128k toastrack with problems on composite TV out. I have composite mod for both of them, but the image is really bad on bot…
... connected all necessary signals (RGB + SYNC) to a GBS8220 board that ... present but little problem with SYNC. Might be because of the ... -
S-video to RGB conversion?Are there any good converters (not too expensive) that could do the job satisfactory? I understand there's this one: http://www.ambery.com/cost…
... /> But it outputs RGB with sync on Green, and not RGB ... +Comp.sync which is what most CRT ... -
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…
... )
2. Used the composite sync for, well, syncing, instead of ... -
Restoring AY registersAfter doing (not still finished) the sna to tap converter, I'm going to try to do the same for 128k snapshots. I've got threee ideas about what to do…
... registers would be "out of sync" in procedures 2 and 3 ... 3 is less "out of sync", but produces more garbage in ... -
Spectrum 48K / composite mod / LCD TV: voltages out of the ULAHello Spectrum World I have juste bought again my first computer on ebay... a Speccy 48k issue 2 with a 5C112E-2 ULA. Just had to replace TR4 and …
... because:
a) the vertical sync is much shorter than it ... not correct (the voltage between sync and black is bigger than ... :
- Y (inverted) has sync at 3.3V, black at ... bursts even during vertical sync (the 250us long sync pulse between two ... -
How do emulators make code appears as running at 3.5Mhz?Decent Z80 emulators on github return t-states after executing an instruction, giving you the ability to emulate Speccy relatively well. But there ar…
... change is not 100% in sync with the screen. So how ... -
ZX ULAX emulatorYet another "enhanced" Spectrum emulator for those interested. Some of you might have seen the videos on this channel: https://www.youtube.com/…
... only, no MEMPTR, no AY sync to Z80). It was made ... -
Fixing a ZX Clone from .ru - 27 years late.Hi there, I've currently assembled another russian clone a "Compact 256 Turbo" from a PCB I bought. The machine appears to be fully functional and o…
... Signals SS (related to Composite Sync I think), !KS, !BS, BK ... -
Dr. Jim's personal Sinclair showcaseThere were some Spectrum-related webpages that I hosted some of my own stuff on, and it's about time it had an extensive rehash. So, over the last we…
... Fantastic, and the archives for Sync have [i]loads[/i] of ... -
Microdrive logic flow.Hi all, I've finally gotten my hands on an Interface 1 and Microdrive to continue my project, and have been analyzing the Microdrive with a logic …
... following;
1) A sync bit seems to come through ... showing data. Is this a sync bit, or is it the ... -
Spectrum +2 grey to VGA and GBS-8200Hi friends, need your help with a cable i am trying to make it work, using this link https://cygnus.speccy.cz/popis_propojeni_zxs128kplus2_a_g…
... on the cable (RGB,comp. sync,ground=5 total,2,4 ... -
Spectrum +2 grey to VGA and GBS-8200Hi friends, need your help with a cable i am trying to make it work, using this link https://cygnus.speccy.cz/popis_propojeni_zxs128kplus2_a_g…
... on the cable (RGB,comp. sync,ground=5 total,2,4 ... -
Sleep aids?For years I have had problems sleeping, mostly getting to sleep (it can take me half a night sometimes) and staying asleep or getting into deep sleep…
... that ones brain-waves can sync with and lead one into ... -
Two new spectrums arrived. One no video.Got a +2 and a Toastrack arrived today. Toastrack was actually in good condition, little wear, though a little dirty. Worked well on first power up, …
... can't even get video sync, and the video modulator is ... -
5C Horizontal timing vs 6C horizontal timing.Hi all, Just considering the timing difference in the video signal between the 5C and the 6C where the 6C ULA seems to have 50% longer horizontal …
... 50% longer horizontal blanking ( H-Sync ). Does anyone know the reason ... -
What is VSYNC-based sound on ZX80/81?An Z81 emulator demo with quite impressive sound has this explanation -- "manipulating the vertical sync to create sound with the TV buzz". This is …
An Z81 emulator demo with quite impressive sound has this explanation -- "manipulating the vertical sync to create sound with the TV buzz". This is new to me. What does it mean and can it be done on Spectrum too? -
+3 RGB OutI've jus get an +3 that works fine, but i would like to use my CPC RGB monitor with it. Does anybody know something about if it's possible or not?. I…
I made a scart cable easily enough. Connect +12V to fast RGB blanking. I changed the 470ohm resistor on the composite sync line to 330 to make a certain tv work all the time. I've just completed a stereo modification on the secaria site. -
+3 RGB OutI've jus get an +3 that works fine, but i would like to use my CPC RGB monitor with it. Does anybody know something about if it's possible or not?. I…
... doing the sound wire. Connect sync to 20. Connect red to ... -
ZX48 to EGAHi ! I have ZX48 Russion version "Master" and old EGA monitor. Is it possible to connect the monitor to Speccy ? I suppose, the RGBS TV output is not…
... adjusting the V and H sync otherwise you're going to ... -
ZX48 to EGAHi ! I have ZX48 Russion version "Master" and old EGA monitor. Is it possible to connect the monitor to Speccy ? I suppose, the RGBS TV output is not…
One of the EGA pins should be the vertical retrace sync pin - that'll need to have the correct Otherwise there should be an adjustment screw - although that may not have a sufficient range for synchronasation. -
speccy+2 to HERCULESIn a few years ago I saw a Speccy connected to HERCULES monitor. Now I have one and I want to connect my speccy to it. If anyone knows how I can do a…
... Blue and the PAL compsite sync, and then a connection from ... -
speccy+2 to HERCULESIn a few years ago I saw a Speccy connected to HERCULES monitor. Now I have one and I want to connect my speccy to it. If anyone knows how I can do a…
... standart needs these signals: horizontal sync, vertical sync, intensity, video. Signals must ... .
Speccy has only vertical sync and intensity (TTL) of needed ... convertor from composite sync to horizontal and vertical sync and convertor from ... -
RGB Cable for Spectrum 128K +2Anyone have one for sale? Or know where I could get one - tried the highstreet stores but no joy :?( Is it a special Sinclair version or can I use …
... />
I changed resistor R34 (sync line) on the computer to ... doing the sound wire. Connect sync to 20. Connect red to ... -
ANN: Spectaculator 2.5 available for downloadHi. I've just released a new version of Spectaculator, available from [url="http://www.spectaculator.com/"]http://www.spectaculator.com/[/url]. Hopef…
... second in the rankings. (Sound-sync problems with ZX32 have caused ... -
Speccy +2 RGB to S-video?Okay, so I emigrated from dear old Blighty to a land rather less Speccy-friendly, the USA. I've finally managed to get a couple of Speccies over here…
... the Speccy's RGB & sync output signal. The TV must ...
