SCART and Scorpio — ZXNet «hardware.zx»

From Alexandr Sinyakov To All 12 December 2005

Hello, Jukov Juk> Did pin 20 supply a Video or Sync signal? Video (b/w signal with sync mix). I didn't use Sync there at all.

From Alexandr Sinyakov To All 12 December 2005

Hello, Jukov Juk> Shit doesn't work. The image has become black and white, everything is spoiled by periodic Juk> screen flash. Maybe you have a different model? I have Scorpion Turbo+ I have the same one (green board). I could have mixed it up - try +5V on leg 16 SCART. These 5V should block the reception of the signal from the 20th leg and force work TV on R, G, B signals. PS: Oh, I dug up the SCART on which I did this - on the 8th leg, it seems Video (?) on the 16th +5V (I can’t say for sure, I haven’t had a scorpion using SCART with TV for a long time communicated). Nothing suits the 20th leg at all.

From Konstantin Zhukov To All 12 December 2005

Hello, SAM style SAM> Video (b/w signal with sync mix). I didn’t use Sync there at all. Shit doesn't work. The image has become black and white, everything is spoiled by the periodic flash screen. Maybe you have a different model? I have Scorpion Turbo+

From Konstantin Zhukov To All 12 December 2005

Hello, SAM style SAM> I have the same one (green board). I could have mixed it up - try +5V at 16 SAM> SCART leg. These 5V should block signal reception from the 20th leg and SAM> make TV work on R, G, B signals. SAM> SAM> PS: Oh, I dug up the SCART on which I did this - on 8 SAM> leg like Video (?) on the 16th +5V (I can’t say for sure, I’ve had scorpio for a long time SAM> did not communicate with TV via SCART). Nothing suits the 20th leg at all. According to those documentation 16pin is a switch between RGB (1-3V) and Video(0-0.4V). Pin 20 is a video input, and pin 8 is a mode switch Video(12V) and TV(0V).

From Dobrynin Sergey To All 16 December 2005

Hello, SAM style SAM> Video (b/w signal with sync mix). I didn’t use Sync there at all. SAM> worked fine (only it was bright) Don’t you think that your brightness signals are added twice, first in spec, and then RGB is added to the TV. I received an ATM from Roman, connected it via SCART, very beautiful picture it works! On the 20th leg I gave it the synchro mixture. I don't have control signals I applied it to SCART and just switched TV/AV on the TV.

From Grand To All 16 December 2005

Hello, Jukov Juk> ... I tried replacing the SYNC signal generation and sampling circuit Juk> KP11 to the KAY-1024 variant (Nemo convinced that his computer was easily connected Juk> by SCART). What kind of scheme is this? Is it possible to attach it?

From Andrey Vorontsov To All 16 December 2005

Hello, do_se 2Jukov: Samsung is very critical of clock timings. I was with connecting the first Leningrad, and for a very long time. Got it, no problem, no no shaking. So if the synchro formation scheme in the computer is oblique (which exists almost everywhere) or somewhere in the m/s there is a glitch in the timing or interference in food - poor image guaranteed

From Grand To All 17 December 2005

Hello, Jukov SAM> worked fine (only it was bright) do_> don’t you think that your brightness signals are added twice? do_> first in the spec, and then also in the RGB TV. Some Scorpios have an overestimated brightness signal level. The reason could be this. rw6> Samsung is very critical of clock timings. In the East they never understood SCARTs. :v2_smile: 2Jukov: I would like to know the full name of this TV. For the future, so to speak... rw6> So if the circuit... fails due to timing or power supply interference - rw6> bad image provided It follows from this that you need to check the stability of the power supply, compare to the oscilloscope the “Master” and Scorpio signals, and also try to connect Scorpio to another TV via SCART. Much will happen after this clear.

From Konstantin Zhukov To All 17 December 2005

Hello Grand Gra> I would like to know the full name of this TV. For the future, yes Gra> say... Samsung CS25M6 (29M6). View the signals on an oscilloscope, the signals would be very good I wonder if I had one.

From Grand To All 20 December 2005

Hello, Jukov Juk> View signals on an oscilloscope signals would be very interesting if Juk> I wish I had it. It's sad. Then all that remains is to connect Scorpio to another TV (preferably European brand).

From goodboy To All 26 August 2006

Hello Grand familiar situation, connected scorp to samsung: r, g, b, sync and +5 on 16, in video mode - there is nothing, although the Amiga connects normally, but on Sony everything works.

From Grand To All 31 August 2006

Hello, The Exploited Does anyone know exactly how to fix all these troubles?

From Chunin Roman To All 31 August 2006

Hello, The Exploited The> Scorpio seems to have a very short CC impulse Yes, this can be fixed by cutting off H4 from the CC generation circuit and soldering there H5... After this, Scorpio works great with the PAL encoder :).

From goodboy To All 2 September 2006

Hello, CHRV CHR> Yes, this is fixed by cutting off H4 from the CC generation circuit and CHR> by soldering H5 there... thanks for the advice, it helped: v2_clap2: