Re: vic-ii pal colors

From: Gerrit Heitsch <*gerrit_at_laosinh.s.bawue.de*> Date: Mon, 8 Jun 2020 19:33:34 +0200 Message-ID: <7db5ea45-1652-f05a-2bf4-6e427a21dc24_at_laosinh.s.bawue.de> · gerrit_at_laosinh.s.bawue.de

On 6/8/20 7:03 PM, Istvan Hegedus wrote:
> Thank you Levente for the information!
> 
> I have already noticed in plus4emu source code that the NTSC color 
> phases are different while the standard says the color phases are 
> rotated with 33 degree which is the case in the documentation (just the 
> wrong direction). I will check YAPE too and use color angles from the 
> emulators.
> I am investigating the color and luma signals via oscilloscope directly 
> on the TED pins and sometimes on the composite output after the RF 
> modulator. The luminance levels are also strange and not the same as in 
> the documentation...

What kind of TED are you checking? A 7360 or a 8360? If the 
documentation was written for the 7360 and you are looking at the output 
of a 8360 that might be the explanation.

When switching from HMOS-I to HMOS-II (8360) MOS might not have bothered 
to fine tune the analog parts if the output looked OK.

  Gerrit