Please assist with lack of color on scree. Only black and white.

[jn8306]

Hi all. I lost my color screen since pulling my PC out of storage and cannot find a viable explanation. My old monitor went bad and I had to get a red-yellow-white to HDMI converter which I believe should have worked. I checked here and online but cannot seem to find my individual issue. If someone has seen this lack of color issue please send me a link to it. I have read that U6 could be the culprit but my MB does not seem to have one, or at least not where they say it should be. I have everything working in the PC except this issue. I would appreciate any assistance.

 

[austfox]

It might be that you are only seeing the luminance signal from your Commodore. What model do you have, and what brand and model number was your old monitor?

 

[vwestlife]

Note that the colors used by the RCA plugs are ambiguous:

Original Commodore RCA plug colors:
Yellow = Luma
Red = Chroma
White = Mono audio

Modern RCA plug colors:
Yellow = Composite video
Red = Right channel audio
White = Left channel audio

So if you have a Commodore luma/chroma monitor cable and want to use it with an HDMI converter or a TV that has a composite video input, you'll only get black & white video because you're only connecting the luma. You need to get a monitor cable specifically designed to output composite video.