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 Post subject: Question regarding BVM20F1E and Y/C + terminators?
PostPosted: Thu Nov 08, 2018 7:51 am 



Joined: 04 Nov 2013
Posts: 22
Running a recapped "low-miler" BVM20F1E with BKM-25P (composite/YC etc with pal). I have succesfully connected e.g. C64 (Y/C) to the monitor *without* any terminators in the corresponding loop throughs. I recently checked the manual of the BKM-25P again and it stated that if I'm not using the loopthrougs I should use terminators in them. So, I then put terminators (75Ohm) in both Y and C loopthroughs and I only got luma working (black and white image). Image is fine without the terminators.

So, why is this happening, if the official manual tells to use termination? Just curious.


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 Post subject: Re: Question regarding BVM20F1E and Y/C + terminators?
PostPosted: Thu Nov 08, 2018 11:51 am 


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Joined: 06 Mar 2006
Posts: 11369
Location: Germany
possibly the C64's output signal isn't 100% to spec when it comes to signal termination. Worst thing to happen, if you're running your monitor without output termination, is that you might experience ghosting with VERY LONG cables runs and brightness might be slightly off - - - in other words: don't worry about it.


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 Post subject: Re: Question regarding BVM20F1E and Y/C + terminators?
PostPosted: Fri Nov 09, 2018 6:36 am 



Joined: 04 Nov 2013
Posts: 22
Fudoh wrote:
possibly the C64's output signal isn't 100% to spec when it comes to signal termination. Worst thing to happen, if you're running your monitor without output termination, is that you might experience ghosting with VERY LONG cables runs and brightness might be slightly off - - - in other words: don't worry about it.


Thanks Fudof :) Now I can relax :)


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