Re: Commodore to S-Video or HDMI video?

From: Anders Carlsson <anders.carlsson_at_sfks.se>
Date: Thu, 19 Jul 2018 10:41:38 +0200
Message-ID: <868ab112-3c7c-abc0-62a3-f086aad740ee@sfks.se>
Terry Raymond wrote:

> Yes mine is NTSC
> I wasn't saying the picture was out of place, just not displaying 
> anything on a modern flat screen NTSC TV using the monitor connection 
> (on the Vic) which is the Din connector!
> I assume the proper video converter would fix this.
> The last message mentioned the converters.
> There is a place in the USA in Florida that has a converter, I need to 
> see if it's still available and I will post that info here for others.

Ok, trying to sort out your issues and whether a composite/S-Video to 
HDMI converter would make any difference:

Commodore 1084
VIC-20 displays correctly with BASIC and cartridges (composite video, I 
presume)
C64 displays correctly with BASIC and cartridges (composite or S-video, 
not entirely obvious)

Flat screen LCD TV
VIC-20 does not display at all neither with BASIC (*) nor cartridges
C64 still displays correctly with BASIC and cartridges

(*) Previously you wrote "Using a VIC-20 was fine" which lead me to the 
conclusion there was a difference between BASIC and using cartridges, 
but in your latest post you state neither works.

Is that the same cable on both? While the C64 kinda-sorta has S-video 
out of the box on nearly all machines except the very first ones, it 
also can output the same type of composite video the VIC-20 natively 
does. (And yes, you can make internal modifications to the VIC to get 
S-video too, but that likely is not the case here).

Would the video on the C64 have a more steady frame rate which helps the 
LCD TV to sync? I think the signal strength should be the same on both, 
about 0.7 Vpp IIRC.

Are those the only two displays you have access to, no additional modern 
TVs?

Perhaps a converter to HDMI would make a difference, if it is more 
forgiving on input signals.

Good luck!

Anders Carlsson
Received on 2018-07-19 11:00:04

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