Posted By
MIK
on 2018-10-06
05:18:48
 |  Re: Plus4 another black screen but not always
Hard to pin point what the issue might be, however the first thing that comes to mind is your TV and the fact your using RF. In the UK a TV channel known as Channel 5 stared to transmit on the same frequency as old computers and game consoles that used RF. Some of the later TV's refuse to show anything other than the TV channel via RF so what a lot of people do these days is opt for an AV / Composite Video lead as an alternative.
Here is an example: https://www.ebay.co.uk/itm/Commodore-C64-C128-VIC-20-Video-Lead-TV-RCA-A-V-Cable-High-Quality-OFC-Cable/250811214485?
The C64, C128, Vic20, C16 & Plus/4 all use the same Composite lead, they are all wired the same way inside the machines. I would try an AV lead first just in case it's your TV, or try a different screen.
S-Video will give you the best picture for C16/Plus4 but you really need and old school CRT and one that supports S-video, (many don't even though they have the socket) to see it properly! Modern screens are not very good at showing such low resolutions in the way they should be seen, why an old TV is recommended.
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