C64 Component Video Mod: Artifacts in the first minutes after power on

[tom64]

I’ve installed the DIY Kit in a C64 with Board 250407. The voltage select jumper is set to 12V (closed). The board ist connected via component output to a Panasonic LCD-TV.

Problem: For the first 2-3 minutes after switching on the C64 there are horizontal artifacts in the picture. After that time the picture is stable. Same in 576i and 576p mode. This happens only if the system ist cold. S-Video output is everytime ok.

Do you have an idea to fix the problem? I‘ve made short video, but I don‘t know how to upload it here.

[BuckoA51]

Please can you try re-seating the VIC to and VIC2 adapter and give it a good, firm push?

[tom64]

Many thanks for your response.

Result: In the first few seconds, the image is free of artifacts. After that, the artifacts appear permanently.

[Author]

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