The JVC HR-A34U only has an RF (antenna) input. You would need a converter for composite video, S-Video or component video to RF. I don't recall seeing a component video to RF converter. Amazon has several composite video to RF options. One is https://www.amazon.com/RCA-Compact-RF-Modulator-CRF907A/dp/B0014KKV7W . For this, you connect the Yellow (video), Red (audio) and White (audio) RCA outputs on the cable box to the converter. Then connect the RF cable between the converter and the VCR.
I hope this helps.
Cindy Wells (These modulators were very common back when VCRs and video game systems first came out. Most TVs only had the RF inputs at the time and the video signals from the new devices had composite video only.)
Answers & Comments
The JVC HR-A34U only has an RF (antenna) input. You would need a converter for composite video, S-Video or component video to RF. I don't recall seeing a component video to RF converter. Amazon has several composite video to RF options. One is https://www.amazon.com/RCA-Compact-RF-Modulator-CRF907A/dp/B0014KKV7W . For this, you connect the Yellow (video), Red (audio) and White (audio) RCA outputs on the cable box to the converter. Then connect the RF cable between the converter and the VCR.
I hope this helps.
Cindy Wells
(These modulators were very common back when VCRs and video game systems first came out. Most TVs only had the RF inputs at the time and the video signals from the new devices had composite video only.)