HDMI to NTSC converter "NTSJ"?

[Ed in Tx]

Not sure where to put this question. But since it involves my 22 year old Sony KV-27V10 TV I guess this is as good as any.

Need to convert HDMI from a DVR to NTSC video and audio for my old Sony. I bought a device on Amazon that seemed to meet the need, but it doesn't make color the TV will sync to. I saw "NTSJ" whatever that is and thought it was probably a typo., never heard of "NTSJ". The device has several output modes, none of which work for American NTSC. Closest setting makes a picture with out of sync color and b&w bands rolling up the screen.

Anyone here know the meaning of "NTSJ_M/J/Nc" and its variations?