Noise bars playing VHS-C tapes with adapter on VCR (audio ok)

[fpneves]

Hi there,

I'm playing VHS-C tapes with a JVC adapter C-P6U in two VCRs:
JVC HR-S5800E (SVHS VCR)
LG RC68223 (VHS VCR)

So far I haven't had any issues but last weekend, when i play any VHS-C tape on JVC VCR i get noise bars and the audio is ok.
I play the same VHS-C tapes on LG VCR without issues, so i presume the adapter is ok.
Regular VHS tapes are playing well in both VCRs, so i presume the video heads in JVC VCR are ok.

What could be happening ?
I already play around wih manual tracking in JVC VCR without success.
Unfortunately, I have some SVHS-C tapes that I can only play on JVC VCR.

Please help.

Thanks

[timtape]

Can you upload to the forum some video or still examples? Does the problem VHS-C come up as SP or LP on the VCR's front panel display? LP recordings use different heads to SP and tape-to -head alignment is more critical than on SP recordings. So if there is an alignment problem it's more likely to be on LP recordings.

[themaster1]

bad alignment of the tape during recording (maybe a shock moved (unscrewed) one of the two guides (P2/P3) hence this result now. If manual tracking don't solve it the only other option is messing with the 2 guides (advanced users only)