No volume on lower chanels Video O.K. upper chanels volum and video O.K.

Where do you lose audio? Channel 13 and down?

Are you on cable TV? Call your cable supplier - could be a problem with their network.

There is no soud on chanels 2,3 4,or 21. If I go through my dvd and put my T.V. on chanel 3 the sound is fine.

Strange, have to think.
Is this through a cable box?

No, it is a direct cable connection to the back of the VCR. The rest of the t>v.s in the house work fine.

Some older VCRs could lose sound if the channel was not fine tuned.
Try unplugging VCR, TV, for about 10 seconds and repower.