On Tue, 20 Sep 2005 06:14:18 -0400, "nolsar"
wrote:

Try adjusting the tape guide posts, white plastic cylinders on chrome posts,
up or down may need tightening with small flat screwdriver or hex tool,
sometimes they become loose and the picture will be half missing.

Don't fiddle with those unless you know exactly what you're doing and
have the necessary equipment. You'll only make things a lot worse.

Are you sure you're actually cleaning the heads, not just polishing
the drum? Again, if you don't know what you're doing, don't do
anything. A professional clean is cheaper than new heads.