On 30 oct, 18:09, powerampfreak wrote:

So - if it works OK to record SP and play it on the same machine, then
upper cylinder must be good, right?
If a SP recording doesn't play ok on the same machine but on another
machine .. what could then be the problem?
There are the same heads used for both rec and play, right?

If it records and then plays back (SP) well on any machine, same or
different, then the heads are likely OK and there is some other
problem. However, I'm betting that two of the heads are badly clogged
or damaged. Seen this often. Two heads are used for SP rec and PB, and
another two for LP rec and PB, the reason for more heads for each
speed is the difference in microns of the head gap being crucial for
better reproduction at different speeds.

In fast wind, slo-mo etc, the other pair are probably used, which is
why you get more picture.
read up on this he http://www.repairfaq.org/REPAIR/F_vc...ml#VCRFAQB_015

HTH
-B