newbie ? Jamman echo function

["David M. Wilson" <dmwilson@ufl.edu>]

I just got a Jamman and I am having a hard time figuring out the echo
function. I am starting to think that the unit may be bad. Basically, I am
setting the mode to echo and I do get the default delay.  I tap the tempo
and get no echo, but it sounds like it is a punch in loop.  Is there a
special configuration the LEDs have to be in.  The manual indicates
something about a "P" being in the display.
Thanks,
Dave

PS: any other loopers doing hard disk recording and into bands like My
Bloody Valentine, Her Space Holiday, Stereolab, etc...?