[Boatanchors] looking for manual: protek p-2540

[corner five]

I know this is a long shot, but I'm not finding the manual on this one.
.
I came across an old and certainly not top end oscilloscope.  It is a 
protek p-2540.  Dual trace and 40 MHz bandwidth.  Quite basic but will 
hopefully let me learn how to use an o'scope.  I'm new to this tool and 
can lean on generic books and videos for general use ideas.  However I 
sure would be more comfortable with the actual manual to let me know 
exactly what the controls do.  As a quick example I note that there is a 
small pin that offers 1.0v for calibration.  I route this back into 
channel one and see it has a bit over 8v vertical deflection.  Here I'm 
stumped and unsure what and how to proceed.  At any rate, just thought 
someone might have a copy or something close in their archives.
thanks.  .paul.