46
Subject to change without notice
13
P2001:
100 Hz square wave CH I
– Locate and identify P2001 on YP-Board.
– Connect a 25 mV
pp
/ 100 Hz square wave signal via a 50 Ω
cable and a 50 Ω through-terminator to input channel I.
– Set input attenuator CH I to 5 mV/div.
– Set input coupling to DC.
– Set time base to 2 ms/div.
– Adjust P2001 for a fl at top on the square wave signal.
Correct
Overcompensate
Undercompensate
14
P2005:
Variable balance CH I
– Locate and identify P2005 on YP-Board.
– Set input attenuator CH I to 5 mV/div.
– Press channel I GND pushbutton (IN position).
– Set trace with Y-POS I control to the horizontal centre line
of the graticule.
– Rotate variable gain knob of channel I continuously fully
counter clockwise (left stop) and clockwise (right stop)
and adjust P2005 for equal trace position (no vertical trace
shift).
CW incorrect
CCW incorrect
CW correct
CCW correct
P2008
P2011 P2012
P2006
P2007
P2005
P2002
P2001
C2007
C2010
C2009
C2011
P2003
C2107
C2108
C2103
C2110
P2016
P2014
P2015
P2010
P2009
YP-Board
P2008
P2011 P2012
P2006
P2007
P2005
P2002
P2001
C2007
C2010
C2009
C2011
P2003
C2107
C2108
C2103
C2110
P2016
P2014
P2015
P2010
P2009
YP-Board
A d j u s t m e n t P r o c e d e r e H M 3 0 3 - 6
