5. CH 1 and CH 2 Input COUPLING Trace Shift
a.
Position trace to center graticule line.
b.
Set CH 2 Input COUPLING to DC.
c.
CHECK—trace shift does not exceed 0.25 division.
d.
Set:
VERTICAL MODE
CH 1 Input COUPLING
e.
Position trace to center graticule line.
f.
Set CH 1 Input COUPLING to DC.
g.
CHECK—trace shift does not exceed 0.25 division.
6. CH 2 INVERT Trace Shift
a.
Set:
VERTICAL MODE
CH 2 Input COUPLING
b.
Position trace to center horizontal graticule line.
c.
Set CH 2 INVERT On.
d.
CHECK—trace shift does not exceed one division.
e.
Set:
CH 2 INVERT
CH 2 Input COUPLING
7. CH 1 and CH 2 VAR VOLTS/DIV Range
a.
Set VERTICAL MODE to CH 1 (CH 2 off).
b.
Position CH 1 and CH 2 traces to the center horizontal graticule line.
2245A Operators
Performance Check Procedure
CH 1 (CH 2 off)
GND
CH 2 (CH 1 off)
GND
Off
DC
7-13