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Section 52221 Operators
C
Л
n
П
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OPERATOR'S
CHECKS
AND
ADJUSTMENTS
Horizontal
П 7
To verify the operation and basic accuracy of your
instrument before making measurements , perform the fol
lowing checks and adjustment procedures. If adjustments
are required beyond the scope of these operator's checks
and adjustments , refer the instrument to qualified service
personnel.
SEC/ DIV
Var Sec /Div
POSITION
X10 Mag
0.5 ms
CAL (in detent)
Midrange
Off (Var Sec /Div knob in)
Trigger
VAR HOLDOFF
Before proceeding with these instructions, refer to Sec
tion 2 , " Preparation for Use," to prepare the instrument
for the initial start -up before applying power . A complete
instrument Performance Check can be found in Appendix
A of this manual .
INT
SOURCE
Mode
LEVEL
NORM ( fully
counterclockwise )
VERT MODE
INT
P- P AUTO
For a stable display
(with signal applied )
OUT : ]
OFF
INITIAL SETUP
SLOPE
HF REJECT
1. Verify that the POWER switch is OFF ( switch is in
the out position) , then plug the power cord into the ac
power outlet.
Storage
STORE / N ON - STORE
NON - STORE ( button out )
2. Press in the POWER switch ( ON ) and set the instru
ment controls to obtain a baseline trace :
3. Adjust the INTENSITY and FOCUS controls for the
desired display brightness and best focused trace.
Display
Л
1 П
nn
Л
П
П
T
П
П
П
П
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4. Adjust the Vertical and Horizontal POSITION con
trols to position the trace within the graticule area .
INTENSITY
STORE /READOUT
INTENSITY
FOCUS
Midrange
Midrange (with
READOUT toggled on )
Best defined display
5. Allow the instrument to warm up for 20 minutes
before commencing the adjustment procedures. Reduce
the INTENSITY levels during the waiting time .
Vertical ( Both Channels )
TRACE ROTATION ADJUSTMENT
NOTE
VERTICAL MODE
POSITION
VOLTS / DIV
AC-GND-DC
Var Volts/ Div
BW LIMIT
X - Y Display
CH 1
Midrange
50 mV
DC
CAL (in detent)
Off ( button out)
Off ( button out)
o
Normally , the trace will be parallel to the center
horizontal graticule line,
and TRACE ROTATION
adjustment is not required.
5-1
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