Operators Familiarization (Cont); Operator's Adjustments; Introduction; Baseline Trace - Tektronix 2215A Operator's Instruction Manual

Operators Familiarization- 2215A Operators
OPERATOR'S ADJUSTMENTS
INTRODUCTION
To verify the operation and accuracy of your instrument
before making measurements, perform the following
adjustment procedures. If adjustments are required beyond
the scope of the operators's adjustments, refer the
instrument to a qualified service technician.
Before proceeding with these instructions, refer to
"Preparation for Use" (Section 2).
Verify that the POWER switch is OFF (button out), then
plug the power cord into the power-source outlet.
If indications specified in these procedures cannot be
obtained, refer the instrument to a qualified service
technician.
BASELINE TRACE
First obtain a baseline trace, using the following
procedure.
1. Preset the instrument front-panel controls as follows:
Display
A and B INTENSITY Fully counterclockwise
FOCUS
Midrange
Vertical (Both Channels)
POSITION Midrange
VERTICAL MODE CH 1
BW LIMIT Off (button out)
VOLTS/DIV S0mV
VOLTS/DIV Variable CAL detent
INVERT Off (button out)
Input Coupling AC
Horizontal
A/ 8 SWP SEP
Off midrange
POSITION
Midrange
HORIZONTAL MODE
A
A and B SEC/DIV 0.5 ms
SEC/DIV Variable
CAL detent
X10 Magnifier Off (knob in)
B DELAY TIME
POSITION Fully counterclockwise
B TRIGGER
SLOPE
LEVEL
A TRIGGER
VAR HOLDOFF
Mode
SLOPE
LEVEL
A&BINT
A SOURCE
A EXT COUPLING
OUT
Fully clockwise
NORM
P-P AUTO
OUT
Midrange
VERT MODE
INT
AC
2. Press in the POWER switch button (ON) and allow the
instrument to warm up (20 minutes is recommended for
maximum accuracy).
3. Adjust the A INTENSITY control for desired display
brightness.
4. Adjust the Vertical and Horizontal POSITION controls
as needed to center the trace on the screen.
TRACE ROTATION
Normally, the resulting trace will be parallel to the center
horizontal graticule line, and the Trace Rotation adjustment
should not be required. If adjustment is needed, perform the
following procedure:
1 . Preset instrument controls and obtain a baseline
trace.
2. Use the Channel 1 POSITION control to move the
baseline trace to the center horizontal graticule line.
3. If the resulting trace is not parallel to the center hori-
zontal graticule line, use small flat-bit screwdriver to adjust
the TRACE ROTATION control and align the trace with the
center horizontal graticule line.
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