Operator S Adjustments; Introduction; Baseline Trace; Trace Rotation - Tektronix 2215A Instruction Manual

level difference is more than 10 times the VOLTS/DIV
switch setting:
1. Set the Input Coupling switch to GND.
2. Insert the probe tip into the oscilloscope GND connec­
tor and wait several seconds for the input coupling capacitor
to discharge.

INTRODUCTION

To verify the operation and accuracy of your instrument
before making measurements,
adjustment procedures. Adjustments beyond the scope of
"Operator's Adjustments"
Procedure" Section 5 of this manual.
Before proceeding with these instructions, refer to
"Preparation for Use" in this section for first-time start-up
considerations.
Verify that the POWER switch is OFF (push button out),
then plug the power cord into the power-source outlet.

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
FOCUS
Vertical (Both Channels)
POSITION
VERTICAL MODE
BW LIMIT
VOLTS/DIV
VOLTS/DIV Variable
INVERT
Input Coupling
OPERATOR'S ADJUSTMENTS
perform the following
are in the "Adjustment
Fully counterclockwise
Midrange
Midrange
CH 1
Off (button out)
50 mV
CAL detent
Off (button out)
AC
Operating Instructions— 2215A Service
3. Connect the probe tip to the signal source and wait
several seconds for the input coupling capacitor to charge.
4. Set the Input Coupling switch to AC. The display will
remain on the screen, and the ac component of the signal
can be measured in the normal manner.
Horizontal
A/B SWP SEP
POSITION
HORIZONTAL MODE
A and B SEC/DIV
SEC/DIV Variable
X I0 Magnifier
B DELAY TIME POSITION
B TRIGGER
SLOPE
LEVEL
A TRIGGER
VAR HOLDOFF
Mode
SLOPE
LEVEL
A&B INT
A SOURCE
A EXT COUPLING
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
Off midrange
Midrange
A
0.5 ms
CAL detent
Off (knob in)
Fully counterclockwise
OUT
Fully clockwise
NORM
P-P AUTO
OUT
Midrange
VERT MODE
INT
AC
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