Tektronix 2445 User Manual

OPERATOR'S CHECKS
AND ADJUSTMENTS
Section 5-2445 Operators
INTRODUCTION
To verify the operation and accuracy of your instru
ment before making measurements, perform the following
check and adjustment procedures. If adjustments are
required beyond the scope of these operator's checks
and adjustments, refer the instrument to a qualified service
technician.
Before proceeding with these instructions, refer to
"Preparation for Use" (Section 2).
Horizontal
A AND B SEC/DIV
SEC/DIV VAR
POSITION
10X MAG
Trigger
HOLDOFF
LEVEL
MODE
SOURCE
COUPLING
SLOPE
Locked together at 1 ms
Calibrated detent
Midrange
Off (button out)
Fully counterclockwise
Midrange
AUTO LVL
VERT
DC
Verify that the POWER switch is OFF (push button
out), then plug the power cord into the power outlet. 3. Adjust the INTENSITY and READOUT INTENSITY
controls for desired display and readout brightness and best
trace definition.
If indications specified in these procedures cannot be
obtained, refer the instrument to a qualified service
technician. 4 Adjust the Vertical and Horizontal POSITION
controls to position the trace within the graticule area.
INITIAL SETUP
1. Press in the POWER switch button (ON) and allow
the instrument to warm up (20 minutes is recommended
for maximum accuracy).
TRACE ROTATION ADJUSTMENT
1. Preset instrument controls and obtain a baseline trace
as described in "Initial Setup."
2. Set instrument controls to obtain a baseline trace:
Display
READOUT
INTENSITY
FOCUS
Vertical
POSITION
MODE
BW LIMIT
CH 1 VOLTS/DIV
CH 1 Input Coupling
Midrange between "MIN
and fully clockwise
Midrange
Midrange
CH 1
Off (button out)
10 mV
1 MH GND
2. Use the Channel 1 POSITION control to move the
baseline trace to the center horizontal graticule line.
NOTE
Normally, the resulting trace will be parallel to the
center horizontal graticule line, and the Trace Rota
tion adjustment should not be required.
3. If the trace is not parallel to the center horizontal
graticule line, use a small-bladed screwdriver to adjust the
TRACE ROTATION control (see Figure 3-1) and align the
trace with the center horizontal graticule line.
5-1

Tektronix 2445 Specifications

General

Brand	Tektronix
Model	2445
Category	Test Equipment
Language	English