Section 5 Operator's Checks And; Introduction; Trace Rotation - Tektronix 2465 Instruction Manual

Section 5—2465 Operators
OPERATOR'S CHECKS
AND ADJUSTMENTS
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).
Verify that the POWER switch is OFF (push button
out), then plug the power cord into the power outlet.
If indications specified in these procedures cannot be
obtained, refer the instrument to a qualified service
technician.
INITIAL SETUP
1. Press in the POWER switch button (ON) and allow
the instrument to warm up (20 minutes is recommended
for maximum accuracy).
2. Set instrument controls to obtain a baseline trace:
Display
READOUT
INTENSITY Midrange between ""MIN""
and fully clockwise
FOCUS Midrange
Vertical
POSITION Midrange
MODE CH 1
BW LIMIT Off (button out)
CH 1 VOLTS/DIV 10 mV
CH 1 Input Coupling 1 MQ GND
Horizontal
A AND B SEC/DIV Locked together at 1 ms
SEC/DIV VAR Calibrated detent
POSITION Midrange
10X MAG Off (button out)
Trigger
HOLDOFF Fully counterclockwise
LEVEL Midrange
MODE AUTO LVL
SOURCE VERT
COUPLING DC
SLOPE +
3. Adjust the INTENSITY and READOUT INTENSITY
controls for desired display and readout brightness and best
trace definition.
4. Adjust the Vertical and Horizontal POSITION
controls to position the trace within the graticule area.
TRACE ROTATION ADJUSTMENT
1. Preset instrument controls and obtain a baseline trace
as described in "Initial Setup."
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.