Display; Check/Adjust Focus; Check/Adjust Trace Rotation - Tektronix 213 DMM Instruction Manual

Performance Check-213 Service
Equipment Required
Screwdriver
Control Settings
POWER
5-2
DMM
VOLTS
VOLTS-mA/DIV
SEC/DIV
INPUT COUPLING
TRIGGER
INTENSITY
LEVEL-SLOPE
VOL TS-mA/DIV VAR
HORIZ MGF VAR
A. DISPLAY
ON
Button out
Button in
1 (black scale)
1m
GND
INTL AC AUTO
Minimum for a visible
display
Midrange of either slope
(do not set at midrange
of control)
CAL detent
CAL detent
1. CHECK/ADJUST FOCUS
a. Set SEC/DIV to .5 (spot will slowly sweep across the
screen.
b. CHECK-Spot is well defined.
c. ADJUST -FOCUS (side-panel screwdriver adjustment)
for the best spot definition.
d. Reset SEC/DIV to 1 m.
2. CHECK/ADJUST TRACE ROTATION
a. Vertically position the trace on the center horizontal
graticule line.
b. CHECK- Trace is parallel to the center horizontal
graticule line.
c. ADJUST - TRACE ROTATE (side-panel screwdriver
adjustment) to make trace parallel to the center horizon-
tal graticule line.
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