Check/Adjust Trace A Lig N M E N T; Adjust Geometry - Tektronix 2213 Instruction Manual

Adjustment Procedure— 2213 Service
b. Connect a leveled sine-wave generator via a 50 Q
cable and a 50 0 termination to the CH 1 OR X input
connector.
c. Adjust the generator output for a 4-division, 50 kHz
display.
d. ADJUST— Both the Astig adjustment (R887) and the
AUTO FOCUS control for the best focused display over the
range of the AUTO INTENSITY control.
e. Set the A SEC/DIV switch to 5 #ts.
f. ADJUST— Auto Focus Adj (R875) for the best
focused display. Do not change the front panel AUTO
FOCUS control.
g. Disconnect the test setup.
5. C h ec k/A d ju s t T race A lignm ent (TR A C E
ROTATION)
a. Set the Channel 1 AC-GND-DC switch to GND.
5-6
b. CHECK—That the trace is parallel to the center hori­
zontal graticule line.
c. ADJUST—The front-panel TRACE ROTATION con­
trol to align the trace with the center horizontal graticule line.
6. A djust G eo m etry (R 870)
a. Set:
CH 1 VOLTS/DIV
Channel 1 AC-GND-DC
b. Connect 50 time markers from the time-mark
ns
generator via a 50 Q cable and 50 G termination to the CH 1
OR X input connector.
c. Adjust the A AND B SEC/DIV Variable control for 5
markers per division.
d. ADJUST— Geom (R870) for minimum curvature of
the markers across the graticule area.
e. Disconnect the test setup.
50 mV
DC
REV NOV 1982