Performance Check Procedure—2213 Service
HORIZONTAL
Equipment Required (see Table 4-1):
Calibration Generator (Item 1)
Two 50-S2 BNC Cables (Item 4)
Leveled Sine-Wave Generator (Item 2)
Two 50-S2 BNC Terminations (Item 5)
Time-Mark Generator (Item 3)
INITIAL CONTROL SETTINGS
PROCEDURE STEPS
POWER ON (button in)
CRT
AUTO INTENSITY As desired
AUTO FOCUS Best focused display
1. Check Timing Accuracy
a. Connect 50-ns time markers from the time-mark
generator via a 50-fi cable and a 50-fi termination to the
CH 1 OR X input connector. Connect the generator Trigger
output via a 50-£2 cable and a 50-f2 termination to the
EXT INPUT connector.
Vertical
Channel 1 POSITION
VERTICAL MODE
CH 1 VOLTS/DIV
CH 1 VOLTS/DIV
Variable
INVERT
Channel 1 AC-GND-DC
Channel 2 AC-GND-DC
Midrange
CH 1
0.5 V
CAL detent
Normal (button out)
DC
GND
b. Use the Channel 1 POSITION control to center the
trace vertically. Adjust the TRIGGER LEVEL control for
a stable, triggered display.
c. Use the Horizontal POSITION control to align the
2nd time marker with the 2nd vertical graticule line.
NOTE
When making tim ing measurements, use as a reference
the same po in t on each tim e marker.
Horizontal
POSITION
HORIZONTAL MODE
SEC/DIV
SEC/DIV Variable
X10 Magnifier
DELAY TIME
MULTIPLIER
Midrange
NO DLY
0.05 jus
CAL detent
Off (knob in)
0.5 jus
<X1
d. CHECK—Timing accuracy is within 3% (0.24 division)
at the 10th vertical graticule line. Exclude the first 50 ns
of the sweep from the measurement.
e. Repeat parts b through d for the remaining SEC/DIV
switch settings and corresponding time-mark generator
output (Normal) settings given in Table 4-4.
Trigger
VAR HOLDOFF
MODE
SLOPE
LEVEL
I NT
SOURCE
EXT COUPLING
NORM
NORM
S
Midrange
VERT MODE
EXT
DC-r10
f. Pull out the X10 Magnifier knob.
g. CHECK—Magnified timing accuracy for each SEC/
DIV switch setting and corresponding time-mark generator
output (X10 Magnified) setting given in Table 4-4. At each
setting combination, timing must be accurate within 5%
(0.4 division) at the 10th vertical graticule line. Exclude
the first 50 ns of the sweep and any portion past the 100th
magnified division.
4-6
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