Tektronix 2230

Appendix A-2230 Operators
HORIZONTAL
Equipment Required (see Table A-1):
Calibration Generator (Item 1)
Leveled Sine-Wave Generator (Item 2)
Time-Mark Generator (Item 3)
INITIAL CONTROL SETTINGS
Vertical
Channel 1 POSITION
VERTICAL MODE
X-Y
BW LIMIT
CH 1 VOL TS/DIV
CH 1 VOL TS/DIV Variable
Channel 1 AC-GND-DC
Horizontal
POSITION
HORIZONTAL MODE
A SEC/DIV
SEC/DIV Variable
X10 Magnifier
B DELAY TIME POSITION
B TRIGGER
SLOPE
LEVEL
A TRIGGER
VAR HOLDOFF
Mode
SLOPE
LEVEL
HF REJECT
A&BINT
A SOURCE
A EXT COUPLING
Storage
Midrange
CH 1
Off (button out)
Off (button out)
0.5 V
CAL detent
DC
Midrange
A
0.05 µ.S
CAL detent
Off (knob in)
Fully counterclockwise
OUT
Fully clockwise
NORM
P-P AUTO
OUT
Midrange
OFF
VERT MODE
INT
DC+10
STORE/NON STORE NON STORE (button out)
SAVE/CONTINUE CONTINUE (button out)
PRETRIG/POST TRIG POST TRIG (button out)
ROLL/SCAN SCAN (button out)
1 K/4K 4K (button out)
POSITION CURS/ POSITION CURS
SELECT WAVEFORM (button in)
WAVEFORM REFERENCE/ WAVEFORM REFERENCE
MENU SELECT (button in)
A-12
50 Q BNC Cable (Item 7)
50 Q BNC Termination (Item 10)
PROCEDURE STEPS
1. Check Timing Accuracy and Linearity
a. Connect the time-mark generator output via a 50 Q
cable and a 50 Q termination to the CH 1 OR X input
connector.
b. Select 50 ns time markers from the time-marker
generator.
c. Use the Channel 1 POSITION control to center the
display vertically. Adjust the A TRIGGER LEVEL control
for a stable, triggered display.
d. Use the Horizontal POSITION control to align the
2nd time marker with the 2nd vertical graticule line.
e. CHECK- Timing accuracy is within 2% (0.16 divi-
sion at the 10th vertical graticule line), and linearity is
within 5% (0.1 division over any 2 of the center 8
divisions). For checking the timing accuracy of the A
SEC/DIV switch settings from 50 ms to 0.5 s, watch the
time marker tips only at the 2nd and 10th vertical graticule
lines while adjusting the Horizontal POSITION control.
f. Repeat parts c through e for the remaining A
SEC/DIV and time-mark generator setting combinations
shown in Table A-5 under the "Normal (X1)" column.
g. Set:
A SEC/DIV
0.05 µ,S
X1 O Magnifier
On (knob out)
h. Select 10 ns time markers from the time-mark
generator.
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