Tektronix 2230 Service Manual

Performance Check Procedure—2230 Service
HORIZONTAL
Equipment Required (see Table 4-1):
Calibration Generator (Item 1)
Leveled Sine-Wave Generator (Item 2)
Time-Mark Generator (Item 3)
50 a BNC Cable (Item 8)
50 fl BNC Termination (Item 12)
INITIAL CONTROL SETTINGS
PROCEDURE STEPS
Vertical
1. Check Timing Accuracy and Linearity
Channel 1 POSITION Midrange
a. Connect the time-mark generator output via a 50 B
VERTICAL MODE CH 1
cable and a 50 ii termination to the CH 1 OR X input
X-Y
Off (button out)
connector.
BW LIMIT
"Off (button out)
CH 1 VOLTS/DIV
0.5 V
*
CH 1 VOLTS/DIV Variable
CAL detent
b. Select 50 ns time markers from the time-marker
Channel 1 AC-GND-DC DC
generator.
Horizontal
c. Use the Channel 1 POSITION control to center the
POSITION Midrange
display vertically. Adjust the A TRIGGER LEVEL control
HORIZONTAL m ode
A
for a stable, triggered display.
A SEC/D1V 0.05 pS
SEC/DIV Variable CAL detent
XI0 Magnifier
Off (knob in)
d. Use the Horizontal POSITION control to align the
B DELAY TIME POSITION
Fully counterclockwise
2nd time marker with the 2nd vertical graticule line.
B TRIGGER
SLOPE
OUT
e. CHECK—Timing accuracy is within 2% (0.16 divi-
LEVEL Fully clockwise
sion at the 10th vertical graticule line), and linearity is
within 5% (0.1 division over any 2 of the center 8
A TRIGGER
divisions).
VAR HOLDOFF NORM
Mode
P-P AUTO
NOTE
SLOPE
OUT
LEVEL
Midrange
For checking the timing accuracy of the A SEC/DIV
HF REJECT
OFF
switch settings from 50 ms to 0.5 s, watch the time
A&B INT
VERT MODE
marker tips only at the 2nd and 10th vertical grati-
A SOURCE INT
cule lines while adjusting the Horizontal POSITION
A EXT COUPLING DC-4-10
control.
Storage
STORE/NON STORE
NON STORE (button out)
1. Repeat parts c through e for the remaining A
SAVE/CONTINUE
CONTINUE (button out)
SEC/DIV and time-mark generator setting combinations
PRETRIG/POST TRIG
POST TRIG (button out)
shown in Table 4-5 under the "Normal (XI)” column.
ROLUSCAN
SCAN (button out)
1K/4K
4K (button out)
POSITION CURS/
POSITION CURS
g. Set:
SELECT WAVEFORM
(button in)
WAVEFORM REFERENCE/
WAVEFORM REFERENCE A SEC/DIV 0.05 ms
MENU SELECT
(button in) X I0 Magnifier On (knob out)
4-12

Tektronix 2230 Specifications

General

Brand	Tektronix
Model	2230
Category	Test Equipment
Language	English