Tektronix 2230 Service Manual

Operating Information—2230 Service
The STORE mode display is the A Intensified
trace only. The intensified zone on the A trace
indicates the approximate delay position and
length of the B Delayed Sweep. The displayed
position of the intensified zone is updated after
each trigger. The A SEC/DIV, B SEC/DIV, and B
DELAY TIME POSITION settings are displayed
on the crt readout. In BOTH, STORE mode
acquisitions are controlled by the A SEC/DIV
switch.
B—Displays either the NON STORE or the
STORE B Sweep trace. The A SEC/DIV, B
SEC/DIV, and B DELAY TIME POSITION settings
are displayed on the crt readout, just as in BOTH.
The STORE mode waveform acquisitions are con
trolled by the B SEC/DIV switch.
0 ) B DELAY TIME POSITION Control—Adjusts the
delay between the start time of the A Sweep and the
time that the B Sweep either starts (RUNS AFTER
DLY) or can be triggered (Triggerable After Dly). (The
A Sweep does not have to be displayed.) The delay
time is variable from 0.5 to 10 times the A SEC/DIV,
plus 300 ns.
In Triggerable After Delay, the delay time readout
indicates the time that must elapse after the A
trigger before the delayed sweep or delayed acquisi
tion can be triggered; not the actual position of the
trigger point. However, the readout of the delay time
on the crt follows the setting of the B DELAY TIME
POSITION control in either B Trigger mode.
The setting of the 1K/4K switch affects the delay
time position setting for STORE mode displays by a
factor of approximately four times. When switching
between IK and 4K record lengths, the delay time
position setting must be readjusted to obtain the
same delay time.
0 ) Horizontal POSITION Control— Positions all the
NON STORE waveforms horizontally over a one-
sweep-length range (either XI or X I0 Magnified).
Using the Horizontal POSITION control, STORE
mode waveforms may be positioned over a range of
only one display window. When a STORE mode
acquisition display is longer than one screen (as in
4K records and/or X I0 MAG), the CURSORS POSI
TION control is used to position the display window
to any position of the acquisition record. The Hor
izontal POSITION control does not position the crt
readout displays.
TRIGGER
Refer to Figure 2-7 for location of items 27 through 38.
NOTE
The Trigger controls affect the acquisition o f the
next waveform. They are inactive in SAVE Acquisi
tion mode.
(27) A TRIGGER Mode Switches—Determine the NON
STORE A Sweep triggering mode. STORE mode
triggering depends on the position of the A SEC/DIV,
the SCAN/ROLL switch, and the A Trigger mode.
The trigger position is marked by a T on acquired
waveforms.
Figure 2-7- Triflger controls, connector, end indicator.
2-12

Tektronix 2230 Specifications

General

Brand	Tektronix
Model	2230
Category	Test Equipment
Language	English