Product Description
1-6
TDS 420A, TDS 430A & TDS 460A Service Manual
Storage
TDS 400A Digitizing Oscilloscopes can save acquired waveforms in any of four
nonvolatile REF (reference) memories. You can save any input-channel
waveform to any REF memory, or you can move a stored reference from one
REF memory to another. You can display any or all of the saved waveforms for
comparison with the waveforms being currently acquired.
I/O
TDS 400A Digitizing Oscilloscopes are fully controllable and capable of sending
and receiving waveforms over the GPIB interface (IEEE Std 488.1-1987/IEEE
Std 488.2-1987 standard). Self-compensation and self-diagnostic features built
into the digitizing oscilloscope to aid in fault detection and servicing are also
accessible using commands sent from a GPIB controller. The oscilloscope also
provides the following output capabilities:
H Output of the current oscilloscope screen, including waveforms, to a variety
of graphic printers and plotters to obtain hard copies. You can start a
hardcopy from the oscilloscope front panel; you are not required to connect
into a system-controller environment. The hard copies obtained are
WYSIWYG (What-You-See-Is-What-You-Get), based on what is displayed
at the time hardcopy is invoked.
H Output of display hard copies, of oscilloscope control setups, and of
waveforms to a floppy disk in the oscilloscope file system.
H Output of the oscilloscope display for monitoring (or other processing) from
a VGA-compatible video output on the oscilloscope rear panel.
Display
The TDS 400A Digitizing Oscilloscopes offer flexible display options. You can
customize the following attributes of your display:
H Intensity: waveforms, readouts, graticule, and other things
H Style of waveform display(s): vectors or dots, intensified or non-intensified
samples, and infinite or variable persistence
H Display format: XY or YT and graticule type
This digitizing oscilloscope also provides an easy way to focus in on those
waveform features you wish to examine up close. B y using ZOOM, you can
magnify the waveform parameter using the vertical and horizontal controls to
expand (or contract) and position it for viewing.
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