Tektronix WFM601, Service Manual

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Operating Instructions
2–24
WFM 601 - Service Manual
Displaying a Signal
The paragraphs below describe how to use the various front-panel buttons to
display exactly the signal or signals you want.
There are two rear-panel loop-through serial digital inputs. The inputs can be
displayed singly or in several different combinations.
Only one input selection can be made at a time. SERIAL A/SERIAL B toggles
between A and B nputs.
The input channels can be displayed in combination. Each channel button turns
on an individual channel, then off. Pushing another channel button does not
cancel the current selection, but adds to it.
Selecting SERIAL A can provide a side-by-side display of the CH-A1, CH-A2,
and CH-A3, or any combination depending on which channels are selected,
inputs (SERIAL B displays CH-B1, CH-B2, and CH-B3).
Sweep buttons are used to select the waveform sweep rate. LINE/FIELD toggles
through four sweep rate selections: one line, two line, one field, and two field. In
parade mode, the LINE/FIELD button becomes a two-way switch, toggling
between line and field.
The MAG button is used with LINE/FIELD to provide horizontal magnification
of each rate as follows:
H
One line magnified = 200 ns/division
H
Two line magnified = 1
µ
s/division
H
One field or two field magnified = approximately
X
20 magnification.
Inputs
SERIAL A/SERIAL B
Sweep