Table of Contents
Advertisement
Type 585A
SECTION 2
OPERATING INSTRUCTIONS
Introduction
The Type 585A is a high speed laboratory oscilloscope.
Risetime and bandwidth characteristics depend on the plug-
in unit and probe used with the oscilloscope. With the Type
82 and 86 Plug-In Unit the bandwidth at 0.1 V Icm is 85
MHz or greater with an equivalent risetime of 4.1 ns or less.
See Characteristics section.
Type 81 or Type 81 A Adapter equips the oscilloscope to
accept any Tektronix Letter Series or 1 Plug-In Unit. Applica-
tions include many general purpose laboratory measurements.
This section describes the function of the front panel con-
trols and connectors, power requirements with power trans-
former wiring diagram for a range of primary input voltages
and fan connections for either 110-124 or 220-248 volt opera-
tion. The section then describes some oscilloscope basic
measurement applications.
POWER CONNECTIONS
Unless otherwise indicated, the- Type 585A is shipped with
the power transformer and fan wired for 117-volt AC input.
A connection diagram on the side of the transformer and
Fig.2~
1, show alternative connections for other input voltages
to the power transformer. When the transformer is changed
from 108-124 volts to a 216-248 volts connection, the fan
wiring must be changed. Fig. 2-2 shows the fan connections
for each voltage range.
FUNCTIONS OF CONTROLS
AND CONNECTORS
Time Base Controls
NOTE
The Time Base A and Time Base B controls serve
similar functions with the exception of the LENGTH
control.
TRIGGERING
LEVEL
STABILITY
TRIGGER
SLOPE
TRIGGERING
SOURCE
INT
Selects the amplitude point on the trigger-
ing signal where sweep-triggering occurs.
Can be adjusted to an optimum triggering
point or the control can be set to PRESET
position to eliminate further adjustments.
This position provides adequate triggering
stability for most applications.
Selects either the rising (+) or falling (-)
portion of the trigger signal and up to
+
10 V (external) in amplitude.
Selects either internal, external or line sig-
nal, for trigger.
HF SY.NC: Provides stable triggering of
displays from 5 MHz to 250 MHz with a
fraction of a centimeter of display ampli-
tude.
Fig. 2-1. The power transformer has two extra windings permitting nominal primary voltages of 110, 117, 124, 220, 234, 248 volts,
SO
to 60 cycle operation.
©I
2-1
Advertisement
Table of Contents
