Installation; Front Panel Controls And Connectors; Front-Panel Controls And Connectors - Tektronix 7A18A Instruction Manual

General
Installation
OPERATIN
To effectively use the 7A1 BA, the operation and capabili-
ties of the instrument must be known. This section de-
scribes front-panel control functions, general information on
signal input connections, and other subjects that pertain to
various measurement applications .
The 7A1 8A is calibrated and ready for use as received . It
can be installed in any compartment of Tektronix 7000-Se-
ries oscilloscopes, but is intended for principal use in vertical
plug-in compartments . To install, align the upper and lower
rails of the 7A18A with the oscilloscope tracks and fully in-
sert it . The front will be flush with the front of the oscillo-
scope when the 7A1 8A is fully inserted, and the latch at the
bottom-left corner of the 7A1 8A will be in place against the
front panel.
To remove the 7A1 8A, pull on the latch (which is in-
scribed with the unit identification "7A18A") and the 7A18A
will unlatch . Continue pulling on the latch to slide the 7A1 8A
out of the oscillscope .
FRONT PANEL CONTROLS AND
CONNECTORS
The following descriptions apply to the controls and con-
nectors of both Input Amplifier channels when applicable .
See Fig. 2-1 .
Input Connector
Provides signal connection to the
channel.
AC-GND-AC Selects signal input coupling mode .
INSTRUCTIONS
AC-The AC component of the sig-
nal is coupled to the amplifier in-
put while the DC component is
blocked. POSITION
GND-Grounds the amplifier input
while maintaining the same load
for the input signal . Provides a
charge path for the AC coupling IDENTIFY
capacitor to precharge the input
circuit before switching the input
to AC .
Section 2-7A18A
4329-07
Fig. 2-1 . Front-panel controls and connectors . (7A18A shown.)
DC-Both AC and DC components
of the signal are coupled to the
amplifier input.
Controls position of the trace. Posi-
tioning of the trace in the "ADD"
Display Mode is controlled by CH 1
POSITION control only .
Deflects trace about 0.3 division for
trace identification . In instruments
with readout, also replaces readout
with the word "IDENTIFY" .