Agilent Technologies 89410A Service Manual page 10

15
-The knob's primary purpose is to move a marker along the trace. But
you can also use it to change values during numeric entry, move a cursor
during text entry, or select a hypertext link in help topics.
16
-Use the Marker/Entry key to determine the knob's function. With the
Marker indicator illuminated, the knob moves a marker along the trace.
With the Entry indicator illuminated, the knob changes numeric entry
values.
17
-Use the ENTRY hardkeys to change the value of numeric parameters
or to enter numeric characters in text strings.
18
-The optional CHANNEL 2 input connector routes your test signal or
DUT output to the analyzer's receiver. Input impedance is selectable: 50
ohms, 75 ohms, or 1 megohm. For easy of upgrading, the CHANNEL 2
BNC connector is installed even if option AY7 (second input channel) is
not installed.
For more details on the Agilent 89410A front panel, display the online help
topic ''Front Panel.''
Before applying power
Verify that the product is set to match the available line voltage, the
correct fuse is installed, and all safety precautions are taken. Note the
instrument's external markings described in
instrument markings"
Ground the instrument
To minimize shock hazard, the instrument chassis and cover must be
connected to an electrical protective earth ground. The instrument must
be connected to the ac power mains through a grounded power cable,
with the ground wire firmly connected to an electrical ground (safety
ground) at the power outlet. Any interruption of the protective
(grounding) conductor or disconnection of the protective earth terminal
will cause a potential shock hazard that could result in personal injury.
Fuses
Use only fuses with the required rated current, voltage, and specified
type (normal blow, time delay). Do not use repaired fuses or
short-circuited fuse holders. To do so could cause a shock or fire hazard.
Safety symbols and instrument markings
Symbols and markings in manuals and on instruments alert you to
potential risks, provide information about conditions, and comply with
x
on page x.
"Safety symbols and