Controls, Connectors, And Display; General Information; Display Window, Changing Settings - Tektronix PFG 5505 Instruction Manual

Operating Instructions
CONTROLS, CON NECTORS, AN D DISPLAY

General Information

All controls a nd connectors used for local (manual)
operation of the PFG 5105/5505 are located on the
front panel. The exception is the ON/OFF switch for
the PFG 5505 only, which is located on the rear
panel. The front panel keys are used to select a
parameter, or function for the waveform output ; to
display the current value of the parameter, or function;
and to change its value, if desired. Other keys select
the trigger source and mode. The DATA keypad is
used to enter a different value for the selected key
function. Some keys have built-in LEDs that illuminate
to indicate that the associated function is active. On
all keys that i nclude LEDs, the indicators light only
while a parameter or function is selected, or is active.

Display Window, Changing Settings

The PFG 5105/5505 has a two-row LCD in the display
window that can show up to 16 characters per row.
When the PFG 5105/5505 is on, each row displays
a function, parameter, etc . , and its current setting.
For example, the default display shows the current
setting for frequency and amplitude. Depending on
the key function, selection allows the user to:
• Display the current setting of a key function. For
example, if frequency a nd amplitude are displayed,
press N BURST to see its current setting. ,
• Change the current setting of a key function. For
example, press N BURST, press a DATA . numeric
key such as 6, press ENTER.
• Turn on, or enable the selected key function, without
changing its current setting. For example, if DC
was previously set to 1 V, but is now off (LED off),
turn on the DC function by pressing DC, ENTER.
• Display the current setting of a key function, change
that setting using the DATA keypad ( numeric and
units of measure keys), and turn on or enable the
function, etc., with the new setting. For example,
press SWEEP, DATA key 4, ENTER. The output at
the SWEEP OUT connector is a logarithmic sweep.
(The other displayed characteristic or one that is not
displayed can be selected by pressing its front panel
key.)
2 -4
A right caret in the left display area i ndicates which
of the two displayed items is "selected", or "can be
acted upon" using the front panel keys. Refer to Fig.
2-4, part A.
An asterisk is displayed in place of the right caret
when a DATA key is pressed (to change the displayed
numeric setting) . Refer to Fig. 2-4, part B. The DATA
keys are used to change the displayed numeric
setting; some DATA keys also can change the units
of measure (units are function key dependent). The
asterisk i ndicates that the settings change is incom­
plete and must be concluded by pressing the ENTER
key. Refer to Fig. 2-4, part C.
A numeric settings change in process can be aborted
by pressing any key other than DATA and INST ID
keys ; also a timeout of about 9 seconds will abort
the incomplete change. When a settings change is
completed, the asterisk reverts to a right caret.
> FREQ
AMPL
A . Power-on display,
* FREQ
AMPL
8. FREQ setting change in process.
With FREQ selected , user
pressed DATA keys 5, 0, O
> FREQ
AM PL
C. FREQ setting change com plete.
User pressed ENTER.
Fig, 2-4. Front Panel Numeric Setting Change.
PFG 5 1 05/5505 I nstruction Ma nual
Hz
1 000
5.00 V
Hz
500
5.00 V
Hz
500
5.00 V