Operation And Usee; Configuration Of The Display And Control Panel E - Philips PM 5191 Operating Manual

3.5.
3.5.1.
E 3-3
OPERATION AND USE
Configuration of the display and control panel (Fig. 1)
This display (3) consists of 2 sectors for the following indications (from left to right):
— frequencies (8 digits):
basic frequency or frequency increment
— output voltage/address (4 digits)
output voltage or level, or voltage or level increment, or remote control address.
The keyboard is subdivided into five functional main sectors:
— WAVE FORM (15)
direct setting of the wave form
— FREQUENCY (13)
setting of the basic frequency and frequency interval for the frequency STEP-function
— MODULATION (12)
setting of the modulation mode internal or external.
— OUTPUT SIGNAL (11)
setting and stepping of the output voltage or level as well as setting the remote addresses.
— NUMERIC KEYBOARD (5,8,9)
input of figures and decimal point, erasing the last figure entered for correction purposes, and the
ENTER function (implementation of the numeric input values).
LEDs in the respective keys on the control panel indicate the actual parameters.
There are two kinds of keys:
— keys having a direct effect on the output signal.
keyboard WAVE FORM: all
keyboard FREQUENCY: Hz/kHz, STEP—, STEP+
keyboard MODULATION: OFF, EXT, INT
keyboard LEVEL: STEP—, STEP+
These keys have direct effect on the output if their respective parameters are complete and within
the correct range.
— keys with a ,,pre-selection" character.
keyboard FREQUENCY: FREQ and AFREQ
keyboard LEVEL: Vpp, dBm, Vrms, Vdc, ALEVEL and ADDRESS
The ,,pre-selection" keys have a dual function:
— when pressed once the respective display is blanked and ready for a numeric entry.
— when operated twice, the respective display is blanked and then the actual numerical value is
displayed. This way every parameter not already being shown can be displayed.
When the display is blanked by operating one of the pre-selection keys once and during the following
numerical input, the unit is ina NOT ENTERED state, i.e. the input parameter value has not yet been
activated and can be corrected using the key RUB OUT. This state is recognised by the NOT ENTERED
LED flashing at the right-hand side of the display. The input value is implemented after the ENTER
key has been pressed.