R.V.R. Electronica PTRL, User Manual

Page: 27 / 48

PTRL & RXRL LCD
23 / 44 User Manual Rev. 1.2 - 31/01/05
7. External Description
This chapter describes the elements which are present on the front and rear pannel
of the PTRL-LCD and the RXRL-LCD.
7.1 Front Panel of the PTRL LCD
Figure 7.1
[1] AIR FLOW Grid for the air flow
[2] ON Green LED, illuminato when the transmitter is feeded
[3] LOCK If it is on, indicates that the PLL is locked at the reference
frequency
[4] FOLDBACK yellow LED, if it is flashing, it indicates the intervention of the
foldback function (automatic reduction of the erogated power)
[5] R.F. MUTE If it is flashing, it indicates that the exciter is not erogating power
because it is inhibitted by an external interlock
[6] CONTRAST Regulation Trimmer of the contrast of the display
[7] ESC Push-button to press to exit from a menu
[8] SINISTRA/SU’ Push-button for the navigation in the system composed of several
menus and for the modification of the parameters
[9] DESTRA/GIU’ Push-button for the navigation in the system composed of several
menus and for the modification of the parameters
[10] ENTER Push-button for the confirmation of a parameter and to enter the
menus
[11] DISPLAY Liquid crystal display
[12] POWER ON/OFF switch. It switches off the exciter without disconnecting
the AC supply