Print Date 08/04/14 Page 30 of 34 S79005-00MA-05
3.1.3 E2322 Power Supply Unit
Marked
Type
Function
DC
LED Display
Green indicates dc output >75-85% of its rated value.
AC
LED Display
Green indicates ac input >78-86Vrms
3.1.4 E2023 Transmitter Controller Unit
Marked
Type
Function
SYSTEM
NORMAL
LED Display
Red indicates one or more system conditions are abnormal
(and should be cleared).
Green indicates all significant system conditions are
normal.
Amber indicates ‘Power-on-Reset’ period
CONTRAST
Adjustable Pot. (1T)
To set the contrast of Controller’s liquid crystal display
(LCD) for best contrast in the prevailing viewing and
ambient temperature conditions.
MAIN
Membrane Switch
To directly select the main LCD screen showing the
Transmitter’s output forward power, reverse power state
and combiner heatsink temperature.
MODE
Membrane Switch
To select other Controller functions (‘modes’) such as
Amplifier module monitoring.
∧
Membrane Switch
To step upwards through choices offered in the mode
selected.
∨
Membrane Switch
To step downwards through choices offered in the mode
selected.
Unmarked
‘Soft’ keys
Membrane Switches
To select various choices offered in the mode selected.
Unmarked
Display
20 Character by 4
line LCD (back illum-
inated by LEDs)
Indicates present mode (middle of top line) with status,
input parameters etc. and next key operation choices
below.
Note an internal sounder indicates correct membrane switch key operation by a single beep or an
invalid key input by a short series of beeps.
