Archimede 5000 series- FM Power Amplifiers
User’s manual – Page 26 of 65
6.4.e
Extraction of direct/reflected power levels and low-level R.F. signal
This circuit (
Par.5.4 - part # [37]), mounts directional couplers, used to extract the direct and reflected power level signals and a
low R.F. level from the output power signal:
[72]
Reflected power signal
– for measurements directly carried out by the analog & controls board, shown on the LCD display.
[73]
Direct power signal
– for measurements directly carried out by the analog & control board, shown on the LCD display.
[74]
Low level R.F. output signal
– connected to the
RF MONITOR
connector [2] located on the front panel.
6.5
LCD display board
This board integrates the LCD display [7], and three LEDs (for further details
5.1.a). By communicating directly with the CPU, the
LCD display keeps the user informed with various information and messages (e.g. menus, alarms etc.)
6.6
Digital encoder (multifunction knob)
This board is located in the back of the front panel. It holds the rotary digital encoder, directly connected to the multifunction knob [8].
The board communicates directly with the CPU, which detects the user commands: clockwise rotations, counterclockwise ones, as
well as pushbutton operations.
72
73
74
Summary of Contents for ARCHIMEDE 5000 Series
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