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User Manual
Rev. 1.0 - 20/06/08
PJ500C-LCD, PJ700C-LCD & PJ1000light
8.1.3 Switching power supply (PSL2403-03 and PSL5034)
The switching power supply incorporated in this amplifier feeds 50 VDC to the RF
power modules with 25 A maximum current for
PJ500C-LCD
and
PJ700C-LCD
and 34 A maximum for
PJ1000light
.
This module has a control input that enables output voltage reduction when needed
(for instance, in the event of RF output power reduction). Another input signal is
used to shut down the power supply (0V output voltage) when any one of the
following conditions is verified:
• Power output disabled (set to OFF) by user in FNC operation menu (menu 4,
see chapter 5.3.1);
• Regulated power set to 0 Watt using the edit mode (menu 2, see chapter
5.2);
• An alarm or fault condition has occurred (see chapter 5.3.4).
8.2 Interface board (SL010IN5001)
This board performs the following tasks:
• It uses AC voltage from transformer TR1 to generate and distribute service
power supply over the panel board;
• It controls and provides interfacing of the mains surge protection module
(SLSRGPRPJ1KM);
• It controls and provides interfacing of the power amplifier power supply module
(PSL2403-03 and PSL5034);
• It processes and provides interfacing of the control signals to/from the Bias
Board (SLBIAS1K3U-2);
• It processes and provides interfacing of the control signals to/from the Panel
Board (SL007PC2003);
• It acquires and processes the input signals from the input power measurement
board (SLMPIPPJ1KC);
• It feeds and operates the cooling fans;
• It feeds and controls the LED indicator board.
8.3 Panel board - CPU (SL007PC2003)
The panel board accommodates the microcontroller that runs the machine control
software and all user interface elements (display, LED’s, keys, …).
