R.V.R. Electronica PJ1000-LIGHT, Руководство пользователя

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24 / 32 User Manual Rev. 1.0 - 20/06/08
PJ500C-LCD, PJ700C-LCD & PJ1000light
8. Operating principles
Figures below provides an overview of PJ1000light (fig.8.1) and PJ500C-LCD and
PJ700C-LCD (fig.8.2) modules and connections.







  




 





   










Figure 8.1
PWR INPUT
MEASURE
SPLITTER
LPF +
DIRECT. COUPL.
COMBINER
FUSE BOARD
BIAS INTERFACE PANEL
TELEMETRY
MAIN PS
SURGE
PROT.
PFC
(or RECTIFIER)
LED CARD
R.F.
INPUT
R.F.
OUTPUT
RF MODULES
MAINS
R.F. 2 X R.F. 2 X R.F. R.F.
DC
2 X 50VDC
2 X VPA (50VDC)
2 X VPA (50VDC)
FWD PWR
RFL PWR
BIAS
PS ALARM
VOLTAGE REG.
SERVICES PS
3 dB
ATTENUATOR
Figure 8.2
Following is a brief description of the different module functions; all diagrams and
board layout diagrams are included in the “Technical Schedule” Vol.2.
8.1 Power supply
PJ500C-LCD, PJ700C-LCD and PJ1000light power supply section is made up
of a surge protection module and two power supply units: