User's Manual Part 1
Digital Liquid Cooled UHF
TV Equipment
Exploitation
Information contained is this document is confidential, is THOMSON property and cannot be disclosed in whatever form without prior written authorization of THOMSON.
1.9. Procedure for switching on and off
1.9.1. Switching on-air and switching off-air
Switching on (TX on) means switching the transmitter to air when mains has already been switched to
Switching off (TX off) means taking the transmitter off-air while keeping the mains switched on.
On-air and off-air sw L.
the transmitter.
itching are carried out by using the "ON" and "OFF" keys of the PC
ACTION RESULT
Switching the
transmitter on
♦ Press on the PCL "ON" key. ♦ The PCL "On" indicator lamp lights up to indicate
that the transmitter is on-air.
♦ The amplifier power supplies and cooling system
are switched on.
♦ The system is on-air.
Switching the
transmitter off
♦ Press on the PCL "OFF" key. ♦ The PCL "Off" indicator lamp lights up to indicate
that the transmitter is off-air.
♦ The amplifier power supplies and cooling system
are switched off.
♦ The system is off-air.
On/off override
The SW2 and SW3 switches on the exciter/CPU interconnection card and RSCOM software can be
used to switch the transmitter off (SW3) or on (SW2) if the CPU card is missing or faulty.
1.9.2. Switching the reserve exciter on and off
Only in Double Drive Version
Switching the reserve exciter on and off is only possible if the PCL is unlocked, i.e. enabled (see
relevant procedure).
It is carried out using the "CONTROL Level 1" window independently of the transmitter operating
mode (normal mode or maintenance mode).
Note : While the reserve exciter is on, automatic changeover of the exciters is impossible.
ACTION RESULT
Selection
♦ Press the "STDBY" control keys in the
"CONTROL Level 1" window.
♦
The message window above the control
keys flashes while displaying the function
(on or off) to be carried out.
Validation of selection
♦ Press the "VALID" key.
♦
The message window above the "STDBY"
control keys stops flashing and remains lit
while displaying the status (on or off) of the
reserve exciter.
Cancelling the
selection
♦ Press the "CANCEL" key.
♦
The message window above the "STDBY"
control keys stops flashing and remains lit
while displaying the status (on or off) of the
reserve exciter.
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Numéro / Number Doc. Rev. Lan
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27/06/2006
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