Operation Manual Part 1

Digital Liquid Cooled UHF
TV Equipment
Detailed operational description
9946 V1
45321648.01 104 A E
preliminary
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Numéro / Number Doc. Rev. Lan
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Information contained is this document is confidential, is THOMSON property and cannot be disclosed in whatever form without prior written authorization of THOMSON.
2.4.4. Log book control system
Each new event, which is detected by the system, is recorded in the logbook; each event is given a
title and is dated. The last 500 events can be stored.
The operator has the facilities to control the flow of information which is sent to the log book terminal
by using the Local Control Panel.
2.4.5. On/Off commands and change-over override switch
2.4.5.1. Controls
The transmitter configuration can be controlled by override switches mounted on the exciter/CPU
interconnection card mother board as follows :
♦ SW1 : switches the transmitter to installation mode,
♦ SW2 : switches the transmitter on if the CPU is faulty or not present,
♦ SW3 : switches the transmitter off if the CPU is faulty or not present,
♦ SW4 : switches exciter A to air if the CPU is faulty or not present,
♦ SW5 : switches exciter B to air if the CPU is faulty or not present.