Operation Manual Part 3

Digital Liquid Cooled UHF
TV Equipment
Description / Test points / Location of units
9946 V1
45321648.01 104 A E
preliminary
90 / 131
Numéro / Number Doc. Rev. Lan
g
u.
16/06/2006
Pa
g
e
Information contained is this document is confidential, is THOMSON property and cannot be disclosed in whatever form without prior written authorization of THOMSON.
3.11. Amplifier power supply, 37419700.02
3.11.1. Outline
The amplifier power supply contains the following sub-units :
♦ filter unit,
♦ diode bridge,
♦ PFC card together with boost inductors,
♦ control card containing :
• circuits for current limitation, mains protection and surveillance devices,
• two DC/DC converters,
• monitoring system,
♦ step down transformer,
♦ output «LC» filter circuit,
♦ output signals interface card.