Thompson ViBE EM4000, Руководство пользователя

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Chapter 5 ’Servicing’ — Preventive and corrective maintenance operations
142 ViBE EM4000 — Release 1.10
User Manual — 46073586AB02
Preventive and corrective maintenance operations
Cleaning chassis ventilation grids
If dust is left to build up on the Encoder ventilation grids, the internal
temperature of the chassis will rise and this will affect device
performance, service life and reliability.
You are therefore advised to regularly clean the ventilation grids
(approximately every year).
Replacing chassis fans
The fans fitted in the chassis have a service life of 65,000 hours. They
should therefore be replaced every six years.
The fans also need to be replaced if one of them is faulty. To perform
these operations, please contact Thomson Video Networks Customer
Service.
Fault diagnosis
The chassis features a monitoring device that feeds an alarm back to the
Management or Monitoring System in the following cases:
„ One of the fans is faulty
„ The temperature on one of the boards exceeds 55°C. This high
temperature could be due to a faulty or blocked fan, or an outside
temperature which is too high.