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Preventive Maintenance and Fault-finding
Instruction Manual: evolution 5000 E57xx DSNG and DENG Voyager Encoder Page 6-3
ST.TM.E10076.3
6.1 Introduction
This chapter provides the schedules and instructions, where applicable, for
routine inspection, cleaning and maintenance of the equipment which
should be performed by an operator. There are also some basic
fault-finding procedures to follow in the event of a suspected Encoder
failure.
6.2 Preventive Maintenance
6.2.1 Routine Inspection - Cooling Fans
The fans on the Encoder can be temperature controlled so may not be on if
the ambient temperature is low. Refer to Annex B, Technical Specification,
Table B.27 for more information.
NOTE...
Failure to ensure a free flow of air around the unit may cause overheating. This condition is detected
by a temperature sensor on the Base Board which causes the alarm relay to be energised.
6.2.2 Cleaning
Unplug the Encoder from the wall outlet before cleaning the exterior with a
damp cloth. Do not use liquid cleaners or aerosol cleaners.
NOTE…
Only the exterior of the case should be cleaned.
6.2.3 Servicing
Damage Requiring Service
WARNING…
DO NOT ATTEMPT TO SERVICE THIS PRODUCT AS OPENING OR REMOVING COVERS MAY
EXPOSE DANGEROUS VOLTAGES OR OTHER HAZARDS. REFER ALL SERVICING TO SERVICE
PERSONNEL WHO HAVE BEEN AUTHORISED BY TANDBERG TELEVISION.
Unplug the equipment from the wall outlet and refer servicing to qualified
service personnel under the following conditions:
1. When the power supply cord or plug is damaged
2. If liquid has been spilled, or objects have fallen into the product
3. If the product has been exposed to rain or water
4. If the product does not operate normally by following the operating
instructions
5. If the product has been dropped or the case has been damaged
6. When the product exhibits a distinct change in performance