Data redazione: 25/07/03
R.V.R. Elettronica S.r.l. (BO)
VJ30000-TE - R.F. Tube Amplifier
44
CHAPTER 4
MAINTENANCE
4.1 SAFETY REQUIREMENTS
WARNING WARNING WARNING WARNING WARNING WARNING WARNING
When the transmitter is operational, removing the rear panel will expose lethal voltages.
Use insulated tools for all types of adjustment and do not touch any internal components
when the unit is switched on.
Ensure that the unit is disconnected from all sources of power before carrying out any inspection or
maintenance work.
MAINTENANCE LEVEL 1
4.2 ROUTINE MAINTENANCE
The only routine maintenance required by the amplifier is the periodic inspection of the
cooling fans, the replacement of the air filter and the removal of dust from the tube cavity.
The period between such action will depend on ambient operating conditions such as
temperature, air-borne dust levels and humidity. It is advisable to check the unit every 3
months, replacing worn or noisy fans.
Eventual replacement of the tube will also be necessary.
The life of the tube will depend strongly upon operating conditions: eg. line voltage
fluctuations greater than ± 5%, ambient temperature greater than 30 oC, high humidity,
presence of dust and misalignment of the amplifier will all lead to a greatly reduced tube
life.
MAINTENANCE LEVEL 2
4.3 MODULE REPLACEMENT
N.B.
TO FIT A MODULE, FOLLOW THE REMOVAL PROCEDURE IN REVERSE.
N.B.
THESE PROCEDURES SHOULD ONLY BE CARRIED OUT BY HIGHLY SPECIALIZED
TECHNICIANS USING THE CORRECT EQUIPMENT.
MAINTENANCE ERRORS CAN CAUSE SERIOUS DAMAGE TO THE UNIT AND WILL
AUTOMATICALLY MAKE THE WARRANTY VOID
.
