Rohde & Schwarz Inc NV830X Benutzerhandbuch
Chapter 8
Service
2098.0188.72
- 8.23 -
E-1
7
Output Stage Components
You can replace the following output stage components:
Amplifier
Absorber
Note
Because of the extremely small probability of failure, replacement of the splitter-combiner
unit will not be described.
unit will not be described.
7.1
Replacing Amplifiers
When replacing an amplifier from the Rohde & Schwarz transmitters, you do not have to
remove any of the lines since the connections on the rear panel of the device are connected
to the rack using automatic connectors.
remove any of the lines since the connections on the rear panel of the device are connected
to the rack using automatic connectors.
7.1.1
Removing Amplifier
1. Switch off the amplifier via the AC distributor in the transmitter rack (turn the the appro-
priate protective switch to the "OFF" position).
Note
The other devices in the transmitter rack can remain connected. A transmitter with mul-
tiple amplifiers can remain in operation with reduced power during the exchange of the
amplifier.
tiple amplifiers can remain in operation with reduced power during the exchange of the
amplifier.
2. Undo the four captive screws (Torx screwdriver No. 20) on each side of the front panel.
ATTENTION!
Prior to being removed, the amplifier must be switched free of all voltages in order to pre-
vent any possible damage to the device due to contact consumption.
vent any possible damage to the device due to contact consumption.