Chapter 8 Service
2104.6536.72 - 8.4 - E-1
2 Replacing Instruments
You can remove and replace the following transmitter components in case any faults occur:
R&S SX801 exciter
Amplifiers in the R&S VH8001Cx family
as well as the following instrument components:
– Fans for the exciter and amplifiers
– Amplifier power supplies
Note Replacing the stated instrument components is described in the corresponding instrument
manuals (see also the "Information" section in this chapter).
2.1 Replacing the R&S SX801 Exciter
The following description applies to a single transmitter without a rack.
2.1.1 Removing the Exciter
1. Disconnect the power cable at the rear of the exciter.
2. Remove all of the remaining cables on the rear of the exciter.
3. Carefully remove the exciter from the transmitter system.
2.1.2 Installing the Exciter
To install the exciter, simply reverse the instructions for removing the exciter.
1. Carefully place the instrument back on the transmitter system.
2. Connect the cables to the instrument in accordance with the labeling (yellow cable
sleeves).
3. Connect the power cable to the rear of the instrument.
2.2 Replacing Amplifiers in the R&S VH8001Cx Family
The following description applies to a single transmitter without a rack.
2.2.1 Removing the Amplifier
1. Disconnect the power cable at the rear of the amplifier.
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