trouble to a stage. A block diagram of the transmitter is of great value during
this step of the troubleshooting procedure. The block diagram portrays the various
stages of the transmitter and shows the interstage connections.
A knowledge of
what each stage of the transmitter is designed to do will speed the localizing
step. Once the trouble has been localized to a stage, the schematic diagram can be
used to isolate the trouble to a component.
The following is an analysis of the
block diagram of a typical high-powered radiotelephone transmitter shown in figure