Overall Block Diagram - Agilent Technologies 4263B LCR Service Manual

Overall Block Diagram

Figure 4-2 shows the overall block diagram of the 4263B.
The signal source section applies a measurement signal to the DUT. The transducer block
converts the voltage across and the current through the DUT to two voltages which are output
to the vector ratio detector. The voltage across the DUT is input to di erential ampli er,
. The current through the DUT is converted to a voltage before being input to di erential
ampli er, . The vector ratio detector switches these two voltages to be converted to digital
data. The CPU calculates DUT impedance from the vector ratio of these two voltages and
displays the result on the LCD.
4-4 T roubleshooting