Check 10, Dc-Dc Converter Input Voltage - Agilent Technologies 4263B LCR Service Manual

Check 10, DC-DC Converter Input Voltage

1. Turn on the 4263B.
2. Using a multimeter, check if the voltage between the \DC OUT" test pad and TP500 (DC-DC
Converter input voltage) is between 12 V and 15 Vdc. Refer to Figure 4-14 for test pad and
pin locations.
3. If the voltage is in range, proceed to the \Check 11, DC-DC Converter Open Output
Voltages", otherwise proceed to the \Check 12, Transformer Secondary Voltage".
T roubleshooting 4-17