HP 8562E Service Manual page 404

50. If the spectrum analyzer center frequency is 300 MHz, the voltage at A14J18 pin 3 should
measure -3.35 V f0.25 V. The voltage may also be determined from the following
equation:
V = -(first LO Frequency -2.95 GHz) x 2.654 V/GHz
51. The voltage at A14U330 pin 2 should measure -3.4 V f0.2 Vdc. This represents a
current setting the YTO to approximately 2.95 GHz.
52. Return jumper A14J23 to the NORMAL position.
1 l-30 Synthesizer Section