A5 Attenuator Switch Driver Board - HP 85106D Manual

A5 Attenuator Switch Driver Board

Procedure 10
Figure 6-22 Attenuator Switch Driver Board
1. Remove cables W21 and W22 from the A5 attenuator switch driver
board.
2. Switch the instrument to port 1. When port 1 is active, the port 1
indicator light on the A5 board will be green and the port 2 indicator
light will be amber. The voltage measured at A5J1 is +15
and the voltage measured at A5J2 is -15
3. Switch the instrument to port 2. When port 2 is active, the port 2
indicator light on the A5 board will be green and the port 1 indicator
light will be amber. The voltage measured at A5J1 is -15
the voltage measured at A5J2 is +15
HP 85105A mm-Wave Controller
A5 Attenuator Switch Driver Board
±
1.5 Vdc
±
1.5 Vdc.
±
1.5 Vdc and
±
1.5 Vdc.
HP 85106D mm-Wave System 6-39