I have a 'new to me' standard 53132A, S/N 3736Axxxxx, Firmware Ver. 3703, with a P/N 0950-2496 power supply, that I would like to add an HP Opt 010 HS Oven OCXO reference to that consists of a 10811-60160 OCXO mounted on a 53132-60011 Osc Support Board.
I am confused about how to do this based on what I read in the Assembly-Level Service Guide and the CLIP that I downloaded from the Keysight website. The Opt 010/012 power supply that is referred to in the ALSG is P/N 53132-60208. As best I can tell, the power supplies are both 47W power supplies and the only difference I can see is that the -9 VDC supply line is to a separate connector (designed to connect to J2 on the Osc Support Board) rather than to the connector that mates with J18 on the 53132-60014 Main Board. My Osc Support Board is P/N 53132-60011 and has a number of parts populated that are not on the P/N 53132-60016 Osc Support Board, that I was expecting to receive. It is designed to support the 53132-60010 Output Select Board (as best I can tell from the marginally readable CLIP schematic) that I also received. The Osc Support Board also does not have a connector at J2. In addition, the ALSG refers to connecting the cable from the power supply to J2 of the Osc Support Board 'if the two wire cable exists'. What does this mean? Pictures of the 53132-60016 Osc Support Board that I have seen have a 'plug' at J2 that connects pin 2 of J2 to pin 3. These pins are connected to J4, the connector to the 10811 installed on the Osc Support Board. Pin 2 of J2 connects -9 VDC to pins 30 and 15 of J4, the 'GND' connector of the OVEN of the 10811. Pin 3 of J2 connects to 'GND' of the 53132-60011 (and 53132-60016) board. This results in the OVEN of the 10811 being either powered by 12 VDC if the 'plug' at J2 is in place, or 21 VDC if J2 is connected to the -9 VDC supply. The OVEN is spec'd at 20 to 30 V per the manual for the 10811 that I have. Is the 10811 is powered by 12 VDC in the 53132A or 21 VDC, depending on whether there is a connection to the power supply or not? I'm confused. I would appreciate any information that anyone can supply regarding whether there is a difference in the two power supplies, other than the connectors, and whether or not the 10811 for the 531332A (Opt 010 being 10811-60160, Opt 012 being 10811-60260) is powered by 12 VDC or 21 VDC. I suspect I need to provide the -9 VDC supply to J2 of the Osc Support Board. Do I also need to supply the -9 VDC supply to the main board of the counter at J18? Are these connections somehow already in place on my 531332-60014 Main Board and I do not need to bother installing a connector on the Osc Support Board? Also, what is the role of the 53132-60010 Output Select Board and where is it installed? If at all? Thanks in advance for any help. Joe _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.