Thanks for the response. It sounds as if the mod should, therefore, have no effect on the front panel reading. The fact that it does suggests that the problem might be in the 05061-91329 since the unit appears to operate appropriately. There are some tantalum caps on the board. I'll start with those.
I would appreciate any documentation that you might have. Joe -----Original Message----- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of serv...@frequencystandards.com Sent: Sunday, August 30, 2009 10:24 AM To: Time-nuts@febo.com Subject: Re: [time-nuts] 5061A with Monitor Output and Alarm Output "I recently acquired a 5061A (with a digital LED clock) reportedly in non-operating condition that has two additional connectors on the back labeled 'Monitor Output' and 'Alarm Output'. In addition, there is a printed circuit card about 3/4 as long as the A17 board and sitting on top of the A17 board with the part number 05061-91329. It connects with numerous wires to these two connectors." This modification allowed for remote monitoring of the condition of the 5061. By remote, I mean in another room etc, not long distance as we are used to now. I don't have the manual in front of me right now but I seem to remember you could connect the monitor output jack to a standard hi impedance voltmeter and see what the level was the meter switch was set to. I remember seeing one unit that had several pins on themonitor jack that allowed you to monitor most of the positions of the front panel switch without having to change the switch itself. The alarm output would drive a lamp similar to the one on the front of the 5061 to alert you to an unlocked condition. I will try to dig out my manual that covers the mods so I can give you a more accurate description. The basic idea is as I stated above though. Chuck Norton _______________________________________________ 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. _______________________________________________ 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.