Assembly- Level Service Manual
This manual describes how to service the Symmetricom 5071A Primary
Frequency Standard. The information in this manual applies to instruments
having the number prefix listed below, unless accompanied by a "Manual
Updating Changes" package indicating otherwise.
SERIAL NUMBER PREFIX: US4538 AND ABOVE
Some sections of this manual refer to using the ‘5071A Profiling software’. This
revision of the manual no longer supplies a 3.5-inch floppy disk with this
software. To obtain a copy free of charge visit our web site at
http://www.symmttm.com/products_pfr_5071A.asp and follow the links to
“Software and Drivers”. The latest revision of the Profiling Software
(Symmetricom P/N 05071-13501) can then be saved to your computer hard disk.
This software is only available for use with a Windows®-based PC.
There are a limited number of 5071A replaceable parts available. The 5071A
Primary Frequency Standard is a very precise and complex product and
Symmetricom strongly recommends that they be sent in for repairs and post-
repair performance testing. However, there are some assemblies, such as the
Cesium beam tube that we do sell should you wish to perform this in your own
facility. We require that you have a copy of the 5071A Assembly-Level Service
Manual (P/N 05071-90040) before doing any repairs or parts replacements.
Although Symmetricom Global Services (SGS) is always available to help when
you have questions, they cannot be expected to provide troubleshooting
assistance when you are repairing the 5071A - That is the purpose of the 5071A
Service Manual.
5071A Primary Frequency
Standard