Installation and Operation
Troubleshooting
48 X72 Desiger’s Reference and User’s Guide 097-10603-01 Rev. A – November 2004
Troubleshooting
After installation, if the X72 unit fails to provide outputs, or the rubidium oscillator
fails to achieve lock, check the following:
The external power supply is providing power
The external power supply is providing the correct power
The interface cable may be defective – perform a continuity check
Is there excess humidity or moisture inside the operating area
Is the ambient temperature below –40° C or above +85° C (the unit will not
startup properly in excessively cold or hot temperatures)
Repairs
The X72 is not field repairable, but some firmware upgrades can be done in the
field, as noted in Start-up Sequence, on page 45. If the unit should fail, do not
remove the cover of the unit and attempt to make repairs.
If the unit no longer operates properly, or if it has reached the end of its effective life,
please visit Symmetricom's web site at www.symmetricom.com and click the
support, warranty and repair link. You can also type the following link into your
computer:
www.symmetricom.com/support/warranty_and_repair/repair_form.aspx?prodtype=
TSD.
Once you submit your form through the Internet, a confirmation will be sent back to
you. Requests are processed within 24 to 48 hours. Once processed, you will
receive an e-mail from the Repair Administration group that provides your RMA
number, warranty information or repair cost if applicable, and the address of where
to send the unit for repair.
If you have questions regarding the status of your RMA you may reach our Repair
Administration department at 888 367 7966, option 3. You may also e-mail your
requests or queries to TSDRMA@Symmetricom.com. Our fax number is
559 961 5175.
Note: All pins must have a connection in the cable’s Molex
connectors. This is especially important in the case of the power and
ground pins.
Note: Unit warranty is void if the cover is removed or if the protective
seals covering the two tuning and adjustment holes are torn or
removed.
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