[ICOM] IC-725 PLL Problem

Adam Farson farson at shaw.ca
Thu Aug 11 14:45:45 EDT 2005


Hi Dave,

You can download the IC-725 service manual here:

http://www.qsl.net/icom/manuals.html

Or: http://www.marcucci.it/english/download/

You could start with a DDS realignment, and continue on from there. If there
is no response to adjustment attempts, the reference oscillator (master
oscillator) may have dropped out. That will require troubleshooting with an
oscilloscope or RF voltmeter. 

I once had a 725 in which the DDS dropped out of lock. A realignment fixed
the problem, as it had been on the edge of unlocking.

Cheers for now, 73,
Adam VA7OJ/AB4OJ



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