Hi Usually (but not always) these are VCO drift issues. If you can spot a tuning adjust on that board you are lucky. A lot of this stuff is now done “no adjust” boards. They just swap out the board …
Bob > On Jan 16, 2015, at 12:27 AM, Chuck Forsberg WA7KGX <[email protected]> wrote: > > My Advantest spectrum analyzer now comes up with an > error 900 complaining about no PLL lock. > > This would appear to be a fault on the PLL board but the > brain damaged Advantest service manual has no schematics > for the boards. > > Any suggestions other than don't buy anything from Advantest? > > > -- > Chuck Forsberg WA7KGX [email protected] www.omen.com > Developer of Industrial ZMODEM(Tm) for Embedded Applications > Omen Technology Inc "The High Reliability Software" > 10255 NW Old Cornelius Pass Portland OR 97231 503-614-0430 > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
