Re: [time-nuts] 3325A attenuators

2007-02-20 Thread Normand Martel
Do you hear the relays working when you change the signal level? If yes, and that's probably the case, i definitely suspect burned-out attenuator resistors/modules (HIGHLY probably due to excessive reverse power (Signal generator directly plugged to a transceiver which has been accidently keyed)).

[time-nuts] 3325A attenuators

2007-02-17 Thread Paul S . Linsay
Hi, I have a 3325A and the amplitude attenuators are not working. I opened it up and it has sealed black relays, not the unsealed ones mentioned in the maintenance manual. When I run the front panel self- test everything passes. Any suggestions on what to do next? Thanks for your help, P